Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Ren-Tao Sun"'
Autor:
Jian Hao, Hong-Liang Ke, Yang Shiyu, Miao Peixian, Ji Wang, Cui Jingzhong, Yang Wei, Tu Jianhui, Ren-Tao Sun, Li-Li Zhu, Bao Yang
Publikováno v:
Optik. 180:517-525
Temperature dependent relaxation time of 87Rb atoms, namely the longitudinal relaxation lifetime T1 and the transverse relaxation lifetime T2 are studied respectively by using the Franzen method and by measuring the optical rotation of a weak, linear
Autor:
Jian Hao, Cui Jingzhong, Ren-Tao Sun, Miao Peixian, Hong-Liang Ke, Qiang Sun, Tu Jianhui, Chao-Quan Wang
Publikováno v:
Applied optics. 57(4)
The lumen degradation of LED lamps undergoing an accelerated aging test is investigated. The entire LED lamp is divided into three subsystems, namely, driver, lampshade, and LED light source. The parameters of output power [Watts (W)], transmittance
Publikováno v:
Applied Optics. 58:1855
Although the predicted lifetime of the classical 6000 h test given by Energy Star is taken as the normal lifetime of LED products in most research and applications, the aim of this study is to explore the error in lifetime prediction of LED lamps bas