DE102009004379A1 - Eyeglass lens blank manufacturing method, involves manufacturing blank holder by unit-wise arrangement of material such that contact surface of blank holder has shape that is adapted to surface of lens blank - Google Patents

Abstract

The method involves manufacturing an eyeglass lens blank holder (56) by unit-wise arrangement of a material such that a contact surface (60) of the eyeglass lens blank holder has a shape that is adapted to a surface (64) of an eyeglass lens blank (40). The eyeglass lens blank is arranged at the contact surface of the eyeglass lens blank holder. Free surface of the eyeglass lens blank is processed, where the free surface of the eyeglass lens blank corresponds to a predetermined surface. The eyeglass lens blank is inserted into an eyeglass lens holder. Independent claims are also included for the following: (1) a device for manufacturing an eyeglass lens blank (2) a computer program product comprising a set of instructions to perform a method for manufacturing the eyeglass lens blank.

Description

The The following invention relates to several methods, one use, a manufacturing device and a computer program product.

traditionally, are in the manufacture of spectacle lenses, especially of individual ones lenses sometimes very costly manual process steps necessary. this applies especially in the production of so-called mittendickenminimierter lenses (MDM glasses) or even in the production of spectacle lens blanks, the extraordinary have optical and / or geometric properties and, for example in small quantities needed become.

For example In the production of MDM glasses regularly dome, which around the edges of the glasses or at the edges the glasses arranged are manually covered before a coating process, so that the calottes not exposed to the coating material.

It is thus an object of the present invention, in a simple and effectively a cost-effective production of spectacle lenses, in particular of individual spectacle lenses to enable. This object is solved by the subject matters of the independent claims. Preferred embodiments and / or embodiments Subject of the dependent Claims.

Method according to one Aspect of the invention

• – Vorgeben von Flächendaten einer Fläche eines Brillenglasblanks, insbesondere Vorgeben eines Brillenglasblanks,
• – Herstellen einer Brillenglasblankhalterung durch einheitenweises Anordnen zumindest eines Werkstoffes derart, daß eine Kontaktfläche der Brillenglasblankhalterung zumindest bereichsweise eine zu der Fläche des Brillenglasblanks angepaßte Form aufweist,
• – Anordnen des vorgegebenen Brillenglasblanks an der Kontaktfläche der Brillenglasblankhalterung
• – Bearbeiten der freien Fläche des Brillenglasblanks, so daß die Freifläche des Brillenglasblanks einer vorgegebenen Fläche entspricht.

One aspect of the present invention relates to a method for producing a spectacle lens comprising the steps:

• Specifying surface data of a surface of a spectacle glass blank, in particular specifying a spectacle glass blank,
• Producing a spectacle glass blank holder by arranging at least one material in units such that a contact surface of the spectacle glass blank holder has, at least in regions, a shape adapted to the surface of the spectacle glass blank,
• - Arranging the predetermined spectacle glass blank on the contact surface of the spectacle lens blank holder
• - Edit the free surface of the spectacle glass blank, so that the free surface of the spectacle glass blank corresponds to a predetermined area.

in the For purposes of the present invention, the term "default" may also include Provide include. "Pretend may in particular also include that a series, a design, a series to which the spectacle lens blank belongs, etc. is given. "Predict" can continue include that one surface shape and / or parameters of the spectacle lens blank is / are provided. In particular, it may pretend that a base curve and / or a curvature and / or a full one surface shape a surface the spectacle lens blank is provided and by means of this information or data the contact surface the eyeglass lens holder is made without the eyeglass lens blank physically provided. Thus, you can surface data in particular a base curve and / or a curvature and / or arrow heights and / or a complete surface shape a surface and / or other characteristic parameters of the spectacle glass blank considered become.

Of the Material for producing the eyeglass lens holder can also be referred to as eyeglass lens holder material.

A "lens blank" is a Precursor of a spectacle lens, from which a spectacle lens is made. Preferably, the spectacle glass blank has a circular circumference on. Furthermore, preferably, the spectacle glass blank has two surfaces. It is possible, that to Producing a spectacle lens processed a surface of the spectacle lens blank becomes and the second surface of the spectacle glass blank is not processed. "Edit" includes in particular a mechanical Edit, such as B. a milling, Grinding, polishing, etc. Thus, the second surface of the Spectacle glass blanks already the final surface shape exhibit. Here you can Different lens blanks by different surface shapes, in particular distinguish different base curves. A series of spectacle lens blanks can for example be defined in such a way that the Series only spectacle glass blanks with identical surface shape not to be worked on surface having. The surface to be processed For example, after processing may be a so-called free-form surface.

It is possible, too, that both surfaces of the spectacle lens blank.

One Spectacle lens differs from a spectacle lens blank in that that both surfaces of the spectacle lens their final surface shape where coatings are not at the surface form considered become. Here, a rough-round spectacle lens, a spectacle lens whose circumferential shape has not yet been adapted. A raw-round spectacle lens has not yet been bound, d. H. the edges of the spectacle lens blank have not been cropped.

One Spectacle lens, also referred to as finished spectacle lens can be, thus has areas with definitive or finished surfaces and a final one or completed circumferential shape.

In In a typical workflow, the lens glass goes through editing one or both surfaces into a rough-round lens over and the rough-round lens goes through editing the scope in a final or finished spectacle glass over.

The free area, which is processed, may also be referred to as the processing surface of the spectacle glass blank become.

The adapted Shape or surface the eyeglass lens holder, for example, as a negative mold is designated, may in particular be designed such that a surface of the Eyeglass lens blanks and the contact surface of the eyeglass lens holder directly contact each other. It is also possible that an indirect Contact exists. For example, an adhesive, in particular a two-sided adhesive tape on the contact surface of the eyeglass lens holder be arranged and in arranging the spectacle glass blank a surface of the Eyeglass blanks come into contact with it. This area can also as a contact area of the spectacle lens blank or as a spectacle lens blank contact surface. These area in particular, a prefabricated surface of a prefabricated Glasglasblanks be.

For example Is it possible, the existence Eyeglass lens for an MDM glass with an already finished surface, especially one already finished eyeglass lens contact surface is selected. This area can for example, the front surface, d. H. the object-side surface of the spectacle lens. This area For example, it can also be preselected with a certain base curve. It is also possible that these area a so-called freeform surface is.

These Area, d. H. the spectacle lens blank contact surface is at the contact surface of the Eyeglass lens holder arranged. Preferably, the contact surface of the Eyeglass lens holder has a size that is substantially is the same size to the contact surface of the spectacle glass blank. Also, the contact surface is in this Contact area, which is essentially identical to the size of the contact surface of the Eyeglass lens blanks is formed such that the contact surface of the Eyeglass lens holder substantially a negative mold in comparison to the contact surface of the spectacle glass blank. In other words, it is possible that the contact surface of the Spectacle glass blanks the contact surface completely contacted the eyeglass lens holder, wherein in this contact area, the contact surface of the eyeglass lens holder according to the contact surface the eyeglass lens is negatively formed, d. H. one to the contact area the spectacle glass blank adapted form having.

has the contact surface the spectacle lens blank, for example, a projection on, points the contact surface the eyeglass lens holder a corresponding return on. For example, in a simple representation, the contact surface of the Spectacle lens blanks a spherical area with a given radius of curvature Be his. The contact surface of the spectacle glass blank is, for example, a convex surface. In In this case, the contact surface the eyeglass lens holder a concave surface, also with a radius of curvature R. The same applies if the contact surface of the spectacle glass blanks of a spherical one Form deviates, in particular a free-form surface is. Here, the contact surface of Eyeglass lens holder substantially identical to the contact surface of the Eyeglass formed so that the contact surface of the Eyeglass blanks substantially completely the contact surface of the Contact lens holder. In particular, it is possible that at least 80%, preferably 85%, preferably 90%, preferably 95%, preferably 99% of the geometric dimension of the contact surface of the spectacle glass blank the contact area contacted the eyeglass lens holder. Thus, only 20% contact 15%, 10%, 5%, 1% of the contact area of the spectacle lens blank, the contact surface of the spectacle lens blank holder Not.

