JPH0143290B2 - - Google Patents

Info

Publication number
JPH0143290B2
JPH0143290B2 JP17542685A JP17542685A JPH0143290B2 JP H0143290 B2 JPH0143290 B2 JP H0143290B2 JP 17542685 A JP17542685 A JP 17542685A JP 17542685 A JP17542685 A JP 17542685A JP H0143290 B2 JPH0143290 B2 JP H0143290B2
Authority
JP
Japan
Prior art keywords
lens
group
negative
positive
light source
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
JP17542685A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6235310A (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 JP17542685A priority Critical patent/JPS6235310A/ja
Publication of JPS6235310A publication Critical patent/JPS6235310A/ja
Publication of JPH0143290B2 publication Critical patent/JPH0143290B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP17542685A 1985-08-09 1985-08-09 光デイスク用レンズ Granted JPS6235310A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17542685A JPS6235310A (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
JP17542685A JPS6235310A (ja) 1985-08-09 1985-08-09 光デイスク用レンズ

Publications (2)

Publication Number Publication Date
JPS6235310A JPS6235310A (ja) 1987-02-16
JPH0143290B2 true JPH0143290B2 (cs) 1989-09-20

Family

ID=15995891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17542685A Granted JPS6235310A (ja) 1985-08-09 1985-08-09 光デイスク用レンズ

Country Status (1)

Country Link
JP (1) JPS6235310A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02269303A (ja) * 1989-04-11 1990-11-02 Asahi Optical Co Ltd 光ディスク用色収差補正レンズ
JP2784041B2 (ja) * 1989-05-31 1998-08-06 株式会社リコー 光ディスク用対物レンズ
JP2007148138A (ja) * 2005-11-29 2007-06-14 Kyocera Corp 撮像レンズ、光学モジュール、および携帯端末

Also Published As

Publication number Publication date
JPS6235310A (ja) 1987-02-16

Similar Documents

Publication Publication Date Title
JPH0217086B2 (cs)
JPH087329B2 (ja) 光情報の記録再生用光学系
JPS6327685B2 (cs)
JPS58219511A (ja) 光デイスク用レンズ
JP2784041B2 (ja) 光ディスク用対物レンズ
JPH0143290B2 (cs)
JPH0143291B2 (cs)
JPH045362B2 (cs)
JPH0348487B2 (cs)
JPH0416763B2 (cs)
JPH0248882B2 (cs)
JPH0140325B2 (cs)
US4240704A (en) Objective for video disks
JPS62217214A (ja) 光デイスク用レンズ
JPS6049287B2 (ja) ビデオデイスク用再生レンズ
JPH0431087B2 (cs)
JP3033914B2 (ja) 光ディスク用対物レンズ
JPS633284B2 (cs)
JP2511275B2 (ja) 光情報媒体の記録・再生用光学系
JPS59140414A (ja) 光デイスク用対物レンズ
JPS6131447B2 (cs)
JPS6111721A (ja) コリメ−トレンズ
JPH01130115A (ja) レーザービーム用レンズ系
JPH0251487B2 (cs)
JP2511279B2 (ja) 光情報媒体の記録・再生用光学系