Lens design method and resulting aspheric lens

Details Lens design method and resulting aspheric lens Lens design method and resulting aspheric lens

G - Physics

02

B

G02B 3/02 (2006.01) G02C 7/02 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2047507

An aspheric lens for providing improved vision and a method for generating such a lens is described. The lens provides a sharp image focus while minimizing image aberrations. The method utilizes ray tracing techniques in conjunction with Modulation Transfer functions to accurately account for the total corrective lens-eye system. The lens may be in the form of a contact lens, an intraocular lens, a natural lens or a spectacle lens, and is suitable for correcting myopia, presbyopia, astigmatism and other focusing problems. The lens is characterized by a hyperbolic or parabolic surface which functions to reduce spherical aberrations and minimize the retinal image spot size.

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