Entertainment / Photography / Optical Glass: Is used for manufacturing lenses and prisms. It is specially manufactured to be free of defects and distortion, and to withstand heat and humidity. Each type f optical glass is classified according to its refractive index and light dispersive quality. Two or more types of optical glass are typically used in the component elements of photographic lenses.
Glass Adjective Synonyms: glassware, crystal
Glass Noun Synonyms: window, pane, window-pane, plate glass
Science / Chemistry / Optical Activity: A substance that is capable of rotating plane-polarized light. Molecules of an optically active substance cannot be superimposed on their own mirror images, just as your left hand cannot be superimpos MORE