field-sequential color TV
Noun: A type of early color television technology where the complete picture (a frame) is created by displaying a rapid sequence of three separate monochrome images, each filtered through a different primary color (red, green, and blue). The viewer's perception blends these successive fields into a single full-color image.
This term is a compound noun used specifically to name a historical television system. It is typically used in technical, historical, or descriptive contexts. * The museum's exhibit on broadcast history featured a working field-sequential color TV. * Before compatible color systems were invented, field-sequential color TV was one of the first methods demonstrated.
The technology is often discussed in contrast to "simultaneous" or "dot-sequential" color systems (like the NTSC standard that succeeded it), which transmit color information concurrently. * The main drawback of the field-sequential system was its incompatibility with existing black-and-white broadcasts.
- Field-sequential system: A more general term for the technological method.
- CBS Color System: The specific field-sequential system developed by the Columbia Broadcasting System in the 1940s and 1950s.
- Color wheel: The rotating mechanical filter with red, green, and blue segments used in front of a monochrome picture tube in many field-sequential TV receivers.
- Sequential color television
- Mechanical color TV (referring to common implementations using a color wheel)
- Primary colors: The set of colors (red, green, blue) used to create all other colors in the system.
- Field: One of the two interlaced halves (containing every other scan line) that make up a complete television frame. In this system, each field was a different color.
- Compatibility: A major challenge for this system, as its signal could not be displayed properly on standard black-and-white television sets.
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an early form of color TV in which successive fields are scanned in three primary colors
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