The KPX543 N-BK7 Plano-Convex Lens is an uncoated, 12.7 mm diameter N-BK7 plano-convex lens with an effective focal length of 25.4 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
12.7 mm
透镜材料
N-BK7
增透膜
Uncoated
有效焦距
25.4 mm
表面质量
60-40 scratch-dig
表面精度,不规则性
λ/2
表面精度(光圈)
2.5 λ
表面平面度
λ/4
后焦距
22.34 mm
F/#
F/2
对中
≤3 arc min
主平面 2
-3.05 mm
曲率半径
13.120 mm
倒角
0.25-0.75 mm
倒角公差
45° ±15°, typical
直径公差
+0/-0.15 mm
焦距公差
±2 %
中心厚度
4.63 mm
中心厚度公差
±0.2 mm
边缘厚度
3.0 mm
通光孔径
≥central 90% of diameter
清洁
KPX543 N-BK7平面镜为无涂层,直径12.7 mm N-BK7平面镜,有效焦距25.4 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。