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 Sumita Optical Glass
was originally established in 1953 as a manufacturer of glass
materials for lenses. Just over a
decade later, in 1966, Sumita Optical Glass developed a form of compound optical fiber
which would prove useful over the following decade. In 1970, Sumita Optical Glass
achieved the development of delay line glass for TV tubes.
Other significant developments included cadmium-free glass in 1971,
liquid crystal spacer glass in 1973, high-performance prism glass for
binoculars in 1978, and direct press formation of lens materials in 1984.
The subsequent evolution in electronics technology provided Sumita Optical Glass with
sufficient challenges in new materials development. In 1985, the Company
won the coveted Nikkan Kogyo Shimbun (Japan industrial Newspaper) Award
for the development of an aspheric lens manufacturing process. In the
same year, Sumita Optical Glass also released a unique sealing glass, followed the next
year by Photaron, an optical glass with the same properties as crystal
fluorite, which received an award in 1988 from Photonics Spectra magazine
of the U.S. as one of the best 25 new products.
Sumita Optical Glass has continued to win awards for new products, including fluoride
compound glass fiber (1989), an economical glass fiberscope (1991),
aspheric molded glass lenses (1992), Gadron and super Gadron low
dispersion glass (1995), and Lumilass B blue fluorescent glass. In
addition, Sumita Optical Glass has recently developed infrared ray checking devices,
the world's first infrared ray checking device using transparent
crystalline glass, and a light-storing glass material.
At the opening of the 21st century, Sumita Optical Glass developed K-PSFn1/K-PSFn3,
high index optical glass, K-PG375 for precision molding glass at ultra-low temperatures. |
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