BE652200A - - Google Patents
Info
- Publication number
- BE652200A BE652200A BE652200DA BE652200A BE 652200 A BE652200 A BE 652200A BE 652200D A BE652200D A BE 652200DA BE 652200 A BE652200 A BE 652200A
- Authority
- BE
- Belgium
- Prior art keywords
- paragraph
- screen
- curve
- formula
- focus
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000003415 peat Substances 0.000 claims description 2
- 230000005499 meniscus Effects 0.000 claims 1
- FFEARJCKVFRZRR-UHFFFAOYSA-N methionine Chemical compound CSCCC(N)C(O)=O FFEARJCKVFRZRR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 241000234435 Lilium Species 0.000 description 1
- 241000282330 Procyon lotor Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 244000144987 brood Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 239000011505 plaster 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE652200A true BE652200A (enrdf_load_stackoverflow) |
Family
ID=206132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE652200D BE652200A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE652200A (enrdf_load_stackoverflow) |
-
0
- BE BE652200D patent/BE652200A/fr unknown
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