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 |