Patent ID: 9097841
Filing Date: 2015-08-04
Classification: B29D,C03B,F24S,G02B,H01L,Y02E,Y02P

Abstract:
1. A lens assembly comprising: a first Fresnel lens comprising a first plurality of circular concentric lens elements, wherein each of said first plurality of circular concentric lens elements has a profile in a plane containing the center point of the lens elements and perpendicular to the plane of the lens elements which includes first and second distinct adjoining portions, wherein either the first or second distinct adjoining portion of each of said first plurality of circular concentric lens elements focuses incident light to one of at least two regions wherein the first portions of the lens elements belong to a first set of lens features and the second portions of the lens elements belong to a second set of lens features wherein the first set of lens features focus light towards a focal point at the optical center of the first Fresnel lens and the second set of lens features focus light radially disposed around the optical center of said first Fresnel lens such that the radially disposed light may be reflected to the focal point at the optical center of the first Fresnel lens by means of an edge mirror.