Patent ID: 7717552

Claim:
A pair of adjustable focus eyeglasses comprising: A) an adjustable focus left lens unit comprising a left front lens element and a left rear lens element, said left front lens element having at least one specially designed complementary surface defining a front left varying lens thickness, and said left rear lens element having at least one specially designed complementary surface, defining a rear left varying lens thickness complementary to said front left varying lens thickness, such that adjustments of relative angular positions of said left front and said left rear lens elements about a left lens pivot location outside of both the left front and left rear lens elements in an angular direction perpendicular or approximately perpendicular to a viewing direction results in changes in the combined focusing power of the left lens unit; B) an adjustable focus right lens unit comprising a right front lens element and a right rear lens element, said right front lens element having at least one specially designed complementary surface, defining a front right varying lens thickness, and said right rear lens element having at least one specially designed complementary surface, defining a rear right varying lens thickness complementary to said front right varying lens thickness, such that adjustments of relative angular positions of said right front and said right rear lens elements about a right lens pivot location outside of both the right front and right rear lens elements in an angular direction perpendicular or approximately perpendicular to a viewing direction results in changes in the combined focusing power of the right lens unit; C) an eyeglasses frame for holding said left and right adjustable focus lens units in place in front of a user's eyes and permitting focus adjustment of said lens units comprising: i. two ear support elements, ii. a nose piece, iii. at least one pivot mechanism adapted for pivoting at least one lens element in said right lens unit about said right lens pivot location and pivoting at least one lens element in said left lens unit about said left lens pivot location.