The KBC073AR.16 Bi-Concave Lens is a 650 to 1000 nm anti-reflection coated, 50.8 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -250 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 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.

KBC073AR。16双凹透镜为650 ~ 1000nm的防反射涂层,直径50.8 mm,有效焦距- 250mm的N-BK7双凹透镜。它是为满足激光电光应用的要求而设计的。纽波特公司的N-BK7精密双凹透镜是由经过精细退火的光学玻璃制造的,并使用主测试板抛光至严格公差,以确保最小的波前畸变。