Industry Patents
Patent: 6474837
Lighting Device with Beam Altering Mechanism Incorporating a Plurality of Light Sources
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| Patent Number: |
6474837 |
| Title: |
Lighting Device with Beam Altering Mechanism Incorporating a Plurality of Light Sources |
| Abstract: |
An apparatus is disclosed incorporating a plurality of light sources, such
as a plurality of lighting emitting diodes, and a beam altering mechanism
for altering the light projected by the plurality of light sources.
Several mechanisms for altering the beam produced by the plurality of
light emitting diodes are disclosed. The present invention can be used in
for example hand held flashlights and theatrical lighting. The present
invention in one embodiment discloses a hand held flashlight incorporating
a plurality of light sources and a beam altering mechanism capable of
changing the color of the emitted light beam produced by the flashlight.
The beam altering mechanism may be comprised of an aperture device, which
may be an aperture plate, provided with a plurality of apertures that are
strategically aligned with the individual light beams emitted from each of
the plurality of light sources. In one embodiment additional apertures
containing color modifying filters may also be strategically placed in the
aperture device and these modifying filters can be aligned over each of
the light sources by rotation of the aperture device. The aperture device
may be round and may be mounted centrally to a substrate on which the
plurality of light sources are mounted. The plurality of light sources can
be arranged symmetrically to provide uniform illumination. The aperture
device can be arranged with a plurality of apertures that contain light
refractive optics that are strategically placed in the aperture device and
provide a means for changing the focus of the overall beam produced by for
example a flashlight. The plurality of light sources and the aperture
device may be incorporated into a remote controlled lighting device.
|
| Country of Issue: |
US |
| First Named Inventor: |
Belliveau |
| Assignee: |
|
| Continuation or Divisional of: |
|
| International Classification: |
F21V 17/02 |
| US Classification: |
362/231 |
| Issue Date: |
11-05-2002 |
| Filing Date: |
11-20-2000 |
| Application : |
09/716713 |
| Notes: |
High End Systems |
| Link to Patent at freepatentsonline.com: |
6474837 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6474837 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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