CA933007A - Photographic camera having backup system for automatic film speed insertion - Google Patents

Photographic camera having backup system for automatic film speed insertion

Info

Publication number: CA933007A
Authority: CA; Canada
Prior art keywords: backup system; photographic camera; automatic film; film speed; speed insertion
Prior art date: 1970-01-02
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

CA101860A

Other languages

English (en)

Other versions

CA101860S (en

Inventor

P. Burgarella John

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.)

Polaroid Corp

Original Assignee

Polaroid Corp

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.)

1970-01-02

Filing date

1970-12-31

Publication date

1973-09-04

1970-12-31 Application filed by Polaroid Corp filed Critical Polaroid Corp

1973-09-04 Application granted granted Critical

1973-09-04 Publication of CA933007A publication Critical patent/CA933007A/en

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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/24—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly automatically in accordance with markings or other means indicating film speed or kind of film on the magazine to be inserted in the camera
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/22—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with temperature or height, e.g. in aircraft

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Exposure Control For Cameras (AREA)
Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)

CA101860A 1970-01-02 1970-12-31 Photographic camera having backup system for automatic film speed insertion Expired CA933007A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US670A	1970-01-02	1970-01-02

Publications (1)

Publication Number	Publication Date
CA933007A true CA933007A (en)	1973-09-04

Family

ID=21689457

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA101860A Expired CA933007A (en)	1970-01-02	1970-12-31	Photographic camera having backup system for automatic film speed insertion

Country Status (7)

Country	Link
US (1)	US3631776A (nl)
JP (1)	JPS544259B1 (nl)
CA (1)	CA933007A (nl)
DE (1)	DE2064392B2 (nl)
FR (1)	FR2075154A5 (nl)
GB (1)	GB1316770A (nl)
NL (1)	NL174400C (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1511324A (en) *	1974-07-05	1978-05-17	Polaroid Corp	Photographic film cassettes
US4736215A (en) *	1986-11-21	1988-04-05	Polaroid Corporation	Photographic method and apparatus employing automatic camera adjustment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1472663A1 (de) *	1964-10-27	1969-04-24	Yashica Co Ltd	Automatischer Belichtungszeitregler mit Anzeige von Aufnahmehelligkeitsgrenzen
US3421421A (en) *	1965-11-18	1969-01-14	Pentacon Dresden Veb	Photographic and cinemagraphic cameras
DE1522325A1 (de) *	1966-03-10	1969-08-07	Zeiss Ikon Ag	Filmkassette und Kamera mit Belichtungsmess- bzw. Steuereinrichtung
US3524392A (en) *	1966-03-14	1970-08-18	Pentacon Dresden Veb	Photographic camera with adjustable film speed control

1970
- 1970-01-02 US US6A patent/US3631776A/en not_active Expired - Lifetime
- 1970-12-30 DE DE2064392A patent/DE2064392B2/de not_active Withdrawn
- 1970-12-30 JP JP12313470A patent/JPS544259B1/ja active Pending
- 1970-12-31 FR FR7047465A patent/FR2075154A5/fr not_active Expired
- 1970-12-31 CA CA101860A patent/CA933007A/en not_active Expired
- 1970-12-31 NL NLAANVRAGE7019076,A patent/NL174400C/nl not_active IP Right Cessation
- 1970-12-31 GB GB6202870A patent/GB1316770A/en not_active Expired

Also Published As

Publication number	Publication date
DE2064392A1 (de)	1972-07-20
GB1316770A (en)	1973-05-16
NL174400C (nl)	1984-06-01
FR2075154A5 (nl)	1971-10-08
NL174400B (nl)	1984-01-02
JPS544259B1 (nl)	1979-03-05
NL7019076A (nl)	1971-07-06
US3631776A (en)	1972-01-04
DE2064392B2 (de)	1979-02-22

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