DD117538A5 - - Google Patents
Info
- Publication number
- DD117538A5 DD117538A5 DD184340A DD18434075A DD117538A5 DD 117538 A5 DD117538 A5 DD 117538A5 DD 184340 A DD184340 A DD 184340A DD 18434075 A DD18434075 A DD 18434075A DD 117538 A5 DD117538 A5 DD 117538A5
- Authority
- DD
- German Democratic Republic
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH260274A CH580825A5 (enrdf_load_stackoverflow) | 1974-02-25 | 1974-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD117538A5 true DD117538A5 (enrdf_load_stackoverflow) | 1976-01-12 |
Family
ID=4237446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD184340A DD117538A5 (enrdf_load_stackoverflow) | 1974-02-25 | 1975-02-21 |
Country Status (12)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE38727T1 (de) * | 1984-03-16 | 1988-12-15 | Gideon A Kramer | Diaprojektor fuer rundmagazine mit doppeloptik und festen projektionsoeffnungen. |
| 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 (zh) * | 2017-05-12 | 2024-05-28 | 杭州一隅千象科技有限公司 | 多方向环幕全覆盖的投影方法、投影仪及投影系统 |
-
1974
- 1974-02-25 CH CH260274A patent/CH580825A5/xx not_active IP Right Cessation
-
1975
- 1975-02-18 DE DE19752506873 patent/DE2506873A1/de active Pending
- 1975-02-18 NO NO750548A patent/NO750548L/no unknown
- 1975-02-20 SE SE7501899A patent/SE7501899L/xx unknown
- 1975-02-20 NL NL7502024A patent/NL7502024A/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 SU SU2110333A patent/SU549092A3/ru active
- 1975-02-24 IT IT67464/75A patent/IT1030207B/it active
- 1975-02-24 BE BE153655A patent/BE825883A/xx unknown
- 1975-02-25 ES ES435043A patent/ES435043A1/es not_active Expired
- 1975-02-25 JP JP50023767A patent/JPS50127630A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES435043A1 (es) | 1976-12-16 |
| DE2506873A1 (de) | 1975-08-28 |
| AU7843875A (en) | 1976-08-26 |
| SE7501899L (enrdf_load_stackoverflow) | 1975-08-26 |
| BE825883A (fr) | 1975-06-16 |
| NO750548L (enrdf_load_stackoverflow) | 1975-08-26 |
| SU549092A3 (ru) | 1977-02-28 |
| CH580825A5 (enrdf_load_stackoverflow) | 1976-10-15 |
| JPS50127630A (enrdf_load_stackoverflow) | 1975-10-07 |
| NL7502024A (nl) | 1975-08-27 |
| IT1030207B (it) | 1979-03-30 |