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Proceedings Paper

Diffusion theory and macro-GRIN material with prescribable index profiles
Author(s): Richard Blankenbecler
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Paper Abstract

Optical material that is described by a line on the glass map, as opposed to the point describing 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 introduced and illustrated. The range of applications for axial and radial GRIN lenses overlap but are not identical. 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 macro 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.

Paper Details

Date Published: 21 September 1998
PDF: 14 pages
Proc. SPIE 3482, International Optical Design Conference 1998, (21 September 1998); doi: 10.1117/12.321978
Show Author Affiliations
Richard Blankenbecler, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 3482:
International Optical Design Conference 1998
Leo R. Gardner; Kevin P. Thompson, Editor(s)

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