JPH0519852Y2 - - Google Patents

Info

Publication number
JPH0519852Y2
JPH0519852Y2 JP7487685U JP7487685U JPH0519852Y2 JP H0519852 Y2 JPH0519852 Y2 JP H0519852Y2 JP 7487685 U JP7487685 U JP 7487685U JP 7487685 U JP7487685 U JP 7487685U JP H0519852 Y2 JPH0519852 Y2 JP H0519852Y2
Authority
JP
Japan
Prior art keywords
light
order diffracted
receiving element
diffraction
disk
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.)
Expired - Lifetime
Application number
JP7487685U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61189416U (pm
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 filed Critical
Priority to JP7487685U priority Critical patent/JPH0519852Y2/ja
Publication of JPS61189416U publication Critical patent/JPS61189416U/ja
Application granted granted Critical
Publication of JPH0519852Y2 publication Critical patent/JPH0519852Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP7487685U 1985-05-20 1985-05-20 Expired - Lifetime JPH0519852Y2 (pm)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7487685U JPH0519852Y2 (pm) 1985-05-20 1985-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7487685U JPH0519852Y2 (pm) 1985-05-20 1985-05-20

Publications (2)

Publication Number Publication Date
JPS61189416U JPS61189416U (pm) 1986-11-26
JPH0519852Y2 true JPH0519852Y2 (pm) 1993-05-25

Family

ID=30615574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7487685U Expired - Lifetime JPH0519852Y2 (pm) 1985-05-20 1985-05-20

Country Status (1)

Country Link
JP (1) JPH0519852Y2 (pm)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2766348B2 (ja) * 1989-11-02 1998-06-18 オリンパス光学工業株式会社 光学ヘッド

Also Published As

Publication number Publication date
JPS61189416U (pm) 1986-11-26

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