发明名称 |
LENS SHIFT MECHANISM AND PROJECTION IMAGE DISPLAY DEVICE |
摘要 |
A central position detection section has a detection width in which the central position has a median value along one axial direction. When the direction from a position, which is located at the time at which returning is started toward the central position is defined as a go direction, the control section commands that a drive mechanism should sequentially perform following operations: a first operation of driving a the projection lens assembly in the go direction; a second operation of allowing the projection lens assembly to travel in a return direction at least by the detection width; and a third operation of allowing the projection lens assembly to travel in the detection width in the go direction by ½ of the detection width traveled in the go direction.
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申请公布号 |
US2013208250(A1) |
申请公布日期 |
2013.08.15 |
申请号 |
US201113878518 |
申请日期 |
2011.09.22 |
申请人 |
FUJISAKI TAKESHI;YOSHIMURA TAICHI;SANYO ELECTRIC CO., LTD. |
发明人 |
FUJISAKI TAKESHI;YOSHIMURA TAICHI |
分类号 |
G03B21/14;G02B7/02 |
主分类号 |
G03B21/14 |
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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