JPS6331766B2 - - Google Patents
Info
- Publication number
- JPS6331766B2 JPS6331766B2 JP59240280A JP24028084A JPS6331766B2 JP S6331766 B2 JPS6331766 B2 JP S6331766B2 JP 59240280 A JP59240280 A JP 59240280A JP 24028084 A JP24028084 A JP 24028084A JP S6331766 B2 JPS6331766 B2 JP S6331766B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- power
- disk
- semiconductor laser
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 239000006059 cover glass Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24028084A JPS61118708A (ja) | 1984-11-14 | 1984-11-14 | 光デイスク用レンズ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24028084A JPS61118708A (ja) | 1984-11-14 | 1984-11-14 | 光デイスク用レンズ |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1112514A Division JPH02118508A (ja) | 1989-05-01 | 1989-05-01 | 光ディスク用レンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61118708A JPS61118708A (ja) | 1986-06-06 |
JPS6331766B2 true JPS6331766B2 (de) | 1988-06-27 |
Family
ID=17057137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24028084A Granted JPS61118708A (ja) | 1984-11-14 | 1984-11-14 | 光デイスク用レンズ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61118708A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6313011A (ja) * | 1986-07-03 | 1988-01-20 | Sankyo Seiki Mfg Co Ltd | 光デイスク用レンズ |
JPS6425113A (en) * | 1987-07-21 | 1989-01-27 | Mark Kk | Finite system large aperture single lens |
JPH02223906A (ja) * | 1989-02-24 | 1990-09-06 | Hoya Corp | 有限系大口径非球面レンズ |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776512A (en) * | 1980-10-31 | 1982-05-13 | Konishiroku Photo Ind Co Ltd | Large-aperture aspheric single lens |
JPS57201210A (en) * | 1981-06-04 | 1982-12-09 | Sony Corp | Condenser lens |
JPS6156314A (ja) * | 1984-08-28 | 1986-03-22 | Konishiroku Photo Ind Co Ltd | 光情報記録媒体の記録再生用対物レンズ |
-
1984
- 1984-11-14 JP JP24028084A patent/JPS61118708A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776512A (en) * | 1980-10-31 | 1982-05-13 | Konishiroku Photo Ind Co Ltd | Large-aperture aspheric single lens |
JPS57201210A (en) * | 1981-06-04 | 1982-12-09 | Sony Corp | Condenser lens |
JPS6156314A (ja) * | 1984-08-28 | 1986-03-22 | Konishiroku Photo Ind Co Ltd | 光情報記録媒体の記録再生用対物レンズ |
Also Published As
Publication number | Publication date |
---|---|
JPS61118708A (ja) | 1986-06-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |