Monofocal ophthalmic lens having two aspherical surfaces

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United States of America Patent

PATENT NO 6231182
SERIAL NO

09469618

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A monofocal ophthalmic lens having a front and a rear surface, each of which is aspherical, of which at least one surface has identical radii of principle curvature in the apex. The average surface refracting power of at least one of the front and rear surfaces is defined by the formula: B.sub.f =(n-1)/2*(1/R.sub.1 +1/R.sub.2) wherein n: is the refractive index of the lens medium, R.sub.1 : is the radius of principle curvature 2 in a point of at least one of the front and rear surfaces in a first principle plane, and R.sub.2 : is the radius of principle curvature 2 in the point of the at least one in the front and rear surfaces in a second principle plane, and wherein the average surface refracting power of points on the at least one of the front and rear surfaces is the function of the distance h at constant azimuthal angle of .OMEGA. of each point from the apex, and the function includes an extreme value and/or a value 0.

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Patent Owner(s)

Patent OwnerAddress
SECOND OPTICAL HOLDING GMBHISARTALSTR 43 D-80469 MUNCHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Altheimer, Helmut Baisweil, DE 72 512
Esser, Gregor Haar, DE 70 436
Guilino, Gunther Munich, DE 12 318
Haimerl, Walter Munich, DE 33 194
Pfeiffer, Herbert Munich, DE 30 238

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