JPH0810852Y2 - 光ヘッド - Google Patents

光ヘッド

Info

Publication number
JPH0810852Y2
JPH0810852Y2 JP1989040407U JP4040789U JPH0810852Y2 JP H0810852 Y2 JPH0810852 Y2 JP H0810852Y2 JP 1989040407 U JP1989040407 U JP 1989040407U JP 4040789 U JP4040789 U JP 4040789U JP H0810852 Y2 JPH0810852 Y2 JP H0810852Y2
Authority
JP
Japan
Prior art keywords
light
optical head
shielding band
disc
bell crank
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
JP1989040407U
Other languages
English (en)
Japanese (ja)
Other versions
JPH02132325U (en]
Inventor
勉 松井
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP1989040407U priority Critical patent/JPH0810852Y2/ja
Publication of JPH02132325U publication Critical patent/JPH02132325U/ja
Application granted granted Critical
Publication of JPH0810852Y2 publication Critical patent/JPH0810852Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
JP1989040407U 1989-04-05 1989-04-05 光ヘッド Expired - Lifetime JPH0810852Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989040407U JPH0810852Y2 (ja) 1989-04-05 1989-04-05 光ヘッド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989040407U JPH0810852Y2 (ja) 1989-04-05 1989-04-05 光ヘッド

Publications (2)

Publication Number Publication Date
JPH02132325U JPH02132325U (en]) 1990-11-02
JPH0810852Y2 true JPH0810852Y2 (ja) 1996-03-29

Family

ID=31550169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989040407U Expired - Lifetime JPH0810852Y2 (ja) 1989-04-05 1989-04-05 光ヘッド

Country Status (1)

Country Link
JP (1) JPH0810852Y2 (en])

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56116004A (en) * 1980-02-20 1981-09-11 Olympus Optical Co Ltd Lens for video disk
JPH0810494B2 (ja) * 1986-04-07 1996-01-31 オリンパス光学工業株式会社 光学式ピツクアツプ

Also Published As

Publication number Publication date
JPH02132325U (en]) 1990-11-02

Similar Documents

Publication Publication Date Title
EP1215666B1 (en) Optical pickup device
KR100258927B1 (ko) 다중 트랙 스캔 가능한 호환형 광픽업장치
US4460990A (en) Apparatus for reading an optical record carrier
US4807213A (en) Laser drum for use in recording and reproducing information on optical tapes
KR19980070866A (ko) 광 헤드
JP4726254B2 (ja) 光ピックアップ及び情報機器
KR100238266B1 (ko) 광학장치
US5870369A (en) Objective lens device including an objective lens and a transparent member having two light control portions and optical pickup using the objective lens device
EP0354028B1 (en) Radiation scanning apparatus
KR100644566B1 (ko) 고밀도 광집속을 위한 대물렌즈 및 이를 채용한 광픽업장치
JPH0810852Y2 (ja) 光ヘッド
US4835761A (en) Signal to noise ratio of optical head apparatus employing semiconductor laser beam source
KR960000269B1 (ko) 광헤드
JPH0834012B2 (ja) 光ヘッド装置及び情報記録再生方法
JPH0291829A (ja) 光ヘッド装置
US6025953A (en) Annular shutter mirror
JP3430044B2 (ja) 狭トラック光ディスクのための光ピックアップ
JPH0954971A (ja) 光学ピックアップおよび再生装置
JP2720491B2 (ja) 光ヘッド装置
JP2542440Y2 (ja) 超解像光ヘッド
KR0115161Y1 (ko) 광테이프의 기록/재생장치
JPS61233445A (ja) 光ピツクアツプ
JPS5940327A (ja) 光学式デイスク装置
JP2788345B2 (ja) 光ヘッド
JP2764752B2 (ja) 情報蓄積装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term