The free area, d. H. the working surface of the Spectacle lens blanks is the area which is processed in such a way that the spectacle glass blank a finished spectacle glass is formed, wherein the finished spectacle lens the given data, in particular the predetermined corresponds to optical data. In other words, the processing area of the Glasses lens blanks machined in such a way, in particular milled, shaved, sanded, polished, etc., that the working surface a given area corresponds or has a predetermined surface shape.

Of the Term "corresponds" can in the The meaning of this application is that the actual or manufactured area, i. H. the actual or machined processing surface except for fault tolerances the shape and dimensions of a theoretical given area having. It is also possible, that the sagittas of the spectacle lens are measured and the processing surface such is manufactured or processed that at a given contact surface of Eyeglass glassblank the finished spectacle lens predetermined arrow heights at certain bases having.

Alternatively or additionally, it is also possible that after processing the processing surface, the spectacle lens is turned, and the previously processed surface of the spectacle lens blank is arranged on a spectacle lens blank holder. Thus, the contact surface of the processed spectacle glass blank becomes the free surface and the free surface of the processed Bril lenglasblanks to the contact surface. It is possible that, for arranging the processed spectacle glass blank, a corresponding new spectacle glass blank holder is produced, the contact surface of this new spectacle glass blank holder being adapted to the processed processing surface of the spectacle glass blank, ie the new contact surface of the spectacle glass blank. The spectacle glass blank can thus be arranged with the machined processing surface to the spectacle glass blank holder. Thus, now the machined machining surface is the contact surface. The former contact surface can now be edited, so that the former contact surface is now the free surface or the processing surface.

Thereby Is it possible, that first in the second processing step, the surfaces of the spectacle lens or their surface shape is completed or be and in particular both surfaces of the Spectacle lenses are processed one after the other.

The inventive method allows advantageously that a Eyeglass lens blank in a simple and reliable manner in or on an associated Eyeglass lens holder can be arranged and fixed there can, so that Eyeglass lens can be edited and in particular the lenses with desired Arrow heights formed can be. The arranging or fixing the spectacle glass blank in or on the Eyeglass lens holder is also referred to as "blocking." advantageously, Is it possible, that due the exact fit the contact surface the eyeglass lens holder, d. H. the blocker, no heavy metals Alloys need to be used more to pick up the lensblank. In particular, a fully supported blocking carried out be, d. H. that the contact area the spectacle glass blank substantially completely with the contact surface of the Eyeglass lens holder is in contact. This will be preferred by the shape adaptation of the contact surface of the spectacle lens blank holder to the contact surface of the spectacle glass blank reached. Thus, advantageously one Shape retention of the optical surfaces to be produced up to the edge allows become.

Farther Advantageously, due to the adaptation of the shape of the contact surface of the Eyeglass lens holder allows that eyeglass lenses up to the theoretically possible Minimizing the thickness can be made while avoiding can be that appropriate Editing tools, such. As a Fräßkopf, a polishing head, a Grinding head, etc., in the conventionally drive necessary alloy.

In other words allows the inventive method Advantageously, that eyeglass lens holders individually for each spectacle lens blank to be blocked or a series of such blanks, the one identical contact surface of the spectacle glass blank can be produced.

Of the Term "unitary" like him used in this application, describes that at least a unit, preferably a plurality of units of at least arranged a material and further preferably with each other and so the eyeglass lens holder, d. H. of the Blocker, is produced.

Especially it is also possible that a spectacle glass blank holder according to one predetermined spectacle lens blank was produced unit wise and further spectacle glass blanks by means of the spectacle glass blank holder be processed, the other spectacle glass blanks an identical or similar contact surface, d. H. belong to a common series of spectacle lens blanks.

Preferred embodiments of the procedure

• – Herstellen einer Brillenglashalterung durch einheitenweises Anordnen zumindest eines Werkstoffs derart, daß das Brillenglas zumindest bereichsweise in die Brillenglashalterung einsetzbar ist,
• – Einsetzen des Brillenglases in die Brillenglashalterung, und
• – Beschichten einer der Flächen des Brillenglases, wobei die Brillenglashalterung derart ausgebildet ist und das Brillenglas derart in der Brillenglashalterung angeordnet ist, daß die andere Fläche des Brillenglases im wesentlichen beschichtungsfrei bleibt.

For example, the method comprises the steps:

• Producing a spectacle lens holder by unit-wise arranging at least one material in such a way that the spectacle lens can be inserted into the spectacle lens holder at least in regions,
• Inserting the spectacle lens into the spectacle lens holder, and
• - Coating one of the surfaces of the spectacle lens, wherein the spectacle lens holder is formed and the spectacle lens is arranged in the spectacle lens holder, that the other surface of the spectacle lens remains substantially free of coating.

in the For the purposes of the present application, the material may be for manufacturing the spectacle lens holder also as a spectacle lens holder material be designated.

Farther Is it possible, that after coating one of the surfaces of the spectacle lens and the other surface of the spectacle lens is coated. Here you can on the different surfaces of the Spectacle lenses various coatings are applied.

Preferably comprises the spectacle lens holder a holding element and a cover element, wherein the spectacle lens is arranged in the holding element and the Cover element such on the lens and / or the holding element is arranged that the Holding element and / or the lid member a predetermined range a surface of the lens from the environment concludes.

The Retaining element and the cover element are produced unit wise.

Especially Is it possible, that this Holding element and / or the lid member forms a template. The Coating of a spectacle lens, in particular of an MDM glass, can thus by the use of automated manufactured individual stencils be greatly simplified. This may be due to the unit wise Production in a simple and cost-effective manner, a holding element and a lid member for every series of spectacle lenses or each lens individually made. Especially Is it possible, that too at exceptionally shaped lenses corresponding holding elements and cover elements can be made, so that too exceptionally shaped lenses be coated in a simple, in particular automated manner can.

For example includes the lid member the predetermined area of the surface of the Eyeglass lens gastight and / or particle-tight from the environment. In particular, this area of the area will be the full area of the area Spectacle lenses due to the interaction or mating the lid member with the holding member gas-tight and / or particle-tight completed by the environment. This is especially true for a gas / particle the one or the other used for coating the other surface of the spectacle lens become. For example, the spectacle lens may be exposed to steam which is formed by evaporation of coating material. This vapor can only contact the area to be coated, because the other area vapor-tight by the retaining element in connection with the cover element is completed.

For example the predetermined area of the surface of the spectacle lens is an area the in the normal use of the spectacle lens is used optically.

Of the operational use of the spectacle lens includes z. B. that the lens in a spectacle frame a pair of glasses is arranged. Furthermore, the operational use of the spectacle lens include that the spectacles on the head of the User, d. H. of the spectacle wearer is arranged, the glasses arranged in particular such is like the wearer of glasses the glasses are conventional wearing, d. H. that the wearing glasses through the glasses, especially the spectacle lens can look.

For example For producing the spectacle lens holder, a material or Material used in the manufacture of the spectacle lens a tool for processing the spectacle glass blank is not damaged.

