Glass preform manufacturing method
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United States of America Patent
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Sep 30, 2014
Grant Date -
Mar 15, 2012
app pub date -
Sep 15, 2011
filing date -
Sep 15, 2010
priority date (Note) -
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Abstract
A glass preform manufacturing method, includes: preparing a glass element having a rough surface; turning a raw material of an alkali metal compound or a raw material of an alkaline earth metal compound into particles; depositing particles of the alkali metal compound or the alkaline earth metal compound on the rough surface of the glass element; oxidizing the particles of the alkali metal compound or the alkaline earth metal compound while diffusing alkali metal oxide or alkaline earth metal oxide in the glass element; and manufacturing a glass preform into which the alkali metal oxide or the alkaline earth metal oxide is doped.
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