Gradient index lens
GRADIUM® Lightpath Technologies

GRADIUM® lenses are made from LightPath's proprietary axial gradient index glass. Its unique refractive qualities can be exploited to reduce spherical aberrations - resulting in performance similar to single term aspheres. GRADIUM® lenses provide a cost-effective solution for many high-performance applications.
Ideal for high power applications, GRADIUM® lenses and their gradient-index structure often allow a GRADIUM® singlet to replace a conventional spherical doublet. GRADIUM® lenses can be custom designed for visible or near infrared applications in diameters from 5mm to over 100mm. GRADIUM® doublets are also available for better achromatic performance and can equal the performance of conventional triplets.