JPH02131745U - - Google Patents
Info
- Publication number
- JPH02131745U JPH02131745U JP1989038358U JP3835889U JPH02131745U JP H02131745 U JPH02131745 U JP H02131745U JP 1989038358 U JP1989038358 U JP 1989038358U JP 3835889 U JP3835889 U JP 3835889U JP H02131745 U JPH02131745 U JP H02131745U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- reflective
- cylindrical lenses
- present
- reflective material
- 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
- 239000000463 material Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989038358U JPH02131745U (cs) | 1989-03-31 | 1989-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989038358U JPH02131745U (cs) | 1989-03-31 | 1989-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02131745U true JPH02131745U (cs) | 1990-11-01 |
Family
ID=31546291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989038358U Pending JPH02131745U (cs) | 1989-03-31 | 1989-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02131745U (cs) |
-
1989
- 1989-03-31 JP JP1989038358U patent/JPH02131745U/ja active Pending