JPS5662238A - See-through type bright view screen - Google Patents
See-through type bright view screenInfo
- Publication number
- JPS5662238A JPS5662238A JP13704979A JP13704979A JPS5662238A JP S5662238 A JPS5662238 A JP S5662238A JP 13704979 A JP13704979 A JP 13704979A JP 13704979 A JP13704979 A JP 13704979A JP S5662238 A JPS5662238 A JP S5662238A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- spheres
- unit
- face
- pits
- 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
Abstract
PURPOSE: To make it possible to produce good directivity and bright screen in a short time, by forming the screen surface with the continuous material of minute unit spheres arranged regularly and by forming the plane of the unit sphere into a hexagon.
CONSTITUTION: For example, pits 2 of prescribed arrangement and depth are formed zigzag on glass plate 1 by the photoetching method. Next, when etching is caused to advance with pit 2 as the center, the concave mirror face of a regular arrangement having hexagonal plane spheres 3 is obtained. Thus, scattering directivities different in vertical direction and horizontal direction are obtained. By providing pits 2 zigzag, the curvature and the form of unit spheres can be controlled easily in the shortest time with no flat part left between unit spheres. The glass screen face obtained in this manner is transferred to a transparent directly or indirectly, thus obtaining a screen of the similar scattering face.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13704979A JPS5662238A (en) | 1979-10-25 | 1979-10-25 | See-through type bright view screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13704979A JPS5662238A (en) | 1979-10-25 | 1979-10-25 | See-through type bright view screen |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662238A true JPS5662238A (en) | 1981-05-28 |
Family
ID=15189672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13704979A Pending JPS5662238A (en) | 1979-10-25 | 1979-10-25 | See-through type bright view screen |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662238A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09133971A (en) * | 1995-07-31 | 1997-05-20 | Samsung Electron Co Ltd | Projection screen for back projection tv set |
WO2000079341A1 (en) * | 1999-06-18 | 2000-12-28 | 3M Innovative Properties Company | Rear projection screen with means for diverging light asymmetrically |
US7382534B2 (en) | 2004-07-14 | 2008-06-03 | Seiko Epson Corporation | Screen and projector with spherical lens array |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5146702A (en) * | 1974-10-21 | 1976-04-21 | Kayaba Industry Co Ltd | BUREEDOKUTSUSHINSOCHI |
-
1979
- 1979-10-25 JP JP13704979A patent/JPS5662238A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5146702A (en) * | 1974-10-21 | 1976-04-21 | Kayaba Industry Co Ltd | BUREEDOKUTSUSHINSOCHI |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09133971A (en) * | 1995-07-31 | 1997-05-20 | Samsung Electron Co Ltd | Projection screen for back projection tv set |
US5844715A (en) * | 1995-07-31 | 1998-12-01 | Samsung Electronics Co., Ltd. | Projection screen for rear projection television set |
WO2000079341A1 (en) * | 1999-06-18 | 2000-12-28 | 3M Innovative Properties Company | Rear projection screen with means for diverging light asymmetrically |
US6317263B1 (en) | 1999-06-18 | 2001-11-13 | 3M Innovative Properties Company | Projection screen using dispersing lens array for asymmetric viewing angle |
US7382534B2 (en) | 2004-07-14 | 2008-06-03 | Seiko Epson Corporation | Screen and projector with spherical lens array |
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