One Tool for processing the spectacle lens blanks, for example a feeding head, one Polishing head, a grinding head, etc. include or be. advantageously, Thus, the spectacle glass blank or the spectacle lens still in the blocked state be brought to shape. For example, the eyeglass lens holder made of plastic or a metal that is softer is as the tool used, is also used in a metal-cutting production of the lens from the spectacle lens does not damage the tool. consequently the block process, i. H. holding the eyeglass blank and optimizing the processing of the spectacle lens blanks. Further preferably The lens holder can be made of a material be that recyclable is, so that after production of the spectacle lens, the spectacle lens holder is environmentally friendly can be disposed of, so that too in this aspect, an individual production of the eyeglass lens holder is advantageous. It is also possible, that this Material or the material of the lens holder is reused and from this a new spectacle glass blank holder is produced.

For example the eyeglass lens holder is formed so that the eyeglass lens holder an area of the spectacle lens blanks completely embraces.

It may be possible be that through the unit-wise production of the eyeglass lens holder Eyeglass lens holder has an individual finished shape, that conclusively to the edge made with the non-machinable surface of the spectacle lens blank is, d. H. to the edge with the contact surface of the spectacle glass blank. This is especially true when using spectacle lens blanks, the extraordinary dimensions and shapes exhibit.

Consequently is especially in a rotating processing of the spectacle glass blank a secure and optimal attachment or fixation of the spectacle glass blank secured to the eyeglass lens holder, since thereby the acting forces can be better absorbed, as if the spectacle lens blank only on one surface of the Eyeglass lens holder is arranged without the spectacle lens blank is embraced. This applies advantageously even with non-rotationally symmetric Eyeglass lenses or Spectacle lens blanks, in particular for MDM glasses or their precursors, so that too for this one fully supported Production up to the edge area with the most effective possible force distribution the surfaces and the edge is reached. Consequently, shear forces can be correspondingly considered and be compensated.

Furthermore, it is possible that a Formhal activity of the optical surfaces to be produced is guaranteed to the edge.

• – wird die Brillenglasblankhalterung derart hergestellt, daß in der Brillenglasblankhalterung zumindest ein Kanal vorhanden ist,
• – mündet der zumindest eine Kanal in der Kontaktfläche, und
• – wird mittels des zumindest einen Kanals ein Unterdruck an dem Brillenglasblank angelegt, so daß das Brillenglasblank an der Brillenglasblankhalterung fixiert ist.

For example

• The eyeglass lens holder is produced in such a way that at least one channel is present in the eyeglass lens holder,
• - Ends the at least one channel in the contact surface, and
• - By means of the at least one channel, a negative pressure is applied to the spectacle lens blank, so that the spectacle lens blank is fixed to the spectacle lens blank holder.

In In other words, the eyeglass lens holder, i. H. the blocker contain one or more channels, each in the contact area open the eyeglass lens holder. The other end of the respective channels can, for example, with a suction device, in particular a negative pressure producing Device, for example a pump, in particular a vacuum pump be connected or lead into it. Thus, the spectacle lens blank or spectacle lens similar sucked during vacuum pulling, so that the term vacuum bells can be used.

Becomes the spectacle glass blank with the contact surface against the contact surface of the Eyeglass lens holder applied or arranged at this, can due to the shape of the contact surface the lens holder and due to the shape of the contact surface of the Spectacle lens blanks by means of the mouths of channels a lower pressure is applied compared to the environment, so that Eyeglass lens blank is pressed against the eyeglass lens holder. In particular, the contact surface of the spectacle glass blank against the contact surface of the spectacle glass blank holder pressed. Thus it can be made possible in a simple and reliable way that the spectacle lens is blank effectively attached to the eyeglass lens holder becomes.

Additionally or alternatively it is possible the existence Adhesive, in particular an adhesive at the contact surface of the Eyeglass lens holder is arranged. Here, the adhesive be a double-sided adhesive tape. It is also possible that an adhesive Layer at the contact surface the eyeglass lens holder and / or at the contact surface of the Eyeglass glass blanks is arranged. For example, an adhesive brushed or sprayed on become. The adhesive may also be used unit wise in manufacture the eyeglass lens holder are arranged on the contact surface. Especially Is it possible, the existence Adhesive and one or more channels can be used, wherein the adhesive may also occlude one or more of the plurality of channels. It is also possible that the adhesive in areas of the contact area it is arranged that it none of the channels closes. Especially Is it possible, that this Adhesive with holes is equipped so that the Adhesive substantially over the complete contact area the eyeglass lens holder and / or the spectacle lens blank is, however, the areas where the channels in the contact surface of the Eyeglass lens holder open, are explicitly omitted. Therefore, a particularly advantageous efficient attachment of the spectacle lens blank to the lens holder allows become. Consequently, an efficient process can be easily and reliably performed provided for alternative blocking without heavy metal containing alloy become.

For example is a two-dimensional circumferential shape of a surface of the spectacle glass blank or of the spectacle lens on a three-dimensional dataset of the existing one Spectacle lens blanks or spectacle lenses projected and based on the dimensions of this Projection of the holding element and / or the lid member with a corresponding opening produced.

consequently can through the opening through a coating material on the exposed surface of the Eyeglass lenses are attached. For example, by means of the Lid member having no opening, an area of the spectacle lens in cooperation with the holding element substantially completed become. Due to an opening in the holding element, the other side of the spectacle lens of the coating material can be achieved, in particular a vapor be exposed to the coating material, so that the Apply coating material to this surface of the spectacle lens can.

advantageously, can thus be avoided that dome around the edges the glasses must be covered manually before the coating process. Much more Is it possible, that the Discarded glass holder after coating the lens is there for the spectacle lens or the series of spectacle lenses spectacle lens holders can be produced individually.

Consequently it is also not necessary that a manual Covering of calottes takes place.

For example is the two-dimensional circumferential shape of the surface of the spectacle lens or the spectacle glass blank a predetermined, desired circumferential shape.

In other words, the two-dimensional peripheral shape of the surface of the spectacle lens or the spectacle lens blank may be a theoretical peripheral shape. The circumferential shape can be theoretically determined or calculated, in particular zweidi be given in a dimensional way. This peripheral shape can be projected normal to the existing raw-round three-dimensional data set of the optical surface of the lens and the holding member and / or the lid member may be provided with a corresponding opening, so that a positive engagement for a stable position and sufficient tightness is achieved.

For example is the two-dimensional circumferential shape of the surface of the spectacle lens or the spectacle glass blank the produced peripheral shape.

In in other words, as the two-dimensional peripheral shape, the two-dimensional one becomes Circumferential shape of the actual, manufactured area used by a peripheral shape of an ordered spectacle lens, d. H. may deviate from the theoretical scope. Thus, a captured two-dimensionally Circumferential form normal on the existing raw-round three-dimensional Record of optical surfaces the glass is projected and the holding element adapted accordingly be provided in particular with a corresponding opening to a form fit for a stable Location and sufficient tightness to achieve.

The two-dimensional circumferential shape can in particular the two-dimensional Circumferential form of an MDM glass. The raw-round three-dimensional Record is in particular the three-dimensional record of the raw-round Spectacle lenses in which the surfaces already the final one Have surface shape, the areas but not yet bounded, d. H. the peripheral shape is not yet corresponds to the peripheral shape of the finished spectacle lens. In other In words, the eyeglass lens blank may be in the eyeglass lens holder be arranged, thereby pass into the rough-round spectacle lens and the raw round lens in the lens holder to be edited.

