Industry Patents
Patent: 6817737
Light Projector
(Click image for PDF of full patent)
| Patent Number: |
6817737 |
| Title: |
Light Projector |
| Abstract: |
A light projector is provided which includes an elliptical reflector, a
first spherical retro-reflector, the first retro-reflector having an first
aperture formed therein, the first aperture having a first diameter and a
first center-point, a second spherical retro-reflector located between the
elliptical reflector and the first retro-reflector, the second
retro-reflector having a second aperture formed therein, the second
aperture having a second diameter and a second center-point, the second
diameter smaller than the first diameter, the first and second
center-points lying along a common axis, and a light source, the light
source located at a foci of the elliptical reflector, the light source
lying along the common axis, the elliptical reflector reflecting light
emitted by the light source, the reflected light passing through the first
and second apertures, the first and second retro-reflectors being
positioned so as to reflect light emitted by the light source back towards
the light source. Also provided is a light projector that includes a light
source projecting a beam of light; and an optical element movable between
a first position in which the beam of light does not impinge upon the
optical element, a second position in which substantially all of the beam
of light impinges upon the optical element, and a plurality of
intermediate positions in which a portion of the beam of light impinges
upon the optical element, wherein the optical element is comprised of a
plurality of radially sectioned sub-elements.
|
| Country of Issue: |
US |
| First Named Inventor: |
Romano, Fry, Daniels |
| Assignee: |
Morpheus Technologies |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 9/00 |
| US Classification: |
362/293 |
| Issue Date: |
11-16-2004 |
| Filing Date: |
10-19-2001 |
| Application : |
10/038521 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6817737 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6817737 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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