JPS5749929A - Photometric device of camera - Google Patents

Photometric device of camera

Info

Publication number
JPS5749929A
JPS5749929A JP55126576A JP12657680A JPS5749929A JP S5749929 A JPS5749929 A JP S5749929A JP 55126576 A JP55126576 A JP 55126576A JP 12657680 A JP12657680 A JP 12657680A JP S5749929 A JPS5749929 A JP S5749929A
Authority
JP
Japan
Prior art keywords
reflected light
photometric
sensitivity distribution
regularly reflected
side surfaces
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
JP55126576A
Other languages
Japanese (ja)
Inventor
Katsumi Terada
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 JP55126576A priority Critical patent/JPS5749929A/en
Publication of JPS5749929A publication Critical patent/JPS5749929A/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)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To perform photometry with adequate photometric sensitivity distribution by using a photodetection lens, modified by weakening condensing operation for regularly reflected light from a photographic screen to obtain desired photometric sensitivity distribution, and a photoelectric converting element arranged corresponding to the lens. CONSTITUTION:Of refularly reflected light reflected by a morror surface at a point B in an area A where regularly reflected light is generated on a film surface, the regularly reflected light entering the region of a three-dimensional angle including the cut side surfaces 32a1 and 32b1 of photodetection lenses 32a and 32b is diffused or scattered in the side surfaces 32a1 and 32b1 and never incident to a photoelectric converting element 34 in a photometric device 31 directly. This applies to the regularly reflected light reflected by the mirror surface at every point in the area A, and consequently the influence of the regularly reflected light upon the photometric sensitivity distribution characteristics of the photometric device 31 is reduced. For this purpose, the photometric device is provided with the desired photometric sensitivity distribution characteristics by adjusting the formation positions of the cut side surfaces 32a1 and 32b1 properly.
JP55126576A 1980-09-10 1980-09-10 Photometric device of camera Pending JPS5749929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126576A JPS5749929A (en) 1980-09-10 1980-09-10 Photometric device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126576A JPS5749929A (en) 1980-09-10 1980-09-10 Photometric device of camera

Publications (1)

Publication Number Publication Date
JPS5749929A true JPS5749929A (en) 1982-03-24

Family

ID=14938580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126576A Pending JPS5749929A (en) 1980-09-10 1980-09-10 Photometric device of camera

Country Status (1)

Country Link
JP (1) JPS5749929A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5748390A (en) * 1996-01-24 1998-05-05 Olympus Optical Co., Ltd. Imaging lens system
US5772682A (en) * 1996-06-19 1998-06-30 Masanobu Yokomizo Nose raising orthopedic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5748390A (en) * 1996-01-24 1998-05-05 Olympus Optical Co., Ltd. Imaging lens system
US5772682A (en) * 1996-06-19 1998-06-30 Masanobu Yokomizo Nose raising orthopedic device

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