Methods for tailoring the refractive index of lenses

    公开(公告)号:US10254562B2

    公开(公告)日:2019-04-09

    申请号:US15068396

    申请日:2016-03-11

    Abstract: Methods and devices for altering the power of a lens, such as an intraocular lens, are disclosed. In one method, the lens comprises a single polymer matrix containing crosslinkable pendant groups, wherein the polymer matrix increases in volume when crosslinked. The lens does not contain free monomer. Upon exposure to ultraviolet radiation, crosslinking causes the exposed portion of the lens to increase in volume, causing an increase in the refractive index. In another method, the lens comprises a polymer matrix containing photobleachable chromophores. Upon exposure to ultraviolet radiation, photobleaching causes a decrease in refractive index in the exposed portion without any change in lens thickness. These methods avoid the need to wait for diffusion to occur to change the lens shape and avoid the need for a second exposure to radiation to lock in the changes to the lens.

    Uniform Heat Distribution in Resistive Heaters For Anti-Icing and De-Icing
    68.
    发明申请
    Uniform Heat Distribution in Resistive Heaters For Anti-Icing and De-Icing 审中-公开
    电阻加热器的均匀热分布用于防结冰和除冰

    公开(公告)号:US20160221680A1

    公开(公告)日:2016-08-04

    申请号:US14988742

    申请日:2016-01-05

    Abstract: The concept of the present invention describes configurations to provide uniform heat distribution of resistive heaters. This configuration allows successful anti-icing and deicing with relatively low applied power. One aspect involves the use of a thin film heater applied just underneath the topcoat to efficiently direct all heat to the surface, allowing anti-icing and de-icing with minimal power. This can be accomplished by employing a hybrid electrode interface, using a metal foil or metal braid that is attached to the aircraft surface with a structural adhesive that has been smoothed along the edges with metal-filled adhesive. Another aspect of the present invention uses an array of heater cells created as a single sheet and a heat spreading material, provided underneath or overtop of the heater cells.

    Abstract translation: 本发明的概念描述了提供电阻加热器的均匀热分布的构造。 该配置允许以相对低的施加功率成功地实现防冰和除冰。 一个方面涉及使用刚好在顶涂层下方的薄膜加热器来有效地将所有热量引导到表面,从而以最小的功率进行防冰和除冰。 这可以通过使用混合电极界面,使用金属箔或金属编织物来实现,所述金属箔或金属编织物具有通过金属填充的粘合剂沿着边缘平滑的结构粘合剂附接到飞行器表面。 本发明的另一个方面是使用一个加热器单元阵列,该加热器单元被形成为单个片材,并且设置在加热器单元的下面或顶部的散热材料。

    METHODS FOR TAILORING THE REFRACTIVE INDEX OF LENSES
    70.
    发明申请
    METHODS FOR TAILORING THE REFRACTIVE INDEX OF LENSES 审中-公开
    用于定制镜片折射率的方法

    公开(公告)号:US20160195735A1

    公开(公告)日:2016-07-07

    申请号:US15068396

    申请日:2016-03-11

    Abstract: Methods and devices for altering the power of a lens, such as an intraocular lens, are disclosed. In one method, the lens comprises a single polymer matrix containing crosslinkable pendant groups, wherein the polymer matrix increases in volume when crosslinked. The lens does not contain free monomer. Upon exposure to ultraviolet radiation, crosslinking causes the exposed portion of the lens to increase in volume, causing an increase in the refractive index. In another method, the lens comprises a polymer matrix containing photobleachable chromophores. Upon exposure to ultraviolet radiation, photobleaching causes a decrease in refractive index in the exposed portion without any change in lens thickness. These methods avoid the need to wait for diffusion to occur to change the lens shape and avoid the need for a second exposure to radiation to lock in the changes to the lens.

    Abstract translation: 公开了用于改变诸如人工晶状体的透镜的功率的方法和装置。 在一种方法中,透镜包含含有可交联侧基的单一聚合物基质,其中当交联时聚合物基体的体积增加。 镜头不含有游离单体。 当暴露于紫外线辐射时,交联使得透镜的暴露部分体积增加,导致折射率增加。 在另一种方法中,透镜包含含有可光漂白的发色团的聚合物基质。 在紫外线照射下,光漂白导致曝光部分的折射率降低,透镜厚度没有变化。 这些方法避免了等待发生扩散以改变透镜形状的需要,并且避免了第二次暴露于辐射以锁定透镜变化的需要。

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