Plastic optical fiber, optical fiber cable and optical transmission device
    1.
    发明授权
    Plastic optical fiber, optical fiber cable and optical transmission device 有权
    塑料光纤,光缆和光传输装置

    公开(公告)号:US06606441B2

    公开(公告)日:2003-08-12

    申请号:US09891258

    申请日:2001-06-27

    IPC分类号: G02B602

    CPC分类号: G02B6/03622 G02B6/02033

    摘要: A plastic optical fiber includes having a first core, a second core having a different refractive index from the first core, disposed concentrically on the outside of the first core, and a clad disposed concentrically on the outside of the second core, wherein a ratio X (r1/r2) of a first core radius r1 to a second core radius r2 and a ratio Y (n2/n1) of a refractive index difference n2 between the second core and the clad to a refactive index difference n1 between the first core and the clad are in a range that satisfies the expressions Y≧−1.134X+1.0518 (1), and X≦−1.4842Y2+1.1097Y+0.7097 (2), and provided that Y

    摘要翻译: 一种塑料光纤包括具有第一芯,第二芯与第一芯的折射率不同的第二芯,同心地设置在第一芯的外侧,以及同心地设置在第二芯的外侧上的包层,其中X 第一纤芯半径r1至第二纤芯半径r2的第(r1 / r2)和第二纤芯与包层之间的折射率差n2与第一纤芯和包层之间的折射率差n1的比率Y(n2 / n1) 包层在满足表达式Y> = - 1.134X + 1.0518(1)和X <= - 1.4842Y2 + 1.1097Y + 0.7097(2)的范围内,并且条件是Y <0.4或X> = 0.76和 不排除X = 0.8和Y = 0.35以及X = 0.8和Y = 0.45的坐标对。 塑料光纤可以具有高传输功率和宽带宽。 电缆和光学传输装置可以各自包括该塑料光纤。

    Lens array, image sensor, information processor and information processing system comprising the image sensor
    4.
    发明授权
    Lens array, image sensor, information processor and information processing system comprising the image sensor 有权
    透镜阵列,图像传感器,包括图像传感器的信息处理器和信息处理系统

    公开(公告)号:US06654173B1

    公开(公告)日:2003-11-25

    申请号:US10111534

    申请日:2002-04-25

    IPC分类号: G02B2710

    摘要: An object of this invention is to provide a lens array in which the amount of light reaching the image forming surface is large and the variation in the amount of light is small. In order to achieve this object, the lens array comprises cylindrical graded index lenses of radius r0 wherein the refractive index continuously decreases from the center of the lens toward the periphery, said cylindrical graded index lenses are arranged in one line or plural lines with array pitch 2R, if R is R≧r0≧0.8R and if the refractive index profile of each graded index lens is approximated by n(r)2=n02{1−(g·r)2}, the overlapping degree m defined by m=X0/2R satisfies 1.05≦m≦1.2, wherein, said r is the distance from the optical axis, n(r) is refractive index at the distance r from the optical axis, n0 is the refractive index at the center, g is the refractive index profile constant, X0 is the radius of the field of view (X0=r1 cos(Z0&pgr;/P), r1 is the effective radius of the graded index lens, Z0 is the length of the graded index lenses, and P is the period length of the graded index lenses namely P=2&pgr;/g.

    摘要翻译: 本发明的目的是提供一种透镜阵列,其中到达图像形成表面的光量大并且光量的变化小。 为了实现该目的,透镜阵列包括半径为r0的圆柱形梯度折射率透镜,其中折射率从透镜的中心朝向周边连续地减小,所述圆柱形渐变折射率透镜以阵列间距排列成一行或多行 2R,如果R是R> = r0> = 0.8R,并且如果每个渐变折射率透镜的折射率分布近似为n(r)<2> = n0 {1-(gr)2) 由m = X0 / 2R定义的重叠度m满足1.05 <= m <= 1.2,其中,所述r为距离光轴的距离,n(r)为距离光轴r的折射率,n0为 中心的折射率,g是折射率分布常数,X0是视场的半径(X0 = r1 cos(Z0pi / P),r1是渐变折射率透镜的有效半径,Z0是长度 的等级折射率镜片,P是渐变折射率镜片的周期长度,即P = 2pi / g。

