Frequently Asked Questions

The L25 Mounted Rectangular Slit Aperture is a precision aperture with a slit size of 0.025mm (25μm) wide and 1.5mm long, mounted in a circular holder made of black anodised aluminium.

The L25 aperture is made of copper foil, which is blackened on one side.

The foil used in the L25 aperture has a diameter of 3mm.

The available mount diameters for the L25 aperture are 12.7mm, 16mm, and 25mm.

The tolerance of the L25 aperture size is +/-1μm.

Blackening one side of the copper foil helps to reduce reflections and improve the aperture's performance in optical applications.

Other products in the L series include L2, L5, L10, L50, L100, and L250 mounted rectangular slits, each with different slit dimensions.

You May Also Like