TW341702B - Optical pickup device - Google Patents

Optical pickup device

Info

Publication number
TW341702B
TW341702B TW086114206A TW86114206A TW341702B TW 341702 B TW341702 B TW 341702B TW 086114206 A TW086114206 A TW 086114206A TW 86114206 A TW86114206 A TW 86114206A TW 341702 B TW341702 B TW 341702B
Authority
TW
Taiwan
Prior art keywords
pickup device
optical pickup
kinds
beam path
light beam
Prior art date
Application number
TW086114206A
Other languages
Chinese (zh)
Inventor
Masamura Fukakusa
Ichi Moriyasu
Hiroshi Tanikawa
Haruhiko Kawano
Mikio Tomieaki
Original Assignee
Matsushita Electric Ind 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
Priority claimed from JP8260391A external-priority patent/JPH10106016A/en
Priority claimed from JP8280481A external-priority patent/JPH10124912A/en
Priority claimed from JP9012169A external-priority patent/JPH10208283A/en
Priority claimed from JP9031621A external-priority patent/JPH10228666A/en
Priority claimed from JP9037584A external-priority patent/JPH10241185A/en
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Application granted granted Critical
Publication of TW341702B publication Critical patent/TW341702B/en

Links

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  • Optical Head (AREA)

Abstract

An optical pickup device which has a single light beam path for common use in treating or passing either of a plurality of kinds of light beams for respective recording densities and/or recording-medium-thicknesses different from each other, in other words, at least one or either of the plurality of kinds of light beams is introduced into the common single light beam path which may includes a single quarter-wave plate and/or single collimator and/or single objective.
TW086114206A 1996-10-01 1997-09-30 Optical pickup device TW341702B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8260391A JPH10106016A (en) 1996-10-01 1996-10-01 Optical pickup
JP8280481A JPH10124912A (en) 1996-10-23 1996-10-23 Optical pickup
JP9012169A JPH10208283A (en) 1997-01-27 1997-01-27 Optical pickup
JP9031621A JPH10228666A (en) 1997-02-17 1997-02-17 Optical pickup
JP9037584A JPH10241185A (en) 1997-02-21 1997-02-21 Optical pickup

Publications (1)

Publication Number Publication Date
TW341702B true TW341702B (en) 1998-10-01

Family

ID=58263535

Family Applications (2)

Application Number Title Priority Date Filing Date
TW086114206A TW341702B (en) 1996-10-01 1997-09-30 Optical pickup device
TW086114207A TW341703B (en) 1996-10-01 1997-09-30 Optical pickup device

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW086114207A TW341703B (en) 1996-10-01 1997-09-30 Optical pickup device

Country Status (1)

Country Link
TW (2) TW341702B (en)

Also Published As

Publication number Publication date
TW341703B (en) 1998-10-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees