Patent ID: 7180643

Claim:
A system for capturing light on an image sensor, the light being directed from select areas of a platen that are configured to receive a biometric object, the image sensor configured to form print images therefrom, comprising: the image sensor; a reference beam source configured to output a selected one of a plurality of reference beams, each of the reference beams having a different orientation; and a holographic element, comprising, a top surface having imaging areas corresponding to the select areas of the platen, the platen being supported by the top surface, an end surface that receives the selected one of the plurality of reference beams, a body portion configured to direct the reference beam from the end surface towards a respective one of the imaging areas and corresponding ones of the select areas based upon the orientation of the reference beam, the reference beam interacting with the biometric object through reflection from the top surface of the holographic element, such that, through frustrated total internal reflection between the reference beam and the biometric object, biometric information correlating to the biometric object is generated, and a bottom surface configured to transmit the biometric information received from the top surface and the body portion of the holographic element toward the image sensor, wherein different image translations or different magnifications of at least a portion of the biometric object are generated in the biometric information based on which of the select areas and which of the imaging areas the reference beam was directed towards by the body portion, which is based on the orientation of the reference beam.