Device for spectrometrically capturing light, comprising at least: - a filter for converting spectral information into spatial information, the filter being an optical component which can spatially separate spectral components of the light, and - an organic photodiode serving as a detector for converting the spatial information into transmittable electrical signals, wherein the filter and the organic photodiode form a single-piece monolith, the organic photodiode being integrally combined with the filter, wherein the filter comprises at least one spectrally resolving element in the form of at least one layer-like photonic crystal constituting the monolith, the filter being designed as a wavelength-dependent microresonator, the microresonator being designed as a dielectric mirror arrangement, at least consisting of - a first mirror layer arrangement with alternating high refractive index and low refractive index material layers, - a second mirror layer arrangement with alternating high refractive index and low refractive index material layers, and - a resonant layer located between the two mirror layer arrangements (2, 3), or wherein the microresonator consists of at least: - a first layer stack having a first predetermined refractive index, - a second layer stack having a second predetermined refractive index, the first refractive index and the second refractive index being different from each other, and - a resonant layer disposed between the two layer stacks (2, 3), wherein at least one layer (2, 3, 4) with wavelength-tuned, continuously increasing thickness D along a direction perpendicular to a direction along which the layers of the filter are stacked is formed, wherein the organic photodiode contacting the filter consists of at least the following detector layers - a photoactive layer, - a first electrode of the photoactive layer and - a second electrode of the photoactive layer, wherein the photoactive layer is located between the two electrodes (33, 32) and at least one of the electrodes (33, 32) is structured along the direction in which the thickness D continuously increases, characterised in that the detector layers (33, 32, 31): - the photoactive layer, - the first electrode of the photoactive layer, and - the second electrode of the photoactive layer, are located within the resonant layer of the photonic crystal of the filter. - a filter for converting spectral information into spatial information, the filter being an optical component which can spatially separate spectral components of the light, and - an organic photodiode serving as a detector for converting the spatial information into transmittable electrical signals, wherein the filter and the organic photodiode form a single-piece monolith, the organic photodiode being integrally combined with the filter, wherein the filter comprises at least one spectrally resolving element in the form of at least one layer-like photonic crystal constituting the monolith, the filter being designed as a wavelength-dependent microresonator, the microresonator being designed as a dielectric mirror arrangement, at least consisting of - a first mirror layer arrangement with alternating high refractive index and low refractive index material layers, - a second mirror layer arrangement with alternating high refractive index and low refractive index material layers, and - a resonant layer located between the two mirror layer arrangements (2, 3), or - a first mirror layer arrangement with alternating high refractive index and low refractive index material layers, - a second mirror layer arrangement with alternating high refractive index and low refractive index material layers, and - a resonant layer located between the two mirror layer arrangements (2, 3), or wherein the microresonator consists of at least: - a first layer stack having a first predetermined refractive index, - a second layer stack having a second predetermined refractive index, the first refractive index and the second refractive index being different from each other, and - a resonant layer disposed between the two layer stacks (2, 3), - a first layer stack having a first predetermined refractive index, - a second layer stack having a second predetermined refractive index, the first refractive index and the second refractive index being different from each other, and - a resonant layer disposed between the two layer stacks (2, 3), wherein at least one layer (2, 3, 4) with wavelength-tuned, continuously increasing thickness D along a direction perpendicular to a direction along which the layers of the filter are stacked is formed, wherein the organic photodiode contacting the filter consists of at least the following detector layers - a photoactive layer, - a first electrode of the photoactive layer and - a second electrode of the photoactive layer, - a photoactive layer, - a first electrode of the photoactive layer and - a second electrode of the photoactive layer, wherein the photoactive layer is located between the two electrodes (33, 32) and at least one of the electrodes (33, 32) is structured along the direction in which the thickness D continuously increases, characterised in that the detector layers (33, 32, 31): - the photoactive layer, - the first electrode of the photoactive layer, and - the second electrode of the photoactive layer, - the photoactive layer, - the first electrode of the photoactive layer, and - the second electrode of the photoactive layer, are located within the resonant layer of the photonic crystal of the filter.