Switchplate area light

• US 7,506,990 B2
• Filed: 04/17/2006
• Issued: 03/24/2009
• Est. Priority Date: 01/21/2006
• Status: Expired due to Fees

• Current Assignee: Nite Ize Incorporated
• Original Assignee: Nite Ize Incorporated
• Inventors: Glazner, Gregory F
• Primary Examiner(s): O'Shea; Sandra L.
• Assistant Examiner(s): Lee; Gunyoung T.
• Application Number:
  US11/279,904
• Publication Number:
  US 20070171625A1
• Time in Patent Office: 1,072 Days
• Field of Search: 362/95, 362/276, 362/800, 362/802, 200/310, 200/312, 200/317, 315/129, 315/133, 315/51, 315/56, 315/74, 315/75, 340/640, 340/656
• US Class Current: 362/95
• CPC Class Codes: F21S 8/035 by means of plugging into a wall outlet, e.g. night light
• CPC Class Codes: H01H 9/18 Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
• CPC Class Codes: H05B 45/395 Linear regulators
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A light emitting diode (LED) and associated driver circuit wherein the LED is mounted on the front of a switchplate and the driver circuit on the back of the switchplate. The LED is mounted at a downward angle on the outside of the switchplate so as to light a pathway beneath the switchplate. The drive electronics are designed to work with a return path through an electrical load. Additionally, the LED driver circuit is designed to allow operation of the LED with both resistive and reactive loads controlled by the switch to which the switchplate is connected. The device is also designed to be connected to any electrically valid combination of 2-way, 3-way, and 4-way switches either singly or in combination.

Claims

1. An area light for providing pathway lighting in darkened areas comprising:

a body member consisting of a switchplate for use over one or more alternating current electrical switches or an outlet plate for use over one or more alternating current electrical outlets, wherein said switchplate has a back; and

a light emitting diode (LED) mounted on said switchplate, said LED having a longitudinal axis along which light is primarily emitted, so that the longitudinal axis of light emitted from said light emitting diode illuminates the pathway directly beneath said switchplate or outlet plate; and

a light emitting diode driver circuit to power said light emitting diode, said LED driver circuit mounted on the back of the switchplate or outlet plate, said LED driver circuit drawing electrical energy from said alternating current power source covered by said switch plate or outlet plate, wherein a return path for current through said light emitting diode is through an electrical load controlled by said electrical switch or outlet covered by said plate, and wherein the plate, LED, and LED driver circuit are configured to be mounted and installed without the removal of a switch or outlet upon which the switchplate is installed; and

wherein said light emitting diode is molded in a protruding housing, having a downward facing opening on said switch or outlet plate.

2. The area light of claim 1, wherein said switch plate or outlet plate has one or more holes formed to receive lead wiring from said light emitting diode and the lead wires emanating from the light emitting diode are routed through said one or more holes in said switchplate or outlet plate.

3. The area light of claim 1, wherein the light emitting diode has a molded lens, further comprising a material to encase the light emitting diode up to the point of said molded lens such that said molded lens protrudes from said semi-conical housing.

4. The area light of claim 1, wherein said light emitting diode driver circuit is housed in an elongated rectangular prism mounted on the back of the switchplate of claim 1 in such a manner as to be disposed to fit between the electrical switch and the side of an electrical outlet box into which the electrical switch is installed.

5. The area light of claim 1, further including an ambient light sensing component mounted on the front of the switchplate or outlet plate and associated wiring and modifications to the light emitting diode driver circuit are provided to turn off the light emitting diode when the ambient light reaches a predetermined level.

6. The area light of claim 1, further including a manually operated switch mounted on the front of the switchplate or outlet plate and associated wiring and modifications to the light emitting diode driver circuit are provided to allow a user to turn off the light emitting diode when desired.

7. The area light of claim 1, further including both an ambient light sensing component and a manually operated switch mounted on the front of the switchplate or outlet plate and associated wiring and modifications to the light emitting diode driver circuit are provided to turn off the light emitting diode when the ambient light reaches a predetermined level and to allow a user to turn off the light emitting diode when desired.

8. The area light of claim 1 wherein said semi-conical housing has a downward facing opening through which light from said light emitting diode passes.

9. The area light of claim 1 wherein said light emitting diode driver circuit drives said light emitting diode below a rated output of said light emitting diode.

10. The area light of claim 1 wherein said light emitting diode includes a light emitting portion and wherein said light emitting portion protrudes less than 5 mm from said switchplate.

11. The area light of claim 1 wherein said LED driver circuit is sufficiently thin to fit between a body of an existing switch or outlet and a side of an existing electrical box.

12. The area light of claim 1 wherein said switchplate is configured to fit on a standard switch or plug.

13. The area light of claim 1 wherein said switchplate is configured to work with a 2-way single pole, single throw switch, without modification to the 2-way SPST switch.

14. The area light of claim 1 wherein said switchplate is configured to work with a 3-way single pole, double throw switch, without modification to the 3-way SPDT switch.

15. The area light of claim 1 wherein said switchplate is configured to work with a 4-way double pole, double throw switch with cross-connect, without modification to the 4-way DPDT switch.

16. The area light of claim 1 wherein said LED driver circuit is connected across traveler wires of a plurality switches.

17. The area light of claim 1 wherein said switchplate, LED, and LED driver circuit are configured to be mounted and installed without the removal an existing electrical box upon which the switchplate is installed.