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2. 发明专利

JP2001048433A PICTURE DEVICE OF ELEVATOR 失效
公开(公告)号：JP2001048433A
公开(公告)日：2001-02-20
申请号：JP22456899
申请日：1999-08-06
申请人： HITACHI BUILDING SYS CO LTD
发明人： SHIMIZU HITOSHI , YAMAZAKI HIROKO , SUZUKI YOSHIMI , SUZUKI TOMOAKI , TAKASU HIDEKI
IPC分类号： B66B3/00
摘要： PROBLEM TO BE SOLVED: To cope with a long elevator shaft without extending a transmission distance in an optical space by disposing a light emitting device or a photo detecting device both at a top part and a base of an elevator shaft, and providing a photo detecting device or a light emitting device both in an upper part and a lower part of a cage. SOLUTION: A light emitting device 5 having a light transforming picture device is provided in an elevator shaft 1, a photo detecting device 6 having a light transforming picture device is provided opposite to the light emitting device 5 in a cage 3, whereby an optical signal (f) radiated from the light emitting device 5 is received by the photo detecting device 6. A transmitter 4 provided in a building manager room or the like outputs a picture signal to be displayed on a picture display device 8 to the light emitting device 5, the light emitting device 5 for receiving a picture signal converts the input signal to an optical signal (f), which is radiated to the photo detecting device 6. The photo detecting device 6 receives the optical signal (f), and the optical signal (f) is converted to a picture signal to read out a picture signal. A controller 7 outputs a read picture signal to the picture display device 8, and the picture display device 8 displays the picture signal.

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