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WO2015008579A1 - Procédé de fabrication d'une lentille en réseau, lentille en réseau et unité de lentille en réseau - Google Patents

Procédé de fabrication d'une lentille en réseau, lentille en réseau et unité de lentille en réseau Download PDF

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Publication number
WO2015008579A1
WO2015008579A1 PCT/JP2014/066475 JP2014066475W WO2015008579A1 WO 2015008579 A1 WO2015008579 A1 WO 2015008579A1 JP 2014066475 W JP2014066475 W JP 2014066475W WO 2015008579 A1 WO2015008579 A1 WO 2015008579A1
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WO
WIPO (PCT)
Prior art keywords
array lens
array
lens
temperature
optical axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/066475
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English (en)
Japanese (ja)
Inventor
原明子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP2015527230A priority Critical patent/JPWO2015008579A1/ja
Priority to CN201480040418.3A priority patent/CN105392617A/zh
Publication of WO2015008579A1 publication Critical patent/WO2015008579A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0085—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing wafer level optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B29C2071/022—Annealing

Definitions

  • the present invention relates to a resin array lens manufacturing method, an array lens, and an array lens unit, which have a plurality of lens elements arranged in a direction orthogonal to the optical axis, and are particularly incorporated in an imaging device or the like.
  • the optical system called compound-eye optical system, which performs final image output by dividing the area of the image sensor and arranging the optical system in each area and processing the resulting image in combination, is made thinner Attention has been paid to meet the demands for the above, and various compound eye optical systems have been proposed so far.
  • the temperature of the sensor of the image pickup device rises.
  • the pitch variation between the lenses hardly occurs even when the temperature changes.
  • the array lens is made of resin, when the temperature changes, a pitch variation between the lenses occurs due to linear expansion.
  • the temperature change temperature increase / decrease
  • the amount of pitch fluctuation at each temperature is always the same, even if the temperature rises by continuing to use the camera, each individual pixel on the desired pixel Lens displacement can be easily corrected by image processing, and processing such as super-resolution becomes easy.
  • pitch fluctuations due to temperature changes are not the same. For example, even if the temperature is the same, if the position between individual lenses changes between when the temperature rises and when the temperature falls, this pitch fluctuation. As a result, processing such as super-resolution may become complicated and problems may occur.
  • the present invention relates to an array lens manufacturing method, an array lens, and an array lens in which the pitch variation between the lens elements in the direction orthogonal to the optical axis with respect to the temperature change is substantially the same with respect to the temperature change, and hysteresis related to expansion and contraction is substantially eliminated.
  • the purpose is to provide units.
  • the array lens manufacturing method includes a plurality of lens elements that are two-dimensionally arranged in a direction orthogonal to the optical axis and a support that connects the plurality of lens elements.
  • the heat treatment is performed under the above conditions, whereby the molding distortion of the array lens is reduced or eliminated by releasing the stress.
  • the pitch variation in the direction perpendicular to the optical axis between the lens elements with respect to the temperature change becomes substantially the same at each temperature, and an array lens in which hysteresis related to expansion and contraction is substantially eliminated can be obtained.
  • the hysteresis related to expansion and contraction refers to a phenomenon in which the relative positions of the individual lens elements shift at the same temperature when the temperature rises and when the temperature falls.
  • the present invention has found a problem peculiar to an array lens in which the distance between the optical axes of a plurality of lens elements arranged two-dimensionally in a direction orthogonal to the optical axis expands and contracts according to the environmental temperature. It is a thing. More specifically, due to the structure of the array lens, if the thickness in the optical axis direction is t, at least one of the vertical dimension and the horizontal dimension in the direction perpendicular to the optical axis is often 10t to 30t, depending on the environmental temperature. The amount of change is much larger in the direction perpendicular to the optical axis than in the optical axis direction.
  • the array lens of the present invention when used as an imaging system lens, it can be corrected by image processing even if the resin is slightly deteriorated and yellowed due to overheating to reduce distortion.
  • the degree of freedom of heating conditions can be increased.
