GB382239A - Improvements in multi-color photography - Google Patents
Improvements in multi-color photographyInfo
- Publication number
- GB382239A GB382239A GB14267/32A GB1426732A GB382239A GB 382239 A GB382239 A GB 382239A GB 14267/32 A GB14267/32 A GB 14267/32A GB 1426732 A GB1426732 A GB 1426732A GB 382239 A GB382239 A GB 382239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- red
- green
- blackened
- blue
- faces
- 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
- 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
- G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
-
- 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
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Structure And Mechanism Of Cameras (AREA)
Abstract
382,239. Colour photography. TECHNICOLOR MOTION PICTURE CORPORATION, 110; Brookline Avenue, Boston, U.S.A.-(Assignees of Ball, J. A. ; 823, North Seward Street, Hollyvood, U.S.A.) May 19, 1932, No. 14267. Convention date, May 27, 1931. Addition to 373,429. [Classes 97 (i) and 98 (ii).] In the arrangement described in the parent Specification, a minus green filter is arranged in front of the bipack recording the blue and red colour aspects, both to obviate fogging by light reflected from the films in each aperture and also to ensure precise separation of the red aspect irrespective of variations in the red filter layer. As shown, the green and minus green filters G, MG, are applied to the prism faces 23, 21. To shield the two apertures from light reflected from the prism faces, the corners are cut away and blackened as at 24, 25 and 26, 27 ; alternatively the adjacent parts of faces 21, 23 are blackened or the margins of the mirror plane M are rendered opaque. The objective O is designed to have maximum chromatic correction and minimum focal length in the green and equal corrections for blue and red.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA382239X | 1931-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB382239A true GB382239A (en) | 1932-10-20 |
Family
ID=4171506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14267/32A Expired GB382239A (en) | 1931-05-27 | 1932-05-19 | Improvements in multi-color photography |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB382239A (en) |
-
1932
- 1932-05-19 GB GB14267/32A patent/GB382239A/en not_active Expired
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