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Updated: Jul 10, 2025

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Fast Stray Light Performance Evaluation Based on BSDF and Radiative Transfer Theory.

Chaoli Zeng^1,2, Guangqing Xia^1,3, Xing Zhong^2,4

¹State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, China.

Sensors (Basel, Switzerland)

|November 25, 2023

Summary

This summary is machine-generated.

This study introduces a rapid stray light evaluation model for optical systems using radiative transfer theory. The new method significantly reduces computation time, enabling faster assessment of stray light performance.

Keywords:

BSDF PST off-axis reflective system radiative transfer theory rapid quantitative evaluation

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Area of Science:

Optical Engineering
Radiative Transfer Theory

Background:

Evaluating stray light is crucial for optical system performance.
Existing methods like Monte Carlo and ray tracing are computationally intensive and complex.

Purpose of the Study:

To develop a rapid and efficient method for evaluating stray light performance in optical systems.
To quantitatively determine stray light outside the field of view.

Main Methods:

Utilized radiative transfer theory based on bidirectional scattering distribution function (BSDF).
Derived light vector variation relationships and incorporated specular scattering properties.
Constructed a fast quantitative evaluation model for stray light elimination capability.

Main Results:

Developed a loop nesting procedure for rapid stray light assessment.
Successfully fitted the point source transmittance (PST) curve.
Quantitatively predicted stray light outside the field of view with high accuracy.

Conclusions:

The proposed method offers a computationally efficient alternative (10^-5 computing time) for stray light evaluation.
Suitable for rapid assessment and structural screening of symmetric off-axis reflective optical systems.
Promising for enhancing imaging accuracy and developing lightweight space cameras with reduced stray light.