JPH01107019U - - Google Patents
Info
- Publication number
- JPH01107019U JPH01107019U JP211788U JP211788U JPH01107019U JP H01107019 U JPH01107019 U JP H01107019U JP 211788 U JP211788 U JP 211788U JP 211788 U JP211788 U JP 211788U JP H01107019 U JPH01107019 U JP H01107019U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- optical information
- collimator lens
- recording medium
- objective lens
- 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 9
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211788U JPH01107019U (enEXAMPLES) | 1988-01-12 | 1988-01-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211788U JPH01107019U (enEXAMPLES) | 1988-01-12 | 1988-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01107019U true JPH01107019U (enEXAMPLES) | 1989-07-19 |
Family
ID=31202611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP211788U Pending JPH01107019U (enEXAMPLES) | 1988-01-12 | 1988-01-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01107019U (enEXAMPLES) |
-
1988
- 1988-01-12 JP JP211788U patent/JPH01107019U/ja active Pending
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