Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1989-08-18
1990-07-31
Henry, Jon W.
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
350642, 350164, 4289122, 428333, 428702, G02B 508, G02B 528, G02B 100
Patent
active
049445812
ABSTRACT:
A rear face mirror comprised of multilayer film for use in a synthetic resin optical part has a five or six layer structure formed on a synthetic resin substrate and made from SiO, (SiO.sub.2), CeO.sub.2, Al(Al) and SiO(Cu) having particular optical or mechanical thickness.
REFERENCES:
patent: 4179181 (1979-12-01), Chang
Adams Bruce L.
Henry Jon W.
Olympus Optical Company Limited
Wilks Van C.
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