Patent ID: 7109470

Claim:
A sensor arrangement for image recognition of an image object, comprising: a plurality of first optical sensor elements arranged in a raster layout and responding to light in a visible wavelength range; a plurality of second optical sensor elements responding to light in an invisible wavelength range, wherein said plurality of second optical sensor elements are arranged in the raster layout between the plurality of first optical sensor elements; a spotlight emitting light with a wavelength only within the invisible wavelength range; and a selector unit connected to said plurality of first optical sensor elements and said plurality of second optical sensor elements for selecting one of said plurality of first optical sensor elements and said plurality of second optical sensor elements, said selector element further connected to said spotlight for selectively activating said spotlight such that the activation of said spotlight is synchronized with the selection of said plurality of second optical sensor elements by said selector unit and deactivation of said spot light is synchronized with the selection of said plurality of first optical sensor elements by said selector unit.