| 摘要 |
PURPOSE: An LED lamp for controlling color temperature is provided to control the color temperature by using a white LED and plural LEDs of different colors to correct the white emission. CONSTITUTION: An LED lamp for controlling color temperature includes a main LED, an auxiliary LED, and a filter. The main LED is formed with an LED for controlling an emission peak wavelength on a blue region of 430 to 470nm and a YAG phosphor for controlling a phosphoric peak wavelength on a yellow-green region of 530 to 570nm. The auxiliary LED is used for controlling a peak wavelength of an invisible region. The filter is excited by the auxiliary LED. The filter includes a phosphor for radiating the light having the peak wavelength on the blue region of 430 to 340nm or the peak wavelength on a flame-colored region of 590 to 700nm. The color temperature is controlled within a range of 3000 to 8000 K by mixing the light of the main LED and the light of the auxiliary LED. |
