The KPX376 N-BK7 Plano-Convex Lens is an uncoated, 20.0 mm diameter N-BK7 plano-convex lens with an effective focal length of 35 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.
透镜形状
Plano-Convex
直径
20.0 mm
透镜材料
N-BK7
增透膜
Uncoated
有效焦距
35.0 mm
表面质量
60-40 scratch-dig
表面平面度
λ/4
后焦距
32.20 mm
F/#
1.8
对中
≤3 arc min
主平面 2
-2.80 mm
曲率半径
18.155 mm
中心厚度
4.20 mm
边缘厚度
1.2 mm
通光孔径
≥central 90% of diameter
清洁
KPX376 N-BK7平凸透镜是一种无涂层、直径20.0毫米的N-BK7平凸透镜,有效焦距为35毫米。=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。它是最常见的光学玻璃,它提供了良好的性能和价值。