Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2007-09-04
2007-09-04
Green, Anthony J. (Department: 1755)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S053000, C501S068000, C428S426000
Reexamination Certificate
active
10996507
ABSTRACT:
Disclosed is a synthetic silica glass optical material having high resistance to optical damage by ultraviolet radiation in the ultraviolet wavelength range, particularly in the wavelength region of less than about 250 nm and particularly, exhibiting a low laser induced density change. The synthetic silica glass optical material of the present invention contains at least about 0.1 ppm of aluminum and H2concentration levels greater than about 0.5×1017molecules/cm2. Additionally, the synthetic silica optical material of the present invention exhibits an H2to Al ratio of greater than about 1.2, as measured in ×1017/cm3molecules H2per ppm Al.
REFERENCES:
patent: 5086352 (1992-02-01), Yamagata et al.
patent: 5983673 (1999-11-01), Urano et al.
patent: 6174830 (2001-01-01), Jinbo et al.
patent: 6333283 (2001-12-01), Urano et al.
patent: 6339033 (2002-01-01), Jinbo et al.
patent: 6587181 (2003-07-01), Jinbo et al.
patent: 6630418 (2003-10-01), Sempolinski
patent: 6689706 (2004-02-01), Sempolinski
patent: 6709997 (2004-03-01), Urano et al.
patent: 6920766 (2005-07-01), Coriand et al.
patent: 2002/0144517 (2002-10-01), Fujiwara et al.
patent: 2003/0051507 (2003-03-01), Ikuta et al.
patent: 2003/0119650 (2003-06-01), Sempolinski
patent: 2005/0187092 (2005-08-01), Bookbinder et al.
V. Liberman, M. Rothschild, J.H.C. Sedlacek, R.S. Uttaro, A. Grenville, “Excimer-laser-induced densification of fused silica: laser-fluence and material-grade effects on the scaling law.” Journal of Non-Crystalline Solids 244 (1999) 159-171. no month.
Boek Heather D
Heckle Christine E
Moll Johannes
Smith Charlene M
Corning Incorporated
Green Anthony J.
Santandrea Robert P.
Schaeberle Timothy M.
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