JPS5734535A - Photometric method in camera - Google Patents

Photometric method in camera

Info

Publication number
JPS5734535A
JPS5734535A JP10985780A JP10985780A JPS5734535A JP S5734535 A JPS5734535 A JP S5734535A JP 10985780 A JP10985780 A JP 10985780A JP 10985780 A JP10985780 A JP 10985780A JP S5734535 A JPS5734535 A JP S5734535A
Authority
JP
Japan
Prior art keywords
film
mirror
photometry
spot
constitution
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
JP10985780A
Other languages
Japanese (ja)
Inventor
Shinji Tanigawara
Kazuhiro Okada
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.)
Mamiya Camera Co Ltd
Original Assignee
Mamiya Camera 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 Mamiya Camera Co Ltd filed Critical Mamiya Camera Co Ltd
Priority to JP10985780A priority Critical patent/JPS5734535A/en
Publication of JPS5734535A publication Critical patent/JPS5734535A/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

Abstract

PURPOSE:To permit photometry of spot and entire surface easily by providing a transparent photodetector on the front surface of a film or on an angular rotating mirror. CONSTITUTION:An object image is formed on a focal plane 3' of focal glass 3 (hence film plane) with a mirror 2 by adjusting a lens group 1. Thence, the optical path is bent by a pentagonal prism 5 past a capacitor 4 and the focus of mirror- reflected light B is made easy to see by a magnifier 6. Here, a transparent photodetector substrate 8 mounted with a transparent photodetector 8' is placed on the front surface of the film, and direct photodetection and measurement are carried out on this surface, whereby necessary command is accomplished. With such constitution, the photometry of spot and entire surface is performed by the simple mechanism. Hence, accurate photographing is performed.
JP10985780A 1980-08-12 1980-08-12 Photometric method in camera Pending JPS5734535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10985780A JPS5734535A (en) 1980-08-12 1980-08-12 Photometric method in camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10985780A JPS5734535A (en) 1980-08-12 1980-08-12 Photometric method in camera

Publications (1)

Publication Number Publication Date
JPS5734535A true JPS5734535A (en) 1982-02-24

Family

ID=14520947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10985780A Pending JPS5734535A (en) 1980-08-12 1980-08-12 Photometric method in camera

Country Status (1)

Country Link
JP (1) JPS5734535A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924187A (en) * 1972-06-26 1974-03-04
JPS5057482A (en) * 1973-09-14 1975-05-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924187A (en) * 1972-06-26 1974-03-04
JPS5057482A (en) * 1973-09-14 1975-05-19

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