BE409109A - - Google Patents
Info
- Publication number
- BE409109A BE409109A BE409109DA BE409109A BE 409109 A BE409109 A BE 409109A BE 409109D A BE409109D A BE 409109DA BE 409109 A BE409109 A BE 409109A
- Authority
- BE
- Belgium
- Prior art keywords
- sheets
- angular
- portions
- reentrants
- image
- Prior art date
Links
- 238000009792 diffusion process Methods 0.000 claims description 12
- 239000012780 transparent material Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004049 embossing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 206010002383 Angina Pectoris Diseases 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 claims 1
- 241000428199 Mustelinae Species 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000470 constituent Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000008961 swelling 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)
- Optical Elements Other Than Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE409109A true BE409109A (enrdf_load_html_response) |
Family
ID=73562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE409109D BE409109A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE409109A (enrdf_load_html_response) |
-
0
- BE BE409109D patent/BE409109A/fr unknown
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