DE517663C - Projection optics for color cinematography - Google Patents
Projection optics for color cinematographyInfo
- Publication number
- DE517663C DE517663C DEF68394D DEF0068394D DE517663C DE 517663 C DE517663 C DE 517663C DE F68394 D DEF68394 D DE F68394D DE F0068394 D DEF0068394 D DE F0068394D DE 517663 C DE517663 C DE 517663C
- Authority
- DE
- Germany
- Prior art keywords
- lenses
- projection optics
- color cinematography
- parallel
- film
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
Projektionsoptik für Farbenkinematographie Die 1,-,rfindtuig bezieht sieh auf eine Projektionsvorriclitung für Farbenkinematographie mit drei Objektiven, die in einer parallel zur Bewegungsrichtung des Films iier;enden Richtung angeordnet sind.Projection optics for color cinematography The 1, -, rfindtuig relates see a projection device for color cinematography with three lenses, arranged in a direction parallel to the moving direction of the film are.
Es ist bekannt, den Abstand der beiden äußeren Objektive vom mittleren dadurch zu verändern, daß die Fassungen der äußeren Objektive um Zapfen ausschwingen, die par-<illel zur Projektionsrichtung liegen.It is known the distance between the two outer lenses and the middle one to be changed by the fact that the mounts of the outer lenses swing out around pegs, the par- <illel to the direction of projection.
Bei diesen bekannten Vorrichtungen sind die Schwingzapfen in einem Abstand voneinander angeordnet, der sehr viel größer ist als der zwischen den optischen Mitten dieser beiden äußeren Objektive. Hieraus ergibt sich der Nachteil, daß die optischen Mitten der äußeren Objektive bei ihrem Ausschwingen wesentlich von der Bewegungsrichtung des Films abweichen.In these known devices, the pivot pins are in one Spaced apart, which is much greater than that between the optical In the middle of these two outer lenses. This has the disadvantage that the optical centers of the outer lenses when they swing out significantly from the Direction of movement of the film differ.
Um diesem Übelstand abzuhelfen, wird erfindungsgemäß der Abstand der Schwingzapfen in der Richtung parallel zur Bewegungsrichtung des Films gleich demjenigen zwischen den .optischen Mitten der äußeren Objektive gemacht, wenn sich diese in ihrer Mittellage befinden.In order to remedy this drawback, according to the invention the distance is the Swing pin in the direction parallel to the direction of movement of the film is the same as that between the .optical centers of the outer lenses, when these are in their central position.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE517663X | 1928-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE517663C true DE517663C (en) | 1931-02-06 |
Family
ID=3871255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF68394D Expired DE517663C (en) | 1928-05-16 | 1929-05-16 | Projection optics for color cinematography |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE517663C (en) |
-
1929
- 1929-05-16 DE DEF68394D patent/DE517663C/en not_active Expired
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