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120 条记录 (耗时 0.048 秒)

    Prismatic intraocular lenses and related methods of in situ alteration of their optical characteristics
    21.
    发明授权
    Prismatic intraocular lenses and related methods of in situ alteration of their optical characteristics 失效
    棱镜型眼内透镜及其光学特性原位改变的相关方法

    公开(公告)号：US5728156A

    公开(公告)日：1998-03-17

    申请号：US693340

    申请日：1996-08-06

    申请人： Amitava Gupta ,  Ronald D. Blum

    发明人： Amitava Gupta ,  Ronald D. Blum

    IPC分类号： A61F2/16

    CPC分类号： A61F2/1648 ,  A61F2/1613 ,  A61F2/1627 ,  A61F2/1632 ,  A61F2/1656 ,  A61F2002/009

    摘要： Prismatic intraocular lenses are disclosed for restoring visual function to an eye having macular degeneration. The lenses each include a convex lens optic for receiving and focusing light rays, a prismatic wedge located posterior to the convex lens optic for receiving and directing light rays to a first portion of a retina of the eye, and means for in situ alteration of the optical characteristics of the intraocular lens to direct light rays to a second functional portion of the retina.

    摘要翻译： 公开了棱镜式眼内透镜用于将视觉功能恢复到具有黄斑变性的眼睛。 透镜各自包括用于接收和聚焦光线的凸透镜光学元件，位于凸透镜光学器后面的棱镜楔，用于接收和引导光线到眼睛的视网膜的第一部分，以及用于原位改变 眼内透镜的光学特性将光线引导到视网膜的第二功能部分。

    Polyvinyl pyridine microspheres
    23.
    发明授权
    Polyvinyl pyridine microspheres 失效
    聚乙烯吡啶微球

    公开(公告)号：US4224359A

    公开(公告)日：1980-09-23

    申请号：US947478

    申请日：1978-10-02

    申请人： Alan Rembaum ,  Amitava Gupta ,  Willi Volksen

    发明人： Alan Rembaum ,  Amitava Gupta ,  Willi Volksen

    IPC分类号： C08F2/46 ,  C08F226/06

    CPC分类号： C08F226/06 ,  Y10T428/252

    摘要： Microspheres are produced by cobalt gamma radiation initiated polymerization of a dilute aqueous vinyl pyridine solution. Addition of cross-linking agent provides higher surface area beads. Addition of monomers such as hydroxyethylmethacrylate acrylamide or methacrylamide increases hydrophilic properties and surface area of the beads. High surface area catalytic supports are formed in the presence of controlled pore glass substrate.

    摘要翻译： 微球通过稀释的乙烯基吡啶水溶液的钴γ射线引发聚合产生。 添加交联剂提供更高的表面积珠。 添加单体如甲基丙烯酸羟乙酯丙烯酰胺或甲基丙烯酰胺增加了珠的亲水性能和表面积。 在受控孔隙玻璃基板的存在下形成高表面积催化载体。

    Fluid lenses, lens blanks, and methods of manufacturing the same
    24.
    发明授权
    Fluid lenses, lens blanks, and methods of manufacturing the same 有权
    流体镜片，镜片坯料及其制造方法

    公开(公告)号：US09535264B2

    公开(公告)日：2017-01-03

    申请号：US13549078

    申请日：2012-07-13

    申请人： Amitava Gupta ,  Urban Schnell

    发明人： Amitava Gupta ,  Urban Schnell

    IPC分类号： G02C7/08 ,  B29D11/00

    CPC分类号： G02C7/085 ,  B29D11/00028 ,  B29D11/00298 ,  B29D11/0073 ,  Y10T156/108

    摘要： A lens blank for a fluid lens includes a rigid lens and a semi-flexible inflatable membrane attached to the rigid lens. The lens blank is divided into a cavity zone and a bonded zone. The cavity zone extends radially outward from a central area of the lens blank and a cavity is formed between the membrane and the rigid lens within the cavity zone. The bonded zone extends radially outward from the cavity zone and the membrane is bonded and fluidly sealed to the rigid lens throughout the bonded zone. The bonded zone is dimensioned to be trimmed to accommodate a plurality of frame shapes and sizes. Methods of manufacturing lens blanks are also provided. Arrays of lens blanks and fluid lenses are also provided.

