JPS6412219U - - Google Patents
Info
- Publication number
- JPS6412219U JPS6412219U JP10414787U JP10414787U JPS6412219U JP S6412219 U JPS6412219 U JP S6412219U JP 10414787 U JP10414787 U JP 10414787U JP 10414787 U JP10414787 U JP 10414787U JP S6412219 U JPS6412219 U JP S6412219U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- detection means
- error detection
- skew
- focus error
- 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 15
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10414787U JPS6412219U (enExample) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10414787U JPS6412219U (enExample) | 1987-07-07 | 1987-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412219U true JPS6412219U (enExample) | 1989-01-23 |
Family
ID=31335604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10414787U Pending JPS6412219U (enExample) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412219U (enExample) |
-
1987
- 1987-07-07 JP JP10414787U patent/JPS6412219U/ja active Pending