    Low chromatic aberration rod lens array, its unit and image scanner employing them
    5.
    发明授权
    Low chromatic aberration rod lens array, its unit and image scanner employing them 失效
    低色差棒透镜阵列,其单元和图像扫描仪采用它们

    公开(公告)号:US06449414B1

    公开(公告)日:2002-09-10

    申请号:US09297061

    申请日:1999-04-29

    IPC分类号: G02B618

    摘要: A color image scanner is constructed by a three primary color LED array (4) for illuminating an original (2) to be read out, a monochromatic image sensor array (3) and a rod lens array (1) disposed between the original (1) and the image sensor array (3). The focusing parameters of the three kinds of refractive index distribution type rod lenses (11, 12, 13) constituting the rod lens array (1) are set so that each of the operating wavelength band and the predetermined wavelength is different among the kinds, the lens length Zo is equal among the kinds, and the conjugate length TC at each predetermined wavelength is substantially equal among all the kinds. Accordingly, when a color image reading operation is carried out by using the rod lens array which is effective in compactness and brightness, the chromatic aberration of the rod lens array can be sufficiently reduced and high-resolution can be implemented at low cost.

    摘要翻译: 彩色图像扫描器由用于照射待读出的原稿(2)的三原色LED阵列(4)构成,单色图像传感器阵列(3)和设置在原稿(1)之间的杆状透镜阵列(1) )和图像传感器阵列(3)。 构成棒状透镜阵列(1)的三种折射率分布型棒状透镜(11,12,13)的聚焦参数被设定为使得各种工作波长带和预定波长各自不同, 这些种类之间的透镜长度Zo相等,各预定波长的共轭长度TC在各种情况下基本相同。 因此,当通过使用有效紧凑度和亮度的棒状透镜阵列执行彩色图像读取操作时,可以充分降低棒状透镜阵列的色差,并且可以以低成本实现高分辨率。

    METHOD FOR MANUFACTURING POROUS HOLLOW FIBER MEMBRANE
    7.
    发明申请
    METHOD FOR MANUFACTURING POROUS HOLLOW FIBER MEMBRANE 审中-公开
    制造多孔中空纤维膜的方法

    公开(公告)号:US20140343178A1

    公开(公告)日:2014-11-20

    申请号:US14344469

    申请日:2012-09-14

    IPC分类号: C08J9/26

    摘要: The purpose of the present invention is to provide a method for manufacturing a porous hollow fiber membrane in which the amount of a hypochlorite used during pore forming agent removal treatment can be reduced and the facilities cost can be minimized, and in which the post-treatment waste liquid can be readily treated. This method for manufacturing a porous hollow fiber membrane has: coagulating a membrane forming material liquid containing a membrane forming resin and a pore forming agent by a coagulating liquid, to thereby form a porous hollow fiber membrane precursor; and removing the porous hollow fiber membrane precursor impregnated at least with a liquid into contact with ozone gas in a vapor phase, to thereby decompose and remove the pore forming agent present in the membrane.

    摘要翻译: 本发明的目的是提供一种制造多孔中空纤维膜的方法,其中可以减少在成孔剂除去处理期间使用的次氯酸盐的量,并且可以使设备成本最小化,并且其中后处理 废液可以容易地处理。 这种制造多孔中空纤维膜的方法是:通过凝结液凝结含有成膜树脂和成孔剂的成膜材料液,从而形成多孔中空纤维膜前体; 并将至少用液体浸渍的多孔中空纤维膜前体除去与气相中的臭氧气体接触,从而分解和除去存在于膜中的成孔剂。

    Hollow porous membrane and process for producing the same
    8.
    发明授权
    Hollow porous membrane and process for producing the same 有权
    中空多孔膜及其制造方法

