JPS6432433A - Optical information recording and reproducing device - Google Patents

Optical information recording and reproducing device

Info

Publication number
JPS6432433A
JPS6432433A JP62186640A JP18664087A JPS6432433A JP S6432433 A JPS6432433 A JP S6432433A JP 62186640 A JP62186640 A JP 62186640A JP 18664087 A JP18664087 A JP 18664087A JP S6432433 A JPS6432433 A JP S6432433A
Authority
JP
Japan
Prior art keywords
hole
actuator
light
bobbin
providing
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
JP62186640A
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 JP62186640A priority Critical patent/JPS6432433A/en
Publication of JPS6432433A publication Critical patent/JPS6432433A/en
Pending legal-status Critical Current

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  • Optical Head (AREA)

Abstract

PURPOSE:To prevent exerting of a harmful influence upon operating characteristics by holding an optical system with an optically untransmittable holder, providing a through hole, to the holder, providing a light emitting means fixed in the vicinity of one end of the through hole and providing sensors for receiving the light of a light source via the through hole in the vicinity of the other end part. CONSTITUTION:A bobbin 1 as a movable part of an actuator is turned around a pin 2 by a magnetic coil and a magnet in the direction of an arrow (a) and also moved up and down in the direction of an arrow (b). An objective lens 3 for positional detection is constituted integrally of the bobbin 1. The light of the light source 5 fitted to a non-movable part of the actuator or a head main body is passed through the through hole 4, and the passed light through the hole 4 is received by the bisectional photo sensors 6a and 6b fitted to an actuator cover 8, so that the turning position of the bobbin 1, i.e., the position of the objective lens 3 in a tracking direction is obtained by an amplifier 7. By this method, the exerting of harmful influences upon the operating characteristics of the actuator can be prevented.
JP62186640A 1987-07-28 1987-07-28 Optical information recording and reproducing device Pending JPS6432433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62186640A JPS6432433A (en) 1987-07-28 1987-07-28 Optical information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62186640A JPS6432433A (en) 1987-07-28 1987-07-28 Optical information recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6432433A true JPS6432433A (en) 1989-02-02

Family

ID=16192125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62186640A Pending JPS6432433A (en) 1987-07-28 1987-07-28 Optical information recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6432433A (en)

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