JPS61198115A - 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
- JPS61198115A JPS61198115A JP3922585A JP3922585A JPS61198115A JP S61198115 A JPS61198115 A JP S61198115A JP 3922585 A JP3922585 A JP 3922585A JP 3922585 A JP3922585 A JP 3922585A JP S61198115 A JPS61198115 A JP S61198115A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- condition
- curvature
- object 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
Links
- 230000003287 optical effect Effects 0.000 title claims description 16
- 108700041286 delta Proteins 0.000 claims 2
- 230000004075 alteration Effects 0.000 abstract description 14
- 230000001603 reducing effect Effects 0.000 abstract description 2
- 230000008961 swelling Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 235000015278 beef Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3922585A JPS61198115A (ja) | 1985-02-27 | 1985-02-27 | 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 |
|---|---|---|---|
| JP3922585A JPS61198115A (ja) | 1985-02-27 | 1985-02-27 | 光情報記録媒体の記録再生用対物レンズ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61198115A true JPS61198115A (ja) | 1986-09-02 |
| JPH0453284B2 JPH0453284B2 (enrdf_load_stackoverflow) | 1992-08-26 |
Family
ID=12547186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3922585A Granted JPS61198115A (ja) | 1985-02-27 | 1985-02-27 | 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) | JPS61198115A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02223906A (ja) * | 1989-02-24 | 1990-09-06 | Hoya Corp | 有限系大口径非球面レンズ |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5868711A (ja) * | 1981-10-20 | 1983-04-23 | Matsushita Electric Ind Co Ltd | 対物レンズ |
-
1985
- 1985-02-27 JP JP3922585A patent/JPS61198115A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5868711A (ja) * | 1981-10-20 | 1983-04-23 | Matsushita Electric Ind Co Ltd | 対物レンズ |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02223906A (ja) * | 1989-02-24 | 1990-09-06 | Hoya Corp | 有限系大口径非球面レンズ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453284B2 (enrdf_load_stackoverflow) | 1992-08-26 |
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