The KPX633-C N-BK7 Plano-Convex Lens is a 400-700 nm anti-reflection coated, 25.4 mm diameter N-BK7 plano-convex lens with an effective focal length of 850 mm. It has = λ/2 surface irregularity, 60-40 scratch-dig. N-BK7 is an excellent material for most visible and near infrared applications. It is the most common optical glass, and it provides great performance at a good value.

KPX633-C N-BK7平面镜是一种400-700 nm的防反射涂层,直径25.4 mm N-BK7平面镜,有效焦距850 mm。=λ/ 2表面不规则,60 - 40 scratch-dig。N-BK7是大多数可见光和近红外应用的优良材料。它是最普通的光学玻璃,具有良好的性能和性价比。