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    • 52. 发明公开
    • MULTIFOCAL LENS
    • MULTIFOKALE LINSE
    • EP2564265A1
    • 2013-03-06
    • EP11716259.4
    • 2011-04-26
    • Carl Zeiss Meditec AG
    • FIALA, WernerGERLACH, Mario
    • G02C7/04G02C7/06
    • G02C7/041G02C7/06G02C2202/20
    • The present invention relates to a multifocal lens (13, 18, 24) with a number n > 2 of principal powers, wherein at least one principal power is refractive and at least one principal power is diffractive, including a first lens portion (15, 16, 23, 25, 26) having at least one first annular zone (6, 10, 10, 27, 28) and at least a second lens portion (15, 16, 23, 25, 26) having at least one second annular zone (6, 10, 10, 27, 28), wherein the zones (6, 10, 10, 27, 28) each have at least one main sub-zone (7, 11, 20, 29, 31) and at least one phase sub-zone (8, 12, 21, 30, 32), wherein for forming the n principal powers, a maximum of n - 1 lens portions (15, 16, 23, 25, 26) are combined, and an averaged refractive power of a zone (6, 10, 10, 27, 28) of the first lens portion (15, 16, 23, 25, 26) is equal to an averaged refractive power of a zone (6, 10, 10, 27, 28) of the second lens portion (15, 16, 23, 25, 26).
    • 多焦点透镜具有数量n> 2的主要光焦度,其中至少一个主光焦度是折射的,并且至少一个主光焦度是衍射的。 所述多焦点透镜包括具有至少一个第一环形区域和至少具有至少一个第二环形区域的至少第二透镜部分的第一透镜部分,其中所述区域各自具有至少一个主子区域和至少一个相位子区域 。 为了形成n个主要功率,最多组合n-1个透镜部分,并且第一透镜部分的区域的平均折射能力等于第二透镜部分的区域的平均折射能力。