Highly-refractive plastic lens

Details Highly-refractive plastic lens Highly-refractive plastic lens

1987-12-15

1989-03-14

Henderson, Christopher

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

526301, G02C 702

Patent

active

048120324

ABSTRACT:
A plastic lens formed from a copolymer of three components. A first component which is a vinyl monomer having a nucleus-halogen-substituted aromatic ring. A second component which is selected from at least one member of the group consisting of aliphatic diacrylate, dimethacrylate, triacrylate, and trimethacrylate. A third component is chosen from mono-acrylate or mono-methacrylate having a nucleus-halogen substituted aromatic ring. The components are present in the weight ratio of 20/15/0 to 85/80/60 weight percent, respectively.

REFERENCES:
patent: 4487904 (1984-12-01), Fukuda

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