scholarly journals Analysis of the Point Brilliance at Pilot's Eyes caused by Aeronautical Ground Lights with Luminous Intensity Distribution Approximated by a Mathematical Technique

2001 ◽  
Vol 85 (Appendix) ◽  
pp. 225-226
Author(s):  
Hiroshi Ishida ◽  
Hiroshi Tokunaga ◽  
Masaharu Nakayama ◽  
Koichi Ikeda ◽  
Kiyosige Obara
2011 ◽  
Vol 36 (6) ◽  
pp. 416-421
Author(s):  
Hyung-Kweon Kim ◽  
Yu-Yong Kim ◽  
Seoung-Yeoup Shin ◽  
Byoung-Gap Kim ◽  
Ho-Sang Lee

2012 ◽  
Vol 579 ◽  
pp. 10-21 ◽  
Author(s):  
Chung Yi Lin ◽  
Tung Cheng Pan ◽  
Yao Chi Peng ◽  
Jian Shian Lin ◽  
Cheng Hao Ko ◽  
...  

Abstract- In this paper, a bending machine for tuning optical design of LED module is proposed. The tuning is done by changing the bending angles of each package on a given module with the help of automatic control program. Luminous intensity distribution can be controlled by adjusting the light emission path, which in turn can be implemented as changing the bending angles of individual LED packages on the module. The proposed machine is capable of bending packages to specified angles with errors less than 0.1°. Three-dimensional light distribution for bent package LED modules is also studied based on various application scenarios so that each scenario can have diversified luminous intensity distribution resulting in higher uniformity and better luminance quality. The machine has several advantages, including quick bending, high accuracy, and great customizability. These advantages make the machine meet the requirements of automatic mold forming.


2022 ◽  
Vol 2149 (1) ◽  
pp. 012015
Author(s):  
M Katona ◽  
K Trampert ◽  
C Schwanengel ◽  
U Krüger ◽  
C Neumann

Abstract Imaging Luminance Measuring Device (ILMD) based luminous intensity distribution measurement systems are an established method for measuring the luminous intensity distribution (LID) of light sources in the far field. The advantage of this system is the high-resolution acquisition of a large angular range with one image. For the uncertainty budget, the mathematical description of the system can be divided into photometric and geometric contributions. In the following, we will present a Monte-Carlo approach to analyse the geometric contributions which are the uncertainty of measurement direction and measurement distance. Therefore, we set up a geometric system description based on kinematic transformations that describes the connection between detector and light source position. To consider all relevant input quantities we simulate the adjustment and measurement process. Finally, an analysis of the geometric input parameters is shown.


2016 ◽  
Vol 36 (10) ◽  
pp. 1022002
Author(s):  
李远兴 Li Yuanxing ◽  
梁文跃 Liang Wenyue ◽  
叶湖贵 Ye Hugui ◽  
龙拥兵 Long Yongbing ◽  
申冬玲 Shen Dongling ◽  
...  

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