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)
Description
第１図はこの考案に係るスクリーンの構成を示
す断面図、第２図は第１図のスクリーンが設けら
れる投影装置の全体構成を示す説明図、第３図は
第１図のスクリーンに用いた拡散フイルムの配光
透過特性を示すグラフ、第４図は第１図に示した
スクリーンの変形例を示す断面図、第５図及び第
６図はスリガラスの配光透過特性を示すグラフで
ある。
３０……スクリーン、３１，３３……透明板、
３２……光拡散フイルム、３２ａ…ポリエステル
フイルム、３２ｂ……光拡散層。
Fig. 1 is a sectional view showing the structure of the screen according to this invention, Fig. 2 is an explanatory view showing the overall structure of a projection device in which the screen of Fig. 1 is installed, and Fig. 3 is a cross-sectional view showing the structure of the screen of Fig. 1. FIG. 4 is a sectional view showing a modification of the screen shown in FIG. 1, and FIGS. 5 and 6 are graphs showing the light distribution and transmission characteristics of ground glass. 30... Screen, 31, 33... Transparent plate,
32...Light diffusion film, 32a...Polyester film, 32b...Light diffusion layer.
Claims (1)
、このフイルムの少なくとも片面側に接合された
透明板とを有することを特徴とするスクリーン。 1. A screen comprising: a light diffusing film provided with a light diffusing layer on one side; and a transparent plate bonded to at least one side of the film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078912U JPH0318530U (en) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078912U JPH0318530U (en) | 1989-07-04 | 1989-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318530U true JPH0318530U (en) | 1991-02-22 |
Family
ID=31622603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989078912U Pending JPH0318530U (en) | 1989-07-04 | 1989-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318530U (en) |
-
1989
- 1989-07-04 JP JP1989078912U patent/JPH0318530U/ja active Pending