• Title, Summary, Keyword: Lighting

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A Study on the Tendancy of Architecturalizing in lighting for a Residential building - Focus on the Interior Magazine from 2000 to 2009 - (주거공간조명의 건축화에 관한 연구 - 2000년부터 2009년까지 인테리어잡지를 중심으로 -)

  • Kim, Su-Jung;Lee, Sung-Me
    • Korean Institute of Interior Design Journal
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    • v.20 no.1
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    • pp.61-70
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    • 2011
  • Based on the trend of architectural lighting of residential building, this study is to examine architectural lighting for residential buildings, and deduce the value and significance of architectural lighting by analyzing architectural lighting and characteristics of residential building through the analysis of works according to the types of works and by analyzing discourse relating to works of architectural lighting of residential building. First, architectural lighting for residential buildings can be categorized according to continuity and extensibility, lighting method and lighting factor. Second, architectural lighting of residential building has come into play since 2000 due to diversified activities at home. Third, architectural lighting had been introduced for living room and used in the form of structure or foundation up until early 2000s, but since mid 2000s, it has been used in intellectual and abstract form using various shapes, finishing material or objects. Fourth characteristic is a space of changing functions overcoming limited space, suggesting an alternative space, and using finishing material and object.

The characteristics research of lifetime for metal-halide and led lamp (메탈핼라이드 램프와 LED램프 수명특성 분석연구)

  • Lee, Se-Hyun;Shin, Sang-Wuk;Rho, Jae-Yup;Kwon, Ki-Tae;Choi, Seok-Joon;Lee, Jeong-Keun;Seo, Jeong-Jin;Lee, Gyu-Seoung;Hwang, Myung-Keun
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • pp.85-88
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    • 2009
  • In this paper, We has been studied the lifetime degradation of LED lighting system compared to MH lighting. Especially the effect of temperature level on the lifetime degradation has been investigated. The results show that temperature plays a role in the lifetime degradation and slope of degradation line represent as temperature level differently. However, It is possible to estimate the lifetime of LED lighting system using equation induced the slope of degradation line.

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Daylighting Performance of Topside Lighting Systems for Different Orientations (방위에 따른 정측창 시스템의 채광성능 평가)

  • Kong, Hyo-Joo;Lee, Jin-Seoung;Ahn, Hyun-Tae;Kim, Jeong-Tai
    • Journal of the Korean Solar Energy Society
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    • v.29 no.1
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    • pp.11-17
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    • 2009
  • Daylighting is core of sustainable design in most buildings. Well-designed daylighting systems can significantly reduce or even eliminate the electric lighting loads during the day time, including air conditioning energy loads. Among window systems. the topside lights systems including monitor lighting, sawtooth lighting, sunscoop and, lightscoop is one of the most popular apparatus to improve the lighting quantity. Also they are important both in terms of energy savings and visual quality. The objective of this study is to analyse daylighting performance of topside lighting system for different orientations. Four types of topside lighting system were tested and comparpd: monitor lighting, sawtooth lighting, lightscoop and sunscoop. Totally 25 measuring points of illuminance on the horizontal plane were monitored from 09:00 to 17:00 on October 6, 2008. Agilent data logger and photometric sensors Li-cor were used. Comparisons with a light factor is discussed. The results found in this study would mean that there were no significant differences in light factor between three cases.

Shifting and Automated Replacement of Lighting Devices for LED Stage Lighting (조명장치의 이동과 자동 교체가 가능한 LED 무대조명 시스템)

  • You, In-Hwan;Lee, Bo-Hee;Song, Hyun-Sun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.9
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    • pp.1-7
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    • 2011
  • A performance delivers the contents and feeling through human bodies and stage settings in the limited space of a stage. Among the stage settings, the lighting creates overall atmospheres effectively according to the situations of the performance such as a time flow, a change of seasons, an expression of the mental state of the performer. As the LED lighting is used more widely, the number and the size of the lighting is being decreased, which makes it possible for various devices to be used. However, just as conventional lighting devices, most of them are fixed. So it is difficult to use them at a blind spot and to replace them. To solve this problem, this article suggests a system which replaces lighting automatically and moves. As it can moved to a spot we want on a rail, and the lighting system can be replaced by itself, it can have various lighting effects, increasing the effectiveness of the performance. Additionally, it can also decrease the danger of a worker operating the lighting device located at a high place. At the mock-up experiment, its mobility and stability on a rail were tested using the wheel of the Modular Robot.

