Integrated signal light head

• US 9,068,704 B2
• Filed: 08/10/2012
• Issued: 06/30/2015
• Est. Priority Date: 09/21/2010
• Status: Active Grant

• Current Assignee: Dialight Corporation (Dialight PLC)
• Original Assignee: Dialight Corporation (Dialight PLC)
• Inventors: Burton, Thomas R., Vines, John H., Liskoff, Richard, Peck, John Patrick, Spiridonov, Aleksandr Olegovich
• Primary Examiner(s): MAY, ROBERT J
• Application Number:
  US13/572,373
• Publication Number:
  US 20130039044A1
• Time in Patent Office: 1,054 Days
• Field of Search: 362/231, 362/362, 362/267, 340/907, 116/63.R
• US Class Current: 1/1
• CPC Class Codes: F21L 2/00 Systems of electric lighting devices systems employing both electric and non-electric light sources or exchangeable light sources F21L27/00
• CPC Class Codes: F21L 4/02 characterised by the provision of two or more light sources
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21W 2111/02 for roads, paths or the like
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The present disclosure relates generally to an integrated signal light head. In one embodiment, the integrated signal light head includes a molded housing for holding at least one light emitting diode (LED) light source and a power supply compartment coupled to the molded housing. As a result, a power supply may be remotely located and independent of the at least one LED light source.

Claims

1. An integrated signal light head, comprising:

a molded housing having an interior volume;

a sealed power supply coupled to the interior volume of the molded housing, wherein the sealed power supply is sealed via a first cover;

a sealed light engine coupled to the interior volume of the molded housing, wherein the sealed light engine comprises one or more light emitting diodes (LEDs), wherein the sealed light engine is sealed via a second cover, wherein the sealed light engine is physically separated from the sealed power supply;

a door coupled to the molded housing to provide access to the sealed power supply and the sealed light engine; and

at least one lens coupled to the door, wherein the at least one lens and the sealed light engine are independently rotatable with respect to the molded housing.

2. The integrated signal light head of claim 1, wherein the at least one lens is keyed to fix an orientation of the at least one lens.

3. The integrated signal light head of claim 1, wherein the at least one lens comprises a collimating lens and an exterior spreading lens.

4. The integrated signal light head of claim 3, wherein the exterior spreading lens has an optical feature that spreads light in a non-symmetric light distribution pattern.

5. The integrated signal light head of claim 1, wherein the one or more LEDs are positioned in a non-symmetric pattern with respect to a first axis and a second axis.

6. The integrated signal light head of claim 1, wherein the door is coupled to the molded housing via a hinge, the hinge comprising:

one or more members on the molded housing; and

one or more members on the door, wherein the one or more members on the molded housing and the one or more members on the door are mated by inserting a pin into the one or more members on the molded housing and the one or more members on the door that are coupled together.

7. The integrated signal light head of claim 6, wherein the one or more members are located on opposite sides of the molded housing to receive the door on either one of the opposite sides.

8. The integrated signal light head of claim 1, wherein the sealed power supply comprises a direct current (DC) convertor providing a constant current to the sealed light engine.

9. The integrated signal light head of claim 1, wherein the molded housing includes a wire runway.

10. The integrated signal light head of claim 1, wherein the molded housing includes one or more mounting openings for providing a variety of mounting configurations of the sealed light engine.

11. The integrated traffic signal light head of claim 1, wherein the sealed power supply is coupled to the interior volume via a snap lock.

12. An integrated traffic signal light head, comprising:

a plurality of molded housings coupled together, wherein each one of the plurality of molded housings comprises;

an interior volume;

a sealed power supply coupled to the interior volume of the molded housing, wherein the sealed power supply is sealed via a first cover;

a sealed light engine coupled to the interior volume of the molded housing, wherein the sealed light engine comprises one or more light emitting diodes (LEDs), wherein the sealed light engine is sealed via a second cover, wherein the sealed light engine is physically separated from the sealed power supply;

a door coupled to the molded housing to provide access to the sealed power supply and the sealed light engine; and

at least one lens coupled to the door, wherein the at least one lens and the sealed light engine are independently rotatable with respect to the molded housing.

13. The integrated traffic signal light head of claim 12, wherein at least one of the plurality of molded housings includes a terminal block.

14. The integrated traffic signal light head of claim 13, wherein a center one of the plurality of molded housings includes the terminal block.

15. The integrated traffic signal light head of claim 13, wherein a wiring electrically connecting the sealed light engine to the terminal block is located in a wire runway to remove the wiring from a light path of the sealed light engine.

16. The integrated signal light head of claim 12, wherein the door is coupled to the molded housing via a hinge, the hinge comprising:

one or more members on the molded housing; and

one or more members on the door, wherein the one or more members on the molded housing and the one or more members on the door are mated by inserting a pin into the one or more members on the molded housing and the one or more members on the door that are coupled together.

17. The integrated signal light head of claim 12, wherein the sealed power supply comprises a direct current (DC) convertor providing a constant current to the sealed light engine.

18. The integrated traffic signal light head of claim 12, wherein the sealed power supply is coupled to the interior volume via a snap lock.

19. An integrated signal light head, comprising:

a molded housing, the molded housing comprising;

an interior volume;

a plurality of mounting holes for providing a plurality of mounting configurations; and

one or more snap hook features;

a sealed power supply comprising one or more snap hook features, wherein the sealed power supply is coupled to the interior volume of the molded housing via the one or more snap hook features of the sealed power supply coupled to the one or more snap hook features of the molded housing, wherein the sealed power supply is sealed via a first cover;

a sealed light engine coupled to the interior volume of the molded housing via one or more of the plurality of mounting holes of the molded housing, wherein the sealed light engine comprises one or more light emitting diodes (LEDs), wherein the sealed light engine is sealed via a second cover, wherein the sealed light engine is physically separated from the sealed power supply;

a hinged door coupled to the molded housing to provide access to the sealed power supply and the sealed light engine; and

at least one lens coupled to the hinged door, wherein the at least one lens and the sealed light engine are independently rotatable with respect to the molded housing.