Browse > Article
http://dx.doi.org/10.5207/JIEIE.2014.28.8.032

A Comparative Study on the Luminous Flux by Degree of Non-directional LED Lamps and Incandescent lamp  

Park, Chang-Yong (Incheon National University, Electronics Engineering)
Seo, Jeong-Hyun (Incheon National University, Electronic Engineering)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.28, no.8, 2014 , pp. 32-39 More about this Journal
Abstract
In general, non-directional LED lamps including high transmittance cover are more advantageous than directional LED lamps, which are efficient enough to improve luminous efficacy and obtain certification, allowing wide manufacture, sale, and distribution. Although KS C 7651(Self-ballasted LED lamps-Safety and performance requirements) was revised in July 2013, however, many companies are having a lot of difficulties in keeping the certification and product development for the lack of the photometric analysis for non-directional LED lamps. In this paper, through the measurement of the angular distribution of luminous flux of incandescent lamp and non-directional LED lamps, we examined the reasonability of non-directional LED lamps' standards as suggested in KS C 7651. According to the results, even if non-directional LED lamps satisfy KS C 7651, when compared to an incandescent lamp, they showed less diffusive than the incandescent lamp and the distribution of the luminous flux depending on the angle fluctuated greatly even among LED lamps. Judging by the result, the current standard of the non-directional LED lamps, KS C 7651, has been comprehended that the angular distribution of the luminous flux needs to be presented after being much more thoroughly standardized.
Keywords
Non-Directional LED Lamps; Directional LED Lamps; Diffuse Lighting; Luminous Flux; KS C 7651;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Chang-Yong, Park, "A Study on the light Distribution and Angles Characteristics of Incandescent lamps for diffusion LED lamps development", KIIEE Annual Spring Conference 2013, pp. 55-56, 2013.
2 LED/OLED latest industry trends and innovations in Trend Analysis, Business Information Research, 2011.
3 Domestic LED lighting/application availability and business strategy, industry, Industry economy research, 2013.
4 Urban agriculture and plant status and future prospects of plant, ISSUE QUEST, 2013.
5 Filament bulbs such as research and analysis of relevant foreign regulatory research project report, KEMCO, pp. 6-7, 2013.
6 Se-Hwan, Jhin, "Comparative analysis of the LED A-19 lamp for Suitable Replacement of 60W light bulb", KIIEE Annual Spring Conference 2012, pp. 105-108, 2012.
7 KS C 7651, Self-Ballasted LED lamp converters safety and performance requirements, 2013.