LED-BASED LIGHT BULB

1 - 23 . (canceled)

24 . A light source comprising:

a light engine for generating light, the light engine including:

a platform, and

at least one LED disposed on the platform;

an enclosure surrounding a light generating area of the light engine;

a base including an active cooling unit for dissipating thermal energy away from the at least one LED; and

a conversion circuit for supplying electric power to the light engine.

25 . The light source as set forth in claim 24 , wherein the active cooling unit includes at least one of thermoelectric cooling, piezo synthetic jets, qu-pipes, heat-pipes, piezo fans and electric fans.

26 . The light source as set forth in claim 24 , wherein the light engine further includes:

a heat sink for conducting thermal energy away from the at least one LED.

27 . The light source as set forth in claim 24 , wherein the base is adapted for mating with the light engine.

28 . The light source a set forth in claim 24 , wherein the active cooling unit and the heat sink are mounted to the base.

29 . A LED lamp comprising:

a light engine including a platform and at least one LED disposed on the platform;

a base onto which the light engine is mounted;

an enclosure surrounding a light generating area of the light engine;

a power module for supplying electric power to the light engine; and

an active cooling unit mounted to the base for dissipating thermal energy away from the at least one LED.

30 . The LED lamp as set forth in claim 29 , wherein the active cooling unit includes at least one of thermoelectric cooling, piezo synthetic jets. qu-pipes, heat-pipes, piezo fans and electric fans.

31 . The LED lamp as set forth in claim 29 , wherein the base further includes:

a heat sink for conducting thermal energy away from the at least one LED.

32 . The LED lamp as set forth in claim 31 , wherein the heat sink comprises:

a slug inserted into the base for conducting the thermal energy from the at least one LED to at least one of the base and ambient air.

33 . The LED lamp as set forth in claim 31 , wherein the heat sink comprises:

a plurality of fins disposed in one of a radial and a cylindrical tube longitudinal design about an outer periphery.

34 . The LED lamp as set forth in claim 31 , wherein the heat sink extends radially from the base to conduct the thermal energy to ambient air

35 . A light source comprising:

a bulb-shaped enclosure;

a base adjacent a first end of said enclosure;

a light engine comprising a printed circuit board adjacent said first end of said enclosure; said printed circuit board including at least one LED directing light toward a second end of said enclosure; and

a means for active cooling of said light engine.

36 . The light source as set forth in claim 35 , wherein the means for active cooling is selected from at least one of thermoelectric cooling, piezo synthetic jets, qu-pipes, heat-pipes, piezo fans and electric fans.

37 . A light source comprising:

a light engine comprising a printed circuit and including at least one LED;

a light transparent or translucent enclosure receiving light generated by the light engine;

a heat sink in thermal communication with the light engine comprising i) a slug portion and ii) a plurality of radially extending fins disposed about the outer periphery of the slug portion and external to the enclosure to transfer heat from the light engine into the air;

a base for supporting the light engine, enclosure and heat sink in operative arrangement; and

a conversion circuit housed in at least a portion of the base for supplying electric power to the light engine.

38 . The light source of claim 37 , wherein the enclosure is a bulb-shaped enclosure.

39 . The light source of claim 37 , wherein the enclosure is one of spherical, elliptical, cylindrical, domed, squared, and n-sided shaped.

40 . The light source of claim 37 , wherein the base is one of a screw base and wedge base.

41 . The light source of claim 37 , wherein the base is in thermal communication with the heat sink.

42 . The light source of claim 37 , wherein the base comprises an active cooling unit for dissipating thermal energy away from the at least one LED.

43 . The light source of claim 42 , wherein the active cooling unit includes at least one of thermoelectric cooling, piezo synthetic jets, qu-pipes, heat-pipes, piezo fans and electric fans.

44 . The light source of claim 37 , wherein the enclosure comprises a wavelength converting material.

45 . The light source of claim 44 , wherein the wavelength converting material receives light of a first wavelength generated by the light engine and converts at least a portion of said light of a first wavelength to light of a second wavelength.

46 . The light source of claim 45 , wherein the wavelength converting material is a phosphor.

47 . The light source of claim 37 , wherein said light engine comprises a single substantially planar array of multiple LEDs.

48 . A light source comprising:

a light engine including a platform, and at least one LED disposed on the platform;

an enclosure fitted over a light generating area of the light engine;

a conversion circuit for supplying electric power to the light engine;

a base connected to the enclosure for housing at least a portion of the conversion circuit;

a heat sink in thermal communication with the platform for conducting thermal energy away from the at least one LED and having a plurality of fins disposed around a periphery of the heat sink and external to the enclosure.

49 . A lamp comprising:

an enclosure comprising a light translucent or light transparent material;

an electrical connector configured to connect to an external power source;

at least one LED disposed adjacent the enclosure;

a conversion circuit at least partially housed in the connector and in electrical communication with the connector for supplying electrical power to the at least one LED;

a heat sink in thermal communication with the at least one LED for conducting thermal energy away from the at least one LED and having a plurality of tins disposed around a periphery of the heat sink and outside of the enclosure.