JPH034976Y2 - - Google Patents
Info
- Publication number
- JPH034976Y2 JPH034976Y2 JP14058784U JP14058784U JPH034976Y2 JP H034976 Y2 JPH034976 Y2 JP H034976Y2 JP 14058784 U JP14058784 U JP 14058784U JP 14058784 U JP14058784 U JP 14058784U JP H034976 Y2 JPH034976 Y2 JP H034976Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- focus
- light
- disk
- obtaining
- 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
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14058784U JPH034976Y2 (enrdf_load_stackoverflow) | 1984-09-17 | 1984-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14058784U JPH034976Y2 (enrdf_load_stackoverflow) | 1984-09-17 | 1984-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155218U JPS6155218U (enrdf_load_stackoverflow) | 1986-04-14 |
| JPH034976Y2 true JPH034976Y2 (enrdf_load_stackoverflow) | 1991-02-08 |
Family
ID=30698942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14058784U Expired JPH034976Y2 (enrdf_load_stackoverflow) | 1984-09-17 | 1984-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034976Y2 (enrdf_load_stackoverflow) |
-
1984
- 1984-09-17 JP JP14058784U patent/JPH034976Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6155218U (enrdf_load_stackoverflow) | 1986-04-14 |
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