The invention relates to a multispectral imaging device including: a photosensitive detector DET made up of a matrix of pixels; an array of microlenses ML1, ML2, ML3 reproducing the matrix of pixels; and a filter module MF formed by a matrix of individual filters λ1, λ2, λ3 reproducing the matrix of pixels. The device is remarkable in that the array of microlenses is arranged directly in contact with the detector DET, and the filter module MF is made on a substrate SS that is put into contact with the array of microlenses.