Industry Patents
Patent: 7573210
Method and System for Feedback and Control of a Luminaire
(Click image for PDF of full patent)
| Patent Number: |
7573210 |
| Title: |
Method and System for Feedback and Control of a Luminaire |
| Abstract: |
A method and system for controlling the chromaticity and luminous flux
output of a digitally controlled luminaire. The luminaire includes one or
more light-emitting elements and one or more light sensors for providing
optical feedback, which is filtered to remove undesired frequencies. The
method and system employs a control system which can sample the filtered
signals from the light sensors according to a predetermined feedback
sampling frequency scheme, wherein this scheme is specifically configured
to provide sufficient iterations of the feedback loop to be performed for
adjustment of the chromaticity and luminous flux output of the
light-emitting elements, without perceptible visual flicker or momentary
chromaticity shifts.
|
| Country of Issue: |
US |
| First Named Inventor: |
Ashdown, Robinson |
| Assignee: |
Philips Electronics |
| Continuation or Divisional of: |
7573209 |
| International Classification: |
G05F 1/00 |
| US Classification: |
315/307 |
| Issue Date: |
08-11-2009 |
| Filing Date: |
06-26-2006 |
| Application : |
11/426338 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
7573210 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7573210 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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