CH418672A - Dia-Projektor - Google Patents
Dia-ProjektorInfo
- Publication number
- CH418672A CH418672A CH743864A CH743864A CH418672A CH 418672 A CH418672 A CH 418672A CH 743864 A CH743864 A CH 743864A CH 743864 A CH743864 A CH 743864A CH 418672 A CH418672 A CH 418672A
- Authority
- CH
- Switzerland
- Prior art keywords
- slide projector
- projector
- slide
- Prior art date
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
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US286708A US3249001A (en) | 1963-06-10 | 1963-06-10 | Automatic focusing photographic projector |
Publications (1)
Publication Number | Publication Date |
---|---|
CH418672A true CH418672A (de) | 1966-08-15 |
Family
ID=23099821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH743864A CH418672A (de) | 1963-06-10 | 1964-06-08 | Dia-Projektor |
Country Status (4)
Country | Link |
---|---|
US (1) | US3249001A (de) |
CH (1) | CH418672A (de) |
DE (1) | DE1258624C2 (de) |
GB (1) | GB1016567A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3308536A1 (de) * | 1982-03-22 | 1983-10-20 | Telex Communications, Inc., 55420 Minneapolis, Minn. | Selbsttaetige scharfeinstellvorrichtung |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296924A (en) * | 1965-02-23 | 1967-01-10 | Bell & Howell Co | Single cell image plane position appraisal system for a slide projector |
US3342102A (en) * | 1965-02-23 | 1967-09-19 | Bell & Howell Co | Image plane position appraisal system for a slide projector |
US3536392A (en) * | 1967-04-17 | 1970-10-27 | Gaf Corp | Automatic focusing system for image projecting devices |
US3466125A (en) * | 1967-06-23 | 1969-09-09 | Eastman Kodak Co | Focus adjusting circuitry for a slide projector |
US3601482A (en) * | 1969-10-23 | 1971-08-24 | Eastman Kodak Co | Automatic focusing mechanism for a lap dissolve projector |
US3635551A (en) * | 1970-05-18 | 1972-01-18 | Gaf Corp | Automatic focusing system for projectors and the like |
DE2121379C3 (de) * | 1971-04-30 | 1979-10-18 | Heinz 3000 Hannover Preuss | Audiovisuelles Wiedergabegerät und dafür bestimmte Bild-Ton-Platte |
US3972607A (en) * | 1974-12-30 | 1976-08-03 | Agfa-Gevaert, A.G. | Analog/digital control arrangement for photographic apparatus |
DE4243488A1 (de) * | 1992-12-22 | 1994-06-23 | Zeiss Carl Fa | Operationsmikroskop |
CN104267562A (zh) * | 2014-10-29 | 2015-01-07 | 成都怡云科技有限公司 | 一种带有播放幻灯片的多功能光学投影仪 |
CN111044455B (zh) * | 2019-12-27 | 2022-08-30 | 河北工程大学 | 一种数字全息显微成像设备光路共焦装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR903962A (fr) * | 1943-05-04 | 1945-10-23 | Tobis Tonbild Syndikat Gmbh | Procédé de contrôle de la position du film dans les appareils de projection des films à images |
GB823404A (en) * | 1956-07-13 | 1959-11-11 | Essoldomatic Ltd | Improvements in motion picture projection apparatus |
US2947215A (en) * | 1957-03-04 | 1960-08-02 | George A Mitchell | Compensating film warpage in projectors |
US3037423A (en) * | 1957-12-30 | 1962-06-05 | Polaroid Corp | Automatic focusing system |
DE1127617B (de) * | 1960-06-29 | 1962-04-12 | Dresden Feinmess | Fokussierungsvorrichtung fuer Projektoren, insbesondere Stehbildwerfer |
US3205766A (en) * | 1962-06-18 | 1965-09-14 | Eastman Kodak Co | Control apparatus |
-
1963
- 1963-06-10 US US286708A patent/US3249001A/en not_active Expired - Lifetime
-
1964
- 1964-05-14 GB GB20131/64A patent/GB1016567A/en not_active Expired
- 1964-06-08 CH CH743864A patent/CH418672A/de unknown
- 1964-06-09 DE DE1964H0052918 patent/DE1258624C2/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3308536A1 (de) * | 1982-03-22 | 1983-10-20 | Telex Communications, Inc., 55420 Minneapolis, Minn. | Selbsttaetige scharfeinstellvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
US3249001A (en) | 1966-05-03 |
GB1016567A (en) | 1966-01-12 |
DE1258624C2 (de) | 1975-08-21 |
DE1258624B (de) | 1975-08-21 |
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