Optical sensors - Color sensors
The function of the color sensors is based on the evaluation of the red, green and blue components of the light reflected back from measured objects or the radiation emitted by "self-luminaires" (e.g. LEDs, rear lights of cars, halogen lamps, fluorescent lamps, etc.). For this purpose, a so-called triple receiver is integrated into the device along with a white light or UV illumination that can be switched on/off. This receiver works according to the true color principle. This means that the evaluation of the light impinging on the receiver is based on the color perception of the human eye. This is the prerequisite for the reliable differentiation of objects or self-illuminators according to their color and brightness. The testing of fluorescent materials requires the use of sensors with a UV light source. Use under adverse environmental conditions is possible through the use of an additional fiber optic cable. The interaction between precise detection and a high switching frequency characterizes the devices. This makes them an ideal tool for process control and quality assurance.
