共查询到18条相似文献,搜索用时 46 毫秒
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激光共焦扫描显微镜的光学特性研究 总被引:3,自引:1,他引:3
研究了最新发展的激光头焦扫描显微镜的下述光学特性:分辨本领及像的反差,层析分析原理及三维构像。还给出激光共焦扫描显微镜的基本光学系统及其光路按排。 相似文献
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二维扫描共焦显微镜的研究 总被引:3,自引:1,他引:3
从光学系统、机械扫描、光电转换、数据采集、计算机控制、三维重建等几大方面详细地介绍了研制的二维扫描共焦显微镜 ,并对其应用前景进行了预测。 相似文献
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A Method of Quantitative Measurement of Fluorescence Intensity by Confocal Laser Scanning Microscopy
We present a method of quantitative measurement, by laser scanning microscope, of intensity of fluorescence in assays on concentration of fluorochromes in a sample. This method can be used to evaluate the DNA content or the concentration of any protein, marked by an appropriate fluorescent dye, in single cells or groups of cells, isolated or in a tissue. Confocal laser scanning microscopy provides optical serial sections through thick biological sample that give accurate information about the intensity of fluorescence. The method we propose consists in scanning the sample by juxtaposition of optical sections and displaying it as a suitable projection. Multiplying the fluorescence intensity in such projection by the number of sections we obtain an estimate of the concentration of fluorochrome in the sample. We tested this method on fluorescent beads and on biological samples stained for DNA. We evaluated and corrected the measure for the photobleaching effect and for the beam theoretical distortion. Our results show that this method is accurate and suitable to compare samples of variable thickness and for multiple stained samples, and is less time consuming than the method based on the scanning of the sample according to the Nyquist principle. 相似文献
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本文对光子扫描隧道显微镜(PSTM)的发展背景、成像机理、当前国内外发展动态及其技术价值都作了较为深入的研究,并从经典几何光学和波动理论上对PSTM显微成像机理进行了探讨。此外,对解决假像问题和高精度分辨的突破提出了初步的看法。 相似文献
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根据光学原理和煤堆检测仪的具体条件,导出用于该仪器的三角法物像方程、三角结构方程和分辨率方程,并对这些方程与三角结构参量的关系进行分析、给出关系曲线图。 相似文献