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    • 5. 发明申请
    • OPTICAL TRANSMISSION MODULE AND ELECTRONIC DEVICE
    • 光传输模块和电子设备
    • US20100303412A1
    • 2010-12-02
    • US12439707
    • 2008-01-17
    • Toshiaki OkunoJunichi TanakaHiroto NozawaNaru YasudaHayami Hosokawa
    • Toshiaki OkunoJunichi TanakaHiroto NozawaNaru YasudaHayami Hosokawa
    • G02B6/42
    • G02B6/4206G02B6/4214G02B6/43
    • An optical transmission module has a light-emitting element, a light-receiving element, and an optical path for optically coupling the light-emitting element and the light-receiving element, and transmitting a optical signal. The optical path has a core part, a clad part surrounding the core part, and a support board for supporting the optical path itself and the light-receiving element. A resin part formed of resin having a refractive index higher than air outside the optical path is arranged at a part of a surface area of the clad part along an optical transmission direction to which optical signals are transmitted. The resin part has an inclined surface in which the surface on the opposite side of the clad part is tilted relative to the optical transmission direction. The inclined surface forms an acute angle with the surface of the clad part at the opposite side of the light-receiving element in the resin part.
    • 光传输模块具有发光元件,光接收元件和用于光耦合发光元件和光接收元件的光路,并且发送光信号。 光路具有芯部,围绕芯部的包层部以及用于支撑光路本身和光接收元件的支撑板。 沿着光信号透射的光传输方向,在包层部分的表面区域的一部分上配置由折射率高于光路外的空气的树脂形成的树脂部。 树脂部分具有倾斜表面,其中包层部分相对侧上的表面相对于光传输方向倾斜。 倾斜表面与树脂部分中的光接收元件的相对侧处的包层部分的表面成锐角。