Patent ID: 7586703

Claim:
Imager sequential illumination system comprising: a source emitting towards the imager a polychromatic light beam in a fixed wavelength range comprising at least three primary colors, a color wheel for scrolling colored segments comprising at least three transmissive or reflective fixed segments, the color wheel making it possible to scroll the fixed segments over the optical path of the polychromatic light beam so that they successively transmit and filter the polychromatic light beam in the case where the fixed segments are transmissive, or so that they successively reflect and filter the polychromatic light beam in the case where the fixed segments are reflective, the fixed segments being of different colors, and each fixed segment having a hue, a saturation, a transmissivity or a reflectivity, and a size that is suitable for obtaining a colored beam exhibiting a primary color with a reference hue when this fixed segment is scrolled over the optical path of the polychromatic light beam, wherein the fixed colored segments are distributed in the color wheel in an order such that differences of energies between any two successive colored beams that follow one another, when the fixed segments of the colored wheel scroll over the optical path of the polychromatic light beam, are the least variable possible compared to other possible orders, the energies being defined as perceived by the visual system of a standard observer.