Non-lambertian glass diffuser and method of making
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United States of America Patent
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Nov 19, 2002
Issued Date -
N/A
app pub date -
Dec 7, 2000
filing date -
Aug 20, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A glass diffuser is fabricated by first producing a metal shim submaster or other high temperature resistant diffuser having a surface relief structure on one surface. A glass substrate material is heated to a suitable temperature and at least one exposed surface is thereby softened to a desired degree. The submaster diffuser, and particularly the surface relief structure, is then placed in contact with the exposed and softened glass substrate material in order to replicate the surface relief structure in the glass material. The submaster diffuser and the glass substrate are separated and then the glass is allowed to cool to form a glass diffuser.
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