JPH01174721U - - Google Patents
Info
- Publication number
- JPH01174721U JPH01174721U JP7144488U JP7144488U JPH01174721U JP H01174721 U JPH01174721 U JP H01174721U JP 7144488 U JP7144488 U JP 7144488U JP 7144488 U JP7144488 U JP 7144488U JP H01174721 U JPH01174721 U JP H01174721U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- beam splitter
- polarizing beam
- lens
- photodiode
- 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 8
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144488U JPH01174721U (xx) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144488U JPH01174721U (xx) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174721U true JPH01174721U (xx) | 1989-12-12 |
Family
ID=31296653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7144488U Pending JPH01174721U (xx) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174721U (xx) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57200001A (en) * | 1981-06-02 | 1982-12-08 | Toshiba Corp | Optical record information reader |
-
1988
- 1988-05-30 JP JP7144488U patent/JPH01174721U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57200001A (en) * | 1981-06-02 | 1982-12-08 | Toshiba Corp | Optical record information reader |