公开(公告)号：US08709079B2

公开(公告)日：2014-04-29

申请号：US12780381

申请日：2010-05-14

Applicant: Xiaoxiao Zhang ,  Costin Eugene Curatu ,  Krishnakumar Venkateswaran ,  Daniel Robert Carson ,  Mutlu Karakelle ,  Xin Hong ,  Yueai Liu

Inventor： Xiaoxiao Zhang ,  Costin Eugene Curatu ,  Krishnakumar Venkateswaran ,  Daniel Robert Carson ,  Mutlu Karakelle ,  Xin Hong ,  Yueai Liu

IPC: A61F2/16 ,  G02C7/00

CPC classification number: A61F2/1654 ,  A61F2/1613 ,  G02C7/041 ,  G02C2202/20 ,  G02C2202/22

Abstract: An ophthalmic lens includes an optical filter operable to filter out at least visible light having a wavelength less than 450 nm. The lens also includes a first diffractive structure adapted to produce a focus for visible light in a first wavelength range above 550 nm and to reduce longitudinal chromatic aberration to less than one diopter for incoming visible light in the first wavelength range. The lens also includes a second diffractive structure outside the first diffractive structure in a radial direction and adapted to produce a focus for visible light in a second wavelength range between 450 nm and 550 nm. The second diffractive structure is also adapted to reduce longitudinal chromatic aberration for incoming visible light in the second wavelength range to less than one diopter while allowing longitudinal chromatic aberration in the first wavelength range in an amount greater than the first diffractive structure.

Abstract translation: 一种眼科镜片包括可用于过滤掉至少具有小于450nm的波长的可见光的滤光器。 透镜还包括第一衍射结构，其适于产生在550nm以上的第一波长范围内的可见光的焦点，并且将纵向色差减小到在第一波长范围内的入射可见光的小于一个屈光度。 透镜还包括在径向上的第一衍射结构外部的第二衍射结构，并且适于产生在450nm和550nm之间的第二波长范围内的可见光的焦点。 第二衍射结构还适于将在第二波长范围内的入射可见光的纵向色差减小到小于一个屈光度，同时允许第一波长范围内的纵向色差大于第一衍射结构的量。

公开(公告)号：US20100312337A1

公开(公告)日：2010-12-09

申请号：US12780381

申请日：2010-05-14

Applicant: Xiaoxiao Zhang ,  Costin Eugene Curatu ,  Krishnakumar Venkateswaran ,  Daniel Robert Carson ,  Mutlu Karakelle ,  Xin Hong ,  Yueai Liu

Inventor： Xiaoxiao Zhang ,  Costin Eugene Curatu ,  Krishnakumar Venkateswaran ,  Daniel Robert Carson ,  Mutlu Karakelle ,  Xin Hong ,  Yueai Liu

IPC: A61F2/16 ,  G02C7/10

CPC classification number: A61F2/1654 ,  A61F2/1613 ,  G02C7/041 ,  G02C2202/20 ,  G02C2202/22

Abstract: An ophthalmic lens includes an optical filter operable to filter out at least visible light having a wavelength less than 450 nm. The lens also includes a first diffractive structure adapted to produce a focus for visible light in a first wavelength range above 550 nm and to reduce longitudinal chromatic aberration to less than one diopter for incoming visible light in the first wavelength range. The lens also includes a second diffractive structure outside the first diffractive structure in a radial direction and adapted to produce a focus for visible light in a second wavelength range between 450 nm and 550 nm. The second diffractive structure is also adapted to reduce longitudinal chromatic aberration for incoming visible light in the second wavelength range to less than one diopter while allowing longitudinal chromatic aberration in the first wavelength range in an amount greater than the first diffractive structure.

Abstract translation: 一种眼科镜片包括可用于过滤掉至少具有小于450nm的波长的可见光的滤光器。 透镜还包括第一衍射结构，其适于产生在550nm以上的第一波长范围内的可见光的聚焦，并且将纵向色差减小到在第一波长范围内的入射可见光的小于一个屈光度。 透镜还包括在径向上的第一衍射结构外部的第二衍射结构，并且适于产生在450nm和550nm之间的第二波长范围内的可见光的焦点。 第二衍射结构还适于将在第二波长范围内的入射可见光的纵向色差减小到小于一个屈光度，同时允许第一波长范围内的纵向色差大于第一衍射结构的量。

公开(公告)号：US20100131060A1

公开(公告)日：2010-05-27

申请号：US12621613

申请日：2009-11-19

Applicant: Michael J. Simpson ,  Krishnakumar Venkateswaran

Inventor： Michael J. Simpson ,  Krishnakumar Venkateswaran

IPC: A61F2/16

CPC classification number: A61F2/1618 ,  A61F2/1654 ,  G02C7/041 ,  G02C2202/20

Abstract: The present invention generally provides multifocal ophthalmic lenses, e.g., multifocal intraocular lenses, that employ a central refractive region for providing a refractive focusing power and a diffractive region for providing diffractive focusing powers. The refractive focusing power provided by the lens's central region corresponds to a far-focusing power that is substantially equal to one of the diffractive focusing powers while the other diffractive power corresponds to a near-focusing power. The far-focusing power can be enhanced by changes to the phase of the central refractive region and/or changes to the curvature of the central refractive region.

Abstract translation: 本发明通常提供多焦点眼科镜片，例如多焦点眼内透镜，其使用用于提供折射聚焦功能的中心折射区域和用于提供衍射聚焦光焦度的衍射区域。 由透镜的中心区域提供的折射聚焦功率对应于基本上等于衍射聚焦光焦度之一的远焦点光焦度，而另一衍射光焦度对应于近聚焦光焦度。 可以通过改变中心折射区域的相位和/或改变中心折射区域的曲率来增强远聚焦功率。