Edmund Optics (EO) has introduced Techspec Calcium Fluoride Plano-Convex (PCX) lenses. These versatile lenses are excellent for use in applications that require superior performance from the ultraviolet (UV) through the mid-wave infrared (MWIR) spectra.
The lenses are available in 12.5mm, 25mm and 50mm diameters. These uncoated lenses feature a positive focal length, ranging from 18mm to 150mm, and have one flat and one convex surface.
Featuring a low Index of refraction, high laser damage threshold and low axial and radial-stress birefringence makes the new PCX lenses an outstanding choice for use with excimer lasers or for integration into IR systems. The lenses, manufactured using a vacuum grade UV substrate, offer greater than 90 per cent transmission from 193nm to 7μm.
Calcium fluoride is characterised by its low solubility and offers superior hardness in comparison to other fluoride-based substrates. This makes the lenses able to withstand harsh environments and exposure to the elements.