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.
Patent No.:
Date of Patent:
Nov. 21, 2017
Filed:
Oct. 16, 2013
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Bing Hao, Woodbury, MN (US);
David A. Ender, New Richmond, WI (US);
Michael E. Griffin, Maplewood, MN (US);
Kevin W. Anderson, St. Paul, MN (US);
Gina M. Buccellato, Eagan, MN (US);
Barry S. Carpenter, Oakdale, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); A42B 3/04 (2006.01); G02C 11/04 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
G02B 6/001 (2013.01); A42B 3/044 (2013.01); A42B 3/0446 (2013.01); G02B 6/0006 (2013.01); G02B 6/0036 (2013.01); G02C 11/04 (2013.01); F21Y 2115/10 (2016.08);
Abstract
Illumination articles are described. More specifically, illumination articles that include a wearable device configured for wearing on the head of a wearer, a lightguide and light sources for emitting light into the lightguide are described. The illumination articles allow for wearable devices that uniformly illuminate a working area at high brightness without providing excessive glare to observers.