Industry Patents
Patent: 7319298
Digitally Controlled Luminaire System
(Click image for PDF of full patent)
| Patent Number: |
7319298 |
| Title: |
Digitally Controlled Luminaire System |
| Abstract: |
The present invention provides a luminaire system capable of generating
light of a desired chromaticity and luminous flux output during
continuous operation with varying ambient operating temperature. The
luminaire system can be further capable of maintaining a desired
correlated colour temperature during dimming of the luminaire. The
luminaire system comprises one or more arrays of light-emitting elements
for generating light with a current driver system coupled thereto for
selectively supplying electrical drive current to each of the arrays,
wherein the current driver system is responsive to drive signals received
from a controller. The luminaire system further comprises an optical
sensor system for generating optical signals representative of
chromaticity and luminous flux output of the light. A heat sensing system
is operatively coupled to the one or more arrays for generating signals
representative of the junction temperatures of arrays of light-emitting
elements during operation. The luminaire system further comprises a
controller that is operatively connected to the current driver system,
the optical sensor system and the heat sensing system for receiving the
signals generated by each of these systems and is configured to generate
one or more drive signals for transmission to the current driver system
in response to the optical signals and thermal signals received from the
optical system and the heat sensing system, respectively, thereby
enabling a desired level of control of the output light.
|
| Country of Issue: |
US |
| First Named Inventor: |
Jungwirth, Robinson, Speier, Ashdown |
| Assignee: |
TIR Systems |
| Continuation or Divisional of: |
|
| International Classification: |
G05F 1/00 |
| US Classification: |
315/307 |
| Issue Date: |
01-15-2008 |
| Filing Date: |
12-21-2005 |
| Application : |
11/314190 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7319298 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7319298 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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