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US 6,310,737 B1Granted
Reflector with a resistant surface
AssigneeAlusuisse Technology & Management Ltd.
InventorsVolkmar Gillich, Renato Kirin, Roman Fuchs
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AssigneeAlusuisse Technology & Management Ltd.
InventorsVolkmar Gillich, Renato Kirin, Roman Fuchs
Estimating the term…
A reflector, with high total reflection, resisting mechanical stress and having a reflector body on which the following components are superimposed (a) a functional coating, e.g., a varnish, (b) a reflection layer structure composed of a reflecting metallic layer and a transparent ceramic layer, having for instance a geometric thickness of 3 nm or more or an optical depth of λ2, applied on the top of the metallic layer. The layer arranged on the surface of the reflection layer structure is formed by the transparent layer which acts simultaneously as a protection layer. The protection layer is a silicon oxide of general formula SiOx, where x is a number from 1.1 to 2.0, or is an aluminum oxide of formula Al2O3. The protection layer protects the underlying layers from mechanical stresses. In the DIN 58196 wipe test, the protected layer shows no damage after 50 test cycles, each with 100 wiping strokes. These reflectors are useful in the field of lighting and illumination where they can be used for lighting of display units with screens, primary lighting, secondary lighting, raster lighting, light ceilings or light deflector lamella.
A reflector with high total reflection, resisting mechanical stress, containing a reflector body made of metal on which are superimposed, in the following order,
A reflector with high total reflection, resisting mechanical stress, containing a reflector body on which are superimposed, in the following order,
Dependencies are inferred from the claim text.