JPS63149414U - - Google Patents
Info
- Publication number
- JPS63149414U JPS63149414U JP4102887U JP4102887U JPS63149414U JP S63149414 U JPS63149414 U JP S63149414U JP 4102887 U JP4102887 U JP 4102887U JP 4102887 U JP4102887 U JP 4102887U JP S63149414 U JPS63149414 U JP S63149414U
- Authority
- JP
- Japan
- Prior art keywords
- photo sensor
- displacement
- divided photo
- objective lens
- pickup device
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4102887U JPS63149414U (de) | 1987-03-20 | 1987-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4102887U JPS63149414U (de) | 1987-03-20 | 1987-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149414U true JPS63149414U (de) | 1988-10-03 |
Family
ID=30855649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4102887U Pending JPS63149414U (de) | 1987-03-20 | 1987-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149414U (de) |
-
1987
- 1987-03-20 JP JP4102887U patent/JPS63149414U/ja active Pending
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