Optical Alignment Device and Method of Use.
DEPARTMENT OF THE ARMY WASHINGTON D C
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An optical alignment device, having a first optical path and a second optical path intersecting the first optical path, includes a positioning means to assure that the first optical path is perpendicular to a radiation sensitive surface at a point when positioned on the surface. The method includes positioning the optical alignment device on the radiation sensitive surface, viewing along the second optical path and adjusting the position of a source of radiation until the source appears centered on the first optical path. Author