IP Library Granted Patent US 9,863,588
Granted Patent B2
US 9,863,588 · App. 14/338,942 · Granted Jan 9, 2018

Serially-connected light emitting diodes, methods of forming same, and luminaires containing same

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Quick Facts
Patent No.
US 9,863,588
App. No.
14/338,942
Granted
Jan 9, 2018
Kind
B2
Abstract

A luminaire comprising a first and second terminal connected to an alternating current power source having a period, a first LED light source electrically coupled to each of the first and second terminals, and a second LED light source electrically coupled to each of the first and second terminals. The first LED light source comprises a first color conversion layer having a first emission latency.

Claims (23)

1. A luminaire comprising:

a first and second terminal connected to an alternating current power source having a period;

a first LED light source electrically coupled to each of the first and second terminals; and

a second LED light source electrically coupled to each of the first and second terminals;

wherein the first LED light source comprises a first color conversion layer having a first emission latency;

wherein the second LED light source comprises a second color conversion layer having a second emission latency; and

wherein the first emission latency and the second emission latency are non-equivalent latencies produced by the alternating current provided to the first LED light source and the second LED light source;

wherein the first emission latency and the second emission latency are asynchronous with a polyphase frequency; and

wherein the first emission latency is asynchronous with at least one frequency within a range from 25 Hz to 133 Hz.

2. The luminaire according to claim 1 wherein the first LED light source and the second LED light source include a lighting die comprising multiple semiconductor layers, a conductive material layer, and an active region.

3. The luminaire according to claim 1 wherein the first LED light source is configured to emit light within a first wavelength range corresponding to a first color and the second LED light source is configured to emit light within a second wavelength range corresponding to a second color that is different than the first color.

4. A luminaire comprising:

a first and second terminal connected to an alternating current power source having a period;

a single lighting die comprising:

a first LED light source electrically coupled to each of the first and second terminals; and

a second LED light source electrically coupled to each of the first and second terminals;

a plurality of trenches; and

a substrate;

wherein the first LED light source comprises a first color conversion layer having a first emission latency;

wherein the second LED light source comprises a second color conversion layer having a second emission latency; and

wherein the first emission latency and the second emission latency are non-equivalent latencies produced by the alternating current provided to the first LED light source and the second LED light source;

wherein the plurality of trenches are configured to penetrate through the first LED light source, the second LED light source, and the substrate;

wherein the first emission latency and the second emission latency are asynchronous with a polyphase frequency.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Apr 26, 2017
From: ACF FINCO I LP, A DELAWARE LIMITED PARTNERSHIP
To: LIGHTING SCIENCE GROUP CORPORATION, A DELAWARE CORPORATION; BIOLOGICAL ILLUMINATION, LLC, A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 042340/0309 →
SECURITY INTEREST Recorded Nov 3, 2016
From: LIGHTING SCIENCE GROUP CORPORATION; BIOLOGICAL ILLUMINATION, LLC
To: ACF FINCO I LP, AS AGENT
Reel/Frame 040555/0884 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2014
From: MAXIK, FREDRIC S; BARTINE, DAVID E; SOLER, ROBERT R; SCONE, THEODORE; OOSTDYK, MARK ANDREW
To: LIGHTING SCIENCE GROUP CORRPORATION
Reel/Frame 034024/0511 →