JPH0140325B2 - - Google Patents

Info

Publication number
JPH0140325B2
JPH0140325B2 JP61154500A JP15450086A JPH0140325B2 JP H0140325 B2 JPH0140325 B2 JP H0140325B2 JP 61154500 A JP61154500 A JP 61154500A JP 15450086 A JP15450086 A JP 15450086A JP H0140325 B2 JPH0140325 B2 JP H0140325B2
Authority
JP
Japan
Prior art keywords
lens
group
positive
focal length
cemented
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
Application number
JP61154500A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6310118A (ja
Inventor
Takahiro Sugyama
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 JP15450086A priority Critical patent/JPS6310118A/ja
Publication of JPS6310118A publication Critical patent/JPS6310118A/ja
Publication of JPH0140325B2 publication Critical patent/JPH0140325B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP15450086A 1986-07-01 1986-07-01 光デイスク用対物レンズ Granted JPS6310118A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15450086A JPS6310118A (ja) 1986-07-01 1986-07-01 光デイスク用対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15450086A JPS6310118A (ja) 1986-07-01 1986-07-01 光デイスク用対物レンズ

Publications (2)

Publication Number Publication Date
JPS6310118A JPS6310118A (ja) 1988-01-16
JPH0140325B2 true JPH0140325B2 (enrdf_load_stackoverflow) 1989-08-28

Family

ID=15585600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15450086A Granted JPS6310118A (ja) 1986-07-01 1986-07-01 光デイスク用対物レンズ

Country Status (1)

Country Link
JP (1) JPS6310118A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01284816A (ja) * 1988-05-12 1989-11-16 Olympus Optical Co Ltd 光ピックアップ用対物レンズ
FR2642883B1 (enrdf_load_stackoverflow) * 1989-02-09 1995-06-02 Asahi Optical Co Ltd
US5491587A (en) * 1989-02-28 1996-02-13 Asahi Kogaku Kogyo Kabushiki Kaisha Collimating lens for optical system using semiconductor laser
JP2902435B2 (ja) * 1989-02-28 1999-06-07 旭光学工業株式会社 光情報記録再生装置用対物レンズ系
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
JP2003084196A (ja) * 2001-07-04 2003-03-19 Konica Corp 対物レンズ、光ピックアップ装置及び記録・再生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118557A (en) * 1974-07-22 1976-02-14 Olympus Optical Co Bideo deisukuyotaibutsurenzu
JPS6049289B2 (ja) * 1978-06-26 1985-11-01 オリンパス光学工業株式会社 ビデオデスク用の集光レンズ
JPS6191612A (ja) * 1984-10-12 1986-05-09 Tokinaa Kogaku Kk 光デイスク用対物レンズ

Also Published As

Publication number Publication date
JPS6310118A (ja) 1988-01-16

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