  • Tg ⁇ 65 ° C. or higher the effect of eliminating hysteresis by heating can be secured.
  • Tg ⁇ 10 ° C. or less the resin does not melt and the molded surface shape can be maintained.
  • the effect of an annealing process can be made sufficient by making the said heating into 24 hours or more, and yellowing can be suppressed by making it into 168 hours or less.
  • Tg said by this application is a glass transition temperature, and means the value measured with the temperature increase rate of 10 degrees C / min by the differential scanning calorimetry based on the measuring method JISK7121.
  • FIG. 1A is a cross-sectional view of an imaging apparatus including an array lens according to an embodiment
  • FIG. 1B is a plan view of the array lens shown in FIG. 1A
  • 2A and 2B are conceptual sectional views of a molding die for molding an array lens.
  • 3A to 3E are diagrams for explaining the manufacturing process of the array lens. It is a conceptual diagram explaining the heating apparatus used for the heat treatment process among the manufacturing processes of an array lens. It is a figure explaining the Example of an array lens. It is a figure explaining the comparative example with respect to the array lens of an Example.
  • the stacked array lens unit 100 is incorporated in the imaging apparatus 1000.
  • the illustrated laminated array lens unit 100 is a laminated body in which a plurality (specifically, two) of array lenses 10 and 20 are stacked, and is used as a compound eye optical system.
  • the first and second array lenses 10 and 20 are square plate-like members extending in parallel to the XY plane, and are stacked in the Z-axis direction perpendicular to the XY plane and joined to each other.
  • the imaging apparatus 1000 includes a sensor array 60 having a plurality of detection units (sensor elements) 61 provided corresponding to the individual composite lenses 1a constituting the array lens unit 100. And an image processing unit 65 that performs image processing conforming to the visual field division method or the super-resolution method on the image signals detected by the sensor array 60.
  • the array lens unit 100 is housed in a rectangular frame-like case 50 joined to the sensor array 60.
  • the first array lens 10 on the object side is an integrally molded product made of resin and has a rectangular (substantially square in the illustrated example) outline when viewed from the central axis AX direction or the Z-axis direction.
  • the first array lens 10 includes a plurality of lens elements 10a, each of which is an optical element, and a support portion 10b that connects the plurality of lens elements 10a.
  • the plurality of lens elements 10a constituting the first array lens 10 are two-dimensionally arranged on square lattice points (16 ⁇ 4 ⁇ 4 in the illustrated example) arranged in parallel to the XY plane.
  • Each lens element 10a has a first optical surface 11a that is convex on the first main surface 10p on the object side, and a second optical surface 11b that is concave on the second main surface 10q on the object side. Both optical surfaces 11a and 11b are aspherical surfaces, for example.
  • the support portion 10b is a flat plate-like portion, and includes a plurality of peripheral portions 10c so as to surround each lens element 10a.
  • the second array lens 20 on the image side is an integrally molded product made of resin and has a rectangular (substantially square in the illustrated example) outline when viewed from the central axis AX direction.
  • the second array lens 20 includes a plurality of lens elements 20a, each of which is an optical element, and a support portion 20b that connects the plurality of lens elements 20a.
  • the plurality of lens elements 20a are two-dimensionally arranged on square lattice points (16 ⁇ 4 ⁇ 4 in the illustrated example) arranged in parallel to the XY plane.
  • Each lens element 20a has a first optical surface 21a that is concave on the first main surface 20p on the object side, and a second optical surface 21b that is convex on the second main surface 20q on the image side. Both optical surfaces 21a and 21b are aspherical surfaces, for example.
  • the support portion 20b is a flat plate-like portion and includes a plurality of peripheral portions 20c so as to surround each lens element 20a.
  • the first and second array lenses 10 and 20 are aligned and bonded or bonded to each other with an adhesive such as a photo-curable resin.
  • an array lens unit 100 including a large number of synthetic lenses 1a arranged two-dimensionally in a matrix is obtained.
  • the optical axis OA of each synthetic lens 1a is parallel to the entire central axis AX.
  • the plurality of synthetic lenses 1a arranged two-dimensionally on the lattice points corresponds to a single-eye lens of a field division method or a super-resolution method.
  • the field division method means that images of different fields of view formed by the respective composite lenses 1a, which are individual compound optical systems, are joined together by image processing (specifically, digital data processing). This is a method for obtaining one image.
  • the super-resolution method is a method of obtaining one high-resolution image by image processing from images of the same field of view formed by the respective composite lenses 1a that are individual compound optical systems.
