JPS566230A - Screen - Google Patents
ScreenInfo
- Publication number
- JPS566230A JPS566230A JP8174079A JP8174079A JPS566230A JP S566230 A JPS566230 A JP S566230A JP 8174079 A JP8174079 A JP 8174079A JP 8174079 A JP8174079 A JP 8174079A JP S566230 A JPS566230 A JP S566230A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- light
- screen
- fine unevenness
- reflection
- 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
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Abstract
PURPOSE: To eliminate adverse influence owing to flare light, make external light reflection much less and achieve higher contrast by forming the specified light absorptive pattern on the screen formed with fine unevenness.
CONSTITUTION: A grating pattern 7 formed by light absorbing material is provided in provided in the surface 4a of a transmission type screen 4 which is formed with a transparent plate 6 provided with fine unevenness and the vertical and horizontal pitches of the pattern 7 are made smaller than one picture element and are virtually undiscernible. If TV images, etc. are back-magnification-projected by using this screen 4, the flare light transmitted along the inner side of the face 4a by the pattern 7 is cut off and the quantity of reflection of external light is reduced, thus the increase in contrast may be achieved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8174079A JPS566230A (en) | 1979-06-28 | 1979-06-28 | Screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8174079A JPS566230A (en) | 1979-06-28 | 1979-06-28 | Screen |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS566230A true JPS566230A (en) | 1981-01-22 |
Family
ID=13754827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8174079A Pending JPS566230A (en) | 1979-06-28 | 1979-06-28 | Screen |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS566230A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57189128A (en) * | 1981-05-18 | 1982-11-20 | Asahi Chem Ind Co Ltd | Light shield screen for reflection prevention and its manufacture |
WO2004109391A1 (en) * | 2003-06-03 | 2004-12-16 | Dai Nippon Printing Co., Ltd. | Fresnel lens sheet, transmission screen and back projection display |
-
1979
- 1979-06-28 JP JP8174079A patent/JPS566230A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57189128A (en) * | 1981-05-18 | 1982-11-20 | Asahi Chem Ind Co Ltd | Light shield screen for reflection prevention and its manufacture |
WO2004109391A1 (en) * | 2003-06-03 | 2004-12-16 | Dai Nippon Printing Co., Ltd. | Fresnel lens sheet, transmission screen and back projection display |
US7317572B2 (en) | 2003-06-03 | 2008-01-08 | Dai Nippon Printing Co., Ltd. | Fresnel lens sheet, rear projection screen and rear projection display |
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