Holophane
[ hol-uh-feyn, hoh-luh- ]
/ ˈhɒl əˌfeɪn, ˈhoʊ lə- /
Trademark.
a brand of glass having a surface pattern of small, lenslike areas for even diffusion of light.
Example sentences from the Web for holophane
This may be made of ground glass, opal glass, or be a dioptric globe such as the holophane.