JPS5145344Y2 - - Google Patents

Info

Publication number
JPS5145344Y2
JPS5145344Y2 JP1972109950U JP10995072U JPS5145344Y2 JP S5145344 Y2 JPS5145344 Y2 JP S5145344Y2 JP 1972109950 U JP1972109950 U JP 1972109950U JP 10995072 U JP10995072 U JP 10995072U JP S5145344 Y2 JPS5145344 Y2 JP S5145344Y2
Authority
JP
Japan
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
JP1972109950U
Other languages
Japanese (ja)
Other versions
JPS4966437U (en]
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 filed Critical
Priority to JP1972109950U priority Critical patent/JPS5145344Y2/ja
Priority to GB4238373A priority patent/GB1433780A/en
Priority to DE19732346215 priority patent/DE2346215A1/de
Priority to US398811A priority patent/US3890627A/en
Publication of JPS4966437U publication Critical patent/JPS4966437U/ja
Application granted granted Critical
Publication of JPS5145344Y2 publication Critical patent/JPS5145344Y2/ja
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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
    • 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
    • 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
    • G03B7/089—Analogue circuits for storage of exposure value in mirror reflex cameras
    • 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
    • G03B7/09976—Through the lens [TTL] measuring in mirror-reflex cameras the sensor being mounted in, before, or behind the porro-prism
    • 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
    • G03B7/09978—Protection against viewer backlight or integration of the viewer light into the measured light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)
  • Exposure Control For Cameras (AREA)
  • Viewfinders (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Blocking Light For Cameras (AREA)
JP1972109950U 1972-09-21 1972-09-21 Expired JPS5145344Y2 (en])

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1972109950U JPS5145344Y2 (en]) 1972-09-21 1972-09-21
GB4238373A GB1433780A (en) 1972-09-21 1973-09-10 Single-lens reflex camera
DE19732346215 DE2346215A1 (de) 1972-09-21 1973-09-13 Einaeugige spiegelreflexkamera mit einem im bildseitigen strahlengang des kameraobjektivs angeordneten photoelektronischen bauelement zur messung der objekthelligkeit
US398811A US3890627A (en) 1972-09-21 1973-09-19 Camera controls for blocking light entering through a viewfinder ocular

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972109950U JPS5145344Y2 (en]) 1972-09-21 1972-09-21

Publications (2)

Publication Number Publication Date
JPS4966437U JPS4966437U (en]) 1974-06-11
JPS5145344Y2 true JPS5145344Y2 (en]) 1976-11-02

Family

ID=14523219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972109950U Expired JPS5145344Y2 (en]) 1972-09-21 1972-09-21

Country Status (4)

Country Link
US (1) US3890627A (en])
JP (1) JPS5145344Y2 (en])
DE (1) DE2346215A1 (en])
GB (1) GB1433780A (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133632U (en]) * 1976-04-07 1977-10-11
JPS5737138Y2 (en]) * 1976-11-29 1982-08-16
JPS5749933A (en) * 1980-09-11 1982-03-24 Victor Co Of Japan Ltd Automatic shutter system of single-lens reflex view finder
US6091911A (en) * 1996-08-30 2000-07-18 Nikon Corporation Microscope photographing unit with brightness control for observation optical system
JP2002182303A (ja) * 2000-12-15 2002-06-26 Asahi Optical Co Ltd ミラーボックスおよび電子スチルカメラ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613543A (en) * 1969-06-24 1971-10-19 Asahi Optical Co Ltd Viewfinder shield for a camera with a self-timer
JPS5132460Y2 (en]) * 1971-08-09 1976-08-13
JPS5113656B2 (en]) * 1971-08-13 1976-05-01

Also Published As

Publication number Publication date
GB1433780A (en) 1976-04-28
JPS4966437U (en]) 1974-06-11
US3890627A (en) 1975-06-17
DE2346215A1 (de) 1974-04-04

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