IP Library Granted Patent US 8,410,402
Granted Patent B2
US 8,410,402 · App. 11/845,985 · Granted Apr 2, 2013

Method and apparatus for using light emitting diodes for removing moisture

Inventor: Thomas R. Burton (Germantown, TN)
Assignee: Dialight Corporation
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Quick Facts
Patent No.
US 8,410,402
App. No.
11/845,985
Granted
Apr 2, 2013
Kind
B2
Abstract

A method and apparatus for removing moisture from a lighting apparatus is disclosed. In one embodiment of the present invention, the apparatus for removing moisture from a lighting apparatus includes at least one light emitting diode (LED) for outputting visible light and at least one LED for outputting infrared light to remove moisture from the housing.

Claims (23)

1. An apparatus for removing moisture from a housing of a lighting apparatus, comprising:

at least one light emitting diode (LED) for outputting visible light;

at least one LED for outputting infrared light to remove moisture from said housing, wherein a number of the at least one LED for outputting infrared light is a function of an amount of heat needed to remove moisture from an outer surface of the housing of the lighting apparatus; and

a moisture sensor, wherein said moisture sensor triggers said at least one LED for outputting infrared light to turn on when said moisture sensor detects moisture on said housing.

2. The apparatus of claim 1 , wherein said at least one LED for outputting visible light produces light wavelengths between 400 nanometers (nm) -700 nm.

3. The apparatus of claim 1 , wherein said at least one LED for outputting infrared light produces light wavelengths greater than or equal to 750 nanometers.

4. The apparatus of claim 1 , wherein said at least one LED for outputting infrared light produces radiant heat.

5. The apparatus of claim 1 , wherein said LED for outputting infrared light is constructed from aluminum gallium arsenide.

6. The apparatus of claim 1 , wherein said lighting apparatus comprises a traffic signal light.

7. The apparatus of claim 1 , wherein said lighting apparatus comprises a beacon signal.

8. An apparatus for removing moisture from a housing of a lighting apparatus, comprising:

at least one means for outputting visible light;

at least one means for outputting infrared light to remove moisture from said housing, wherein a number of the at least one means for outputting infrared light is a function of an amount of heat needed to remove moisture from an outer surface of the housing of the lighting apparatus; and

a means for sensing moisture, wherein said means for sensing moisture triggers said means for outputting infrared light to turn on when said means for sensing moisture detects moisture on said housing.

9. The apparatus of claim 8 , wherein said means for outputting visible light produces light wavelengths between 400 nanometers (nm) - 700 nm.

10. The apparatus of claim 8 , wherein said means for outputting infrared light produces light wavelengths greater than or equal to 750 nanometers.

11. The apparatus of claim 8 , wherein said at least one LED for outputting infrared light produces radiant heat.

12. The apparatus of claim 8 , wherein said means for outputting infrared light is constructed from aluminum gallium arsenide.

13. A method for removing moisture from a housing of a lighting apparatus, comprising:

providing at least one light emitting diode (LED) for outputting visible light;

providing at least one LED for outputting infrared light to remove moisture from said housing, wherein a number of the at least one LED for outputting infrared light that is provided is a function of an amount of heat needed to remove moisture from an outer surface of the housing of the lighting apparatus;

sensing moisture on said housing; and

turning on said at least one LED for outputting infrared light to remove moisture from said housing in response to said sensing said moisture on said housing.

Assignments (5)
SECURITY INTEREST Recorded Apr 23, 2026
From: DIALIGHT CORPORATION
To: HSBC UK BANK PLC
Reel/Frame 075465/0389 →
INTELLECTUAL PROPERTY ASSIGNMENT AND LICENSE AGREEMENT Recorded Dec 6, 2024
From: DIALIGHT CORPORATION
To: LEOTEK ELECTRONICS USA, LLC
Reel/Frame 069532/0449 →
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jul 29, 2024
From: HSBC UK BANK PLC
To: DIALIGHT CORPORATION
Reel/Frame 068171/0975 →
SECURITY INTEREST Recorded Jul 21, 2022
From: DIALIGHT CORPORATION
To: HSBC UK BANK PLC, AS SECURITY AGENT
Reel/Frame 060803/0351 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 28, 2007
From: BURTON, THOMAS R.
To: DIALIGHT CORPORATION
Reel/Frame 019757/0836 →
Continuity (2)
Provisional Application 60840548 · Aug 28, 2006
Related Publication 20080047943A1 · Feb 28, 2008