JPS6235310A - 光デイスク用レンズ - Google Patents

光デイスク用レンズ

Info

Publication number
JPS6235310A
JPS6235310A JP17542685A JP17542685A JPS6235310A JP S6235310 A JPS6235310 A JP S6235310A JP 17542685 A JP17542685 A JP 17542685A JP 17542685 A JP17542685 A JP 17542685A JP S6235310 A JPS6235310 A JP S6235310A
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.)
Granted
Application number
JP17542685A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0143290B2 (enrdf_load_stackoverflow
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 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 true JPS6235310A (ja) 1987-02-16
JPH0143290B2 JPH0143290B2 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995710A (en) * 1989-05-31 1991-02-26 Ricoh Company, Ltd. Objective lens for optical disk
US5214537A (en) * 1989-04-11 1993-05-25 Asahi Kogaku Kogyo Kabushiki Kaisha Chromatic aberration correcting objective lens system for information recording/reproducing apparatus
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214537A (en) * 1989-04-11 1993-05-25 Asahi Kogaku Kogyo Kabushiki Kaisha Chromatic aberration correcting objective lens system for information recording/reproducing apparatus
US4995710A (en) * 1989-05-31 1991-02-26 Ricoh Company, Ltd. Objective lens for optical disk
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
JPH0143290B2 (enrdf_load_stackoverflow) 1989-09-20

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