Light directing apparatus

Patent metadata

Field	Value
Publication number	US-9404635-B2
Application number	US-201314084920-A
Country	US
Kind code	B2
Filing date	Nov 20, 2013
Priority date	May 13, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A light directing apparatus includes an optical substrate having first and second sides, a compound lens outer surface (CLOS) on a first portion of the first side, and first and second protrusions on a second portion of the first side. The CLOS is in optical communication with the second side, the CLOS having mirror image symmetry about a medial plane that contains a centerline of the CLOS. The first protrusion is disposed proximate the CLOS, and in optical communication with the second side. The second protrusion is disposed proximate the first protrusion, and in optical communication with the second side. The first protrusion is disposed between the second protrusion and the CLOS. The first and second protrusions each have a curved apex such that first and second planar section cuts through the optical substrate perpendicular to the medial plane cut twice through each curved apex.

First claim

What is claimed is:

1. A light directing apparatus, comprising:
an optical substrate having a first side and a second side;
a compound lens outer surface on a first portion of the first side of the optical substrate, the compound lens outer surface disposed in optical communication with the second side of the optical substrate, the compound lens outer surface having mirror image symmetry about a medial plane that contains a centerline of the compound lens outer surface;
a firs…

Assignees

• Lighting Science Group Corp

Inventors

• Kelley Ryan

Classifications

• G02B19/0061

  Physics · mapped topic

• G02B19/0028

  Physics · mapped topic

• F21Y2115/10

  Mechanical Engineering · mapped topic

• F21V7/0091

  Mechanical Engineering · mapped topic

• F21V5/045 Primary

  Mechanical Engineering · mapped topic