Patent ID: 7527991
Filing Date: 2009-05-05
Classification: C09K,H01L,H05B

Abstract:
1. A method of manufacturing a light emitting apparatus comprising a light emitting device, a base material having a cup in which the light emitting device is mounted, a fluorescent substance capable of absorbing at least a portion of light emitted by the light emitting device and emitting light of a different wavelength, a color converting member which contains the fluorescent substance and directly coats the light emitting device, and a molding member covering the color converting member, said method comprising: adding a powdered resin in a curing solution containing an acid anhydride curing agent as a main component at a temperature lower than a melting point of the powdered resin to prepare a mixed solution, adding a powdered fluorescent substance having a particle size in a range from 15 micron to 50 micron in the mixed solution, and uniformly dispersing the powdered fluorescent substance to obtain a dispersion liquid; and potting the dispersion liquid into the cup to coat the light emitting device with the dispersion liquid, and heating to a temperature higher than a melting point of the resin, thereby to cure the dispersion liquid to form a color converting member wherein said fluorescent substance is dispersed.