JPS58140522U - 焦点ずれ検出装置 - Google Patents

焦点ずれ検出装置

Info

Publication number
JPS58140522U
JPS58140522U JP3440782U JP3440782U JPS58140522U JP S58140522 U JPS58140522 U JP S58140522U JP 3440782 U JP3440782 U JP 3440782U JP 3440782 U JP3440782 U JP 3440782U JP S58140522 U JPS58140522 U JP S58140522U
Authority
JP
Japan
Prior art keywords
light
irradiated object
pair
lens system
detection device
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
JP3440782U
Other languages
English (en)
Japanese (ja)
Other versions
JPS637950Y2 (enExample
Inventor
雅彦 藤原
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP3440782U priority Critical patent/JPS58140522U/ja
Publication of JPS58140522U publication Critical patent/JPS58140522U/ja
Application granted granted Critical
Publication of JPS637950Y2 publication Critical patent/JPS637950Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP3440782U 1982-03-11 1982-03-11 焦点ずれ検出装置 Granted JPS58140522U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3440782U JPS58140522U (ja) 1982-03-11 1982-03-11 焦点ずれ検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3440782U JPS58140522U (ja) 1982-03-11 1982-03-11 焦点ずれ検出装置

Publications (2)

Publication Number Publication Date
JPS58140522U true JPS58140522U (ja) 1983-09-21
JPS637950Y2 JPS637950Y2 (enExample) 1988-03-09

Family

ID=30045890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3440782U Granted JPS58140522U (ja) 1982-03-11 1982-03-11 焦点ずれ検出装置

Country Status (1)

Country Link
JP (1) JPS58140522U (enExample)

Also Published As

Publication number Publication date
JPS637950Y2 (enExample) 1988-03-09

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