Lensed-fiber with cascaded graded-index fiber chip configuration
    1.
    发明授权
    Lensed-fiber with cascaded graded-index fiber chip configuration 失效
    具有级联渐变折射率光纤芯片配置的光纤

    公开(公告)号:US5774607A

    公开(公告)日:1998-06-30

    申请号:US718375

    申请日:1996-09-27

    CPC classification number: G02B6/4203 G02B6/4206

    Abstract: A lensed-fiber including a single-mode fiber having a core and a cladding, a coreless fiber having a coreless isotropic refractive index and a convex surface at a first end thereof, and a square-law index fiber having a square-law index profile. The square-law index fiber is positioned between the single-mode fiber and the coreless fiber so as to connect an end of the single-mode fiber to a second end of the coreless fiber. The lensed-fiber may be arranged in a optical module facing an optical semiconductor element which emits a light beam to be propagated through the single-mode fiber.

    Abstract translation: PCT No.PCT / JP96 / 00398 Sec。 371日期1996年9月27日第 102(e)1996年9月27日PCT PCT 1996年2月22日PCT公布。 公开号WO96 / 26459 日期1996年8月29日包括具有芯和包层的单模光纤的透镜光纤,具有无芯各向同性折射率的无芯光纤和其第一端的凸面,以及具有 平方律索引。 平方律索引光纤位于单模光纤和无芯光纤之间,以将单模光纤的一端连接到无芯光纤的第二端。 透镜光纤可以布置在面向发射要通过单模光纤传播的光束的光学半导体元件的光学模块中。

    Lensed optical fiber and laser module
    2.
    发明授权
    Lensed optical fiber and laser module 有权
    激光光纤和激光模块

    公开(公告)号:US6130972A

    公开(公告)日:2000-10-10

    申请号:US239432

    申请日:1999-01-28

    CPC classification number: G02B6/4203 G02B6/4206

    Abstract: A lensed optical fiber and a semiconductor laser module, characterized in that first and second optical fibers, each including a core and a cladding, are connected to one end of a single-mode fiber, including a core and a cladding, in the order named. The core of the first optical fiber has a first square-low index distribution and a length substantially equal to 1/4 of the meandering period of light propagating through the core or an odd multiple thereof. The core of the second optical fiber has a second square-low index distribution and a meandering period different from that of the first optical fiber.

    Abstract translation: 一种透镜光纤和半导体激光器模块,其特征在于,每个包括芯和包层的第一和第二光纤被连接到包括芯和包层的单模光纤的一端,其命名为 。 第一光纤的纤芯具有第一正方形低折射率分布和基本上等于通过芯传播的光的曲折周期的+ E,fra 1/4 + EE的长度或其奇数倍。 第二光纤的纤芯具有与第一光纤不同的第二平方低折射率分布和曲折周期。

    Process For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid
    3.
    发明申请
    Process For Producing Unsaturated Aldehyde And/or Unsaturated Carboxylic Acid 有权
    生产不饱和醛和/或不饱和羧酸的方法

    公开(公告)号:US20130310604A1

    公开(公告)日:2013-11-21

    申请号:US13982808

    申请日:2012-01-16

    Abstract: There is provided a process for producing aerolein, acrylic acid, methacrolein, methacrylic acid in a safe and steady manner and in high yields, which avoids a phenomenon of occurrence of an abnormal reaction attributable to the fact that the temperature at a raw material gas outlet side becomes considerably higher than the temperature at a raw material gas inlet side, with regard to the temperature of a catalyst packed in a reaction tube at vapor-phase catalytic oxidation of propylene, isobutylene, or the like.In the process of using a reaction tube on which a plurality of catalyst layers formed in a raw material gas flow direction, a catalyst and a catalyst packing schedule are designed so that a relation between the raw material conversion rate at which the yield of the objective product becomes maximum and the raw material conversion rate at which a high and low correlation between maximum temperature of the catalyst layer present closest to a reaction gas inlet side Zin and maximum temperature of the catalyst layer present closest to a reaction gas outlet side Zout is reversed satisfies a specific condition of 0.5≦Cmax−Ccrs≦5, in which Cmax: a raw material conversion rate at which yield of the objective products becomes maximum; and Ccrs: a raw material conversion rate at which, when maximum temperature of the catalyst layer Zin is regarded as Tin, maximum temperature of the catalyst layer Zout is regarded as Tout, and the raw material conversion rate is changed, a high and low correlation between Tin and Tout is reversed.

