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Nearly 50 Years Experience

  • Typical Applications
    • Spatial filtering
    • Laser light control
    • Gas/liquid flow control
    • Spectrometry
    • Fiber optics
    • Astronomy
    • General optics
  • Standard Materials
    • Stainless Steel
    • Copper
  • Optional Materials
    • Tungsten
    • Gold
    • Molybdenum
    • Tantalum
    • Titanium
    • Nickel
    • Brass
    • Platinum
    • Beryllium Copper
    • Paper, etc.
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General Information

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 1000µm with custom sizes available.
  • Standard slits range in size from 1.0µm 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.

Items List

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