Material selection

We work in a range of wavelengths from Ultraviolet, Visible and Infrared. To find out more information on our materials please select using the wavelength filter below.

Stock optics

We have a comprehensive range of stock optics in a variety of materials in the form of windows, lenses, prisms and other optical components. We aim to ship the next day and have been shipping internationally for many years.

Please follow the link to see our range of stock optics. If you are looking for something not listed, or it is marked as out of stock, please contact us and speak with our Technical Sales team who are always happy to help.

Bespoke optics

The very nature of the wide range of materials and applications in the IR, UV and visible regions of the spectrum means that most of our work tends to be bespoke. We manufacture in research and prototype quantities in addition to high-volume production.

ATR Prisms For Fast Efficient IR Spectroscopy

Crystran makes ATR prisms routinely from ZnSe, Germanium, Silicon and KRS5 with prism angles of 22.5 º, 30º, 45º and 60º to suit a variety of geometries, wavelength ranges, and reflection conditions.

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A Guide to selecting CaF2 grades

Crystran has a range of CaF2 windows in IR/UV and Raman grade available in stock for next day shipment. We also have state-of-the-art capabilities to manufacture custom parts, please visit our website or email us for more information.


We rely on our metrology instruments and highly trained inspectors to be able to deliver precise and strict quality control of all of our optical components.

KRS5 Optical Components

Stock lines and over runs are available immediately. 
Custom Manufacture takes a little longer.