Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1988-12-21
1991-01-22
Teskin, Fred
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
350409, 360135, 346137, 369288, 526262, 526282, G02C 704, C08F22012
Patent
active
049866486
ABSTRACT:
An optical resin material comprising a polymer containing as an essential component at least one norbornyl acrylate or methacrylate or a derivative thereof is excellent in properties, particularly in moisture resistance and can be used for molding optical elements such as lenses, optical discs, etc.
REFERENCES:
patent: 3243416 (1966-03-01), Caldwell et al.
Fujita Toshiyuki
Hosoi Yutaka
Kawai Hiromasa
Kobayashi Akihiro
Saito Takayuki
Hitachi Chemical Company Ltd.
Teskin Fred
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