发明名称 Electroluminescent lighting device for a dial
摘要 Peripheral lighting device for the scale of a dial (11) of an apparatus of small dimensions including a case (1) in which are housed a movement (14) driving at least one hand (12a, 12b, 12c) with respect to the scale, a power source (6) and an electronic circuit (15) able to supply a pulsed voltage, said case being closed by crystal (4) extended on the dial side by an annular extension forming a flange (17), characterized in that a circular recess (19) is provided inside the base (18) of the flange (17) to accommodate on the one hand, an electroluminescent ring (20) formed of a strip having a border (21) extending beyond the base and a connecting lug (22), and on the other hand a ring (30) made of translucent plastic material forced into the annular recess (19) to hold the electroluminescent ring (20) at the bottom thereof.
申请公布号 US6487143(B1) 申请公布日期 2002.11.26
申请号 US20000661933 申请日期 2000.09.14
申请人 ETA SA FABRIQUES D' EBAUCHES 发明人 KAELIN LAURENT
分类号 G04B19/30;G01D11/28;G01D13/02;G01D13/04;G04B19/32;G04G9/00;(IPC1-7):G04B19/30 主分类号 G04B19/30
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