Patent ID: 8063411

Claim:
A photoelectric semiconductor device, comprising: a light emitting diode (LED) chip being capable of generating a light output having a first light emitting strength (I 1 ) and a second light emitting strength (I 2 ) different from the first light emitting strength (I 1 ); a base, the LED chip fixed on the base; a first layer covering the LED chip, wherein the first layer is transparent high polymer colloid; and a second layer covering the first layer and containing at least one kind of phosphor powder, the second layer comprising at least a first section and a second section, wherein the first section has a first phosphor powder concentration (D 1 ) corresponding to the first light emitting strength (I 1 ), the second section has a second phosphor powder concentration (D 2 ) corresponding to the second light emitting strength (I 2 ), the first phosphor powder concentration is different from the second phosphor powder concentration, and I 1 /D 1 =I 2 /D 2 .