Invention Grant
US08749177B2 Regulation of wavelength shift and perceived color of solid state lighting with temperature variation 有权
固态照明随温度变化的波长偏移和感知颜色的调节

Regulation of wavelength shift and perceived color of solid state lighting with temperature variation
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.
Information query
Patent Agency Ranking
0/0