Progressive lens with reduced distortion

Details Progressive lens with reduced distortion Progressive lens with reduced distortion

G - Physics

02

C

G02C 7/06 (2006.01) G02C 7/02 (2006.01)

Patent

CA 2477436

A progressive spectacle lens design has clear focal properties in the entire lens, and progressive variation in focal properties from the cener of the lens down into a reading area. All current conventional progressive lenses have areas of distortion to the side of the reading area. The present invention provides undistorted optical viewing throughout the entire lens, although the focal length varies.

L'invention concerne un modèle de verre de lunette présentant des propriétés focales nettes dans l'ensemble du verre et une variation progressive des propriétés focales entre le centre du verre en direction du bas, dans la zone de lecture. Tous les verres progressifs classiques actuels présentent des zones de distorsion en direction du côté de la zone de lecture. Ladite invention fournit une vision optique sans distorsion dans l'ensemble du verre, bien que la longueur focale varie.

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