JPS6449132A - Optical information recording and reproducing device - Google Patents

Optical information recording and reproducing device

Info

Publication number
JPS6449132A
JPS6449132A JP62204979A JP20497987A JPS6449132A JP S6449132 A JPS6449132 A JP S6449132A JP 62204979 A JP62204979 A JP 62204979A JP 20497987 A JP20497987 A JP 20497987A JP S6449132 A JPS6449132 A JP S6449132A
Authority
JP
Japan
Prior art keywords
actuator
bobbin
movable part
objective lens
information recording
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
JP62204979A
Other languages
Japanese (ja)
Inventor
Hideaki Yano
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62204979A priority Critical patent/JPS6449132A/en
Publication of JPS6449132A publication Critical patent/JPS6449132A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To detect the position of an objective lens without exerting bad influence upon actuator operation characteristics by means of a simple constitution by fitting a light reflecting means to a movable part of an actuator and fitting photodetecting sensors to its non-movable part. CONSTITUTION:A mirror part 4 is fitted on a bobbin 1 to be the movable part of the actuator and two-divided optical sensors 6a, 6b for detecting reflected light from the mirror part 4 are arranged on the non-movable part of the actuator. An optical beam 5 from a light source is reflected by the mirror part 4, the reflected light is detected by the optical sensors 6a, 6b to obtain the rotating position of the bobbin 1, i.e. the tracking direction of the objective lens 3, from an amplifier 7. Since no influence is exerted upon the weight of the bobbin 1 and an optical sensor lead line or the like from the bobbin 1 can be omitted, the position of the objective lens can be detected by the simple constitution without exerting bad influence upon the operating characteristics of the actuator.
JP62204979A 1987-08-20 1987-08-20 Optical information recording and reproducing device Pending JPS6449132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204979A JPS6449132A (en) 1987-08-20 1987-08-20 Optical information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204979A JPS6449132A (en) 1987-08-20 1987-08-20 Optical information recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6449132A true JPS6449132A (en) 1989-02-23

Family

ID=16499460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204979A Pending JPS6449132A (en) 1987-08-20 1987-08-20 Optical information recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6449132A (en)

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