LED floodlight system

• US 20070019415A1
• Filed: 04/20/2006
• Published: 01/25/2007
• Est. Priority Date: 04/22/2005
• Status: Abandoned Application

• Current Assignee: ITT Manufacturing Enterprises, Inc. (ITT, Inc.)
• Original Assignee: ITT Industries (ITT, Inc.)
• Inventors: Hagan, Luke, Leblanc, Kenneth, Hammond, Bill
• Application Number:
  US11/409,512
• Publication Number:
  US 20070019415A1
• Time in Patent Office: Days
• US Class Current: 362/299
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 5/003 using holograms
• CPC Class Codes: F21W 2131/10 Outdoor lighting
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2113/17 forming a single encapsulated light source
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A new and unique LED-based floodlight is provided having an LED light module and a control module. In operation, the LED light module responses to one or more control signals from the control module, and provides an LED array of light having a broad beam pattern from side-to-side with a selected lamp color, brightness, or some combination thereof; while the control module responds to one or more user inputs from a user, and provides the one or more control signals for operating the LED array module in order to provide the LED array of light having the broad beam pattern from side-to-side with the selected lamp color, brightness, or some combination thereof. The broad beam pattern of the LED array of light effectively has a lumen output of about 200 lumens that is equivalent to a 35 watt halogen floodlight output of the same angle. The selected lamp color may include white, warm white, nav red, nav blue and a “bug” light, as well as other suitable lamp colors, while the selected brightness may include different dimming levels for setting the overall brightness of the LED-based floodlight.

Claims

1. A floodlight comprising:

an LED light module, responsive to one or more control signals, for providing an LED array of light having a broad beam pattern from side-to-side with a selected lamp color, brightness, or some combination thereof; and

a control module, responsive to one or more user inputs, for providing the one or more control signals for operating the LED array module in order to provide the LED array of light having the broad beam pattern from side-to-side with the selected lamp color, brightness, or some combination thereof.

2. A floodlight according to claim 1, wherein the selected lamp color includes white, warm white, nav red, nav blue and a “

bug”

light.

3. A floodlight according to claim 1, wherein the selected brightness includes different dimming levels.

4. A floodlight according to claim 1, wherein the floodlight includes a shut-down mode memory module that saves settings so the floodlight may be re-started at a saved setting.

5. A floodlight according to claim 1, wherein the floodlight includes a volt operation module for providing a 12/24 volt operation.

6. A floodlight according to claim 1, wherein the LED array includes dual red, green and blue (RGB) LEDS that are wired in parallel so that if one RGB LED fails, the floodlight may be operated with the other RGB LED.

7. A floodlight according to claim 1, wherein the control module includes a user keypad controller having at least three buttons, including a color button, a dim button and an on/off button for receiving the one or more user inputs.

8. A floodlight according to claim 1, wherein the LED light module includes a micro diffusion filter module arranged in relation to an LED light module for providing a substantially uniform broad beam pattern and brightness and to mask the LED array visually when the floodlight is off.

9. A floodlight according to claim 8, wherein the substantially uniform broad beam pattern has a beam angle of about 20°

×

45°

.

10. A floodlight according to claim 8, wherein the micro diffusion filter module includes a holographic diffuser for homogenizing individual LED light beams and eliminating chromatic aberrations.

11. A floodlight according to claim 1, wherein the LED light module includes a plurality of micro diffusion filter modules that are interchangeable for providing a plurality of different broad beam patterns.

12. A floodlight according to claim 11, wherein the plurality of different broad beam patterns include beam angles of about 20°

×

45°

or about 45°

×

80°

.

13. A floodlight according to claim 8, wherein the floodlight includes a cover for retaining the micro diffusion filter module.

14. A floodlight according to claim 13, wherein the cover is pivotally arranged on a housing of the floodlight.

15. A floodlight according to claim 14, wherein the cover and the housing have a fully sealed waterproof seal.

16. A floodlight according to claim 1, wherein the LED light module includes a plurality of interchangeable LED color cards for providing a plurality of different lamp colors.

17. A floodlight according to claim 16, wherein the plurality of different lamp colors include white, warm white, nav red, nav blue and a “

bug”

light.

18. A floodlight according to claim 1, wherein the broad beam pattern of the LED array of light has a lumen output of about 200 lumens that is equivalent to a 35 watt halogen floodlight output of the same angle.

19. A floodlight according to claim 1, wherein the LED light module includes a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam.

20. A floodlight according to claim 19, wherein the floodlight includes a cover for retaining the dual fresnel lens.

21. A floodlight according to claim 1, wherein the LED light module includes microlens for focusing divergent light from the LED array.

22. A floodlight according to claim 1, wherein the floodlight includes a movable holder having a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam;

and a holographic diffuser for homogenizing individual LED light beams and eliminating chromatic aberrations.

23. A floodlight according to claim 22, wherein the movable holder responds to the one or more control signals, for moving from one position to another to change the broad beam pattern, including from a narrow beam pattern to a wide beam pattern, or vice versa.

24. A floodlight according to claim 1, wherein the floodlight includes an optical focusing element having a primary optics arrangement for focusing divergent light from the LED array.

25. A floodlight according to claim 24, wherein the primary optics arrangement includes a microlens.

26. A floodlight according to claim 24, wherein the optical focusing element includes a secondary optics arrangement that moves in response to a control signal, for providing the LED array of light having a selected beamwidth, including a wide beam width or a narrow beam width.

27. A floodlight according to claim 26, wherein the secondary optics arrangement includes a holographic diffuser for homogenizing individual LED light beams and eliminating chromatic aberrations.

28. A floodlight according to claim 26, wherein the secondary optics arrangement includes a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam.

29. A floodlight according to claim 26, wherein the secondary optics arrangement includes a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam;

and a holographic diffuser for homogenizing individual LED light beams and eliminating chromatic aberrations.

30. A floodlight according to claim 26, wherein the optical focusing element also includes a movable holder having the secondary optics arrangement arranged therein to move in response to the control signal.

31. A floodlight according to claim 30, wherein the secondary optics arrangement includes a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam;

and a holographic diffuser for homogenizing individual LED light beams and eliminating chromatic aberrations.

32. A floodlight according to claim 24, wherein the optical focusing element includes a dual fresnel lens for collecting and collimating the LED array of light into a desirable light beam;

and the LED array is positioned horizontally off-axis in relation to the dual fresnel lens so that the resulting output beam is elliptical in shape.

33. A floodlight having an optical arrangement for providing light on a recreational boat or vehicle, the optical arrangement comprising:

an LED array, responsive to a first control signal, for providing an LED array of light having a selected lamp color and/or brightness;

a microlens coupled to the LED array for focusing divergent light from the LED array;

a holographic diffuser for homogenizing individual light beams from the microlens and eliminating chromatic aberrations;

a dual fresnel lens for collecting and collimating the LED light into a desirable light beam;

a movable holder for holding the holographic diffuser and the dual fresnel lens and moving the same in relation to the LED array in response to a second control signal, for providing the LED array of light having a selected beamwidth, including a narrow or wide beamwidth; and

a control circuit, responsive to one or more user inputs, for providing one or more control signals for providing the LED array of light having the selected beamwidth, lamp color, brightness, or some combination thereof.

34. A floodlight according to claim 33, wherein the first control signal varies the current to each red, green and blue LED in the LED array for providing different lamp colors and brightnesses.

35. A floodlight according to claim 33, wherein the LED array is positioned horizontally off-axis in relation to the dual fresnel lens so that the resulting output beam is elliptical in shape.