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Aspheric Lenses


The curvature radius of an aspherical lens continuously changes from the center to the edge with the change of the main optical axis

Classification:


The curvature radius of an aspherical lens continuously changes from the center to the edge with the change of the main optical axis,which can better correct spherical and chromatic aberration,thereby improving the quality of the lens spot.The lens is optimized to reduce the aberration to a large extent by adjusting the constant of the cone and aspherical coefficient.

The aspheric lenses due to the single-element design help greatly reduce the number of lenses in the optical system,as well as allowing optical component designers to use fewer optical components than traditional spherical components to correct image aberrations.The aspheric lenses are widely used in fields such as barcode scanning,laser collimation,and optical imaging.

 

Specification
Dimension Tolerance+0/-0.05mm
Center Thickness Tolerance±0.1mm
Centration<1′
Wavelength405nm/587.6nm/4μm/10.6μm etc
Chamfer0.1mmX45°           
Flatness DeviationRMS 0.25μm
CoatingDielectric Coating
MaterialK9, BK7, H-ZF2, H-ZF7LA, CaF2, Fused Silica, Sapphire, ZnSe, etc.
Surface Quality40/20(MIL-PRF-13830B)

 

 

 

Dimension

(mm)

Effective Focal Length

(mm)

Back Focal Length

(mm

Numerical Aperture

Collimator Lens Light Aperture

(mm)

Focus End Lens Light Aperture

(mm)

MaterialCoating
12.5104.90.6511.438.4Fused SilicaAR@250-400nm
25.0209.90.6522.8617.4Fused SilicaAR@250-400nm
50.04019.70.6545.7235.1Fused SilicaAR@250-400nm

 

 

 

Dimension

(mm)

Effective Focal Length(mm)

Back Focal Length

(mm)

Numerical ApertureCenter Thickness(mm)Edge Thickness(mm)MaterialsCoating
10.07.54.510.675.02.21H-ZF2AR@400-700nm/AR@650-1050nm/AR@1000-1650nm
12.59.56.510.665.01.60H-ZF2AR@400-700nm/AR@650-1050nm/AR@1000-1650nm
15.09.04.810.837.01.35H-ZF2AR@400-700nm/AR@650-1050nm/AR@1000-1650nm
40.030.020.600.6615.52.56H-ZF2AR@400-700nm/AR@650-1050nm/AR@1000-1650nm
50.050.038.340.5019.48.00H-ZF2AR@400-700nm/AR@650-1050nm/AR@1000-1650nm

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Aspheric lenses

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