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    • 4. 发明申请
    • Imaging system
    • 成像系统
    • US20090012405A1
    • 2009-01-08
    • US11664979
    • 2006-11-17
    • Takemi HasegawaTakashi IwasakiToshiaki OkunoMasashi Onishi
    • Takemi HasegawaTakashi IwasakiToshiaki OkunoMasashi Onishi
    • A61B6/00
    • A61B5/0086A61B5/0084A61B90/36A61B2090/373
    • An imaging system 1 comprises: an illumination light source unit 10 that emits an illumination light having a wavelength in a near-infrared range; an illumination optical system 20 that illuminates an observed object 90 with the illumination light emitted from the illumination light source unit 10; an imaging optical system 30 that guides as a physical body light the illumination light that has been illuminated by the illumination optical system 20 onto the observed object 90 and has been scattered, reflected, or refracted thereby; and an imaging unit 40 that has an imaging sensitivity in a wavelength band of a near-infrared range, receives the physical body light arrived after being guided by the imaging optical system 30, and images the image of the observed object 90. The imaging unit 40 receives the physical body light after the light has passed through water and hemoglobin.
    • 成像系统1包括:照射光源单元10,其发射具有近红外范围的波长的照明光; 照明光学系统20,其利用从照明光源单元10发射的照明光照亮被观察物体90; 作为物理体引导的成像光学系统30将由照明光学系统20照射的照明光照射到被观察物体90上并被散射,反射或折射; 以及在近红外范围的波长带中具有成像灵敏度的成像单元40接收在被成像光学系统30引导之后到达的物理体光,并对观察对象90的图像进行成像。成像单元 40在光线通过水和血红蛋白后接收身体的光线。
    • 10. 发明授权
    • Optical fiber and optical transmission system
    • 光纤和光传输系统
    • US06856738B2
    • 2005-02-15
    • US09732725
    • 2000-12-11
    • Takatoshi KatoShigeru TanakaMasashi OnishiYuji Kubo
    • Takatoshi KatoShigeru TanakaMasashi OnishiYuji Kubo
    • G02B6/036G02B6/22
    • G02B6/02009G02B6/02257G02B6/03644G02B6/03666
    • An optical fiber and an optical transmission system are provided which enable a large-volume and long-haul transmission, using light signals having a plurality of wavelengths in a wide range of wavelength bands including 1.31 μm band, 1.45 μm band, 1.55 μm band and 1.58 μm band. The chromatic dispersion of the optical fiber according to the present invention is −20 ps•nm−1•km−3 or more but −3 ps•nm−1•km−1 or less in the whole wavelength range of 1300 nm to 1600 nm. The optical transmission system according to the present invention is also equipped with (1) a plurality of transmitters to transmit light signals having wavelengths in the range of 1300 nm to 1600 nm, (2) an optical fiber of the present invention, and (3) receivers which receive the light signals.
    • 提供一种光纤和光传输系统,其使得能够进行大容量和长距离的传输,使用在宽范围的波段中具有多个波长的光信号,包括1.31个母带,1.45个母带,1.55个母带,以及 1.58个妈咪乐队。 根据本发明的光纤的色散在-20ps.nm -1 -3km以上,但-3ps.nm -1 -1km以下。 整个波长范围为1300 nm至1600 nm。 根据本发明的光传输系统还配备有(1)多个发射机,用于发射波长在1300nm至1600nm范围内的光信号,(2)本发明的光纤和(3 )接收器接收光信号。