Patent ID: 6034805
Filing Date: 2000-03-07
Classification: G02B

Abstract:
An apparatus for scanning a deep-UV laser beam in two dimensions comprising:a first scanner mirror having a dielectric coating for a predetermined deep-UV wavelength at a specified angle of incidence;a second scanner mirror having a dielectric coating for said deep-UV wavelength at said angle of incidence;a first scanner head to drive said first scanner mirror;a second scanner head to drive said second scanner mirror;a base plate having a rotation adjustment relative to a stationary platform; andmeans to fix said first and second scanner heads onto said base plate;wherein said first and second scanner mirrors are located and orientated such that an imaginary beam entering along a predetermined path is reflected within approximately an imaginary plane and that the incident angles of said imaginary beam on said first and second scanner mirrors are approximately equal to a specified angle, said incident angles can be adjusted simultaneously by rotating said base plate.