JPH0181602U - - Google Patents
Info
- Publication number
- JPH0181602U JPH0181602U JP1987177290U JP17729087U JPH0181602U JP H0181602 U JPH0181602 U JP H0181602U JP 1987177290 U JP1987177290 U JP 1987177290U JP 17729087 U JP17729087 U JP 17729087U JP H0181602 U JPH0181602 U JP H0181602U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens surfaces
- exit
- utility
- light incident
- 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 description 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177290U JPH0181602U (xx) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177290U JPH0181602U (xx) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181602U true JPH0181602U (xx) | 1989-05-31 |
Family
ID=31468958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177290U Pending JPH0181602U (xx) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181602U (xx) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113741A (ja) * | 1989-09-25 | 1991-05-15 | Fujitsu Ltd | 光ディスク装置 |
-
1987
- 1987-11-20 JP JP1987177290U patent/JPH0181602U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113741A (ja) * | 1989-09-25 | 1991-05-15 | Fujitsu Ltd | 光ディスク装置 |