JPH02144122U - - Google Patents

Info

Publication number
JPH02144122U
JPH02144122U JP5104189U JP5104189U JPH02144122U JP H02144122 U JPH02144122 U JP H02144122U JP 5104189 U JP5104189 U JP 5104189U JP 5104189 U JP5104189 U JP 5104189U JP H02144122 U JPH02144122 U JP H02144122U
Authority
JP
Japan
Prior art keywords
beams
detection
recording medium
diffraction
condensing
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
JP5104189U
Other languages
English (en)
Japanese (ja)
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 JP5104189U priority Critical patent/JPH02144122U/ja
Publication of JPH02144122U publication Critical patent/JPH02144122U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP5104189U 1989-04-28 1989-04-28 Pending JPH02144122U (US07943777-20110517-C00090.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5104189U JPH02144122U (US07943777-20110517-C00090.png) 1989-04-28 1989-04-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5104189U JPH02144122U (US07943777-20110517-C00090.png) 1989-04-28 1989-04-28

Publications (1)

Publication Number Publication Date
JPH02144122U true JPH02144122U (US07943777-20110517-C00090.png) 1990-12-06

Family

ID=31570121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5104189U Pending JPH02144122U (US07943777-20110517-C00090.png) 1989-04-28 1989-04-28

Country Status (1)

Country Link
JP (1) JPH02144122U (US07943777-20110517-C00090.png)

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