Industry Patents
Patent: 7298558
Electronic Adjustable Color Filter Device
(Click image for PDF of full patent)
| Patent Number: |
7298558 |
| Title: |
Electronic Adjustable Color Filter Device |
| Abstract: |
An electronically adjustable, combinational color filter device is
provided for generating color light. Incoming light is split in a
polarizing beam splitter/combiner into a first and a second element of
light. One or more wave plates operate to modify the polarization state
of the first element of light, and one or more dichroic reflective
filters reflect portions of the first element of light having a
predetermined wavelength. Similarly, one or more wave plates operate to
modify the polarization state of the second element of light, and one or
more dichroic reflective filters reflect portions of the second element
of light having a predetermined wavelength. Reflected portions of the
first element and the second elements of light are combined in the
polarizing beam splitter/combiner to create color light. A spatial light
modulator may be used to create color images.
|
| Country of Issue: |
US |
| First Named Inventor: |
Campbell, Wen |
| Assignee: |
Teledyne Licensing |
| Continuation or Divisional of: |
|
| International Classification: |
G02B 27/14 |
| US Classification: |
359/634 |
| Issue Date: |
11-20-2007 |
| Filing Date: |
09-30-2005 |
| Application : |
11/240875 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7298558 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7298558 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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