JPS6131382Y2 - - Google Patents
Info
- Publication number
- JPS6131382Y2 JPS6131382Y2 JP13438180U JP13438180U JPS6131382Y2 JP S6131382 Y2 JPS6131382 Y2 JP S6131382Y2 JP 13438180 U JP13438180 U JP 13438180U JP 13438180 U JP13438180 U JP 13438180U JP S6131382 Y2 JPS6131382 Y2 JP S6131382Y2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- control signal
- circuit
- control
- output
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000004069 differentiation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 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 |
|---|---|---|---|
| JP13438180U JPS6131382Y2 (fr) | 1980-09-19 | 1980-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13438180U JPS6131382Y2 (fr) | 1980-09-19 | 1980-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5756330U JPS5756330U (fr) | 1982-04-02 |
| JPS6131382Y2 true JPS6131382Y2 (fr) | 1986-09-12 |
Family
ID=29494574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13438180U Expired JPS6131382Y2 (fr) | 1980-09-19 | 1980-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131382Y2 (fr) |
-
1980
- 1980-09-19 JP JP13438180U patent/JPS6131382Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5756330U (fr) | 1982-04-02 |
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