Patent ID: 8598618

Claim:
A white light emitting device comprising: a blue light emitting diode chip that emits blue light having a light emission peak wavelength of 430 nm to 490 nm; a first resin layer that seals the blue light emitting diode chip and includes a cured product of silicone resin having substantially no phosphors included therein; and a second resin layer that covers the first resin layer and includes phosphor powder, which absorbs the blue light and emits light having a light emission peak wavelength of 500 nm to 570 nm, and a cured product of transparent resin, wherein the phosphor powder has a composition represented by the following Formula (1): (Sr 1-x-y Ba x Eu y ) 2 SiO 4 (1) (in Formula (1), x and y satisfy a condition that 0.36≦x<0.5 and 0.05<y<0.3, an average particle diameter of the phosphor powder is within a range of 30 μm to 80 μm, a content of the phosphor powder in the second resin layer is 20 weight % to 50 weight %, and the first resin layer has thickness within a range of 200 μm to 2000 μm, the thickness being a length of a portion present in the first resin layer in a segment connecting a center portion of a bottom surface of the blue light emitting diode chip and a surface of the second resin layer.