发明名称 |
Projection-Type image display device |
摘要 |
In a projection-type image display device, a driven member of a screen is displaced in a plane parallel to the screen. The driven member can be a Fresnel lens or a diffusing member. An elastic retaining unit holds the driven member in such a manner as to be capable of moving in the plane parallel to the screen, and a pair of driving sources applies driving forces in mutually intersecting directions to the driven member. A control circuit drives the pair of driving sources with driving waveforms having a prescribed phase difference therebetween so that the driven member makes continuous motion in a plane parallel to the screen when an image is projected.
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申请公布号 |
US2009109530(A1) |
申请公布日期 |
2009.04.30 |
申请号 |
US20080222273 |
申请日期 |
2008.08.06 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
MICHIMORI ATSUSHI;WATANABE NORIHIRO;NARITA MASAO;ARITA HIDEAKI |
分类号 |
G03B21/60 |
主分类号 |
G03B21/60 |
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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