GB1337339A - Electric shutter control circuit for a single-lens reflex camera - Google Patents

Electric shutter control circuit for a single-lens reflex camera

Info

Publication number
GB1337339A
GB1337339A GB2928271A GB2928271A GB1337339A GB 1337339 A GB1337339 A GB 1337339A GB 2928271 A GB2928271 A GB 2928271A GB 2928271 A GB2928271 A GB 2928271A GB 1337339 A GB1337339 A GB 1337339A
Authority
GB
United Kingdom
Prior art keywords
cell
control circuit
reflex camera
photo
capacitor
Prior art date
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
GB2928271A
Other languages
English (en)
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of GB1337339A publication Critical patent/GB1337339A/en
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
GB2928271A 1970-07-02 1971-06-22 Electric shutter control circuit for a single-lens reflex camera Expired GB1337339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45058022A JPS4923777B1 (enExample) 1970-07-02 1970-07-02

Publications (1)

Publication Number Publication Date
GB1337339A true GB1337339A (en) 1973-11-14

Family

ID=13072317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2928271A Expired GB1337339A (en) 1970-07-02 1971-06-22 Electric shutter control circuit for a single-lens reflex camera

Country Status (5)

Country Link
US (1) US3726196A (enExample)
JP (1) JPS4923777B1 (enExample)
DE (1) DE2131701A1 (enExample)
FR (1) FR2098132A5 (enExample)
GB (1) GB1337339A (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347141A (en) * 1963-07-27 1967-10-17 Asahi Optical Co Ltd Camera shutter control device
US3324779A (en) * 1964-05-26 1967-06-13 Asahi Optical Co Ltd Photoelectric time control shutter circuit for photographic camera
US3568582A (en) * 1967-09-27 1971-03-09 Konishiroku Photo Ind Electronic shutter

Also Published As

Publication number Publication date
JPS4923777B1 (enExample) 1974-06-18
FR2098132A5 (enExample) 1972-03-03
DE2131701A1 (de) 1972-01-05
US3726196A (en) 1973-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]