He is considered a pioneer in the field of cut optical glass.

They produce more than 300 tons of optical glass a month.

It is also used in making optical glasses and lenses.

It was optical glass, from a pair of men's spectacles found at the scene.

They've licked the problem of optical glass over there, but they still have a lot to learn about leather.

Among other things, Ohara is a major supplier of optical glass.

He stared into the optical glass, wondering at himself.

Virtually all the optical glass used in reconnaissance satellites comes from Germany.

In return, Japan needed mercury and high-quality optical glass.

The first spectacles utilized quartz lenses since optical glass had not been developed.

Each lens consists of special optical glass and measures just five millimeters in diameter.

Abbe was instrumental in the development of the famous Jena optical glass.

In the ceiling was an oval of optical glass that should be perfectly transparent to the laser's frequency.

It adds something entirely original: a staircase made of melted optical glass, a material used to make camera lenses.

Crown glass (optics) is a type of optical glass used in lenses.

Hoya, a leading manufacturer of optical glass, purchased Pentax in 2008.

It can be argued that casting of this mirror launched the optical glass industry in the United States.

The sand was exported and was mainly used in the manufacture of optical glass.

His "Hunter's Dream" is a masklike image cast in optical glass.

"Usually twice as expensive as normal optical glass."

Optical fibers are made of extremely pure optical glass.

Please note: Schott B270 is an optical glass used in precision optics.

Adams performed one his first research projects during World War I, when he produced optical glass.

In the 1940s, Fuji Photo entered the optical glasses, lenses and equipment markets.