Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Reexamination Certificate
2005-03-30
2009-06-30
Griffin, Steven P (Department: 1791)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
C065S030100, C065S032100
Reexamination Certificate
active
07552601
ABSTRACT:
Starting from an optical component of quartz glass for transmitting ultraviolet radiation of a wavelength between 190 nm and 250 nm, with a glass structure essentially without oxygen defects, a hydrogen content ranging from 0.1×1016molecules/cm3to 5.0×1016molecules/cm3, and with a content of SiH groups of less than 5×1016molecules/cm3, to provide such a component which is particularly well suited for use with linearly polarized UV laser radiation, the present invention suggests that the component should have a content of hydroxyl groups ranging from 10 to 250 wt ppm and a fictive temperature above 1000° C.
REFERENCES:
patent: 6508084 (2003-01-01), Yokota et al.
patent: 6761951 (2004-07-01), Otsuka et al.
patent: 7312170 (2007-12-01), Nishimura et al.
patent: 2003/0074925 (2003-04-01), Brennan et al.
patent: 2003/0138587 (2003-07-01), Otsuka et al.
patent: 2005/0109435 (2005-05-01), Liebermann et al.
patent: 2006/0183622 (2006-08-01), Nishimura et al.
patent: 101 59 961 (2003-06-01), None
patent: 0 401 845 (1990-12-01), None
patent: 1 125 897 (2001-08-01), None
N.F. Borrelli, C.M. Smith, J.J. Price, and D.C. Allan, “Polarized Excimer Laser-Induced Birefringence in Silica”. Applied Physics Letters, vol. 80, No. 2, (2002), p. 219-221.
Khotimchenko et al, “Determining the Content of Hydrogen Dissolved in Quartz Glass . . . ”. Zhurnal Prikladnoi Spektroskopii, vol. 46, No. 6 (Jun. 1987), p. 987-991.
Shelby, “Reaction of Hydrogen with Hydroxyl-Free Vitreous Silica”. J. Appl. Phys., vol. 51, No. 5 (May 1980), p. 2589-2593.
D.M. Dodd et al., “Optical Determinations of OH in Fused Silica”, Communications, (1966), p. 3911.
CH. Pfleiderer et al., “The UV-Induced 210 nm Absorption Band in Fused Silica with Different Thermal History and Stoichiometry”. J. Non-Cryst. Solids 159 (1993), p. 145-153.
R. Brückner, “Silicon Dioxide”. Encyclopedia of Applied Physics, vol. 18 (1997), p. 101-131.
Kaiser Steffen
Kühn Bodo
Thomas Stephan
Griffin Steven P
Heraeus Quarzglas GmbH & Co. KG
Kemmerle, III Russell J
Tiajoloff and Kelly LLP
LandOfFree
Optical component of quartz glass, method for producing the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical component of quartz glass, method for producing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical component of quartz glass, method for producing the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4145909