发明名称 |
Estimated remaining lamp life indicator system |
摘要 |
A system and method for estimating the remaining life of a light bulb, which includes a device for determining cold filament resistance of the light bulb while the light bulb is in a non-operating mode, a comparison device for comparing the cold filament resistance of the light bulb to a reference near an end of its life filament resistance, and a device for displaying an indication of a life expectancy for the light bulb. The system may be integrated into a vehicle or may be portable.
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申请公布号 |
US6784667(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20020124705 |
申请日期 |
2002.04.03 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
BELENGER ROBERT V.;LOPRIORE GENNARO R. |
分类号 |
G01R31/44;(IPC1-7):G01R31/00;G01N27/42 |
主分类号 |
G01R31/44 |
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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