A system and method is used to pattern a substrate. A projection beam
received from a radiation system is patterned using an array of
individually controllable elements. A portion of the projection beam is
directed directly onto one of the individually controllable elements and
collecting radiation reflected therefrom using each one of a first array
of focusing elements. An image of the first array of focusing elements is
projected onto a second array of focusing elements using a projection
system, such that radiation reflected from one of the individually
controllable elements is projected via one of the focusing elements in
the first array of focusing elements and the projection system to one of
the focusing elements in the second array which focuses the radiation
onto a spot on the substrate.