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1. 发明申请

US20130107212A1 THREE-AXIS POSITIONING DEVICE AND METHOD FOR OPHTHALMIC EXAMINATION INSTRUMENT 审中-公开
标题翻译：三轴定位装置和方法用于眼科检查仪器
公开(公告)号：US20130107212A1
公开(公告)日：2013-05-02
申请号：US13584469
申请日：2012-08-13
申请人： Chun Nan LIN , Chung Ping CHUANG , Che Liang TSAI , Kun Cheng HSIEH
发明人： Chun Nan LIN , Chung Ping CHUANG , Che Liang TSAI , Kun Cheng HSIEH
IPC分类号： A61B3/15 , A61B3/12
CPC分类号： A61B3/12 , A61B3/152
摘要： A simplified and cost-effective three-axis positioning device and method for ophthalmic examination instrument is disclosed. The three-axis positioning device includes an illuminating optical path for projecting light to illuminate an examinee's fundus; an imaging optical path including an objective lens for receiving the examinee's fundus image and light reflected from the examinee's cornea and eye-lens; a software-based alignment module for determining intensity and position of the reflected light on the fundus image to generate auxiliary positioning information; and an image displaying unit for showing the fundus image, the reflected light, and the auxiliary positioning information. From the intensity and position of the reflected light, x-, y- and z-axis relative positions between the examinee's pupil and the objective lens are obtained. An examiner adjusts the relative positions in three axes until they fall within an allowable deviation range, and a clear fundus image can be obtained.
摘要翻译：公开了一种简化且具有成本效益的三轴定位装置和眼科检查仪的方法。三轴定位装置包括用于投射光以照亮被检者的眼底的照明光路; 成像光路，包括用于接收受检者的眼底图像的物镜和从受检者的角膜和眼透镜反射的光; 基于软件的对准模块，用于确定眼底图像上的反射光的强度和位置，以产生辅助定位信息; 以及用于显示眼底图像，反射光和辅助定位信息的图像显示单元。从反射光的强度和位置，可以得到被检体瞳孔与物镜之间的x轴，y轴和z轴相对位置。检查者调整三轴的相对位置，直到它们落在允许的偏差范围内，并且可以获得清晰的眼底图像。

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