Inventors:
Kent N. Maffitt - Minneapolis MN
Hubert U. Brueckner - White Bear Lake MN
Dean R. Lowrey - St. Paul MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
B29D 1100
C23C 1500
C25D 110
Abstract:
An optical element of polymeric material is provided with a microstructured surface, thereby rendering the surface substantially non-reflecting while maintaining a high degree of transmissivity. The element is formed via replication from a stamper prepared from a glass original having a similar microstructured surface which is formed by etching a cleaned surface of the glass in vapors of hydrofluoric acid followed by sputter etching with inert gas ions.