JPH02144185U - - Google Patents
Info
- Publication number
- JPH02144185U JPH02144185U JP5123089U JP5123089U JPH02144185U JP H02144185 U JPH02144185 U JP H02144185U JP 5123089 U JP5123089 U JP 5123089U JP 5123089 U JP5123089 U JP 5123089U JP H02144185 U JPH02144185 U JP H02144185U
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- objective lens
- area
- light
- reproducing
- 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
- 238000004140 cleaning Methods 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000011109 contamination Methods 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5123089U JPH02144185U (uk) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5123089U JPH02144185U (uk) | 1989-04-28 | 1989-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02144185U true JPH02144185U (uk) | 1990-12-06 |
Family
ID=31570477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5123089U Pending JPH02144185U (uk) | 1989-04-28 | 1989-04-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02144185U (uk) |
-
1989
- 1989-04-28 JP JP5123089U patent/JPH02144185U/ja active Pending
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