A field-sequential color system (FSC) is a color television system in which the primary color information is transmitted in successive images and which relies on the human vision system to fuse the successive images into a color picture. One field-sequential system was developed in 1940 by Peter Goldmark for CBS, which was its sole user in commercial broadcasting. The Federal Communications Commission adopted it on October 11, 1950, as the standard for color television in the United States. Its regular broadcast debut was on June 25, 1951. However, a few months later, CBS ended color broadcasting on October 20, 1951. In March 1953, CBS withdrawn its color system as a standard, creating an opening for all-electronic color systems from other manufacturers.
In the late 1960s, NASA revived the Goldmark-CBS system to broadcast color video from Project Apollo Command Modules, using a camera developed by Westinghouse Electric Corporation. The Westinghouse color camera was adapted to eventually broadcast from the lunar surface itself. Starting with Apollo 10, in May 1969, sequential color TV cameras flew on all NASA human spaceflight missions until the late 1980s, when CCD-based cameras replaced them. After the turn of the 21st century, consumer Digital Light Processing (DLP) projectors use a single chip and produce color by the sequential color process, using a color wheel for both front and rear projectors.