Multiple layer multifocal composite lens

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks

Reexamination Certificate

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Details

C351S169000, C351S171000, C351S172000

Reexamination Certificate

active

07926941

ABSTRACT:
Aspects of the present invention provide multiple-layer (multi-layer) composite lenses comprising two or more materials and methods for making the same. A multi-layer composite lens of the present invention can use multiple surfaces (internal or external) to form optical elements that can contribute to a total desired add power. The multiple contributing optical elements can be aligned so as to be in optical communication to form multiple stable vision zones to enhance optical performance and the vision experience of the wearer. Distributing the total desired add power across multiple appropriately aligned optical elements that are in optical communication with one another can reduce the total distortion of the lens, minimize the number of optical discontinuities introduced, can reduce optical power jump as experienced by the wearer's eye when traversing any discontinuity, and can reduce the visibility of any introduced optical discontinuity as perceived by an observer looking at the wearer.

REFERENCES:
patent: 3248460 (1966-04-01), Naujokas
patent: 4062629 (1977-12-01), Winthrop
patent: 4190621 (1980-02-01), Greshes
patent: 4461550 (1984-07-01), Legendre
patent: 4869588 (1989-09-01), Frieder et al.
patent: 4873029 (1989-10-01), Blum
patent: 4952048 (1990-08-01), Frieder et al.
patent: 5147585 (1992-09-01), Blum
patent: 5178800 (1993-01-01), Blum
patent: 5219497 (1993-06-01), Blum
patent: 5305028 (1994-04-01), Okano
patent: 5512371 (1996-04-01), Gupta et al.
patent: 5702819 (1997-12-01), Gupta et al.
patent: 5856860 (1999-01-01), Bhalakia et al.
patent: 5859685 (1999-01-01), Gupta et al.
patent: 5861934 (1999-01-01), Blum et al.
patent: 6086203 (2000-07-01), Blum et al.
patent: 6139148 (2000-10-01), Menezes
patent: 6199984 (2001-03-01), Menezes
patent: 6242065 (2001-06-01), Bloomberg et al.
patent: 6270220 (2001-08-01), Keren
patent: 6652096 (2003-11-01), Morris et al.
patent: 6709107 (2004-03-01), Jiang et al.
patent: 6793340 (2004-09-01), Morris et al.
patent: 6859333 (2005-02-01), Ren et al.
patent: 6886938 (2005-05-01), Menezes
patent: 6918670 (2005-07-01), Blum et al.
patent: 7159981 (2007-01-01), Kato
patent: 7472993 (2009-01-01), Matsui
patent: 2003/0086056 (2003-05-01), Gupta et al.
patent: 2004/0233384 (2004-11-01), Gupta et al.
patent: 2005/0099596 (2005-05-01), Kato
patent: 2006/0066808 (2006-03-01), Blum et al.
patent: 2009/0091705 (2009-04-01), Matsui
patent: 2009/0268156 (2009-10-01), Ezekiel
patent: 0 578 833 (1994-01-01), None
patent: 7028002 (1995-01-01), None
patent: 2007-323062 (2007-12-01), None
patent: WO 93/21010 (1993-10-01), None
International Search Report of Application No. PCT/US08/86459 Mailed on Mar. 18, 2009.
International Search Report of Application No. PCT/US09/32086 Mailed on Mar. 13, 2009.

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