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发明申请
US20070114547A1 Optical element sealing structure, optical coupler, and optical element sealing method 审中-公开
光学元件密封结构，光耦合器和光学元件密封方法

Optical element sealing structure, optical coupler, and optical element sealing method
摘要：
A sealing structure includes a lead frame having a light transmitting section, an optical element having an optical surface which is directed to the light transmitting section and is mounted on the lead frame in such a state that the optical element blocks the light transmitting section at its one end portion in an axis direction, and a sealing body that is formed in a region excluding an optical path and seals the optical element. By forming the sealing body in the region excluding the optical path, the light usage efficiency can be prevented from decreasing even when a material that can increase the environmental resistance is added to the sealing body. Further, since the optical element is mounted on the lead frame with its face down, the sealing structure can be easily formed even when the optical element is small-sized.
摘要（中）：

密封结构包括具有光透射部分的引线框架，具有光学表面的光学元件，该光学元件被引导到光透射部分并且被安装在引线框架上，使得光学元件将光传输部分阻挡在其上 在轴向上的一个端部，以及形成在除了光路之外的区域中并密封光学元件的密封体。 通过在除了光路之外的区域中形成密封体，即使当向密封体添加可以增加耐环境性的材料时，也可以防止光的使用效率降低。 此外，由于光学元件面朝下地安装在引线框架上，所以即使光学元件小型化也能够容易地形成密封结构。

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