COLOR TEMPERATURE ADJUSTING METHOD OF SOLID STATE LIGHT EMITTING DEVICE

摘要

A color temperature adjusting method of solid state light emitting device, including steps: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a red light source, a green light source and a blue light source; and adjusting currents applied to the adjusting light sources to obtain an adjusting light, wherein the adjusting light mixes with the main light of the main light source to obtain an outgoing light of a second color temperature. The second color temperature is different from the first color temperature. The outgoing light has a chromaticity coordinate at a Plank's curve on a CIE 1931 chromaticity coordinates chart.

主权项

1. A color temperature adjusting method of solid state light emitting device, comprising:
providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a plurality of red light sources, a plurality of green light sources and a plurality of blue light sources which alternately surround the main light source; and adjusting currents applied to each of the red, green and blue light sources of the adjusting light source to obtain an adjusting light, the adjusting light mixing with the main light of the main light source to obtain an outgoing light of a second color temperature; wherein the second color temperature is different from the first color temperature and wherein a chromaticity coordinate of the outgoing light is at a Plank's curve on a CIE 1931 chromaticity coordinates chart.