The Coating can be done before the raw-round spectacle lens produced by this, all already has optical properties, brought into the final circumferential shape becomes. Here, the raw-round lens in the eyeglass lens holder remain or be placed in or on a spectacle lens holder. Thus, the rough-round spectacle lens can be provided with a cover which are an opening having, which designed according to the final peripheral shape is so on the raw-round spectacle lens a coating is arranged, which essentially the final one Form of the lens already corresponds. Therefore, in optimal Way the coating material is used and it is not necessary that the raw-round spectacle lens Completely is coated. This is particularly possible because of the unit-wise production of the retaining element of the lens holder and / or the lid member of the lens holder the final shape of the spectacle lens in the holding element and / or the cover element considered In particular, a corresponding opening is provided.

Thereby, that this Spectacle lens is raw-round, d. H. for example, a circular circumference can ensure in a simple and reliable manner be that the Spectacle lens holder and in particular the retaining element and the cover element the area of the surface not to be coated Eyeglass lenses safe and reliable close against the environment and seal. In this case, for example, a small retaining edge, considered at least on the coating side of the cover become. In particular, this retaining edge can be used as a so-called clip-in system be constructed so that the Cover element arranged in a simple manner on the holding element can be and just as easily the raw-round lens can be turned.

It is possible, too, that the Eyeglass holder for one already in the final one Peripheral shape brought spectacle lens is designed. In this case can the retaining element and the cover element are adapted accordingly For example, the retaining element is merely a thin edge is that surrounds the lens and essentially only slightly to the surface to be coated, preferably does not cover.

The opening in the holding element and / or in the cover element can be chosen so that the coated surface or the coated area of the desired, theoretical circumferential shape deviates from the spectacle lens. In particular, it is possible that the area greater than the theoretical or actual area of the final Spectacle lens is. Thus, it can be ensured that the spectacle lens in any case over the entire area is coated.

According to an exemplary embodiment, after processing the spectacle glass blank in the spectacle glass blank holder, the rough-round spectacle glass can be arranged in the spectacle glass blank holder. Thus, at this time, the eyeglass lens holder can also be referred to as eyeglass lens holder. In this state, the free surface, ie the processing surface of the spectacle lens, which is opposite to a contact surface of the spectacle lens or of the spectacle lens blank, are coated. Here, due to the contact of the contact surface of the spectacle lens with the contact surface of the spectacle lens holder, which is identical in this case to the contact surface of Brilllenglasblankhalterung, coating the contact surface of the spectacle lens verhin dert, since the contact surface of the spectacle lens is substantially over the entire area, preferably over the entire surface in contact with the contact surface of the spectacle lens holder and is not exposed to the environment. A holding element and a cover element is not necessary in this case.

For example the retaining element and / or the cover element are produced automatically.

• – Herstellen einer Gießform gemäß der Herstellungsdaten des Brillenglasblanks, wobei die Gießform durch einheitenweises Anordnen zumindest eines Werkstoffes hergestellt wird, und
• – Herstellen des Brillenglasblanks mit der Gießform.

For example, the method comprises the further steps:

• Producing a casting mold in accordance with the production data of the spectacle glass blank, wherein the casting mold is produced by unit-wise arranging at least one material, and
• - Making the spectacle glass blank with the mold.

advantageously, can thus in a simple and effective way individual molds for a spectacle lens or a series of spectacle lenses be prepared, with such molds by conventional Method, for example, the so-called taping method in industrial Everyday life can not be produced. In other words, that allows Process the production of special blanks used in industrial Everyday in particular by means of taping method not made become. Such special blanks can For example, spectacle glass blanks in a particularly large thickness be that are not manufacturable by the taping process.

Method according to one aspect

• – Vorgeben von Brillenglasdaten eines Brillenglases, insbesondere Vorgeben des Brillenglases,
• – Herstellen einer Brillenglashalterung durch einheitenweises Anordnen zumindest eines Werkstoffes, derart, daß das Brillenglas zumindest bereichsweise in die Brillenglashalterung einsetzbar ist,
• – Einsetzen des Brillenglases in die Brillenglashalterung, und
• – Beschichten einer der Flächen des Brillenglases, wobei die Brillenglashalterung derart ausgebildet ist und das Brillenglas derart in der Brillenglashalterung angeordnet ist, daß die andere Fläche des Brillenglases im wesentlichen beschichtungsfrei bleibt.

One aspect of the present invention relates to a method for coating a spectacle lens with the steps:

• Specifying spectacle lens data of a spectacle lens, in particular specifying the spectacle lens,
• Producing a spectacle lens holder by arranging at least one material in units such that the spectacle lens can be inserted into the spectacle lens holder at least in regions,
• Inserting the spectacle lens into the spectacle lens holder, and
• - Coating one of the surfaces of the spectacle lens, wherein the spectacle lens holder is formed and the spectacle lens is arranged in the spectacle lens holder, that the other surface of the spectacle lens remains substantially free of coating.

in the For purposes of the present invention, the term "default" may also include Provide include. "Pretend may in particular also include that a series, a design, a series to which the spectacle lens belongs, etc. is given. "Predict" can continue include that one surface shape and / or parameters of the spectacle lens is / are provided. In particular, it may pretend that a base curve and / or a curvature and / or a full one surface shape a surface or both surfaces of the spectacle lens and by means of this information or data the lens holder is made without the lens physically provided. Thus, you can surface data in particular a base curve and / or a curvature and / or arrow heights and / or a complete surface shape a surface or both surfaces of the spectacle lens and / or other characteristic parameters of the spectacle lens considered become.

The "pretending" of the spectacle lens In particular, providing, d. H. especially the physical to disposal positions of the spectacle lens.

Especially it is also possible that a spectacle lens holder according to one predetermined lens was produced unit wise and more lenses be coated by means of the lens holder, the other Eyeglass lenses identical or similar Spectacle lens data, d. H. to a common series of Eyeglass lenses belong.

The Eyeglass lens holder is by arranging units at least made of a material, wherein the spectacle lens data such considered be that Eyeglass lens at least partially in the lens holder can be used.

The Eyeglass lens holder can be a holding element and / or a lid element include.

Method according to one aspect

• – Vorgeben von Herstellungsdaten des Brillenglasblanks oder des Brillenglases,
• – Herstellen einer Gießform gemäß den Herstellungsdaten des Brillenglasblanks oder des Brillenglases, wobei die Gießform durch einheitenweises Anordnen zumindest eines Werkstoffes hergestellt wird, und
• – Herstellen des Brillenglasblanks oder des Brillenglases mit der Gießform.

One aspect of the present invention relates to a method for producing a spectacle glass blank or a spectacle lens with the steps:

• Specification of production data of the spectacle glass blank or of the spectacle lens,
• Producing a casting mold in accordance with the production data of the spectacle-glass blank or of the spectacle lens, wherein the casting mold is produced by unit-wise arranging at least one material, and
• - Making the spectacle glass blank or the spectacle lens with the casting mold.

The Manufacturing data can in particular the dimension, the peripheral shape, arrowheads, radii of curvature, Diameter, thickness, etc. of the spectacle glass blank or the spectacle lens include.

The above embodiments preferred Aus embodiments and / or advantages apply to all aspects of the present invention, ie in particular for all methods described here.

Preferred embodiments

The following preferred embodiments apply to all aspects described above and preferred embodiments.

• – Bereitstellen eines Werkstoffverarbeitungsgerätes, und
• – einheitenweises Anordnen des zumindest einen Werkstoffes mittels des Werkstoffverarbeitungsgerätes.

For example, the method comprises the steps:

• - Providing a material processing device, and
• - Unit-wise arranging the at least one material by means of the material processing apparatus.

For example can with the material processing device several different materials to be ordered.

For example can several material processing equipment are provided and arranged different materials with different material processing equipment become.

For example is achieved by the unit-wise arranging an at least one material the at least one material applied in layers.

