FR1304976A - Improvements to the shutters of fixed projection devices - Google Patents
Improvements to the shutters of fixed projection devicesInfo
- Publication number
- FR1304976A FR1304976A FR877895A FR877895A FR1304976A FR 1304976 A FR1304976 A FR 1304976A FR 877895 A FR877895 A FR 877895A FR 877895 A FR877895 A FR 877895A FR 1304976 A FR1304976 A FR 1304976A
- Authority
- FR
- France
- Prior art keywords
- shutters
- projection devices
- fixed projection
- fixed
- devices
- 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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR877895A FR1304976A (en) | 1961-11-03 | 1961-11-03 | Improvements to the shutters of fixed projection devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR877895A FR1304976A (en) | 1961-11-03 | 1961-11-03 | Improvements to the shutters of fixed projection devices |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1304976A true FR1304976A (en) | 1962-09-28 |
Family
ID=8765990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR877895A Expired FR1304976A (en) | 1961-11-03 | 1961-11-03 | Improvements to the shutters of fixed projection devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1304976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010554A1 (en) * | 1978-11-02 | 1980-05-14 | Rollei-Werke Franke & Heidecke GmbH + Co KG | Device for optically suppressing the motion of picture changes in projecting apparatuses |
-
1961
- 1961-11-03 FR FR877895A patent/FR1304976A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010554A1 (en) * | 1978-11-02 | 1980-05-14 | Rollei-Werke Franke & Heidecke GmbH + Co KG | Device for optically suppressing the motion of picture changes in projecting apparatuses |
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