GB2199667B - Improvements in or relating to camera aperture control systems - Google Patents

Improvements in or relating to camera aperture control systems

Info

Publication number
GB2199667B
GB2199667B GB8729556A GB8729556A GB2199667B GB 2199667 B GB2199667 B GB 2199667B GB 8729556 A GB8729556 A GB 8729556A GB 8729556 A GB8729556 A GB 8729556A GB 2199667 B GB2199667 B GB 2199667B
Authority
GB
United Kingdom
Prior art keywords
relating
control systems
aperture control
camera aperture
camera
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 - Fee Related
Application number
GB8729556A
Other versions
GB2199667A (en
GB8729556D0 (en
Inventor
Klaus Raschke
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.)
HAKING W ETS Ltd
W Haking Enterprises Ltd
Original Assignee
HAKING W ETS Ltd
W Haking Enterprises 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
Priority claimed from US06/926,610 external-priority patent/US4727389A/en
Application filed by HAKING W ETS Ltd, W Haking Enterprises Ltd filed Critical HAKING W ETS Ltd
Publication of GB8729556D0 publication Critical patent/GB8729556D0/en
Publication of GB2199667A publication Critical patent/GB2199667A/en
Application granted granted Critical
Publication of GB2199667B publication Critical patent/GB2199667B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03B7/085—Analogue circuits for control of aperture
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Focusing (AREA)
GB8729556A 1986-11-12 1987-12-18 Improvements in or relating to camera aperture control systems Expired - Fee Related GB2199667B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/926,610 US4727389A (en) 1986-02-07 1986-11-12 Automatic focus and exposure controlled camera

Publications (3)

Publication Number Publication Date
GB8729556D0 GB8729556D0 (en) 1988-02-03
GB2199667A GB2199667A (en) 1988-07-13
GB2199667B true GB2199667B (en) 1990-05-09

Family

ID=25453445

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8627456A Expired - Fee Related GB2197725B (en) 1986-11-12 1986-11-17 Automatic focus and exposure controlled camera
GB8729556A Expired - Fee Related GB2199667B (en) 1986-11-12 1987-12-18 Improvements in or relating to camera aperture control systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8627456A Expired - Fee Related GB2197725B (en) 1986-11-12 1986-11-17 Automatic focus and exposure controlled camera

Country Status (1)

Country Link
GB (2) GB2197725B (en)

Also Published As

Publication number Publication date
GB2199667A (en) 1988-07-13
GB8729556D0 (en) 1988-02-03
GB8627456D0 (en) 1986-12-17
GB2197725B (en) 1990-05-09
GB2197725A (en) 1988-05-25

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Legal Events

Date Code Title Description
711B Application made for correction of error (sect. 117/77)
711E Case decided by the comptroller ** specification corrected (sect. 117/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971117