Progressive-power lens

Details Progressive-power lens Progressive-power lens

2005-08-23

2005-08-23

Schwartz, Jordan M. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C356S124000

Reexamination Certificate

active

06932474

ABSTRACT:
A progressive-power lens can be properly evaluated based on optical performance values of which definition methods are not unified, such as progressive zone length and addition diopter. In addition to commodity product specifying information11awhich specifies a trade name of a lens9, progressive zone length specifying information11bwhich specifies length of a progressive zone of the lens, material refractive index specifying information11cwhich specifies a material refractive index of the lens, and addition diopter specifying information11dwhich specifies addition diopter of the lens, definition method specifying information11eis inscribed on the progressive-power lens9. The definition methods of the aforesaid progressive zone length and the addition diopter are specified by the definition method specifying information11e.

REFERENCES:
patent: 4441795 (1984-04-01), Lobdell
patent: 5960550 (1999-10-01), Weir et al.
patent: 6088089 (2000-07-01), Reis
patent: 6655802 (2003-12-01), Zimmermann et al.
patent: 2004/0233385 (2004-11-01), Kitani et al.
patent: 1 225 441 (2002-07-01), None
patent: A 11-337887 (1999-12-01), None
patent: A 2000-28891 (2000-01-01), None
patent: A 2000-284234 (2000-10-01), None
patent: WO 98/28653 (1998-07-01), None

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