JPS63193221U - - Google Patents
Info
- Publication number
- JPS63193221U JPS63193221U JP1987081957U JP8195787U JPS63193221U JP S63193221 U JPS63193221 U JP S63193221U JP 1987081957 U JP1987081957 U JP 1987081957U JP 8195787 U JP8195787 U JP 8195787U JP S63193221 U JPS63193221 U JP S63193221U
- Authority
- JP
- Japan
- Prior art keywords
- parallel beam
- lens
- recording medium
- information recording
- semiconductor laser
- 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
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987081957U JPS63193221U (ko) | 1987-05-28 | 1987-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987081957U JPS63193221U (ko) | 1987-05-28 | 1987-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63193221U true JPS63193221U (ko) | 1988-12-13 |
Family
ID=30934173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987081957U Pending JPS63193221U (ko) | 1987-05-28 | 1987-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63193221U (ko) |
-
1987
- 1987-05-28 JP JP1987081957U patent/JPS63193221U/ja active Pending