JPS5652985A - Preparation of transmission screen - Google Patents
Preparation of transmission screenInfo
- Publication number
- JPS5652985A JPS5652985A JP12929379A JP12929379A JPS5652985A JP S5652985 A JPS5652985 A JP S5652985A JP 12929379 A JP12929379 A JP 12929379A JP 12929379 A JP12929379 A JP 12929379A JP S5652985 A JPS5652985 A JP S5652985A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- lenticular lens
- lens
- preparation
- transmission screen
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE:To make it possible not to cause a color change even if viewers move horizontally, by properly deciding the sectional shape of a lenticular lens of one element. CONSTITUTION:A Fresnel lens 6 of pitch 0.5mm. is provided on one surface of a transparent polymethyl methacrylate base material 5 which has a refractive index of 1.492, and a lenticular lens 7 of pitch 0.75mm. is provided on the other surface. When the ratio of the pitch of the lenticular lens 7 to the pitch of the Fresnel lens 6 is made 1:1.5 or 1.5:1 or so, since moires are a few, this method is ideal. The linear part 9 and the circular part 10 which are symmetrical centering around the center line of the pitch part 8 are provided on the surface of the lenticular lens 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12929379A JPS5652985A (en) | 1979-10-05 | 1979-10-05 | Preparation of transmission screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12929379A JPS5652985A (en) | 1979-10-05 | 1979-10-05 | Preparation of transmission screen |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5652985A true JPS5652985A (en) | 1981-05-12 |
Family
ID=15005982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12929379A Pending JPS5652985A (en) | 1979-10-05 | 1979-10-05 | Preparation of transmission screen |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5652985A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191627A (en) * | 1981-05-22 | 1982-11-25 | Mitsubishi Rayon Co Ltd | Back projection type screen |
JPS57210331A (en) * | 1981-06-20 | 1982-12-23 | Dainippon Printing Co Ltd | Transmissive screen |
JPS57210333A (en) * | 1981-06-20 | 1982-12-23 | Dainippon Printing Co Ltd | Transmission type screen |
JPS5837628A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Die for manufacture of transmission type screen and its production |
JPS5837629A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Production of die for manufacture of transmission type screen |
JPS5837630A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Transmission type screen and its manufacture |
US4432010A (en) * | 1981-10-05 | 1984-02-14 | Hitachi, Ltd. | Rear projection apparatus |
JPS5995525A (en) * | 1982-11-24 | 1984-06-01 | Mitsubishi Rayon Co Ltd | Back projection screen |
JPS6177832A (en) * | 1984-09-25 | 1986-04-21 | Mitsubishi Electric Corp | Transmission type screen |
US4725134A (en) * | 1984-06-13 | 1988-02-16 | Hitachi, Ltd. | Rear projection apparatus |
USRE33795E (en) * | 1984-06-13 | 1992-01-14 | Hitachi, Ltd. | Rear projection apparatus |
US6249376B1 (en) | 1997-09-12 | 2001-06-19 | Dai Nippon Printing Co., Ltd. | Projection screen |
WO2006009193A1 (en) * | 2004-07-23 | 2006-01-26 | Kuraray Co., Ltd. | Back projection-type screen and back projection-type projection device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2510344A (en) * | 1945-03-17 | 1950-06-06 | Rca Corp | Viewing screen |
FR2276605A1 (en) * | 1974-06-28 | 1976-01-23 | Bachelot Andre | Double sided optical projection surface - improved image contrast transfer and improved luminous transfer efficiency |
-
1979
- 1979-10-05 JP JP12929379A patent/JPS5652985A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2510344A (en) * | 1945-03-17 | 1950-06-06 | Rca Corp | Viewing screen |
FR2276605A1 (en) * | 1974-06-28 | 1976-01-23 | Bachelot Andre | Double sided optical projection surface - improved image contrast transfer and improved luminous transfer efficiency |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0368365B2 (en) * | 1981-05-22 | 1991-10-28 | Mitsubishi Rayon Co | |
JPS57191627A (en) * | 1981-05-22 | 1982-11-25 | Mitsubishi Rayon Co Ltd | Back projection type screen |
JPH0215049B2 (en) * | 1981-06-20 | 1990-04-10 | Dainippon Printing Co Ltd | |
JPS57210331A (en) * | 1981-06-20 | 1982-12-23 | Dainippon Printing Co Ltd | Transmissive screen |
JPS57210333A (en) * | 1981-06-20 | 1982-12-23 | Dainippon Printing Co Ltd | Transmission type screen |
JPH0215048B2 (en) * | 1981-06-20 | 1990-04-10 | Dainippon Printing Co Ltd | |
JPS5837629A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Production of die for manufacture of transmission type screen |
JPS5837630A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Transmission type screen and its manufacture |
JPS5837628A (en) * | 1981-08-31 | 1983-03-04 | Dainippon Printing Co Ltd | Die for manufacture of transmission type screen and its production |
US4432010A (en) * | 1981-10-05 | 1984-02-14 | Hitachi, Ltd. | Rear projection apparatus |
JPS5995525A (en) * | 1982-11-24 | 1984-06-01 | Mitsubishi Rayon Co Ltd | Back projection screen |
JPH0372972B2 (en) * | 1982-11-24 | 1991-11-20 | Mitsubishi Rayon Co | |
US4725134A (en) * | 1984-06-13 | 1988-02-16 | Hitachi, Ltd. | Rear projection apparatus |
USRE33795E (en) * | 1984-06-13 | 1992-01-14 | Hitachi, Ltd. | Rear projection apparatus |
JPS6177832A (en) * | 1984-09-25 | 1986-04-21 | Mitsubishi Electric Corp | Transmission type screen |
US6249376B1 (en) | 1997-09-12 | 2001-06-19 | Dai Nippon Printing Co., Ltd. | Projection screen |
WO2006009193A1 (en) * | 2004-07-23 | 2006-01-26 | Kuraray Co., Ltd. | Back projection-type screen and back projection-type projection device |
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