My dad devised the "Bayer filter" used in digital cameras, in the 1970's in the Kodak Park Research Labs. It is hard to convey now exactly how remote and speculative the idea of a digital camera was then. The HP-35 calculator was the cutting edge, very expensive consumer electronics of the day; the idea of an iPhone was science fiction. Simply put, my dad was playing.

This was the decade that the Hunt brothers were cornering the silver market. Kodak's practical interest in digital methods was to use less silver while keeping customers happy. The idea was for Kodak to insert a digital step before printing enlargements, to reduce the inevitable grain that came with using less silver. Black and white digital prints were scattered about our home, often involving the challenging textural details of bathing beauties on rugs.