JPS63193218U - - Google Patents

Info

Publication number
JPS63193218U
JPS63193218U JP8206387U JP8206387U JPS63193218U JP S63193218 U JPS63193218 U JP S63193218U JP 8206387 U JP8206387 U JP 8206387U JP 8206387 U JP8206387 U JP 8206387U JP S63193218 U JPS63193218 U JP S63193218U
Authority
JP
Japan
Prior art keywords
light
detection
focus error
optical
objective lens
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
JP8206387U
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 JP8206387U priority Critical patent/JPS63193218U/ja
Publication of JPS63193218U publication Critical patent/JPS63193218U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP8206387U 1987-05-28 1987-05-28 Pending JPS63193218U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8206387U JPS63193218U (enrdf_load_stackoverflow) 1987-05-28 1987-05-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8206387U JPS63193218U (enrdf_load_stackoverflow) 1987-05-28 1987-05-28

Publications (1)

Publication Number Publication Date
JPS63193218U true JPS63193218U (enrdf_load_stackoverflow) 1988-12-13

Family

ID=30934377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8206387U Pending JPS63193218U (enrdf_load_stackoverflow) 1987-05-28 1987-05-28

Country Status (1)

Country Link
JP (1) JPS63193218U (enrdf_load_stackoverflow)

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