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发明授权
CN100593096C 车辆用前照灯装置 失效 - 权利终止

车辆用前照灯装置
摘要：
提供一种车辆用前照灯装置，在电源或近光束异常时禁止红外光的照射。包括照射近光束的近光束单元(12)、切换远光束和红外光而进行照射的远光束/红外光切换单元(22)、控制远光束/红外光切换单元(22)的切换的控制电路(30)、检测近光束单元(12)的异常的近光束异常检测电路(14)、检测电源的异常的电源异常检测电路(16)、基于来自近光束异常检测电路(14)或电源异常检测电路(16)的异常信号将红外光停止信号输出到控制电路(30)中的红外光停止信号生成电路(18)，控制电路(30)响应于来自红外光停止信号生成电路(18)的红外光停止信号，对于远光束/红外光切换单元(22)禁止红外光的照射，并在除此之外时，对于远光束/红外光切换单元(22)指示远光束或红外光的照射。
摘要（英）：

A vehicle headlight device includes a lower beam unit for illuminating a lower beam, an upper beam/infrared ray switching unit for switching between illuminating an upper beam and an infrared ray, a low-beam abnormality detecting circuit for detecting an abnormality of the lower beam unit, a power-supply abnormality detecting circuit for detecting an abnormality of a power supply of the vehicle headlight, and a control circuit that inhibits the upper beam/infrared ray switching unit from illuminating the infrared ray when an abnormality is detected by either the low-beam abnormality detectingcircuit or the power-supply abnormality detecting circuit.

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