JPS52110030A - Detector for distinctness of object image - Google Patents

Detector for distinctness of object image

Info

Publication number
JPS52110030A
JPS52110030A JP2757676A JP2757676A JPS52110030A JP S52110030 A JPS52110030 A JP S52110030A JP 2757676 A JP2757676 A JP 2757676A JP 2757676 A JP2757676 A JP 2757676A JP S52110030 A JPS52110030 A JP S52110030A
Authority
JP
Japan
Prior art keywords
distinctness
detector
image
detectiion
pertinent
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
JP2757676A
Other languages
Japanese (ja)
Inventor
Mitsuya Hosoe
Seiichi Matsumoto
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 JP2757676A priority Critical patent/JPS52110030A/en
Publication of JPS52110030A publication Critical patent/JPS52110030A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable the detectiion of pertinent focusing in the camera by warning at the time of reduction of level of brightness signal of an object to be detected.
COPYRIGHT: (C)1977,JPO&Japio
JP2757676A 1976-03-12 1976-03-12 Detector for distinctness of object image Pending JPS52110030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2757676A JPS52110030A (en) 1976-03-12 1976-03-12 Detector for distinctness of object image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2757676A JPS52110030A (en) 1976-03-12 1976-03-12 Detector for distinctness of object image

Publications (1)

Publication Number Publication Date
JPS52110030A true JPS52110030A (en) 1977-09-14

Family

ID=12224806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2757676A Pending JPS52110030A (en) 1976-03-12 1976-03-12 Detector for distinctness of object image

Country Status (1)

Country Link
JP (1) JPS52110030A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5574505A (en) * 1978-11-30 1980-06-05 Canon Inc Focus position detecting system of image
JPS5618928U (en) * 1979-07-23 1981-02-19
JPS5651723A (en) * 1979-10-03 1981-05-09 Olympus Optical Co Ltd Focusing display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5574505A (en) * 1978-11-30 1980-06-05 Canon Inc Focus position detecting system of image
JPS5618928U (en) * 1979-07-23 1981-02-19
JPS5651723A (en) * 1979-10-03 1981-05-09 Olympus Optical Co Ltd Focusing display device

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