Industry Patents
Patent: 7758208
Multi-Primary LED Collimation Optic Assemblies
(Click image for PDF of full patent)
| Patent Number: |
7758208 |
| Title: |
Multi-Primary LED Collimation Optic Assemblies |
| Abstract: |
The present invention relates to an optical assembly which improves color
uniformity and improved collimation of light produced by multiple LED
light sources in a light engine. The optical assembly is specifically
tailored to match the placement of the solid-state emitters making up the
light engine or light producing element. Specifically, a shaped free-form
spline patch inner collimation lens having an optimized cross-sectional
shape and micro-ridges is used to disperse light; multi-lobe TIR
collimation lens having an optimized cross-sectional shape and
micro-ridges is used to disperse and redistribute phase as well as
provide collimation; primary mixing lenslet array having an optimized
surface is used to disperse light from the light emitter; a spline
profile reflector further mixes and collimates the light; a secondary
lenslet array further mixes the light; and a secondary collimation lens
further collimates the light.
|
| Country of Issue: |
US |
| First Named Inventor: |
Bailey |
| Assignee: |
Lighting Science Group |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 9/00 |
| US Classification: |
362/231 |
| Issue Date: |
07-20-2010 |
| Filing Date: |
12-26-2007 |
| Application : |
11/964523 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7758208 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7758208 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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