Industry Patents
Patent: RE41240
Zoomable Beamspreader With Matched Optical Surfaces For Non-Imaging Illumination Applications
(Click image for PDF of full patent)
| Patent Number: |
RE41240 |
| Title: |
Zoomable Beamspreader With Matched Optical Surfaces For Non-Imaging Illumination Applications |
| Abstract: |
A zoomable light beam spreader comprising first and second multiple-lens
arrays includes a plurality of plano-convex lenses in correspondence with
a plurality of plano-concave lenses having matched, curved optical
surfaces. In a zero-power state, the two multiple-lens arrays are very
closely spaced so that the matched convex and concave surfaces
effectively cancel each other optically but, as the two arrays are
separated coaxially along the axis of a light beam, beam divergence angle
increases as a function of the distance of separation. A large amount of
beam divergence is obtained when the curved surfaces of the plano-concave
lenses of the second array are positioned beyond the focus points of the
plano-convex lenses of the first array.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hough |
| Assignee: |
Genlyte |
| Continuation or Divisional of: |
6282027 |
| International Classification: |
G02B 27/10 |
| US Classification: |
359/618 |
| Issue Date: |
04-20-2010 |
| Filing Date: |
04-25-2003 |
| Application : |
10/424334 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
RE41240 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
RE41240 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.
Disclaimer: This web site is not intended to offer comprehensive or sufficient
information to enable a full legal analysis of a patent or potential
infringement. The information provided on this web site is intended
as general information only, and is not intended to serve as legal
opinion, legal advice or as a substitute for legal counsel. If you
have a question about a specific factual situation, you should
contact an attorney directly
|
