3m Innovative Properties Company

Milo G Oien-Rochat

Steven T Awiszus

Kiran S Kanukurthy

James E Nash

Benjamin A Johnson

Marc A Egeland

Charles P Jents

Neeraj Sharma

Eric C Lobner

Micayla A Johnson

Robert J Quintero

In some examples, a system includes a head-mounted device, a visor that includes a reflective object that is substantially transparent in a visible light spectrum and embodied at a physical surface of the visor, at least one visor attachment assembly that couples the visor to the head-mounted device; at least one optical sensor; and at least one computing device communicatively coupled to the at least one optical sensor, the at least one computing device comprising a memory and one or more computer processors that: receive, from the optical sensor, an indication of light outside of a visible light spectrum that is reflected from the reflective object; determine, based at least in part on the light outside of a visible light spectrum that is reflected from the reflective object, a position of the visor; and perform, based at least in part on the position of the visor, at least one operation.

Pixel optical sensing of visibly transparent object utilizing reflective materials for personal protective equipment

The present disclosure includes a retrofit sensor module for use with a protective head top with a helmet and a visor. The sensor module includes a sensor housing and an attachment mechanism. The sensor housing encloses a head presence sensor to sense when the protective head top is being worn. The sensor housing also encloses a position sensor to sense the position of the visor relative to the helmet. The retrofit sensor module further comprises an attachment mechanism secured to the housing. The attachment mechanism mates with a first hinge component of a hinge assembly in the protective head top to removably install the sensor module into the protective head top, wherein the hinge assembly allows the visor to move relative to the helmet.

Sensor module for a protective head top

Personal protective equipment system with sensor module for a protective head top

Retrofit sensor module for a protective head top

Growing community of inventors

Minneapolis, MN, United States of America

Milo G Oien-Rochat