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    • 2. 发明授权
    • Image focusing in fluorescent imaging
    • 图像聚焦在荧光成像
    • US07141773B2
    • 2006-11-28
    • US10485116
    • 2002-08-06
    • Eran KaplanAvner Freiberger
    • Eran KaplanAvner Freiberger
    • H01J27/00
    • G01N21/6458G02B21/16G02B21/244G02B21/245G02B21/367
    • An imaging apparatus with an autofocus mechanism for obtaining focused images. The apparatus comprises: an objective lens, a focus controller for altering a distance between the objective lens and a sample, an object finder for finding objects of interest within the sample, for example cells, and a light intensity measurement unit which measures light intensity levels of the thus identified objects of interest. The focus control alters the sample-objective distance to maximize the light intensity levels being measured, thereby to arrive at a focus position. Objects of interest may be identified by filtering out large objects and optionally by masking out background regions. The apparatus is useful for microscopy and particularly for fluorescent imaging in which light levels are low and noise is often high.
    • 一种具有用于获得聚焦图像的自动对焦机构的成像装置。 该装置包括:物镜,用于改变物镜与样本之间的距离的聚焦控制器,用于在样本内发现感兴趣对象的对象取景器,例如单元,以及测量光强度水平的光强度测量单元 的感兴趣的对象。 聚焦控制改变了采样 - 目标距离,以最大化所测量的光强度水平,从而达到聚焦位置。 可以通过滤出大对象并且可选地通过掩蔽背景区域来识别感兴趣对象。 该装置对于显微镜是有用的,特别是对于光水平低且噪声通常较高的荧光成像。