Robert A Mccullough

US Patent:

20200292148, Sep 17, 2020

Filed:

Jun 3, 2020

Appl. No.:

16/891453

Inventors:

Robert W. McCullough - Sausalito CA, US

International Classification:

F21V 7/00
F21S 4/28

Abstract:

The disclosed embodiments pertain to methods and systems for producing a uniform irradiance upon a horizontal surface using an array of LED emitters and optionally a reflective surface. The uniform irradiance upon a horizontal surface has utility in horticultural lighting applications where it is desirable to distribute energy from the lighting system uniformly to the crop canopy to ensure uniform growth rates and optimal usage of electrical power. Linear LED arrays may be disposed in parallel along a linear support structure with the angle of the arrays and the angle of the LED beams adjusted to comport with an even light distribution over the plant canopy or horizontal surface. The optical light patters achieved resemble and are sometimes called “batwings.”

US Patent:

20200288553, Sep 10, 2020

Filed:

May 22, 2020

Appl. No.:

16/881683

Inventors:

Robert W. McCullough - Sausalito CA, US

International Classification:

H05B 45/56
H05B 47/28
H05B 45/54
H05B 45/345

Abstract:

Electrical current conditioning systems may include simplified electronic protection circuits for LED lights used for growing plants. A system includes an LED support structure with a channel extending therethrough, and an LED array module carried on a surface of the LED support structure. The LED array module includes an LED array and a current conditioning circuit which adjusts the amount of current flowing through the LED array in response to a temperature indication. The current conditioning circuit includes a current sensing circuit which adjusts the amount of current flowing through the LED array in response to a voltage indication.