Industry Patents
Patent: 7148470
Optical Integrating Chamber Lighting Using Multiple Color Sources
(Click image for PDF of full patent)
| Patent Number: |
7148470 |
| Title: |
Optical Integrating Chamber Lighting Using Multiple Color Sources |
| Abstract: |
A system to provide radiant energy of selectable spectral characteristic
(e.g. a selectable color combination of light) uses an optical
integrating cavity to combine energy of different wavelengths from
different sources. Sources of radiant energy of different wavelengths,
typically different-color LEDs, supply radiant energy into the interior
of the cavity. The cavity has a diffusely reflective interior surface and
an aperture for allowing emission of combined radiant energy. Control of
the intensity of emission of the sources sets the amount of each
wavelength of energy in the combined output and thus determines a
spectral characteristic of the radiant energy output through the
aperture. A variety of different elements may optically process the
combined light output, such a deflector, a variable iris, a lens, a
variable focusing lens system, a collimator, a holographic diffuser and
combinations thereof. Such systems are useful in various luminous
applications as well as various illumination applications.
|
| Country of Issue: |
US |
| First Named Inventor: |
Rains, May, Ramer |
| Assignee: |
Advanced Optical Technologies |
| Continuation or Divisional of: |
6995355 |
| International Classification: |
F21V 9/00 |
| US Classification: |
250/228 |
| Issue Date: |
12-12-2006 |
| Filing Date: |
12-06-2005 |
| Application : |
11/294564 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7148470 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7148470 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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