JPS61177408A - 光情報記録媒体の記録再生用対物レンズ - Google Patents

光情報記録媒体の記録再生用対物レンズ

Info

Publication number
JPS61177408A
JPS61177408A JP1893185A JP1893185A JPS61177408A JP S61177408 A JPS61177408 A JP S61177408A JP 1893185 A JP1893185 A JP 1893185A JP 1893185 A JP1893185 A JP 1893185A JP S61177408 A JPS61177408 A JP S61177408A
Authority
JP
Japan
Prior art keywords
lens
light source
objective lens
source side
aspherical
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
JP1893185A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0462564B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Norikazu Arai
則一 荒井
Tomoko Wakabayashi
若林　智子
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP1893185A priority Critical patent/JPS61177408A/ja
Publication of JPS61177408A publication Critical patent/JPS61177408A/ja
Publication of JPH0462564B2 publication Critical patent/JPH0462564B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP1893185A 1985-02-01 1985-02-01 光情報記録媒体の記録再生用対物レンズ Granted JPS61177408A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1893185A JPS61177408A (ja) 1985-02-01 1985-02-01 光情報記録媒体の記録再生用対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1893185A JPS61177408A (ja) 1985-02-01 1985-02-01 光情報記録媒体の記録再生用対物レンズ

Publications (2)

Publication Number Publication Date
JPS61177408A true JPS61177408A (ja) 1986-08-09
JPH0462564B2 JPH0462564B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-10-06

Family

ID=11985380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1893185A Granted JPS61177408A (ja) 1985-02-01 1985-02-01 光情報記録媒体の記録再生用対物レンズ

Country Status (1)

Country Link
JP (1) JPS61177408A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* 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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334037B1 (en) 2000-02-18 2001-12-25 Toshiba Tec Kabushiki Kaisha Image forming apparatus
US6289182B1 (en) 2000-02-18 2001-09-11 Toshiba Tec Kabushiki Kaisha Method and apparatus for discriminating toner bottle types, stirring toner, and detecting the amount of remaining toner

Cited By (2)

* 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

Also Published As

Publication number Publication date
JPH0462564B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-10-06

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