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Lens for preferential-side distribution

  • US 10,408,429 B2
  • Filed: 05/07/2012
  • Issued: 09/10/2019
  • Est. Priority Date: 02/29/2012
  • Status: Active Grant
First Claim
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1. A lens for distribution of light from a light emitter having an axis, the lens comprising a light-distribution wall having a base, a light-receiving inner surface and an outward surface, the light-distribution wall being configured for internal redirection of light entering the wall through the inner surface toward the outward surface for total internal reflection therefrom toward a main light-output surface which is transverse the axis, the base being bordered by inward and outward closed-perimeter edges each comprising at least four substantially straight edge portions joined by concave edge portions, the light-receiving inner surface defining an emitter cavity and extending from the base inward edge forming a closed-perimeter opening into the emitter cavity, the outward surface extending from the base outward edge toward the main light-output surface.

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