Regulation of wavelength shift and perceived color of solid state lighting with temperature variation
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United States of America Patent
Stats
-
Jun 10, 2014
Grant Date -
Dec 20, 2012
app pub date -
Aug 31, 2012
filing date -
Sep 21, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.
First Claim
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Family
International Classification(s)
- 2012 Application Filing Year
- G05F Class
- 1366 Applications Filed
- 870 Patents Issued To-Date
- 63.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- G05F Class
- 6.13 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 10, 2025 |
