Industry Patents
Patent: 7348742
Lighting Fixture with Synchronizable Optical Filter Wheel and Related Method
(Click image for PDF of full patent)
| Patent Number: |
7348742 |
| Title: |
Lighting Fixture with Synchronizable Optical Filter Wheel and Related Method |
| Abstract: |
A method of making an optical filter wheel of a device synchronizable with
an internal, rotatable virtual reference wheel, created in a memory of a
motor controller of the device, is disclosed. The method includes a
single trigger event that initializes rotation of the virtual reference
wheel. The controller determines the orientation of an optical filter
wheel of the device and maintains an ongoing representation of said
orientation over time. The controller controls the motor, which causes
the filter wheel to become coincident with the virtual reference wheel
after the trigger event. A self-contained light fixture is also
disclosed, which includes an optical filter wheel driven by an electric
motor that is synchronizable with an internal, rotatable virtual
reference wheel of the fixture. The method and light fixture permits
optical filter wheels of multiple light fixtures, which may be identical,
to synchronize with one another.
|
| Country of Issue: |
US |
| First Named Inventor: |
Takacs |
| Assignee: |
Energy Focus |
| Continuation or Divisional of: |
|
| International Classification: |
H02P 1/00 |
| US Classification: |
318/268 |
| Issue Date: |
03-25-2008 |
| Filing Date: |
07-21-2005 |
| Application : |
11/186556 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7348742 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7348742 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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