William R Hood

US Patent:

20120275154, Nov 1, 2012

Filed:

Apr 27, 2012

Appl. No.:

13/458709

Inventors:

William Hood - Northbrook IL, US
Liangfu Zhou - Lincolnshire IL, US

Assignee:

LED LIGHTING INC. - Northbrook IL

International Classification:

F21V 21/005
F21V 29/00
H05K 13/00
F21V 31/00

US Classification:

36224902, 295921

Abstract:

In one embodiment, a light emitting device comprises two linear arrays of light emitting diodes positioned on opposite sides of a linear heat conducting member. In one embodiment, a light emitting device comprises a heat conducting member linear in a first linear direction with a first surface and a second surface opposite the first surface; a first linear array of light emitting diodes thermally coupled to the first surface; a second linear array of light emitting diodes thermally coupled to the second surface; a first light transmitting cover positioned to receive and transmit light from the first linear array of light emitting diodes; and a second light transmitting cover positioned to receive and transmit light from the second linear array of light emitting diodes. In another embodiment, a method of manufacturing a light emitting device comprises snapping or sliding extensions of the light transmitting covers into the grooves.

US Patent:

20130235570, Sep 12, 2013

Filed:

Mar 12, 2013

Appl. No.:

13/796709

Inventors:

William Hood - Northbrook IL, US
Liangfu Zhou - Lincolnshire IL, US

Assignee:

LED Lighting Inc. - Northbrook IL

International Classification:

F21V 21/00
H05K 13/04

US Classification:

362225, 29830

Abstract:

In one embodiment, a light emitting device comprises two tubes comprising linear arrays of light emitting diodes physically coupled by a third tube. In one embodiment, the third tube comprises a linear array of light emitting diodes. In another embodiment, the first tube, second tube, and third tube of the light emitting device are positioned to substantially form the shape of a character “U” in a plane perpendicular to the optical axis. In another embodiment, the first linear array of light emitting diodes has an average spacing between the light emitting diodes, and a ratio of the first, shorter dimension of the light emitting diodes to the average spacing is between 1 and 3.

US Patent:

20230053659, Feb 23, 2023

Filed:

Sep 12, 2022

Appl. No.:

17/931451

Inventors:

William Hood - Lake Bluff IL, US
Chase Hood - Barrington IL, US
Garik Griffin - Lake Forest IL, US
Brandon Donnelly - Oxford, GB

International Classification:

A61L 2/10
A61L 2/24

Abstract:

In one embodiment, a system for reducing pathogenic bioburden in an environment comprises a light emitting device comprising one or more light sources emitting UV-C light, two or more sensors generating environmental data, and a processor communicatively coupled to the two or more sensors and the light emitting device, the processor performing an analysis on the environmental data from each sensor of the two or more sensors and adjusting the light flux emitted from the light emitting device based at least in part on the environmental data from the two or more sensors. The light flux emitted from the light emitting device may be adjusted based at least on temperature, humidity, and occupancy of the environment sensed by the two or more sensors.

US Patent:

20230056649, Feb 23, 2023

Filed:

Aug 18, 2022

Appl. No.:

17/820875

Inventors:

William Hood - Lake Bluff IL, US
Chase Hood - Barrington IL, US

International Classification:

A61L 2/10
H05B 47/11
H05B 47/115

Abstract:

In one embodiment, a light emitting device comprises one or more first light sources emitting UV-C light downward to irradiate the environment below the light emitting device (such as air and the floor and other surfaces). In another embodiment, the light emitting device comprises one or more second light sources emitting UV-C light of a different peak wavelength than the first light sources oriented to emit light upward to irradiate the environment above the light emitting device (such as air, the ceiling, and other surfaces). In one embodiment, one or more first light sources and the one or more second light sources emit light at different, independent duty cycles.

US Patent:

20200282905, Sep 10, 2020

Filed:

Mar 5, 2020

Appl. No.:

16/810835

Inventors:

William Hood - Lake Bluff IL, US

International Classification:

B60Q 3/30
F21S 4/28
F21V 3/02
B60Q 3/51
B62D 33/04

Abstract:

In one embodiment, a linear light emitting device comprises one or more linear extrusions collectively comprising a horizontal mounting extension, an array of light emitting diodes, a vertical support, and a linear support platform. In one embodiment, the light emitting device comprises a mounting extension that extends from the light emitting device for the bottom surface of the mounting extension to be mounted to a top rail of a vehicle cargo compartment (such as a trailer or cargo compartment of a truck) and a vertical support that positions a linear array of light emitting diodes above the top rail and oriented at a first orientation angle, such as 45 degrees, to the bottom surface of the horizontal mounting surface. In one embodiment, the linear light emitting device is mounted between two roof bows or below one or more roof bows.