The Development of LED Filament Standard Lamp
LIU Hui
LIU Jian
ZHAO Weiqiang
LIN Yandong
SU Ying
Jiang Lin
Abstract：According to the performance requirements of standard lamp, a kind of LED filament standard lamp has been developed.This kind of LED lamp has a shorter warm-up time about 5~9 min, but the other LED lamps need 30 min at least.The short-term stability of luminous flux is less than 0.10%, and the relative fluctuation of luminous flux is less than 0.16% during 35-hours uninterrupted burning.The maximum descent of luminous flux is 2.3% after 6 045 h burning, which is one-thirtieth of incandescent standard lamp.The long-term stability has been investigated, the relative fluctuation of luminous flux is less than 0.3% during the 10-month measurement, it is also insensitive to shock.The main characteristics of this LED filament lamp are superior to the criteria for incandescent lamp on JJG 247-2008 Calibration Specification for Incandescent Bulb.It should be a candidate of luminous flux standard lamp in "Future photometry based on solid-state lighting products"progrom of CCPR and CIE.
Keywords：standard lampLED-based standard lamplight-emitting diodeluminous fluxphotometryLED filament lamp
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 13-16,31 )