BE504858A - - Google Patents
Info
- Publication number
- BE504858A BE504858A BE504858DA BE504858A BE 504858 A BE504858 A BE 504858A BE 504858D A BE504858D A BE 504858DA BE 504858 A BE504858 A BE 504858A
- Authority
- BE
- Belgium
- Prior art keywords
- rods
- projections
- screen
- projection
- white
- Prior art date
Links
- 238000004040 coloring Methods 0.000 description 3
- 230000002688 persistence Effects 0.000 description 2
- 230000002207 retinal effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 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
- G03B21/562—Screens moving during projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE504858A true BE504858A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=145566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE504858D BE504858A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE504858A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0359804A4 (en) * | 1988-03-31 | 1990-09-26 | Arnotts Biscuits Limited | Screen simulator window |
-
0
- BE BE504858D patent/BE504858A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0359804A4 (en) * | 1988-03-31 | 1990-09-26 | Arnotts Biscuits Limited | Screen simulator window |
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