GB2097138B - Control arrangement for automatic focusing and exposure camera - Google Patents

Control arrangement for automatic focusing and exposure camera

Info

Publication number
GB2097138B
GB2097138B GB8205795A GB8205795A GB2097138B GB 2097138 B GB2097138 B GB 2097138B GB 8205795 A GB8205795 A GB 8205795A GB 8205795 A GB8205795 A GB 8205795A GB 2097138 B GB2097138 B GB 2097138B
Authority
GB
United Kingdom
Prior art keywords
control arrangement
automatic focusing
exposure camera
exposure
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
Application number
GB8205795A
Other versions
GB2097138A (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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of GB2097138A publication Critical patent/GB2097138A/en
Application granted granted Critical
Publication of GB2097138B publication Critical patent/GB2097138B/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
    • G03B7/091—Digital circuits
    • G03B7/093—Digital circuits for control of exposure time
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
    • 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
    • G03B7/091—Digital circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
GB8205795A 1981-02-26 1982-02-26 Control arrangement for automatic focusing and exposure camera Expired GB2097138B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027131A JPS57141619A (en) 1981-02-26 1981-02-26 Camera equipped with automatic focusing device

Publications (2)

Publication Number Publication Date
GB2097138A GB2097138A (en) 1982-10-27
GB2097138B true GB2097138B (en) 1985-12-18

Family

ID=12212495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8205795A Expired GB2097138B (en) 1981-02-26 1982-02-26 Control arrangement for automatic focusing and exposure camera

Country Status (3)

Country Link
JP (1) JPS57141619A (en)
DE (1) DE3206792A1 (en)
GB (1) GB2097138B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619631A (en) * 1984-06-25 1986-01-17 Seiko Koki Kk Electromagnetically driven shutter in camera
DE3706735A1 (en) * 1986-03-03 1987-09-10 Canon Kk DEVICE FOR ADJUSTING THE OPTICAL SYSTEM OF A CAMERA
US4799077A (en) * 1987-11-23 1989-01-17 Polaroid Corporation Common drive for shutter blades and objective lens assembly
JP2585057B2 (en) * 1988-04-27 1997-02-26 セイコープレシジョン株式会社 Automatic focusing camera and control method thereof
GB2231967B (en) * 1989-04-14 1994-01-12 Asahi Optical Co Ltd Control apparatus of focus and shutter of camera
JP4729546B2 (en) * 2007-09-14 2011-07-20 本田技研工業株式会社 Member supporting clip and its mounting structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471633A (en) * 1977-11-18 1979-06-08 Seiko Koki Kk Exposure controller for automatic focusing camera
DE2755296A1 (en) * 1977-12-12 1979-06-21 Sankyo Kogaku Kogyo Kk Automatic focussing circuit for camera - has delay circuit to ensure lens is focussed before shutter release is effective
US4350418A (en) * 1978-09-14 1982-09-21 Canon Kabushiki Kaisha Camera provided with automatic focus adjusting device
FR2486254B1 (en) * 1980-07-03 1987-06-26 Canon Kk AUTOMATIC FIREPLACE DETECTION AND EXPOSURE CONTROL MEANS FOR A CAMERA

Also Published As

Publication number Publication date
JPS57141619A (en) 1982-09-02
GB2097138A (en) 1982-10-27
DE3206792A1 (en) 1982-10-28

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020225