Industry Patents
Patent: 6561653
Multiple Light Valve Lighting Device or Apparatus with Wide Color Palette and Improved Contrast Ratio
(Click image for PDF of full patent)
| Patent Number: |
6561653 |
| Title: |
Multiple Light Valve Lighting Device or Apparatus with Wide Color Palette and Improved Contrast Ratio |
| Abstract: |
An apparatus is disclosed comprising a lamp which produces a first light
which may be a white light; a first light valve, a second light valve, and
a first aperture device, which may be a first electronically switchable
filter. The first aperture device or the first electronically switchable
filter function as selectively variable color separators. The first
aperture device or the first electronically switchable filter each can be
placed in a first state where the first light is separated into a first
color light and a first residual light, and a second state where the first
light is separated into a second color light and a second residual light.
The first light valve receives the first light in the first state and the
second light in the second state. The second light valve receives at least
a portion of the first residual light in the first state or at least a
portion of the second residual light in the second state.
|
| Country of Issue: |
US |
| First Named Inventor: |
Belliveau |
| Assignee: |
|
| Continuation or Divisional of: |
09/970845 |
| International Classification: |
G03B 21/00 |
| US Classification: |
353/31 |
| Issue Date: |
05-13-2003 |
| Filing Date: |
01-16-2002 |
| Application : |
10/046440 |
| Notes: |
High End Systems |
| Link to Patent at freepatentsonline.com: |
6561653 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6561653 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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