Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2006-01-10
2006-01-10
Sugarman, Scott J. (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
C351S044000, C351S049000
Reexamination Certificate
active
06984038
ABSTRACT:
An improved ten-layer performance polarized lens for sunglasses. The lens design maximizes the benefit to watermen, giving them a combination of outer hydrophobic overcoat to protect the lens from seawater and smudging, multi-layer dielectric mirror which further reduces glare and overall light transmission, two layers of high-contrast blue-blocking amber or color-discriminating grey ophthalmic CR-39™ plastic or polycarbonate, sandwiching a polarizing layer. The foregoing layers are arranged to provide a balanced light transmission profile optimum for use on the water in which 100% of UV-A & B light is absorbed to at least 400 nm. An alternative embodiment is described in which a Rugate filter is incorporated in place of or in addition to the multi-layer dielectric mirror. The resulting watermens' dielectric-mirrored sunglass lens reduces both overall light transmission and ocular photochemical damage, and is available in either high-contrast blue-light blocking amber or grey coloration.
REFERENCES:
patent: 4878748 (1989-11-01), Johansen et al.
patent: 5702819 (1997-12-01), Gupta et al.
patent: 6145984 (2000-11-01), Farwig
patent: 6220703 (2001-04-01), Evans et al.
patent: 6334680 (2002-01-01), Larson
Willard et al., Instrumental Methods of Analysis, 6th Edition, 1981, pp. 67-68.
NACL website, as archived from Oct. 8, 2000: http://web.archive.org/web/20001008003354/http://www.nac1.com/custom.htm obtained for WayBack Machine at www.archive.org.
Law Offices of Royal W. Craig
Sugarman Scott J.
LandOfFree
Waterman's sunglass lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Waterman's sunglass lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waterman's sunglass lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3551992