Patents Assigned to Pelka & Associates, Inc.
  • Optical system
    Patent number: 10877253
    Abstract: An optical system for light distribution. The optical system includes at least a reflective surface, at least two refracting surfaces, at least one inner lens and an outer lens. The optical system provides high efficiency collection and distribution of light.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 29, 2020
    Assignee: PELKA & ASSOCIATES INC.
    Inventors: Benjamin A. Jacobson, Robert D. Gengelbach
  • Direct-view LED backlight with gradient reflective layer
    Patent number: 10274783
    Abstract: A backlight unit includes an array of light sources arranged on at least one printed circuit board, a reflective member including a plurality of holes provided over the array of light sources such that light from the light sources passes through the holes, and a gradient reflective layer provided over the reflective member to modify a distribution of light received from the array of light sources and the reflective member.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 30, 2019
    Assignee: Pelka & Associates, Inc.
    Inventor: David Gerard Pelka