Optical sensors convert optical input signals, from the ultraviolet to the infrared range, into electrical signals for further inference of physical variables. The systems feature radiation sources (e.g. LEDs) and receivers (e.g. single photodiodes, pixel line and matrix detectors).
Improved miniaturization and cost-effective production of the assemblies is achieved by the use of parallelized manufacturing methods at wafer level (comparable with microelectronic processes) and the use of microoptical beam shaping principles.