Luminaire with rear-mounted sensing assembly

• US 10,330,279 B2
• Filed: 08/01/2017
• Issued: 06/25/2019
• Est. Priority Date: 08/01/2017
• Status: Active Grant

• Current Assignee: Kenall Manufacturing Company (Legrand SA)
• Original Assignee: Kenall Manufacturing Company (Legrand SA)
• Inventors: Stolte, Brandon, Murphy, Diane, Marry, Patrick J.
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US15/666,325
• Publication Number:
  US 20190041026A1
• Time in Patent Office: 693 Days
• CPC Class Codes: F21V 19/0015 Fastening arrangements intended to retain light sources
• CPC Class Codes: F21V 23/045 the sensor receiving a signal from a remote controller
• CPC Class Codes: F21V 23/0471 the sensor detecting the proximity, the presence or the movement of an object or a person
• CPC Class Codes: F21V 29/74 with fins or blades
• 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 3/02 characterised by the shape
• CPC Class Codes: F21V 7/04 Optical design
• CPC Class Codes: F21Y 2105/18 annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 6/0096 the lights guides being of the hollow type
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/12 using optical feedback
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light

Abstract

A luminaire with various sensing capabilities is provided. According to one aspect, the luminaire may include a housing and a lens covering an opening formed in the housing. In addition, the luminaire may include a sensing assembly which is disposed in the housing and configured to detect changes in an environment outside the housing. A light source may also be disposed in the housing and configured to emit light in a forward direction toward the lens. The sensing assembly may be positioned rearward of at least a portion of the light source.

Claims

1. A luminaire comprising:

a housing;

a sensing assembly disposed in the housing and configured to detect changes in an environment outside of the housing;

a lens covering an opening formed in the housing; and

a light source disposed in the housing and configured to emit light in a forward direction toward the lens, wherein the sensing assembly is positioned rearward of at least a portion of the light source.

2. The luminaire of claim 1, the light source including a circuit board and a plurality of light emitting diodes (LEDs) mounted on the circuit board.

3. The luminaire of claim 2, the circuit board including a non-conductive substrate and a plurality of conductive elements for supplying electricity to the LEDs.

4. The luminaire of claim 3, at least a portion of the sensing assembly being positioned rearward of and aligned with a metal-free region of the circuit board.

5. The luminaire of claim 4, the metal-free region of the circuit board being defined by an opening formed in the non-conductive substrate.

6. The luminaire of claim 4, the metal-free region of the circuit board being defined by a portion of the circuit board that is free of any of the plurality of conductive elements.

7. The luminaire of claim 6, an area covered by the metal-free region of the circuit board when viewed in a plan view is greater than or equal to 0.5 square inches.

8. The luminaire of claim 4, the sensing assembly including a sensor configured to detect motion within a pre-determined distance from the luminaire.

9. The luminaire of claim 2, comprising a light pipe member disposed in the housing and configured to transport ambient light rays present in the environment to the sensing assembly, the light pipe member having a light entry end disposed forward of the circuit board and a second end disposed rearward of the circuit board, at least a portion of the sensing assembly being positioned to receive the ambient light rays from or within the second end of the light pipe member.

10. The luminaire of claim 9, the light entry end of light pipe member extending at least partially through an opening formed in the lens.

11. The luminaire of claim 9, the light pipe member including a hollow cylinder.

12. The luminaire of claim 9, the sensing assembly including a sensor configured to detect an intensity of the ambient light rays.

13. A luminaire comprising:

a housing;

a lens covering an opening formed in the housing; and

a light source including a circuit board disposed in the housing and being configured to emit light toward the lens, wherein the circuit board includes a metal-free region.

14. The luminaire of claim 13, wherein an area covered by the metal-free region of the circuit board when viewed in a plan view is greater than or equal to 0.5 square inches.

15. The luminaire of claim 14, the metal-free region of the circuit board being defined by an opening formed in the non-conductive substrate.

16. The luminaire of claim 14, the metal-free region of the circuit board being defined by a portion of the circuit board that is free of any of the plurality of conductive elements.

17. The luminaire of claim 14, comprising a sensing assembly disposed in the housing and configured to detect changes in an environment outside of the housing, wherein at least a portion of the sensing assembly is positioned rearward of and aligned with the metal-free region.

18. A luminaire comprising:

a housing;

a lens covering an opening formed in the housing;

a light source including a circuit board disposed in the housing and being configured to emit light in a forward direction toward the lens; and

a light pipe member being disposed in the housing and configured to transport ambient light rays present in an environment outside of the housing to a location within the housing rearward of the circuit board.

19. The luminaire of claim 18, the light pipe member having a light entry end disposed forward of the circuit board and a second end disposed rearward of the circuit board.

20. The luminaire of claim 19, comprising a light sensor positioned rearward of the circuit board and configured to receive the ambient light rays from or within the second end of the light pipe member.