| 摘要 |
A panel of a size to be inserted into a section of the hung framework of a suspended ceiling carries a housing, the lower portion of the housing projecting beneath the panel and comprising a tinted, partially transparent cylindrical sidewall closed at its lower end by a hinged, opaque cover. A rotatable bracket is mounted within the housing, and carries an opaque cylinder positioned within the partially transparent cylindrical sidewall, the cylinder having a window therein. A television monitoring camera is also mounted on the bracket, with its lens pointing through the window. A motor for operating the monitoring camera is mounted atop the housing, and the partially transparent cylindrical sidewall and the opaque cylinder cooperate to effectively shield the monitoring camera from view as it is panned over the premises.
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