• 조명전기설비학회논문지
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• 제26권4호
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• pp.1-5
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• 2012

By using LED optical devices and improving the efficiency of optical devices as well as lighting apparatus for humans, LED lighting industry puts the purpose of manufacturing the main products related with information, electric, large-sized LCD BLU, automobile, shipbuilding, agriculture, medical treatment, environment, and telecommunications, etc. Moreover, the main products and the industrial lighting products are manufactured with fusion, as the result, LED lighting industry provides various effects as well as sources of technology based on practical use of LED technology in order to develop the industry from the perspective of the lower price, the higher efficiency, the higher function, the deeper reliance. In the future, not only the development of new LED technology but also the fusion and combination of digital IT technologies using wire-wireless communication, sensor, controller, and artificial intelligence will be expected to create new industrial fields.

• 광산업정보
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• 통권56호
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• pp.58-60
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• 2009

• 광산업정보
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• 통권62호
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• pp.60-62
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• 2011

• 조명전기설비학회논문지
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• 제27권12호
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• pp.28-37
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• 2013

This paper focuses on the domestic illumination research trends in 2012 based on reviewing the published papers in the Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. It classifies and resumes the papers in five themes including exterior lighting, interior lighting, LED/OLED, optical device and optical fiber, and lighting industry. By comparatively studying a large number of papers published in Japan, North America, and China in the same year, the international illumination research trends are also figured out and further academic research topics are suggested.

• 한국주거학회논문집
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• 제5권2호
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• pp.119-127
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• 1994

This study has tried to grasp the awareness of employees in current apparel industry and common consumers about the show window in apparel shops. Interestingly, the employees were more concerned about the necessity of display and lighting than the consumers. However, the current display and lighting systems did not satisfy the consumers' requirements. Although they did not recognize that lighting display was closely related with display, color, and so on, they thought lighting indispensable. In consequnce, they light source and lighting method have to be carefully chosen, and the relationship between color and lighting should be fully considered as well.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 학술대회 논문집 전문대학교육위원
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• pp.141-146
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• 2006

According as level of industry develops day after day, electricity load system of industry requires high level control, effectiveness and high efficiency. Among supply and control unit of suitable power supply in these load characteristic, inverter systems of constant current regulate is used widely control of lighting and electric heating system. Therefore, in this paper proposed an inverter systems with constant current regulation and power factor correction (PFC) circuit for Lighting and Beaconing of Aerodromes. The effectiveness of the proposed system confirmed through experimental results of CCR.

• 한국산업융합학회 논문집
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• 제7권1호
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• pp.13-18
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• 2004

This study investigates actual conditions and awareness of employees female apparel shops within department store in seoul area. Investigating the actual conditions of the lighting indicated that the employees thought that the lighting charged much expenses to them, and the effort to improve the efficiency of current lighting was insufficient for lack of en expert knowledge on the lighting. The average space size of apparel shops were 11.7평, the light source was most frequently used fluorescent lamp and halogen lamp. The illuminance was the most highest nearby wall display(average 1089lx), and nearby hanger(average 1075lx).

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2005년도 학술대회 논문집
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• pp.147-150
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• 2005

Fixed lighting of public ways for both vehicles and pedestrians can create a nighttime environment in which people see comfortably and can quickly and accurately identify objects on the roadway being travelled roadway lighting can improve traffic safety, achieve efficient traffic movement and promote the general use of the facility during darkness. The design of a roadway lighting system involves consideration of visibility, economics, esthetics, safety and environmental conditions. This paper describe estimation of horizontal illuminance by actual measurement at main streets in Jejusi. We try to evaluate Jejusi Roadway Lighting Conditions for modeling by computer simulation.

• 한국전기전자재료학회논문지
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• 제37권5호
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• pp.486-493
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• 2024

Lighting has been used for a long time as a medium to convey brightness from darkness, and through incandescent lamps and fluorescent lamps, LED light sources have now become the standard in the lighting industry. Recently, the lighting equipment industry has been undergoing rapid digital transformation, starting with smart lighting, and is evolving into smart lighting customized for individuals and spaces through the development of IoT technology, cloud-based services, and data analysis. However, the blue light emitted from digital devices (computers, smartphones, tablets, etc.) or LED lights stimulates the melanopsin in the optic ganglion cells in the retina of the eye, which in turn stimulates the secretion of melatonin through the pineal gland, which regulates the secretion of melatonin. This can reduce sleep quality or disrupt biological rhythms. This interaction between blue light and melatonin has such a significant impact on human sleep patterns and overall health that it is essential to reduce exposure to blue light, especially in the evening. Human-centered lighting refers to lighting that takes into account the effects of light on the physical and mental areas, such as human activity and awakening, improvement of sleep quality, and health management. Many research institutes study the effects in the visible area and the non-visible area. By studying the impact, it is expected to improve the quality of human life. In this study, we plan to study ways to implement human-centered lighting by collecting sunrise and sunset data and linking commercialized LED packages and control devices with open-source hardware.

• 전기학회논문지
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• 제56권12호
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• pp.2150-2156
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• 2007

According as level of industry develops day after day, electricity load system of industry requires high level control, effectiveness and high efficiency. Among supply and control unit of suitable power supply in these load characteristic, inverter systems of constant current regulate is used widely control of lighting and electric heating system. But, problems that power factor deterioration and fast response of control, efficiency, harmonics and etc are still remain. Therefore, in this paper proposed an inverter systems with constant current regulation and power factor correction (PFC) circuit for lighting and beaconing of aerodromes. The effectiveness of the proposed system confirmed through experimental results of 10[kW] power supply system.