National Aperture, Inc. is the leading manufacturer of precision micro-apertures, pinholes, slits, bar patterns, custom configurations, miniature translation stages, and motion control products.

Our intellectual property and patented designs have found their way into some of the most demanding applications imaginable. They include semiconductor inspection, manufacturing equipment, microscope positioning, laser alignment, medical robotics, and many more.

Our specialty is micro-miniature pinholes and slits.