发明授权
- 专利标题： Lens shifting device and projection display device including the same
- 专利标题（中）： 透镜移位装置及投影显示装置
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申请号： US13576382申请日： 2010-03-02
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公开(公告)号： US08845111B2公开(公告)日： 2014-09-30
- 发明人: Kunitaka Furuichi , Takayuki Okada
- 申请人： Kunitaka Furuichi , Takayuki Okada
- 申请人地址： JP Tokyo
- 专利权人： NEC Display Solutions, Ltd.
- 当前专利权人： NEC Display Solutions, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： McGinn IP Law Group, PLLC
- 国际申请： PCT/JP2010/053332 WO 20100302
- 国际公布： WO2011/108074 WO 20110909
- 主分类号： G03B21/14
- IPC分类号： G03B21/14 ; G03B5/04
摘要：
The lens shifting device includes: first plate through which video light passes; second plate connected to first plate via elastic member and having projection lens attached to a position into which the video light that passed through first plate enters; slider disposed to project from second plate and housed in first plate to be movable in a predetermined direction; and guide shaft attached to first plate in the state of being engaged with slider and rotated to move the second plate. Elastic member is disposed between first plate and second plate to connect first plate and second plate in the state of generating an elastic contraction force.