Patent ID: 8836814

Claim:
An apparatus, comprising: a light spectrum power distribution detector comprising a plurality of narrow-band photo-electric sensors; wherein the sensors each have a given sensitive bandwidth within the frequency range of visible light, wherein the given bandwidth of at least two of the sensors is at least partially different, the number of the sensitive bandwidths being N, wherein N is greater than 3; wherein the sensors are interspersed on an image capture unit of a digital camera unit; and wherein the apparatus further comprises an output configured to output a signal indicative of the light spectrum power distribution as detected by the detector; and wherein: picture sensing elements of the image capture unit are arranged in groups of four in which there are two picture sensing elements sensitive for a first color and two other picture sensing elements each sensitive for second and third colors such that each group is capable of producing signals corresponding to three different colors; and most or all of the sensors are aligned with or in place of the picture sensing elements for the first color.