JPS5884632U - 光学ヘツド - Google Patents

光学ヘツド

Info

Publication number
JPS5884632U
JPS5884632U JP18040081U JP18040081U JPS5884632U JP S5884632 U JPS5884632 U JP S5884632U JP 18040081 U JP18040081 U JP 18040081U JP 18040081 U JP18040081 U JP 18040081U JP S5884632 U JPS5884632 U JP S5884632U
Authority
JP
Japan
Prior art keywords
lens
beam splitter
cylindrical lens
semi
convergence
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
JP18040081U
Other languages
English (en)
Japanese (ja)
Other versions
JPS637949Y2 (enrdf_load_stackoverflow
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 JP18040081U priority Critical patent/JPS5884632U/ja
Publication of JPS5884632U publication Critical patent/JPS5884632U/ja
Application granted granted Critical
Publication of JPS637949Y2 publication Critical patent/JPS637949Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP18040081U 1981-12-03 1981-12-03 光学ヘツド Granted JPS5884632U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18040081U JPS5884632U (ja) 1981-12-03 1981-12-03 光学ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18040081U JPS5884632U (ja) 1981-12-03 1981-12-03 光学ヘツド

Publications (2)

Publication Number Publication Date
JPS5884632U true JPS5884632U (ja) 1983-06-08
JPS637949Y2 JPS637949Y2 (enrdf_load_stackoverflow) 1988-03-09

Family

ID=29976956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18040081U Granted JPS5884632U (ja) 1981-12-03 1981-12-03 光学ヘツド

Country Status (1)

Country Link
JP (1) JPS5884632U (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS637949Y2 (enrdf_load_stackoverflow) 1988-03-09

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