The KPX361 N-BK7 Plano-Convex Lens is an uncoated, 15.0 mm diameter N-BK7 plano-convex lens with an effective focal length of 21 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

  15.0 mm

• 透镜材料

  N-BK7

• 增透膜

  Uncoated

• 有效焦距

  21.0 mm  

• 表面质量

  60-40 scratch-dig

• 表面平面度

  λ/4

• 后焦距

  17.70 mm  

• F/＃

  1.4  

• 对中

  ≤3 arc min

• 主平面 2

  -3.30 mm  

• 曲率半径

  10.893 mm  

• 中心厚度

  5.00 mm  

• 边缘厚度

  2.0 mm  

• 通光孔径

  ≥central 90% of diameter

• 清洁

  See How to Clean Optics

• 
  

KPX361 N-BK7平面镜为无涂层，直径15.0 mm N-BK7平面镜，有效焦距21 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。