  • the first and second array lenses 10 and 20 are heat-treated at a temperature of Tg ⁇ 65 ° C. or higher and Tg ⁇ 10 ° C. or lower for 24 hours or longer and 168 hours or shorter after molding, where the glass transition temperature of the resin is Tg. Has been given. As a result, the first and second array lenses 10 and 20 are substantially free from hysteresis related to expansion and contraction with respect to the distance d between the optical axes OA of the lens elements 10a and 20a.
  • the heat treatment is performed on the optical axes OA for two pairs of lens elements 10a that are farthest apart from each other with respect to different reference directions (in the present embodiment, the X-axis direction and the Y-axis direction) among the lens elements 10a constituting the array lens 10.
  • the distances d1 and d2 for example, unit mm
  • the hysteresis of the temperature fluctuation with respect to the diagonal direction are substantially eliminated.
  • the array lens unit 100 is subject to calibration for image processing when the camera is used because the pitch between the optical axes varies due to temperature rise.
  • the focus calculated based on the in-focus position extracted from the images close to the focus extracted from the plurality of image signals, the defocus amount, and the like.
  • the amount of difference from the focal position is calculated, and correction information unique to the array lens unit 100 is obtained.
  • correction information unique to the array lens unit 100 is obtained by calibration.
  • An incident aperture plate 45 fixed by adhesion to the case 50 or the like is disposed on the object side of the case 50 that houses the array lens unit 100. Although a detailed description is omitted in the case 50 and the entrance diaphragm plate 45, a large number of openings are formed corresponding to the lens elements 10a and the like.
  • a thin light-shielding diaphragm plate may be provided between the first array lens 10 and the second array lens 20 or on the image side of the second array lens 20.
  • the manufacturing process of the array lens unit 100 includes a molding process, a heat treatment process, a coating process, and a lamination process.
  • the first and second array lenses 10 and 20 are molded.
  • the first array lens 10 and the like are formed by injection molding.
  • FIG. 2A is a diagram for explaining a mold for molding the first array lens 10.
  • the mold apparatus 70 includes a first mold 71 and a second mold 72.
  • the first mold 71 and the second mold 72 are mold-matched at the mold-matching surface PL, and a cavity 70 a is formed between the molds 71 and 72.
  • a transfer surface 71c for transferring the shape of the first array lens 10 on the first main surface 10p side is formed on the first mold 71 so as to face the cavity 70a, and the second mold 72 has a second mold 72.
  • a transfer surface 72c for transferring the shape of the first array lens 10 on the second main surface 10q side is formed.
  • the transfer surfaces 71c and 72c have a plurality of optical transfer portions 71g and 72g arranged two-dimensionally at a part thereof in order to transfer the optical surfaces 11a and 11b of the lens element 10a.
  • the mold part 71i forming the transfer surface 71c is integrally formed
  • the mold part 72i forming the transfer surface 72c is formed integrally.
  • a gate GA communicating with the cavity 70a is formed in the mold apparatus 70.
  • the gate GA is disposed not on the center of the transfer surfaces 71c and 72c but on the side, and injection molding is performed by a side gate method.
  • FIG. 2B is a conceptual cross-sectional view illustrating the overall structure of the mold apparatus 70.
  • the runner RA is connected to the cavity 70a of FIG. 2B through the gate GA, and the runner RA is connected to the sprue SP on the resin supply side.
  • the molten resin J from the sprue SP obtained by melting the thermoplastic resin fills the runner RA and fills the cavity 70a through the gate GA.
  • a molded product 80 including the portion 83 and the array lens body 84 corresponding to the cavity 70a is formed.
  • the gate section 83 is subjected to gate cut processing, and the first array lens 10 is obtained by the array lens body 84 at the tip of the gate section 83.
  • the second array lens 20 is also molded by the same method as the first array lens 10. That is, the second array lens 20 is also manufactured by injection molding a thermoplastic resin by a side gate method.
  • Heat treatment process (annealing process)
  • heat treatment is performed on the first array lens 10 in the heat treatment step.
  • the first array lens 10 is subjected to heat treatment using a thermostatic bath M1 or the like.
  • the heating condition is that the temperature is Tg ⁇ 65 ° C. or higher and Tg ⁇ 10 ° C. or lower and is 24 hours or longer and 168 hours or shorter when the glass transition temperature of the resin that is the material of the first array lens 10 is Tg.
  • the heat treatment is more preferably Tg ⁇ 65 ° C. or higher and Tg ⁇ 10 ° C. or lower for 48 hours or longer and 168 hours or shorter. As shown in FIG.
