Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1983-10-31
1985-02-12
Schor, Kenneth M.
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 3014, 65 32, 65 37, 350354, 501 13, C03C 326, C03C 2100
Patent
active
044989199
ABSTRACT:
Colored photochromic ophthalmic lenses are produced by combining a photochromic cap element having an integrally colored back surface with an ophthalmic crown base element having a prescription-ground back surface, the cap back and base element front surfaces having been finished to a matching standard base curvature, thus providing a cemented assembly exhibiting a selected combination of prescribed vision-correcting and light filtering properties.
REFERENCES:
patent: 990303 (1911-04-01), Shreiner
patent: 2382660 (1945-08-01), Penberthy
patent: 2675740 (1954-04-01), Barkley
patent: 3653750 (1972-04-01), Marx et al.
patent: 3656923 (1972-04-01), Garfinkel et al.
patent: 4170567 (1979-10-01), Chu et al.
patent: 4261656 (1981-04-01), Wu
patent: 4268134 (1981-05-01), Gulati et al.
patent: 4284686 (1981-08-01), Wedding
patent: 4422893 (1983-12-01), Duchateau et al.
Corning Glass Works
Schor Kenneth M.
van der Sterre K.
LandOfFree
Method for making colored photochromic prescription ophthalmic l 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 prescription ophthalmic l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making colored photochromic prescription ophthalmic l will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1387917