Multispectral image sensor and imaging module thereof

An imaging device, comprising at least one image sensor, at least one lens, and a circuit board, wherein

• the at least one image sensor comprises a microlens array, a filter array, and a photosensitive chip sequentially arranged along a direction of incident light, wherein
• the photosensitive chip comprises a plurality of pixel units;
• the filter array comprises at least one filter unit set, each of the at least one filter unit set comprises a plurality of filters corresponding to different wavelengths, and each of the plurality of filters is configured for a corresponding wavelength of the incident light to pass;
• and
• the microlens array comprises at least one microlens unit, and the at least one microlens unit is configured to converge the incident light, and focus the converged incident light on the photosensitive chip after passing through the filter array;
• the at least one image sensor and the at least one lens are arranged on the circuit board;
• and
• the at least one lens is arranged on the at least one image sensor, to irradiate the incident light on the at least one image sensor after passing through the at least one lens.