Spherical lens

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Achromatic lens

Achromatic lenses are computer optimized to correct for on-axis spherical and chromatic aberrations. They consist of two or more optical components of different refractive index cemented together. These lenses are useful in axial imaging aplications where a small spot size is required and for broadband imaging covering the visible spectrum. They are supplied uncoated but many types of anti-reflection coating may be applied on request. These achromats offer excellent performance for demanding laser and on-axis imaging applications.

(This achromatic lens diameter is 127mm, Centre error is <3arcmin)


Achromatic lenses are so important for its Centre error. 

The following table is a simple reference about our process level. 

 Dimension

 Cemented lens qty

 Centre error

 Cemented lens qty

Centre error 

 5mm~20mm

 2pcs

  <1arcmin

 3pcs

  <1arcmin

 25mm~55mm

 2pcs

  <1arcmin

 3pcs

  <2arcmin

 75mm~120mm

 2pcs

  <2arcmin

 3pcs

  <2arcmin

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