LIGHT ASSEMBLY
7 Assignments
0 Petitions
Accused Products
Abstract
A light assembly is disclosed which can include an LED array and a reflector. The LED array can include a plurality of LEDs which are disposed such that each LED is substantially aligned to define a focal axis. Each LED can emit light substantially along an optical output axis, with each optical output axis being perpendicular to the focal axis. The optical output axis of the LED array can be disposed in intersecting relationship with the reflector surface. The reflector can be defined by a curve section defined with respect to a principal axis. The principal axis and the output axis of the LED array can be in non-parallel relationship with each other. The optical output axis of the LED array can be substantially perpendicular to the principal axis of the curve section of the reflector.
26 Citations
26 Claims
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1. (canceled)
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2. A light assembly for directing light comprising:
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one or more light emitting diodes (LEDs), each having an optical output axis; a reflector comprising a composite of parabolic curve sections, each having a principle axis that is substantially perpendicular to the optical output axis of each of the one or more LEDs so as to redirect light from each of the LEDs along a direction substantially in common with a common direction of the principal axes; and end potions of the reflector flanking the composite of parabolic curve sections and cooperating with the composite of parabolic curve sections to provide a substantially unidirectional spatial pattern of light emanating from the one or more LEDs. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A process for making a light assembly for re-directing light generated by one or more light emitting diodes (LEDs) into a desired spatial distribution of unidirectional light, the process comprising:
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(a) creating a reflective surface for reflecting light from the one or more LEDs for directing light reflected by the reflective surface into a spatial distribution of unidirectional light, where the reflective surface includes a body portion defined by more than one geometric function flanked by reflective ends; (b) comparing the spatial distribution to the desired spatial distribution of unidirectional light; (c) adjusting one or more of the size and shape of one or more of the geometric surfaces to change the spatial distribution of the unidirectional light; and (d) repeating (b) and (c) until the spatial distribution of the unidirectional light substantially meets or exceeds a specification for the desired spatial distribution. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A light assembly for directing light comprising:
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one or more light emitting diodes (LEDs), each emitting light along an output axis; a reflector having a body portion extending linearly between first and second ends for reflecting light emanating from the one or more LEDs into a substantially unidirectional beam whose direction is substantially across to the output axis of the one or more LEDs; the body portion of the reflector including two or more sections of different reflective geometries that cooperate in forming the unidirectional beam; and each of the first and second ends of the reflector having a reflective geometry that contributes light from each of the one or more LEDs to the unidirectional beam such that the beam has a spatial distribution that meets or exceeds a targeted standard for emergency lighting. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification