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.

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