| 摘要 |
An optical coupler is provided which includes a light source; a conduit spaced from the light source with a major axis intersecting the light source, the conduit having a circular opening for receiving light from the light source; a first reflector surface of a partial rotated ellipse positioned to place the light source at the focus of the ellipse, the first surface having an extreme end with a first angle between the focus of the ellipse and the extreme end; and a second reflector surface juxtaposed between the first reflector surface and the conduit, the second reflector surface being generated from a compound parabola with a focus along the circular opening of the conduit with a parabolic axis at an angle generally equal to the first angle from the major axis of the cable rotated along the major axis of the cable.
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