Invention Application
US20080074528A1 Zoom module using rotational actuator with anti-lock feature, even force distribution and shock damage prevention methods
失效
变焦模块采用旋转执行器，具有防锁功能，均匀的力分布和防冲击损坏的预防方法
- Patent Title: Zoom module using rotational actuator with anti-lock feature, even force distribution and shock damage prevention methods
- Patent Title (中): 变焦模块采用旋转执行器，具有防锁功能，均匀的力分布和防冲击损坏的预防方法
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Application No.: US11888979Application Date: 2007-08-03
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Publication No.: US20080074528A1Publication Date: 2008-03-27
- Inventor: Lothar Westerweck , Wolfram Grziwa , Klaus Raschke , Alexander Raschke , John Toor
- Applicant: Lothar Westerweck , Wolfram Grziwa , Klaus Raschke , Alexander Raschke , John Toor
- Main IPC: H04N3/14
- IPC: H04N3/14 ; G03B13/30 ; G03B17/08
Abstract:
An optical module includes a first optics group, a second optics group, and an image sensor, wherein the first optics group and second optics group are configured to provide an image having a focus and a magnification to the image sensor. In some embodiments of the present invention, a first optics assembly includes a first optics group coupled to a threaded portion of a first lead screw so that translation of the first lead screw results in translation of the first optics group along an axis of the first lead screw, a first actuator for rotating the first lead screw; and a first sensing target configured to permit detection of rotation of the first lead screw. In some embodiments of the present invention a second optics assembly includes a second optics group coupled to a threaded portion of a second lead screw so that translation of the second lead screw results in translation of the second optics group along an axis of the second lead screw, a second actuator for rotating the second lead screw, and second means for sensing configured to detect rotation of the second lead screw.
Public/Granted literature
- US07573011B2 Zoom module using actuator and lead screw with translating operation Public/Granted day:2009-08-11
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