Multi-spectral filter

A multispectral filter with a filtering array for a sensor with an array of elementary sensors, said filtering array comprising an elementary pattern formed of an arrangement of N elementary cells capable of filtering central wavelengths λ1, . . . , λk, . . . , λN, the position of the central wavelengths in the elementary pattern being determined so that: each wavelength being associated with an integer e1, . . . , ek, . . . , eN, selected so that each of the products e1x λ1, . . . , ekx λk, . . . , eNx λN is substantially constant, each central wavelength λk is positioned at ek positions in the elementary pattern so that the maximum ratio between the distance between two proximal positions of said central wavelength and the associated central wavelength is minimal.