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  • Achromatic Doublet Lenses
  • Achromatic Doublet Lenses

Achromatic Doublet Lenses

  • Broad diameter range: 1.0mm to 300mm
  • Substrate materials: customized
  • Centering: <3 arc minutes
  • Coating options: MgF2 single layer, V-type, broad band AR coating or custom
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Type Achromatic Doublet Lenses Material Customized
Clear Aperture >90% Focal Length Tolerance ±2%
Coating R<0.5%@400-700nm or Custom   Diameter Tolerance +0.0/-0.1mm
Thickness Tolerance ±0.2mm Centering 3 arcmin
Irregularity λ/4@632.8nm Surface Quality 40/20 S/D
Chamfer 0.2mm x 45 degree

Achromatic Doublet Lenses, using  a pair of different glasses , correcting chromatic aberration caused by the variation of focal length with wavelength,  have better performance to minimize spherical aberration in comparison with single lenses, and are able to be applied in the whole visible light region. This kind of lenses is probably the most economical choice of achieving quality white light illumination and imaging.

Hangzhou Shalom EO provides custom achromatic doublet lenses according to customer’s request.