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GB2289545B - A brightness detecting device for an automatic exposure camera and a method of detecting brightness in an automatic exposure camera - Google Patents

A brightness detecting device for an automatic exposure camera and a method of detecting brightness in an automatic exposure camera

Info

Publication number
GB2289545B
GB2289545B GB9509868A GB9509868A GB2289545B GB 2289545 B GB2289545 B GB 2289545B GB 9509868 A GB9509868 A GB 9509868A GB 9509868 A GB9509868 A GB 9509868A GB 2289545 B GB2289545 B GB 2289545B
Authority
GB
United Kingdom
Prior art keywords
brightness
automatic exposure
exposure camera
detecting
detecting device
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
GB9509868A
Other versions
GB9509868D0 (en
GB2289545A (en
Inventor
Soon-Gil Seo
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.)
Hanwha Aerospace Co Ltd
Original Assignee
Samsung Aerospace Industries 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 Samsung Aerospace Industries Ltd filed Critical Samsung Aerospace Industries Ltd
Publication of GB9509868D0 publication Critical patent/GB9509868D0/en
Publication of GB2289545A publication Critical patent/GB2289545A/en
Application granted granted Critical
Publication of GB2289545B publication Critical patent/GB2289545B/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Studio Devices (AREA)
GB9509868A 1994-05-16 1995-05-16 A brightness detecting device for an automatic exposure camera and a method of detecting brightness in an automatic exposure camera Expired - Fee Related GB2289545B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940010656A KR100236641B1 (en) 1994-05-16 1994-05-16 Continuous illuminent measuring apparatus and control method of a camera

Publications (3)

Publication Number Publication Date
GB9509868D0 GB9509868D0 (en) 1995-07-12
GB2289545A GB2289545A (en) 1995-11-22
GB2289545B true GB2289545B (en) 1997-12-10

Family

ID=19383152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9509868A Expired - Fee Related GB2289545B (en) 1994-05-16 1995-05-16 A brightness detecting device for an automatic exposure camera and a method of detecting brightness in an automatic exposure camera

Country Status (7)

Country Link
JP (1) JPH0850314A (en)
KR (1) KR100236641B1 (en)
CN (1) CN1144914A (en)
DE (1) DE19517747A1 (en)
FR (1) FR2719916B1 (en)
GB (1) GB2289545B (en)
RU (1) RU2134896C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4820499B2 (en) * 2001-06-27 2011-11-24 Ｈｏｙａ株式会社 Camera with strobe auto shooting function
JP4916268B2 (en) * 2006-09-29 2012-04-11 キヤノン株式会社 Imaging apparatus and control method thereof
JP5478213B2 (en) * 2009-11-20 2014-04-23 オリンパスイメージング株式会社 camera

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471970A (en) * 1973-12-05 1977-04-27 Asahi Optical Co Ltd Exposure time control circuit for a camera
US4187017A (en) * 1977-11-11 1980-02-05 Nippon Kogaku K.K. Motor drive device in a camera
US4566774A (en) * 1980-05-27 1986-01-28 Konishiroku Photo Industry Co., Ltd. Automatic exposure camera
GB2169089A (en) * 1984-11-21 1986-07-02 Canon Kk Multi-spotwise light sensing
GB2280028A (en) * 1993-07-01 1995-01-18 Samsung Aerospace Ind Camera light meter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792820A (en) * 1985-09-13 1988-12-20 Minolta Camera Kabushiki Kaisha Camera with automatic focus and exposure control means
US5191384A (en) * 1988-01-30 1993-03-02 Minolta Camera Kabushiki Kaisha Distance measuring system
EP0499210B1 (en) * 1991-02-13 2000-09-13 Nikon Corporation Light metering calculation apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471970A (en) * 1973-12-05 1977-04-27 Asahi Optical Co Ltd Exposure time control circuit for a camera
US4187017A (en) * 1977-11-11 1980-02-05 Nippon Kogaku K.K. Motor drive device in a camera
US4566774A (en) * 1980-05-27 1986-01-28 Konishiroku Photo Industry Co., Ltd. Automatic exposure camera
GB2169089A (en) * 1984-11-21 1986-07-02 Canon Kk Multi-spotwise light sensing
GB2280028A (en) * 1993-07-01 1995-01-18 Samsung Aerospace Ind Camera light meter

Also Published As

Publication number Publication date
RU95107896A (en) 1997-05-10
DE19517747A1 (en) 1995-11-23
KR100236641B1 (en) 2000-01-15
RU2134896C1 (en) 1999-08-20
GB9509868D0 (en) 1995-07-12
FR2719916A1 (en) 1995-11-17
KR950033632A (en) 1995-12-26
CN1144914A (en) 1997-03-12
GB2289545A (en) 1995-11-22
JPH0850314A (en) 1996-02-20
FR2719916B1 (en) 1998-01-30

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Legal Events

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

Effective date: 19990516