The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 30, 2024

Filed:

Mar. 22, 2022
Applicant:

Brightview Technologies, Inc., Durham, VA (US);

Inventors:

Ken G. Purchase, Morrisville, NC (US);

Bing Shen, Cary, NC (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2018.01); G02B 5/02 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
F21V 5/005 (2013.01); G02B 5/0215 (2013.01); G02B 5/0231 (2013.01); G02B 5/0257 (2013.01); G02B 5/045 (2013.01); G02B 5/0278 (2013.01);
Abstract

A light transmissive structure includes a light transmissive substrate having first and second opposing faces, and an array of microprism elements on the first face. Each microprism element includes a first inclined surface disposed at a first inclined angle relative to the second face, and a second inclined surface disposed at a second inclined angle relative to the second face. The first inclined angle is less than the second inclined angle, and a peak angle between the first inclined surface and second inclined surface is in the range of about 70 degrees to about 100 degrees. The second inclined surface has a convex curvature when viewed from angles perpendicular thereto. The light transmissive structure is configured to receive light from a light source facing the first face in a first direction and redistribute light emerging from the second face in a second direction different from the first direction.


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