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    • 103. 发明授权
    • Monomode fiberguide telecommunication system utilizing soliton pulses
    • 单模光纤通信系统利用孤子脉冲
    • US4406516A
    • 1983-09-27
    • US257861
    • 1981-04-27
    • Akira Hasegawa
    • Akira Hasegawa
    • H04B10/135G02B5/14
    • H04B10/25
    • The data transmission rate link length product of monomode fiberguide telecommunication systems can be increased above values possible in "linear" systems by appropriate use of the non-linear dependence of the fiber refractive index on electric field. In particular, selecting the appropriate pulse peak power and center wavelength can result in creation of a soliton, i.e., a pulse capable of substantially dispersionless transmission. The center wavelength is to be close to, but larger than, the wavelength of zero first-order chromatic dispersion of the fiberguide, and the latter wavelength is to be within the anomalous dispersion regime of the fiberguide. Criteria for determining the appropriate peak power, center wavelength, fiber loss, and minimum link length, as well as the asymptotic pulse width and soliton spread due to the power loss in the fiber are given, and facilitate design of a system according to the invention.
    • 可以通过适当地使用光纤折射率对电场的非线性依赖性,将单模光纤通信系统的数据传输速率链路长度积增加到“线性”系统中可能的值。 特别地,选择合适的脉冲峰值功率和中心波长可导致产生孤子,即能够基本上无色散射的脉冲。 中心波长将接近但大于光纤导线的零一级色散的波长,后一波长处于光纤导向器的异常色散状态之内。 给出了用于确定适当的峰值功率,中心波长,光纤损耗和最小链路长度的标准,以及由于光纤中的功率损耗引起的渐近脉冲宽度和孤子扩展的标准,并且便于根据本发明的系统的设计 。
    • 109. 发明授权
    • Endoscope system
    • 内窥镜系统
    • US08617057B2
    • 2013-12-31
    • US11803816
    • 2007-05-16
    • Koki MorishitaAkira Hasegawa
    • Koki MorishitaAkira Hasegawa
    • A61B1/12A61B1/06
    • A61B1/12A61B1/00091A61B1/00186A61B1/015A61B1/043A61B1/0638A61B5/0071A61B5/0075A61B5/0084
    • An endoscope system includes an spouting portion spouting a fluorescent agent and a cleaning liquid, a light source portion emitting excitation light and irradiation light having different spectral characteristics, an optical system transmitting the excitation light or the irradiation light to the object, an image capture portion disposed in a section inserted into the coelom and picking up fluorescence and light having a different spectrum band that are emitted from the object, a spectroscopic portion disposed in an optical pass between the image capture portion and an end of the inserted section and restraining light having the same spectrum band as the excitation light from entering the image capture portion, and a control portion allowing the light source portion to emit excitation light at least once after the spouting portion spouts the fluorescent agent onto the object and before the spouting portion spouts the cleaning liquid.
    • 内窥镜系统包括喷射荧光剂和清洗液的喷射部分,发射激发光的光源部分和具有不同光谱特性的照射光,将激发光或照射光传输到物体的光学系统,图像捕获部分 设置在插入到所述系统中的部分中并且拾取具有从所述物体发射的不同谱带的荧光和光,设置在所述图像捕获部分和所述插入部分的端部之间的光学通过中的分光部分和具有 与进入图像捕获部分的激发光相同的光谱带,以及允许光源部分在喷射部分将荧光剂喷射到物体上之后并且在喷射部分喷射清洁之前至少一次发射激发光的控制部分 液体。
    • 110. 发明授权
    • Endoscope system and observation method using the same
    • 内窥镜系统和观察方法使用相同
    • US08021295B2
    • 2011-09-20
    • US11710808
    • 2007-02-26
    • Koki MorishitaAkira Hasegawa
    • Koki MorishitaAkira Hasegawa
    • A61B1/015A61B1/06
    • A61B5/0071A61B1/043A61B1/0638A61B5/0084
    • An endoscope system and an observation method using the same includes an agent dispensing portion for dispensing towards an acquisition object a fluorescent agent; a light source portion for emitting excitation light for exciting the fluorescent agent and irradiation light having different spectral characteristics from the excitation light; an optical system for transmitting the excitation light and the irradiation light towards the acquisition object; image-acquisition means, disposed at a portion that is inserted inside a body cavity and capable of acquiring fluorescence excited from the acquisition object by the excitation light, and light in a different wavelength band, which is excited from the acquisition object by the irradiation light; and control means for controlling the agent-dispensing means so that the acquisition object is irradiated with the irradiation light before the fluorescent agent is spouted out towards the acquisition object and for synchronizing at least the operation for spouting the fluorescent agent from the agent dispensing portion with the irradiation of the excitation light.
    • 内窥镜系统和使用该内窥镜系统的观察方法包括:向采集对象分配荧光剂的药剂分配部; 用于发射用于激发荧光剂的激发光的光源部分和具有与激发光不同的光谱特性的照射光; 用于将激发光和照射光朝向采集对象传输的光学系统; 图像获取装置,设置在插入体腔内部并且能够通过激发光获取从采集对象激发的荧光的部分和通过照射光从所述获取对象激发的不同波长带中的光 ; 以及控制装置,用于控制所述药剂分配装置,使得在所述荧光剂向所述获取对象喷射之前,用所述照射光照射所述获取对象,并且至少使来自所述药剂分配部分的所述荧光剂的喷射操作与 激发光的照射。