Methods for producing progressive addition lenses

Details Methods for producing progressive addition lenses Methods for producing progressive addition lenses

1999-05-20

2000-09-26

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351169, 351176, 264 18, G02C 702, G02C 706, B29D 1100

Patent

active

061234222

ABSTRACT:
The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to conventional progressive addition lenses. This result is achieved by combining two or more progressive addition surfaces, which surfaces in combination provide the dioptric add power of the lens.

REFERENCES:
patent: 3711191 (1973-01-01), Tagnon
patent: 4055379 (1977-10-01), Winthrop
patent: 4056311 (1977-11-01), Winhrop
patent: 4062629 (1977-12-01), Wnthrop
patent: 4253747 (1981-03-01), Maitenaz
patent: 4461550 (1984-07-01), Legendre
patent: 4806010 (1989-02-01), Ewer et al.
patent: 4859261 (1989-08-01), Ace
patent: 4906090 (1990-03-01), Barth
patent: 4946270 (1990-08-01), Guilino et al.
patent: 4952048 (1990-08-01), Frieder et al.
patent: 5178800 (1993-01-01), Blum
patent: 5219497 (1993-06-01), Blum
patent: 5305028 (1994-04-01), Okano
patent: 5771089 (1998-06-01), Barth
patent: 5793465 (1998-08-01), Gupta et al.
patent: 5844657 (1998-12-01), Shirayanagi

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