This applies to one or for several materials, d. H. if any of the physical Consists of one or more materials in units or unit-wise, this preferably applies to all used Materials.

in this connection the layer may comprise one or more units of the material. A unit of a material may, for. B. provided by the material processing apparatus, For example, be dosed so that a unit a predetermined Quantity or volume of the material is. A unit can, for. B. be the smallest unit of the material produced by the material processing device or can be deposited. For example, at substantially liquid or plastically deformable material, the smallest unit the smallest Amount of material dosed by the material processing device can be. For example, is the material by a laser process solidified and interconnected, can be the smallest unit essentially correspond to the volume of space in which the laser light has a predetermined energy density or in which focuses the laser light becomes.

Of the Term "generated" can in this application include that the Material is metered. The term "generated" may also include that material its chemical or physical or mechanical property changed. For example, a unit can be generated by electromagnetic Radiation is radiated into the material and in particular in the material is focused, so that the material to the unit merges. Alternatively or in addition a binder can be supplied to the material, so that the material is bound by the binder. Thus, a unit is essentially the amount of material that is bound by the binder.

to Forming the eyeglass lens holder and / or the eyeglass holder and / or the mold can a plurality of units, in particular of the smallest units be arranged together and connected to each other.

Of the Term "in layers", as he used in the context of the present application includes, for example, that materials or materials are deposited on each other. This can be a Material or material "layered" deposited be arranged by a first layer of the material and at least partially on the first layer a second layer of Material or another material is arranged. This Operation can be performed repeatedly so that one Variety of layers are arranged on each other. This is also for one Variety of materials possible. For example, you can two or more layers may be arranged substantially parallel. Two or more layers can at least partially adjacent to each other and / or each other touch. Two or more layers can also form a common situation.

Various Layers can have different dimensions. For example, a location a material essentially the smallest unit of material be produced by an appropriate device or the material processing device is.

In In other words, a situation can be, for example, a drop be formed of a material. In this sense, a location can also formed by a plurality of drops of one or more materials be that are chemically and / or mechanically connected to each other. Thus, a layer in a general description is a three-dimensional one Object, with a width, a length and a thickness. Various Layers can different widths and / or lengths and / or have thicknesses. Preferably, the thickness of various Layers should be essentially identical and the layers can become in length and / or width.

For example At least one material is a metal. For example, at least a material is a polymer. Preferably, a material comprises a polymer and another material is a polymer foreign material. For example the polymer is UV-curing Polymer.

For example For example, a material may be a polymer with which the spectacle lens blank holder and / or the spectacle lens holder and / or the mold is formed. Another Material may be, for example, a support material. The support material can for example, be arranged in places that later free of material to be, d. H. in the final product, in particular the final eyeglass lens holder and / or the final lens holder and / or the final one mold should be free of material. For example, the support material soluble, especially water-soluble his and from the finished eyeglass lens holder and / or the finished eyeglass lens holder and / or the finished casting mold do the washing up the finished spectacle glass blank holder and / or the finished spectacle lens holder and / or the finished casting mold Solvent, z. B. dissolved water become. Alternatively or in addition the additional material, d. H. the second, third, fourth, etc. Material also be a coating material, with the one or several surfaces the eyeglass lens holder and / or the eyeglass holder and / or the mold be coated. It is particularly possible that at the contact surface of the Eyeglass lens holder a layer of an adhesive unit wise is arranged.

at a use of at least two materials may be the second Material include or be a polymer foreign material. The support material may be, for example, foreign to the polymer. It is also possible with the second material, in particular a polymer-foreign material Structures, z. B. similar to engravings and / or designed as a trademark to introduce into the mold and / or channels into the eyeglass lens holder. For example, can the structure by means of the soluble support material in the surface the mold be introduced. After releasing of the soluble support material with the solvent thus depressions are introduced into the surface of the mold, which substantially identical properties such as engraving may have. One however, complicated engraving is advantageously not necessary.

Especially can Also, three or more materials are used, for example around a support material Consequently, according to one preferred embodiment the process by means of the material processing device the (UV-curing) Layered polymer, similar to an inkjet printer, however, an ink jet printer works only two-dimensionally and the material processing device works in three dimensions. An inkjet printer thus prints only one "layer" of ink, because the ink is located in the plane of the paper. Analog corresponds in an ink jet printer, a drop in this application used term unit, especially smallest unit, so that a variety of units, namely Make a layer of ink drops. According to the invention, however, a variety layers preferably substantially parallel to a support means arranged the material processing apparatus. Thus could the method also as a three-dimensional structuring method be designated. Here, the finished spectacle glass blank holder and / or the finished spectacle lens holder and / or the finished casting mold a digital three-dimensional dataset of the eyeglass lens holder to be manufactured and / or the lens holder to be manufactured and / or to finished mold getting produced. The three-dimensional dataset can be called "Baudata".

in this connection Each layer may comprise one or more materials. The thickness of each layer may preferably be predetermined by the material processing device be. In other words, it is possible that one Layer formed after solidification of the material used substantially plate-shaped is. Thus, a plurality of "plates" are stacked.

to Formation of a layer becomes at least a portion of the material processing apparatus relative to a pad or carrier plate moves, for example, a distance between the pad and the material processing apparatus or an element of the Materials processing equipment is substantially constant. Thus, a plate-shaped layer be formed, wherein the base and the material processing apparatus or a Element of the material processing device parallel to a plane, essentially by means of the length direction and the width direction the position is defined to be moved relative to each other. It is but also possible that to Forming a layer, the base and the material processing device or the Element of the material processing device along the thickness direction be moved relative to each other.

Thus, a layer may have a substantially planar surface. However, a layer may also have a non-planar surface, for example, when the substrate is moved relative to the material processing apparatus or the element of the material processing apparatus in the manufacture of the layer parallel to a thickness direction. The location can also have a curved surface or have a surface with a free form. For example, the shape of the layer may be predetermined by the shape of the base. If the base is curved, for example, the layer or the layers can also be curved.

The Thickness of the layers of the material can each be between about 10 μm and about 20 μm, more preferably about 16 microns be. Further preferably, resolutions between about 0.1 mm and about 1 mm, more preferably about 0.6 mm. Here, a manufacturing tolerance of between about 0.01 mm and about 0.2 mm, more preferably about 0.15 mm are maintained.

Of the Term "dissolution", as he used in the present application includes in particular the minimum size, with a structural element of the spectacle lens can be produced.

The Production speed can be between about 8 mm per hour per Layer at a layer thickness of about 10 microns to about 50 microns to about 30 mm per hour per layer at a layer thickness of about 10 microns to about 50 microns. The production speed can be about 12 mm per hour per layer at a layer thickness of about 16 microns be. The production speed can also be about 20 mm per Hour per layer at a layer thickness of about 30 microns amount.

Use according to one aspect

One Aspect of the present invention relates to the use at least a material processing device to perform one or more of the methods of the invention.

Manufacturing apparatus according to one aspect

One Aspect of the present invention relates to a manufacturing apparatus comprising a material processing device and an input / output device, wherein the manufacturing device is designed is to carry out one or more of the inventive method.

The manufacturing equipment may include a material processing device or in data exchange stand and an input / output device, in particular as a human-machine interface designed, include or be in data exchange. The man-machine interface In particular, a display, for example in the form of a computer monitor and an input device, such as keyboard and mouse. About the Input device can Parameter can be specified.

The product to be produced can be displayed by means of the computer monitor become. The product to be manufactured can by means of the input device changed be, d. H. the product to be manufactured can be adapted. The changed product to be produced can be displayed by means of the computer monitor become. The representation can preferably take place in real time. Furthermore, the order for producing the spectacle lens can be transmitted.

