Design peculiarities of light-emitting diode devices

被引:3
|
作者
Abulkhanov, S. R. [1 ]
Goryainov, D. S. [2 ]
机构
[1] Samara Natl Res Univ, Moskovskoye Highway 34, Samara 443086, Russia
[2] Samara State Tech Univ, Molodogvardeyskaya St 244, Samara 443010, Russia
关键词
light-emitting diode (LED); lighting devices; railway headlight; numerical modeling; ray tracing; intensity distribution; DIFFRACTIVE OPTICAL-ELEMENTS; SHAPED DIRECTIVITY DIAGRAM; OFFNER SCHEME; HYPERSPECTROMETER; DISTRIBUTIONS; SIMULATION; SCATTERING; VIBRATION; FILTERS; VISION;
D O I
10.1016/j.proeng.2017.09.672
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The operation of light-emitting diode (LED) devices has identified a number of peculiar features of the angular distribution of light intensity. The use of several light-emitting diodes results in an unevenly bright light-emitting surface of a lighting device. When lighting devices operate under vibration conditions, certain circumstances may occur when highlight or lowlight areas appear and are continuously observed on screen. The authors have simulated model conditions of dark screen areas occurred as applied to the light flux being formed by light-emitting railway headlights. (C) 2017 The Authors. Published by Elsevier Ltd.
引用
收藏
页码:90 / 99
页数:10
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