Plano-convex lenses are ideal for demanding applications requiring performance in the UV to mid-wave infrared spectrum. Plano-convex lenses have low refractive index, high laser damage threshold, low coaxial and radial stress birefringence, and are therefore very Ideal for use with excimer lasers or for integration into infrared systems. In addition, it is also available with low solubility and higher hardness than other similar fluorinated substrates, so these PCX lenses are resistant to harsh environments and weather