NON-LAMBERTIAN GLASS DIFFUSER AND METHOD OF MAKING

摘要

A light diffuser is fabricated by first producing a metal shim submaster (30 ) or other high temperature resistant diffuser having a surface relief structu re on one surface. A glass substrate material (56) is heated to a suitable temperature and at least one exposed surface is thereby softened to a desire d degree. The submaster diffuser (30), and particularly the surface relief structure, is placed in contact with the exposed and softened glass substrat e material (56) in order to replicate the surface relief structure in the glas s material (56). The submaster diffuser (30) and the glass substrate (56) are separated and then the glass is allowed to cool to form a glass diffuser.