The KPA11 Precision Aspheric Lens is an uncoated aspheric lens, made with L-BAL35 optical glass, with 15.0 mm diameter and 18.75 mm effective focal length. Aspheric lenses can be used to reduce the number of lens element, thus reduce the size and weight of optical assemblies. Aspheric surfaces can increase the numerical aperture of a lens while minimizing system aberrations. These precision aspheric lenses are computer optimized for optimal performance with minimum aberrations. Exact performance parameters can be calculated by feeding the lens parameters in any standard optical design software.