Industry Patents
Patent: 6851833
Optical Configurations For Distributing Radially Collimated Light
(Click image for PDF of full patent)
| Patent Number: |
6851833 |
| Title: |
Optical Configurations For Distributing Radially Collimated Light |
| Abstract: |
A lighting assembly or a luminaire has a quasi point light source near a
surface onto which light rays are to impinge. There is a lens system which
includes a radially collimating first Fresnel lens at least partially
surrounding the light source and collimating at least some of the light
from the source to impinge upon the surface, and a second optical element,
which may also be a Fresnel lens, for receiving light rays and directing
the rays to impinge upon the surface at a position closer to the lens
system than the rays from the first Fresnel lens. This provides more
uniform lighting on the surface since the first Fresnel lens lighting
impinges upon the surface at a distance from the assembly, and the second
Fresnel lens provides fill in lighting between the assembly and the
lighting of the first Fresnel lens.
|
| Country of Issue: |
US |
| First Named Inventor: |
Simon |
| Assignee: |
|
| Continuation or Divisional of: |
|
| International Classification: |
F21V 5/04 |
| US Classification: |
362/268 |
| Issue Date: |
02-08-2005 |
| Filing Date: |
12-20-2000 |
| Application : |
09/741119 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
6851833 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6851833 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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