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Aspherical Lens

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Aspherical Lens

The aspheric lens is designed to focus light while eliminating spherical aberration in highly diffuse light source applications, one of which includes focusing the output from a laser diode. Aspheric lenses can increase the numerical aperture of the lens while minimizing system aberrations. Aspheric lenses can also reduce the number of components required for multi-element optical systems. Aspheric lenses can reduce the total weight of the system, while providing many advantages, such as simplifying assembly and increasing luminous flux.


 

parameter:


Diameter tolerance

-0.1mm

wavelength

587.6nm

Center deviation

3~5 arc minutes

Finish

60/40

Aspheric error

0.75um RMS

Effective aperture

90%

Center thickness tolerance

±0.1mm