| 摘要 |
The housing has conducting material enclosing a light transmitter or receiver (16). The conducting material is in the form of an approximately U-shaped metal profile (1) with a transparent layer (2) set into the opening of the metal profile. The transparent layer may be electrically conducting, to enable a conducting connection to the ends of the arms of the U-shaped metal profile, or may be coated with a conducting material. |
