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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
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使用基于SPAD的闪光DToF系统的时间编码方法来抑制多激光源干扰.

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    此摘要是机器生成的。

    这项研究引入了时间编码,以减少直接飞行时间 (DToF) 成像系统的干扰. 这种方法通过抑制来自多个DToF源的噪声,显著提高了测量准确性.

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    科学领域:

    • 光电学是指光电子产品.
    • 图像传感技术的技术.
    • 半导体设备 半导体设备

    背景情况:

    • 闪光灯类型的直接飞行时间 (DToF) 图像传感器依赖于像素内连续近似寄存器时间到数字转换器 (SAR TDC) 进行精确的时间定量.
    • 多个DToF系统同时运行导致相互信号干扰,由于重叠的激光信号,损害了测量准确性.

    研究的目的:

    • 开发和验证一种新的"时间编码"方法,以减轻多DToF系统环境中的干扰.
    • 为了提高DToF成像系统在混乱的光学条件下运行的强度和可靠性.

    主要方法:

    • 实施一种时间编码技术,包括在系统工作期间之间插入延迟时间区.
    • 设计和模拟使用110nm互补金属氧化物半导体 (CMOS) 技术的时间编码方法.
    • 通过行为建模和电路模拟进行验证,以评估干扰抑制和准确性.

    主要成果:

    • 时间编码方法在DToF系统中有效地抑制了至少95%的干扰噪声.
    • 测量准确度保持在99%或更高,即使在较远的距离,与实施的时间编码模式.
    • 与传统的DToF系统相比,拟议的方法显示了显著的噪声降低.

    结论:

    • 时间编码为多DToF系统中相互干扰的关键挑战提供了可行的解决方案.
    • 开发的基于110纳米CMOS的时间编码技术确保了高度测量准确性和噪声抑制.
    • 这一进步对于在复杂的多传感器场景中可靠部署DToF成像至关重要.