JPS63191421U - - Google Patents
Info
- Publication number
- JPS63191421U JPS63191421U JP7944187U JP7944187U JPS63191421U JP S63191421 U JPS63191421 U JP S63191421U JP 7944187 U JP7944187 U JP 7944187U JP 7944187 U JP7944187 U JP 7944187U JP S63191421 U JPS63191421 U JP S63191421U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- light source
- hologram element
- laser light
- 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 7
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7944187U JPS63191421U (fr) | 1987-05-26 | 1987-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7944187U JPS63191421U (fr) | 1987-05-26 | 1987-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191421U true JPS63191421U (fr) | 1988-12-09 |
Family
ID=30929303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7944187U Pending JPS63191421U (fr) | 1987-05-26 | 1987-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191421U (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6297141A (ja) * | 1985-10-17 | 1987-05-06 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 光学走査装置 |
-
1987
- 1987-05-26 JP JP7944187U patent/JPS63191421U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6297141A (ja) * | 1985-10-17 | 1987-05-06 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 光学走査装置 |