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相关概念视频

Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
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相关实验视频

Updated: Nov 18, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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在光子平台上的通用3D成像传感器

Christopher Rogers1, Alexander Y Piggott1, David J Thomson2

  • 1Pointcloud Inc, San Francisco, CA, USA.

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|February 11, 2021
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研究人员开发了一种512像素的连贯探测器阵列用于通用3D成像. 这种新系统提供了高深度准确性和直接速度测量, 克服了先前的像素限制, 以实现先进的机器感知.

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科学领域:

  • 光学和光学
  • 计算机视觉和机器感知
  • 固态电子

背景情况:

  • 精确的3D成像对于机器与物理世界互动至关重要,
  • 现有的3D成像系统缺乏2D数字图像传感器的广泛应用和影响.
  • 以前的大规模连贯探测器阵列受到电气和光子连接挑战的限制,限制它们在不到20个像素.

研究的目的:

  • 展示一个大规模的连贯探测器阵列用于通用3D成像.
  • 通过实现可扩展,高性能阵列来克服以前的3D成像系统的局限性.
  • 在一个紧的低功耗系统中实现高深度准确性和直接速度测量.

主要方法:

  • 使用光子和电子电路的单体集成开发了512像素的连贯探测器阵列.
  • 采用集成电子读取架构的光学异构检测方案.
  • 采用双轴固态光束转向,以灵活地控制视野和距离.

主要成果:

  • 展示了用于3D成像的大规模连贯探测器阵列 (512像素).
  • 在75米处使用仅4mW的光,在量子噪声极限上工作,达到3.1mm的精度.
  • 该系统在类似的范围内比现有的固态系统更准确.

结论:

  • 开发的系统克服了以前连贯探测器阵列中的可扩展性问题.
  • 这项技术可以开发低成本,紧,高性能的3D成像摄像机.
  • 潜在的应用包括机器人,自主导航,增强现实和医疗保健.