The PAC21AR.16 Near IR Achromatic Lens is a 750 to 1550 nm antireflection coated, 1.99 inch (50.0 mm) diameter, N-LaK22 and N-SF6 achromatic doublet lens with an effective focal length of 150.0 mm. This achromat is computer optimized at infinite conjugate ratios for applications in the near-IR spectrum, producing the smallest spot size possible for polychromatic light sources between 750 to 1550 nm. Spherical and chromatic aberrations are minimized to provide superior performance. For most applications, diffraction-limited spot size can be achieved when using with monochromatic light sources of wavelength up to 2 µm. Common applications for these near IR achromatic lenses include Imaging, Microscopy, and various spectroscopic methods in the near IR spectrum.

• 直径

  50.0 mm

• 透镜材料

  N-LaK22/N-SF6

• 增透膜

  750-1550 nm

• 有效焦距

  150.0 mm

• 表面质量

  60-40 scratch-dig

• 后焦距

  139.87 mm  

• F/＃

  3  

• 对中

  3-5 arcmin

• 曲率半径

  86.84 mm  

• 半径 2

  -83.84 mm

• 半径 3

  -894.70 mm

• 倒角

  0.30 mm  

• 倒角公差

  45°

• 直径公差

  +0.0/-0.1 mm

• 焦距公差

  ±2.0%

• 中心厚度

  16.5 mm  

• 中心厚度公差

  ± 0.2 mm

• 边缘厚度

  12.47 mm  

• 通光孔径

  49 mm

• 厚度，中心 1

  11.00 mm  

• 厚度，中心 2

  5.50 mm  

• 镀膜类型

  NIR Multilayer

• 镀膜代码

  AR.16E

• 透镜类型

  Achromatic Doublet

• 透镜形状

  Plano-Convex

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PAC21AR。近红外消色差透镜为750 ~ 1550nm涂膜，直径1.99英寸(50.0 mm)，有效焦距150.0 mm的N-LaK22和N-SF6消色差双透镜。该色差仪是计算机优化在无限共轭比下应用于近红外光谱，产生最小的光斑大小可能多色光源之间的750至1550纳米。球差和色差被最小化以提供更好的性能。对于大多数应用程序,衍射极限光斑大小可以实现当使用单色光源的波长2µm。这些近红外消色差透镜的常见应用包括成像、显微镜和各种近红外光谱方法。