Patent ID: 7023605

Claim:
A digital micromirror device (DMD), comprising: a) a base element having a first side and a second side, said first side provided with a two dimensional array of individually addressable mirrors; b) a heat sink coupled said second side of said base element; c) a frame having an aperture at least the size of the mirror army; d) a window between said frame and said base element, said window comprising a material adapted to permit at least 90% transmissibility of UV wavelengths at 185-nm and above; e) a plurality of clamping arms extending about said frame and said heat sink such that said window is clamped between said frame and said base element with a clamping force; and f) an elastomeric o-ring sealing element situated between said window and said base element, wherein said clamping force and said sealing element effect a hermetic seal between said window and said base clement.