JPS61203427U - - Google Patents
Info
- Publication number
- JPS61203427U JPS61203427U JP8842885U JP8842885U JPS61203427U JP S61203427 U JPS61203427 U JP S61203427U JP 8842885 U JP8842885 U JP 8842885U JP 8842885 U JP8842885 U JP 8842885U JP S61203427 U JPS61203427 U JP S61203427U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- pickup device
- optical element
- light source
- point light
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000005357 flat glass Substances 0.000 claims description 2
- 201000009310 astigmatism Diseases 0.000 claims 2
- 230000001427 coherent effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8842885U JPS61203427U (fr) | 1985-06-12 | 1985-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8842885U JPS61203427U (fr) | 1985-06-12 | 1985-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61203427U true JPS61203427U (fr) | 1986-12-20 |
Family
ID=30641551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8842885U Pending JPS61203427U (fr) | 1985-06-12 | 1985-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61203427U (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04117635A (ja) * | 1989-06-06 | 1992-04-17 | Pencom Internatl Corp | 半導体レーザの光学ヘッド組立体 |
-
1985
- 1985-06-12 JP JP8842885U patent/JPS61203427U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04117635A (ja) * | 1989-06-06 | 1992-04-17 | Pencom Internatl Corp | 半導体レーザの光学ヘッド組立体 |