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100μm Aperture Diameter, 25mm Mounted, Acktar Blackened Pinhole

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Acktar Blackened Pinholes (mounted)

Stock #12-172
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Outer Diameter (mm):
25.0 ±0.2
Stainless Steel
Magic Black™
Fixed Aperture Diameter (μm):
100 ±3
Diameter of Mount (mm):
25.0 ±0.2
Thickness (mm):
0.02 nominal
Mount Thickness (mm):
3.0 ±0.1
Absorbance (%):
Model Number:

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Family Description

  • Low Reflectance from the EUV to SWIR
  • 99% Absorbance Blackening Coating
  • Aperture Sizes from 20 to 1000μm
  • Available Unmounted and Mounted

Acktar Blackened Pinholes feature Acktar Magic Black™ blackening coating that provides wide-band low reflectance from the extreme ultraviolet (EUV) to the short-wave infrared (SWIR). This coating provides near zero outgassing and can be used in temperatures up to 380°C. Acktar Blackened Pinholes are coated on both sides, including the pinhole edge, and are available either unmounted or mounted in a 25mm mount for easy integration into optical systems. These stainless steel substrate pinholes are ideal for spatial filtering applications requiring low back reflection and scattering from light sources.

Note: Please contact us for custom aperture options.

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