IP Library Granted Patent US 11,118,775
Granted Patent B2
US 11,118,775 · App. 16/014,955 · Granted Sep 14, 2021

LED light source

Inventors: Densen Cao (Sandy, UT); Steven D Jensen (West Jordan, UT)
Assignee: Epistar Corporation
F21V29/70F21K9/232F21K9/235F21K9/237F21K9/90F21V3/02F21V29/503F21V29/85F21V29/86F21V29/87H05B33/10H05B33/28F21Y2107/40F21Y2115/10
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Quick Facts
Patent No.
US 11,118,775
App. No.
16/014,955
Granted
Sep 14, 2021
Kind
B2
Abstract

A light source includes a socket connection, a base connected to the socket connection, an LED unit, a mount and a heat conductive material. The socket connection is capable of connecting to a source of electricity. The mount is disposed into the base, and has a top surface on which the LED unit are disposed and a side surface devoid of the LED unit. The heat conductive material directly contacts the LED unit and the side surface of the mount. The heat conductive material enters into a space flanked by the mount and the base and is substantially translucent or transparent such that light emitted from the LED unit is able to pass through the heat conductive material.

Claims (10)

1. A light source, comprising:

a socket connection configured for connection to a source of electricity;

a base arranged on the socket connection without being laterally covered by the socket connection, and having a width greater than that of the socket connection;

a heat conductive structure having a heat conductive material affixed to the base; and

an LED element directly and fully embedded in the heat conductive material while the heat conductive material is an uncured state and subsequently cured to secure the LED element within the heat conductive material, and comprising a positive electrical connection, a negative electrical connection, and a plurality of LEDs,

wherein the plurality of LEDs is connected to each other through a plurality of wires, and has a curved configuration constrained by the plurality of wires and the heat conductive structure having the heat conductive material, and

wherein each of the plurality of LEDs does not include a heat sink, and is not mounted to a mounting structure.

2. The light source of claim 1 , wherein the plurality of LEDs is connected in series between the positive electrical connection and the negative electrical connection.

3. The light source of claim 1 , wherein the plurality of LEDs is connected in parallel between the positive electrical connection and the negative electrical connection.

4. The light source of claim 1 , wherein the curved configuration has an upside-down-“U” shape.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2024
From: EPISTAR CORPORATION
To: EDISONLED LLC
Reel/Frame 069604/0414 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 22, 2018
From: CAO, DENSEN; JENSEN, STEVEN D.
To: EPISTAR CORPORATION
Reel/Frame 046177/0184 →