Industry Patents
Patent: 7331692
Light Beam Projector With Filter Set Rotating On Its Own Axis
(Click image for PDF of full patent)
| Patent Number: |
7331692 |
| Title: |
Light Beam Projector With Filter Set Rotating On Its Own Axis |
| Abstract: |
A light beam projector has a light source and a reflector arranged to have
light generated by the light source converge into a light beam. The
reflector has a hollow curved surface with a focal point where the light
source is positioned, and a filter able to change the color of the light
beam based on the angle of incidence of the beam on the filter. The
filter has a plurality of filter elements arranged by sectors to form a
diaphragm between the light source and the light beam outlet from the
projector. In order to change the angle of incidence of the light beam on
the filter elements, the sectors are able to rotate on their axes from a
closed position, in which they fully intercept the light beam, to an open
position, in which they do not intercept the light beam, as well as to
all intermediate positions. The light beam projector has at least two
filtering systems, one including at least one of the diaphragms, placed
one after the other along the path of the light beam. Each sector forming
the diaphragms can be rotated independently of the other sectors.
|
| Country of Issue: |
US |
| First Named Inventor: |
Baiardi, Reposio, Versino |
| Assignee: |
Bruno Baiardi |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 17/02 |
| US Classification: |
362/322 |
| Issue Date: |
02-19-2008 |
| Filing Date: |
04-23-2003 |
| Application : |
10/513624 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7331692 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7331692 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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