JPH01151418U - - Google Patents
Info
- Publication number
- JPH01151418U JPH01151418U JP4631288U JP4631288U JPH01151418U JP H01151418 U JPH01151418 U JP H01151418U JP 4631288 U JP4631288 U JP 4631288U JP 4631288 U JP4631288 U JP 4631288U JP H01151418 U JPH01151418 U JP H01151418U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- lens holder
- center
- detection device
- position detection
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 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 |
|---|---|---|---|
| JP4631288U JPH01151418U (cs) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4631288U JPH01151418U (cs) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151418U true JPH01151418U (cs) | 1989-10-19 |
Family
ID=31272582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4631288U Pending JPH01151418U (cs) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151418U (cs) |
-
1988
- 1988-04-06 JP JP4631288U patent/JPH01151418U/ja active Pending
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