Patent ID: 7026756

Claim:
A light emitting device which comprises a light emitting component having an active layer of a semiconductor and a phosphor capable of absorbing a part of light emitted from the light emitting component and emitting light of wavelength different from that of the absorbed light, wherein: a) said light emitting component is an LED which has an active layer comprising a gallium nitride based semiconductor containing Indium and is capable of emitting a blue color light which spectrum has a peak wavelength within the range from 420 to 490 nm, b) said phosphor is a garnet fluorescent material activated with cerium which is capable of absorbing a part of the blue color light which spectrum has the peak wavelength within the range from 420 to 490 nm and thereby emitting light having a broad emission spectrum comprising a peak wavelength existing around the range from 510 to 600 nm and a tail continuing beyond 700 nm, and c) said emission spectrum emitted from the garnet fluorescent material activated with cerium and a spectrum of an unabsorbed light passed through said the garnet fluorescent material from said LED are capable of overlapping each other to make a continuous combined spectrum.