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    • 5. 发明授权
    • Illumination device
    • 照明装置
    • US5857761A
    • 1999-01-12
    • US826591
    • 1997-04-03
    • Tomiya AbeKouki HiranoFumitaka NakahigashiMasanori MatsumotoYoshikazu HayakawaTohru Sasaki
    • Tomiya AbeKouki HiranoFumitaka NakahigashiMasanori MatsumotoYoshikazu HayakawaTohru Sasaki
    • G02B6/00F21V8/00
    • G02B6/0061G02B6/001G02B6/0028G02B6/0038G02B6/0043
    • An illumination device comprises a light source like a halogen lamp, a light guide, a round rod-shaped transparent radiation member having a proximal end and a distal end, and a transparent radiation plate. The light guide is a plastic optical fiber comprising a single core of silicon rubber and a cladding layer of tetrafluoroethylene/hexafluoropropylene copolymer. The radiation member is a transparent circular cylinder made of acrylic resin, and has a predetermined pattern of light scattering regions on its surface oppose the directions where the light is radiated. The radiation plate is placed such a position that one side plane of the radiation plate oppose to he radiation member, and also has a predetermined pattern of light scattering regions on the back. The light scattering regions are provided along said radiation member in such a way that a ratio of an tea of one region to that of adjacent region becomes larger as the one region becomes distant from the proximal and of the radiation member.
    • 照明装置包括像卤素灯的光源,光导,具有近端和远端的圆棒形透明辐射构件和透明辐射板。 导光体是由硅橡胶单芯和四氟乙烯/六氟丙烯共聚物的包覆层构成的塑料光纤。 辐射构件是由丙烯酸树脂制成的透明圆筒,并且在其表面上相对于光辐射的方向具有预定图案的光散射区域。 放射板被放置成使辐射板的一个侧面与辐射构件相对的位置,并且在背面也具有预定的光散射区域图案。 沿着所述辐射构件提供光散射区域,使得当一个区域远离近侧和辐射构件时,一个区域的茶与相邻区域的茶的比例变得更大。
    • 10. 发明授权
    • Wavelength separation optical device and multiple wavelength light transmission module
    • 波长分离光学器件和多波长光传输模块
    • US06711326B2
    • 2004-03-23
    • US10354105
    • 2003-01-30
    • Tatsuya SugitaKoki HiranoTomiya AbeYuzo Ito
    • Tatsuya SugitaKoki HiranoTomiya AbeYuzo Ito
    • G02B627
    • G02B6/272G02B6/29361G02B6/29364G02B6/2938G02B6/4246G02B6/4249
    • Optical signals of which wavelength is multipled and which are transferred via an optical fiber 10 make incidence to refractive index distributing lens 34 and are converted into substantially parallel light beams, the optical signals converted make incidence into a polarized light conversion element 20a and are separated therein into two light beams and are emitted in a form of two linear polarized light beams of which polarization direction are aligned. The linear polarized light beams are separated by wavelength separation filters 28a, 28b and 28c, and make incidence with every two wavelength components either into a polarized light conversion element 20b or into polarized light conversion element 20c, and the optical paths for the light beams separated into two by the polarized light conversion element 20a are joined to form one light beam path for every waveform component. The optical signals of the four wavelength components are reflected either by a mirror 31b or by a mirror 31c, are converged by such as a hologram lens 40c, and, after being reflected by a mirror 32, are detected for every wavelength component by the photo detector array 36.
    • 波长被乘以并通过光纤10传送的光信号进入折射率分布透镜34并被转换成基本上平行的光束,光信号被转换成入射到偏振光转换元件20a中并在其中分离 分为两个光束,并以两个偏振方向对齐的线性偏振光束的形式发射。 线性偏振光束被波长分离滤光器28a,28b和28c分离,并且将每两个波长分量入射到偏振光转换元件20b或偏振光转换元件20c中,并且光束的光路分离 由偏振光转换元件20a连接成两个,以形成每个波形分量的一个光束路径。 四个波长分量的光信号由反射镜31b或反射镜31c反射,被诸如全息透镜40c会聚,并且在由反射镜32反射后,通过照片检测每个波长分量 检测器阵列36。