# US 8,540,398 B2 · Multidirectional light emitting fixture

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- Number: US 8,540,398 B2
- Document ID: US8540398B2
- Status: Granted
- Kind: B2
- Application number: 12/689,937
- Filed: 2010-01-19
- Published: 2011-07-21
- Granted: 2013-09-24
- Earliest claimed: 2010-01-19
- Applicants: William F. Harris
- Inventors: William F. Harris
- Web page: https://patentgrep.com/patent/US8540398B2

## CPC

- F21K 9/00: Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21V 23/06: the elements being coupling devices {, e.g. connectors}
- F21S 9/00: Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array}
- F21Y 2115/10: Light-emitting diodes [LED]
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

Lighting fixtures, apparatuses, methods, systems, computer readable media and other means are provided for a scalable light fixture design that allows a lighting manufacture to easily create custom multidirectional lighting fixtures. The approach may be easily modified and adjusted without departing from the general design and without incurring the otherwise larger redesigning costs often associated with the creation of light fixtures customized for a particular lighting design application.

## Claims

### Claim 1

A light fixture configured to provide multidirectional illumination, comprising:
a hub defining a reference plane;
extended members each having a distal end, wherein:
each of the extended members is physically coupled to the hub, and
at least one of the extended members is positioned at a first non-zero predefined angle relative to the reference plane;
light emitting devices, wherein:
at least one of the light emitting devices is physically and electrically coupled to one of the extended members, and
the light fixture points at least two of the light emitting devices in different directions; and
a mounting component comprising a flange disposed at the distal end of each of a plurality of the extended members, wherein the flange defines at least one hole and is configured for mounting the light fixture to a substantially planar surface.

### Claim 2 (depends on 1)

The light fixture of claim 1, wherein a second of the extended members is angled, relative to the reference plane defined by the hub, at a different angle than the first predefined angle, and wherein the angling of the second of the extended members is defined proximate that point at which the second of the extended members is physically coupled to the hub.

### Claim 3 (depends on 1)

The light fixture of claim 1, wherein the light emitting devices comprise light emitting diodes.

### Claim 4 (depends on 1)

The light fixture of claim 1, wherein:
the hub has an octagon shape; and
the extended members consist of eight extended members that are physically connected to each of the hub's eight sides.

### Claim 5 (depends on 1)

The light fixture of claim 1, wherein a plurality of the light emitting devices are physically and electrically coupled to each of the extended members.

### Claim 6 (depends on 5)

The light fixture of claim 5, wherein the plurality of the light emitting devices are physically and electrically coupled to a convex face of each of the extended members.

### Claim 7 (depends on 5)

The light fixture of claim 5, wherein the plurality of the light emitting devices are physically and electrically coupled to a concave face of each of the extended members.

### Claim 8 (depends on 1)

The light fixture of claim 1, further comprising a plurality of the light emitting devices physically and electrically coupled to the hub.

### Claim 9 (depends on 1)

The light fixture of claim 1, wherein the at least one of the extended members comprises a portion proximate a distal end of the respective extended member that is oriented at an angle different than the first predefined angle with respect to the reference plane.

### Claim 10 (depends on 1)

The light fixture of claim 1, wherein extended members are comprised of a thermally conductive material.

### Claim 11 (depends on 1)

The light fixture of claim 1, wherein the hub is configured to support a plurality of light emitting devices.

### Claim 12 (depends on 11)

The light fixture of claim 11, wherein the hub is configured to support four light emitting devices.

### Claim 13 (depends on 1)

The light fixture of claim 1, wherein each extended member is configured to support a plurality of light emitting devices.

### Claim 14 (depends on 13)

The light fixture of claim 13, wherein each extended member is configured to support three light emitting devices.

### Claim 15

A method of providing multidirectional illumination, comprising:
providing a hub defining a reference plane;
providing extended members coupled to the hub;
providing light emitting devices coupled to the extended members;
providing power to the light emitting devices that are physically and electrically coupled to the extended members;
in response to receiving the power, emitting light using at least one of the light emitting devices, wherein the emitting comprises:
emitting light outward from one of the extended members; and
emitting light from the at least one of the light emitting devices that is mounted on the one of the extended members between a first location, defined by where the one of the extended members is physically coupled to the hub, and a second location, defined by a distal end of the one of the extended members; and
mounting the light fixture to a substantially planar surface using a mounting component comprising a flange disposed at the distal end of each of a plurality of the extended members, wherein the flange defines at least one hole.

### Claim 16 (depends on 15)

The method of claim 15 further comprising:
determining the quantity of ambient light local to the at least one of the extended members; and
adjusting the power to control the brightness of the light emitting devices physically coupled to the one of the extended members.

### Claim 17 (depends on 15)

The method of claim 15 further comprising:
receiving inputs associated with a lighting application; and
illuminating at least some of the light emitting devices based on the inputs.
