Patent ID: 6379867
Filing Date: 2002-04-30
Classification: G03F

Abstract:
A method for projecting a pixel-mask pattern onto a subject, the method comprising the steps of:dividing the subject into a plurality of sites, with each site comprising a plurality of groups of pixel-sites; dividing the pixel-mask pattern into a plurality of sub-patterns, each sub-pattern being directed to a specific group of pixel-sites in the plurality of sites; providing one of the sub-patterns to a pixel panel for creating a plurality of pixel elements by selectively manipulating the pixel panel responsive to the provided sub-pattern; simultaneously focusing the plurality of pixel elements to discrete, non-contiguous pixel sites; simultaneously moving the plurality of pixel elements relative to the subject; and providing a next one of the sub-patterns to the pixel panel responsive to the movement and responsive to the pixel-mask pattern, so that a first pixel site of a group receives a first value and a second pixel site of the same group receives a second value different from the first value.