JPS626220B2 - - Google Patents
Info
- Publication number
- JPS626220B2 JPS626220B2 JP57177397A JP17739782A JPS626220B2 JP S626220 B2 JPS626220 B2 JP S626220B2 JP 57177397 A JP57177397 A JP 57177397A JP 17739782 A JP17739782 A JP 17739782A JP S626220 B2 JPS626220 B2 JP S626220B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- rear projection
- projection screen
- lenticular
- total 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.)
- Expired
Links
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- -1 CaCO 3 Inorganic materials 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram 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
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 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
- 230000000295 complement effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 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)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57177397A JPS59140434A (ja) | 1982-10-08 | 1982-10-08 | 背面投影スクリ−ン |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57177397A JPS59140434A (ja) | 1982-10-08 | 1982-10-08 | 背面投影スクリ−ン |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59140434A JPS59140434A (ja) | 1984-08-11 |
| JPS626220B2 true JPS626220B2 (ko) | 1987-02-09 |
Family
ID=16030207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57177397A Granted JPS59140434A (ja) | 1982-10-08 | 1982-10-08 | 背面投影スクリ−ン |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140434A (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824227A (en) * | 1985-11-20 | 1989-04-25 | North American Philips Corporation | Optimum riser angle for fresnel lenses in projection screens |
| US5657408A (en) | 1994-12-23 | 1997-08-12 | Alliedsignal Inc. | Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein |
-
1982
- 1982-10-08 JP JP57177397A patent/JPS59140434A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59140434A (ja) | 1984-08-11 |
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