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相关概念视频

Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

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相关实验视频

Updated: May 11, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
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分裂模式辐射映射,第I部分:建模.

Juan Camilo Valencia Estrada, Jorge Garcia-Marquez, Romain Etienne

    Journal of the Optical Society of America. A, Optics, image science, and vision
    |June 10, 2024
    PubMed
    概括
    此摘要是机器生成的。

    这项研究引入了一种新的技术,通过将发射源功率在射线之间分成部分来预测光学系统中的辐射分布. 这种方法可以准确计算辐射强度,并有助于设计各种光学系统.

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    相关实验视频

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    科学领域:

    • 光学工程是指光学工程.
    • 放射测量是一种放射测量.
    • 计算光学是指计算机光学.

    背景情况:

    • 精确预测辐射分布对于光学系统设计至关重要.
    • 现有的方法在处理复杂的光学路径和功率损失方面可能存在局限性.

    研究的目的:

    • 提出一种用于预测任何光学系统中的辐射分布的新技术.
    • 通过考虑光学路径上的功率损失,实现精确的辐射计算.

    主要方法:

    • 将发射源功率分解为分配给单个射线的分数.
    • 考虑到光线光学路径内的所有类型的功率损失.
    • 在每个光线的最终光学表面上创建分成的辐射图案.

    主要成果:

    • 产生了分成部分的辐射模式,每个代表总辐射的一部分.
    • 总辐射量是通过对分数辐射图的总和来计算的.
    • 该方法被证明是非零范围的.

    结论:

    • 提出的技术准确地预测光学系统中的辐射模式.
    • 这种方法简化了成像和非成像光学系统的设计.
    • 它提供了一种使用有限的方程集的计算效率高的方法.