  • the thermostatic chamber M ⁇ b> 1 includes a heating chamber 91 having a heat insulating wall, a pair of heaters 92 that raise the temperature in the heating chamber 91, a temperature sensor 93 that measures the temperature in the heating chamber 91, and a heating A decompression device 94 that decompresses the inside of the chamber 91 and a control device 95 that controls the operation of each unit 92, 93, 94 are provided.
  • the control device 95 operates the heater 92 while monitoring the output of the temperature sensor 93 to maintain the inside of the heating chamber 91 at a predetermined temperature between Tg ⁇ 65 ° C. and Tg ⁇ 10 ° C.
  • the first array lens 10 is placed on a shelf 91a in the heating chamber 91, and is subjected to heat treatment (annealing treatment) under the above conditions.
  • heat treatment annealing treatment
  • the inside of the heating chamber 91 is decompressed by the decompression device 94, it is a kind of vacuum container.
  • the hysteresis related to expansion and contraction is substantially eliminated with respect to the interval between the optical axes OA of the lens elements 10a. This is because molding distortion due to flow of the chain resin composition, molding distortion due to residual stress due to curing shrinkage, and the like are released by heating.
  • the heating conditions in the heat treatment step can be different depending on the type of resin, and are appropriately selected from the above condition range so as to obtain a hysteresis elimination effect by heating.
  • the second array lens 20 is also heat-treated by the same method as the first array lens 10, whereby the hysteresis related to expansion and contraction with respect to the interval between the optical axes OA of the lens elements 20a is substantially eliminated.
  • the light of each lens element 10a of the first array lens 10 is eliminated by eliminating the hysteresis of both the first array lens 10 and the second array lens 20.
  • the axis OA and the optical axis OA of each lens element 20a of the second array lens 20 are displaced in substantially the same manner when the temperature changes, and the mutual eccentricity of each lens element 10a and each lens element 20a can be suppressed, and the optical performance can be suppressed. Deterioration can be suppressed.
  • the two array lenses are made of the same material having the same optical characteristics. In this case, mutual eccentricity can be prevented.
  • the heat treatment step is preferably performed after the molding step and before other processing (in the present embodiment, before the coating step). Thereby, it is possible to prevent the pitch fluctuation from affecting other processing.
  • the maximum optical axis distance between the lens elements is Lmax, and the maximum optical axis at the same temperature when the temperature rises and falls
  • the difference in distance is ⁇
  • the difference in distance is ⁇
  • the linear expansion coefficient is about 2.4 ⁇ 10 ⁇ 6 [K ⁇ 1 ].
  • a coating such as an antireflection film is applied to the surface of the first array lens 10. Specifically, as shown in FIG. 3B, a single-layer or multilayer thin film is formed on the surface of the first array lens 10 using a vapor deposition apparatus M2 or the like. Thereby, an antireflection effect is imparted to the optical surfaces 11 a and 11 b of the first array lens 10.
  • the second array lens 20 is also coated by the same method as the first array lens 10.
  • the molded first and second array lenses 10 and 20 are laminated.
  • the second array lens 20 is positioned and stacked above the first array lens 10.
  • an adhesive B such as a photocurable resin is applied in advance on the support portion 10b of the first array lens 10
  • the first array lens is applied. 10 are stacked by aligning and overlapping with the second array lens 20.
  • the adhesive is cured by irradiating the first array lens 10 or the second array lens 20 with ultraviolet rays.
  • the array lens unit 100 fixed in a state where the first and second array lenses 10 and 20 are laminated is obtained.
  • the array lens unit 100 and the sensor array 60 shown in FIG. 1A and the like are housed in a case 50, and an imaging device 1000 is obtained.
  • the adhesive B is not applied on the first array lens 10 before the first and second array lenses 10 and 20 are stacked, but after the first and second array lenses 10 and 20 are stacked.
  • An adhesive may be applied.
  • an adhesive may be applied to the second array lens 20 side.
  • the array lens unit 100 is housed in the case 50 after the first and second array lenses 10 and 20 are stacked. However, the first and second array lenses 10 and 20 are individually positioned and housed in the case 50. Thereafter, the imaging apparatus 1000 may be assembled by bonding.
  • the heat treatment is performed under the above conditions, so that the molding distortion of the first and second array lenses 10 and 20 and the array lens unit 100 is relieved or eliminated by releasing the stress.
  • the pitch variation in the direction perpendicular to the optical axis between the lens elements 10a and 20a with respect to the temperature change becomes substantially the same at each temperature, and an array lens and an array lens unit in which hysteresis related to expansion and contraction is substantially eliminated can be obtained.
