JPH0185829U - - Google Patents
Info
- Publication number
- JPH0185829U JPH0185829U JP1987182721U JP18272187U JPH0185829U JP H0185829 U JPH0185829 U JP H0185829U JP 1987182721 U JP1987182721 U JP 1987182721U JP 18272187 U JP18272187 U JP 18272187U JP H0185829 U JPH0185829 U JP H0185829U
- Authority
- JP
- Japan
- Prior art keywords
- transparent body
- screen
- fresnel lens
- treated
- back side
- 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 1
- 239000003973 paint Substances 0.000 description 1
Description
第１図は本考案によるビデオプロジエクタ用ス
クリーンの第１実施例の正面図、第２図はその
−線矢視断面図、第３図はその部分拡大断面図
、第４図は第２実施例の部分拡大断面図、第５図
はその第２図に対応する断面図、第６図及び第７
図はそれぞれ従来のスクリーンの平面図である。
２……ビデオプロジエクタ、７……スクリーン
、８……フレネルレンズ部、９……光拡散塗料。
FIG. 1 is a front view of a first embodiment of a screen for a video projector according to the present invention, FIG. 2 is a sectional view taken along the - line, FIG. 3 is a partially enlarged sectional view, and FIG. 4 is a second embodiment of the screen. A partially enlarged sectional view of the example, FIG. 5 is a sectional view corresponding to FIG. 2, and FIGS. 6 and 7.
Each figure is a plan view of a conventional screen. 2...Video projector, 7...Screen, 8...Fresnel lens section, 9...Light diffusion paint.
Claims (1)
ネルレンズ構造の透明体でなり、当該透明体の背
面側に、反射型ビデオプロジエクタからの光線を
拡散反射するような拡散反射処理を施したことを
特徴とするビデオプロジエクタ用スクリーン。 It is a transparent body with a Fresnel lens structure in which a large number of small annular lenses are arranged concentrically, and the back side of the transparent body is treated with diffuse reflection treatment to diffusely reflect the light rays from a reflective video projector. A screen for video projectors featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987182721U JPH0185829U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987182721U JPH0185829U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185829U true JPH0185829U (en) | 1989-06-07 |
Family
ID=31474165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987182721U Pending JPH0185829U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012252057A (en) * | 2011-05-31 | 2012-12-20 | Dainippon Printing Co Ltd | Reflection screen and image display system |
-
1987
- 1987-11-30 JP JP1987182721U patent/JPH0185829U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012252057A (en) * | 2011-05-31 | 2012-12-20 | Dainippon Printing Co Ltd | Reflection screen and image display system |