Dimmable LED lamp

A lamp comprising:

• a light-emitter,
• a reflector surrounding said light emitter and widening away from the light-emitter to an exit aperture,
• a dielectric total internally reflecting concentrator with a convex entrance aperture coincident with said exit aperture of said reflector, said concentrator having an exit aperture narrower than said convex entrance aperture situated at an opposite end of said concentrator from said convex entrance aperture,
• said exit aperture of said concentrator in optical communication with a dielectric ejector with its base coincident with the narrow end of the sidewalls of said concentrator;
• a hollow ball having a phosphor coating that converts part of the light from said light emitter to a different wavelength, and transmits part of the light from said light emitter,
• wherein said hollow ball is a dielectric sphere surrounding said ejector, said ejector having a tip near the center of said dielectric sphere.

A dimmable LED lamp comprising:

• an array of multiple adjacent light-emitting diodes;
• a conical reflector surrounding said array and expanding from the array into an exit aperture;
• a dielectric total internally reflecting concentrator with its convex entrance aperture coincident with the said exit aperture of said conical reflector;
• said concentrator having its own exit aperture situated at the opposite end from said convex entrance aperture;
• said exit aperture of said concentrator comprising a dielectric ejector with its base coincident with the narrow end of the sidewalls of said concentrator;
• said dielectric ejector surrounded by a hollow dielectric ball with a phosphor coating on its interior surface, said ejector having a tip near the center of said dielectric ball;
• the luminosity of said LED array controlled by a quantum dimmer;
• wherein the heat from said LED array and the phosphor is cooled by a helical fin thermal management system.