JPH0439741B2 - - Google Patents
Info
- Publication number
- JPH0439741B2 JPH0439741B2 JP28501185A JP28501185A JPH0439741B2 JP H0439741 B2 JPH0439741 B2 JP H0439741B2 JP 28501185 A JP28501185 A JP 28501185A JP 28501185 A JP28501185 A JP 28501185A JP H0439741 B2 JPH0439741 B2 JP H0439741B2
- Authority
- JP
- Japan
- Prior art keywords
- diffraction grating
- driver
- pickup device
- protrusion
- optical signal
- 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 34
- 239000004065 semiconductor Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28501185A JPS62143233A (ja) | 1985-12-18 | 1985-12-18 | 光学式信号ピツクアツブ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28501185A JPS62143233A (ja) | 1985-12-18 | 1985-12-18 | 光学式信号ピツクアツブ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62143233A JPS62143233A (ja) | 1987-06-26 |
| JPH0439741B2 true JPH0439741B2 (enrdf_load_html_response) | 1992-06-30 |
Family
ID=17685992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28501185A Granted JPS62143233A (ja) | 1985-12-18 | 1985-12-18 | 光学式信号ピツクアツブ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62143233A (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6445314U (enrdf_load_html_response) * | 1987-09-10 | 1989-03-20 |
-
1985
- 1985-12-18 JP JP28501185A patent/JPS62143233A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62143233A (ja) | 1987-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |