Patent Document ID: 4135791
Application ID: 05797983
Patent Status: 1

Claim One:
1. Apparatus for reduced glare observation of an article through transparent, partially reflective and diffusive media wherein said media is located proximate said article and between said apparatus and said article, which apparatus comprises, an image receiving means; illumination means which directs an unfocused beam of light onto said article; light directing means to direct said light beam to rapidly and repeatedly illuminate successive portions of said article, which light is reflected from said article through said media to said image receiving means; an observation diaphragm positioned between said media and said image receiving means in the path of the above reflected light removed from and proximate to a focused image zone of said article, said diaphragm having a moveable aperture for moving in concert with said light directing means so as to rapidly scan the sequentially illuminated portions of said article, the remainder of said diaphragm screening out glare and means for moving said light directing means and said diaphragm aperture in synchronization.