IP Library Granted Patent US 11,353,646
Granted Patent B2
US 11,353,646 · App. 17/397,093 · Granted Jun 7, 2022

Waveguide lighting fixture providing ambient light

Inventors: Jeffery Parker (Northfield, IL); Meng Yang (Buffalo Grove, IL)
Assignee: LUMINII LLC
G02B6/0055F21S8/06F21V7/0016F21V14/06F21V23/0435G02B6/005G02B6/0018G02B6/0078G02B6/0086F21Y2115/10
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Quick Facts
Patent No.
US 11,353,646
App. No.
17/397,093
Granted
Jun 7, 2022
Kind
B2
Abstract

A light fixture for waveguided ambient light is described herein. In one embodiment, the light fixture includes an LED light source for emitting light rays, a waveguide optically coupled to the LED light source to receive and guide the emitted light rays from a proximal end of the waveguide to a distal end of the waveguide, a first indirect lighting surface configured to receive a first portion of the emitted light rays and reflect the first portion at a first distribution to produce a first ambient light source, and a second indirect lighting surface configured to receive a second portion of the emitted light rays and reflect the second portion at a second distribution to produce a second ambient light source.

Claims (18)

1. A light fixture, comprising:

two or more LED light sources for emitting light rays; and

two or more waveguides optically coupled to the LED light sources to receive and guide the emitted light rays from an input edge of the waveguide to a distal end of the waveguides; wherein the two or more LEDs are mounted on a heat sink that is connected to a frame of the light fixture; wherein the two or more waveguides extend to an interior portion of the fixture; wherein a positioning of at least one of the two or more waveguides can be adjusted to change an output ray angle distribution of the fixture.

2. The light fixture of claim 1 , further comprising:

a microlens located on or in at least one surface of a distal end of one of the two or more waveguides and configured to receive the emitted light rays and transmit the emitted light rays.

3. The light fixture of claim 1 , further comprising:

a prismatic or lenticular surface located on or in at least one surface of a distal end of one of the two or more waveguides and configured to receive the emitted light rays and transmit the emitted light rays.

4. The light fixture of claim 1 , wherein the emitted light rays form a batwing profile.

5. The light fixture of claim 4 , wherein the batwing profile comprises a square batwing profile.

6. The light fixture of claim 1 , wherein the at least one of the two or more waveguides comprises a translucent material.

7. The light fixture of claim 6 , wherein the guided light rays are imperceptible within the respective waveguide and perceptible upon reaching a distal end of the respective waveguide.

8. The light fixture of claim 1 , wherein the two or more waveguides comprise a first waveguide and a second waveguide; wherein the first waveguide and the second waveguide are positioned so as to define a gap between them.

9. The light fixture of claim 8 , wherein the first waveguide and the second waveguide are configured such that they are opposite to each other.

10. The light fixture of claim 8 , wherein the at least one waveguide guides light to an interior of the fixture.

11. The light fixture of claim 1 , wherein the two or more waveguides are further adapted or configured to define a hole, slot or cavity.

12. The light fixture of claim 1 , further comprising:

a light housing comprising a first indirect lighting surface and a second indirect lighting surface.

13. The light fixture of claim 12 , wherein the light housing has a geometrical cross-section, wherein the geometrical cross-section comprises an elliptical shape, a triangular shape, an oval shape, a circular shape, a trapezoidal shape, a parallelogram shape, a rectangular shape, or a combination thereof.

Assignments (1)
SECURITY INTEREST Recorded Mar 21, 2025
From: LUMINII LLC; OPTIC ARTS, LLC; ILIGHT TECHNOLOGIES, LLC
To: FIDELITY DIRECT LENDING LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 070582/0980 →
Continuity (3)
Continuation 16800711 · Feb 25, 2020
Continuation In Part 16541238 · Aug 15, 2019
Related Publication 20220026624A1 · Jan 27, 2022