Light fixture with lightguide trim

Patent metadata

Field	Value
Publication number	US-12044381-B2
Application number	US-202118036184-A
Country	US
Kind code	B2
Filing date	Nov 5, 2021
Priority date	Nov 11, 2020
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A recessed light fixture includes a first light source that emits a first light, a second light source that emits a second light and a reflector positioned to reflect at least a portion of the first light. The recessed light fixture further includes a lightguide trim positioned around at least a portion of the reflector. The second light source is positioned to emit the second light toward a narrow edge of the lightguide trim.

First claim

The invention claimed is:

1. A recessed light fixture, comprising:
a first light source that emits a first light;
a second light source that emits a second light;
a reflector positioned to reflect at least a portion of the first light;
a lightguide trim positioned around at least a portion of the reflector, wherein the second light source is positioned to emit the second light toward a narrow edge of the lightguide trim; and
a housing, wherein an upper portion of the lightguide trim is at least partially positioned in a cavity of the housing and wherein a flange portion of the lightguide trim is at least partially positioned outside of the housing, wherein a first broad surface of the flange portion of the lightguide trim and a second broad surface of the flange portion of the lightguide trim are on opposite sides of the flange portion of the lightguide trim and wherein the second broad surface of the flange portion of the lightguide trim includes a patterned surface.

2. The recessed light fixture of claim 1 , wherein the first light source and the second light source are positioned on a same side of a light source board.

3. The recessed light fixture of claim 2 , wherein the housing functions as a heat sink to dissipate heat from the light source-board.

4. The recessed light fixture of claim 2 , wherein the reflector is secured to the housing by one or more fasteners that extend through holes in the light source-board.

5. The recessed light fixture of claim 1 , wherein the flange portion of the lightguide trim is oriented such that at least a portion of the second light that enters the lightguide trim through the narrow edge of the lightguide trim exits through the first broad surface of the flange portion of the lightguide trim.

6. The recessed light fixture of claim 4 , wherein the first broad surface of the flange portion of the lightguide trim includes a pattern.

7. The recessed light fixture of claim 1 , wherein the first light source is positioned in the cavity of the housing.

8. The recessed light fixture of claim 1 , wherein a portion of the lightguide trim is between the reflector and the housing.

9. The recessed light fixture of claim 1 , wherein the housing is sized such that the housing covers an opening in a ceiling when the light fixture is recessed through the opening, wherein the housing blocks a view of a space behind the ceiling through the lightguide trim from below the light fixture.

10. The recessed light fixture of claim 1 , wherein the second light source is spaced from the narrow edge of the lightguide trim.

11. The recessed light fixture of claim 1 , further comprising a lens attached to the reflector such that the first light emitted by the first light source passes through the lens to illuminate an area below the light fixture.

12. The recessed light fixture of claim 1 , wherein the second light source has a dim level corresponding to a nightlight.

13. The recessed light fixture of claim 1 , wherein the light fixture is controllable such that the first light source is off when the second light source is on.

14. The recessed light fixture of claim 1 , wherein at least one of the first broad surface or second broad surface of the flange portion of the lightguide trim are viewable from below the light fixture when the light fixture is installed to a ceiling, and wherein the flange portion of the lightguide trim is substantially transparent when the second light source is off.

Assignees

• Signify Holding Bv

Inventors

• Kumar Jyoti
• Zimmerman Jacob Todd
• Chen Ying

Classifications

• G02B6/0058

  varying in density, size, shape or depth along the light guide · CPC title

• G02B6/0031

  Reflecting element, sheet or layer · CPC title

• F21V37/0095

  Night lamps; Votive lamps · CPC title

• F21V13/04

  the elements being reflectors and refractors {(for vehicle rear lights F21S43/40)} · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title