Patent ID: 7290877

Claim:
A multi-lens vision correction method and its apparatus thereof, that adopts a basic structure with a lens module comprised of a far lens and a near lens with an appropriate distance apart, and said far lens is a converging lens, and said near lens is a divergent lens, and said near lens compensates insufficient optical power for a normal naked eye and includes an excessive compensation value, and the optical power of said excessive compensation is a negative value, and the absolute value of said excessive compensation is over 0.2 Diopter, and the value of said far lens is DA>DBe/(xA*DBe−1), wherein DA is the optical power of said far lens with a unit in Diopter, DBe is an excessive optical power compensation value with a unit in Diopter of said near lens, xA is an optic center distance with a unit in meter of said far lens and an eye, and the smaller the distance between said near lens and said eye, the better is the effect, and the distance between the optic centers of said far lens and said near lens is controlled to be smaller than the reciprocal of the optical power of said far lens which is its focal length and substantially greater than 1 cm as well as greater than ten times of the distance between said near lens and the surface of said eye.