发明名称 |
Light source control device and projector |
摘要 |
A light source control device is for controlling a solid-state light source array having a plurality of solid-state light sources connected in series to each other, and includes a detector (a current detection resistor, voltage detection resistors, and operational amplifiers) adapted to detect at least one of a voltage applied to the solid-state light source array and a current supplied to the solid-state light source array, and a control circuit adapted to determine whether or not discontinuity of at least one of the voltage and the current is present using a detection result of the detector, and change control of one of the current and electrical power performed on the solid-state light source array if it is determined that the discontinuity is present. |
申请公布号 |
US8733947(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US201113189053 |
申请日期 |
2011.07.22 |
申请人 |
YANASE SHIGEHIRO;SHIOIRI KENICHI;TSUDA MASAHIDE;SAITO OSAMU;SEIKO EPSON CORPORATION |
发明人 |
YANASE SHIGEHIRO;SHIOIRI KENICHI;TSUDA MASAHIDE;SAITO OSAMU |
分类号 |
G03B21/20;G05F1/00;H05B37/02;H05B39/04;H05B41/36 |
主分类号 |
G03B21/20 |
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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