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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Analysis of the Change of Intensity Distribution and Luminous Environment by Reflector Shape in Indirect Reflected LED Luminaires
Authors Yu-Sin Kim ; An-Seop Choi
DOI http://dx.doi.org/10.5207/JIEIE.2011.25.1.009
Page pp.9-17
ISSN 1225-1135
Keywords Planar LED Luminaires ; Reflector Shape ; Luminous Environment ; Optical Design Simulation ; Lighting Design Simulation
Abstract Development of high efficiency and eco-friendly LED source has been progressed continuously. Also, by nation’s regulations, public institutions have changed existing luminaires to LED luminaires. However, there are several differences between existing luminaires and the intensity distribution of general planar LED luminaires. In case of changing existing luminaires to LED luminaires, by such differences, there are inefficiencies both quality aspect and energy aspect in luminous environment. Therefore, this study aims to conduct a study on the changes of intensity distribution and luminous environment by reflector shapes in indirect reflected LED luminaires with software for optical design of a luminaire (Photopia 2.0) and lighting design of a space (ReluxPro). This study shows the changes of intensity distribution and luminous environment of indirect reflected LED luminaires and indirect fluorescent lamp luminaires by reflector shapes.