Patent ID: 7207691

Claim:
A light emitting device comprising: three light emitting sources and a phosphor, with the three light sources consisting of light emitting diodes (LED) emitting lights having different wavelength; wherein: a first light source is formed by at least one first LED capable of emitting a blue light having a wavelength ranging between 360 nm and 480 nm; a second light source is formed by at least one second LED capable of emitted a blue to green light having a wavelength ranging between 480 nm and 570 nm; a third light source is formed by at least one third LED capable of emitting a red light having a wavelength ranging between 585 nm and 780 nm; wherein the phosphor is BxOy 3 ; and a phosphor is for absorbing lights having different wavelengths and emitted by the first and second light sources, and is excited to emit a distinct light having a wavelength distinct from those of the first and second light sources; wherein, the distinct light is blended with the red light emitted from the third light source and the lights emitted from the first and second light sources producing a blended light to obtain a white light; the distinct light has a wavelength between 500 nm and 585 nm.