Patent · US Active

LED lens

US8556452B2 · kind B2 · utility

71Cited by

681References

22Claims

0Family size

Assignee

iLumisys, Inc. · US

Inventors

David L. Simon · Mansfield Center, US
John Ivey · Farmington Hills, US
Gordon R. Lavering · Belmont, US

Key dates

Filing date	Jan 14, 2010
Grant date	Oct 15, 2013
Priority date	—
Expiry date	Dec 6, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/853
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light modifier for an LED producing light about a central axis is provided. The light modifier includes a lens defining an indentation. The indentation is angled relative to the central axis by an amount less than a complementary angle of a critical angle of the lens along the indentation. The lens can reduce the appearance of a bright spot created by the LED.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.