A computer program product

One Aspect of the present invention relates to a computer program, preferably stored on a storage medium or realized as A signal comprising computer-readable instructions which, when loaded into the memory of a computer and run from the computer causing that the computer performs one or more of the methods of the invention.

The The above invention is not limited to the described aspects. Much more can any individual characteristics detached combined with each other and thus further variants and / or embodiments and / or aspects of the invention are provided.

figure description

preferred Embodiment (s) The present invention will / be by means of the following figures described by way of example. It shows

1a a schematic view of a material processing apparatus at a time t ₀ ;

1b a schematic view of the tool processing device at a time t ₁ ;

1c a schematic view of the tool processing device at a time t ₂ ;

1d a schematic view of the material processing apparatus at a time t ₃ ;

1e a schematic view of the material processing apparatus;

1f a schematic view of a material processing apparatus;

1g a schematic detail view of the material processing apparatus;

2 a schematic plan view of a part of a material processing apparatus;

3 : a schematic view of a Part of a material processing device;

4 a flowchart;

5 a sectional view of a held spectacle glass blank or a held spectacle lens; and

6 a schematic sectional view of a blocker.

1a shows a simplified schematic view of the principle of a material processing apparatus 1 , The material processing device 1 includes a carrier plate 10 as well as two material dispensing units 12 . 14 , For easy description, the two material dispensing units 12 . 14 as nozzles 12 . 14 designated. The nozzles 12 . 14 are designed to output material (hatched). The material can be used both in the nozzles 12 . 14 and stored in external storage units (not shown) connected to the nozzles 12 . 14 via other devices, such as pumps, heaters, etc. are connected.

Furthermore, in 1a a material hardening unit 16 shown. The material hardening unit can be, for example, a source of electromagnetic radiation, in particular a UV lamp 16 be. Furthermore, in 1a schematically UV radiation 18 shown. In addition to the UV radiation 18 or alternatively to the UV radiation 18 can also heat radiation, particle radiation, a gas or vapor from the material hardening unit 16 be issued.

In 1a is the material processing device 1 shown at a time t ₀ .

1b shows the material processing device 1 at a time t ₁ after the time t ₀ . 1b shows a first location 20 a first material 22 on the carrier plate 10 , The first location 20 is parallel to the carrier plate 10 , Between the time t ₀ and the time t ₁ was the first material 22 by means of the nozzle 12 on the carrier plate 10 applied. By means of UV radiation 18 becomes the first material 22 hardened.

1c shows the material processing device 1 at a time 1 ₂ after the time t ₁ . As in 1c is shown, between the time t ₁ and the time t _2, a second material 24 and following the second material 24 another first material 22 on the carrier plate 10 applied. The location 20 thus comprises the first material 22 and the second material 24 , wherein the second material 24 in the first material 22 is embedded.

1d shows the material processing device 1 at a time t ₃ . In 1d is shown on the first layer 20 that the first material 22 and the second material 24 includes a second layer 26 was applied. The second location 26 as they are in 1d is shown, consists only of the first material 22 , In further steps, additional materials can be transferred to the second layer 26 be inserted. For example, may be the first material 22 the second material 24 connect. It is also possible that a plurality of further layers (not shown) are applied.

alternative or additionally can Also a variety of other materials can be used. in this connection is it possible in particular that one Variety of nozzles (not shown) are used. Alternatively or additionally, a or several (further) nozzles Apply different materials by, for example, the corresponding Fully taught nozzles and new materials are entered into the corresponding nozzles become.

1e schematically shows a further processing step. This can / can by means of a molding device 27 the first material 22 and / or the second material 24 to be edited. Preferably, in the still plastically deformable state of the first and / or the second material 22 . 24 the shape of the first and / or second material 22 . 24 at least partially to the shape of the molding device 27 be adjusted. This can be z. B., before the first and / or the second material 22 . 24 is cured, with a curing z. B. by cooling the material 22 . 24 and / or lighting the material 22 . 24 with electromagnetic radiation, etc. is possible. The mold device 27 can z. As a trackball, a cylinder, a roller, a blade, etc. be. In particular, the molding device 27 be designed, the first and / or the second material 22 . 24 to smooth at least in certain areas. The in 1e shown processing step may coincide with the placement of the first and / or the second layer 20 . 26 be performed. It is also possible that the processing step is carried out subsequently, wherein the shaping device 27 can be designed, the material 22 . 24 plastically deform. Here, the shaping device 27 be heated or secrete a chemical, It is also possible that the material 22 . 24 is at least partially softened before the molding device 27 is used. This can be z. B. by irradiation of electromagnetic radiation and / or exposure to a chemical as a liquid and / or steam.

1f shows an embodiment with a curved base, or support plate 10 , On the carrier plate 10 are two layers 20 . 26 of the first material 22 arranged. The first location 20 of the first material in this example corresponds to the Mi nimalmenge of the first material from the nozzle 12 can be separated. In other words, in this example, the first layer exists 20 from a unit of the first material 22 , The second location 26 consists in this example of two units of the first material 22 , In particular, the in 1f illustrated arrangement of the units of the first material 22 in the second position 26 be possible that the first material as a powder, liquid, fluid, gel, etc. present (not shown) and the units by introducing a liquid or by irradiation and focusing of electromagnetic radiation is generated.

It is possible that the first layer 20 by a plurality of units, for example seven units of the first material 22 is formed as in 1g shown. This may be due to material properties of the first material 22 connect the individual units to a continuous layer or in this case a layer, the z. B. has a flat surface, as has been described in the preceding figures or having an uneven surface.

It is possible, too, that the Position of the first material by focusing electromagnetic radiation, z. B. formed by focusing laser light in a medium becomes. Thus, z. B. a continuous layer can be formed, in which the focus of the electromagnetic radiation in the medium is moved without interrupting the radiation. According to this Example can Thus, in the present application, the term "in layers" and the term "unit wise" synonymous synonymous be used.

1a to 1g show exemplary possibilities, the different layers and layers of the first 22 and / or second material 24 to arrange. It is also possible that, for example, in a tank, the first material is completely liquid and by irradiation, for example, laser light, which is focused on the surface or in the interior of the liquid material to harden the liquid material or deposit as a solid, and so to manufacture the spectacle lens in layers.

It is possible, too, that the first material as a solid is present and in layers, for example by irradiation of laser light the powdery one Material is melted. This can be fixed to any position of the Material a layer of powdered Material applied and connected to the previous location and thereby the spectacle lens are produced in layers. It can too different materials are applied alternately. alternative or additionally to the laser light source can also liquids over nozzles in the powdery or liquid Material are introduced, which harden the material in layers and successively connect the layers.

When preferred method for elemental or layered manufacturing of the spectacle lens, for example, a 3D printing process, a Laser Sinteringverfahren, a stereolithography method, etc. are used.

2 shows a plan view of the carrier plate 10 without further details of the material processing apparatus 1 are shown, ie without in particular the nozzles 12 . 14 and the UV lamp 16 are shown. Rather shows 2 the first location 20 , by means of the first material 22 and the second material 24 on the carrier plate 10 was applied. The location 20 thus forms, for example, the first layer of a spectacle glass blank holder and / or a spectacle glass holder and / or a casting mold. In other words, the first location corresponds 20 a sectional view of a first layer of a spectacle lens holder and / or a lens holder and / or a mold.

3 shows a schematic view according to 2 , but where on the first material 22 a third material 32 is arranged, which is a material layer 34 forms. For example, the in 2 illustrated materials 22 . 24 each be a soluble material, the materials 22 . 24 serve as a support material and the third material 32 defines one side of the mold. The other side of the mold can also by the third material 32 be formed. This is in 3 not shown. It is also possible that the mold without the support materials, solely by arranging the third material 32 will be produced.

