JPS5720721A - Photometer - Google Patents

Photometer

Info

Publication number
JPS5720721A
JPS5720721A JP9608680A JP9608680A JPS5720721A JP S5720721 A JPS5720721 A JP S5720721A JP 9608680 A JP9608680 A JP 9608680A JP 9608680 A JP9608680 A JP 9608680A JP S5720721 A JPS5720721 A JP S5720721A
Authority
JP
Japan
Prior art keywords
image
pickup element
shutter screen
subject
film
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
JP9608680A
Other languages
Japanese (ja)
Inventor
Isao Matsui
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9608680A priority Critical patent/JPS5720721A/en
Publication of JPS5720721A publication Critical patent/JPS5720721A/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)

Abstract

PURPOSE:To indicate suitable exposure in a moment by dividing a subject into a lot of picture elements to photograph them and installing an apparatus to extract the maximum and minimum of the outputs from the photographing apparatus. CONSTITUTION:A part of lights passed through a photographing lens 1 passes through a half mirror 2 with the transmission factor of 10%, for example, and forms the image of the subject on a shutter screen 4 with the same reflecting characteristic with that of a film 3. Although the image is out of focus since the shutter screen 4 is separated from the film 3, nothing has influence to the photometric purpose. The image on the shutter screen 4 is projected on a solid pickup element 6 through a photometric lens 5. The solid pickup element 6 with several tens or hundreds of picture elements is used in the same construction as a television pickup element.
JP9608680A 1980-07-14 1980-07-14 Photometer Pending JPS5720721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9608680A JPS5720721A (en) 1980-07-14 1980-07-14 Photometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9608680A JPS5720721A (en) 1980-07-14 1980-07-14 Photometer

Publications (1)

Publication Number Publication Date
JPS5720721A true JPS5720721A (en) 1982-02-03

Family

ID=14155583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9608680A Pending JPS5720721A (en) 1980-07-14 1980-07-14 Photometer

Country Status (1)

Country Link
JP (1) JPS5720721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010272966A (en) * 2009-05-19 2010-12-02 Nikon Corp Photometric device and imaging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010272966A (en) * 2009-05-19 2010-12-02 Nikon Corp Photometric device and imaging device

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