Industry Patents
Patent: 8840267
High Luminance Multicolor Illumination Devices and Related Methods and Projection System Using the Same
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| Patent Number: |
8840267 |
| Title: |
High Luminance Multicolor Illumination Devices and Related Methods and Projection System Using the Same |
| Abstract: |
An illumination device and a projection system using the same. The
illumination device includes two or more color channels each including
one or more light sources for generating a color light. At least one of
the color channels includes light sources of a first type for generating
a first (narrow band) light and light sources of a second type for
generating a second light. The dominant wavelengths of the first and
second lights are within 50 nm of each other, and the width of the
combined spectrum (sum of normalized spectra of the first and second
lights) is greater than the width of the spectrum of the first light by
at least 10 nm. A wavelength-based light combiner is used to combine the
color lights from the color channels into a combined light.
|
| Country of Issue: |
US |
| First Named Inventor: |
Li, Zhang, Yang, Hu |
| Assignee: |
Appotronics |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 9/16 |
| US Classification: |
362/231 |
| Issue Date: |
09-23-2014 |
| Filing Date: |
12-31-2011 |
| Application : |
13/341937 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
8840267 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
8840267 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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