JPS5232324A - Photoelectric detecting device for in or out of focus in the optical s ystem - Google Patents

Photoelectric detecting device for in or out of focus in the optical s ystem

Info

Publication number
JPS5232324A
JPS5232324A JP10800875A JP10800875A JPS5232324A JP S5232324 A JPS5232324 A JP S5232324A JP 10800875 A JP10800875 A JP 10800875A JP 10800875 A JP10800875 A JP 10800875A JP S5232324 A JPS5232324 A JP S5232324A
Authority
JP
Japan
Prior art keywords
focus
ystem
optical
photoelectric detecting
photoelectric
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.)
Granted
Application number
JP10800875A
Other languages
Japanese (ja)
Other versions
JPS5613284B2 (en
Inventor
Tsunemi Gonda
Original Assignee
Nippon Kogaku Kk <Nikon>
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 Nippon Kogaku Kk <Nikon> filed Critical Nippon Kogaku Kk <Nikon>
Priority to JP10800875A priority Critical patent/JPS5613284B2/ja
Publication of JPS5232324A publication Critical patent/JPS5232324A/en
Publication of JPS5613284B2 publication Critical patent/JPS5613284B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To detect in or out of focus with a high accuracy by fixing a chart plate in which the arranging directions of patterns are changed, and scanning the image of an object with a rotatable prism.
COPYRIGHT: (C)1977,JPO&Japio
JP10800875A 1975-09-08 1975-09-08 Expired JPS5613284B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10800875A JPS5613284B2 (en) 1975-09-08 1975-09-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10800875A JPS5613284B2 (en) 1975-09-08 1975-09-08

Publications (2)

Publication Number Publication Date
JPS5232324A true JPS5232324A (en) 1977-03-11
JPS5613284B2 JPS5613284B2 (en) 1981-03-27

Family

ID=14473640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10800875A Expired JPS5613284B2 (en) 1975-09-08 1975-09-08

Country Status (1)

Country Link
JP (1) JPS5613284B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5642205A (en) * 1979-09-17 1981-04-20 Nippon Kogaku Kk <Nikon> Focus detecting method
JPS62262810A (en) * 1986-05-01 1987-11-14 Consiglio Nazionale Ricerche Automatically focusing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5642205A (en) * 1979-09-17 1981-04-20 Nippon Kogaku Kk <Nikon> Focus detecting method
JPH0141962B2 (en) * 1979-09-17 1989-09-08 Nikon Kk
JPS62262810A (en) * 1986-05-01 1987-11-14 Consiglio Nazionale Ricerche Automatically focusing apparatus

Also Published As

Publication number Publication date
JPS5613284B2 (en) 1981-03-27

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