Screw-in led bulb
AssigneeAltair Engineering, Inc.
InventorsDavid L. Simon, John Ivey, Michael A. White
Life of this patent
Estimating the term…
Abstract
An LED-based light can include a highly thermally conductive base having multiple radially outward projecting nodes. The nodes can be spaced apart in an axial and circumferential directions of the base. An electrical connector and at least one LED can be attached to the base, and a light transmitting bulb can be attached to the base and can cover the at least one LED. The geometry of the base can promote heat dissipation, which can allow the at least one LED to use enough power to produce an amount of luminosity that allows the LED-based light to replicate, for example, an incandescent light without overheating.
Claims20
An LED-based light comprising:
- a highly thermally conductive base defining multiple radially outward projecting nodes, the nodes spaced apart in axial and circumferential directions of the base;
- an electrical connector attached to the base;
- at least one LED attached to the base;
- and
- a light transmitting bulb attached to the base and covering the at least one LED.
The LED-based light of claim 8, wherein the width of the bulb is at least 20% greater than a maximum width of the base in the radial direction.
An LED-based light for use in a standard Edison-type screw-in fixture comprising:
- a highly thermally conductive base defining multiple radially outward projecting nodes, wherein groups of more than one of the nodes are associated with respective imaginary pull lines, and wherein sides of each node are angled as the node extends radially outward such that each side extends parallel to its respective pull line or is angled further toward an opposing side of the node than its respective pull line;
- an Edison-type screw-in electrical connector attached to the base;
- at least one LED attached to the base;
- and
- a light transmitting bulb attached to the base and covering the at least one LED.
A method of manufacturing an LED-based light comprising:
- forming a cavity having a shape corresponding to a heat exchanging base that defines multiple radially outward projecting nodes by moving multiple die pieces along respective pull lines from spaced apart positions to adjoining molding positions;
- pouring molten highly thermally conductive material into the cavity;
- allowing the molten material to cool;
- moving the die pieces along their respective pull lines from the adjoining molding positions to the spaced apart positions to release the heat exchanging base;
- and
- attaching an electrical connector and one or more LEDs to the base.
Dependencies are inferred from the claim text.