Filter articles
标签
产品
Loading...
![[Translate to chinese:] Area of a printed circuit board (PCB) which was imaged with extended depth of field (EDOF) using digital microscopy. [Translate to chinese:] Area of a printed circuit board (PCB) which was imaged with extended depth of field (EDOF) using digital microscopy.](/fileadmin/_processed_/e/e/csm_PCB_imaged_with_EDOF_using_digital_microscopy_228d815bd1.jpg)
如何形成清晰的图像
在显微镜检查中,景深常被看做经验参数。在实际操作中,会根据数值孔径、分辨率和放大率之间的相关性确定该参数。为了获得最佳视觉效果,现代显微镜的调节设备在景深和分辨率之间实现了最佳平衡,这两个参数在理论上呈负相关。
Loading...
![[Translate to chinese:] Microstructure of a hard metal with 10% cobalt which is used for heavy-duty tools. [Translate to chinese:] These images show the microstructure of a hard metal with 10% cobalt which is used for heavy-duty tools. The large increase in magnification of the right image (compared to the left) has a risk of being outside the useful range or, in other words, empty magnification.](/fileadmin/_processed_/d/b/csm_Microstructure_of_a_hard_metal_which_is_used_for_heavy-duty_tools_69233d4576.jpg)
当心“无效”放大率
在一个最简化的情况,光学显微镜由一个靠近标本的透镜(物镜)和一个靠近眼睛的透镜(目镜)组成。显微镜放大率是两个显微镜透镜系数的乘积。比如,40倍物镜和10倍目镜可以得到400倍放大率。
Loading...

偏振光显微观察
偏光显微镜通常应用于材料科学和地质学领域,根据矿物的折射特性和颜色来识别矿物。在生物学中,偏光显微镜通常用于晶体等双折射结构的识别或成像,或用于植物细胞壁中纤维素和淀粉粒的成像。
Loading...

数码显微镜摄像头和图像分析的基础技术术语定义
现今绝大多数显微镜都配置了摄像头。摄像头的特征通常决定了所采集到的图像是否能够揭示出研究人员希望观察到的现象。但深入到摄像头术语时,技术术语十分繁杂。我们汇总整理了最为重要的术语及其简明释意以便提供方向。这些术语按字母顺序排列。
Loading...
![[Translate to chinese:] Image of an onion flake taken with a basic Leica compound microscope after it was tested for resistance to fungus and mold growth following part 11 of the ISO 9022 standard. [Translate to chinese:] Image of an onion flake taken with a basic Leica compound microscope after it was tested for resistance to fungus and mold growth following part 11 of the ISO 9022 standard.](/fileadmin/_processed_/2/f/csm_Image_of_an_onion_flake_acquired_after_ISO_9022-11_test_c88a560112.jpg)
ISO 9022 标准第 11 部分 - 在苛刻条件下测试显微镜
显微镜和其他光学仪器会受到环境因素的影响。环境因素取决于地理位置和使用地点的条件。仪器的坚固性可以通过完善的加速测试方法进行评估。ISO 9022 标准第 11 部分规定了测试光学仪器抗霉菌和真菌生长的方法。
Loading...
![[Translate to chinese:] C. elegans adult hermaphrodite gonades acquired using THUNDER Imager. Image courtesy of Prof. Dr. Christian Eckmann, Martin Luther University, Halle, Germany. [Translate to chinese:] C. elegans adult hermaphrodite gonades acquired using THUNDER Imager. Staining: blue - DAPI (nucleus), green - SP56 (sperm), red - RME-2 (oocyte), magenta - PGL-1 (RNA + protein granules). Image courtesy of Prof. Dr. Christian Eckmann, Martin Luther University, Halle, Germany.](/fileadmin/_processed_/7/c/csm_C_elegans_adult_hermaphrodite_gonades_5c49f08a7f.jpg)
生命科学研究: 哪种显微镜相机适合您?
相机是显微镜系统的重要组成部分,对系统的性能有重大影响。在选择相机时,重要的是不仅要看技术规格,还要考虑您的样品、技术、对比方法以及您希望获得的数据类型。
Loading...

荧光入门介绍
荧光是George Gabriel Stokes于1852年首次报道的一种现象。他观察到萤石在紫外线照射后开始发光。荧光是光致发光的一种形式,是指一种材料被光照射后会发射出光子。发射光的波长比激发光更长。这种效应又称为斯托克斯位移。