| 摘要 |
<p>Optical coupling device intended to the coupling of at least two light conductors through a semi ellipsoid-shaped transparent block (1a), to the focus points of which lead the end sections (2a and 4a) of the two light conductors. The light beam (6) emmerging from the conductor (2a) is reflected and transformed into a beam (8) converging at the end of the end section (4a). A slot (10) enables the introduction of a liquid cristal attenuator device (21) connected to an alternating voltage source (V). </p> |
