JPS6235311A - 光デイスク用レンズ - Google Patents

光デイスク用レンズ

Info

Publication number
JPS6235311A
JPS6235311A JP17542785A JP17542785A JPS6235311A JP S6235311 A JPS6235311 A JP S6235311A JP 17542785 A JP17542785 A JP 17542785A JP 17542785 A JP17542785 A JP 17542785A JP S6235311 A JPS6235311 A JP S6235311A
Authority
JP
Japan
Prior art keywords
lens
lenses
group
aberration
correction
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.)
Granted
Application number
JP17542785A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0143291B2 (OSRAM
Inventor
Takahiro Sugiyama
孝浩 杉山
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP17542785A priority Critical patent/JPS6235311A/ja
Publication of JPS6235311A publication Critical patent/JPS6235311A/ja
Publication of JPH0143291B2 publication Critical patent/JPH0143291B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP17542785A 1985-08-09 1985-08-09 光デイスク用レンズ Granted JPS6235311A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17542785A JPS6235311A (ja) 1985-08-09 1985-08-09 光デイスク用レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17542785A JPS6235311A (ja) 1985-08-09 1985-08-09 光デイスク用レンズ

Publications (2)

Publication Number Publication Date
JPS6235311A true JPS6235311A (ja) 1987-02-16
JPH0143291B2 JPH0143291B2 (OSRAM) 1989-09-20

Family

ID=15995909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17542785A Granted JPS6235311A (ja) 1985-08-09 1985-08-09 光デイスク用レンズ

Country Status (1)

Country Link
JP (1) JPS6235311A (OSRAM)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173809A (en) * 1989-02-28 1992-12-22 Asahi Kogaku Kogyo Kabushiki Kaisha Objective lens system of optical information recording/reproducing apparatus
US5491587A (en) * 1989-02-28 1996-02-13 Asahi Kogaku Kogyo Kabushiki Kaisha Collimating lens for optical system using semiconductor laser
US5638221A (en) * 1989-02-09 1997-06-10 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system of optical information recording/reproducing apparatus
US6788473B2 (en) 2000-12-07 2004-09-07 Samsung Electronics Co., Ltd. Objective lens device for correcting chromatic aberration and optical pickup employing the same
JP2007334009A (ja) * 2006-06-15 2007-12-27 Canon Inc 画像読取装置及び反射ミラーユニット

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5638221A (en) * 1989-02-09 1997-06-10 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system of optical information recording/reproducing apparatus
US5644437A (en) * 1989-02-09 1997-07-01 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system of optical information recording/reproducing apparatus
US5657171A (en) * 1989-02-09 1997-08-12 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system of optical information recording/reproducing apparatus
US5657168A (en) * 1989-02-09 1997-08-12 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system of optical information recording/ reproducing apparatus
US5173809A (en) * 1989-02-28 1992-12-22 Asahi Kogaku Kogyo Kabushiki Kaisha Objective lens system of optical information recording/reproducing apparatus
US5491587A (en) * 1989-02-28 1996-02-13 Asahi Kogaku Kogyo Kabushiki Kaisha Collimating lens for optical system using semiconductor laser
US6788473B2 (en) 2000-12-07 2004-09-07 Samsung Electronics Co., Ltd. Objective lens device for correcting chromatic aberration and optical pickup employing the same
JP2007334009A (ja) * 2006-06-15 2007-12-27 Canon Inc 画像読取装置及び反射ミラーユニット

Also Published As

Publication number Publication date
JPH0143291B2 (OSRAM) 1989-09-20

Similar Documents

Publication Publication Date Title
US5657171A (en) Optical system of optical information recording/reproducing apparatus
KR100361587B1 (ko) 광헤드용 대물렌즈
JPH0217086B2 (OSRAM)
US4610515A (en) Objective lens for an optical disc
US4721373A (en) Lens system for use with an optical disk
US5491587A (en) Collimating lens for optical system using semiconductor laser
JPS6235311A (ja) 光デイスク用レンズ
JPS61215512A (ja) 光学式情報読取装置の対物レンズ
US4684221A (en) Graded refractive index single lens system
JPS59174810A (ja) 対物レンズ
GB2168166A (en) Graded refractive index lens system
JPH032811A (ja) 光ディスク用対物レンズ
JPH0140325B2 (OSRAM)
US4240704A (en) Objective for video disks
US4668055A (en) Lens for an optical recording/reproducing apparatus and optical recording/reproducing apparatus using same
JPS5872114A (ja) 光デイスク記録再生用集光レンズ
JPH02235010A (ja) ガラスモールド非球面単レンズ
JPH02153310A (ja) 光学式記録再生装置用レンズ
JPH0143290B2 (OSRAM)
JPS5848010A (ja) ビデオディスク用対物レンズ
JPH0534642A (ja) コリメートレンズ
JPS60247613A (ja) 高倍率顕微鏡対物レンズ
JP2511275B2 (ja) 光情報媒体の記録・再生用光学系
JPS6187115A (ja) 光デイスク用対物レンズのリレ−レンズ
JP2511279B2 (ja) 光情報媒体の記録・再生用光学系