JPS6435735A - Optical head in optical disk recording and reproducing device - Google Patents

Optical head in optical disk recording and reproducing device

Info

Publication number
JPS6435735A
JPS6435735A JP62190380A JP19038087A JPS6435735A JP S6435735 A JPS6435735 A JP S6435735A JP 62190380 A JP62190380 A JP 62190380A JP 19038087 A JP19038087 A JP 19038087A JP S6435735 A JPS6435735 A JP S6435735A
Authority
JP
Japan
Prior art keywords
light
optical disk
optical system
mobile
optical
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
JP62190380A
Other languages
Japanese (ja)
Inventor
Mitsutoshi Iko
Koichiro Tsuchiho
Kazuyuki Yoshida
Toshihiko Ueda
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP62190380A priority Critical patent/JPS6435735A/en
Priority to US07/226,435 priority patent/US4959824A/en
Publication of JPS6435735A publication Critical patent/JPS6435735A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)

Abstract

PURPOSE:To reduce a weight at the time of movement and to shorten an access time by constitution a mobile optical system only of an objective lens and a bent mirror. CONSTITUTION:The mobile optical system 60 is formed of the objective lens 62 for injecting a light to an optical disk 100 and the bent mirror 61 and a fixed optical system 40 is constituted of a laser light source 41, a light separating means 42 for separating an injection light from this laser light source 41 and a reflected light from the optical disk, a focussing driving means 45 for controlling a focussing to the optical disk 100 of the injection light, a mirror 46 for injecting light beam to the moving optical system 60 side and rotating interlockingly with the movement of a mobile member and a photodetector 48 for receiving the reflected light from the optical disk 100 obtained by the light separating means. Thereby, the weight of the mobile optical system 60 is reduced and the access time for recording and reproducing can be shortened.
JP62190380A 1987-07-31 1987-07-31 Optical head in optical disk recording and reproducing device Pending JPS6435735A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62190380A JPS6435735A (en) 1987-07-31 1987-07-31 Optical head in optical disk recording and reproducing device
US07/226,435 US4959824A (en) 1987-07-31 1988-07-29 Optical information record/pickup head assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190380A JPS6435735A (en) 1987-07-31 1987-07-31 Optical head in optical disk recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6435735A true JPS6435735A (en) 1989-02-06

Family

ID=16257208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190380A Pending JPS6435735A (en) 1987-07-31 1987-07-31 Optical head in optical disk recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6435735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341820A2 (en) * 1988-05-12 1989-11-15 Digital Equipment Corporation A low mass optical head system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341820A2 (en) * 1988-05-12 1989-11-15 Digital Equipment Corporation A low mass optical head system
EP0341820A3 (en) * 1988-05-12 1991-09-25 Digital Equipment Corporation A low mass optical head system

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