Patent ID: 7470042

Claim:
A luminescent light source, comprising: a curve shaped reflecting mirror for reflecting light, a light guide unit arranged on a light reflection surface of the reflecting mirror, and a light emitting device arranged in the central area of the reflecting mirror and outputting light to the light guide unit, wherein the light guide unit has a light output surface for outputting to the outside light outputted from the light emitting device and light of the light emitting device reflected by the reflecting mirror, the reflecting mirror has a light reflection surface for reflecting light outputted from the light emitting device and reflected by the light output surface of the light guide unit, wherein the light reflection surface comprises a plurality of reflection areas arranged along at least two directions, each of the reflection areas having a plurality of characterizing parameters that characterize the curve of the reflection area, and at least one of the plurality of characterizing parameters is different in adjacent reflection areas, wherein each of the reflection areas is a conic surface, and the characterizing parameter is a curvature radius or a conic coefficient that characterizes the conic surface.