JPH0431415U - - Google Patents
Info
- Publication number
- JPH0431415U JPH0431415U JP7110490U JP7110490U JPH0431415U JP H0431415 U JPH0431415 U JP H0431415U JP 7110490 U JP7110490 U JP 7110490U JP 7110490 U JP7110490 U JP 7110490U JP H0431415 U JPH0431415 U JP H0431415U
- Authority
- JP
- Japan
- Prior art keywords
- focus servo
- elements
- output
- adder
- differential amplifier
- 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
- 201000009310 astigmatism Diseases 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7110490U JPH0431415U (ko) | 1990-07-05 | 1990-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7110490U JPH0431415U (ko) | 1990-07-05 | 1990-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431415U true JPH0431415U (ko) | 1992-03-13 |
Family
ID=31607839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7110490U Pending JPH0431415U (ko) | 1990-07-05 | 1990-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431415U (ko) |
-
1990
- 1990-07-05 JP JP7110490U patent/JPH0431415U/ja active Pending
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