Designed to meet the demanding requirements of laser electro-optic applications, Newport's BK 7 precision bi-concave lenses are manufactured from fine annealed optical glass and are polished to tight tolerances using master test plates to ensure minimum wavefront distortion. Standard diameters from 6.35 mm to 50.8 mm and standard focal lengths are available either uncoated or multi-layer AR coated, with a choice of broadband coatings or a laser line V-coating for 1064 nm.

Designed to meet the demanding requirements of laser electro-optic applications, Newport's BK 7 precision bi-concave lenses are manufactured from fine annealed optical glass and are polished to tight tolerances using master test plates to ensure minimum wavefront distortion. Standard diameters from 6.35 mm to 50.8 mm and standard focal lengths are available either uncoated or multi-layer AR coated, with a choice of broadband coatings or a laser line V-coating for 1064 nm.