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 |
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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