JPH0434644U - - Google Patents
Info
- Publication number
- JPH0434644U JPH0434644U JP7611790U JP7611790U JPH0434644U JP H0434644 U JPH0434644 U JP H0434644U JP 7611790 U JP7611790 U JP 7611790U JP 7611790 U JP7611790 U JP 7611790U JP H0434644 U JPH0434644 U JP H0434644U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- objective lens
- observation device
- rotation
- disk
- 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 5
- 230000001427 coherent effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7611790U JPH0434644U (US06826419-20041130-M00005.png) | 1990-07-19 | 1990-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7611790U JPH0434644U (US06826419-20041130-M00005.png) | 1990-07-19 | 1990-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434644U true JPH0434644U (US06826419-20041130-M00005.png) | 1992-03-23 |
Family
ID=31617302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7611790U Pending JPH0434644U (US06826419-20041130-M00005.png) | 1990-07-19 | 1990-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434644U (US06826419-20041130-M00005.png) |
-
1990
- 1990-07-19 JP JP7611790U patent/JPH0434644U/ja active Pending
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