Steve Mann, PhD (MIT '97), P.Eng. (Ontario),

Invented wearable computing in his childhood, brought this invention to MIT to found the MIT wearable computing project, and "persisted in his vision and ended up founding a new discipline." -- Nicholas Negroponte, MIT Media Lab Director, 1997 (link).

Invented, designed, and built the world's first smartwatch in 1998 (patent filed 1999, featured on cover of Linux Journal July 2000) which he presented at IEEE ISSCC 2000 where he was named "The father of the wearable computer".

Inventor of HDR (High Dynamic Range) imaging, used in more than 2 billion smartphones. ("The first report of digitally combining multiple pictures of the same scene to improve dynamic range appears to be Mann 1993" -- Robertson etal, JEI 12(2).)

Founded companies with valuation in excess of $1 billion, together with students. (See

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