FR1503452A - Dispositif de mise au point pour projecteurs de diapositives - Google Patents

Dispositif de mise au point pour projecteurs de diapositives

Info

Publication number: FR1503452A
Authority: FR; France
Prior art keywords: focusing device; slide projectors; projectors; slide; focusing
Prior art date: 1965-12-11
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

Application number

FR86741A

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Braun GmbH

Original Assignee

Braun GmbH

Priority date (The priority date 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 date listed.)

1965-12-11

Filing date

1966-12-08

Publication date

1967-11-24

1966-12-08 Application filed by Braun GmbH filed Critical Braun GmbH

1967-11-24 Application granted granted Critical

1967-11-24 Publication of FR1503452A publication Critical patent/FR1503452A/fr

Status Expired legal-status Critical Current

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
- 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
- G03B21/001—Slide projectors
- 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)
Overhead Projectors And Projection Screens (AREA)

FR86741A 1965-12-11 1966-12-08 Dispositif de mise au point pour projecteurs de diapositives Expired FR1503452A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEB84938A DE1261337B (de)	1965-12-11	1965-12-11	Vorrichtung zum Scharfeinstellen von Diaprojektoren

Publications (1)

Publication Number	Publication Date
FR1503452A true FR1503452A (fr)	1967-11-24

Family

ID=6982674

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR86741A Expired FR1503452A (fr)	1965-12-11	1966-12-08	Dispositif de mise au point pour projecteurs de diapositives

Country Status (6)

Country	Link
US (1)	US3414352A (fr)
AT (1)	AT265698B (fr)
BE (1)	BE690975A (fr)
DE (1)	DE1261337B (fr)
FR (1)	FR1503452A (fr)
GB (1)	GB1121820A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5537168A (en) *	1991-04-26	1996-07-16	Canon Kabushiki Kaisha	Projection optical apparatus comprising automatic adjustment unit
DE69222094T2 (de) *	1991-06-14	1998-01-22	Canon Kk	Projektionseinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE618823C (de) *		1935-09-16	Franz Paul Wimmer	Bildhalter fuer Projektionsapparate
FR1224422A (fr) *	1959-05-05	1960-06-23	Kamera & Kinowerke Dresden Veb	Châssis de coulissement des diapositives pour appareils de projection
ATE44299T1 (de) *	1986-02-21	1989-07-15	Rolf Scheiwiller	Bausatz zur erstellung von mauerwerken.

1965
- 1965-12-11 DE DEB84938A patent/DE1261337B/de active Pending
1966
- 1966-12-05 US US599170A patent/US3414352A/en not_active Expired - Lifetime
- 1966-12-08 GB GB55051/66A patent/GB1121820A/en not_active Expired
- 1966-12-08 FR FR86741A patent/FR1503452A/fr not_active Expired
- 1966-12-09 BE BE690975D patent/BE690975A/xx unknown
- 1966-12-09 AT AT1133266A patent/AT265698B/de active

Also Published As

Publication number	Publication date
US3414352A (en)	1968-12-03
DE1261337B (de)	1968-02-15
BE690975A (fr)	1967-05-16
AT265698B (de)	1968-10-25
GB1121820A (en)	1968-07-31

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