Zinc Selenide ZnSe is a transparent, yellowish polycrystalline substance which transmits in the range range 0.5-21µm. It is ideal for mid-infrared applications, but can also transmit some visible light. This means optics incorporating ZnSe lenses lend themselves to visual inspection when IR light is turned off.

A ZnSe lens is a precision optic commonly used in thermal imaging, high power CO2 laser systems and in the life sciences. Ricun Optics manufacture high quality Zinc Selenide lenses to a variety of specifications and in a number of sizes. 

Spherical, cylindrical, and meniscus lenses are available in several diameters, thicknesses, focal length and configurations. Aspherical, plano-concave, concave-convex , and plano convex lenses are other options.   If you aren’t sure which type of ZnSe lens would work best for your application, we can also provide custom ZnSe lens design consulting.

Specification of Znse lens