Lighting System with Beam Conditioning

• US 20110051414A1
• Filed: 08/27/2010
• Published: 03/03/2011
• Est. Priority Date: 08/28/2009
• Status: Abandoned Application

• Current Assignee: Firefly LED Lighting Inc.
• Original Assignee: Firefly LED Lighting Inc.
• Inventors: Kernion, William J., Bailey, Joel Brad, Barcik, Stephen J.
• Application Number:
  US12/870,012
• Publication Number:
  US 20110051414A1
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: B29C 48/92 Measuring, controlling or regulating
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• 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: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 19/0055 by screwing
• CPC Class Codes: F21V 19/04 with provision for changing light source, e.g. turret auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/0457 the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
• CPC Class Codes: F21V 29/54 using thermoelectric means, e.g. Peltier elements
• CPC Class Codes: F21V 29/673 the fans being used for intake
• CPC Class Codes: F21V 29/713 in direct thermal and mechanical contact of each other to form a single system
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/81 with pins or wires having different shapes, lengths or spacing
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2107/20 on convex supports or substrates, e.g. on the outer surface of spheres
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/15 : Organic light-emitting diodes [OLED]

Abstract

A lighting system is presented that includes a replaceable illumination module removably coupled to a base module. The replaceable illumination module includes one or more solid state lighting elements on a printed circuit board electrically and thermally connected to the base module. The base module may include a heat sink, where the heat sink is in thermal contact with the replaceable illumination module, and dissipates heat generated by the one or more solid state lighting elements during operation of the lighting system. The replaceable illumination module may also include one or more beam conditioning elements for generating a specified beam. The lighting system may be connected to an automated control network and may be automatically controlled thereby, or may be used to control some other system. The heat sink may be generated via a dynamically controllable extrusion die.

Claims

1. A lighting system, comprising:

one or more solid state lighting elements;

a printed circuit board connected to the one or more solid state lighting elements for the provision of power to the one or more solid state lighting elements; and

one or more beam conditioning optical elements proximate to the one or more solid state lighting elements for generating a specified beam, wherein at least one of the one or more beam conditioning optical elements is configured to spectrally transform light from the one or more solid state lighting elements by absorbing photons with a first spectral distribution and emitting photons with a second spectral distribution.

2. The lighting system of claim 1, wherein the at least one of the one or more beam conditioning optical elements comprises one or more of:

a phosphor material;

a nanophotonic material;

a crystalline photonic material;

an optical fiber material;

a photonic crystal fiber material;

an engineered microstructure material;

or

a dielectric waveguide material.

3. The lighting system of claim 1, wherein the one or more beam conditioning optical elements comprise one or more beam forming elements, wherein the one or more beam forming elements are configured to modify a spatial intensity distribution of the photons of the second spectral distribution for control of beam concentration and beam divergence.

4. The lighting system of claim 3, wherein the one or more beam forming elements comprise at least one of:

one or more reflective optical elements;

one or more diffractive optical elements;

or

one or more refractive elements.

5. The lighting system of claim 4, wherein the one or more refractive element comprise one or more of:

one or more lenses;

or

one or more micro-lens arrays.

6. The lighting system of claim 3, wherein the one or more beam forming elements comprise one or more of:

one or more prism structures;

or

one or more Fresnel lenses.

7. The lighting system of claim 1, wherein the lighting system further comprises:

one or more sensors proximate to the one or more beam conditioning optical elements; and

control circuitry coupled to the one or more sensors, wherein the control circuitry is configured to;

monitor spectral distribution or intensity distribution of spectrally transformed light from the one or more solid state lighting elements via the one or more sensors; and

modify at least one or more of the beam conditioning optical elements to control color temperature or intensity distribution of the beam.

8. The lighting system of claim 7, wherein the one or more sensors comprise one or more of:

a photosensor;

a color sensor;

or

a light-intensity sensor.

9. The lighting system of claim 7, wherein the control circuitry is configured to couple to an automated control network for regulation of color output or light-intensity output of the lighting system by the automated control network.

10. The lighting system of claim 7, wherein the control circuitry is configured to wirelessly couple to the automated control network.

11. The lighting system of claim 1, wherein the one or more solid state lighting elements comprise at least one of:

a direct current light emitting diode;

an alternating current light emitting diode;

a multicolor light emitting diode;

an organic light emitting diode;

or

a flexible-circuit light emitting diode.

12. The lighting system of claim 1, wherein the one or more solid state lighting elements comprise a plurality of solid state lighting elements, wherein at least two of the plurality of solid state lighting elements each comprises a respective specified spectral output, and wherein at least one of the one or more beam conditioning optical elements is configured to homogenize light output from the plurality of solid state lighting elements.

13. A method for beam conditioning in a lighting system, comprising:

providing power to the lighting system, wherein the lighting system comprises;

one or more solid state lighting elements;

a printed circuit board connected to the one or more solid state lighting elements for the provision of power to the one or more solid state lighting elements; and

one or more beam conditioning optical elements proximate to the one or more solid state lighting elements for generating a specified beam;

wherein said providing comprises providing power to the one or more solid state lighting elements via the printed circuit board;

spectrally transforming light from the one or more solid state lighting elements via at least one of the beam conditioning optical elements comprising;

absorbing photons with a first spectral distribution and emitting photons with a second spectral distribution;

wherein the at least one of the one or more beam conditioning optical elements comprises one or more of;

a phosphor material;

a nanophotonic material;

a crystalline photonic material;

an optical fiber material;

a photonic crystal fiber material;

an engineered microstructure material;

or

a dielectric waveguide material.

14. The method of claim 13, wherein the one or more beam conditioning optical elements comprise one or more beam forming elements, wherein the one or more beam forming elements are configured to modify a spatial intensity distribution of the photons of the second spectral distribution for control of beam concentration or beam divergence.

15. The method of claim 14, wherein the one or more beam forming elements comprise at least one of:

one or more reflective optical elements;

one or more diffractive optical elements;

or

one or more refractive elements.

16. The method of claim 15, wherein the one or more refractive elements comprise one or more of:

one or more lenses;

or

one or more micro-lens arrays.

17. The method of claim 14, wherein the one or more beam forming elements comprise one or more of:

one or more prism structures;

or

one or more Fresnel lenses.

18. The method of claim 13, wherein the lighting system further comprises:

one or more sensors proximate to the one or more beam conditioning optical elements; and

control circuitry coupled to the one or more sensors, wherein the control circuitry is configured to;

monitor spectral distribution or intensity distribution of spectrally transformed light from the one or more solid state lighting elements via the one or more sensors; and

modify at least one of the one or more of the beam conditioning optical elements to control color temperature or intensity distribution of the beam.

19. The method of claim 18, wherein the one or more sensors comprise one or more of:

a photosensor;

a color sensor;

or

a light-intensity sensor.

20. The method of claim 18, wherein the control circuitry is configured to couple to an automated control network for regulation of color output or light-intensity output of the lighting system by the automated control network.

21. The method of claim 18, wherein the control circuitry is configured to wirelessly couple to the automated control network.

22. The method of claim 13, wherein the one or more solid state lighting elements comprise at least one of:

a direct current light emitting diode;

an alternating current light emitting diode;

a multicolor light emitting diode;

an organic light emitting diode;

or

a flexible-circuit light emitting diode.

23. The method of claim 13, wherein the one or more solid state lighting elements comprise a plurality of solid state lighting elements, wherein at least two of the plurality of solid state lighting elements each comprises a respective specified spectral output, and wherein at least one of the one or more beam conditioning optical elements is configured to homogenize light output from the plurality of solid state lighting elements.