DE655600C - Optical system for multicolor image projection - Google Patents
Optical system for multicolor image projectionInfo
- Publication number
- DE655600C DE655600C DEC49410D DEC0049410D DE655600C DE 655600 C DE655600 C DE 655600C DE C49410 D DEC49410 D DE C49410D DE C0049410 D DEC0049410 D DE C0049410D DE 655600 C DE655600 C DE 655600C
- Authority
- DE
- Germany
- Prior art keywords
- optical system
- image projection
- multicolor image
- roof
- prism
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title claims description 9
- 241001212149 Cathetus Species 0.000 description 4
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/123—The splitting element being a lens or a system of lenses, including arrays and surfaces with refractive power
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Optisches System,Mehrfarbenbildwurf Es sind optische Systeme für Mehrfarbenbildwurf bekannt, welche zwei optische Vorrichtungen besitzen, deren jede beiderseits eines mittleren rechtwinkligen Prismas je ein rriit einer Kathetenfläche auf einer der Kathetenflächen des mittleren Prismas angekittetes rechtwinkliges Prisma aufweist, während die freien Kathetenflächen der beiden Endprismen senkrecht zur Projektionsrichtung beiderseits der Symmetrieebene des mittleren Prismas liegen, welche ebenfalls senkrecht zur Projektionsrichtung liegt. Dieses optische System ,erlaubt die gleichzeitige Projektion von zwei Bildern, die um go° gedreht und so voneinander getrennt werden, daß mit Objektiven großer relativer Öffnung projiziert werden kann.Optical system, multi-color image projection They are optical systems for multi-color image projection known which have two optical devices, each of which has one on both sides middle right-angled prism one rriit of a cathetus surface on one of the Has the cathetus surfaces of the middle prism cemented right-angled prism, while the free cathetus surfaces of the two end prisms are perpendicular to the direction of projection on both sides of the plane of symmetry of the central prism, which are also perpendicular to the direction of projection. This optical system allows simultaneous Projection of two images that are rotated by go ° and separated from each other that can be projected with lenses with a large relative aperture.
Zur Durchführung des Vierfarbenbildwurfs, bei dem sämtliche Einzelbilder auf dem Film o. dgl. eine solche Lagre haben, daß sie gleichzeitig um 9o° gedreht und voneinander getrennt werden müssen, sind gemäß der Erfindung vier gleichartige optische Vorrichtungen vorgesehen, deren je zwei rechtwinklige Endprismen mit einem mittleren Dachkantprisma verkittet sind, dessen durch den Grat des Daches 'führende Symmetrieebene senkrecht zur Projektvonse#»richtung liegt.To carry out the four-color picture throw, in which all individual pictures have such a lag on the film or the like that they are rotated by 90 ° at the same time and must be separated from each other, are four similar according to the invention optical devices are provided, each of which has two right-angled end prisms with one middle roof prism are cemented, whose leading through the ridge of the roof ' The plane of symmetry is perpendicular to the project direction.
In der Zeichnung ist eine Ausführungsform des Erfindungsgegenstandes vieranschaulicht.In the drawing is an embodiment of the subject matter of the invention four illustrates.
Fig. i zeigt schematisch in der Draufsicht das Gesamtsystem mit einem Film, auf dem die Einzelbilder paarweise nebeneinander angeordnet sind.Fig. I shows schematically in plan view the entire system with a Film on which the individual images are arranged side by side in pairs.
Fig. 2 und 3 zeigten Seitenansichten, Fig.4 einen Querschnitt eines. der Dachprismen nach A-B Fig. i.FIGS. 2 and 3 show side views, FIG. 4 shows a cross section of a. the roof prisms according to A-B Fig. i.
In Fig. i ist mit i eines der gleichschenkligen Dachkantprismen bezeichnet, dessen Dach durch die beiden Flächen ia und ib (Fig.4) gebildet wird. An zwei rechtwinklig zueinander stehende Endflächen ic und id- dies Dachkantprismas sind gewöhnliche rechtwinklige Prismen 2 und 3 mit je einer Kathetenfläche angekittet. Die freien Kathetenflächen 2a und 3a dieser beiden Prismen sind parallel. zu der durch die Dachkante laufenden Symmetrieebene des Dachkantprismas angeordnet, und zwar die eine diesseits, die andere jenseits. von ihr. Diese Symmetrieebeale liegt also senkrecht zur Projektionsrichtung.In Fig. I, i denotes one of the isosceles roof prisms, whose roof is formed by the two surfaces ia and ib (Fig. 4). At two right angles End faces ic and id that stand to one another - this roof prism are common right-angled prisms 2 and 3 cemented each with a cathetus surface. The free Cathet surfaces 2a and 3a of these two prisms are parallel. to the by the Arranged roof edge running symmetry plane of the roof prism, namely the one on this side, the other on the other. of her. This plane of symmetry is therefore perpendicular to the direction of projection.
Die vier Prismensysteme sind so angeordnet, daß diejenigen total reflektierenden Endprismen, die den zu projizierenden Bildern 4a, 4b, 4.e, 4d nicht gegenüberstehen, nach außen in der Richtung der Diagonalen des Fechtecks, welches durch .diese vier Bilder gebildet wird, gelegen sind. Die Objektive 5a, 5b, 5a, 5d werden auf diesle Weise ungefähr gleich weit auseinandergelegt. Die vier in den Kathetenfläcben 3a der äußeren total reflektierenden. rechtwinkligen Prismen dargestellten Bilder zeigen die Stellungen der Einzelbilder 4a, 4b, 4c, 4d nachdem Durchgang durch die optischen Prism.ensy steine.The four prism systems are arranged in such a way that those totally reflecting end prisms, which are not opposite the projected images 4a, 4b, 4.e, 4d , are located outward in the direction of the diagonal of the fencing which is formed by these four images are. The objectives 5a, 5b, 5a, 5d are spaced apart in this way approximately equally. The four in the Kathetenfläcben 3a of the outer totally reflective. Pictures shown in right-angled prisms show the positions of the individual images 4a, 4b, 4c, 4d after they have passed through the optical Prism.ensy stones.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC49410D DE655600C (en) | Optical system for multicolor image projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC49410D DE655600C (en) | Optical system for multicolor image projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE655600C true DE655600C (en) | 1938-01-19 |
Family
ID=7026958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC49410D Expired DE655600C (en) | Optical system for multicolor image projection |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE655600C (en) |
-
0
- DE DEC49410D patent/DE655600C/en not_active Expired
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