GB1354812A - Exposure time and shutter control circuit for a camera - Google Patents

Exposure time and shutter control circuit for a camera

Info

Publication number
GB1354812A
GB1354812A GB2219472A GB2219472A GB1354812A GB 1354812 A GB1354812 A GB 1354812A GB 2219472 A GB2219472 A GB 2219472A GB 2219472 A GB2219472 A GB 2219472A GB 1354812 A GB1354812 A GB 1354812A
Authority
GB
United Kingdom
Prior art keywords
exposure time
camera
control circuit
shutter control
heading
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
GB2219472A
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 GB1354812A publication Critical patent/GB1354812A/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)
  • Shutter-Related Mechanisms (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Shutters For Cameras (AREA)

Abstract

1354812 Shutter exposure time indicating arrangements ASAHI KOGAKU KOGYO K K 11 May 1972 [12 May 1971] 22194/72 Heading G2A The description is identical with that of Specification 1354811, the claims being directed to the coupling of the indicator circuit 13 with the storage capacitor 9.
GB2219472A 1971-05-12 1972-05-11 Exposure time and shutter control circuit for a camera Expired GB1354812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3731971U JPS4736238U (en) 1971-05-12 1971-05-12

Publications (1)

Publication Number Publication Date
GB1354812A true GB1354812A (en) 1974-06-05

Family

ID=12494335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2219472A Expired GB1354812A (en) 1971-05-12 1972-05-11 Exposure time and shutter control circuit for a camera

Country Status (2)

Country Link
JP (1) JPS4736238U (en)
GB (1) GB1354812A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5339836Y2 (en) * 1973-09-21 1978-09-27

Also Published As

Publication number Publication date
JPS4736238U (en) 1972-12-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee