Abstract: Disclosed herein is a spectral measurement device for measuring optical radiation provided by at least one measurement object in at least one classification based spectral measurement. The spectral measurement device includes: at least one radiation source configured for emitting optical radiation at least partially towards the measurement object; at least two photodetectors, wherein each photodetector includes at least one pixel; at least one read-out device configured for measuring the photodetector signals and generating at least one item of spectral data; and at least one evaluation device comprising at least one processor and at least one memory storage. The evaluation device is configured for generating at least one item of measurement information by applying the classification model and the transfer function to the item of spectral data.

Abstract: The present invention refers to a device (112) for monitoring an emission temperature of at least one radiation emitting element (114), a heating system (110) for heating at the least one radiation emitting element (114) to emit thermal radiation at an emission temperature, a method for monitoring an emission temperature of at least one radiation emitting element (114) and method for heating the at least one radiation emitting element (114) to emit thermal radiation at an emission temperature.

Abstract: A device is disclosed. The device includes a. at least one radiation emitting element configured for emitting a modulated thermal radiation as a result of its temperature; where the radiation emitting element includes at least one incandescent lamp; and b. at least one electronic circuit configured for applying a periodic time-dependent voltage to the radiation emitting element, wherein where the electronic circuit is configured for controlling one or more of an amplitude, a duty cycle and a frequency of the periodic time-dependent voltage, where a temperature of the radiation emitting element and a frequency of the modulated thermal radiation depend on the applied periodic time-dependent voltage controlled by the electronic circuit.

Abstract: Described herein is a spectral sensing device that includes at least one photosensitive detector, where the at least one photosensitive detector has at least one photosensitive region designated for receiving optical radiation, where at least one detector signal as generated by the at least one photosensitive detector is dependent on an illumination of the at least one photosensitive region; at least one radiation emitting element; at least one optical element; and at least one evaluation unit, where the at least one evaluation unit is configured to perform a calibration of the spectral sensing device by using at least one first detector signal as generated by the at least one photosensitive detector upon the illumination of the at least one photosensitive region by a first portion of the optical radiation. Also described herein is a method for measuring optical radiation with a spectral sensing device.