JPH02140629U - - Google Patents
Info
- Publication number
- JPH02140629U JPH02140629U JP4696289U JP4696289U JPH02140629U JP H02140629 U JPH02140629 U JP H02140629U JP 4696289 U JP4696289 U JP 4696289U JP 4696289 U JP4696289 U JP 4696289U JP H02140629 U JPH02140629 U JP H02140629U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical path
- lens
- beam splitter
- detection means
- 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
- 238000001514 detection method Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims 17
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4696289U JPH02140629U (2) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4696289U JPH02140629U (2) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140629U true JPH02140629U (2) | 1990-11-26 |
Family
ID=31562483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4696289U Pending JPH02140629U (2) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140629U (2) |
-
1989
- 1989-04-21 JP JP4696289U patent/JPH02140629U/ja active Pending
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