JPH0318530U - - Google Patents
Info
- Publication number
- JPH0318530U JPH0318530U JP1989078912U JP7891289U JPH0318530U JP H0318530 U JPH0318530 U JP H0318530U JP 1989078912 U JP1989078912 U JP 1989078912U JP 7891289 U JP7891289 U JP 7891289U JP H0318530 U JPH0318530 U JP H0318530U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- light diffusing
- film
- showing
- transparent plate
- 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
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078912U JPH0318530U (xx) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078912U JPH0318530U (xx) | 1989-07-04 | 1989-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318530U true JPH0318530U (xx) | 1991-02-22 |
Family
ID=31622603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989078912U Pending JPH0318530U (xx) | 1989-07-04 | 1989-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318530U (xx) |
-
1989
- 1989-07-04 JP JP1989078912U patent/JPH0318530U/ja active Pending