Patent ID: 6775009
Filing Date: 2004-08-10
Classification: B82Y,G01Q,G02B,G11B

Abstract:
A differential microscopy system for imaging an object, the system comprising:a mask comprising an array of aperture pairs, each aperture pair having a common separation, wherein during operation the mask is positioned adjacent the object to receive radiation emitted from the object; and an imaging system configured to image radiation emerging from the array of aperture pairs to produce a first conjugate image of the emerging radiation and an overlapping, second conjugate image of the emerging radiation laterally displaced relative to the first conjugate image by an amount corresponding to the aperture pair separation and a magnification of the imaging system, wherein a superposition of the first and second conjugate images define a set of aperture pair images each corresponding to a different one of the aperture pairs, and wherein the superposition suppresses a contribution to each aperture image of a selected component of the radiation emerging from each corresponding aperture pair.