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首页> 外国专利> MR-APPARATUS WITH AUTOFOCUSING MOTION MONITOR SYSTEM AND ASSOCIATED CAMERA LENS WITH ADAPTIVE LENS ELEMENT

MR-APPARATUS WITH AUTOFOCUSING MOTION MONITOR SYSTEM AND ASSOCIATED CAMERA LENS WITH ADAPTIVE LENS ELEMENT

机译：具有自动对焦运动监控系统的MR设备和具有自适应镜头元件的相关相机镜头

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摘要

Magnet resonance apparatus comprising an MR magnetic system for generating a homogeneous magnetic field, which has a hole for accommodating a measurement object (28), and also comprising an optical motion monitor system for detecting movements of the measurement object, comprising an optical camera (27) arranged within the hole and having a camera lens (20) and a device for transmitting monitoring data to an image converter provided outside the MR magnetic system, is characterized in that the camera lens comprises an autofocus system composed of non-magnetic material, and in that the autofocus system neither absorbs nor reflects nor emits RF fields. A camera lens for an MR apparatus is thus available which is arranged within the hole in the MR magnetic system, does not adversely influence the MR measurement and has a high optical resolution despite a large sharpness range.
机译：磁共振设备，包括用于产生均匀磁场的MR磁系统，该MR磁系统具有用于容纳测量对象的孔（28），并且还包括用于检测测量对象的运动的光学运动监控系统，其包括光学相机（27） ）布置在孔内并具有摄像机镜头（20）和用于将监视数据传输到设置在MR磁系统外部的图像转换器的装置，其特征在于，摄像机镜头包括由非磁性材料组成的自动聚焦系统，并且因为自动聚焦系统既不吸收也不反射也不发射RF场。因此，可获得用于MR设备的摄像机镜头，其布置在MR磁性系统的孔内，不会不利地影响MR测量并且尽管具有大的锐度范围也具有高光学分辨率。

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