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:
Dec. 01, 2020

Filed:

Jun. 23, 2017
Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Steven T. Awiszus, Woodbury, MN (US);

Kiran S. Kanukurthy, Cottage Grove, MN (US);

Eric C. Lobner, Woodbury, MN (US);

Robert J. Quintero, St. Paul, MN (US);

Micayla A. Johnson, Farmington, MN (US);

Caroline M. Ylitalo, Stillwater, MN (US);

Britton G. Billingsley, St. Paul, MN (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F 9/06 (2006.01); G02F 1/133 (2006.01);
U.S. Cl.
CPC ...
A61F 9/067 (2013.01); A61F 9/068 (2013.01); G02F 1/13318 (2013.01);
Abstract

A system () comprising a head-mounted device (); at least one position sensor coupled to the head-mounted device; at least one light-filtering shield () coupled to the at least one position sensor; at least one light detector (); and at least one computing device () configured to receive, from the light detector, an indication that an intensity of light detected by the light detector exceeds an exposure threshold; determine, from the at least one position sensor, that the light-filtering shield is not positioned at the face of a worker to filter light with the intensity that exceeds the exposure threshold; and generate, in response to the determination that the light-filtering shield is not positioned at the face of a worker wearing the head-mounted device to filter light with the intensity that exceeds the exposure threshold, an indication for output.


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