JPS63191424U - - Google Patents
Info
- Publication number
- JPS63191424U JPS63191424U JP7944087U JP7944087U JPS63191424U JP S63191424 U JPS63191424 U JP S63191424U JP 7944087 U JP7944087 U JP 7944087U JP 7944087 U JP7944087 U JP 7944087U JP S63191424 U JPS63191424 U JP S63191424U
- Authority
- JP
- Japan
- Prior art keywords
- optical pickup
- tube
- hologram element
- optical
- pickup device
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
Landscapes
- Optical Head (AREA)
- Holo Graphy (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7944087U JPS63191424U (cs) | 1987-05-26 | 1987-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7944087U JPS63191424U (cs) | 1987-05-26 | 1987-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191424U true JPS63191424U (cs) | 1988-12-09 |
Family
ID=30929300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7944087U Pending JPS63191424U (cs) | 1987-05-26 | 1987-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191424U (cs) |
-
1987
- 1987-05-26 JP JP7944087U patent/JPS63191424U/ja active Pending