Patent ID: 6094269
Filing Date: 2000-07-25
Classification: G01B,G06T

Abstract:
An optical metrology system for measuring a contour of a surface of an object, the system comprising:an optical assembly arranged proximate to the object surface, including,first and second radiation sources each configured to project a substantially linear beam of imagable electromagnetic radiation on a predetermined portion of the proximate object surface, wherein said first and second radiation beams intersect to simultaneously illuminate a scanning region of said predetermined portion of the object surface, anda camera fixed relative to said first and second radiation sources and having a linear arrangement of detector elements substantially aligned with said predetermined portion of the proximate object surface so as to receive said imagable electromagnetic radiation reflected from said scanning region; andan adjustment apparatus constructed and arranged to adjust a relative position of the object and said optical assembly in a direction substantially parallel with a first axis to cause said linear beams projected by said first and second radiation sources to intersect to cause said scanning region to illuminate said predetermined portion of said proximate object surface during a scan.