Author/Authors :
J.K.، Sheu, نويسنده , , S.J.، Chang, نويسنده , , C.H.، Kuo, نويسنده , , Y.K.، Su, نويسنده , , L.W.، Wu, نويسنده , , Y.C.، Lin, نويسنده , , W.C.، Lai, نويسنده , , J.M.، Tsai, نويسنده , , G.C.، Chi, نويسنده ,
Abstract :
Phosphor-converted light-emitting diodes (LEDs) were fabricated by precoating blue/green/red phosphors onto near ultraviolate (n-UV) LED chips prior to package into LED lamps. With a 20-mA injection current, it was found that the color temperature T/sub c/ was around 5900 K and the color-rendering index R/sub a/ was around 75 for the "n-UV+blue/green/red" white LED lamps. It was also found that no changes in color temperature T/sub c/ and color-rendering index R/sub a/ could be observed when we increased the injection from 20 to 60 mA. These results indicate that such "n-UV+blue/green/red" white LEDs are much more optically stable than the conventional "blue+yellow" LEDs.
Keywords :
CAPS , genetic background , gene interaction , ISSR , polyploidy , Secondary metabolites , glycoalkaloids
