JPS6128981B2 - - Google Patents
Info
- Publication number
- JPS6128981B2 JPS6128981B2 JP57059389A JP5938982A JPS6128981B2 JP S6128981 B2 JPS6128981 B2 JP S6128981B2 JP 57059389 A JP57059389 A JP 57059389A JP 5938982 A JP5938982 A JP 5938982A JP S6128981 B2 JPS6128981 B2 JP S6128981B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens
- rear projection
- lens unit
- lenticular
- 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.)
- Expired
Links
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- -1 BaSO 4 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
- G03B21/625—Lenticular translucent screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059389A JPS58176628A (ja) | 1982-04-09 | 1982-04-09 | 背面投影スクリ−ン |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059389A JPS58176628A (ja) | 1982-04-09 | 1982-04-09 | 背面投影スクリ−ン |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58176628A JPS58176628A (ja) | 1983-10-17 |
| JPS6128981B2 true JPS6128981B2 (forum.php) | 1986-07-03 |
Family
ID=13111875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57059389A Granted JPS58176628A (ja) | 1982-04-09 | 1982-04-09 | 背面投影スクリ−ン |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176628A (forum.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6115134A (ja) * | 1984-07-02 | 1986-01-23 | Mitsubishi Rayon Co Ltd | 透過型スクリ−ン |
| US4880292A (en) * | 1987-07-24 | 1989-11-14 | Minolta Camera Kabushiki Kaisha | Transmission viewing screen of image projector apparatus |
| DK160593C (da) * | 1988-09-28 | 1991-09-09 | Dainippon Printing Co Ltd | Baglysprojektionsskaerm |
-
1982
- 1982-04-09 JP JP57059389A patent/JPS58176628A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58176628A (ja) | 1983-10-17 |
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