Light device having LED illumination and electronic circuit board in an enclosure

• US 20080123340A1
• Filed: 11/27/2006
• Published: 05/29/2008
• Est. Priority Date: 11/27/2006
• Status: Abandoned Application

• Current Assignee: Led Green Power Incorporated
• Original Assignee: Led Green Power Incorporated
• Inventors: McClellan, Thomas
• Application Number:
  US11/605,799
• Publication Number:
  US 20080123340A1
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21K 9/69 Details of refractors forming part of the light source
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 27/00 Cable-stowing arrangements structurally associated with lighting devices, e.g. reels storing lengths of cable in general B65H; the lighting devices being vehicle headlamps F21S41/192; the lighting devices being vehicle lights F21S43/195
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/325 Pulse-width modulation [PWM]
• CPC Class Codes: H05B 45/355 Power factor correction [PFC]; Reactive power compensation
• CPC Class Codes: H05B 45/3725 Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/375 using buck topology
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: H05K 1/0272 Adaptations for fluid transport, e.g. channels, holes
• CPC Class Codes: H05K 1/05 Insulated conductive substrates, e.g. insulated metal substrate
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A light device having a light source, lenses adjacent to the light source, a housing for securing the light source and the lenses, and a light fixture for securing the housing. The light source includes high efficiency light emitting diodes (LEDs), driver circuitry, and a heat sink mounted and integrated on a common board. The driver circuitry receives multiple input voltages, supplies an appropriate power signal, provides over-voltage protection and controls dimming for the LEDs. Lenses magnify and focus light emitting from the LEDs at a diffusion angle between 10° and 100°. The housing comprises a first and a second portion fittable together (e.g., threads, screws and openings). LEDs are operable between 250 mA to 1 A at 3.2 volts and produce at least 55 lumens per LED. The light fixture may be rotateable to adjust the direction of the light from the LED. The light fixture may be puck-shape.

Claims

1. A lighting device comprising:

a light source comprising;

a plurality of high efficiency light emitting diodes (LEDs);

driver circuitry therefore; and

a heat sink mounted on a common board;

a plurality of lenses housed on said light source, wherein a number of said plurality of lenses correspond to said plurality of LEDs; and

a housing for securing said light source and said plurality of lenses, and wherein said housing is configured for installation in a lighting fixture.

2. The lighting device as described in claim 1, wherein said common board comprises a single printed circuit board comprising said heat sink integrated therein for dissipating heat and coupled to said plurality of LEDs, and wherein said driver circuitry is coupled to said printed circuit board and further coupled to drive said plurality of LEDs, said driver circuitry operable to receive multiple input voltages and supplying an appropriate power signal to drive said plurality of LEDs, and wherein said driver circuitry is further operable to provide over-voltage protection for said plurality of LEDs, and wherein said driver circuitry is further operable to control dimming of said plurality of LEDs.

3. The lighting device as described in claim 1, wherein said plurality of LEDs is operable substantially between 250 mA to 1 A at 3.2 volts and produces at least 55 lumens per LED.

4. The lighting device as described in claim 1, wherein said plurality of lenses magnifies and focuses light emanating from said plurality of LEDs.

5. The lighting device as described in claim 1, wherein said plurality of lenses diffuse light emanating from said plurality of LEDs at an angle wherein said angle is selected from a group ranging substantially between 100 and 1000.

6. The lighting device as described in claim 1, wherein said plurality of lenses is formed in a lens housing comprising a plurality of tri-lens optics.

7. The lighting device as described in claim 1, wherein said housing comprises a first portion and a second portion, wherein said first portion and said second portion are fittable together for securing said light source and said plurality of lenses.

8. The lighting device as described in claim 7, wherein said first and said second portion comprise a plurality of threads for securing said light source and said plurality of lenses.

9. The lighting device as described in claim 7, wherein said first and said second portion comprise a plurality of screws and openings to secure said light source and said plurality of lenses.

