Progressive power lens and method of designing the same

Details Progressive power lens and method of designing the same Progressive power lens and method of designing the same

2011-01-25

2011-01-25

Sugarman, Scott J (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S177000

Reexamination Certificate

active

07874673

ABSTRACT:
A progressive power lens that prevents degradation in optical characteristics invited by deviation of a pantoscopic angle from the standard value. The lens includes an outer refractive surface and an inner refractive surface, at least one of which is a progressive surface. Because the amount and direction of aberrations generated in distance and near portions are different, correction is given to either or both of the surface powers of the outer and inner surfaces of the lens such that the distance and near portions are differently corrected.

REFERENCES:
patent: 6199983 (2001-03-01), Kato et al.
patent: 6685316 (2004-02-01), Baumbach et al.
patent: 6832834 (2004-12-01), Haimerl et al.
patent: 7033024 (2006-04-01), Fendt et al.
patent: 7070274 (2006-07-01), Kamishita et al.
patent: 7159981 (2007-01-01), Kato
patent: 2009/0290125 (2009-11-01), Varnas et al.
patent: 1582909 (2005-10-01), None
patent: WO 98/16862 (1998-04-01), None
patent: WO 01/57584 (2001-08-01), None
patent: WO 2005/092173 (2005-10-01), None
patent: 2006116820 (2006-11-01), None
D. Meister et al., “Progress in the spectacle correction of presbyopia. Part 2: Modern progressive lens technologies” Clin Exp Optom, vol. 91, No. 3, pp. 251-264, 2008.
Michael Keating, “Oblique Central Refraction in Spherocylindrical Corrections with Both Faceform and Pantoscopic Tilt” Optometry & Vision Science, vol. 72, No. 4, pp. 258-265, 1995.
European search report dated Jun. 8, 2010 for corresponding European application 10158349.0 lists the references above.

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