公开(公告)号：WO2023041566A1

公开(公告)日：2023-03-23

申请号：PCT/EP2022/075497

申请日：2022-09-14

Applicant: TRINAMIX GMBH

Inventor： WINKLER, Sebastian Stephan ,  ZIMMERMANN, Henning ,  HORSAK, Andre ,  LOVRINCIC, Robert ,  SCHMIDT, Felix ,  SCHINDLER, Patrick

IPC: G01J3/12 ,  G01J3/28

Abstract: A method for calibrating a spectrometer device (112) is disclosed. The method comprises the following steps: a) illuminating at least one detector device (118) of the spectrometer device (112) with at least one broadband light source (114) through at least one narrow band pass filter (116), specifically through a plurality of narrow band pass filters (116), having a plurality of pre¬ determined transmission bands; b) generating, by using the detector device (118), a plurality of detector signals (170) de¬ pending on the illumination of step a), wherein the detector device (118) comprises at least one optical element (120) configured for separating incident light into a spectrum of constituent wavelength components and further comprising a plurality of photosensitive elements (122), wherein each photosensitive element is configured for receiving at least a portion of one of the constituent wavelength components and for generating a respective detector signal depending on the illumination of the respective photosensitive element by the at least one portion of the respective constituent wavelength component; c) determining at least one item of wavelength calibration information, wherein the item of wavelength calibration information comprises at least one assignment assigning wavelengths, specifically wavelength bands, of incident light to corresponding photosensitive elements being responsive to these wavelengths, specifically assigning at least one of the photosensitive elements to each of the predetermined transmission bands, more specifically assigning one or more of pixel positions (174) and/or identification numbers of the photosensitive elements to the respective predetermined transmission bands, specifically to each of the predetermined transmission bands; and d) determining at least one item of stray light calibration information based on the plurality of detector signals (170), wherein the item of stray light calibration information comprises at least one signal distribution function, specifically at least one signal distribution matrix, the signal distribution function describing a distribution of responses of the photosensitive elements to incident light having a specific wavelength. Further, a system (110) for calibrating a spectrometer device (112), a computer program and a computer-readable storage medium are disclosed.