Title:
合成により製造された石英ガラスのディフューザー材料及びその全体又は一部を構成する成形体の製造方法
Document Type and Number:
Japanese Patent JP6840765
Kind Code:
B2
Abstract:
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.
Inventors:
Schleich, Gerrit
Nuremberg, Frank
Getzendorfer, Andreas
Chorichu, Nadine
Franz, Bernhard
Kurt, Ursula
Doneron, Matthew
Nuremberg, Frank
Getzendorfer, Andreas
Chorichu, Nadine
Franz, Bernhard
Kurt, Ursula
Doneron, Matthew
Application Number:
JP2018541664A
Publication Date:
March 10, 2021
Filing Date:
February 13, 2017
Export Citation:
Assignee:
Heraeus Quarzglas GmbH & Co. KG
International Classes:
C03C3/06; C03B20/00; C03C11/00; F21V3/00; F21V3/06; G02B5/02
Domestic Patent References:
| JP61126502A | ||||
| JP2001180963A | ||||
| JP6305736A | ||||
| JP2002316825A | ||||
| JP2005239537A | ||||
| JP2014091634A | ||||
| JP62059535A |
Foreign References:
| US5674792 | ||||
| US20140268815 | ||||
| WO2008069194A1 |
Attorney, Agent or Firm:
Mikio Yoshimiya
Toshihiro Kobayashi
Toshihiro Kobayashi