Design of reflector using zoned method based on non-imaging optics

A brief and fundamental method for design of rotational symmetric reflector, called zoned method, was introduced based on non-imaging optics. The design idea of zoned method was presented: the light distribution of light source and luminaire were divided into pieces of zone bands by equal angle interval, the comparative analysis of flux difference of these two series of zone was did, and the relation between rays from light source and that from luminaire was determined, then the slope of the reflective curve at each reflective points was confirmed, finally the total shape of reflective curve was shown in 3D software. Moreover, detail design steps were described, and the precise design of reflector was verified with a high design matching ratio of 98.4%, by taking a special application for LED source for example.