UV transmitting glasses

Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C501S077000, C501S059000

Reexamination Certificate

active

07358206

ABSTRACT:
The present invention relates to a boroaluminosilicate glass which exhibits excellent UV transmission. In particular, the present invention is directed at an alkali fluorine-doped boroaluminosilicate glass comprising, in mole percent on the oxide basis, of 30-80% SiO2, 1-20% Al2(O, F2)3, 5-35% B2O3, 5-20% R2O, where R is Li, Na, K, Rb or Cs, and an amount of up to 12% of F. The glass possesses an R/Al molar ratio of between 0.4 to 3 and an F/O molar ratio of no greater than 0.35. The alkali fluorine-doped boroaluminosilicate glass of the present invention exhibits a UV transmission at 300 nm, of greater than 80%/mm.

REFERENCES:
patent: 3671380 (1972-06-01), Ali et al.
patent: 3779781 (1973-12-01), Baak et al.
patent: 4063001 (1977-12-01), Zlochower
patent: 4367012 (1983-01-01), Ikeda et al.
patent: 4792535 (1988-12-01), Fine
patent: 4870034 (1989-09-01), Kiefer
patent: 4913518 (1990-04-01), Fine
patent: 5547904 (1996-08-01), Watzke et al.
patent: 5599753 (1997-02-01), Watzke et al.
patent: 5610108 (1997-03-01), Watzke et al.
patent: 5747398 (1998-05-01), Higby et al.
patent: 6180218 (2001-01-01), Fyles et al.
patent: 6436858 (2002-08-01), Laborde et al.
patent: 7217673 (2007-05-01), Naumann et al.
patent: 2003/0087743 (2003-05-01), Peuchert et al.
patent: 2007/0213195 (2007-09-01), Hikata et al.
patent: WO 02/081394 (2002-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

UV transmitting glasses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with UV transmitting glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UV transmitting glasses will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2765652

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.