JPS5220019A - Compensating system for an inverted light entering into the finder - Google Patents

Compensating system for an inverted light entering into the finder

Info

Publication number
JPS5220019A
JPS5220019A JP50096489A JP9648975A JPS5220019A JP S5220019 A JPS5220019 A JP S5220019A JP 50096489 A JP50096489 A JP 50096489A JP 9648975 A JP9648975 A JP 9648975A JP S5220019 A JPS5220019 A JP S5220019A
Authority
JP
Japan
Prior art keywords
finder
light entering
light
inverted light
compensating system
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
JP50096489A
Other languages
Japanese (ja)
Inventor
Ikuichi Tsunekawa
Fumio Ito
Masanori Uchitoi
Yukio Mashita
Masayoshi Yamamichi
Tadashi Ito
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP50096489A priority Critical patent/JPS5220019A/en
Publication of JPS5220019A publication Critical patent/JPS5220019A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Viewfinders (AREA)

Abstract

PURPOSE: To perform an automatic compensation for an inverted light from the photo-current characteristic of a light receptor element by connecting a light receptor element in parallel and with an inverted light into a finder to a light receptor element in parallel and with an inverted polarity in the case where an inversion input and a non-inversion input of an operational amplifier are coupled to a light receptor element which measures the brightness of an object.
COPYRIGHT: (C)1977,JPO&Japio
JP50096489A 1975-08-08 1975-08-08 Compensating system for an inverted light entering into the finder Pending JPS5220019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50096489A JPS5220019A (en) 1975-08-08 1975-08-08 Compensating system for an inverted light entering into the finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50096489A JPS5220019A (en) 1975-08-08 1975-08-08 Compensating system for an inverted light entering into the finder

Publications (1)

Publication Number Publication Date
JPS5220019A true JPS5220019A (en) 1977-02-15

Family

ID=14166476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50096489A Pending JPS5220019A (en) 1975-08-08 1975-08-08 Compensating system for an inverted light entering into the finder

Country Status (1)

Country Link
JP (1) JPS5220019A (en)

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