Position sensitive photodetectors with high linearity

A highly linear position sensitive photodetector (PSD) has been developed to be used in a new measuring system (SELSPOT) for high accuracy non-contacting remote position monitoring of light sources (eg. LEDs). Due to the superior linearity (max non-linearity 0.1%) high sensitivity (0.6 A/W) and extremely high resolution (better than one part in 50 000) the detector opens up new areas of applications in the field of high accuracy measurements.