Patent · US Active

Light engines with dynamically controllable light distribution

US10845529B2 · kind B2 · utility

3Cited by

20References

20Claims

0Family size

Assignee

LUMILEDS LLC · US

Inventors

Frederic Stephane Diana · San Jose, US
Yifeng Qiu · San Jose, US
Michael Wasilko · San Jose, US
Nazila Soleimani · San Jose, US
Jeroen Den Breejen · San Jose, US
Alan Andrew McReynolds · Los Altos, US
Gregory Donald Guth · Eindhoven, NL

Key dates

Filing date	May 3, 2019
Grant date	Nov 24, 2020
Priority date	—
Expiry date	May 3, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH05B47/198
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light engine system is disclosed in which the light engine system comprises a light engine. The light engine comprises independently addressable LED segments, each LED segment comprising LEDs and a flexible PCB to which the segments are attached. A light guide plate (LGP) is provided into which light from the segments is introduced, in which the light is guided, and from which the light exits to provide illumination. The segments emit light in all directions of a plane created by the LGP. A diffuser opposes a first surface of the LGP over substantially the entirety of the LGP. The diffuser diffuses light exiting the LGP into the environment away from the light engine.

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