Progressive power ophthalmic lenses

Details Progressive power ophthalmic lenses Progressive power ophthalmic lenses

G - Physics

02

C

88/38

G02C 7/00 (2006.01) G02C 7/02 (2006.01)

Patent

CA 1153228

AO-3676 BWP:cm PROGRESSIVE POWER OPHTHALMIC LENSES ABSTRACT An ophthalmic lens for the correction of presbyopia having a progressive power surface generated by the line of intersection of an ordered sequence of intersecting spheres and cylinder surfaces, the cylinder surfaces being so chosen as to produce a uniform distribution of aberration and optical power for gently curving smooth optical effect.

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