发明名称 Laser projector
摘要 Disclosed in a laser projector to display an image by projecting a laser beam from a laser light source to a projection screen including an electromagnetic driven scan mirror to scan the laser beam from the laser light source, a detection unit to detect a back EMF which is generated by a drive of the electromagnetic driven scan mirror at a time of start-up of the laser projector, a first determination unit to determine whether a value of the back EMF which is detected by the detection unit exceeded a predetermined threshold or not and a light source control unit to start a lighting of the laser light source when the value of the back EMF is determined as exceeding the predetermined threshold by the determination unit.
申请公布号 EP2110706(B1) 申请公布日期 2016.11.09
申请号 EP20090005379 申请日期 2009.04.15
申请人 FUNAI ELECTRIC CO., LTD. 发明人 NISHIGAKI, HIROSHI;HIRANO, ATSUYA;NISHIOKA, KEN;CHIKAOKA, ATSUHIKO
分类号 G02B26/08;G03B21/00;G09G3/02;H04N9/31 主分类号 G02B26/08
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