JPH0197415U - - Google Patents
Info
- Publication number
- JPH0197415U JPH0197415U JP19221787U JP19221787U JPH0197415U JP H0197415 U JPH0197415 U JP H0197415U JP 19221787 U JP19221787 U JP 19221787U JP 19221787 U JP19221787 U JP 19221787U JP H0197415 U JPH0197415 U JP H0197415U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- light beams
- recording medium
- split
- 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 7
- 230000004075 alteration Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 201000009310 astigmatism Diseases 0.000 claims 1
- 238000005286 illumination Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19221787U JPH0197415U (de) | 1987-12-18 | 1987-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19221787U JPH0197415U (de) | 1987-12-18 | 1987-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197415U true JPH0197415U (de) | 1989-06-28 |
Family
ID=31483086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19221787U Pending JPH0197415U (de) | 1987-12-18 | 1987-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197415U (de) |
-
1987
- 1987-12-18 JP JP19221787U patent/JPH0197415U/ja active Pending
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