发明名称 |
ELECTROLUMINESCENT ILLUMINATION FOR A MAGNETIC COMPASS |
摘要 |
An illumination device for a magnetically sensitive instrument comprising a magnetically sensitive instrument, preferably a magnetic compass needle, and an electroluminescent device comprising an electroluminescent panel positioned behind and facing the magnetically sensitive instrument such that when the electroluminescent panel is activated, the magnetically sensitive instrument is illuminates by the electroluminescent light. The device is powered by a battery and further comprises a driver circuit to control the electroluminescent panel and switching means to engage and disengage the battery for selective operation of the light source. |
申请公布号 |
WO2004103027(A3) |
申请公布日期 |
2005.08.04 |
申请号 |
WO2004US15275 |
申请日期 |
2004.05.13 |
申请人 |
UNIVERSAL PLASTICS PRODUCTS, INC.;MILLER, CARROLL;WILSON, ANDREW |
发明人 |
MILLER, CARROLL;WILSON, ANDREW |
分类号 |
F21V9/16;G01C17/24;H05B |
主分类号 |
F21V9/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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