Aluminum surfaces for technical lighting purposes

Details Aluminum surfaces for technical lighting purposes Aluminum surfaces for technical lighting purposes

1995-10-25

1999-01-05

Speer, Timothy

Stock material or miscellaneous articles

Composite

Of metal

428472, 4284722, B32B 1504

Patent

active

058560203

ABSTRACT:
Reflector for technical lighting purposes, having a reflecting surface of aluminum and a protective, transparent, pore-free barrier layer of aluminum oxide produced by anodizing having a dielectric constant .epsilon. of 6 to 10.5 at 20.degree. C., where the barrier layer is of thickness d that either satisfies the condition

REFERENCES:
patent: 4131518 (1978-12-01), Fromson
patent: 4379196 (1983-04-01), Halper
patent: 5116674 (1992-05-01), Schmidhalter et al.
patent: 5403657 (1995-04-01), Textor
patent: 5582863 (1996-12-01), Textor
Applied Optics, vol. 17, No. 3, Feb. 1, 1978, pp. 333-334 for Aluminum Mirrors Al.sub.2 O.sub.3 -Protected, with High Reflectance . . . .
Applied Optics, vol. 32, No. 25, Sep. 1, 1993, pp. 4843-4845 for Analytical Solutions for Zero-Phase-Shift Transparent Coatings . . . .

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