Projection screen
US-11960199-B2 · Apr 16, 2024 · US
Curved back-projection screen
US9513541B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9513541-B2 |
| Application number | US-201013876696-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 28, 2010 |
| Priority date | Oct 1, 2010 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
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Abstract
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A curved back-projection screen having an angle of curvature greater than 180° is described such as a wrap-around cylindrical or dome screen. The screen includes a first layer and a second synthetic resin diffusing layer on the first layer, the second synthetic resin diffusing layer containing a light absorbing material and light diffusing particles embedded in a resin material, with the second synthetic resin diffusing layer having a value of the product of the absorption coefficient and thickness of between 0.1 and 2. The second synthetic resin diffusing layer can be applied by spraying.
First claim
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The invention claimed is: 1. A curved back-projection screen having an angle of curvature greater than 180°, the screen comprising a first layer and a second diffusing layer on the first layer, the second diffusing layer having a uniform thickness, the second diffusing layer containing a light absorbing material and light diffusing particles, the second diffusing layer having a value of the product of the absorption coefficient and thickness of between 0.1 and 5.…
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- What does patent US9513541B2 cover?
- A curved back-projection screen having an angle of curvature greater than 180° is described such as a wrap-around cylindrical or dome screen. The screen includes a first layer and a second synthetic resin diffusing layer on the first layer, the second synthetic resin diffusing layer containing a light absorbing material and light diffusing particles embedded in a resin material, with the second…
- Who is the assignee on this patent?
- Vermeirsch Koenraad, Ducasteele Stefaan, Matthys Geert, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G03B21/62. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).