Plano-Convex and Plano-Concave lenses are positive and negative focal length lenses respectively and are used to focus a collimated light or to collimate the light. Wavelength Opto-Electronic offers a wide variety of Plano-Convex and Plano-Concave IR focusing lens made by using specific materials like CaF₂, Ge, Si, ZnSe, ZnS, Chalcogenides, etc.

These focusing lenses are used in industrial, life science, and defense applications. Customized designs with different substrates, coatings, sizes and thicknesses are available upon request.