| 摘要 |
A light waveguide is guided in the longitudinal direction over a defined length together with a filling compound, which are to be introduced into an outer envelope. The velocity of the light waveguide is subsequently decelerated to a lower value due to the reduction of velocity of the filling compound as it enters into the tubular envelope and, thus, the change in velocity converts the excess length of the waveguide into a non-straightline course or a serpentine configuration within the filling compound in the envelope.
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