JPS6431513U - - Google Patents
Info
- Publication number
- JPS6431513U JPS6431513U JP12508487U JP12508487U JPS6431513U JP S6431513 U JPS6431513 U JP S6431513U JP 12508487 U JP12508487 U JP 12508487U JP 12508487 U JP12508487 U JP 12508487U JP S6431513 U JPS6431513 U JP S6431513U
- Authority
- JP
- Japan
- Prior art keywords
- integrated
- optical
- magneto
- laminated
- optical system
- 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 10
- 238000001514 detection method Methods 0.000 claims description 4
- 230000010287 polarization Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 3
- 201000009310 astigmatism Diseases 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Holo Graphy (AREA)
- Optical Head (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12508487U JPS6431513U (US08197722-20120612-C00093.png) | 1987-08-17 | 1987-08-17 | |
| US07/232,321 US5060212A (en) | 1987-08-17 | 1988-08-15 | Integrated optical pick-up device |
| US07/757,717 US5107477A (en) | 1987-08-17 | 1991-09-11 | Integrated optical pick-up device |
| US07/757,644 US5097462A (en) | 1987-08-17 | 1991-09-11 | Integrated optical pick-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12508487U JPS6431513U (US08197722-20120612-C00093.png) | 1987-08-17 | 1987-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6431513U true JPS6431513U (US08197722-20120612-C00093.png) | 1989-02-27 |
Family
ID=31375373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12508487U Pending JPS6431513U (US08197722-20120612-C00093.png) | 1987-08-17 | 1987-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6431513U (US08197722-20120612-C00093.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253842A (ja) * | 1988-03-31 | 1989-10-11 | Matsushita Electric Ind Co Ltd | 光ピックアップヘッド装置 |
| JPH03102647A (ja) * | 1989-09-14 | 1991-04-30 | Sharp Corp | 光学ヘッド |
-
1987
- 1987-08-17 JP JP12508487U patent/JPS6431513U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253842A (ja) * | 1988-03-31 | 1989-10-11 | Matsushita Electric Ind Co Ltd | 光ピックアップヘッド装置 |
| JPH03102647A (ja) * | 1989-09-14 | 1991-04-30 | Sharp Corp | 光学ヘッド |
