Patent ID: 6967711

Claim:
A lithographic apparatus, comprising: an illumination system that supplies a beam of radiation; a patterning array including individually controllable elements that selectively divide the beam of radiation into a plurality of sub-beams modulated according to a desired pattern on the patterning array; an array of microlens sets, each microlens set having an aperture stop and forming an image from a respective one of said individually controllable elements in a first plane; an array of field microlenses, each field microlens forming an image of the aperture stop of a respective one of said microlens sets in a second plane; and a substrate table that supports a substrate in said second plane, such that the substrate is positioned to receive the image of the aperture stop; wherein a spacing of elements in said patterning array, said array of microlens sets, and said array of field microlenses is the same.