Semiconductor lamp

摘要

A lamp for general lighting applications utilizes solid state light emitters and provides light output that may approximate light emissions from of an incandescent lamp. An exemplary lamp includes a bulb and a pedestal extending into the bulb that supports the light emitters in orientations such that emissions from the emitters through the bulb approximate emissions from a filament of an incandescent lamp. An inner member around the emitters and the pedestal provides further light processing, e.g. diffusing and/or phosphor luminescence. The lamp conforms to form factors and/or uses lamp base connectors of common incandescent lamps and/or compact fluorescent lamps. For efficient substitution of components during manufacture of lamps to different specifications, at least some examples use modular couplings for the parts of the lamp to the heat sink or other housing, such as for couplings of the lamp base, the bulb and the inner light processing member (if provided).

主权项

1. A light engine for a lamp, comprising:
a heat sink having:
(a) a first modular-coupling for attachment of a lighting industry standard lamp base, the first modular-coupling being configured for compatibility with each of a plurality of different lighting industry standard lamp bases each configured to connect the lamp to and provide electrical contact of the lamp with a corresponding lamp socket, and(b) a second modular-coupling for attachment of one of a plurality of different types of bulbs; a pedestal attached to and extending from the heat sink along a longitudinal axis of the light engine into a region to be surrounded by a bulb when the bulb is attached to the heat sink, the pedestal providing heat conductivity to and being supported by the heat sink; and a plurality of solid state light emitters configured to emit light, an end portion of the pedestal to be surrounded by the bulb having: at least three substantially flat surfaces facing outward from the longitudinal axis of the lamp in different directions each supporting one or more of the solid state light emitters for emission of light in a different orientation, and an end face facing at least substantially along the longitudinal axis of the lamp supporting one or more of the solid state light emitters for emission of light on or about the longitudinal axis of the lamp, such that emissions outward from the pedestal from the solid state light emitters through the bulb when the bulb is attached to the heat sink approximate light source emissions from a filament of an incandescent lamp.