DreikammerCRTSysteme

The DreikammerCRTSysteme, German for "three-chamber CRT systems," denotes a family of cathode-ray tube devices that arrange three separate vacuum chambers within a single housing to form a multi-channel display or imaging system. Each chamber contains its own electron source and focusing elements and projects an image onto a shared screen or aligned phosphor mosaic.

The three chambers are synchronized by common high-voltage and timing circuitry, enabling tri-channel color rendering or independent imaging channels. The arrangement allows improved color purity, brightness, and redundancy, with reduced cross-talk through spatial separation and independent deflection paths. The device may use either separate phosphor layers or a segmented phosphor screen.

The concept has primarily appeared in theoretical discussions and niche experimental deployments, notably in professional video, scientific instrumentation, or art installations. In practice, manufacturing complexity and cost limited widespread adoption, giving way to conventional single-envelope tri-gun CRTs and flat-panel displays. Some designs influenced later multi-tube assemblies in experimental televisual equipment during the late 20th century.

Related concepts include tri-gun CRTs and multi-tube projection systems. The Dreikammer approach is distinguished by the tri-chamber envelope and independent vacuum systems. There is no standard commercial specification, and implementations vary by manufacturer.