LENS WITH TIR FOR OFF-AXIAL LIGHT DISTRIBUTION
First Claim
1. A lens for directing light from a light emitter in a preferential-side off-axial direction with respect to the emitter axis, comprising:
- an emitter-adjacent base end forming an opening;
an inner surface extending from the base end with (a) a surrounding lateral surface formed about the emitter axis and (b) an end surface configured to direct light toward the preferential side, the inner surface forming a void;
an output-end surface configured to direct light toward the preferential side; and
an outer lateral surface configured for TIR to direct light toward the output-end surface,whereby light from the emitter exits the output-end surface predominantly toward the preferential side.
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Accused Products
Abstract
A lens for directing light from a light emitter in a preferential-side off-axial direction with respect to the emitter axis. The lens includes an emitter-adjacent base end forming an opening, an inner surface extending from the base end and forming a void, an output-end surface configured to direct light toward the preferential side, and an outer lateral surface configured for TIR to direct light toward the output-end surface, whereby substantially all light from the emitter exits the output-surface predominantly toward the preferential side. Another aspect of this invention is a recessed lighting fixture utilizing the inventive lens.
120 Citations
11 Claims
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1. A lens for directing light from a light emitter in a preferential-side off-axial direction with respect to the emitter axis, comprising:
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an emitter-adjacent base end forming an opening; an inner surface extending from the base end with (a) a surrounding lateral surface formed about the emitter axis and (b) an end surface configured to direct light toward the preferential side, the inner surface forming a void; an output-end surface configured to direct light toward the preferential side; and an outer lateral surface configured for TIR to direct light toward the output-end surface, whereby light from the emitter exits the output-end surface predominantly toward the preferential side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification