Optical filter

Details Optical filter Optical filter

1984-06-05

1987-03-17

Schofer, Joseph L.

Compositions

Light transmission modifying compositions

Ultraviolet

252582, 252588, 350311, 350438, F21V 904

Patent

active

046506055

ABSTRACT:
Polyol(allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate), containing 1,4-dihydroxy anthraquinone in amounts sufficient to selectively absorb at least 94 percent of the visible and ultraviolet light segments of the electromagnetic spectrum below 530 nanometers is described. Also described are ophthalmic articles prepared by curing the monomer.

REFERENCES:
patent: 1886237 (1932-11-01), Rogers et al.
patent: 2003859 (1935-06-01), Lee
patent: 3309220 (1967-03-01), Osteen
patent: 3382183 (1968-05-01), Donoian
patent: 3574128 (1971-04-01), King
patent: 3826751 (1974-07-01), Laliberte
patent: 4043637 (1977-08-01), Hovey
patent: 4297267 (1981-10-01), Leatherman
Colour Index, vol. 4, p. 4515, 3rd Ed. (1971).

Affiliated with

Also associated with

Rating

Optical filter 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 filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787293