JPS632218U - - Google Patents
Info
- Publication number
- JPS632218U JPS632218U JP9304686U JP9304686U JPS632218U JP S632218 U JPS632218 U JP S632218U JP 9304686 U JP9304686 U JP 9304686U JP 9304686 U JP9304686 U JP 9304686U JP S632218 U JPS632218 U JP S632218U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- error
- offset
- generation circuit
- zero
- 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 9
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9304686U JPS632218U (de) | 1986-06-18 | 1986-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9304686U JPS632218U (de) | 1986-06-18 | 1986-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS632218U true JPS632218U (de) | 1988-01-08 |
Family
ID=30955287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9304686U Pending JPS632218U (de) | 1986-06-18 | 1986-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS632218U (de) |
-
1986
- 1986-06-18 JP JP9304686U patent/JPS632218U/ja active Pending
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