BE402379A - - Google Patents
Info
- Publication number
- BE402379A BE402379A BE402379DA BE402379A BE 402379 A BE402379 A BE 402379A BE 402379D A BE402379D A BE 402379DA BE 402379 A BE402379 A BE 402379A
- Authority
- BE
- Belgium
- Prior art keywords
- tape
- projection
- under
- screen
- roller
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241000246141 Cytisus austriacus Species 0.000 description 1
- 244000191761 Sida cordifolia Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002356 single layer 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
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
- G03B21/625—Lenticular translucent screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE402379A true BE402379A (enrdf_load_stackoverflow) |
Family
ID=68163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE402379D BE402379A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE402379A (enrdf_load_stackoverflow) |
-
0
- BE BE402379D patent/BE402379A/fr unknown
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