IP Library Granted Patent US 10,779,384
Granted Patent B2
US 10,779,384 · App. 16/681,384 · Granted Sep 15, 2020

Lighting system

Inventor: Marc Alexander (San Francisco, CA)
Assignee: LIFI Labs, Inc.
H05B47/19F21S8/026F21S9/02F21V7/06F21V14/02F21V21/14F21V23/045F21V29/83G05B15/02F21V3/02F21Y2115/10
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Quick Facts
Patent No.
US 10,779,384
App. No.
16/681,384
Granted
Sep 15, 2020
Kind
B2
Abstract

A connected downlight including: a housing module including a first housing end and a second housing end; a lighting module mounted to the first housing end; and a wireless communication module including an antenna and arranged within the housing interior proximal the second housing end.

Claims (54)

1. A connected downlight, comprising:

a facing having a facing height;

an external mounting mechanism mounted to the facing;

a housing, comprising:

a heat sink mounted to the facing, the heat sink having a first side, a second side opposing the first side, a first thermal conductivity value, and a heat sink height taller than the facing height;

an RF-translucent end cap mounted to the second side of the heat sink and coaxially aligned along a longitudinal axis with the heat sink, the RF-translucent end cap having a second thermal conductivity value; and

a set of cooling channels cooperatively defined by the heat sink and the end cap, the set of cooling channels fluidly connecting a housing interior with a housing exterior;

a lighting module comprising:

a substrate mounted and thermally connected to the first side of the heat sink; and

a plurality of light emitting elements mounted to the substrate; and

a wireless communication module comprising an RF antenna, the RF antenna arranged separate from the lighting module and mounted entirely within the housing interior, proximal the end cap.

2. The downlight of claim 1 , wherein the mounting mechanism comprises a pair of spring clips mounted to opposing sides of the facing, the downlight further comprising:

a reflector, comprising:

a first open end mounted to the heat sink, proximal the lighting module; and

a second open end distal the heat sink;

a diffuser mounted to the second open end; and

a swivel body encircling the reflector, statically mounted to the first housing end, and rotatably mounted to the facing, wherein the swivel body rotatably mounts the facing to the heat sink.

3. The downlight of claim 1 , the downlight further comprising:

a power supply unit; and

a computing system;

wherein the power supply unit and the computing system are arranged separate from the lighting module and are mounted within the housing interior, wherein the housing defines a housing cavity, wherein the power supply unit, computing system, and the antenna are each arranged inside the housing cavity.

4. The downlight of claim 3 , wherein the power supply unit, the computing system, and the wireless communication module are mounted on a common board, proximal the end cap.

5. The downlight of claim 4 , wherein the power supply unit, the computing system, and the wireless communication module are arranged within a sleeve, the sleeve comprising a third thermal conductivity value less than the first thermal conductivity value.

6. The downlight of claim 5 , wherein the sleeve is thermally connected to an ambient environment by the set of cooling channels.

7. The downlight of claim 1 , wherein the housing further comprises an RF transparent sleeve comprising a third thermal conductivity value less than the first thermal conductivity value, wherein the sleeve is encapsulated by the heat sink and the end cap.

8. A luminaire, comprising:

a housing comprising:

a first housing end having a first thermal conductivity value;

an RF-transparent second housing end opposing the first housing end, the second end having a second thermal conductivity value less than the first thermal conductivity value;

a wireless communication module comprising an RF antenna, the RF antenna mounted entirely within the housing proximal the second housing end; and

a lighting module mounted to and thermally connected to the first housing end, the lighting module comprising:

a substrate;

a plurality of light emitting elements mounted to the substrate, opposing the housing;

a facing mounted to the first housing end; and

a mounting mechanism mounted to the facing;

wherein the housing defines a longitudinal axis, wherein the lighting module, the first housing end, and the second housing end are coaxially aligned along the longitudinal axis.

9. The luminaire of claim 8 , wherein the mounting mechanism comprises a pair of spring clips mounted to opposing sides of the facing, the luminaire further comprising:

a reflector, comprising:

a first open end mounted to the first housing end, proximal the lighting module; and

a second open end distal the first housing end;

a diffuser mounted to the second open end;

a swivel body encircling the reflector, statically mounted to the first housing end, and rotatably mounted to the facing, wherein the swivel body rotatably mounts the facing to the first housing end.

10. The luminaire of claim 8 , wherein the first housing end comprises a heat sink, the heat sink comprising a base with a perimeter, wherein the heat sink is mounted to and thermally connected to the lighting module.

11. The luminaire of claim 10 , wherein the heat sink further comprises a plurality of teeth extending from the perimeter of the base, parallel to the longitudinal axis of the housing, towards the second housing end, wherein the facing has a facing height, wherein the heat sink has a heat sink height greater than the facing height.

12. The luminaire of claim 11 , wherein the heat sink height is at least 30 mm tall.

13. The luminaire of claim 8 , the luminaire further comprising:

a power supply unit; and

a computing system;

wherein the power converter and the processor are arranged separate from the lighting module and are mounted within the housing interior.

14. The luminaire of claim 13 , wherein the power supply unit, the computing system, and the wireless communication module are mounted on a common board.

15. The luminaire of claim 14 , wherein the power supply unit, the computing system, and the wireless communication module are arranged proximal the second housing end.

16. The luminaire of claim 15 , wherein the power supply unit, the computing system, and the wireless communication module are arranged within a sleeve, the sleeve comprising a third thermal conductivity value less than the first thermal conductivity value.

17. The luminaire of claim 16 , wherein the sleeve is fluidly connected to an ambient environment by a set of cooling channels defined by the housing.

18. The luminaire of claim 17 , wherein the set of cooling channels is cooperatively defined by the first housing end and the second housing end.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 24, 2022
From: LIFI LABS, INC.
To: FEIT ELECTRIC COMPANY, INC.
Reel/Frame 060886/0049 →
PATENT COLLATERAL AGREEMENT AND NOTICE Recorded Jan 5, 2021
From: BUDDY PLATFORM, INC.; LIFI LABS INC.
To: PARTNERS FOR GROWTH VI, L.P.
Reel/Frame 054901/0524 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2019
From: ALEXANDER, MARC
To: LIFI LABS, INC.
Reel/Frame 050985/0385 →
Continuity (4)
Continuation 15905637 · Feb 26, 2018
Provisional Application 62475516 · Mar 23, 2017
Provisional Application 62463665 · Feb 26, 2017
Related Publication 20200084865A1 · Mar 12, 2020