npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Phys.: Sae Mulli 2021; 71: 719-724

Published online August 31, 2021

Copyright © New Physics: Sae Mulli.

Analysis of LGP's Optical Characteristics According to Design Conditions of Large-area Flat-type LED Luminaires for High-efficiency Glare Prevention}

So Hee PARK*

Department of Physics, College of Natural Science and Public Health and Safety, Chosun University, Gwangju 61452, Korea


Received: May 6, 2021; Revised: July 1, 2021; Accepted: July 1, 2021


The development of high-efficiency new light sources with good characteristics is actively progressing due to the rapid growth of light source technology. Recently, the LED lighting market has been rapidly advancing to the development of convergence lighting technology utilizing various types of new functions. In this study, we tried to establish a design standard for a simple processing technique to solve the problems of slimming, cost, and differentiated technologies of fusion lighting systems with various characteristics. In addition, the scattering pattern was controlled to increase the production efficiency by minimizing the optical film and the light source, and the optical characteristics were analyzed by preparing conditions for improving the illuminance efficiency. A scattering pattern was selected to minimize glare, and light sources were arranged at the center and corners on the side of the light guide plate. As a result, the amount of light emitted to outside the light guide plate was found to have been increased by a factor of three or more. In addition, we were able to predict the effectiveness of large-area flat-type LED lighting fixtures, and to confirm that they could be used to improve the illuminance efficiency and the optical characteristics.

Keywords: Flat-type lighting system, LED(light-emitting diodes), Light guide plate(LGP), Glare, Illuminance