JPS6320972Y2 - - Google Patents
Info
- Publication number
- JPS6320972Y2 JPS6320972Y2 JP15702282U JP15702282U JPS6320972Y2 JP S6320972 Y2 JPS6320972 Y2 JP S6320972Y2 JP 15702282 U JP15702282 U JP 15702282U JP 15702282 U JP15702282 U JP 15702282U JP S6320972 Y2 JPS6320972 Y2 JP S6320972Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- light source
- surface facing
- convex surface
- source side
- 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
- 230000005499 meniscus Effects 0.000 claims description 11
- 230000004075 alteration Effects 0.000 description 9
- 239000006059 cover glass Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15702282U JPS5963329U (ja) | 1982-10-19 | 1982-10-19 | 光磁気記録用及び再生用対物レンズ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15702282U JPS5963329U (ja) | 1982-10-19 | 1982-10-19 | 光磁気記録用及び再生用対物レンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5963329U JPS5963329U (ja) | 1984-04-26 |
JPS6320972Y2 true JPS6320972Y2 (en, 2012) | 1988-06-10 |
Family
ID=30346313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15702282U Granted JPS5963329U (ja) | 1982-10-19 | 1982-10-19 | 光磁気記録用及び再生用対物レンズ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5963329U (en, 2012) |
-
1982
- 1982-10-19 JP JP15702282U patent/JPS5963329U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5963329U (ja) | 1984-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6049289B2 (ja) | ビデオデスク用の集光レンズ | |
US4684221A (en) | Graded refractive index single lens system | |
JPS6320972Y2 (en, 2012) | ||
GB2204147A (en) | Graded refractive index lens system | |
JPH0348487B2 (en, 2012) | ||
JPH0416763B2 (en, 2012) | ||
JPS6132649B2 (en, 2012) | ||
JPS6326364B2 (en, 2012) | ||
JPH0453285B2 (en, 2012) | ||
JPH0217085B2 (en, 2012) | ||
JPS6327683B2 (en, 2012) | ||
JPH0362242B2 (en, 2012) | ||
JPH0431087B2 (en, 2012) | ||
JPS6111721A (ja) | コリメ−トレンズ | |
JPH0412442B2 (en, 2012) | ||
JPH0210402B2 (en, 2012) | ||
JPS62203112A (ja) | 光デイスク用対物レンズ | |
JPH01130115A (ja) | レーザービーム用レンズ系 | |
JPH0215044B2 (en, 2012) | ||
JP2511275B2 (ja) | 光情報媒体の記録・再生用光学系 | |
JPS6233567B2 (en, 2012) | ||
JPS6216410B2 (en, 2012) | ||
JPS6257007B2 (en, 2012) | ||
JPS6161084B2 (en, 2012) | ||
JP2511279B2 (ja) | 光情報媒体の記録・再生用光学系 |