发明名称 Uniformly lighted pattern display
摘要 A lighted display device having an array of discrete reflective surfaces each of which is associated with a visual display. The reflectivity of each of the surfaces is established so that the light reflected to, and illuminating, each associated visual display is of equal intensity independent of the distance of the reflective surface from the light source.
申请公布号 US4322781(A) 申请公布日期 1982.03.30
申请号 US19800165584 申请日期 1980.07.03
申请人 THE SINGER COMPANY 发明人 PETERSON, WESLEY R.
分类号 G09F13/18;D05B3/02;D05B79/00;(IPC1-7):F21V7/04 主分类号 G09F13/18
代理机构 代理人
主权项
地址