Micro-optical element having surface with curvature about a direction extending in a plane parallel to major surface of light guide, and light guide and lighting assembly including same
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Sep 30, 2015
filing date -
Sep 30, 2014
priority date (Note) -
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Abstract
A light guide includes a first major surface; a second major surface opposed the first major surface and spaced apart from the first major surface in a thickness direction; a light input edge extending between the major surfaces; and light extracting elements at the first major surface. In some embodiments, at least a portion of the light extracting elements each include: a proximal end at the first major surface and a distal end in the thickness direction; and first and second surfaces, the first surface being a side surface extending between the proximal end and the distal end and having a curvature about a direction extending in a plane parallel to the first major surface. In some embodiments, the major surface of the light guide is curved and the first surface has a curvature about a direction extending along a surface contour of the first major surface.
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