×

Direct and back view LED lighting system

  • US 10,203,088 B2
  • Filed: 04/30/2012
  • Issued: 02/12/2019
  • Est. Priority Date: 06/27/2011
  • Status: Active Grant
First Claim
Patent Images

1. A lighting system comprising:

  • a back reflector having a length;

    a plurality of LED devices for emitting light disposed adjacent the back reflector and extending in an elongated strip for substantially the length of-the back reflector, the plurality of LEDs facing away from the back reflector;

    an at least partially optically transmissive lens arrangement, the lens arrangement being substantially coextensive with the back reflector to define an interior space with the back reflector such that light emitted by each of the plurality of LED devices is mixed in the interior space and is at least partially reflected off of the back reflector and is emitted from the lighting system through the lens arrangement, the lens arrangement including an elongated, centrally disposed, partially reflective section that extends along the elongated strip of the plurality of LED devices and is disposed opposite to the plurality of LED devices to receive light emitted by the plurality of LED devices, and at least two elongated, translucent sections disposed along opposing sides of the partially reflective section, the at least two elongated, translucent sections extending for the length of the partially reflective section to receive light emitted by the plurality of LED devices wherein the partially reflective section receives light from 85 to 105 degrees of an angular light pattern presented by the plurality of LED devices; and

    a reflective filler in the partially reflective section so that the partially reflective section is more reflective than the translucent sections and allows some light to pass through and reflects some light to the back reflector wherein loading of the reflective filler in the partially reflective section is based on the distance of the plurality LED devices from the lens arrangement.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×