# US 2013/0155705 A1 · Led signal light with visible and infrared emission

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- Number: US 2013/0155705 A1
- Document ID: US20130155705A1
- Status: Published application
- Kind: A1
- Application number: 13/328,001
- Filed: 2011-12-16
- Published: 2013-06-20
- Earliest claimed: 2011-12-16
- Assignees: Dialight Corporation
- Inventors: JOHN Patrick PECK; Kevin A. Hebborn
- Web page: https://patentgrep.com/patent/US20130155705A1

## CPC

- F21S 8/00: Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00)
- F21V 7/005: {with an elongated shape to cooperate with linear light sources}
- F21V 7/0058: {adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular light sources}
- F21V 7/06: with parabolic curvature
- H05B 45/46: having LEDs disposed in parallel lines
- H05B 45/48: having LEDs organised in strings and incorporating parallel shunting devices
- F21W 2111/06: for aircraft runways or the like
- F21Y 2115/10: Light-emitting diodes [LED]
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- 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

The present disclosure is directed to a light emitting diode (LED) signal light. In one embodiment, the LED signal light includes at least one visible LED, at least one infrared (IR) LED, a reflector, wherein the reflector collimates a light emitted from the at least one visible LED and a light emitted from the at least one IR LED and a power supply powering the at least one visible LED and the at least one IR LED.

## Claims

### Claim 1

A light emitting diode (LED) aircraft obstruction beacon light, comprising:
at least one visible LED;
at least one infrared (IR) LED;
a reflector, wherein the reflector collimates a light emitted from the at least one visible LED and a light emitted from the at least one IR LED; and
a power supply powering the at least one visible LED and the at least one IR LED.

### Claim 2 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the at least one visible LED and the at least one IR LED are placed linearly along a common extrusion axis of the reflector.

### Claim 3 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the at least one visible LED comprises a red-orange aluminum indium gallium phosphide (AlInGaP) LED and emits a light at a wavelength with a peak wavelength of between 610 nanometers (nm) to 630 nm.

### Claim 4 (depends on 3)

The LED aircraft obstruction beacon light of claim 3, wherein the at least one IR LED emits a light with a peak wavelength at between 800 nm and 900 nm.

### Claim 5 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the reflector comprises at least one of: aluminum, gold or silver.

### Claim 6 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the at least one visible LED and the at least one IR LED are electrically connected in series.

### Claim 7 (depends on 6)

The LED aircraft obstruction beacon light of claim 6, wherein a failure of the at least one visible LED or the at least one IR LED creates a high impedance that signals a failure of the LED aircraft obstruction beacon light.

### Claim 8 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the at least one visible LED and the at least one IR LED are electrically connected in a series-parallel configuration.

### Claim 9 (depends on 1)

The LED aircraft obstruction beacon light of claim 1, wherein the at least one visible LED and the at least one IR LED are electrically connected in parallel.

### Claim 10

A light emitting diode (LED) signal light, comprising:
a plurality of reflectors;
at least one visible LED associated with each one of the plurality of reflectors;
at least one infrared (IR) LED associated with each one of the plurality of reflectors, wherein a respective one of the plurality of reflectors collimates a light emitted from the at least one visible LED and a light emitted from the at least one IR LED; and
a power supply powering the each one of the at least one visible LED associated with the each one of the plurality of reflectors and the each one of the at least one IR LED associated with the each one of the plurality of reflectors.

### Claim 11 (depends on 10)

The LED signal light of claim 10, wherein the at least one visible LED and the at least one IR LED are placed linearly along an extrusion axis of a respective reflector.

### Claim 12 (depends on 10)

The LED signal light of claim 10, wherein the at least one visible LED comprises a red-orange aluminum indium gallium phosphide (AlInGaP) LED and emits a light at a wavelength with a peak wavelength of between 610 nanometers (nm) to 630 nm.

### Claim 13 (depends on 12)

The LED signal light of claim 12, wherein the at least one IR LED emits a light with a peak wavelength at between 800 nm and 900 nm.

### Claim 14 (depends on 10)

The LED signal light of claim 10, wherein each one of the plurality of reflectors comprises at least one of: aluminum, gold or silver.

### Claim 15 (depends on 10)

The LED signal light of claim 10, wherein the each one of the at least one visible LED associated with the each one of the plurality of reflectors and the each one of the at least one IR LED associated with the each one of the plurality of reflectors are electrically connected in series.

### Claim 16 (depends on 15)

The LED signal light of claim 15, wherein a failure of any one of the at least one visible LED associated with the each one of the plurality of reflectors or any one of the at least one IR LED associated with the each one of the plurality of reflectors creates a high impedance that signals a failure of the LED signal light.

### Claim 17 (depends on 10)

The LED signal light of claim 10, wherein the each one of the at least one visible LED associated with the each one of the plurality of reflectors and the each one of the at least one IR LED associated with the each one of the plurality of reflectors are electrically connected in a series-parallel configuration.

### Claim 18 (depends on 10)

The LED signal light of claim 10, wherein the each one of the at least one visible LED associated with the each one of the plurality of reflectors and the each one of the at least one IR LED associated with the each one of the plurality of reflectors are electrically connected in parallel.

### Claim 19

A signal light, comprising:
at least one visible LED;
at least one infrared (IR) LED;
a reflector cup coupled to each one of the at least one visible LED and the at least one infrared LED, wherein the reflector cup collimates light emitted from a respective one of the at least one visible LED and the at least one IR LED; and
a power supply for powering the at least one visible LED and the at least one IR LED.

### Claim 20 (depends on 19)

The signal light of claim 19, wherein the at least one visible LED and the at least one IR LED are electrically connected in series.
