Method of adjusting refractive index distribution lenses

Details Method of adjusting refractive index distribution lenses Method of adjusting refractive index distribution lenses

1987-12-07

1989-07-04

Kellogg, Arthur

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3013, 65116, C03B 2702, C03B 3200

Patent

active

048447242

ABSTRACT:
The refractive index distribution in refractive index distribution lenses may be adjusted to better approach an ideal by heating the refractive index distribution lens. When the refractive index distribution lens was created by diffusion of refractive index changing ions into a body, further heating in an environment in which no additional ions can diffuse into the body causes further migration of ions within the body so that its refractive index distribution approaches an ideal.

REFERENCES:
Applied Optics, vol. 21, No. 6, Mar. 15, 1982, pp. 1063-1065, High Index Gradient in Glass by Ion Exchange, J. L. Coutoiz et al.

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