发明名称 Time indicating light fixture
摘要 A light fixture which indicates the time of day includes a clock mechanism having a movable hand and an electrically operated illumination device arranged relative to the clock mechanism for casting a shadow of the hand on a surface. A light sensing device senses the ambient light intensity at the fixture location and it is operatively connected to the illumination device to increase the intensity of the illumination device in response to an increase in ambient light intensity and to decrease the intensity of the illumination device in response to a decrease in ambient light intensity.
申请公布号 US4253170(A) 申请公布日期 1981.02.24
申请号 US19790000691 申请日期 1979.01.02
申请人 MEISNER, ARTHUR L. 发明人 MEISNER, ARTHUR L.
分类号 G04B19/34;(IPC1-7):G04B19/30;G04B19/04;G01D11/28 主分类号 G04B19/34
代理机构 代理人
主权项
地址