Russell A. Kirsch

Russell A. Kirsch (June 20, 1929August 11, 2020) was an American engineer and computer scientist. He worked at the National Bureau of Standards (now known as the National Institute of Standards and Technology). He was known as the inventor of the pixel. He also developed the first digital image scanner.
Kirsch died on August 11, 2020 at his home in Portland, Oregon from Alzheimer's disease-related problems, aged 91.