CH449996A - Dia-Projektor - Google Patents
Dia-ProjektorInfo
- Publication number
- CH449996A CH449996A CH390165A CH390165A CH449996A CH 449996 A CH449996 A CH 449996A CH 390165 A CH390165 A CH 390165A CH 390165 A CH390165 A CH 390165A CH 449996 A CH449996 A CH 449996A
- 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)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
- Projection-Type Copiers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US355040A US3249007A (en) | 1964-03-26 | 1964-03-26 | Automatic focusing photographic projector |
Publications (1)
Publication Number | Publication Date |
---|---|
CH449996A true CH449996A (de) | 1968-01-15 |
Family
ID=23395987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH390165A CH449996A (de) | 1964-03-26 | 1965-03-22 | Dia-Projektor |
Country Status (3)
Country | Link |
---|---|
US (1) | US3249007A (de) |
CH (1) | CH449996A (de) |
GB (3) | GB1090127A (de) |
Families Citing this family (15)
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 |
US3387534A (en) * | 1965-05-12 | 1968-06-11 | Durst Ag | Automatic focusing device |
US3399633A (en) * | 1965-10-20 | 1968-09-03 | Herscovitch William Howard | Convertible rail-highway tractor |
US3435744A (en) * | 1966-05-31 | 1969-04-01 | Eastman Kodak Co | Automatic focusing system |
DE1472299C3 (de) * | 1966-09-10 | 1974-12-05 | Ernst Leitz Gmbh, 6330 Wetzlar | Vorrichtung zur selbsttätigen Feineinstellung der Bildschärfe von Diaprojektoren |
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 |
US3447867A (en) * | 1968-06-03 | 1969-06-03 | Eastman Kodak Co | Focus compensating mechanism for single frame projection |
US3589804A (en) * | 1969-07-02 | 1971-06-29 | Bell & Howell Co | Lens-changing system |
US3628863A (en) * | 1969-07-28 | 1971-12-21 | Eastman Kodak Co | Remote focusing override mechanism for an automatic focusing photographic projector |
US4168115A (en) * | 1970-09-04 | 1979-09-18 | Brunswick Corporation | Golf game projector |
US4415244A (en) * | 1982-03-22 | 1983-11-15 | Telex Communications, Inc. | Automatic focusing system |
JPH0827494B2 (ja) * | 1987-07-02 | 1996-03-21 | ミノルタ株式会社 | 複写機 |
US5113268A (en) * | 1988-06-10 | 1992-05-12 | Minolta Camera Kabushiki Kaisha | Dual operational image reading apparatus |
DE4201272A1 (de) * | 1992-01-18 | 1993-07-22 | Kodak Ag | Verfahren zur automatischen bildscharfstellung bei verwendung glasgerahmter und glaslos gerahmter dias in diaprojektoren |
Family Cites Families (5)
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 |
US3205766A (en) * | 1962-06-18 | 1965-09-14 | Eastman Kodak Co | Control apparatus |
-
1964
- 1964-03-26 US US355040A patent/US3249007A/en not_active Expired - Lifetime
-
1965
- 1965-03-22 CH CH390165A patent/CH449996A/de unknown
- 1965-03-24 GB GB12458/65A patent/GB1090127A/en not_active Expired
- 1965-03-24 GB GB12457/65A patent/GB1090126A/en not_active Expired
- 1965-03-24 GB GB12459/65A patent/GB1090128A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1090126A (en) | 1967-11-08 |
GB1090127A (en) | 1967-11-08 |
GB1090128A (en) | 1967-11-08 |
US3249007A (en) | 1966-05-03 |
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