Plano-concave lens, Fused silica, Ø 10 mm, f = -16 mm, mounted, ARB2-VIS

Plano-concave singlet in Fused silica, Ø 10 mm, focal length -16 mm, in a mount. ARB2-VIS broadband AR coating. Negative focal length: diverges the beam, for beam expanders and to shorten system length.