DIFFUSER MATERIAL MADE OF SYNTHETICALLY PRODUCED QUARTZ GLASS, METHOD FOR PREPARING A SHAPED BODY MADE FULLY OR PARTIALLY FROM SAME

A diffuser material of synthetically produced, pore-containing quartz glass and a method for the manufacture of a molded body consisting fully or in part thereof. The diffuser material has a chemical purity of at least 99.9% SiO2, a cristobalite content of not more than 1%, and a density in the rang...

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Bibliographische Detailangaben
Hauptverfasser: Nuernberg, Frank, Donelon, Matthew, Franz, Bernhard, Goetzendorfer, Andreas, Klett, Ursula, Scheich, Gerrit, Tscholitsch, Nadine
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A diffuser material of synthetically produced, pore-containing quartz glass and a method for the manufacture of a molded body consisting fully or in part thereof. The diffuser material has a chemical purity of at least 99.9% SiO2, a cristobalite content of not more than 1%, and a density in the range of 2.0 to 2.18 g/cm3. Starting therefrom, to indicate a diffuser material which is improved with respect to diffuse reflectivity with Lambertian behavior over a wide wavelength range, high material homogeneity and UV radiation resistance, the quartz glass has a hydroxyl group content in the range of at least 200 wt. ppm and at least 80% of the pores have a maximum pore dimension of less than 20 μm.