Spectrometer and method for adjusting a filter array

A spectrometer for recording a spectrum, comprising:

• a semiconductor chip arranged on a front side of the spectrometer,
• having a sensor array,
• which is arranged on a rear side of the semiconductor chip,
• which comprises a matrix arrangement of at least two sensor pixels,
• wherein the sensor pixels are designed for detecting electromagnetic radiation,
• wherein the sensor array is designed for rear-side illumination,
• a filter array for filtering the radiation depending on the wavelength,
• wherein the filter array comprises a matrix arrangement of at least two filter pixels,
• wherein each filter pixel for the purpose of filtering forms a Fabry-Perot interferometer, and
• wherein the filter array is arranged toward a rear side of the sensor array;
• and
• a device for identifying sensor pixels covered by the filter array, having a nonvolatile memory, in which coordinates of the filter array in relation to the sensor array and/or coordinate transformation of the filter array in relation to the sensor array are/is stored in order to assign the sensor pixels to individual filter pixels on a basis of the stored coordinates and/or the coordinate transformation and/or in order to activate the individual filter pixels depending on which of the sensor pixels are covered by corresponding filter pixels, wherein the device for identifying the sensor pixels covered by the filter array is designed to deactivate, on the basis of the stored coordinates and/or the coordinate transformation, the sensor pixels which are situated in the coverage in each case at an edge of the individual filter pixels, and to form a perforated grid diaphragm such that filtered light of different filter pixels does not jointly influence one of the sensor pixels.