LED-based changeable color light lamp
First Claim
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1. 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.
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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.
44 Citations
20 Claims
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1. A solid state lamp assembly, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A low-cost variable output solid state lamp (SSL), comprising:
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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. - View Dependent Claims (17, 18)
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19. A variable output solid state lighting apparatus, comprising:
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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. - View Dependent Claims (20)
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Specification