Steven J. Sasson (born July 4, 1950) is an American electrical engineer and the inventor of the self-contained (portable) digital camera. He joined Kodak shortly after his graduation from engineering school and retired from Kodak in 2009.[1]
Early life and education
Sasson was born in Brooklyn, New York, the son of Ragnhild Tomine (Endresen) and John Vincent Sasson. His mother was Norwegian.[2]
Steven Sasson developed a portable, battery operated, self-contained digital camera at Kodak in 1975.[4] It weighed 8 pounds (3.6 kg) and used a Fairchild CCD image sensor having only 100 × 100 pixels (0.01 megapixels). The images were digitally recorded onto a cassette tape, a process that took twenty-three seconds per image. His camera took images in black and white. As he set out on his design project, he envisioned a camera without mechanical moving parts (although his device did have moving parts, such as the tape drive).[5]
In 1977, Kodak filed a patent application on some features of Sasson's prototype camera. Titled "electronic still camera", the patent listed Sasson and Gareth Lloyd as co-inventors. The issued patent, U.S. patent number 4,131,919,[6] claims an arrangement that allows the CCD to be read out quickly ("in real time") into a temporary buffer of random-access memory and then written to storage at the lower speed of the storage device. Most modern digital cameras still use such an arrangement, which had been described in an earlier MIT patent[7] that employed a vidicon sensor rather than a CCD.
His prototype was not the first camera that produced digital images, but it was the first hand-held digital camera.[4] Earlier examples of digital cameras included the Multi Spectral Scanner on Landsat 1;[8] which took digital photographs of Yosemite before it was launched in 1972; cameras used for astronomical photography;[9] experimental devices by Michael Francis Tompsettet al.; and the commercial product and hobbyist camera called the Cromemco Cyclops.[citation needed]
Life and career
His work on digital cameras began in 1975 with a broad assignment from his supervisor at Eastman Kodak Company, Gareth A. Lloyd: to attempt to build an electronic camera using a commercially available charge-coupled device (CCD).[10] The resulting camera invention was awarded the U.S. patent number 4,131,919.[6]
Sasson retired from Eastman Kodak Company in 2009 and began working as a consultant in an intellectual property protection role.[10] Sasson joined the University of South Florida Institute for Advanced Discovery & Innovation in 2018, where he is a member and courtesy professor.[11]
^"Sydvesten: LOKAL- OG SLEKTSHISTORISK MAGASIN FOR ROGALAND" [Southwesterly: LOCAL AND BREAK HISTORICAL MAGAZINE FOR ROGALAND] (PDF). Rogaland-historie.no. 2008. p. 11. Archived from the original(PDF) on 2016-03-03. Retrieved 2015-08-12. Stevens morfar, Kristoffer (Chris) Endresen utvandret i 1921 fra Skudeneshavn til Brooklyn, der han slo seg ned somfisker. [Steven's grandfather, Kristoffer (Chris) Endresen, emigrated in 1921 from Skudenes Harbor to Brooklyn.]