FR1095418A - Improvements in lighting devices for cinematographic projectors and the like - Google Patents
Improvements in lighting devices for cinematographic projectors and the likeInfo
- Publication number
- FR1095418A FR1095418A FR1095418DA FR1095418A FR 1095418 A FR1095418 A FR 1095418A FR 1095418D A FR1095418D A FR 1095418DA FR 1095418 A FR1095418 A FR 1095418A
- Authority
- FR
- France
- Prior art keywords
- lighting devices
- cinematographic projectors
- cinematographic
- projectors
- lighting
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1095418T | 1953-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1095418A true FR1095418A (en) | 1955-06-02 |
Family
ID=9617540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1095418D Expired FR1095418A (en) | 1953-12-03 | 1953-12-03 | Improvements in lighting devices for cinematographic projectors and the like |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1095418A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3078760A (en) * | 1958-11-03 | 1963-02-26 | Dietzgen Co Eugene | Optical projection system |
EP0417039A1 (en) * | 1989-09-04 | 1991-03-13 | GRETAG Aktiengesellschaft | Illumination device for projection means |
US5320062A (en) * | 1991-12-11 | 1994-06-14 | Yazaki Corporation | Illuminated slit pointer device for vehicle instrument |
DE10235389A1 (en) * | 2002-08-02 | 2004-02-19 | Carl Zeiss Jena Gmbh | Field illumination device for projection system has parabolic reflector enclosing light source and counter-reflector lying along common optical axis with its primary focus at secondary focus of parabolic reflector |
-
1953
- 1953-12-03 FR FR1095418D patent/FR1095418A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3078760A (en) * | 1958-11-03 | 1963-02-26 | Dietzgen Co Eugene | Optical projection system |
EP0417039A1 (en) * | 1989-09-04 | 1991-03-13 | GRETAG Aktiengesellschaft | Illumination device for projection means |
US5320062A (en) * | 1991-12-11 | 1994-06-14 | Yazaki Corporation | Illuminated slit pointer device for vehicle instrument |
DE10235389A1 (en) * | 2002-08-02 | 2004-02-19 | Carl Zeiss Jena Gmbh | Field illumination device for projection system has parabolic reflector enclosing light source and counter-reflector lying along common optical axis with its primary focus at secondary focus of parabolic reflector |
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