Quiet-ceiling light fixture systems and methods

Patent metadata

Field	Value
Publication number	US-2018320843-A1
Application number	US-201815958399-A
Country	US
Kind code	A1
Filing date	Apr 20, 2018
Priority date	May 2, 2017
Publication date	Nov 8, 2018
Grant date	—

Abstract

A light fixture includes a housing having sidewalls that define a manifold aperture, extending from upper to lower edges of the manifold aperture. The housing includes first coupling features. The light fixture includes at least one adapter plate with second coupling features that removably couple with the first coupling features. The adapter plate defines an adapter plate aperture. At least one light emitting engine removably couples with the adapter plate such that emitted light passes through the adapter plate aperture. The light fixture further includes a baffle that includes at least one baffle cell. The baffle cell includes an upper baffle edge that defines: an upper baffle aperture through which light emitted by the light engine passes, a lower baffle edge that defines an output aperture for the emitted light, and a baffle cell wall that extends from the upper baffle edge to the lower baffle edge.

First claim

What is claimed is:

1 . A light fixture, comprising:
a manifold housing having sidewalls that define a manifold aperture, the sidewalls extending from one or more upper edges of the manifold aperture to a lower edge of the manifold aperture, wherein:
a first dimension of the manifold aperture defines an axial direction and a second dimension of the manifold aperture defines a lateral direction, and
the manifold housing comprises one or more first coupling features;
at least one adapter plate, comprising one or more second coupling features, wherein:
the at least one adapter plate defines an adapter plate aperture, and
the one or more second coupling features of the at least one adapter plate removably couple with the one or more first coupling features of the manifold housing to secure the at least one adapter plate to the manifold housing;
at least one light engine that emits light, wherein the at least one light engine removably couples with the at least one adapter plate such that light emitted by the at least one light engine passes through the adapter plate aperture and the manifold aperture toward a light-emitting side of the light fixture; and a baffle that substantially spans the manifold aperture and comprises at least one baffle cell; wherein the at least one baffle cell comprises:
(i) an upper baffle edge that defines an upper baffle aperture through which the light emitted by the at least one light engine passes,
(ii) a lower baffle edge that defines an output aperture for the emitted light, and
(iii) a baffle cell wall that extends from the upper baffle edge to the lower baffle edge.

2 . The light fixture of claim 1 , further comprising:
a trim piece that removably couples with the manifold housing so as to be positioned proximate the lower edge of the manifold aperture, wherein the trim piece is configured to extend outwardly from the manifold housing over an architectural surface.

3 . The light fixture of claim 2 , wherein the trim piece blocks light at angles higher than about 55 degrees from nadir in the lateral direction.

4 . The light fixture of claim 1 , wherein:
the at least one adapter plate comprises a first adapter plate and a second adapter plate; the first adapter plate and the second aperture plate couple with the manifold housing at respective light emitter positions; the at least one light engine comprises a first and a second light engine, wherein the first light engine removably couples with the first adapter plate and the second light engine removably couples with the second adapter plate; and the baffle comprises a first baffle cell and a second baffle cell; wherein a portion of the light emitted by the first light engine is reflected by the baffle cell wall of the first baffle cell and a portion of the light emitted by the second light engine is reflected by the baffle cell wall of the second baffle cell.

5 . The light fixture of claim 4 , wherein the lower edges of the first baffle cell and the second baffle cell meet, forming a divider that extends in the lateral direction between the first and second baffle cells.

6 . The light fixture of claim 5 , wherein the divider blocks light emitted by the first and second light engines at angles higher than about 55 degrees from nadir in the axial direction.

7 . The light fixture of claim 1 , wherein the at least one light engine comprises:
a light source housing that defines an optical axis; a light source, coupled with the light source housing, that emits the light along the optical axis; and a rotation/tilt housing that couples with the at least one adapter plate, and supports the light source housing such that directionality of the light emitted along the optical axis can be adjusted relative to the manifold housing.

8 . The light fixture of claim 7 , wherein the rotation/tilt housing is configured to adjust at least one of tilt or rotation of the light emitted by the at least one light engine.

9 . The light fixture of claim 7 , wherein the rotation/tilt housing is configured such that directionality of the light emitted from the at least one light engine can be adjusted by manipulation from the light-emitting side of the light fixture, without requiring mechanical access above the adapter plate.

10 . The light fixture of claim 1 , wherein the at least one light engine comprises:
a light source housing; a light source coupled with the light source housing; a primary optic at least partially positioned within the light source housing; and a retainer ring coupled with the light source housing, wherein the retainer ring couples the primary optic with the light source housing.

11 . The light fixture of claim 10 , wherein the retainer ring comprises:
a retainer ring body; coupling features that engage the light source housing; and a secondary optic, formed integrally with the retainer ring body, that extends away from the light source housing.

12 . The light fixture of claim 11 , wherein the secondary optic comprises a reflector configured to reflect at least a portion of the light from the at least one light engine.

13 . The light fixture of claim 12 , wherein the reflector is a wall wash kicker reflector, and the retainer ring body is rotatable, relative to the light source housing, to adjust a direction in which light from the at least one light engine is reflected.

14 . The light fixture of claim 12 , wherein the retainer ring body, the coupling features and the reflector comprise an integrally molded plastic component.

15 . The light fixture of claim 14 , wherein the reflector further comprises a metalized surface of the integrally molded plastic component.

16 . The light fixture of claim 1 , wherein:
a plan view shape of the upper baffle edge forms a closed shape that is devoid of angles; a plan view shape of the lower baffle edge forms a closed shape that is devoid of angles; and the baffle cell wall comprises an inner surface that is continuously, downwardly concave from the upper baffle edge to the lower baffle edge, and is devoid of angles.

17 . The light fixture of claim 16 , wherein the baffle has a compound azimuthal and vertical profile.

18 . The light fixture of claim 1 , wherein:
the at least one adapter plate consists of a single adapter plate; the at least one light engine consists of a single light engine; and the baffle consists of a single baffle cell.

19 . A light fixture, comprising:
a manifold housing that comprises one or more first coupling features; a plurality of adapter plates, wherein one or more second coupling features of each of the adapter plates removably couple with corresponding ones of the first coupling features, to secure each of the adapter plates to the manifold housing; a plurality of light engines corresponding in number to the adapter plates, wherein:
each light engine is removably coupled to a corresponding one of the adapter plates,
each of the light engines includes a light source within a light source housing, and
each of the light sources emits light toward a primary optic that is secured to the light source housing with a retainer ring;
a baffle that substantially spans the manifold aperture and forms one baffle cell for each of the plurality of light engines, each of the baffle cells comprising a baffle cell wall, wherein each baffle cell wall:
defines an upper baffle aperture through which light is received from the primary optic,
defines an output aperture through which light is emitted, and
forms a c

Assignees

• Abl Ip Holding Llc

Inventors

• Tepo Megan Marie
• Grove Douglas Dewayne
• Reilly John M
• Onda Joseph James
• Conn James Scott
• Shaner Jeff Robert

Classifications

• H10W90/00

  Package configurations · CPC title

• F21K9/20

  Light sources comprising attachment means · CPC title

• F21V7/043

  with cylindrical surface · CPC title

• F21V17/162

  the parts being subjected to traction or compression, e.g. coil springs · CPC title

• F21S8/04 Primary

  intended only for mounting on a ceiling or the like overhead structures (F21S8/02 takes precedence; {details of ceiling bases F21V21/03}) · CPC title