IP Library Granted Patent US 8,360,617
Granted Patent B2
US 8,360,617 · App. 12/625,727 · Granted Jan 29, 2013

Lighting system including LED with glass-coated quantum-dots

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Quick Facts
Patent No.
US 8,360,617
App. No.
12/625,727
Granted
Jan 29, 2013
Kind
B2
Abstract

A lighting system includes at least one light emitting diode and a coating of matrix material having at least one glass-coated quantum dot in a base material. The at least one glass-coated quantum dot may be selected from at least one of a group II-VI materials, III-V materials, IV-VI materials, I-III-VI materials and combinations of such materials. The matrix material may be silicone, and the lighting system may include a light bulb replacement fixture including a threaded screw electrically connected to the light emitting diode.

Claims (15)

1. A system comprising:

at least one light emitting diode;

an active layer consisting essentially of a matrix material and a plurality of quantum dots, wherein at least two of the plurality of quantum dots comprise a glass coating on a surface thereof; and

a light bulb replacement fixture,

wherein the active layer is at least one of the following: on the at least one light emitting diode or above the at least one light emitting diode.

2. The system of claim 1 wherein the matrix material comprises silicone.

3. The system of claim 1 comprising:

a lighting apparatus; and

at least one of a dial or a switch on the lighting apparatus which alters at least one of the input voltage, current, resistance, or power to at least one of the light emitting diodes so as to alter the color output of the at least one diode.

4. The system of claim 1 wherein the plurality of quantum dot comprises a material selected from at least one of a group II-VI materials, III-V materials, IV-VI materials, I-III-VI materials or some combination thereof.

5. The system of claim 1 , wherein the plurality of quantum dot comprises a semiconductor core with a metal layer.

6. The system of claim 1 wherein the light bulb replacement fixture comprises a threaded screw which is electrically connected to the light emitting diode.

7. The system of claim 6 wherein the threaded screw fits into a traditional light bulb receiving fixture.

8. The system of claim 1 , further comprising an enclosure over the light emitting diode.

9. The system of claim 8 wherein the enclosure is a microlens array.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2011
From: EVIDENT TECHNOLOGIES, INC.
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 025921/0558 →
RELEASE OF SECURITY INTEREST Recorded Dec 17, 2010
From: LC CAPITAL MASTER FUND, LTD; OPALKA FAMILY INVESTMENT PARTNERS, LP; ROBB, WALTER L.; SINGER CHILDREN'S MANAGEMENT TRUST; CHALIS CAPITAL LLC; BAZCO, LLC; BIRCH HOLDINGS, LLC; SOLA LTD
To: EVIDENT TECHNOLOGIES, INC.
Reel/Frame 025521/0260 →
SECURITY AGREEMENT Recorded May 26, 2010
From: EVIDENT TECHNOLOGIES
To: LC CAPITAL MASTER FUND, LTD; OPALKA FAMILY INVESTMENT PARTNERS, LP; WALTER L. ROBB C/O VANTAGE MANAGEMENT, INC.; SINGER CHILDREN'S MANAGEMENT TRUST C/O ROMULUS HOLDINGS INC.; CHALIS CAPITAL LLC; BAZCO, LLC; BIRCH HOLDINGS, LLC; SOLA LTD C/O SOLUS ALTERNATIVE ASSET MANAGEMENT LP
Reel/Frame 024434/0534 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2010
From: GILLIES, JENNIFER; LIU, WEI; SOCHA, DAVID
To: EVIDENT TECHNOLOGIES
Reel/Frame 024161/0104 →