Alternatively, it is also possible that on the third material 32 a fourth material (not shown in FIG 2 and 3 ) is arranged, which forms the stable shell of the mold and the third material 32 represents a coating of the fourth material, so that during the manufacture of the spectacle lens, a chemical and / or mechanical connection of the spectacle lens material, which is filled in the mold, with the stable shell of the mold is prevented.

It is possible, too, that yourself the on the inside of the mold arranged coating (not shown) when filling the mold connects with the lens, so that the lens coated becomes.

It is also possible that only the material 22 is a soluble material and the material 24 remains within the mold. Thus, the finished casting mold (not shown) may have an internal layer, which in the manufacture of the spectacle lens by Filling the mold with spectacle lens material is integrated into the lens. Consequently, the second material forms 24 (across several layers) a layer of material 31 inside the mold and after filling the mold with spectacle lens material thus also in the interior of the spectacle lens (not shown). This material layer 31 For example, it may have photochromic properties and / or polarization properties and / or higher flexibility, etc. than the surrounding spectacle lens.

In particular, it is possible that due to the arrangement of the material layer 31 in the mold, the material layer 31 from the second material 24 has a precisely predetermined position in the interior of the spectacle lens. Thus, it is possible through skillful handling, divider layers, polarization layers, layers for splintering security, especially with photochromic dyes, etc. to bring exactly in a desired spatial position in the lens. It may be necessary that the mold or the corresponding construction stage of the mold with the carrier plate 10 is brought into the necessary spatial alignment by rotation and / or translation. This may alternatively or in addition to a positioning of the nozzles 12 . 14 be made.

3 shows in particular a schematic enlarged view, so that the layer 34 from the third material 32 not shown as continuous surfaces, but rather have stepped shape. It is possible that due to the high resolution during manufacture, the steps shown, which are also transmitted to the spectacle lens to be produced when filling the casting mold, are not perceived as such by the user of the spectacle lens. Furthermore, it may be possible that in one or more downstream steps, the surface (s) of the mold and / or the spectacle lens processed, in particular polished, so that a smooth surface is formed substantially without steps.

4 shows a flowchart of an exemplary sequence of an embodiment of the method according to the invention.

In In a first step S1, a material processing device is provided. Step S1 may be an initial step, i. h., that the following Steps performed repeatedly can be and the first step is performed only once.

In In a second step S2, the construction data of the spectacle glass blank holder and / or the spectacle lens holder and / or the casting mold. Providing the Baudaten the lens holder and / or the spectacle lens holder and / or the casting mold may comprise, for example, that concrete Construction data, in particular dimensions, peripheral shapes, thicknesses, etc. the spectacle lens holder and / or the spectacle lens holder and / or the mold be read from a database.

In a step S3, the eyeglass lens holder and / or the Spectacle lens holder and / or the casting mold by layer-wise application at least one material produced by the material processing apparatus.

In a step S4 can For example, one or more materials, such as a support material be washed out.

In a step S5 can the spectacle lens holder and / or the spectacle lens holder and / or the mold be reworked.

5 shows a spectacle lens blank 40 or a spectacle lens 40 , The following is the term spectacle lens 40 with regard to the description of the 5 the term spectacle lens 40 essentially with the term spectacle glass blank 40 is interchangeable.

The spectacle lens 40 has a first surface 42 on that as a coated surface 42 is shown. The spectacle lens 40 has an uncoated surface 44 on. At the coated area 42 is a layer of material 46 arranged. The spectacle lens 40 is in a spectacle lens holder 48 arranged. According to the terminology defined above, the eyeglass lens holder 48 also referred to as eyeglass lens holder, if it is a spectacle lens blank 40 is arranged or if a spectacle lens is created by processing the spectacle glass blank from the spectacle glass blank.

The spectacle lens holder 48 includes a holding element 50 and a lid member 52 , The holding element 50 is formed in the form of a profile ring, wherein the profile ring an opening 54 having. Through the opening 54 For example, a vapor or a particle beam (not shown) of the coating material may be applied to the surface 42 of the spectacle lens 40 incident. On the holding element 50 is the lid element 52 arranged. In particular, it is possible that the cover element 52 in the form of a clip-in system on the retaining element 50 is attached. The cover element 52 protects the uncoated surface 44 before the material vapor (not shown).

After coating the surface 42 can also be the uncoated area 44 be coated. For this purpose, for example, the cover element 52 be removed. It is possible that the cover element 52 also on the other side of the retaining element 50 will be arranged so that the lid lement 52 the opening 54 closes and in particular the already coated surface 42 of the spectacle lens 40 shielded from the environment, in particular seals. Thus lies the uncoated area 44 free (this is not shown). Now you can also use the uncoated surface 44 be coated. This can be repeated as often as you like. It is also possible that instead of the cover element 52 another lid member (not shown) is used, that of the coated surface 42 opposite and thus the uncoated surface 44 becomes free. The above method can be repeated so that a plurality of layers on the respective surfaces 42 and 44 can be arranged.

It is possible that the spectacle lens 40 is a rough-round spectacle lens, ie a spectacle lens that does not have the final circumferential shape. In this case, it is possible that the opening 54 essentially the shape of the final spectacle lens 40 but in projection of the three-dimensional final spectacle lens onto a two-dimensional surface, namely the surface of the aperture 54 , Thus, material vapor can pass through the opening 54 on the surface 42 hit and settle there so that the area 42 the coated area 42 becomes. By choosing the shape of the opening 54 Can the coating of the area 42 have substantially the shape of the final spectacle lens. Advantageously, thus unnecessary coating of the lens surface 42 avoided.

It is also possible that the area 54 within certain limits of the desired surface of the spectacle lens 40 deviates so that beyond the shape of the final spectacle lens, the surface 42 is coated. Thus, the spectacle lens 40 be bound in a simple manner, being sure that the area 42 of the final spectacle lens 40 completely coated. This applies analogously also for the other surface 44 ,

6 shows an exemplary blocker 56 as preferred spectacle lens blank holder. The blocker 56 has a variety of channels 58 on. In particular, the unit-wise production of the blocker allows 56 in that the channels are substantially in the desired dimensioning and positioning in the blocker 56 can be arranged. Here, the channels can be made with a material that is soluble and from the blocker 56 can be washed out. It is also possible that the channels are made by spacing the channels when making the blocker 56 remains free of material.

The channels 58 open into a contact area 60 the blocker 56 , Furthermore, the channels can be on one connection side 62 the blocker 56 to a vacuum pump (not shown). At the blocker 56 is a spectacle glass blank 40 arranged, wherein the spectacle lens blank is shown in a sectional view. A contact surface 64 of the spectacle glass blank 40 contacts the contact surface 60 the blocker 56 , In particular, the surface shape of the contact surface 64 of the spectacle glass blank 40 essentially in register with the surface shape of the contact surface 60 the blocker 56 , By means of the channels 58 A negative pressure can be generated so that the contact surface 64 of the spectacle glass blank 40 to the contact surface 60 of the blocker is pressed. It is also possible that an adhesive (not shown) at the contact surface 60 the blocker 56 and / or at the contact surface 64 the eyeglass lens holder is arranged. This adhesive may for example be gas permeable, so that by means of the negative pressure, the spectacle glass blank 40 in or on the blocker 56 can be fixed and this fixation is supported by the adhesive. For example, the adhesive may be porous. It is also possible that the adhesive has openings whose positions are substantially the positions of the openings or mouths of the channels 58 in the contact area 60 correspond.

