JPH0431087B2 - - Google Patents

Info

Publication number
JPH0431087B2
JPH0431087B2 JP59087854A JP8785484A JPH0431087B2 JP H0431087 B2 JPH0431087 B2 JP H0431087B2 JP 59087854 A JP59087854 A JP 59087854A JP 8785484 A JP8785484 A JP 8785484A JP H0431087 B2 JPH0431087 B2 JP H0431087B2
Authority
JP
Japan
Prior art keywords
lens
group
focal length
condition
recording
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
JP59087854A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60232519A (ja
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 filed Critical
Priority to JP8785484A priority Critical patent/JPS60232519A/ja
Publication of JPS60232519A publication Critical patent/JPS60232519A/ja
Publication of JPH0431087B2 publication Critical patent/JPH0431087B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP8785484A 1984-05-02 1984-05-02 光情報記録・再生用対物レンズ Granted JPS60232519A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8785484A JPS60232519A (ja) 1984-05-02 1984-05-02 光情報記録・再生用対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8785484A JPS60232519A (ja) 1984-05-02 1984-05-02 光情報記録・再生用対物レンズ

Publications (2)

Publication Number Publication Date
JPS60232519A JPS60232519A (ja) 1985-11-19
JPH0431087B2 true JPH0431087B2 (enrdf_load_stackoverflow) 1992-05-25

Family

ID=13926468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8785484A Granted JPS60232519A (ja) 1984-05-02 1984-05-02 光情報記録・再生用対物レンズ

Country Status (1)

Country Link
JP (1) JPS60232519A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927247A (en) * 1988-05-13 1990-05-22 Matsushita Electric Industrial Co., Ltd. Objective lens for optical disk system and optical head using the same
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
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919087U (enrdf_load_stackoverflow) * 1972-05-27 1974-02-18
JPS5334522A (en) * 1976-09-10 1978-03-31 Minolta Camera Co Ltd Soft focus lens

Also Published As

Publication number Publication date
JPS60232519A (ja) 1985-11-19

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