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.
Hellma is the leading supplier for glass and quartz cuvettes, fiber optical probes and certified reference materials for UV/Vis/NIR/Raman/IR spectrophotometers and many other instruments using optical measurements. All products are made in Germany and ensure reliable measurements in optical analysis.
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