CH580825A5 - - Google Patents
Info
- Publication number
- CH580825A5 CH580825A5 CH260274A CH260274A CH580825A5 CH 580825 A5 CH580825 A5 CH 580825A5 CH 260274 A CH260274 A CH 260274A CH 260274 A CH260274 A CH 260274A CH 580825 A5 CH580825 A5 CH 580825A5
- Authority
- CH
- Switzerland
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)
- Projection Apparatus (AREA)
- Lenses (AREA)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH260274A CH580825A5 (en) | 1974-02-25 | 1974-02-25 | |
DE19752506873 DE2506873A1 (en) | 1974-02-25 | 1975-02-18 | Slide projector with fade in facility - having two optic paths with variable transmission each with slide carrier |
NO750548A NO750548L (en) | 1974-02-25 | 1975-02-18 | |
SE7501899A SE7501899L (en) | 1974-02-25 | 1975-02-20 | |
NL7502024A NL7502024A (en) | 1974-02-25 | 1975-02-20 | OPTICAL DEVICE. |
DD184340A DD117538A5 (en) | 1974-02-25 | 1975-02-21 | |
AU78438/75A AU7843875A (en) | 1974-02-25 | 1975-02-21 | Optical device |
BE153655A BE825883A (en) | 1974-02-25 | 1975-02-24 | OPTICAL DEVICE TO OBTAIN THE CROSS-FADE IN A SLIDE PROJECTION DEVICE |
SU2110333A SU549092A3 (en) | 1974-02-25 | 1975-02-24 | Slide projector |
IT67464/75A IT1030207B (en) | 1974-02-25 | 1975-02-24 | OPTICAL DEVICE TO OBTAIN FADE IN A SLIDE PROJECTION DEVICE |
JP50023767A JPS50127630A (en) | 1974-02-25 | 1975-02-25 | |
ES435043A ES435043A1 (en) | 1974-02-25 | 1975-02-25 | Improvements in optical systems for projection appliances. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH260274A CH580825A5 (en) | 1974-02-25 | 1974-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH580825A5 true CH580825A5 (en) | 1976-10-15 |
Family
ID=4237446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH260274A CH580825A5 (en) | 1974-02-25 | 1974-02-25 |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS50127630A (en) |
AU (1) | AU7843875A (en) |
BE (1) | BE825883A (en) |
CH (1) | CH580825A5 (en) |
DD (1) | DD117538A5 (en) |
DE (1) | DE2506873A1 (en) |
ES (1) | ES435043A1 (en) |
IT (1) | IT1030207B (en) |
NL (1) | NL7502024A (en) |
NO (1) | NO750548L (en) |
SE (1) | SE7501899L (en) |
SU (1) | SU549092A3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595266A (en) * | 1984-03-16 | 1986-06-17 | Source Kramer Corporation | Multiple projection optics slide projection apparatus using a circular slide tray, having fixed-position slide gates |
US9291826B2 (en) * | 2013-11-20 | 2016-03-22 | Christie Digital Systems Usa, Inc. | System for variable distribution of light to a plurality of projectors |
CN107809628B (en) * | 2017-05-12 | 2024-05-28 | 杭州一隅千象科技有限公司 | Projection method, projector and projection system with full coverage of multidirectional ring screen |
-
1974
- 1974-02-25 CH CH260274A patent/CH580825A5/xx not_active IP Right Cessation
-
1975
- 1975-02-18 DE DE19752506873 patent/DE2506873A1/en active Pending
- 1975-02-18 NO NO750548A patent/NO750548L/no unknown
- 1975-02-20 NL NL7502024A patent/NL7502024A/en unknown
- 1975-02-20 SE SE7501899A patent/SE7501899L/xx unknown
- 1975-02-21 AU AU78438/75A patent/AU7843875A/en not_active Expired
- 1975-02-21 DD DD184340A patent/DD117538A5/xx unknown
- 1975-02-24 IT IT67464/75A patent/IT1030207B/en active
- 1975-02-24 BE BE153655A patent/BE825883A/en unknown
- 1975-02-24 SU SU2110333A patent/SU549092A3/en active
- 1975-02-25 ES ES435043A patent/ES435043A1/en not_active Expired
- 1975-02-25 JP JP50023767A patent/JPS50127630A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE7501899L (en) | 1975-08-26 |
DE2506873A1 (en) | 1975-08-28 |
IT1030207B (en) | 1979-03-30 |
NO750548L (en) | 1975-08-26 |
AU7843875A (en) | 1976-08-26 |
JPS50127630A (en) | 1975-10-07 |
ES435043A1 (en) | 1976-12-16 |
DD117538A5 (en) | 1976-01-12 |
NL7502024A (en) | 1975-08-27 |
BE825883A (en) | 1975-06-16 |
SU549092A3 (en) | 1977-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |