Components of Opto-Electronics: Semi conductor materials: Elemental semiconductors -Silicon, Germanium Binary semiconductors -Aluminium, gallium, indium, phosphorus, arsenic, antimony Ternary semiconductors -Aluminum, Gallium, Arsenic Quaternary Semiconductors -Indium, Gallium, Phosphorous, Arsenic Why Opto-electronics sensor system used: The sensors used in an automotive environment must be reliable Produce exactingly accurate results Require little maintenance Help reduce overall system cost and extend the life of the system or sub system unit Integrated optoelectronic sensors are non-contact sensors, that is, they are able to perform their sensing or measurement functions without the need for physical contact with other parts of the system or sub-system Advantages: Reducing the number of required components Improving the reliability of the system or sub-system Improving the styling, aesthetics and ergonomics of the overall vehicle through better utilization of the available space Improving the manufacturability of the vehicle by reducing the number of sensors that need to be positioned during production Disadvantages: They are not giving any direct feedback
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