Reflector with resistant surface

Details Reflector with resistant surface Reflector with resistant surface

G - Physics

02

B

G02B 5/12 (2006.01) C25D 11/18 (2006.01) G02B 1/10 (2006.01)

Patent

CA 2212833

Reflector, for example for lamps used for technical lighting purposes, having a surface which is resistant to mechanical and chemical attack and exhibits high total reflectivity. The body (10) of the reflector, for example a rolled aluminium product such as a foil , a strip or a sheet, exhibits a surface layer in the form of a layer system containing a) a pre-treatment layer (11) onto which is deposited b) a functional layer (12) with organo-functional silanes of a metal compound and deposited on this c) a metal-containing reflective layer (13), where layer a) is deposited on the reflector body and increases the strength of bonding to the above lying layers and layer b) effects a flattening and increase in the mechanical strength of the above lying layer c). The pre-treatment layer may be a layer produced by anodic oxidation, the functional layer b) may be a sol-gel layer and the reflective layer c) may be a metallic reflective layer, in some cases with one or more protective layers, which are deposited e.g. by a vacuum thin layer deposition process.

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