Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1988-02-26
1989-06-20
Kellogg, Arthur
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 323, 501 13, C03C 406
Patent
active
048406554
ABSTRACT:
An optically activated bleaching process effective to permanently modify the color of surface-colored silver halide-containing photochromic glasses produced by thermal reduction treatments is described, wherein the glass is coincidentally exposed, for an effective time interval, to (i) a source of high energy light and (ii) a heat source. The process reduces the relatively strong absorption peaks characteristic of the initially colored glass, resulting in a permanent bleached appearance.
REFERENCES:
patent: 3208860 (1962-07-01), Armistead et al.
patent: 3892582 (1975-07-01), Simms
patent: 3920463 (1975-11-01), Simms
patent: 4125404 (1978-11-01), Araujo et al.
patent: 4125405 (1978-11-01), Araujo et al.
patent: 4190451 (1980-02-01), Hares et al.
patent: 4240836 (1980-12-01), Borrelli et al.
patent: 4537612 (1985-08-01), Borrelli et al.
patent: 4757034 (1988-07-01), Prassas
N. F. Borrelli et al., "Photoinduced Optical Anisotrophy and Color Adaptation in Silver-Containing Glasses", Appl. Phys. Lett., 34 (6), pp. 375-397 (1979).
Borrelli Nicholas F.
Wedding Brent M.
Corning Glass Works
Kellogg Arthur
VAN DER Sterre Kees
LandOfFree
Method for making colored photochromic 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 Method for making colored photochromic glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making colored photochromic glasses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-523655