Industry Patents

Patent: 8143809

LED Illuminating Device

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Patent Number:	8143809
Title:	LED Illuminating Device
Abstract:	A LED illuminating device includes: a power source device, a controller, an LED lighting device, and an LED unit 4 incorporating LEDs of a plurality of emission colors. The device is configured to mix the lights of the LEDs at an arbitrary proportion and set the lights in an arbitrary color mixture proportion on the basis of a dimming signal from the controller. The device is further configured so that: a coefficient specific to the LED unit at which an emission color of the LED unit becomes a desired color can be set to a signal value of the controller preliminarily set as a standard. The LED lighting device can control an emission amount of the LEDs having the respective emission colors by using a value calculated by a calculation expression employing the specific coefficient.
Country of Issue:	US
First Named Inventor:	Yamazaki, Sako
Assignee:	Panasonic
Continuation or Divisional of:
International Classification:	H05B 37/02
US Classification:	315/294
Issue Date:	03-27-2012
Filing Date:	06-24-2009
Application :	12/490556
Notes:
Link to Patent at freepatentsonline.com:	8143809 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	8143809 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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