Optical: systems and elements – Mirror – Including specified control or retention of the shape of a...
Patent
1995-01-20
1997-02-18
Dzierzynski, Paul M.
Optical: systems and elements
Mirror
Including specified control or retention of the shape of a...
359201, 359871, G02B 508
Patent
active
056046421
ABSTRACT:
The invention provides method and apparatus for making light-weight honeycomb mirrors by assembling fused quartz ribs in a honeycomb pattern so that rib ends are proximate other rib ends to form rib junctions. A laser beam is then directed at the rib junctions to weld the rib ends together to form a honeycomb structure having a plurality of rib-defined cells or modules therein. Fused quartz plates of matching size are then positioned across the so-formed rib cells and welded by directing a high powered laser beam at the edges of the plates and adjacent ribs to weld the plates to the rib cells of the honeycomb structure and define a honeycomb mirror blank. The surface of the plates of, e.g. fused quartz, are then ground and polished to a mirror finish and a reflective coating added, to complete the light-weight honeycomb mirror by the method and apparatus of the invention.
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Deminet Czeslaw
Luke George
Dzierzynski Paul M.
Schuberg Darren E.
Stover Thomas C.
The United States of America as represented by the Secretary of
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