SUMITA OPTICAL GLASS, Inc.
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About Us
A brief introduction to SUMITA
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News
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Nazetaro’s Room
How Optical Glasses Are Made
How Optical Fibers Are Made
How Aspheric Lenses Are Made
What is Aspheric Lens?
In 1950s
Basics of Optical Glass
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2012.08.21
High index optical glass, K-LaSFn23 was developed.