Scanning disks for use in tandem scanning reflected light microscopes and other optical systems
 Improvements in optical scanning disks, and methods to maximize resolution and contrast of a viewed target object featuring a Nipkow type disk and methods to produce the disk which has a multitude of pinhole apertures located in a defined annular disk region where each pinhole is equidistantly spaced from its nearest neighboring holes. 
Tandem Scanning Corporation
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James D.
Hill