Crystran manufacture in the UK for shipment across the world

We are optical engineers specialising in fabricating components from IR and UV materials, mainly crystal or innovative glasses used for their particular transmission properties, from which we derive the name of our company.

You can see a full list of the materials we work with on our materials page. This includes well-known materials for use in the IR spectrum such as Germanium and Zinc Selenide, but also more exotic crystals such as KRS-5 and Cesium Iodide providing IR transmission up to 50 um. For deep-UV applications, we offer a wide variety of fluoride salts such as Calcium Fluoride and Magnesium Fluoride, all cut and precision-polished under one roof. Additionally, we work with a whole host of glass types suitable for visible / near-IR and UV optics. Filter glasses, high index glasses or even the commonly found BK-7 can all be supplied.

World class facilities - world wide deliveries

With state-of-the-art 5-axis CNC milling, double-sided and planetary polishing, and the latest metrology equipment, we pride ourselves on our ability to support our customers to the industry standards they expect. Accredited to ISO9001:2015, we count many major OEM companies and most major Universities amongst our customers. We can help you too.

Technical sales

The sales team at Crystran possess a wide range of experience of not only optics, but also of the chemistry and physics of materials and of crystal growth. By staying close to our customers and giving straightforward honest advice whenever we can we aim to provide the best service possible. Your call, fax or e-mail will be answered promptly by a member of the technical sales team who will be able to advise you immediately.


Whether your need is for a single optic or a high volume manufacturing run, Crystran is always ready to offer to your requirements quickly; on many occasions we can source from stock overnight, just call or e-mail to find out. You can click to access our current stock offers and in addition to this we have large quantities of stock from previous production runs, so we may have something suitable in stock that is not on our website.


The data on our website can be downloaded as individual data sheets, or it is all in our Handbook of Optical Materials which can be browsed on-line or you can request a free A5 hard copy for your bookshelf. Just contact us for this. We have established a reputation as a leader in the supply of the broadest range of IR and UV optical materials. There is a huge range of other crystals and glasses that do not feature on our product list. If the material you seek is not in our listing, please contact us as we may have further information and will know where you can get it.

Competitive pricing and delivery

We have access to some of the finest crystal growth facilities in Europe through the agencies of our associate company in Germany, who are renowned for their high quality optical fluoride materials.We manufacture blanks and polished optics from crystals grown within our group or from stocks of ingot held at Crystran to ensure lowest costs and quick delivery times. By constantly refining our production methods and investing in new equipment we are able to keep prices competitive whilst offering the highest quality optical components.

Crystran is committed to maintaining recognised Quality and Environmental policies.

Crystals and finished optics are inspected at all stages to ensure that quality is maintained. We adopt total quality management principles and are approved to ISO9001:2015 by LRQA.

We are an environmentally responsible company. Crystran is now accredited with the Environmental Standard ISO14001:2015 by SGS.

Crystran is an industry-leading organisation with a wealth of experience. In our former years, as a part of a large international chemical company we spent more than 200 cumulative years working with specialised optical materials. Collectively we had overseen the manufacture of thousands of crystals and managed several large contracts in the USA, Japan and at the European research facility at CERN in Geneva.

All this proved to be a good start in December 1993 when we continued to trade under our own ownership, and today we occupy our own factory with 16,000 sq ft of manufacturing space and 35 employees including graduates in Chemistry, Physics and Quality Assurance. Our customer base is global and ranges from major international manufacturers of analytical and control instrumentation, aerospace companies and space agencies, to research establishments and most leading Universities worldwide.

We are an established UK manufacturing company, located in Poole on the south coast of England.

We do not have branches or representatives in other countries, we supply directly to all our customers worldwide. For further details on how to find us please look at our contact us page.

Korth Kristalle is our sister company based in Germany, who specializes in the growth of high-quality crystalline fluoride materials. You can visit their website here:

Meet Our Sales Team

Mark Middleton 

Managing Director

Joining us in 2014, Mark has over 3 decades of experience working-in and leading photonics-related businesses, initially starting his career at AWE as a graduate Laser Physicist

Alaina Wright 

Sales and Marketing Manager

Alaina started her career as a Business Trainee within the multinational company of Merck and now she has been involved with optics for 35 years.

Matthew Stone  

Trainee Sales Manager

Matt Joined Crystran in 2019 as a polishing technician, he has held several roles in production before moving to a role in Sales in November 2023 

Kirsty Taylor

Accounts Executive

Kirsty joined our team in 2013, she has had several roles within the sales department, including technical sales, marketing and accounts. 

Amanda Robinson

Sales and Marketing Executive

Mandy joined our team in 2018, she is responsible for the social media post and newsletters, along with responding to technical sales enquiries.

Moira Smith 

Shipping Administrator

Moira joined the team in 2022 to cover maternity leave and has since become a permanent member of the Team. 

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