The APAC17 Achromatic Aspherical Lens is a 425 to 675 nm antireflection coated (front surface), 0.98 inch (25.0 mm) diameter, N-LaK8 and N-SF57 achromatic doublet lens with an effective focal length of 40.0 mm. The back surface has a molded aspheric polymer cap with a protective seal. This achromat is computer optimized to provide optimal color correction and the smallest RMS spot size close to the diffraction limit. These lenses can be used within the wavelength regime of 400-2000nm. However, the color and spherical aberration correction is only optimized over the wavelength regime of 400-700nm. The Aspherical achromatic lenses not only have superior color correction comparing to standard achromats, but also has very similar spherical aberration corrections to those of machined aspheres. To reduce the wavefront errors arising from the standard achromats the second surface of these aspherical achromats are fused with a molded polymer surface. It is an ideal choice for Imaging, Microscopy, Fiber coupling, and Scanning and other applications that use a broadband laser or normal light sources.

• 直径

  25.0 mm

• 透镜材料

  N-SK14/N-SF57

• 增透膜

  425-675 nm

• 有效焦距

  40.0 mm

• 表面质量

  40-20 scratch-dig

• 后焦距

  33.48 mm  

• 曲率半径

  24.80 mm  

• 半径 2

  -37.60 mm

• 半径 3

  -135.00 mm

• 直径公差

  +0.0/-0.05 mm

• 中心厚度

  11.5 mm  

• 中心厚度公差

  ± 0.2 mm

• 边缘厚度

  7.61 mm  

• 边缘厚度公差

  ±0.2 mm

• 通光孔径

  90% of central diameter

• 厚度，中心 1

  9.00 mm  

• 厚度，中心 2

  2.50 mm  

• 镀膜类型

  Visible Multilayer

• 镀膜代码

  AR.14 - Front

• 透镜类型

  Achromatic Doublet

• 透镜形状

  Plano-Convex

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APAC17消色差非球面透镜为425 ~ 675 nm的反反射涂层(前表面)，直径0.98英寸(25.0 mm)，有效焦距40.0 mm，为N-LaK8和N-SF57消色差双透镜。背面有一个模压成型的带有保护密封的非球面聚合物帽。该色差仪经过计算机优化，可提供最佳的色彩校正和接近衍射极限的最小RMS光斑尺寸。这些透镜可以在400-2000nm波长范围内使用。然而，颜色和球差校正仅在400-700nm波长范围内进行优化。非球面消色差透镜不仅具有比标准消色差透镜更好的色差校正，而且具有与加工非球面透镜非常相似的球差校正。为了减少由标准消色差产生的波前误差，这些非球面消色差的第二表面与模压聚合物表面融合。它是一个理想的选择，成像，显微镜，光纤耦合，扫描和其他应用，使用宽带激光或普通光源。