Precision Apertures from National Aperture, Inc.

In the world of the very small National Aperture, Inc. has led the industry in innovations in Precision Apertures for thirty years.

We specialize in sizes from 0.5um to 1000um and up.

We make our apertures (micro-precision pinholes, slits, etc.) in a variety of materials including high-damage metals and exotic foils. We do things no one else can do including making pinholes on optically reflective surfaces.