Industry Patents
Patent: 7499206
TIR Light Valve
(Click image for PDF of full patent)
| Patent Number: |
7499206 |
| Title: |
TIR Light Valve |
| Abstract: |
A light valve that switches light does so by enabling and disabling total
internal reflection (TIR) on a surface of the light valve. The disabling
of the TIR is accomplished by putting another optical element in contact
with the surface and then diffusing or changing the direction of the
light. These valves may be used in an array for a projection system or
one at a time. The mechanical mechanism to move the optical element is a
simple in that it only moves the optical element a small distance to
change the valve from an on position to an off position.
|
| Country of Issue: |
US |
| First Named Inventor: |
Richardson |
| Assignee: |
|
| Continuation or Divisional of: |
|
| International Classification: |
G02B 26/00 |
| US Classification: |
359/237 |
| Issue Date: |
03-03-2009 |
| Filing Date: |
12-09-2005 |
| Application : |
11/298768 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7499206 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7499206 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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