System and method for a six-primary wide gamut color system
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Publication Number
US-12361852-B2
Publication Date
2025-07-15
Expiration Date
Abstract
Systems and methods for a six-primary color system for display. A six-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. The six-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.
Core Innovation
The invention relates to a system for acquiring a multi-primary color system in which a camera imager system includes a plurality of sensors, at least one glass prism, at least four filters, and at least one lens. The camera imager system includes a Red (R) imager, a Green (G) imager, a Blue (B) imager, and a Cyan (C) imager, and the at least four filters include an R trim filter, a G trim filter, a B trim filter, and a C trim filter.
Three of the at least four filters each pass approximately one-third of a visible light spectrum to create R, G, B, and C primary color values. The camera imager system captures a set of camera signal data and distributes the set of camera signal data to the plurality of sensors with equal time delay, thereby creating a set of image data.
The optical architecture uses glass prism structures that may include dichroic prism and/or trichroic prism, and includes additional optical components such as a beam splitter cross prism in some embodiments. The plurality of glass prisms is arranged into at least three flats in some arrangements, and trim filters are mounted in front of sensors to support acquisition of the multi-primary image data.
Claims Coverage
The provided independent claims present three inventive features centered on acquiring multi-primary color system image data with glass prism and filter optics and equal time-delay distribution to multiple sensors.
Camera imager system for multi-primary acquisition with equal time delay
A camera imager system that includes a plurality of sensors, at least one glass prism, at least four filters, and at least one lens, with Red (R), Green (G), Blue (B), and Cyan (C) imagers, operable to capture a set of camera signal data and distribute the set of camera signal data to the plurality of sensors with equal time delay, thereby creating a set of image data including R, G, B, and C primary color values.
Glass prism arrangement into flats with R/G/B/C trim filters
A camera imager system with a plurality of sensors, a plurality of glass prisms arranged into at least three flats, at least four filters, and at least one lens, including Red (R), Green (G), Blue (B), and Cyan (C) imagers; the at least four filters include an R trim filter, a G trim filter, a B trim filter, and a C trim filter; three of the at least four filters each pass approximately one-third of a visible light spectrum; and the camera imager system captures a set of camera signal data and distributes the set of camera signal data to the plurality of sensors with equal time delay to create image data including R, G, B, and C primary color values.
Prism/filter architecture with beam splitter cross prism and trim filters
A camera imager system including a plurality of sensors, a plurality of glass prisms, a beam splitter cross prism, at least four filters, and at least one lens, including Red (R), Green (G), Blue (B), and Cyan (C) imagers; the at least four filters include an R trim filter, a G trim filter, a B trim filter, and a C trim filter; three of the at least four filters each pass approximately one-third of a visible light spectrum; and the camera imager system captures a set of camera signal data and distributes the set of camera signal data to the plurality of sensors with equal time delay, thereby creating a set of image data including R, G, B, and C primary color values.
The claims collectively cover multi-primary color acquisition using R, G, B, and C imagers, glass prism and trim filter arrangements, and distribution of camera signal data to multiple sensors with equal time delay.
Stated Advantages
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