发明名称 |
Apparatus and method for providing bilevel illumination |
摘要 |
A lighting fixture has a lamp and a housing for a lamp ballast. In the new fixture for providing bilevel illumination, the housing also contains a control device comprised of a dual capacitor and a "random crossing" relay connected to the capacitor. A single electrical control wire is attached to the relay and extends from the housing to a control module for remotely controlling the level of illumination consumed by the fixture. In a system employing one or more of the new fixtures, the level of illumination provided by each fixture is controlled by applying a signal to the control wire and switching the relay independently of the instantaneous value of the voltage across the relay terminals. A new method for providing two levels of power to the fixtures (and, thus, two levels of illumination) is also disclosed.
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申请公布号 |
US5451843(A) |
申请公布日期 |
1995.09.19 |
申请号 |
US19940231181 |
申请日期 |
1994.04.22 |
申请人 |
RUUD LIGHTING, INC. |
发明人 |
KAHN, MICHAEL J.;KOHANSKI, BERNARD |
分类号 |
H05B41/42;(IPC1-7):H05B37/00 |
主分类号 |
H05B41/42 |
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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