Walthy optical slits are photo-etched on a chromium-coated optical glass substrate.

Slits of widths: 5-1000 μm extend across the whole substrate

Substrate Diameter: 25.4 mm (1.0 inch)

Thickness: 1.5mm

Slit width Tolerance: ±5% 

Optical density: 3

We can accept customization, from prototype to mass production.  If you have different requirements or designs, please feel free to contact us for more details.