JPS63153111U - - Google Patents
Info
- Publication number
- JPS63153111U JPS63153111U JP4506787U JP4506787U JPS63153111U JP S63153111 U JPS63153111 U JP S63153111U JP 4506787 U JP4506787 U JP 4506787U JP 4506787 U JP4506787 U JP 4506787U JP S63153111 U JPS63153111 U JP S63153111U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- circuit
- sample
- error signal
- focus error
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506787U JPH0543370Y2 (cs) | 1987-03-27 | 1987-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506787U JPH0543370Y2 (cs) | 1987-03-27 | 1987-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63153111U true JPS63153111U (cs) | 1988-10-07 |
| JPH0543370Y2 JPH0543370Y2 (cs) | 1993-11-01 |
Family
ID=30863469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4506787U Expired - Lifetime JPH0543370Y2 (cs) | 1987-03-27 | 1987-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543370Y2 (cs) |
-
1987
- 1987-03-27 JP JP4506787U patent/JPH0543370Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543370Y2 (cs) | 1993-11-01 |
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