Yamamoto Kogaku was the first company in the
world to develop the technology for fusing and integrally
molding film and polycarbonate (Film Insert Technology).
This technology has enabled the creation of ultra-lightweight
lenses and sports glasses employing zero-distortion, high-accuracy
lenses that deliver outstanding optical performance. Featuring
shock resistance about ten times that of glass together with
high abrasion resistance, these plastic optical lenses are
at the heart of our "SWANS" brand products, which
creates special glasses for fishing, golf, baseball, marathon
running, etc. as well as ski and swim goggles.
In addition to dust and eye protection glasses, we have developed
various laser filters by adopting on our technology for manufacturing
plastic filters that selectively block different wavelengths
of light, allowing us to offer one of world's largest selections
of optical lens products featuring the most advanced technical
capabilities.
Besides eye protection products, our lineup also includes
respiratory protective devices including simple masks, dust/gas
masks and powered respirators, which are collectively developed
and sold under the "YAMAMOTO" brand.