Definitions for optical glass
Random House Webster's College Dictionary
high-quality, homogeneous, color-free glass, as flint or crown glass, having specified refractive properties, used in lenses and other components of optical systems.
Origin of optical glass:
clear homogeneous glass of known refractive index; used to make lenses
Use the citation below to add this definition to your bibliography:
"optical glass." Definitions.net. STANDS4 LLC, 2013. Web. 25 May 2013. <http://www.definitions.net/definition/optical glass>.