Patent ID: 7855348

Claim:
A system, comprising: a mail sorting system; and a camera system, comprising: a support structure; a camera supported by the support structure, wherein the camera is configured and arranged to image mailpieces to facilitate sorting thereof; a group of light emitting diodes (LEDs) supported by the support structure and configured and arranged to illuminate mailpieces imaged by the camera, the group of LEDs comprising a first plurality of LEDs of a first type that emit light, with a first spectrum profile and a second plurality of LEDs of a second type that emit light with a second spectrum profile that is substantially different than the first spectrum profile; and an adjustment mechanism configured and arranged to adjust, independent of the nature of at least some individual mailpieces being imaged by the camera system, the relative amounts of illumination energy generated by the first and second pluralities of LEDs during scan cycles of the camera so as to optimize a spectral response of the camera system during said scan cycles.