SUMITA OPTICAL GLASS, Inc.
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About Us
A brief introduction to SUMITA
Value Chain
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Map
R&D, Manufacturing and Global Sales
Environmental Policy
Quality Policy
Downloads
News
Exhibitions
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.