Later Use
For the first nine months of NTSC color in 1953–1954, CBS continued to use its field-sequential color television cameras, with the field rate and signal adapted for NTSC standards, until RCA delivered its first production model of an NTSC color camera in time for the 1954–55 season.
The Soviet Union was the only other country to experiment with a field-sequential color system. It manufactured a small number of color receivers in 1954 that used a mechanical color disc.
The field sequential system was used in specialized applications long after it had been replaced for broadcast television. A notable example was the Apollo lunar landing cameras which transmitted color television images from the Moon during missions from 1969 to 1972. Another system was used in NASA's Voyager program in 1979, to take pictures and video of Jupiter.
Modern day Digital Light Processing (DLP) projectors commonly use color wheels to generate color images, typically running at a multiple of the video frame rate.
Read more about this topic: Field-sequential Color System
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