Replaceable Illumination Module

• US 20110050124A1
• 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:
  US12/869,990
• Publication Number:
  US 20110050124A1
• Time in Patent Office: Days
• US Class Current: 315/294
• 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 replaceable illumination module, comprising:

one or more solid state lighting elements;

one or more beam conditioning optical elements proximate to the one or more solid state lighting elements, wherein the one or more beam conditioning optical elements are configured to modify light output from the one or more solid state lighting elements to produce a specified beam;

a printed circuit board, electrically and thermally connected to the one or more solid state lighting elements;

a thermal spreading element comprised in or coupled to the printed circuit board, wherein the thermal spreading element is configured to dissipate heat from the one or more solid state lighting elements; and

a connector coupled to the thermal spreading element, wherein the connector is configured to removably couple the replaceable illumination module to a base module that comprises a heat sink, wherein the connector electrically couples the base module to the replaceable illumination module.

2. The replaceable illumination module of claim 1, wherein the thermal spreading element comprises an interface surface for thermally connecting to a heat sink.

3. The replaceable illumination module of claim 1, wherein the one or more beam conditioning optical elements are configured to control color temperature during operation of the replaceable illumination module.

4. The replaceable illumination module 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.

5. The replaceable illumination module of claim 1, further comprising one or more sensors, wherein at the one or more sensors comprise one or more of:

a photosensor;

a color sensor;

a light-intensity sensor;

or

a temperature sensor.

6. The replaceable illumination module of claim 5, wherein the one or more sensors are coupled to an automated control network for regulation of color output or light-intensity output in the replaceable illumination module by the automated control network.

7. The replaceable illumination module of claim 6, wherein the one or more sensors are configured to wirelessly couple to the automated control network.

8. The replaceable illumination module of claim 1, further comprising:

a wavelength sensor component for sensing and modulating color temperature output of the replaceable illumination module.

9. The replaceable illumination module of claim 1, further comprising:

an intensity sensor component for sensing and modulating light intensity output of the replaceable illumination module.

10. The replaceable illumination module of claim 1, wherein when the replaceable illumination module is coupled to the base module the replaceable illumination module thermally connects to the heat sink via the thermal spreading element, wherein the heat sink dissipates heat generated by the one or more solid state lighting elements during operation.

11. A method for operation of a replaceable illumination module, comprising:

receiving power to an electrical connector of the replaceable illumination module from an external power source;

providing power to a printed circuit board of the replaceable illumination module via the connector, wherein the printed circuit board connects to one or more solid state lighting elements of the replaceable illumination module, and wherein the circuit board comprises or is connected to a thermal spreading element, wherein the thermal spreading element comprises an interface surface for thermally connecting to a heat sink;

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

emitting light via the one or more solid state lighting elements, wherein the one or more solid state lighting elements further produce heat;

transforming at least a portion of the emitted light from the one or more solid state lighting elements via one or more beam conditioning optical elements comprised in the replaceable illumination module; and

conducting heat from the one or more solid state lighting elements via the thermal spreading element to the heat sink via the interface surface.

12. The method of claim 11, wherein the one or more beam conditioning optical elements modify light output from the one or more solid state lighting elements.

13. The method of claim 11, wherein the one or more beam conditioning optical elements are used to control color temperature.

14. The method of claim 11, 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.

15. The method of claim 11, wherein the replaceable illumination module further comprises:

one or more sensors, wherein each of the one or more sensors comprises one or more of;

a photosensor;

a color sensor;

a light-intensity sensor;

or

a temperature sensor.

16. The method of claim 15, wherein the one or more sensors are coupled to an automated control network for regulation of color output or light-intensity output in the replaceable illumination module by the automated control network.

17. The method of claim 16, wherein the one or more sensors are configured to wirelessly couple to the automated control network.

18. The method of claim 11, wherein the replaceable illumination module further comprises:

a wavelength sensor component for sensing and modulating color temperature output of the replaceable illumination module.

19. The method of claim 11, wherein the replaceable illumination module further comprises:

an intensity sensor component for sensing and modulating light intensity output of the replaceable illumination module.

20. The method of claim 11, wherein the heat sink comprises:

at least one extrusion;

wherein the at least one extrusion comprises a plurality of heat fins;

wherein the plurality of heat fins is made of a material with a thermal conductivity of at least approximately 180 W/m-K;

wherein each heat fin comprises a specified nonzero curvature; and

wherein the plurality of heat fins forms a plurality of air flow channels for convectively dissipating heat to the surroundings.