Custom made optical filters
The Starna Group is the world\'s leading supplier of Certified Reference Materials for UV-Visible and NIR spectrophotometry, spectrophotometer cells, sampling accessories and optical components
Crystran Ltd are optical engineers specialising in the manufacture and supply of optical components from IR, visible and UV materials. We supply direct to customers all over the world and manufacture for research and prototype quantities as well as for production volumes. We also have a wide range of windows in stock.