Patent ID: 7204609

Claim:
A light source unit comprising: a printed circuit board; a wiring land formed on said printed circuit board; a light-emitting diode (LED) element surface-mounted on said printed circuit board; a bonding wire connecting between said LED element and said wiring land; and a reflector unit comprising a rigid frame member and a reflector, said reflector unit being surface mounted on said printed circuit board to surround said LED element and being fabricated independently of said printed circuit board to improve rigidity of said frame member; wherein said reflector unit being formed integrally with said frame member so that said reflector unit can be arranged relative to said LED element with accuracy and without change over time to provide a uniform and stable reflecting face configuration; wherein said reflector is connected to an inner side of said frame member and supported by said frame member, said reflector being arranged between said LED element and said wiring land for directing a beam emitted from said LED element toward an object to be illuminated, wherein said frame member comprises a rectangular frame member having long-side portions and short-side portions, wherein said reflector is arranged along said long-side portions and rigidly formed in unison with said frame member, wherein said LED elements are arranged to form an LED array, and wherein said reflector has a reflecting surface extending along said LED array.