BE445276A - - Google Patents
Info
- Publication number
- BE445276A BE445276A BE445276DA BE445276A BE 445276 A BE445276 A BE 445276A BE 445276D A BE445276D A BE 445276DA BE 445276 A BE445276 A BE 445276A
- Authority
- BE
- Belgium
- Prior art keywords
- screen
- groups
- group
- perforated
- small
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000001788 irregular Effects 0.000 claims description 7
- 229920002301 cellulose acetate Polymers 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 3
- 238000000576 coating method Methods 0.000 claims 3
- 230000001944 accentuation Effects 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000011229 interlayer Substances 0.000 claims 1
- 230000003387 muscular Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 241000894007 species Species 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 241000950314 Figura Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000035807 sensation 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
- G03B21/606—Projection screens characterised by the nature of the surface for relief projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE445276A true BE445276A (en:Method) |
Family
ID=101703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE445276D BE445276A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE445276A (en:Method) |
-
0
- BE BE445276D patent/BE445276A/fr unknown
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