Patent ID: 8029149
Filing Date: 2011-10-04
Classification: G02B,G03B

Abstract:
1. A method for illuminating and projecting a profile image of an object along an optical path to a glass screen for inspection, said method comprising the steps of: providing a high intensity light source configured from a plurality of contiguously demountable lamps disposed on a circular substrate, said substrate having a front and a back surface, said substrate removably mounted on a first housing, said housing placed behind said object, said housing is positioned so that said light sources are coaxial to said optical path; said profile image is projected through a first element relay lens situated in front of said object; said profile image converges and projects through a second housing disposed an adjustable diaphragm; providing a second element relay lens placed to receive said image while projecting said image to a coated telecentric parfocal lens, thereafter, displaying a magnified real image on a high resolution lapped glass screen for inspection.