OHARA INC.

Optical glass is used in various optical devices such as digital single lens reflex cameras, projectors, television cameras, automotive cameras, security cameras and medical devices. At OHARA, we meet all optical design needs with a line-up of over 140 types of optical glasses with the characteristics that enable optical devices to attain higher performances, miniaturization and cost reduction. The cutting-edge glass materials of the highest quality that OHARA provides support people around the world in their smiles and sense of wonder.

• 01Abundant glass types

  131 different types of optical glass for use in polished lenses and optical elements. For the purpose of global environmental conservation, OHARA uses no lead or arsenic in these 131 glasses. To distinguish these glasses from others containing lead or arsenic, the names for these 131 environmentally safe glass types begin with S-.

We have prepared drawings and charts that graphically present the refractive index and the Abbe number but also other properties important in the selection of optical glass, including partial dispersion ratio, coloring, specific gravity, temperature coefficient of the refractive index (Δn/ΔT) and the linear expansion coefficient. They are available on the catalog download page.

Glass Type All Glass Types Comparative Table