Study on full color RGB LED source lighting for general lighting and Improvement of CRI (Color Rendering Index)

  • Park, Yung-Kyung
    • Science of Emotion and Sensibility
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    • v.15 no.3
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    • pp.381-388
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    • 2012
  • The purpose of this study is to check if LED lighting can be used as general lighting and examine the color rendering property of full color RGB LED lighting. CRI is one of the important properties of evaluating lighting. However the present CRI does not fully evaluate LED lightings. Firstly, the performance of a simple task was compared other than comparing CRI values for different lighting. For experimental preparation three types of lightings were used; standard D65 fluorescent tube, general household fluorescent tube, and RGB LED lighting. All three lightings show high error for Purple-Red. All three lightings show similar error for all hues and prove that color discrimination is not affected by the lighting. This proves that LED could be used as general lighting. Secondly, problems of the conventional CIE CRI method are considered and new models are suggested for the new lighting source. Each of the models was evaluated with visual experiment results obtained by the white light matching experiment. The suggested model is based on the CIE CRI method but replaces the color space model by CIELAB, color difference model by CIEDE2000, and chromatic adaptation model by CAT02.

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The Effects of Music Intervention upon Lighting on Autonomic Nervous System (조명에 따른 음악활동이 자율신경계에 미치는 영향)

  • Oh, Hyewon;Lee, Hyejin;Kim, Minho;Kim, Dongkwan
    • Journal of The Korean Society of Integrative Medicine
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    • v.1 no.1
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    • pp.11-22
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    • 2013
  • Purpose : The purpose of this study was to investigate the effects of music intervention upon lighting on stress. Method : The participants 60 college students, were divided three groups. Two groups were apply each music and bright lighting(bright lighting groups) and music and dark lighting(dark lighting groups) during 13minutes at Snozelen and the other group was control group. Each groups were assessed stress resistance, activity of parasympathetic nerve, activity of sympathetic nerve, balance of ANS, physical arousal by EKG of CANS 3000, at before and after other each intervention. The analyses were performed using version of SPSS 17. Result : The change rate of bright lighting group was showed statistically significant decrease in stress resistance compared to control group. And the change rate of dark lighting group was showed statistically significant decrease in resistance stress, activity of parasympathetic nerve, and balance of ANS compared to control group and statistically significant increase in stress resistance and activity of parasympathetic nerve compared to bright lighting group. Conclusion : The results of this study indicate that music intervention on dark lighting is more effective on decrease of stress than application of bright lighting and general lighting.

Predicted Performance of the Integrated Artificial Lighting System in Relation to Daylight Levels (채광시스템과 인공조명설비의 통합기술 및 성능평가연구)

  • Kim, G.;Kim, J.T.
    • Journal of the Korean Solar Energy Society
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    • v.22 no.3
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    • pp.47-56
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    • 2002
  • The office is an excellent candidate for implementing daylighting techniques because of the relatively high electric lighting power densities and long daytime use pattern. The quantity of light available for a space can be translated in term of the amount of energy savings through a process of a building energy simulation. To get significant energy savings in general illumination, the electric lighting system must be incorporated with a daylight - activated dimmer control. A prototype configuration of an office interior has been established and the integration between the building envelope and lighting and HVAC systems is evaluated based on computer modeling of a lighting control facility. First of all, an energy-efficient luminaire system is designed for both a totally open-plan office interior and a partitioned office. A lighting design and analysis program, Lumen-Micro 2000 predicts the optimal layout of a conventional fluorescent lighting fixture to meet the designed lighting level and calculates unit power density, which translates the demanded amount of electric lighting energy. A dimming control system integrated with the contribution of daylighting has been applied to the operating of the artificial lighting. Annual cooling load due to lighting and the projecting saving amount of cooling load due to daylighting under overcast diffuse sky are evaluated by a computer software, ENER-Win. In brief, the results from building energy simulation with measured daylight illumination levels and the performance of lighting control system indicate that daylighting can save over 70 percent of the required energy for general illumination in the perimeter zones through the year. A 25 % of electric energy for cooling may be saved by dimming and turning off the luminaires in the perimeter zones.

