Troffer luminaire system having total internal reflection lens
First Claim
Patent Images
1. A lighting system comprising:
- a lighting strip including a plurality of light sources;
a first lens and a second lens each being in optical communication with the plurality of light sources such that substantially all of the light emitted by the plurality of light sources is transmitted through the first and second lenses;
wherein the first and second lenses are disposed adjacent to the lighting strip at a position characterized by (i) a top of the first lens and a top of the second lens not touching one another and by (ii) the top of the first lens and the top of the second lens each having a distance of separation relative to the lighting strip; and
wherein the top of the first lens and the top of the second lens are disposed less than about 0.5 inch apart.
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Abstract
A troffer luminaire that includes a plurality of solid state lighting devices, and a first lens and a second lens having total internal reflection (TIR) to collect light from the lighting devices and produce a light output with good luminance uniformity; and to control the distribution profile of the light output through the first lens and the second lens as desired for particular lighting applications.
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Citations
14 Claims
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1. A lighting system comprising:
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a lighting strip including a plurality of light sources; a first lens and a second lens each being in optical communication with the plurality of light sources such that substantially all of the light emitted by the plurality of light sources is transmitted through the first and second lenses; wherein the first and second lenses are disposed adjacent to the lighting strip at a position characterized by (i) a top of the first lens and a top of the second lens not touching one another and by (ii) the top of the first lens and the top of the second lens each having a distance of separation relative to the lighting strip; and wherein the top of the first lens and the top of the second lens are disposed less than about 0.5 inch apart. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A troffer luminaire system, comprising:
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a plurality of light emitting diodes; and a first lens and a second, each being in optical communication with the plurality of light emitting diodes, wherein the first lens and the second lens are disposed adjacent to the plurality of light emitting diodes in a position providing total internal reflection such that substantially all of the light emitted by the plurality of light emitting diodes is transmitted through the first and second lenses; wherein the position is characterized by (i) a top of the first lens and a top of the second lens not touching one another and by (ii) the top of the first lens and the top of the second lens each having a distance of separation from the plurality of light emitting diodes; and wherein the top of the first lens and the top of the second lens are disposed less than about 0.5 inch apart. - View Dependent Claims (9, 10, 11)
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12. A lighting method, comprising:
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mounting a linear array of light sources in a fixture housing for emitting light; disposing a first lens and a second lens operatively coupled to at least one light source of the light sources and being semi-cylindrical and having total internal reflection in optical communication with the light sources such that substantially all of the light emitted by the light sources is transmitted through the first lens and the second lens and onto an item or area to be illuminated; and adjusting a position of the first lens and the second lens to direct transmission of light to be reflected internally, and change the distribution of light output by the first lens and the second lens. - View Dependent Claims (13, 14)
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Specification