Gradient index-type optical device and process for production th

Details Gradient index-type optical device and process for production th Gradient index-type optical device and process for production th

1989-01-26

1991-07-16

Gonzalez, Frank

350 9634, G02B 618

Patent

active

050320009

ABSTRACT:
A gradient index-type optical device produced by the ion exchange process, comprising: a transparent dielectric body having a refractive index distribution, and a refractive index distribution-adjusting portion disposed on at least a part of the transparent dielectric body. Because of the presence of the refractive-index distribution, the ion-exchange speed therethrough is controlled to provide a controlled refractive index distribution in the transparent dielectric body. As a result, a gradient index-type optical device having a large refractive index factor (g value) without substantial increase in aberration.

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