Wide field spherical lenses and protective eyewear

G - Physics – 02 – C

Patent

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Details

G02C 7/02 (2006.01) A61F 9/02 (2006.01) G02C 1/00 (2006.01)

Patent

CA 2425157

The present invention relates to novel ophthalmic lens elements (402, 404) and eyewear (400) having wide field of view, low distortion, improved astigmatism correction where required and enhanced eye protection properties. Series of lens elements have steeply curved spherical reference surfaces. The edged lenses of the series have approximately consistent aperture size, shape and hollow depth across a range of common prescriptions. Novel sunglasses, laser protection eyewear, and lens edgings, coatings, and frames are included in the invention.

La présente invention concerne des nouvelles lentilles ophtalmiques (402, 404) et une paire de lunettes (400) présentant un grand champ de vision, une faible distorsion, une correction astigmatique améliorée, lorsque nécessaire, et des propriétés de protection des yeux améliorées. La présente invention concerne des séries de lentilles présentant des surfaces de référence sphériques fortement courbées. Les lentilles taillées présentent une taille d'ouverture, une forme et une profondeur de cavité relativement uniformes dans la gamme des prescriptions courantes. Cette invention concerne également des nouvelles lunettes de soleil, des lunettes de protection laser ainsi que des procédés de débordage, de revêtement et de montage.

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