JPH0143290B2 - - Google Patents
Info
- Publication number
- JPH0143290B2 JPH0143290B2 JP17542685A JP17542685A JPH0143290B2 JP H0143290 B2 JPH0143290 B2 JP H0143290B2 JP 17542685 A JP17542685 A JP 17542685A JP 17542685 A JP17542685 A JP 17542685A JP H0143290 B2 JPH0143290 B2 JP H0143290B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- group
- negative
- positive
- light source
- 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 9
- 230000005499 meniscus Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17542685A JPS6235310A (ja) | 1985-08-09 | 1985-08-09 | 光デイスク用レンズ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17542685A JPS6235310A (ja) | 1985-08-09 | 1985-08-09 | 光デイスク用レンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6235310A JPS6235310A (ja) | 1987-02-16 |
JPH0143290B2 true JPH0143290B2 (fr) | 1989-09-20 |
Family
ID=15995891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17542685A Granted JPS6235310A (ja) | 1985-08-09 | 1985-08-09 | 光デイスク用レンズ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6235310A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63187213A (ja) * | 1987-01-29 | 1988-08-02 | Canon Inc | 集光光学系 |
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 |
JP2007148138A (ja) * | 2005-11-29 | 2007-06-14 | Kyocera Corp | 撮像レンズ、光学モジュール、および携帯端末 |
-
1985
- 1985-08-09 JP JP17542685A patent/JPS6235310A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6235310A (ja) | 1987-02-16 |
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