JPS5778031A - Reflection photometer for single-lens reflex camera - Google Patents

Reflection photometer for single-lens reflex camera

Info

Publication number
JPS5778031A
JPS5778031A JP55154044A JP15404480A JPS5778031A JP S5778031 A JPS5778031 A JP S5778031A JP 55154044 A JP55154044 A JP 55154044A JP 15404480 A JP15404480 A JP 15404480A JP S5778031 A JPS5778031 A JP S5778031A
Authority
JP
Japan
Prior art keywords
lights
lens
photometries
film
reflection plate
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.)
Pending
Application number
JP55154044A
Other languages
Japanese (ja)
Inventor
Takashi Kodama
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP55154044A priority Critical patent/JPS5778031A/en
Publication of JPS5778031A publication Critical patent/JPS5778031A/en
Pending 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Cameras In General (AREA)

Abstract

PURPOSE:To obtain photometry outputs which are similar to photometries of directly reflected lights of films, by receiving images and performing photometries on images formed at the location of the diffuse reflection plate which is conjugate with the film, by the image forming lens and the diffuse reflection plate. CONSTITUTION:Lights of subject passing through a photo taking lens 29 of a single-lens reflect camera form images at a location which is conjugate with a film 28 of a diffuse refletion plate 27 by a condenser lens 25 installed to a movable mirror 22. These image forming lights are reflected by the reflection plate 27 and received by a light receiving element 31, and then the photometry is performed. In this way, automatic exposure controls, etc., are easily and correctly performed, because photometry outputs which are similar to photometries by directly reflected lights of the film are obtained.
JP55154044A 1980-11-01 1980-11-01 Reflection photometer for single-lens reflex camera Pending JPS5778031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154044A JPS5778031A (en) 1980-11-01 1980-11-01 Reflection photometer for single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154044A JPS5778031A (en) 1980-11-01 1980-11-01 Reflection photometer for single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS5778031A true JPS5778031A (en) 1982-05-15

Family

ID=15575685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154044A Pending JPS5778031A (en) 1980-11-01 1980-11-01 Reflection photometer for single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS5778031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514073A (en) * 1982-10-21 1985-04-30 Minolta Camera Kabushiki Kaisha Automatic exposure control camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514073A (en) * 1982-10-21 1985-04-30 Minolta Camera Kabushiki Kaisha Automatic exposure control camera

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