Keyence Corp. of America has unveiled the CZ-V20 series sensors, which integrate illumination optics and receiver circuitry to improve both detection and stability. The sensors use three high-intensity RGB LED light sources. A fiber optic cable transmits the RGB light through an optical system in the sensor head to produce a uniform beam spot. The devices have modes to detect dark targets and to differentiate slight color changes. Detection performance is largely unaffected by shape, position, angle or surface luster.