Patents by Inventor Paul D. Kendle

Paul D. Kendle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9900955
    Abstract: A luminaire having an adjustable color temperature of emitted light includes an input device for receiving an input indicative of a desired color temperature, first, second and third LED arrays each array having different color temperatures, a first LED driver for driving one of the first and third LED arrays, a second LED driver for driving the second LED array, an LED array selector for selectively driving the one of the first and third LED arrays dependent upon the input, and a processor for determining which of the first and the third LED arrays to drive based on the input and controlling the LED array selector and the second LED driver dependent upon the input. The processor utilizes analog dimming above a predetermined noise threshold voltage and PWM dimming below the predetermined noise threshold voltage and combinations thereof. A related method of adjusting a color temperature of light emitted from a luminaire is also provided.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: February 20, 2018
    Assignee: DELTA T CORPORATION
    Inventor: Paul D. Kendle