Research on stray radiation of infrared detection optical system based on ray-tracing

2019 ◽  
Vol 48 (9) ◽  
pp. 904006
Author(s):  
张发强 Zhang Faqiang ◽  
张维光 Zhang Weiguang ◽  
万文博 Wan Wenbo
Keyword(s):  
Ray Tracing ◽  
Optical System ◽  
Infrared Detection ◽  
Stray Radiation

Principal-Component Calculation of Stray Light for Infrared Detection

2011 ◽  
Vol 138-139 ◽  
pp. 387-390
Author(s):  
Jin Xing Niu ◽  
Heng Can Li
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Detection System ◽  
Principal Component ◽  
Stray Light ◽  
Infrared Detection ◽  
Light Irradiance ◽  
Stray Radiation

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.

Accurate and fast stray radiation calculation based on improved backward ray tracing

2012 ◽  
Vol 52 (4) ◽  
pp. B1 ◽  
Author(s):  
Liu Yang ◽  
An XiaoQiang ◽  
Wang Qian
Keyword(s):  
Ray Tracing ◽  
Stray Radiation

scholarly journals Stray radiation analysis and suppression of composite optical system

2019 ◽  
Vol 40 (1) ◽  
pp. 1-8
Author(s):  
HAN Xing ◽  
WU Hanxiao ◽  
WANG Longyi
Keyword(s):  
Optical System ◽  
Stray Radiation

Design of infrared optical system based on three germanium lens with low stray radiation

2019 ◽  
Author(s):  
Zeyao Cui ◽  
Zhifeng Pan ◽  
Weifeng Ren ◽  
Chenjie Jin ◽  
Xin Yu
Keyword(s):  
Optical System ◽  
Stray Radiation

Effect of defects of component on stray radiation characteristics of infrared optical system

2017 ◽  
Vol 46 (1) ◽  
pp. 120004
Author(s):  
游兴海 You Xinghai ◽  
胡小川 Hu Xiaochuan ◽  
彭家琪 Peng Jiaqi ◽  
张彬 Zhang Bin
Keyword(s):  
Optical System ◽  
Radiation Characteristics ◽  
Stray Radiation

Computer Ray Tracing of the Optical System of the Schematic Eye

Nature ◽  
1966 ◽  
Vol 211 (5052) ◽  
pp. 930-932 ◽  
Author(s):  
ROBERT S. LEDLEY ◽  
GEORGE C. CHENG ◽  
WILLIAM M. LUDLAM
Keyword(s):  
Ray Tracing ◽  
Optical System ◽  
Schematic Eye

Combined finite elements and ray-tracing analysis for the optical system of JET-X x-ray telescope

1993 ◽  
Author(s):  
Giancarlo Parodi ◽  
Renzo Buzzi ◽  
Oberto Citterio ◽  
Paolo Conconi
Keyword(s):  
Finite Elements ◽  
Ray Tracing ◽  
Optical System ◽  
X Ray

MODELING AND PERFORMANCE EVALUATION OF OPTICAL SYSTEMS USING SKEW RAY TRACING

2007 ◽  
Vol 31 (2) ◽  
pp. 143-156
Author(s):  
Te-Tan Liao ◽  
Jing-Fung Lin
Keyword(s):  
Ray Tracing ◽  
Optical System ◽  
Monochromatic Light ◽  
Merit Function ◽  
Optical Systems ◽  
Optical Aberrations ◽  
Algebra Approach ◽  
Homogeneous Transformation Matrix ◽  
Overall Performance ◽  
And Performance

This paper applies a computational geometric algebra approach based on a 4 x 4 homogeneous transformation matrix to model optical systems and to evaluate their performance. In the proposed approach, the directions of the refracted/reflected rays at each boundary in the optical system are determined using skew ray tracing based upon Snell’s law. The differential changes in the image coordinates caused by optical aberrations are derived for both polychromatic and monochromatic light by applying a sensitivity analysis approach. Finally, a merit function is constructed comprising five individual defect items in order to evaluate the overall performance of a generic optical system. The proposed analytical approach provides a comprehensive and robust approach for the modeling and evaluation of optical systems.

Spectral ray data for optical simulations

2019 ◽  
Vol 8 (1) ◽  
pp. 55-65
Author(s):  
Ingo Rotscholl ◽  
Klaus Trampert ◽  
Franz Schmidt
Keyword(s):  
Ray Tracing ◽  
Optical System ◽  
White Light ◽  
Light Emitting Diode ◽  
Angular Variable ◽  
Light Sources ◽  
Far Field ◽  
Mathematical Concepts ◽  
Light Emitting ◽  
Different Types

Abstract This paper summarizes selected approaches, to generate spectral ray data for different types of spectrally varying light sources including only angular variable as well as spatial and angular variable sources. This includes a description of their general ideas and applications, the required measurements, and their mathematical concepts. Finally, achieved results for an Red/Green/Blue/White-light emitting diode (RGBW-LED) system are shown. Ray tracing simulations of a spatially and angularly spectral varying LED system combined with a spectrally sensitive optical system are qualitatively and quantitatively compared to a colorimetric far-field measurement of the same system. The results demonstrate the potential and benefits of spectral ray files in general.

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