National Aperture
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Frequently Asked Questions

The applications are laser optics, spatial filtering, and microscopy.

The diameter is 3/8 inch (0.3753 inch max.), 9.53mm.

The finish is gold plated on one side and reverse side flat poly black up to 98% emissivity in visible and near infrared.

The positional tolerance is ø.006 inch (0.152mm).

The thickness is 0.001 inch (25µm) nominal.

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