Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1992-02-18
1993-08-24
Group, Karl
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 53, 65 3013, 65 181, C03C 400
Patent
active
052388808
ABSTRACT:
A method of manufacturing gradient index optical element comprises preparing a sol using silicon alkoxide and a metal alkoxide as a dopant source of index-modifying cations. The sol is treated to obtain a wet gel. Metal alkoxide from the wet gel is eluted by immersing the wet gel in a solvent to produce a concentration gradiation of the metal alkoxide in the wet gel, and the wet gel is then washed. The steps of eluting and washing are repeated so that a gradient index optical element is produced having a large difference in refractive index between the outer periphery portion and the center of the gel.
REFERENCES:
patent: 4686195 (1987-08-01), Yamane
patent: 4797376 (1989-01-01), Caldwell et al.
patent: 4902650 (1990-02-01), Caldwell et al.
patent: 5068208 (1991-11-01), Haun et al.
patent: 5069700 (1991-12-01), Yamane et al.
Inami Minoru
Noda Satoshi
Adams Bruce L.
Group Karl
Olympus Optical Company Limited
Wilks Van C.
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