Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2005-11-15
2005-11-15
Sugarman, Scott J. (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
Reexamination Certificate
active
06964478
ABSTRACT:
A spectacle lens is provided with a region (distance portion) designed for viewing at greater distances and, in particular, “to infinity”, a region (near portion) designed for viewing at short distances and, in particular, “reading distances”, and a progression zone disposed between the distance portion and the near portion, in which the power of the spectacle lens increases from the value in the distance reference point located in the distance portion to the value at the near reference point located in the near portion along a line (principal meridian) curving towards the nose. The invention is marked by specific conditions for the astigmatic deviation and/or the mean “as worn” power being observed.
REFERENCES:
patent: 4606622 (1986-08-01), Fueeter et al.
patent: 5488442 (1996-01-01), Harsigny et al.
patent: 5784144 (1998-07-01), Kelch et al.
patent: 5992998 (1999-11-01), Pfeiffer et al.
patent: 6669337 (2003-12-01), Welk et al.
patent: 42 38 067 (1993-05-01), None
patent: 43 42 234 (1994-06-01), None
patent: 196 12 284 (1997-10-01), None
patent: 0 677 177 (2001-06-01), None
Altheimer Helmut
Awrath Norbert
Baumbach Peter
Brosig Jochen
Dorsch Rainer
Crowell & Moring LLP
Rodenstock GmbH
Sugarman Scott J.
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