Over 50 Years of Experience

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.

• Standard pinholes range in size from 2µm to 1000µm with custom sizes available.
   
• Standard slits range in size from 2.5µm to 200µm, with custom sizes available.
   
• High Power pinholes and slits are available as standard items.
   
• All aperture edges are carefully fabricated employing proprietary computerized micro-drilling, micro-slitting and micro-finishing techniques. All finished components are rigidly quality controlled before shipping. Standards are traceable to NIST.
   
• For special applications, we offer a selection of standard and non-standard customs.