LED-based changeable color light lamp
AssigneeLumination LLC
InventorBoris Kolodin
Life of this patent
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Abstract
Systems and methods are described that facilitate providing a user with interchangeable phosphor-coated shells, or envelopes, for generate different shades and intensities of white light from a single UV light source. The interchangeability of the low-cost phosphor-coated envelopes permits the use of a single light engine, which is the more expensive component of a solid state lamp. In this manner, consumers are provided with a greater number of lighting choices at low cost than can be achieved using conventional single-envelope lamps.
Claims20
A solid state lamp assembly, comprising:
- an ultraviolet (UV) light source;
- a housing in which the UV light source is positioned;
- a plurality of removable and interchangeable phosphor-coated envelopes, each of which comprises a coupling for removably coupling to the housing;
- wherein each envelope is coated with a different phosphor material that generates a different correlated color temperature (CCT) of white light when illuminated by the UV light source.
A low-cost variable output solid state lamp (SSL), comprising:
- an ultraviolet (UV) light engine coupled to an interior surface of a lamp housing;
- a plurality of envelopes that are interchangeable and removably attachable to the lamp housing opposite the light engine, each envelope comprising a different phosphor material;
- and
- at least one bayonet pin on the lamp housing that is received by a corresponding slot on an envelope when the envelope is coupled to the housing;
- each phosphor material emits a different correlated color temperature of white light when excited by UV light from the light engine.
A variable output solid state lighting apparatus, comprising:
- means for generating ultraviolet (UV) light;
- means for mounting the means for generating UV light;
- means for altering the UV light into one of a plurality of selectable white light correlated color temperatures, said means for altering including providing a plurality of interchangeable envelopes, wherein each envelope is coated with a different phosphor;
- and
- means for removably coupling the means for altering to the means for mounting.
Dependencies are inferred from the claim text.