Patent ID: 7119951
Filing Date: 2006-10-10
Classification: G02B

Abstract:
1. A polarizing system for deep UV light comprising: a substrate having a surface normal inclined between 65° and 75° to a direction of propagation of an unpolarized beam of light having a nominal wavelengths less than 250 nm; an antireflective coating on the surface of the substrate that reflects no more than 2% of a first of two orthogonally related polarization components of the unpolarized beam of light; the antireflective coating also reflects at least 80% of a second of the two orthogonally related polarization components of the unpolarized beam of light; and an optical beam conveyor that routes a first portion of the unpolarized beam that is reflected from the antireflective coating as a substantially polarized beam intended for further propagation.