Method and apparatus for producing calibrated spectral imaging devices

Calibrating a spectral imaging device includes providing first calibration light, with first calibration spectrum (IMPBF), coupling the first calibration light to the device, obtaining a first measured profile of the first calibration light by recording first detector pixel signals during scanning a control parameter of a Fabry-Perot interferometer of the device, obtaining a second measured profile of the first calibration light by recording second detector pixel signals during scanning, determining a first simulated profile from the first calibration spectrum using previously measured spectral quantum efficiency of first detector pixels, previously measured spectral transmittance function, and first calibration data, determining a second simulated profile from the first calibration spectrum using previously measured spectral quantum efficiency of second detector pixels, previously measured spectral transmittance function, and the first calibration data, and modifying first calibration data until simulated profiles match with corresponding measured profiles.

Patent family as of 17.7.2026
CN119072613 A, EP4511622 A1, EP4511622 B1, EP4511622 C0, FI131177 B, FI20225335 A, US12674705 BB, US2025271301 AA, WO23203280 A1