会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Optical device and a making method thereof
    • 光学装置及其制造方法
    • US06650821B1
    • 2003-11-18
    • US09477561
    • 2000-01-04
    • Yasushi KoyanoEisuke SasaokaShigeru TanakaKohei KobayashiMasashi OnishiKenji TamanoTakashi Fujii
    • Yasushi KoyanoEisuke SasaokaShigeru TanakaKohei KobayashiMasashi OnishiKenji TamanoTakashi Fujii
    • G02B600
    • G02B6/4457G02B6/02214G02B6/02261G02B6/02395G02B6/03627Y10T428/2933
    • After a wide-band DCF is wound around a bobbin to form an optical fiber coil 32, the latter is removed from the bobbin and placed into a bundle state (the state where the increase in transmission loss in the wavelength band of 1.55 &mgr;m caused by distortions in winding is reduced by 0.1 dB/km or more) released from distortions in winding. A resin 42 is used as a coil-tidying member so as to secure the optical fiber coil 32 to a storage case 40 at four positions. Both ends of the optical fiber coil 32 are connected to pigtail fibers at fusion-splicing parts 44, respectively. Even when the storage case 40 is closed with a lid after the optical fiber coil 32 is secured to the storage case 40 with the resin 42, there remain interstices within the bundle of the optical fiber coil 32 and a space between the optical fiber coil 32 and the storage case 40. As a result, even when the optical fiber coil 32 in a bundle state is accommodated in the storage case 40, transmission loss and the like would not increase.
    • 在宽带DCF缠绕在线轴上以形成光纤线圈32之后,将其从线轴上取下并放置成捆状态(由1.55μm的波长带的传输损耗的增加引起的状态 绕组失真减少了0.1 dB / km以上)。 树脂42用作线圈整理构件,以将光纤线圈32固定在四个位置处的存储盒40上。 光纤线圈32的两端分别在熔接部分44处连接到尾纤。 即使当光纤线圈32用树脂42固定在存储盒40上之后,当用盖子封闭存储盒40时,在光纤线圈32的束内仍然有空隙,并且光纤线圈32之间的空间 结果,即使束状态的光纤线圈32被容纳在收容箱40中,传输损耗等也不会增加。
    • 4. 发明授权
    • Optical fiber, dispersion compensator, optical transmission line and optical communications system
    • 光纤,色散补偿器,光传输线和光通信系统
    • US07076140B2
    • 2006-07-11
    • US10717202
    • 2003-11-20
    • Yoshinori YamamotoTakashi FujiiTakatoshi KatoEisuke Sasaoka
    • Yoshinori YamamotoTakashi FujiiTakatoshi KatoEisuke Sasaoka
    • G02B6/02
    • G02B6/03666G02B6/02261G02B6/03644G02B6/278G02B6/29377H04B10/2525
    • The present invention relates to an optical fiber or the like which allows more precise compensation for the chromatic dispersion of a transmission optical fiber over a broad wavelength band. The optical fiber has a chromatic dispersion of −100 ps/nm/km or less in a wavelength band of 1535 to 1565 nm, 1565 to 1610 nm, 1554 to 1608 nm or 1535 to 1610 nm. In particular, the chromatic dispersion profile of the fundamental mode of this optical fiber defined by the orthogonal coordinate system of the wavelength and chromatic dispersion value has a shape such that, over the entire wavelength band except for the shortest and longest wavelengths thereof, the chromatic dispersion values on the chromatic dispersion profile are respectively located on the minus side of the associated chromatic dispersion values on a straight line connecting the chromatic dispersion values at the shortest and longest wavelength. Since the chromatic dispersion profile of the transmission optical fiber such as a conventional single-mode fiber or the like has a shape opposite to that of this optical fiber, the chromatic dispersion of the transmission optical fiber can be compensated for more precisely by using this optical fiber as a dispersion compensating optical fiber.
    • 光纤等技术领域本发明涉及能够对宽波段的传输光纤的色散进行更精确的补偿的光纤等。 在1535〜1565nm,1565〜1610nm,1554〜1608nm或1535〜1610nm的波长带中,光纤的色散为-100ps / nm / km以下。 特别地,由波长和色散值的正交坐标系定义的该光纤的基本模式的色散曲线具有这样的形状,使得除了其最短和最长波长之外的整个波长带上,色度 色散曲线上的色散值分别位于连接最短和最长波长的色散值的直线上相关联的色散值的负侧。 由于诸如常规单模光纤等的传输光纤的色散曲线具有与该光纤相反的形状,所以可以通过使用该光学器件更精确地补偿传输光纤的色散 光纤作为色散补偿光纤。
    • 10. 发明授权
    • Image pickup lens unit manufacturing method and image pickup lens unit
    • 图像拾取镜头单元制造方法和图像拾取镜头单元
    • US08982486B2
    • 2015-03-17
    • US13825719
    • 2011-09-09
    • Hajime MoriTakashi FujiiTakemi Miyazaki
    • Hajime MoriTakashi FujiiTakemi Miyazaki
    • G02B7/02B29C45/16B29L11/00
    • G02B7/02B29C45/1671B29C2045/1673B29L2011/0016Y10S359/90
    • An image pickup lens unit, in which a holder body and a cover can be easily connected together, without additional components and a resin flow path for the connection. A lens 10 is positioned in a first holder member 20 which remains in a mold. A second holder member 30 for preventing the lens 10 from falling off is molded such that it is welded to the first holder member having the lens 10 positioned therein. This facilitates molding of the second holder member 30 and joining of the second holder member 30 to the first holder member 20 at the same time. Since there is no need to provide a resin flow path for joining the first holder member 20 and the second holder member 30 together, the image pickup lens unit can be made small in size.
    • 一种图像拾取透镜单元,其中保持器主体和盖可以容易地连接在一起,而没有附加部件和用于连接的树脂流动路径。 透镜10定位在保持在模具中的第一保持器构件20中。 用于防止透镜10脱落的第二保持器构件30被模制成使得其被焊接到具有位于其中的透镜10的第一保持器构件。 这有利于第二保持器构件30的模制和第二保持构件30同时与第一保持构件20的接合。 由于不需要提供用于将第一保持器构件20和第二保持器构件30接合在一起的树脂流动路径,因此可以使图像拾取透镜单元的尺寸小。