JPH0546620B2 - - Google Patents

Info

Publication number
JPH0546620B2
JPH0546620B2 JP60124471A JP12447185A JPH0546620B2 JP H0546620 B2 JPH0546620 B2 JP H0546620B2 JP 60124471 A JP60124471 A JP 60124471A JP 12447185 A JP12447185 A JP 12447185A JP H0546620 B2 JPH0546620 B2 JP H0546620B2
Authority
JP
Japan
Prior art keywords
light
detection element
split photodetector
objective lens
error signal
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
JP60124471A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61283036A (ja
Inventor
Hideki Aiko
Tooru Nakamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP60124471A priority Critical patent/JPS61283036A/ja
Publication of JPS61283036A publication Critical patent/JPS61283036A/ja
Publication of JPH0546620B2 publication Critical patent/JPH0546620B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP60124471A 1985-06-07 1985-06-07 光学式記録再生装置 Granted JPS61283036A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60124471A JPS61283036A (ja) 1985-06-07 1985-06-07 光学式記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60124471A JPS61283036A (ja) 1985-06-07 1985-06-07 光学式記録再生装置

Publications (2)

Publication Number Publication Date
JPS61283036A JPS61283036A (ja) 1986-12-13
JPH0546620B2 true JPH0546620B2 (OSRAM) 1993-07-14

Family

ID=14886337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60124471A Granted JPS61283036A (ja) 1985-06-07 1985-06-07 光学式記録再生装置

Country Status (1)

Country Link
JP (1) JPS61283036A (OSRAM)

Also Published As

Publication number Publication date
JPS61283036A (ja) 1986-12-13

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