Patent ID: 6992739

Claim:
A light reflector having a plurality of projected portions or recessed portions, wherein: the reflector has n first projected portions or recessed portions at positions corresponding respectively to vertexes of an equilateral polygon having n sides, n being an odd number equal to or greater than 3; the light reflector comprises a plurality of projected portion sets or recessed portion sets, each of the projected portion sets or recessed portion sets consisting of said n first projected portions or recessed portions; the plurality of projected portion sets or recessed portion sets are constructed such that at least two of the plurality of projected portion sets or recessed portion sets are arranged around one of the plurality of projected portion sets or recessed portion sets, each of the at least two projected portion sets or recessed portion sets being adjacent to said one projected portion set or recessed portion set; and said plurality of projected portion sets or recessed portion sets are constructed such that six of said plurality of projected portion sets or recessed portion sets are arranged around one of said plurality of projected portion sets or recessed portion sets, each of said six projected portion sets or recessed portion sets being adjacent to said one projected portion set or recessed portion set.