US 11,955,586 B2
Light-emitting diode lamp having high color-rendering property and color-rendering property enhancing method thereof
Fuxing Lu, Fujian (CN); and Zhirong Lin, Fujian (CN)
Assigned to Xiamen PVTECH Co., Ltd., Fujian (CN)
Filed by Xiamen PVTECH Co., Ltd., Fujian (CN)
Filed on Jun. 22, 2022, as Appl. No. 17/847,143.
Claims priority of application No. 202210247621.4 (CN), filed on Mar. 14, 2022.
Prior Publication US 2023/0290910 A1, Sep. 14, 2023
Int. Cl. F21K 9/64 (2016.01); F21Y 115/10 (2016.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01)
CPC H01L 33/504 (2013.01) [F21K 9/64 (2016.08); H01L 25/0753 (2013.01); F21Y 2115/10 (2016.08)] 6 Claims
OG exemplary drawing
 
1. A light-emitting diode (LED) lamp having high color-rendering property, comprising:
a lamp housing;
a light source board, disposed in the lamp housing;
a plurality of white light-emitting diode (LED), disposed on the light source board; and
a plurality of purple LEDs, disposed on the light source board, wherein wavelength range of lights emitted by the purple LEDs is within an ultraviolet A (UVA) band;
wherein a quantity of the white LEDs is equal to a quantity of the purple LEDs, and the white LEDs 13 and the purple LEDs 14 are alternately arranged, wherein the light source board is provided with only the white LEDs and the purple LEDs without other LEDs having different colors.