JPH02128217U - - Google Patents
Info
- Publication number
- JPH02128217U JPH02128217U JP3685989U JP3685989U JPH02128217U JP H02128217 U JPH02128217 U JP H02128217U JP 3685989 U JP3685989 U JP 3685989U JP 3685989 U JP3685989 U JP 3685989U JP H02128217 U JPH02128217 U JP H02128217U
- Authority
- JP
- Japan
- Prior art keywords
- transparent plate
- objective lens
- axis
- 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 7
- 239000000428 dust Substances 0.000 claims 2
- 238000004140 cleaning Methods 0.000 claims 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3685989U JPH02128217U (en]) | 1989-03-30 | 1989-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3685989U JPH02128217U (en]) | 1989-03-30 | 1989-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02128217U true JPH02128217U (en]) | 1990-10-23 |
Family
ID=31543457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3685989U Pending JPH02128217U (en]) | 1989-03-30 | 1989-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02128217U (en]) |
-
1989
- 1989-03-30 JP JP3685989U patent/JPH02128217U/ja active Pending