Patent ID: 8771348

Claim:
An ophthalmic lens comprised of: a central region disposed about an optical axis comprised of a diffractive pattern with multifocal diffractive power comprised of a first base power and at least one additional power that is the sum of the first base power and the at least one additional power; more than one intermediate region disposed about the central region with each intermediate region comprised of at least one power between the first base power of the central region and any of the at least one additional power of the central region, wherein the power within each intermediate region remains constant, and wherein the power between each intermediate region increases from at or near the first base power of the central region, plateaus at or near the at least one additional power of the central region, and then decreases back down toward the first base power, as distance from the central region increases, such that the power of the more than one intermediate region forms an “n” shape as a function of distance from the central region; and a peripheral region disposed about the outermost intermediate region comprised of a diffractive pattern with multifocal diffractive power comprised of the first base power of the central region and the same additional power(s) as the central region.