Patent ID: 7781953
Filing Date: 2010-08-24
Classification: H01L,Y10S

Abstract:
1. A light-emitting device with open-loop control, comprising: a light emitting diode (LED) capable of emitting a blue light; and a mix-light adjust portion comprising a first fluorescent material and a second fluorescent material that are capable of being excited by the blue light, wherein the first fluorescent material and the second fluorescent material satisfy at least one of the following conditions (1) and (2): (1) the first fluorescent material is (Ba (2) the second fluorescent material is a garnet phosphor activated by cerium (Ce) and composed of at least one element of yttrium (Y), terbium (Tb), lanthanum (La), gadolinium (Gd), and samarium (Sm) and at least one element of aluminum (Al), gallium (Ga), indium (In) and iron (Fe); or M