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
Links
- 230000003287 optical effect Effects 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 6
- 230000004075 alteration Effects 0.000 description 34
- 238000010586 diagram Methods 0.000 description 8
- 210000001747 pupil Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 206010010071 Coma Diseases 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Lenses (AREA)
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 (zh) | 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 (zh) |
Families Citing this family (5)
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 (zh) * | 1989-02-09 | 1995-06-02 | Asahi Optical Co Ltd | |
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 |
US5491587A (en) * | 1989-02-28 | 1996-02-13 | Asahi Kogaku Kogyo Kabushiki Kaisha | Collimating lens for optical system using semiconductor laser |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118557A (en) * | 1974-07-22 | 1976-02-14 | Olympus Optical Co | Bideo deisukuyotaibutsurenzu |
JPS554068A (en) * | 1978-06-26 | 1980-01-12 | Olympus Optical Co Ltd | Focusing lens for video disc |
JPS6191612A (ja) * | 1984-10-12 | 1986-05-09 | Tokinaa Kogaku Kk | 光デイスク用対物レンズ |
-
1986
- 1986-07-01 JP JP15450086A patent/JPS6310118A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118557A (en) * | 1974-07-22 | 1976-02-14 | Olympus Optical Co | Bideo deisukuyotaibutsurenzu |
JPS554068A (en) * | 1978-06-26 | 1980-01-12 | Olympus Optical Co Ltd | Focusing lens for video disc |
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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