On a diode array are some photodiodes on a chip appropriate.
In addition, a readout circuit and an interface to this item in other circuits to integrate housing.
There are differences in the used semiconductor materials. These vary for different wavelengths present.

Application:
Diode arrays are used in spectrometers, which are able to measure colors. You can with them the entire visible wavelength range, as well as UV light and near infrared range.
Spectrometers are Optical Multichannel Analyzer or multi-channel spectrometer.
Other applications are Barcodelesegeräten, equipment for distance measurement, torque sensors and analytical technique in the laboratory.


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