JPH02135920U - - Google Patents
Info
- Publication number
- JPH02135920U JPH02135920U JP4422289U JP4422289U JPH02135920U JP H02135920 U JPH02135920 U JP H02135920U JP 4422289 U JP4422289 U JP 4422289U JP 4422289 U JP4422289 U JP 4422289U JP H02135920 U JPH02135920 U JP H02135920U
- Authority
- JP
- Japan
- Prior art keywords
- light amount
- light
- optical disk
- amount
- light beam
- 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 6
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4422289U JPH02135920U (de) | 1989-04-14 | 1989-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4422289U JPH02135920U (de) | 1989-04-14 | 1989-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135920U true JPH02135920U (de) | 1990-11-13 |
Family
ID=31557327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4422289U Pending JPH02135920U (de) | 1989-04-14 | 1989-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135920U (de) |
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1989
- 1989-04-14 JP JP4422289U patent/JPH02135920U/ja active Pending