  • the deviation amount of the individual lens elements 10a and 20a from the desired pixel becomes stable and can be easily corrected by image processing, super-resolution, etc. Can be processed.
  • the array lens unit 100 Since the array lens unit 100 is used as an imaging system lens, it can be corrected by image processing even if the resin is excessively heated to reduce distortion and the resin is slightly deteriorated and yellowed, so that the heating condition is higher than that of the optical pickup system lens.
  • the degree of freedom can be increased.
  • the heating temperature By setting the heating temperature to Tg ⁇ 65 ° C. or higher, the effect of eliminating hysteresis by heating can be secured. Further, by setting the heating temperature to Tg ⁇ 10 ° C. or less, the resin does not melt and the molded surface shape can be maintained.
  • APL5514ML made by Mitsui Chemical Co., Ltd.
  • ZEONEX E48R made by Nippon Zeon Co., Ltd.
  • a disk-shaped flat plate having a diameter of 11 mm and a thickness of 3 mm is prepared by injection molding.
  • heat treatment was performed with various heating temperatures and heating times as shown in Table 1 below. Thereafter, heating and cooling were performed at a temperature of 25 ° C. to 90 ° C. at 0.5 ° C./min as one cycle, and two cycles (first cycle and second cycle) were repeated.
  • FIG. 5 shows the change in linear expansion of the sample after the heat treatment process.
  • the horizontal axis indicates the temperature of the sample
  • the vertical axis indicates the displacement in the thickness direction of the sample.
  • the amount of variation in the temperature change of the sample was substantially the same, and the linear expansion coefficient (ppm) was substantially the same. That is, it can be seen that the hysteresis in the temperature change is substantially eliminated.
  • FIG. 6 shows the change in linear expansion of the sample that was not subjected to the heat treatment step.
  • the array lens according to the present embodiment has been described above, but the array lens according to the present invention is not limited to the above.
  • the shapes and sizes of the first and second optical surfaces 11a, 11b, 21a, and 21b can be appropriately changed according to applications and functions.
  • the outer shape of the first and second array lenses 10 and 20 is a quadrangle, it may be other shapes such as a circle.
  • the 1st and 2nd array lens 10 and 20 was formed using the thermoplastic resin, even if it forms using other resin materials, such as a thermosetting resin and a photocurable resin. Good.
  • the first and second array lenses 10 and 20 are molded by injection molding, but may be molded by other molding methods such as molding or press molding.
  • the coating process is performed after the heat treatment process, but the coating process may not be performed. Moreover, you may perform another process instead of a coating process.
  • the heat treatment step is performed before the first and second array lenses 10 and 20 are bonded.
  • the heat treatment step may be performed after the bonding.
  • two array lenses are stacked.
  • only one single layer may be used without stacking.
  • three or more array lenses may be laminated.
  • the decompression device 94 is provided in the thermostatic chamber M1, but the decompression device 94 may not be provided.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une lentille en réseau pour lequel la variation du pas entre les éléments de lentille liée aux changements de température est sensiblement la même pour des changements de température répétés et l'hystérésis associée à la dilatation et à la contraction a été sensiblement résolu. Le procédé de fabrication d'une lentille en réseau comprend : un procédé de formage pour la formation, en une seule pièce, de lentilles en réseau (10, 20), dans lequel de multiples éléments de lentille (10a, 20a) agencés de manière bidimensionnelle dans les directions orthogonales par rapport à un axe optique (AO) et des sections support (10b, 20b) reliant les multiples éléments de lentille (10a, 20a) sont formés à partir de résine; et un procédé de traitement thermique pour réaliser, après le procédé de formage, un traitement thermique sur les lentilles en réseau (10, 20) à une température de (Tg)-65°C à (Tg)-10°C pendant 24 à 168 heures, (Tg) étant la température de transition vitreuse.
PCT/JP2014/066475 2013-07-18 2014-06-20 Procédé de fabrication d'une lentille en réseau, lentille en réseau et unité de lentille en réseau Ceased WO2015008579A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015527230A JPWO2015008579A1 (ja) 2013-07-18 2014-06-20 アレイレンズの製造方法、アレイレンズ及びアレイレンズユニット
CN201480040418.3A CN105392617A (zh) 2013-07-18 2014-06-20 阵列透镜的制造方法、阵列透镜以及阵列透镜单元

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JP2013-149928 2013-07-18
JP2013149928 2013-07-18

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WO2015008579A1 true WO2015008579A1 (fr) 2015-01-22

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JP2022148444A (ja) * 2021-03-24 2022-10-06 日本光電工業株式会社 ガス計測用アダプタおよび窓ユニットを製造する方法

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JP6664347B2 (ja) * 2017-03-31 2020-03-13 富士フイルム株式会社 レンズの製造方法
JP7616222B2 (ja) * 2020-07-17 2025-01-17 ソニーグループ株式会社 内視鏡システム、内視鏡制御方法、およびプログラム

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