FR842044A - Appareil de projection pour vues fixes - Google Patents
Appareil de projection pour vues fixesInfo
- Publication number
- FR842044A FR842044A FR842044DA FR842044A FR 842044 A FR842044 A FR 842044A FR 842044D A FR842044D A FR 842044DA FR 842044 A FR842044 A FR 842044A
- Authority
- FR
- France
- Prior art keywords
- projection device
- still views
- views
- still
- projection
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- 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
- G03B21/145—Housing details, e.g. position adjustments thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US159144A US2169010A (en) | 1937-08-14 | 1937-08-14 | Still projector |
Publications (1)
Publication Number | Publication Date |
---|---|
FR842044A true FR842044A (fr) | 1939-06-05 |
Family
ID=22571262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR842044D Expired FR842044A (fr) | 1937-08-14 | 1938-08-12 | Appareil de projection pour vues fixes |
Country Status (3)
Country | Link |
---|---|
US (1) | US2169010A (fr) |
FR (1) | FR842044A (fr) |
GB (1) | GB507456A (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734421A (en) * | 1956-02-14 | Film projector | ||
US2506169A (en) * | 1946-07-10 | 1950-05-02 | Viewlex Inc | Illumination system for projectors |
US2456711A (en) * | 1947-03-14 | 1948-12-21 | Bell & Howell Co | Adjustable condenser lens for projection systems |
US2614458A (en) * | 1948-10-23 | 1952-10-21 | American Optical Corp | Film projector housing construction |
US2777357A (en) * | 1949-11-07 | 1957-01-15 | Ernest W Goldberg | Case and base structure combination for picture projectors |
US2727430A (en) * | 1949-11-07 | 1955-12-20 | Ernest W Goldberg | Lens mount for projectors and the like |
US2600975A (en) * | 1951-02-10 | 1952-06-17 | American Optical Corp | Unitary condenser lens assembly mounting means for projectors |
US2722158A (en) * | 1951-04-27 | 1955-11-01 | Ernest W Goldberg | Lens mount for picture projectors |
US2793563A (en) * | 1952-07-17 | 1957-05-28 | Elmer V Koskela | Combination film strip and slide projector |
US2783679A (en) * | 1953-07-13 | 1957-03-05 | Ernest W Goldberg | Tiltable projector base structure with integral socket mount |
US2822724A (en) * | 1954-08-20 | 1958-02-11 | Raphael L Uffner | Projection meter |
US3007370A (en) * | 1960-02-26 | 1961-11-07 | G M Lab Inc | Automatic slide projector |
US3374707A (en) * | 1965-09-02 | 1968-03-26 | Houston Fearless Corp | Variable width scanning film viewer |
-
1937
- 1937-08-14 US US159144A patent/US2169010A/en not_active Expired - Lifetime
-
1938
- 1938-08-12 FR FR842044D patent/FR842044A/fr not_active Expired
- 1938-08-12 GB GB23835/38A patent/GB507456A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB507456A (en) | 1939-06-15 |
US2169010A (en) | 1939-08-08 |
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