JPH0718021Y2 - 光ディスクの露光装置 - Google Patents

光ディスクの露光装置

Info

Publication number
JPH0718021Y2
JPH0718021Y2 JP1989142589U JP14258989U JPH0718021Y2 JP H0718021 Y2 JPH0718021 Y2 JP H0718021Y2 JP 1989142589 U JP1989142589 U JP 1989142589U JP 14258989 U JP14258989 U JP 14258989U JP H0718021 Y2 JPH0718021 Y2 JP H0718021Y2
Authority
JP
Japan
Prior art keywords
aperture
spatial filter
laser
diameter
light
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
JP1989142589U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0384919U (enrdf_load_stackoverflow
Inventor
清二 土肥
Original Assignee
日本コロムビア株式会社
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 日本コロムビア株式会社 filed Critical 日本コロムビア株式会社
Priority to JP1989142589U priority Critical patent/JPH0718021Y2/ja
Publication of JPH0384919U publication Critical patent/JPH0384919U/ja
Application granted granted Critical
Publication of JPH0718021Y2 publication Critical patent/JPH0718021Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP1989142589U 1989-12-09 1989-12-09 光ディスクの露光装置 Expired - Lifetime JPH0718021Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989142589U JPH0718021Y2 (ja) 1989-12-09 1989-12-09 光ディスクの露光装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989142589U JPH0718021Y2 (ja) 1989-12-09 1989-12-09 光ディスクの露光装置

Publications (2)

Publication Number Publication Date
JPH0384919U JPH0384919U (enrdf_load_stackoverflow) 1991-08-28
JPH0718021Y2 true JPH0718021Y2 (ja) 1995-04-26

Family

ID=31689413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989142589U Expired - Lifetime JPH0718021Y2 (ja) 1989-12-09 1989-12-09 光ディスクの露光装置

Country Status (1)

Country Link
JP (1) JPH0718021Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0384919U (enrdf_load_stackoverflow) 1991-08-28

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