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US 12,748,252 B2Granted
LED luminaire with light guide and optical element
AssigneeQuarkstar LLC
InventorEric Bretschneider
Life of this patent
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Abstract
A luminaire includes a light source having a plurality of light emitting diodes (LEDs); a light guide having a first edge for receiving light from the LEDs, and a second edge opposite the first edge for outputting guided light according to a first far-field light distribution; an optical element spaced from the light guide and arranged to output light from a luminous surface according to a second far-field light distribution. The luminous surface has an area larger than an area of the second edge of the light guide, and the first and the second far-field light distributions at least in part overlap.
Claims22
A luminaire comprising:
- a plurality of light emitting diodes (LEDs);
- a light guide comprising a first edge and a second edge opposite the first edge, the light guide being arranged to receive light from the plurality of LEDs at the first edge during operation of the luminaire and guide the light to the second edge, and output the light at the second edge according to a first far-field light distribution;
- and
- an optical element spaced from the light guide, the optical element being arranged to output light at a luminous surface according to a second far-field light distribution,
- wherein the luminous surface has an area larger than an area of the second edge of the light guide and the first and the second far-field light distributions at least in part overlap.
2 more elements
Dependencies are inferred from the claim text.