Lateral light losses in integrating sphere measurements: comparison of Monte-Carlo with inverse adding-doubling algorithm

2020 ◽  
Author(s):  
Vinoin Devpaul Vincely ◽  
Karthik Vishwanath
Keyword(s):  
Monte Carlo ◽  
Integrating Sphere ◽  
Light Losses

Monte Carlo Simulation for the Angle-Dependent Light Transmittance of Thermotropic Material

2010 ◽  
Vol 29-32 ◽  
pp. 2781-2784
Author(s):  
Jian Yao ◽  
Jin Xu
Keyword(s):  
Energy Efficiency ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Building Energy ◽  
Light Transmittance ◽  
Integrating Sphere ◽  
Building Energy Efficiency ◽  
Scattering Light

In this paper we propose a Monte-Carlo method for the simulation of the angle-dependent light transmittance of thermotropic material. The results show that the scattering light increased as temperature rose, and most of light transmitted went through the sample of thermotropic material at the angles between 10~40 deg. The results also indicate that the light transmittance measurement of thermotropic material by spectrophotometer without an integrating sphere is not accurate. As a conclusion, Monte Carlo simulation is an effective method for the determination of angle-dependent light transmittance of thermotropic material, and results of these simulations can be used to calculate the shading coefficient of window for building energy efficiency.

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