Compare nine aperture geometries in one set for spectroscopy, beam profiling and slit-scan imaging. Each slit is supplied as an unmounted, uncoated aluminium disc.
Included in the set
One of each combination: widths of 50, 100 and 200 µm, each with lengths of 3, 6 and 12 mm.
- Quantity: 9 slits.
- Outside diameter: 25.4 mm (1 inch).
- Plate thickness: 0.2 mm aluminium.
- Front marked with slit width; back unmarked.
The set is useful for comparing throughput and aperture selection during optical development before choosing a fixed geometry. Check the drawings against your holder and mechanical layout.
Need another aperture size? Request a custom slit or pinhole. For beam delivery and instrument design, explore our optical engineering services.



