Crystran

06/05/2026

New to stock at Crystran — ZnS Multispectral windows with AR/DLC coating for the 7–14 µm range.
Designed for demanding infrared applications where both transmission and durability matter, these polished ZnS windows combine:
• Excellent IR transmission across the LWIR band
• Anti-reflection performance in the 7–14 µm range
• DLC coating for improved durability and environmental resistance
These windows may also offer a practical alternative to Germanium AR/DLC coated windows for some infrared applications.
Now available from stock in:
• 40 mm x 3 mm - https://bit.ly/4tkK1gD
• 50 mm x 3 mm - https://bit.ly/4uvtS95
Ideal for thermal imaging, UAV payloads, defence, and harsh-environment IR systems.

04/03/2026

With Germanium supply becoming more challenging, many IR system designers are exploring alternative materials.

How do ZnSe, ZnS, and Silicon compare?

Our latest blog explains the strengths, limitations, and applications of the most common infrared optical materials used in thermal imaging, spectroscopy, and laser systems.

Read more:

Germanium vs ZnSe, ZnS and Silicon: explore the strengths, limitations and applications of key infrared optical materials used in thermal imaging and spectroscopy.

22/12/2025

28/01/2025

Mark and I are all set up at Photonics West in booth 3656, feel free to pay us a visit!

20/09/2024

Explore Zinc Selenide (ZnSe) in our latest newsletter! Learn about its key properties, including its infrared transmission and applications in CO2 lasers, thermal imaging, and spectroscopy. Perfect for high-power optical solutions!
Check it out here: https://bit.ly/4ebyycq

13/09/2024

It’s cake day! We are supporting Macmillan Coffee Morning with all of our home-baked and bought goodies! Thanks to everyone who bought in baked goods and reached deeply into their pockets to support a good cause.

22/08/2024

Curious about the different types of silicon and their optical properties? Our latest blog post explores how the manufacturing processes and doping methods influence the characteristics of silicon, making it suitable for various applications, from thermal imaging to Lidar. Dive into the details of CZ and FZ silicon, and discover why Crystran is your go-to source for custom silicon optics. Read the full article on our website to learn more.
Explore the blog post here: https://bit.ly/3Mgs4N9

09/08/2024

Elevate your optical projects with precision-engineered solutions from Crystran! Discover how our customizable, high-quality optics can transform your work. Whether you’re in R&D, production, or education, our latest newsletter has all the details you need. Dive in to learn more and take your optical capabilities to the next level!

At Crystran, we specialize in manufacturing and selling optics made from crystalline materials, offering...

10/05/2024

ZnSe prisms are commonly used in infrared spectroscopy due to their high transmission in the mid-infrared region. Their optical properties make them ideal for directing and manipulating infrared light within various analytical instruments and applications.