Light fixture

• US 10,068,442 B2
• Filed: 04/27/2017
• Issued: 09/04/2018
• Est. Priority Date: 04/29/2016
• Status: Active Grant

• Current Assignee: Hubbell, Inc.
• Original Assignee: Hubbell, Inc.
• Inventors: Chong, Matthew John, Khan, Nouman Bashir
• Primary Examiner(s): King, Curtis
• Application Number:
  US15/499,125
• Publication Number:
  US 20170316660A1
• Time in Patent Office: 495 Days
• Field of Search: None
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: F21V 21/096 Magnetic devices
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 33/0076 Safety or security signalisation, e.g. smoke or burglar alarms, earthquake detectors; Self-defence devices
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21V 7/04 Optical design
• CPC Class Codes: F21W 2131/40 Lighting for industrial, commercial, recreational or military use
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G08B 5/36 using visible light sources
• CPC Class Codes: G08B 7/066 guiding along a path, e.g. evacuation path lighting strip
• CPC Class Codes: H05B 35/00 Electric light sources using a combination of different types of light generation
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/105 in response to determined parameters

Abstract

A light fixture includes a housing having a first portion and a second portion. The light fixture further includes a first light emitting element supported within the first portion of the housing, and a second light emitting element supported within the second portion of the housing. The second light emitting element is controlled such that the second light emitting element provides a different color than the first light emitting element.

Claims

1. A light fixture, comprising:

a housing having a first portion and a second portion;

a first light emitting element supported within the first portion of the housing configured to illuminate an area during a normal operation;

a second light emitting element supported within the second portion of the housing; and

an indicator lens positioned in the second portion of the housing,

wherein the indicator lens includes a spheroidal shaped portion and the second light emitting element is controlled such that the second light emitting element provides light having a different color than the first light emitting element through the indicator lens to indicate a non-normal operating condition.

2. The light fixture of claim 1, further comprising at least one driving component in electrical communication with the first light emitting element and the second light emitting element, wherein when the at least one driving component receives a first signal, the second light output of the second light emitting element is a first color to indicate a first condition, wherein when the at least one driving component receives a second signal, the second light output of the second light emitting element is a second color indicating a second condition, and wherein the first and second colors are substantially different.

3. The light fixture of claim 1, wherein the housing has first and second ends, wherein the first portion of the housing extends between the first and second ends, wherein the first portion defines an opening, and wherein the first light emitting element is configured to direct a first light output through the opening.

4. The light fixture of claim 3, wherein the opening is defined at an oblique angle relative to a plane extending between the first and second ends of the housing and dividing the housing in half.

5. The light fixture of claim 1, wherein the housing has an end, wherein the second portion of the housing is adjacent the end of the housing, wherein the second portion defines an opening, and wherein the indicator lens is positioned in the opening.

6. The light fixture of claim 5, wherein the opening is partially defined by an arcuate wall of the housing and wherein the indicator lens extends between opposite side walls of the housing.

7. The light fixture of claim 6, wherein the curved outer surface of the indicator lens extends through an angle of between approximately 135 degrees and approximately 180 degrees.

8. The light fixture of claim 1, further comprising at least one circuit board supported within the housing, and at least one driving component coupled to the at least one circuit board, wherein the first light emitting element includes a first light emitting diode (LED) coupled to the at least one circuit board, and wherein the second light emitting element includes a second LED coupled to the at least one circuit board.

9. The light fixture of claim 8, wherein the second LED is a multi-colored LED controllable by the at least one driving component to change a color of light outputted from the second LED in accordance with a signal received by the at least one driving component.

10. The light fixture of claim 1, further comprising an electrical connector that is electrically connected with a control center to provide power and electrical communication to the first and second light emitting elements.

11. The light fixture of claim 1, further comprising a mounting boss to mount the safety light to a structure.

12. The light fixture of claim 1, further comprising a magnet coupled to the housing to selectively mount the safety light to a magnetic structure.

13. A lighting system, comprising:

a plurality of light fixtures, each of the light fixtures including

a housing having a first portion and a second portion,

a primary light emitting element supported within the first portion of the housing and configured to illuminate an area during a normal operation, and

an indicator light emitting element supporting within the second portion of the housing and configured to emit a signal light,

an indicator lens positioned in the second portion of the housing;

wherein the indicator lens includes a spheroidal shaped portion; and

a control center in electrical communication with the plurality of light fixtures, the control center configured to control each of the light fixtures,

wherein the control center is further configured to independently control the indicator light emitting element of each of the light fixtures to selectively illuminate the indicator light to act as a colored indicator to indicate a non-normal operating condition.

14. The lighting system of claim 13, wherein each of the light fixtures further includes at least one driving component in electrical communication with the primary light emitting element and the control center, wherein the at least one driving component is operable to receive a signal from the control center, and wherein the primary light emitting element is controlled based on the signal.

15. The lighting system of claim 13, wherein the control center is operable to control the indicator light emitting element, and wherein the plurality of light fixtures are arranged along a path such that the second light emitting element of the light fixtures illuminate the path.

16. The lighting system of claim 13, wherein the plurality of light fixtures are arranged along a path, wherein a location is positioned along the path, wherein one of the light fixtures is positioned adjacent the location, and wherein the indicator light emitting element of the one of the light fixtures is illuminated to indicate the location.

17. The lighting system of claim 16, wherein the indicator light emitting element is illuminated a color different from the primary light emitting element to indicate the location.

18. The lighting system of claim 13, wherein the plurality of light fixtures are arranged along a path, wherein a location is located on the path, and wherein the indicator light emitting element of the light fixtures on the path are illuminated to indicate the path on which the location lies.

19. The lighting system of claim 13, wherein one of the light fixtures is positioned adjacent equipment, and wherein the indicator light emitting element of the one of the light fixtures is illuminated a first color to indicate a first status of the equipment and a second color to indicate a second status of the equipment.

20. The lighting system of claim 13, wherein the non-normal operating condition includes a gas concentration level is greater than a predetermined threshold, the indicator light emitting element of at least one of the light fixtures is illuminated.