    公开(公告)号:US08752713B2

    公开(公告)日:2014-06-17

    申请号:US12993709

    申请日:2009-05-21

    摘要: A hollow porous membrane with a reduced cost and excellent separation characteristic, water permeability, and mechanical strength and a process of producing the hollow porous membrane with an excellent adhesive property between a support and a porous membrane layer at a low cost are provided. The hollow porous membrane includes a porous membrane layer in which dense layers are disposed in the vicinities of an outer surface and an inner surface. In the process of producing the hollow porous membrane, membrane-forming dopes of a first membrane-forming dope and a second membrane-forming dope, which contain the material of the porous membrane layer and a solvent, are successively applied and stacked onto the outer circumferential surface of a hollow support and the applied membrane-forming dopes are simultaneously coagulated. In the process of producing the hollow porous membrane, a porous membrane layer is formed by applying a membrane-forming dope containing a material of the porous membrane layer and a solvent to the outer circumferential surface of the hollow support and coagulating the applied dope, and a hollow braid obtained by circularly knitting a yarn formed of multi-filaments is used as the support.

    摘要翻译: 提供了一种中空多孔膜,其成本降​​低且分离特性优异,透水性和机械强度,以及以低成本制备支撑体和多孔膜层之间的粘合性优异的中空多孔膜的方法。 中空多孔膜包括多孔膜层,其中致密层设置在外表面和内表面附近。 在制造中空多孔膜的过程中,连续地施加包含多孔膜层和溶剂的材料的第一成膜用原液和第二成膜原液的成膜剂,并层叠在外层 中空支撑体的圆周表面和所施加的成膜涂料同时凝结。 在制造中空多孔膜的过程中,通过将含有多孔膜层和溶剂的成膜原液涂布到中空支撑体的外周面并使涂布液凝结而形成多孔膜层, 使用通过圆形编织由多丝线形成的纱线获得的空心编织物作为支撑体。

    HOLLOW FIBER MEMBRANE SPINNING NOZZLE, AND METHOD FOR MANUFACTURING HOLLOW FIBER MEMBRANE
    9.
    发明申请
    HOLLOW FIBER MEMBRANE SPINNING NOZZLE, AND METHOD FOR MANUFACTURING HOLLOW FIBER MEMBRANE 审中-公开
    中空纤维膜纺丝喷嘴及制造中空纤维膜的方法

    公开(公告)号:US20130292860A1

    公开(公告)日:2013-11-07

    申请号:US13988697

    申请日:2011-11-24

    IPC分类号: D01D5/247

    摘要: A hollow fiber membrane-spinning nozzle that spins a hollow fiber membrane having a porous membrane layer and a support is provided in which the nozzle includes a resin flow channel through which a membrane-forming resin solution forming the porous membrane layer flows, the resin flow channel includes a liquid storage section that stores the membrane-forming resin solution and a shaping section that shapes the membrane-forming resin solution in a cylindrical shape and satisfies at least one of conditions (a) to (c): (a) the resin flow channel is disposed to cause the membrane-forming resin solution to branch and merge; (b) a delay means for delaying the flow of the membrane-forming resin solution is disposed in the resin flow channel; and (c) the liquid storage section or the shaping section includes branching and merging means for the membrane-forming resin solution therein.

    摘要翻译: 提供一种中空纤维膜纺丝喷嘴,其旋转具有多孔膜层和支撑体的中空纤维膜,其中,喷嘴包括树脂流路,形成多孔膜层的成膜树脂溶液通过该树脂流路流动,树脂流 通道包括储存膜形成树脂溶液的液体储存部分和成形部分,其将成膜树脂溶液成形为圆柱形并满足条件(a)至(c)中的至少一个:(a)树脂 设置流路使膜成形树脂溶液分支合并; (b)在树脂流动通道中设置用于延迟成膜树脂溶液的流动的延迟装置; 和(c)液体储存部分或成形部分包括其中的成膜树脂溶液的分支和合并装置。