Industry Patents
Patent: 9560714
Color Temperature Adjustable, LED Based, White Light Source
(Click image for PDF of full patent)
| Patent Number: |
9560714 |
| Title: |
Color Temperature Adjustable, LED Based, White Light Source |
| Abstract: |
Assemblies of temperature monitored, semiconductor light emitting diodes
(LEDs) are disclosed that produce color temperature adjustable white
light sources. Warm-white LEDs are combined with green and blue LEDs to
produce light have continuous spectrum spanning the wavelength range of
400 to 700 nm with a white light point located at a selectable Planckian
locus location and a color rendering index greater than 80. The circuitry
includes LED temperature monitoring used to adjust LEDs spectral and
luminosity output. Alternate arrangements combine warm-white LEDs with
green, blue and red LEDs; warm-white and cool-white LEDs with green, blue
and red LEDs; warm-white and cool-white LEDs with green LEDs; and a
warm-white and cool-white LEDs with green-white LEDs.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hjerde |
| Assignee: |
|
| Continuation or Divisional of: |
|
| International Classification: |
H05B 33/08 |
| US Classification: |
H05B 33/086 |
| Issue Date: |
01-31-2017 |
| Filing Date: |
02-25-2016 |
| Application : |
15/053732 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
9560714 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
9560714 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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