| 摘要 |
An elevator display system employs an optical fiber 10 for transmitting image display information between devices at an elevator boarding site and a control panel installed in a machine room via modulated laser. At the boarding site the beam is deflected in an X, Y scanning mode and passed onto a half-mirror beam splitter 14. One portion exiting the mirror is directed to a viewing screen 6 to display the desired image, while another portion is converted to a power supply signal by an electrooptical transducer 15 for driving the display deflection circuits, thereby eliminating the need for electrical wiring between the control panel and the boarding site. <IMAGE> |
