Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Patent
1995-07-05
1997-10-21
Czaja, Donald E.
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
C03B 37075, C03C 1300, G02B 600
Patent
active
056791259
ABSTRACT:
A method for producing a synthetic silica glass for use with vacuum ultraviolet light comprises the steps of: (a) producing a soot preform; (b) heating the soot preform in an atmosphere containing fluorine to obtain a fluorine-doped soot preform; (c) consolidating the fluorine-doped soot preform to obtain a fluorine-doped synthetic silica glass; and (d) heating the fluorine-doped synthetic silica glass in an atmosphere containing hydrogen gas to obtain a synthetic silica glass doped with fluorine and hydrogen molecules. A synthetic silica glass having both a high transmittance and high ultraviolet light resistance with respect to light in the vacuum ultraviolet wavelength range can be produced.
REFERENCES:
patent: 4162908 (1979-07-01), Rau et al.
patent: 5086352 (1992-02-01), Yamagata et al.
patent: 5325230 (1994-06-01), Yamagat et al.
patent: 5326729 (1994-07-01), Yaba et al.
patent: 5364433 (1994-11-01), Nishimura et al.
patent: 5410428 (1995-04-01), Yamagata et al.
patent: 5474589 (1995-12-01), Ohga et al.
patent: 5523266 (1996-06-01), Nishimura et al.
Patent Abstracts of Japan, vol. 18, No. 288, Jun. 2, 1994 and JP 6056457, Mar. 1, 1994.
Shamoto et al., "Radiation-resistance characteristics of fluorine-doped silica fiber", Abstract from Database Inspec, Institute of Electrical Engineers, Stevenage, GB Inspec. No. 4846363.
Khotimchenko et al., "Determining the Content of Hydrogen Dissolved in Quartz Glass Using the Methods of Raman Scattering and Mass Spectrometry", translated from Zhurnal Prikladnoi Spectroskopii, vol. 46, No. 6, pp. 987-991, Jun. 1987.
Fujiwara Seishi
Hiraiwa Hiroyuki
Komine Norio
Czaja Donald E.
Nikon Corporation
Ruller Jacqueline A.
LandOfFree
Method for producing silica glass for use with light in a vacuum does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing silica glass for use with light in a vacuum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing silica glass for use with light in a vacuum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1003084