中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

188 records (took 0.031 seconds)

    Low-temperature fabrication of glass optical components
    122.
    发明授权
    Low-temperature fabrication of glass optical components 有权
    玻璃光学元件的低温制造

    公开(公告)号：US07143609B2

    公开(公告)日：2006-12-05

    申请号：US10283402

    申请日：2002-10-29

    Applicant: Bruce G Aitken ,  Dilip K Chatterjee ,  Daniel H Raguin

    Inventor： Bruce G Aitken ,  Dilip K Chatterjee ,  Daniel H Raguin

    IPC: C03B23/00 ,  C03C3/32

    CPC classification number: G02B5/045 ,  C03B11/082 ,  C03B11/086 ,  C03B19/06 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2215/16 ,  C03B2215/17 ,  C03B2215/41 ,  C03B2215/412 ,  C03B2215/414 ,  C03B2215/60 ,  C03C3/32 ,  C03C17/22 ,  C03C2217/77 ,  G02B3/0031 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/06 ,  Y02P40/57

    Abstract: A method is provided for molding from glass certain complex optical components, such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. Thereby, mold masters or patterns, which define the profile of the optical components, made on metal alloys, particularly titanium or nickel alloys, or refractory compositions, with or without a non-reactive coating are used. Given that molding optical components from oxide glasses has numerous drawbacks, it has been discovered in accordance with the invention that non-oxide glasses substantially eliminates these drawbacks. The non-oxide glasses, such as chalcogenide, chalcohalide, and halide glasses, may be used in the mold either in bulk, planar, or power forms. In the mold, the glass is heated to about 10–110° C., preferably about 50° C., above its transition temperature (Tg), at which temperature the glass has a viscosity that permits it to flow and conform exactly to the pattern of the mold.

    Abstract translation: 提供了一种用于从玻璃模制某些复合光学部件的方法，诸如透镜，微透镜，微透镜阵列，以及具有适合于光学或电光学应用的精细或超细微结构的光栅或表面浮雕扩散器。 因此，使用限定在具有或不具有非反应性涂层的金属合金，特别是钛或镍合金或耐火材料组合物上制成的光学部件的轮廓的模具主体或图案。 鉴于来自氧化物玻璃的成型光学部件具有许多缺点，根据本发明已经发现，非氧化物玻璃基本上消除了这些缺点。 非氧化物玻璃，例如硫族化物，卤化铝和卤化物玻璃可以以体积，平面或电力形式用于模具中。 在模具中，将玻璃加热至约10-110℃，优选约50℃，高于其转变温度（Tg），在该温度下，玻璃具有允许其流动并准确地符合 模具图案。

    Optical fiber with micro-structured cladding
    123.
    发明授权
    Optical fiber with micro-structured cladding 有权
    具有微结构包层的光纤

    公开(公告)号：US07072552B2

    公开(公告)日：2006-07-04

    申请号：US11004344

    申请日：2004-12-02

    Applicant: Upendra H. Manyam ,  Kanishka Tankala

    Inventor： Upendra H. Manyam ,  Kanishka Tankala

    IPC: G02B6/02

    CPC classification number: C03B37/0279 ,  C03B37/02754 ,  C03B37/02763 ,  C03B37/02781 ,  C03B2201/31 ,  C03B2201/60 ,  C03B2201/70 ,  C03B2201/80 ,  C03B2201/86 ,  C03B2203/14 ,  C03B2203/18 ,  C03B2203/42 ,  G02B6/02357 ,  G02B6/032 ,  G02B6/0365

    Abstract: An optical fiber having a length can include a core and at least one cladding disposed about the core, where the one cladding can comprise at least first volumetric regions having a first refractive index n1 and second volumetric regions having a second refractive index n2, different from n1, and the first and second volumetric regions in any cross-section taken through the fiber can be randomly intermingled with one another, where the random intermingling of the first and second volumetric regions changes with changes in the location of the cross-section along the length of the fiber.

    Abstract translation: 具有长度的光纤可以包括芯和围绕芯设置的至少一个包层，其中一个包层可以包括具有第一折射率n 1的第一体积区域和具有第一体积区域的第二体积区域， 与n 1不同的第二折射率n 2，以及通过光纤的任何横截面中的第一和第二体积区域可以彼此随机地混合， 其中第一和第二体积区域的随机混合随着沿着纤维长度的横截面位置的变化而改变。

    Multi heating zone apparatus and process for making core/clad glass fibers
    130.
    发明授权
    Multi heating zone apparatus and process for making core/clad glass fibers 有权
    多层加热区设备及制造核心/复合玻璃纤维的工艺

    公开(公告)号：US06526782B1

    公开(公告)日：2003-03-04

    申请号：US09964548

    申请日：2001-09-28

    Applicant: Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

    Inventor： Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

    IPC: C03B37022

    CPC classification number: C03B37/023 ,  C03B2201/86 ,  C03C3/321 ,  C03C13/043

    Abstract: This invention pertains to apparatus and process for making core/clad glass fibers. The apparatus includes a central tube or receptacle connected at the top to a pressure controller and terminating in a reduced section; a side tube or receptacle positioned at about the level of the upper portion of the central tube; an outer tube or receptacle disposed around the bottom portion of the central tube terminating in a smaller section which is concentric with and spaced directly below the section of the central tube; a side arm connecting the side tube and the outer tube; and furnaces around the side, outer, and the reduced sections of the central and the outer tubes. The process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod, softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened clad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

    Abstract translation: 本发明涉及制造芯/复合玻璃纤维的装置和方法。 该设备包括中央管或插座，其在顶部连接到压力控制器并终止于减小的部分; 位于中心管的上部的高度的侧管或容器; 设置在中心管的底部周围的外管或容器，其终止于与中心管的截面同心并间隔开的较小部分; 连接侧管和外管的侧臂; 并围绕中心管和外管的侧面，外部和还原部分进行熔炼。 该方法包括以下步骤：将固体芯玻璃棒放置在可以在芯玻璃棒中引起结晶的热温度的点处，将固体包覆玻璃棒设置在从芯玻璃棒上移除的点上，软化成流动条件 固体包覆玻璃棒，将软化的包覆玻璃转移到较低点，软化的复合玻璃具有中空空隙，将软化的包覆玻璃加热到其结晶温度以上，将软化的包覆玻璃冷却至拉伸温度，将固体核 将玻璃棒插入软化的包层玻璃中的中心空隙中，使来自软化和冷却的包覆玻璃的热量将固体芯玻璃棒软化成流动状态，并且通过使包层和芯玻璃流动 以纤维的形式。

Patent Agency Ranking