Patent ID: 9715214
Date: 2017-07-25
CPC Classifications: G02B,G03H

Claim:
1. A holographic imaging system, comprising: a volume hologram having a front and a back and a plurality of multiplexed diffraction gratings formed therein each configured to provide high angular and spectral wavefront selectivity; an objective lens having a front and a back and being disposed in front of the hologram so as to perform an optical transformation between a point on a surface in front of the objective lens corresponding to said diffraction grating and a beam propagating between the back of the objective lens and the front of the hologram; a collection lens having a front and a back and being disposed in back of the hologram so as to perform an optical transformation from beam propagating from the back of the hologram to the front of the collection lens and to a point in back of the collection lens; and a multi-spectral illuminator disposed with respect to the hologram so as to provide an illumination beam of light coupled to the back of the hologram to produce multiple diffracted beams of light at the front of the hologram corresponding to wavelengths of light in the illumination beam which are focused by the objective lens to respective different positions on the surface in front of the objective lens corresponding to said diffraction grating, wherein the volume hologram is configured in the system to function as both the illumination hologram and the imaging hologram to provide for dispersion matching thereof and simultaneously provide mapping, based on satisfaction of Bragg phase-matching, of points from multiple depths in an object space to distinct, corresponding locations on an image plane.