    Abstract translation: 提供了以安全稳定的方式和高产率生产气溶胶,丙烯酸,甲基丙烯醛,甲基丙烯酸的方法,避免了由于原料气体出口处的温度导致的异常反应的发生现象 相对于在丙烯,异丁烯等的气相催化氧化反应管中填充的催化剂的温度,原料气体入口侧的温度显着高于原料气体入口侧的温度。 在使用在原料气体流动方向上形成有多个催化剂层的反应管的过程中,设计催化剂和催化剂填充进度,使得目的物的产率的原料转化率之间的关系 产物变得最大,并且最接近反应气体入口侧的催化剂层的最高温度和最接近反应气体出口侧的催化剂层的最高温度之间的高低相关性的原料转化率反转 满足0.5 @ Cmax-Ccrs @ 5的特定条件,其中Cmax:目标产物的产率变为最大的原料转化率; Ccrs:将催化剂层Zin的最高温度设为Tin时的原料转化率,将催化剂层Zout的最高温度设为Tout,将原料转化率变更为高,低相关 Tin和Tout之间是相反的。

    Filter bag for microbiological examination
    5.
    发明授权
    Filter bag for microbiological examination 失效
    滤袋用于微生物检测

    公开(公告)号:US4892832A

    公开(公告)日:1990-01-09

    申请号:US127651

    申请日:1987-12-02

    CPC classification number: G01N33/02 B01D35/00

    Abstract: There is here provided a convenient bag used at the time when microorganisms which adhere to a specimen containing a solid material are extracted with a saline solution and are then examined. In this bag, a filter sheet is stuck to plastic film sidewalls so as to extend from the opening inlet to the bottom portion of the sidewalls, so that the bag is divided into two chambers. A specimen and a saline solution are poured into one of the two chambers, and the resulting extract is taken out by a pipet from another chamber.

    Abstract translation: 这里提供了当用含有固体物质的样品附着的微生物用盐水溶液萃取时使用的方便的袋子,然后进行检查。 在该袋中,将过滤片粘贴到塑料膜侧壁上,以从侧壁的开口入口延伸到底部,使得袋被分成两个室。 将样品和盐水溶液倒入两个室中的一个,并且通过移液管从所述另一个室取出所得到的提取物。

    Producing acrolein and acrylic acid using a supported dual activity
molybdenum, iron, and bismuth based catalyst in a fixed bed
multitubular reactor
    6.
    发明授权
    Producing acrolein and acrylic acid using a supported dual activity molybdenum, iron, and bismuth based catalyst in a fixed bed multitubular reactor 失效
    在固定床多管反应器中使用支撑的双活性钼,铁和铋基催化剂生产丙烯醛和丙烯酸

    公开(公告)号:US6028220A

    公开(公告)日:2000-02-22

    申请号:US117461

    申请日:1998-07-28

    Abstract: The present invention concerns a method for producing acrolein and acrylic acid by carrying out vapor phase catalytic oxidation of propylene with molecular oxygen or a gas containing molecular oxygen using a oxidation catalysts comprising Mo, Bi and Fe as an essentially element and a fixed bed multitubular reactor, which comprisesa) using a plurality of supported catalysts having different activities, which was obtained, for example, by different calcination method in the production process of the supported catalysts,b) setting a catalyst layer in a reaction tube, which is formed by dividing it into plural portions in the tube axial direction, andc) arranging the aforementioned plural supported catalysts in such order that the activity becomes high toward the outlet from the inlet of the material gas in the reaction tube axial direction.According to the present invention, the generation of hot spot can be avoided and over oxidation reaction can be avoided and the acrolein and acrylic acid are produced constantly for a prolonged period of time.

    Abstract translation: PCT No.PCT / JP97 / 04402 Sec。 371日期:1998年7月28日 102(e)日期1998年7月28日PCT 1997年12月2日PCT PCT。 第WO98 / 24746号公报 日期1998年6月11日本发明涉及通过使用包含Mo,Bi和Fe作为基本元素的氧化催化剂,通过用分子氧或含有分子氧的气体进行丙烯的气相催化氧化来生产丙烯醛和丙烯酸的方法, 一种固定床多管反应器,其包括a)使用多种活性不同的负载催化剂,其通过例如在负载型催化剂的制备方法中通过不同的煅烧方法获得,b)将催化剂层设置在反应管 通过在管轴方向上分成多个部分而形成,以及c)按照反应管轴向从原料气体的入口出口的活性变高的顺序排列上述多个负载型催化剂。 根据本发明,可以避免产生热点,可以避免过度氧化反应,并且持续长时间地生产丙烯醛和丙烯酸。

    Process for regeneration of catalysts
    8.
    发明授权
    Process for regeneration of catalysts 失效
    催化剂再生方法

    公开(公告)号:US5716895A

    公开(公告)日:1998-02-10

    申请号:US867283

    申请日:1997-06-02

    CPC classification number: B01J27/285 B01J38/74

    Abstract: A simple and excellent process for the regeneration of heteropolyacid catalysts can be provided. A heteropolyacid catalyst, e.g. a phosphomolybdic acid catalyst, whose activity has been lowered can be regenerated by dissolving and/or suspending it in an aqueous medium and then treating with an inorganic ion-exchange material, e.g. crystalline antimonic acid.

