National Aperture, Inc. is a premier manufacturer of precision micro-apertures, pinholes, slits, bar patterns, and custom configurations. Established in 1970 and based in Salem, New Hampshire, we have over 50 years of experience delivering high-quality products for demanding applications, including semiconductor inspection, laser alignment, microscope positioning, and medical robotics.

Our product line includes both manual and motorized precision miniature translation stages and motion control products, featuring sub-micron resolutions and high-speed performance in the smallest footprints available on the market. Our advanced fabrication techniques utilize proprietary computerized micro-drilling, micro-slitting, and micro-finishing processes, ensuring all aperture edges meet exacting standards traceable to NIST.

At National Aperture, we pride ourselves on our commitment to innovation and excellence, providing solutions that meet the specific needs of our diverse clientele. Our expertise and patented designs are trusted by industries worldwide, helping to drive advancements in technology and manufacturing.