JPH02117726U - - Google Patents
Info
- Publication number
- JPH02117726U JPH02117726U JP2696189U JP2696189U JPH02117726U JP H02117726 U JPH02117726 U JP H02117726U JP 2696189 U JP2696189 U JP 2696189U JP 2696189 U JP2696189 U JP 2696189U JP H02117726 U JPH02117726 U JP H02117726U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- objective lens
- recording medium
- information recording
- optical
- 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 18
- 230000010365 information processing Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2696189U JPH02117726U (bg) | 1989-03-09 | 1989-03-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2696189U JPH02117726U (bg) | 1989-03-09 | 1989-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117726U true JPH02117726U (bg) | 1990-09-20 |
Family
ID=31249055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2696189U Pending JPH02117726U (bg) | 1989-03-09 | 1989-03-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117726U (bg) |
-
1989
- 1989-03-09 JP JP2696189U patent/JPH02117726U/ja active Pending