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AssigneeCircon Corporation
InventorsWilliam J. S. Zhong, John A. Williams
Estimating the term…
An etchable core glass composition consisting essentially of the following components present in the glass in the following mole percent ranges is shown: CHART I ______________________________________ CHEMICAL COMPOSITION RANGES mole percent ______________________________________ SiO.sub.2 35-46 B.sub.2 O.sub.3 22-28 BaO + SrO + CaO + ZnO 20-32 Al.sub.2 O.sub.3 + Y.sub.2 O.sub.3 0-3.5 La.sub.2 O.sub.3 + Nd.sub.2 O.sub.3 + Sm.sub.2 O.sub.3 + CeO.sub.2 1-11 As.sub.2 O.sub.3 + Sb.sub.2 O.sub.3 0-1.5 ______________________________________ A core glass for manufacturing a microchannel plate made from a glass composition having components in the glass range as defined above is also shown. The core glass has a transformation temperature in range of about 637.degree. C. to about 654.degree. C., a liquidus temperature below 1000.degree. C. and wherein the composition consists essentially of the components described herein above and wherein the glass has an average lineal coefficient of thermal expansion in the range of about 74.times.10.sup.-7 per .degree.C. to about 91.times.10.sup.-7 per .degree.C. at a temperature between 25.degree. C. and 300.degree. C. is shown.
A glass composition comprising the following components present in the glass in the following mole percent ranges:
A microchannel plate made comprising substantially parallel surfaces wherein a plurality of glass fibers are fused together and the cores thereof are etched and extend between said parallel surfaces, said glass fibers being made from a core glass composition comprising the following components in the glass in the following mole percent ranges:
A cylindrically shaped, non-porous glass rod comprising a solid central area, said glass rod being formed of a glass composition having a transformation temperature in the range of about 637.degree. C. to about 654.degree. C. and a liquidus temperature below 1000.degree. C., said glass having a composition comprising the following components, present in the glass, in the following mole percent:
Dependencies are inferred from the claim text.