BE411985A - - Google Patents
Info
- Publication number
- BE411985A BE411985A BE411985DA BE411985A BE 411985 A BE411985 A BE 411985A BE 411985D A BE411985D A BE 411985DA BE 411985 A BE411985 A BE 411985A
- Authority
- BE
- Belgium
- Prior art keywords
- image
- sheets
- screen
- small
- relief
- Prior art date
Links
- 230000000694 effects Effects 0.000 claims description 24
- 238000009792 diffusion process Methods 0.000 claims description 16
- 239000012780 transparent material Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 3
- 229920000742 Cotton Polymers 0.000 claims 1
- 230000000295 complement effect Effects 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 4
- 241001233242 Lontra Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000001944 accentuation Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000002459 sustained 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
- G03B21/606—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 |
|---|---|
| BE411985A true BE411985A (OSRAM) |
Family
ID=75831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE411985D BE411985A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE411985A (OSRAM) |
-
0
- BE BE411985D patent/BE411985A/fr unknown
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