Basic Ray Tracing for Stray Light Analysis

Keyword(s):  
2013 ◽  
Author(s):  
Eunsong Oh ◽  
Jinsuk Hong ◽  
Sug-Whan Kim ◽  
Seongick Cho ◽  
Joo-Hyung Ryu

2016 ◽  
Vol 56 (9) ◽  
pp. 837-845 ◽  
Author(s):  
S. Kajita ◽  
E. Veshchev ◽  
R. Barnsley ◽  
M. Walsh

2016 ◽  
Vol 24 (10) ◽  
pp. 10232 ◽  
Author(s):  
Eunsong Oh ◽  
Jinsuk Hong ◽  
Sug-Whan Kim ◽  
Young-Je Park ◽  
Seong-Ick Cho

2011 ◽  
Vol 138-139 ◽  
pp. 387-390
Author(s):  
Jin Xing Niu ◽  
Heng Can Li

Analysis and calculation of stray light is important to improve the performance of infrared detection system. In this article, we mainly discussed two sources: earth and atmosphere emission and thermal stray radiation. A method based on Monte Carlo ray-tracing in TracePro is proposed to calculate the irradiance of detector arisen from earth and atmosphere emission. The thermal stray light irradiance on detector can also be obtained by simulation in TracePro.


2015 ◽  
Vol 57 (4) ◽  
pp. 045009 ◽  
Author(s):  
Shin Kajita ◽  
Maarten De Bock ◽  
Manfred von Hellermann ◽  
Andrei Kukushkin ◽  
Robin Barnsley

2021 ◽  
Author(s):  
Martin Marciniak

This thesis describes strategies to perform stray light testing in an earthbound laboratory while accounting for atmospheric and surface scattering phenomena that make these measurements difficult. We present a method to analyze and predict the stray light performance for a baffled star tracker optical system. This method involves a hybrid stray light analysis procedure that combines experimental measurements of a star tracker lens optics and uses ray-tracing to obtain attenuation curves. We demonstrate these analytical techniques using an engineering model ST-16 star tracker from Sinclair Interplanetary along with a baffle prototype. The system attenuation curve's accuracy is validated by comparing independently measured baffle attenuation curves with equivalent ray-tracing models. Additionally, exclusion angles are defined for the ST-16 sensor by calculating the false detection rate that varies with system attenuation levels. These techniques provide a versatile alternative to conventional testing for preliminary design stages for a star tracker baffle that emphasizes the use of modest infrastructure.


Sign in / Sign up

Export Citation Format

Share Document