Abstract

Optical material that is described by a line on the glass map (n_d = f(υ_d)), as opposed to a point sufficient for homogeneous material, promises new types of optical design applications of improved performance. These will incorporate lenses of gradient refractive material with either axial or radial profiles. These materials open up the designer’s available parameter space to include a controlled gradient in both index and dispersion. The availability of prescribable GRIN material allows unusual lens geometries that will be illustrated in the talk. The range of applications for axial and radial GRIN lenses are not the same. Prescribable radial GRIN material has a much broader range of applications. The main subject of this talk will be the fusion/diffusion process used to produce radial and axial GRIN material. This process is simple, repeatable, and applicable to mass production for both geometries. The advantage of GRIN technology and its availability in commercial lens design programs provides the opportunity to push performance and reduce cost.

© 1998 Optical Society of America