National Aperture, Inc. is the leading manufacturer of precision micro-apertures, pinholes, slits, bar patterns and custom configurations. Our specialty is micro-miniature pinholes and slits. Standard pinholes range in size from 0.5µm to 1000 µm with custom sizes available. Standard slits range in size from 1.0µm to 200µm with custom ...
Fixed aperture (pinhole)