CA2203266A1 - Projecteur a source de lumiere equipee de plusieurs lampes - Google Patents
Projecteur a source de lumiere equipee de plusieurs lampesInfo
- Publication number
- CA2203266A1 CA2203266A1 CA 2203266 CA2203266A CA2203266A1 CA 2203266 A1 CA2203266 A1 CA 2203266A1 CA 2203266 CA2203266 CA 2203266 CA 2203266 A CA2203266 A CA 2203266A CA 2203266 A1 CA2203266 A1 CA 2203266A1
- Authority
- CA
- Canada
- Prior art keywords
- light
- film
- projection system
- angle
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003292 diminished effect Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 5
- 229920002972 Acrylic fiber Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- 150000005309 metal halides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005297 pyrex Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000005331 crown glasses (windows) Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
La présente invention concerne un système de projection (18) qui combine de manière efficace la lumière fournie par plusieurs lampes (19A, 19B) dont les images sont concentrées en un point commun. La luminosité projetée sur l'écran est multipliée par rapport à celle d'une lampe unique classique de puissance équivalente. On peut accroître ou réduire la luminosité de l'écran en mettant en marche ou à l'arrêt des lampes individuelles (19A, 19B), ce qui règle le niveau de lumière pour les diapositives classiques de rétroprojection ou les panneaux d'affichage par projection à cristaux liquides, à faible taux de transmission.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/344,135 | 1994-11-23 | ||
| US08/344,135 US5504544A (en) | 1994-11-23 | 1994-11-23 | Projector with multiple lamp light source |
| PCT/US1995/012896 WO1996016351A1 (fr) | 1994-11-23 | 1995-10-10 | Projecteur a source de lumiere equipee de plusieurs lampes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2203266A1 true CA2203266A1 (fr) | 1996-05-30 |
Family
ID=29405770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2203266 Abandoned CA2203266A1 (fr) | 1994-11-23 | 1995-10-10 | Projecteur a source de lumiere equipee de plusieurs lampes |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2203266A1 (fr) |
-
1995
- 1995-10-10 CA CA 2203266 patent/CA2203266A1/fr not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |