High temperature furnace with thermal insulation

Increasing the retention of Ge0.sub.2 during production of glass

Inert atmosphere cooler for optical fibers

Lenses and lens arrays

Light weight porous structure

Manufacture of a quartz glass vessel for the growth of single cr

Manufacture of ceramic tiles from industrial waste

Manufacture of preforms for energy transmitting fibers

Manufacture of quartz glass crucible for use in the manufacture

Manufacturing method of glass for optical transmission body

Manufacturing method of synthetic silica glass

Marble melt glass fiber feed system

Method and apparatus for controlling thermal environment in a gl

Method and apparatus for exhausting optical fiber preform tubes

Method and apparatus for forming mineral fibers

Method and apparatus for forming silica by combustion of liquid

Method and apparatus for fused silica production

Method and apparatus for making multi-component glass soot

Method and apparatus for manufacturing glass fibers

Method and apparatus for minimizing air infiltration in the...