Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1975-11-26
1978-08-29
Bashore, S. Leon
Glass manufacturing
Processes
Forming product or preform from molten glass
65 30R, 65 31, 65 60D, 65DIG7, C03C 1702, C03C 1500, G02B 514
Patent
active
041100930
ABSTRACT:
The present invention relates to a glass composition for forming glass articles suitable for forming or being converted to articles or devices for use in the guided transmission of light, for both imaging and communications purposes. Base glass compositions are purified by phase separation, leached to remove impurities, and dopants are then deposited into interconnected pores of porous glass in such a fashion that properties of the glass are varied, e.g., for optical purposes, the index of refraction is controlled.
REFERENCES:
patent: 2336227 (1943-12-01), Dalton
patent: 2355746 (1944-08-01), Nordberg et al.
patent: 2522524 (1950-09-01), Lukes
patent: 3650598 (1972-03-01), Kithno et al.
patent: 3864113 (1975-02-01), Dumbaugh et al.
patent: 3938974 (1976-02-01), Macedo et al.
Litovitz Theodore A.
Macedo Pedro B.
Bashore S. Leon
Miga Frank W.
Neilan George J.
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