    摘要翻译： 用于流体透镜的透镜毛坯包括刚性透镜和附接到刚性透镜的半柔性可充气膜。 镜片坯料分为空腔区和粘合区。 空腔区域从透镜毛坯的中心区域径向向外延伸，并且在空腔区域内的膜和刚性透镜之间形成空腔。 接合区域从空腔区域径向向外延伸，并且膜粘合并且在整个粘合区域中与刚性透镜流体密封。 接合区的尺寸被设计成被修整以容纳多个框架形状和尺寸。 还提供了制造镜片坯料的方法。 还提供了镜头毛坯和流体镜片的阵列。

    Electro-Active Lenses Including Thin Glass Substrates
    26.
    发明申请
    Electro-Active Lenses Including Thin Glass Substrates 有权
    包括薄玻璃基板的电活性透镜

    公开(公告)号：US20130027655A1

    公开(公告)日：2013-01-31

    申请号：US13488064

    申请日：2012-06-04

    申请人： Ronald Blum ,  Amitava Gupta ,  William Kokonaski ,  Venkatramani Iyer

    发明人： Ronald Blum ,  Amitava Gupta ,  William Kokonaski ,  Venkatramani Iyer

    IPC分类号： G02F1/29 ,  G02F1/133

    CPC分类号： G02C7/083

    摘要： An electro-active optical cell is described including a layer of electro-active material, a front glass substrate member, and a back glass substrate member. The optical cell is capable of independently providing changeable optical power with the application of an electrical potential. The cell is also configured to be affixed to an external surface of a plastic substrate and to provide the changeable optical power, with at least one of the front substrate or the back substrate of the optical cell being an outermost optical layer. The layer of electro-active material may have a thickness less than 10 μm, and the glass substrate members may each have a thickness approximately between 20 μm and 500 μm.

    摘要翻译： 描述了一种电活性光电池，其包括电活性材料层，前玻璃基板部件和后玻璃基板部件。 光电池能够独立地提供具有电位的可变光功率。 电池还被配置为固定到塑料基板的外表面并且提供可变光学功率，光学单元的前基板或后基板中的至少一个是最外的光学层。 电活性材料层的厚度可以小于10μm，玻璃基板的厚度可以分别为20μm〜500μm左右。

    Full Field Membrane Design for Non-Round Liquid Lens Assemblies
    27.
    发明申请
    Full Field Membrane Design for Non-Round Liquid Lens Assemblies 有权
    非圆形液体透镜组件的全场膜设计

    公开(公告)号：US20120243106A1

    公开(公告)日：2012-09-27

    申请号：US13407416

    申请日：2012-02-28

    申请人： Amitava Gupta ,  Urban Schnell ,  Karim Haroud ,  Hans Jaeger ,  Lisa Nibauer ,  William Egan ,  Stefan Troller ,  Julien Sauvet ,  Christian Oggenfuss

    发明人： Amitava Gupta ,  Urban Schnell ,  Karim Haroud ,  Hans Jaeger ,  Lisa Nibauer ,  William Egan ,  Stefan Troller ,  Julien Sauvet ,  Christian Oggenfuss

    IPC分类号： G02B3/12 ,  G02B3/02 ,  G02B3/04

    CPC分类号： G02B3/12 ,  G02B3/14 ,  G02C7/085 ,  G06F17/5018

    摘要： An optical and mechanical design of a sealed, non-round fluid-filled lens capable of providing variation of optical power. The fluid lens includes at least three optical components: at least one mostly rigid optical disc, at least one mostly flexible optical membrane and a layer of a transparent fluid that is in communication via a fluid channel with a reservoir of excess fluid contained in a reservoir that can be accessed to augment the fluid volume inside the fluid lens to change the power of the fluid lens. The fluid lens is capable of providing correction of spherical and astigmatic errors, and utilizes contoured membranes to provide for a substantially constant desired spherical power over a substantially full field of view of a user.

    摘要翻译： 密封的非圆形流体充满透镜的光学和机械设计，能够提供光功率的变化。 流体透镜包括至少三个光学部件：至少一个大致刚性的光盘，至少一个主要柔性的光学膜和透明流体层，该透明​​流体通过流体通道与容纳在储存器中的过量流体的储存器连通 可以访问以增加流体透镜内的流体体积以改变流体透镜的功率。 流体透镜能够提供球面和散光误差的校正，并且利用轮廓膜在用户的基本上全视场上提供基本恒定的期望球面光焦度。

    METHOD FOR DESIGNING MULTIFOCAL CONTACT LENSES
    30.
    发明申请
    METHOD FOR DESIGNING MULTIFOCAL CONTACT LENSES 有权
    设计多功能接触镜片的方法

    公开(公告)号：US20080100798A1

    公开(公告)日：2008-05-01

    申请号：US11554105

    申请日：2006-10-30

    申请人： Amitava Gupta ,  Susan W. Neadle

    发明人： Amitava Gupta ,  Susan W. Neadle

    IPC分类号： G02C7/04

    CPC分类号： G02C7/044 ,  G02C7/027 ,  G02C7/042

    摘要： The invention provides methods for designing contact lenses that takes into account pupil size and vergence. The lenses of the invention augment the eye's accommodative gain and take advantage of the eye's residual accommodation amplitude.

    摘要翻译： 本发明提供了考虑到瞳孔大小和聚集度的隐形眼镜的设计方法。 本发明的镜片增加了眼睛的调节增益，并且利用了眼睛的剩余调节幅度。