optical glass
Object Name9 Optical Elements
Makerprobably
Bausch & Lomb
Made FromGlass
Date1950-1953
Place MadeUnited States, probably NY, Rochester
TechniqueCast, ground and polished
SizeSee Individual Records
Accession Number53.4.44
Curatorial Area(s)
Not On View
Physical Description9 Optical Elements. Colorless glass; cast, ground and polished. (A,B) circular disc, convex on one side, flat on the other; (C) circular flat disc, convex on both sides; (D) circular flat disk, concave on one side, flat on the other; (E) circular disc, concave on both sides; (F) bulging disc; (G) nearly spherical disc with flat facet ground on one side; (H) bulging circular disc; (I) circular disc, mirrored on one side.Provenance
199 BCE-199 CE
about 1680-1700