    Abstract translation: 可以提供简单且优异的杂多酸催化剂再生方法。 杂多酸催化剂,例如 其活性降低的磷钼酸催化剂可以通过将其溶解和/或悬浮在水性介质中再生,然后用无机离子交换材料,例如, 结晶锑酸。

    Three-dimensional periodical structure, its manufacturing method, and method of manufacturing film
    9.
    发明授权
    Three-dimensional periodical structure, its manufacturing method, and method of manufacturing film 有权
    三维周期结构,其制造方法和制作方法

    公开(公告)号:US06852203B1

    公开(公告)日:2005-02-08

    申请号:US09402112

    申请日:1998-03-24

    CPC classification number: B82Y20/00 G02B6/12002 G02B6/1225 Y10T428/24165

    Abstract: A three-dimensional periodical structure whose period is about 1 μm or smaller is provided. At least two kinds of films which have two-dimensionally substantially periodical projections are successively formed in layers substantially periodical to construct structure which is substantially three-dimensionally periodical. For instance, the films are made of materials different in refractive index. The three-dimensional periodical structure whose period is about 1 μm or smaller can be obtained by a simple fabricating method. By this structure, the propagation of a wave with a specific wavelength in many solid angular directions including several axial directions parallel to the plane and the thickness direction of the layers can be cut off.

    Abstract translation: 提供了周期为1m或更小的三维周期结构。 至少两种具有二维基本上周期性的突起的膜基本周期地依次形成,以构造基本上三维周期的结构。 例如,膜由折射率不同的材料制成。 周期约为1um或更小的三维周期结构可以通过简单的制造方法获得。 通过这种结构,可以切断具有特定波长的波在许多固体角方向上的传播,包括平行于平面的几个轴向和层的厚度方向。

    Optical fiber having a lens formed at an end thereof
    10.
    发明授权
    Optical fiber having a lens formed at an end thereof 失效
    具有在其端部形成的透镜的光纤

    公开(公告)号:US5446816A

    公开(公告)日:1995-08-29

    申请号:US283959

    申请日:1994-08-01

    CPC classification number: G02B6/322 G02B6/2552 G02B6/4203

    Abstract: An optical fiber having a lens formed at an end thereof comprises a fiber body including a core and a cladding, and an incident light guide portion having a uniform refractive index and integrally formed at an end portion of the fiber body, wherein the incident light guide portion has a convex surface, and the core has a distal end located within the incident light guide portion at a position close to a focal point of the incident light guide portion. When the incident light guide portion is arranged in alignment with a light source such that an extremity of the convex surface of the incident light guide portion faces a light-emitting surface of the light source, assuming that an X-Y coordinate system is established wherein the X axis coincides with the optical axis of the fiber body and the Y axis coincides with a radius direction of the fiber body, the relationship expressed by the following equation is fulfilled: ##EQU1## where coordinates of the extremity of the convex surface of the incident light guide portion are (0, 0), coordinates of the light-emitting surface of the light source are (-k, 0), coordinates of the distal end of the core are (L, 0), coordinates of an incident point at which light from the light-emitting surface of the light source falls upon the convex surface of the incident light guide portion are (z, r), and the refractive index of the incident light guide portion is n. Accordingly, no phase difference of laser beams occurs when the optical fiber is connected to a semiconductor laser, making it possible to provide a high coupling efficiency optical fiber.

    Abstract translation: 具有在其端部形成的透镜的光纤包括具有芯和包层的纤维体和具有均匀折射率并且一体地形成在纤维体的端部的入射光导部,其中入射光导 所述芯具有位于所述入射光导部内的远端,所述远端位于所述入射光导部的焦点附近的位置。 当入射光导部分与光源对准地布置,使得入射光导部分的凸表面的末端面向光源的发光表面时,假设建立XY坐标系,其中X 轴与光纤体的光轴重合,Y轴与纤维体的半径方向一致,满足下式所表示的关系:入射光的凸面的末端的坐标 引导部分为(0,0),光源的发光面的坐标为(-k,0),芯的前端的坐标为(L,0),入射点的坐标为 来自入射光导部的凸面的光源的发光面的光为(z,r),入射导光部的折射率为n。 因此,当光纤连接到半导体激光器时,不会发生激光束的相位差,使得可以提供高耦合效率的光纤。

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