Patent ID: 7116404

Claim:
A lithographic apparatus, comprising: an illumination system that supplies a beam of radiation; an array of individually controllable elements that pattern the beam; a projection system that projects the patterned beam onto a target plane; a substrate table that supports a substrate, such that a target surface of the substrate is substantially coincident with the target plane; a sensor system that detects an intensity distribution of a radiation pattern in the patterned beam and that provides an intensity signal indicative of the detected intensity distribution; a positioning system that adjusts the radiation pattern by adjusting a position and an orientation of at least one of the array of individually controllable elements, a component of the projection system, and the illumination system; and a control system that controls the array of individually controllable elements such that they pattern the beam, that directs the radiation pattern on to the sensor system to receive said intensity signal, and that provides a control signal to control the positioning system according to the detected intensity distribution to adjust the radiation pattern, wherein the projection system comprises at least one component, the at least one component including an array of lenses arranged to receive the patterned beam, wherein each lens of the array of lenses receives and focuses a respective portion of the patterned beam, and wherein the array of lenses projects a corresponding radiation pattern onto the target plane.