The KPX340-C N-BK7 Plano-Convex Lens is a 400-700 nm anti-reflection coated, 12.0 mm diameter N-BK7 plano-convex lens with an effective focal length of 20 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
12.0 mm
透镜材料
N-BK7
增透膜
400-700 nm
有效焦距
20.0 mm
表面质量
60-40 scratch-dig
表面平面度
λ/4
后焦距
17.40 mm
F/#
1.7
对中
≤3 arc min
主平面 2
-2.60 mm
曲率半径
10.374 mm
中心厚度
3.90 mm
边缘厚度
2.0 mm
通光孔径
≥central 90% of diameter
镀膜类型
Visible Single-Layer MgF2
镀膜代码
-C
清洁
损伤阈值
7 J/cm², 10 ns pulses, 20 Hz at 532 nm
KPX340-C N-BK7平面镜是一种400-700 nm的防反射涂层,直径12.0 mm N-BK7平面镜,有效焦距20 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。它是最常见的光学玻璃,它提供了良好的性能和价值。