| 摘要 |
An optical coupler is described in which a U-shaped glass plate 3 is disposed between the optical transmitter 1 and receiver 2. The electrodes of the transmitter 1 and receiver 2 e.g. an LED and phototransistor are glued to the glass plate and act to shade each other. A partly conductive coating may be formed on the glass plate which coating may additionally be opaque. The positions of transmitter and receiver may be reversed or the plate 3 may be flat. <IMAGE> |
