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:
Feb. 26, 2019

Filed:

May. 05, 2017
Applicant:

Flex Lighting Ii Llc, Chicago, IL (US);

Inventors:

Anthony John Nichol, Chicago, IL (US);

Zane Arthur Coleman, Elmhurst, IL (US);

Assignee:

FLEx Lighting II, LLC, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/04 (2006.01); F21V 8/00 (2006.01); G09F 13/18 (2006.01); G02F 1/1335 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0036 (2013.01); G02B 6/006 (2013.01); G02B 6/0018 (2013.01); G02B 6/0028 (2013.01); G02B 6/0058 (2013.01); G02B 6/0065 (2013.01); G02B 6/0068 (2013.01); G02B 6/0076 (2013.01); G02B 6/0088 (2013.01); G02B 6/002 (2013.01); G02B 6/003 (2013.01); G02B 6/005 (2013.01); G02B 27/0101 (2013.01); G02F 2001/133616 (2013.01); G09F 13/18 (2013.01); Y10T 29/49826 (2015.01);
Abstract

A lightguide, formed from a film with a thickness not greater than 0.5 mm, includes an array of coupling lightguide strips with bounding edges, a light mixing region, and a light emitting region. The coupling lightguides are folded such that the bounding edges are stacked together, and a light source is positioned to emit light into the lightguide through the stacked bounding edges, to conduct light into the light mixing region and then into the light emitting region. At least a portion of the light mixing region of the lightguide is wrapped around the stack of coupling lightguides such that it surrounds the stack of coupling lightguides and/or is in contact with at least two sides of the stack of coupling lightguides. The light mixing region might include a cladding with a pressure sensitive adhesive material.


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