JPS64816U - - Google Patents
Info
- Publication number
- JPS64816U JPS64816U JP9341987U JP9341987U JPS64816U JP S64816 U JPS64816 U JP S64816U JP 9341987 U JP9341987 U JP 9341987U JP 9341987 U JP9341987 U JP 9341987U JP S64816 U JPS64816 U JP S64816U
- Authority
- JP
- Japan
- Prior art keywords
- light
- objective lens
- cover
- light beam
- recording medium
- 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 4
- 239000006059 cover glass Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9341987U JPS64816U (xx) | 1987-06-19 | 1987-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9341987U JPS64816U (xx) | 1987-06-19 | 1987-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS64816U true JPS64816U (xx) | 1989-01-05 |
Family
ID=30955991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9341987U Pending JPS64816U (xx) | 1987-06-19 | 1987-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64816U (xx) |
-
1987
- 1987-06-19 JP JP9341987U patent/JPS64816U/ja active Pending