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1. 发明公开

EP2341381A1 Drop detection using lens position sensing of camera module 审中-公开
标题翻译： Vorrichtung zur Erkennung des Herunterfallens eines Kameramodules mit Hilfe des Linsenpositionssensors
公开(公告)号：EP2341381A1
公开(公告)日：2011-07-06
申请号：EP10368006.2
申请日：2010-01-19
申请人： Dialog Imaging Systems GmbH
发明人： Gerhards, Timo
IPC分类号： G02B7/08 , G02B13/00
CPC分类号： G03B5/00 , G02B7/08 , G03B13/36 , G03B2217/18
摘要： Systems and methods to achieve an auto-focus camera with a movable lens barrel having a mechanic shock detection capability combined with a re-initialization of the camera module have been disclosed. This re-initialization may comprise moving the lens barrel displaced by the shock to a home position. In a preferred embodiment of the invention a motor with integrated position detection has been used. In a normal operation the position detection feature senses the actual position of the lens, e.g. during auto-focusing of the lens barrel, and provides this position information to a control unit which is controlling the movement of the lens barrel to a target position. In case of a mechanic shock, e.g. if the camera module drops to ground, the control unit detects an extreme rapid displacement of the lens barrel and initiates a re-initialization of the camera module.
摘要翻译：已经公开了实现具有与相机模块的重新初始化相结合的机械冲击检测能力的可移动镜筒的自动对焦相机的系统和方法。这种重新初始化可以包括将由冲击移位的透镜镜移动到原始位置。在本发明的优选实施例中，已经使用具有集成位置检测的马达。在正常操作中，位置检测特征检测透镜的实际位置，例如，在透镜镜筒的自动聚焦期间，并且将该位置信息提供给控制单元，该控制单元正在控制透镜镜筒的移动到目标位置。在机械冲击的情况下，例如如果相机模块落地，则控制单元检测到镜筒的极端快速位移并且启动相机模块的重新初始化。

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