摘要:
A diffuser for a lighting device comprises a diffuser region, a hook element and a nose element. A light fixture comprises a housing with an opening and a diffuser as described above, in which the nose element extends through the opening, optionally further comprising an accessory including at least one spring element engaging the hook element. A light fixture structure comprises a housing defining an opening and an first attachment element comprising a nose element, a hook element and a connection region, and optionally further comprising a diffuser engaging a first portion of the hook element, and/or an accessory which engages a second portion of the hook element. An eyeball accessory comprises first and second housing elements pivotably attached to each other. An accessory for a light fixture comprises a housing member and a spring element engageable with a fixture.
摘要:
A lighting device including a plurality of electrically activated emitters having different peak wavelengths, at least one remote lumiphor arranged to receive at least some emissions from one of the emitters, and a primary electrically activated emitter spatially segregated and/or thermally insulated from a secondary electrically activated emitter. A lighting device including a plurality of electrically activated emitters spatially segregated from one another having different peak wavelengths, at least one lumiphor spatially segregated from one of the emitters, and a control device independently connected to each emitter or group of emitters. A method of producing a lighting device including a plurality of independently controllable electrically activated emitters.
摘要:
Solid state light sources, lighting devices and lamps arranged to provide emission with a warm temperature and high CRI. One embodiment of a solid state lighting device according to the present invention comprises a light emitting diode (LED) device capable of emitting light in an emission spectrum. A filter arranged so that at least some light from the LED light source passes through it, with the filter filtering at least some of one or more portions of the light source emission spectrum. The resulting light source light has a different temperature but substantially the same CRI after passing through the filter.
摘要:
A lighting fixture comprises a mounting assembly and two rails. At least one of the rails is slidable relative to the mounting assembly. The rails are each extruded, and have profiles which are substantially similar to each other. Each rail has a male component which fits within a female component of the other. Also, a fixture comprising a mounting assembly comprising an opening through which a light engine housing can be inserted, and (1) a spring clip and/or (2) a clip engagement structure. Also, a fixture comprising a mounting assembly, a first set of rails, and a supplemental rail. The supplemental rail is slidable relative to the light emitting element mounting assembly. Also, a fixture comprising a mounting assembly, a set of rails, and an engagement element having a first portion being in contact with a first rail and a second portion in contact with the second rail.
摘要:
A lighting apparatus includes a string with a plurality of serially-connected light emitting device sets, each set comprising at least one light emitting device. The apparatus further includes at least one controllable bypass circuit configured to variably bypass current around at least one light emitting device of a set of the plurality of light emitting device sets responsive to a control input. The control input may include, for example, a temperature input, a string current sense input and/or an adjustment input. The control input may be varied, for example, to adjust a color point of the string.
摘要:
A solid state lighting device includes a device-scale stamped heatsink with a base portion and multiple segments or sidewalls projecting outward from the base portion, and dissipates all steady state thermal load of a solid state emitter to an ambient air environment. The heatsink is in thermal communication with one or more solid state emitters, and may define a cup-like cavity containing a reflector. At least a portion of each one sidewall portion or segment extends in a direction non-parallel to the base portion. A dielectric layer and at least one electrical trace may be deposited over a metallic sheet to form a composite sheet, and the composite sheet may be processed by stamping and/or progressive die shaping to form a heatsink with integral circuitry. At least some segments of a heatsink may be arranged to structurally support a lens and/or reflector associated with a solid state lighting device.
摘要:
An optical element, comprising a substrate and at least one optical film. The substrate is at least partially light-transmissive. The optical film comprises at least a first optical feature and is positioned on a contact surface of the substrate. Also, a lighting device comprising at least one solid state light emitter and such an optical element. Also, methods for making an optical element by molding (e.g., film insert molding), bonding or laminating.