Patent ID: 11885945
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Optics (Instruments)
Classification: CPC G  F | IPC F  G

Claim 0:
1. A lens for receiving light from at least one emitter, comprising:
a concave light entrance surface that extends into the lens from a light entry region the concave light entrance surface to receive the entire emission of at least one emitter, the concave light entrance surface symmetric about a central axis;
wherein at least a portion of the concave light entrance surface includes one or more lunes, each of which is planar and having a length and width,

wherein the length of each lune is greater than the width;
a light exit surface extending across a light exit region of the lens; and
a total internal reflective (TIR) outer surface shaped as a compound parabolic concentrator (CPC) extending between the light entry region and the light exit region.