Edmund Optics TechSpec Calcium Fluoride Plano-Convex (PCX) Lenses

Edmund Optics introduces TechSpec Calcium Fluoride Plano-Convex (PCX) Lenses. The lenses are suitable for use in demanding applications that require good performance from the ultraviolet (UV) through the mid-wave infrared (MWIR) spectra.

Featuring a low index of refraction, high laser damage threshold and low axial and radial-stress birefringence, the lenses are suitable for use with Excimer lasers or for integration into IR systems. The lenses, manufactured using a vacuum-grade UV substrate, offer greater than 90% transmission from 193 nm to 7 μm.

Calcium fluoride is characterised by its low solubility and is said to offer better hardness in comparison to other fluoride-based substrates. This makes the lenses able to withstand harsh environments and exposure to the elements. They are available in 12.5, 25 and 50 mm diameters.

The uncoated lenses feature a positive focal length, ranging from 18 to 150 mm, and have one flat and one convex surface. They are RoHS compliant.