JPS52110038A - Detection of distinctness of object image - Google Patents

Detection of distinctness of object image

Info

Publication number
JPS52110038A
JPS52110038A JP2758576A JP2758576A JPS52110038A JP S52110038 A JPS52110038 A JP S52110038A JP 2758576 A JP2758576 A JP 2758576A JP 2758576 A JP2758576 A JP 2758576A JP S52110038 A JPS52110038 A JP S52110038A
Authority
JP
Japan
Prior art keywords
detection
distinctness
image
focusing
electroconversion
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
JP2758576A
Other languages
Japanese (ja)
Inventor
Yukichi Niwa
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 JP2758576A priority Critical patent/JPS52110038A/en
Publication of JPS52110038A publication Critical patent/JPS52110038A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the reduction of brightness of incident light pencil, and enhance the accuracy of detection by providing a photo-electroconversion element formed on a transparent substrate near the focusing plane of focusing screen of the finder optical system.
COPYRIGHT: (C)1977,JPO&Japio
JP2758576A 1976-03-12 1976-03-12 Detection of distinctness of object image Pending JPS52110038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2758576A JPS52110038A (en) 1976-03-12 1976-03-12 Detection of distinctness of object image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2758576A JPS52110038A (en) 1976-03-12 1976-03-12 Detection of distinctness of object image

Publications (1)

Publication Number Publication Date
JPS52110038A true JPS52110038A (en) 1977-09-14

Family

ID=12225023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2758576A Pending JPS52110038A (en) 1976-03-12 1976-03-12 Detection of distinctness of object image

Country Status (1)

Country Link
JP (1) JPS52110038A (en)

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