10. The lighting device as described in claim 1, wherein said plurality of LEDs is arranged in groups of three, and wherein said plurality of lenses is arranged in groups of three forming a plurality of tri-lens optics mountable on said plurality of LEDs arranged in groups of three, and wherein said housing secures and houses said light source comprising said plurality of LEDs arranged in groups of three and said plurality of lenses arranged in groups of three.

11. A lighting device comprising:

a light source comprising a high efficiency light emitting diode (LED), driver circuitry therefore and a heat sink mounted on a common board; and

a light fixture for securing and housing said light source.

12. The lighting device as described in claim 11, wherein said common board comprises a single printed circuit board comprising said heat sink integrated therein for dissipating heat and coupled to said LED, and wherein said driver circuitry is coupled to said printed circuit board and further coupled to drive said LED, said driver circuitry operable to receive multiple input voltages and supplying an appropriate power signal to drive said LED, and wherein said driver circuitry is further operable to provide over-voltage protection for said LED, and wherein said driver circuitry is further operable to control dimming of said LED.

13. The lighting device as described in claim 11, wherein said LED is operable substantially between 250 mA to 1 A at 3.2 volts and produces at least 55 lumens.

14. The lighting device as described in claim 11 further comprising:

a lens housed on said light source.

15. The lighting device as described in claim 14, wherein said lens magnifies and focuses light emanating from said LED.

16. The lighting device as described in claim 14, wherein said lens diffuses light emanating from said LED at an angle wherein said angle is selected from a group ranging substantially between 10°

and 100°

.

17. The lighting device as described in claim 14, wherein said light source and said lens are secured and housed in said light fixture.

18. The lighting device as described in claim 11 wherein said lighting fixture comprises a first portion and a second portion, wherein said first portion and said second portion are fittable together for securing said light source.

19. The lighting device as described in claim 11, wherein said lighting fixture is rotateable and operable to adjust the direction of light emanating from said LED.

20. The lighting device as described in claim 11, wherein said lighting fixture is puck shaped and comprises a base portion and a top portion, wherein said base is operable to mount on a structure and receive a power supply conductor for lighting said LED, and wherein said light source is mounted on said base, and wherein said top portion mounts on said base portion for securing and holding said light source.

21. A light device comprising:

a light source comprising a plurality of high efficiency light emitting diodes (LEDs), driver circuitry and a heat sink mounted on a common board;

a plurality of lenses housed adjacent to said light source, wherein a number of said plurality of lenses correspond to said plurality of LEDs;

a housing for securing said light source and said plurality of lenses, and wherein said housing is configured for installation in a lighting fixture; and

a light fixture for securing said housing.

22. The light device as described in claim 21, wherein said common board comprises a single printed circuit board comprising said heat sink integrated therein for dissipating heat and coupled to said plurality of LEDs, and wherein said driver circuitry is coupled to said printed circuit board and further coupled to drive said plurality of LEDs, said driver circuitry operable to receive multiple input voltages and supplying an appropriate power signal to drive said plurality of LEDs, and wherein said driver circuitry is further operable to provide over-voltage protection for said plurality of LEDs, and wherein said driver circuitry is further operable to control dimming of said plurality of LEDs.

23. The light device as described in claim 21, wherein said plurality of lenses magnify and focus light emanating from said plurality of LEDs.

24. The light device as described in claim 21, wherein said plurality of lenses diffuse light emanating from said plurality of LEDs at an angle wherein said angle is selected from a group ranging substantially between 10°

and 1000.

25. The light device as described in claim 21, wherein said plurality of lenses is formed in a lens housing comprising a plurality of tri-lens optics.

26. The light device as described in claim 21, wherein said housing comprises a first portion and a second portion, wherein said first portion and said second portion are fittable together for securing said light source and said plurality of lenses.

27. The light device as described in claim 21, wherein said lighting fixture is rotateable and operable to adjust the direction of light emanating from said plurality of LEDs.