BE559116A - - Google Patents
Info
- Publication number
- BE559116A BE559116A BE559116DA BE559116A BE 559116 A BE559116 A BE 559116A BE 559116D A BE559116D A BE 559116DA BE 559116 A BE559116 A BE 559116A
- Authority
- BE
- Belgium
- Prior art keywords
- screen
- light
- partially transparent
- relief
- projector
- Prior art date
Links
- 239000012780 transparent material Substances 0.000 claims description 5
- 230000035807 sensation Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 230000002411 adverse Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE559116A true BE559116A (enrdf_load_stackoverflow) |
Family
ID=181931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE559116D BE559116A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE559116A (enrdf_load_stackoverflow) |
-
0
- BE BE559116D patent/BE559116A/fr unknown
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