Furthermore, the blocker has an edge 66 on. The edge 66 can in particular by the unit-wise production of the blocker 56 be formed such that the edge of the circumference of the spectacle glass blank 40 embraced essentially in registration, ie the edge 66 can be attached to the peripheral shape of the spectacle glass blank 40 be adapted or have an adapted form. Thus, the spectacle lens can be bright 40 in a simple and reliable manner in or on the blocker 56 to be ordered. In other words, blocker 56 a recording 68 have, through the contact surface 60 and the edge 66 is formed. The recording 68 can in particular to the shape of the spectacle glass blank 40 be adjusted. Advantageously, by adapting the shape of the edge 66 to the shape of the spectacle glass blank 40 achieved that the spectacle lens blank 40 even in the presence of shear forces safely in or on the blocker 56 is fixed.

1

Materials processing equipment

10

support plate

12

Material output unit / nozzle

14

Material output unit / nozzle

16

Werkstoffhärteinheit / UV lamp

18

UV radiation

20

first location

22

first material

24

second material

26

second location

27

forming device

31

Layer / material layer

32

third material

34

Layer / material layer

40

Spectacle lens blank / lens

42

coated area

44

uncoated area

46

material layer

48

Spectacle lens mounting

50

retaining element

52

cover element

54

opening

56

blocker

58

channels

60

contact area

62

connection side

64

contact area

66

edge

68

admission

Claims (22)

Method for producing a spectacle lens ( 40 ) with the steps: - Specifying area data of a surface ( 64 ) of a spectacle glass blank ( 40 ), - producing a spectacle glass blank holder ( 56 ) by unit-wise arranging at least one material, such that a Konktaktfläche ( 60 ) of the eyeglass lens holder ( 56 ) at least in regions one to the surface ( 64 ) of the spectacle glass blank ( 40 ) has adapted shape, - arranging the predetermined spectacle lens blank ( 40 ) at the contact surface ( 60 ) of the eyeglass lens holder ( 56 ), and - editing the free area of the spectacle glass blank ( 40 ), so that the free surface of the spectacle glass blank ( 40 ) corresponds to a predetermined area. Method according to claim 1, comprising the steps of: - producing a spectacle lens holder ( 48 ) by unit-wise arranging at least one material, such that the spectacle lens ( 40 ) at least partially into the lens holder ( 48 ), - insertion of the spectacle lens ( 40 ) in the spectacle lens holder ( 48 ), and - coating one of the surfaces ( 42 ) of the spectacle lens ( 40 ), whereby the spectacle lens holder ( 48 ) is formed and the spectacle lens ( 40 ) in the spectacle lens holder ( 48 ) is arranged that the other surface ( 44 ) of the spectacle lens ( 40 ) remains substantially free of coating. The method of claim 2, wherein the spectacle lens holder ( 48 ) a holding element ( 50 ) and a cover element ( 52 ), wherein the spectacle lens ( 40 ) in the retaining element ( 50 ) is arranged and the cover element ( 52 ) on the spectacle lens ( 40 ) and / or the holding element ( 50 ) is arranged, that the holding element ( 50 ) and / or the cover element ( 52 ) a predetermined area of an area ( 44 ) of the spectacle lens ( 40 ) completes the environment. Method according to claim 3, wherein the cover element ( 52 ) the predetermined area of the area ( 44 ) of the spectacle lens ( 40 ) Closes gas-tight and / or particle-tight from the environment. Method according to claim 3 or 4, wherein the predetermined area of the area ( 44 ) of the spectacle lens ( 40 ) is an area which is in operative use of the spectacle lens ( 40 ) is used optically. Method according to one of the preceding claims, wherein for the production of the spectacle glass blank holder ( 56 ) a material is used in the manufacture of the spectacle lens ( 40 ) a tool for processing the spectacle lens blanks ( 40 ) not damaged. Method according to one of the preceding claims, wherein the spectacle glass blank holder ( 56 ) is formed such that the eyeglass lens holder ( 56 ) an area ( 64 ) of the spectacle glass blank ( 40 ) completely surrounds. Method according to one of the preceding claims, wherein - the spectacle lens holder ( 56 ) is manufactured in such a way that in the eyeglass lens holder ( 56 ) at least one channel ( 58 ), - the at least one channel ( 58 ) in the contact area ( 60 ) and wherein - by means of the at least one channel ( 58 ) a negative pressure on the spectacle glass blank ( 40 ) is applied so that the spectacle lens blank ( 40 ) on the eyeglass lens holder ( 56 ) is fixed. Method according to one of the preceding claims, wherein a two-dimensional circumferential shape of a surface of the spectacle glass blank ( 40 ) or the spectacle lens ( 40 ) on a three-dimensional dataset of the existing spectacle lens blanks ( 40 ) or spectacle lenses ( 40 ) and based on the dimensions of this projection the holding element ( 50 ) and / or the cover element ( 52 ) has a corresponding opening. The method of claim 9, wherein the two-dimensional circumferential shape of the surface of the spectacle lens ( 40 ) or the spectacle glass blank ( 40 ) is a predetermined, desired circumferential shape. The method of claim 9, wherein the two-dimensional circumferential shape of the surface of the spectacle lens ( 40 ) or the spectacle glass blank ( 40 ) is the produced peripheral shape. Method according to one of the preceding claims, wherein the retaining element ( 50 ) and / or the cover element ( 52 ) automatically is / are. Method according to one of the preceding claims, with the further steps: - producing a casting mold according to the production data of the spectacle glass blank ( 40 ), wherein the casting mold is produced by unit-wise arranging at least one material, and - producing the spectacle glass blank ( 40 ) with the mold. Process for coating a spectacle lens ( 40 ) comprising the steps: - specifying spectacle lens data of a spectacle lens ( 40 ), - producing a spectacle lens holder ( 48 ) by unit-wise arranging at least one material, such that the spectacle lens ( 40 ) at least partially into the lens holder ( 48 ), - insertion of the spectacle lens ( 40 ) in the spectacle lens holder ( 48 ), and - coating one of the surfaces ( 42 ) of the spectacle lens ( 40 ), whereby the spectacle lens holder ( 48 ) is formed and the spectacle lens ( 40 ) in the spectacle lens holder ( 48 ) is arranged that the other surface ( 44 ) of the spectacle lens ( 40 ) remains substantially free of coating. Method for producing a spectacle glass blank ( 40 ) or a spectacle lens ( 40 ) comprising the steps: - specifying production data of the spectacle glass blank ( 40 ) or the spectacle lens ( 40 ), - producing a casting mold according to the production data of the spectacle glass blank ( 40 ) or the spectacle lens ( 40 ), wherein the casting mold is produced by unit-wise arranging at least one material, and - producing the spectacle glass blank ( 40 ) or the spectacle lens ( 40 ) with the mold. Method according to one of the preceding claims, comprising the steps of: providing a material processing device ( 1 ), and - unit-wise arranging the at least one material by means of the material processing apparatus ( 1 ). The method of claim 16, wherein the material processing apparatus ( 1 ) several different materials can be arranged. A method according to claim 16 or 17, wherein several material processing devices ( 1 ) and different materials with different material processing equipment ( 1 ) to be ordered. Method according to one of the preceding claims, wherein by the unit-wise arranging of the at least one material the at least one material is applied in layers. Use of at least one material processing device ( 1 ) for carrying out a method according to at least one of the preceding claims. Manufacturing device comprising a material processing device ( 1 ) and an input / output device, wherein the manufacturing device is adapted to perform a method according to at least one of the preceding claims 1 to 19. Computer program product comprising computer readable Commands which, when loaded into the memory of a computer and accomplished cause the computer Computer a method according to at least one of the preceding claims 1 to 19 executes.