Effect of Different Lighting Sources on Behavior and Growth of Weanling Pigs

  • Glatz, P.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.2
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    • pp.280-287
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    • 2001
  • These studies aimed to determine how lighting might be used to improve feed intake and reduce aggressive behavior in newly weaned pigs. To examine whether this objective could be achieved an experiment was conducted to compare performance, behavior and body condition of weaners over 17-45 days, provided similar lighting quality (i.e. color temperature, color rendering index and lighting distribution) after weaning that piglets experienced prior to weaning. Triphosphor (TP) lighting to simulate daylight was provided during the day while at night, Pascal red (PR) lighting was provided to simulate the night-light piglets previously had received from infrared heating lamps. This treatment was compared to weaners provided conventional cool-white fluorescent light during the day only. Weaners on treatment lighting from 17-45 days of age showed no improvement in body weight or feed conversion at 24, 31, 38 and 45 days compared to the controls. There was, however, a significant improvement (p<0.05) in feed intake in the first week of weaning for weaners provided TP/PR lighting. Over the first 3 days of weaning, pigs on TP/PR lighting showed an increase (p<0.05) in the incidence of ear chewing but reduced (p<0.05) levels of nosing the abdomen of other pigs and reduced (p<0.05) occurrences of being stood on by other pigs. Females exhibited more (p<0.05) mounting and nosing behaviors and rubbing the heads of other pigs than males. On the other hand, males engaged in more (p<0.05) fighting, nipping, ear chewing and standing on other pigs compared to females. Pigs provided PR lighting on the first night of weaning engaged in higher (p<0.05) incidences of nosing and tail sucking behaviors, more (p<0.05) head thrusting, fighting and ear chewing compared to control pigs. The body condition of weaners provided the TP/PR lighting treatment was significantly poorer (p<0.05) compared to weaners on control lighting. In conclusion there was no improvement in production performance of weaners provided new technology lighting apart from the improvement in feed intake in the first week weaners were exposed to the TP/PR lighting.

An Analysis on the Luminance Distribution and Subjective Responses on Image of Historic Buildings Illuminated by Outdoor Lighting - Focused on the Namdaemun, Kwanghwamun, Changanmun and Paltalmun - (야간경관조명이 된 역사적 건축물의 휘도분포 및 주관적 반응 분석 - 남대문, 광화문, 장안문, 팔달문을 중심으로-)

  • Ahn, Hyun-Tae;Jeong, in Young;Kim, Jeong Tai
    • KIEAE Journal
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    • v.4 no.2
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    • pp.29-36
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    • 2004
  • Designing outdoor lighting on landmarks has been activated in Korea since 2002 World Cup. And outdoor lighting has been important method to create nighttime activities. Especially, historic buildings which are illuminated by outdoor lighting expresses cultural beauty of the heritages in the region. Therefore, this study aims to analyze the outdoor lighting effect of historic buildings with particular reference to four historic buildings - Namdaemun, Kwanghwamun, Changanmun and Paltalmun. For the purpose, luminance of outdoor lighting are measured. Outdoor lighting of the historic buildings were mainly illuminated by the floodlights. In addition, up-lighting and accent lighting were used for expressing the bracket structure. Basements and rooflines are emphasized by floodlighting, and they represented the night image of historical buildings. For the subjective evaluation on the outdoor lighting of historic buildings, outdoor lighting images of four historic buildings - Namdaemun, Kwanghwamun, Changanmun and Paltalmun were photographed. Questionnaire surveys were conducted by hundred and twenty university students of architectural department And collected papers were statistically analyzed by SPSS. Factors that shows outdoor lighting images of historical buildings are as follows; atmosphere, clearness, intimacy, modelling. On the question of general impression of outdoor lighting, Kwanghwamun has got the most satisfactory responses and the next is Changanmun and Namdaemun, Paltalmun. Major variables which related to the 'general impression' of outdoor lighting for historic buildings have been 'dignity', 'match', 'elegance', 'beauty' in the order.

A Study on the Lighting Environment of Living Room and Kitchen in Apartment Houses (아파트 거실과 주방의 조명환경에 관한 연구)

  • Lim, Mann-Taek;Kwon, Chang-Yong;Kim, Hyun-Tae
    • Journal of the Korean housing association
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    • v.18 no.1
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    • pp.35-42
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    • 2007
  • This study aims at examining the actual conditions of lighting environment and the consciousness and responses of residents with the living room of apartment house, grasping the problems of existing lighting methods, offering the lighting environment design standard in harmony with the various demands of residents, functions of living room space, life in living room and interior decoration and then pursuing the comfortable living environment. As the scope and methods of research for these, existing research methods are examined through the consideration of preceding researches and the basic outline of this research is constructed. Questionnaire survey is conducted with six apartment complexes including Kumho district, Munhung district, Sangmu district, Unnam district, Ilkok district and Chumdan district, the problems and improvements of lighting environment conditions are examined, conception and selection of lighting equipment design image are made, lighting equipment design of living room is suggested and the expected effects of lighting equipment ordering method are arranged as follows. As a result of examining and analyzing the lighting environment of living room in existing apartment houses, it is known that the conditions of existing lighting environment considered uniform lighting plan for functional sides of each room which didn't consider the various living behaviors and preference of residents and while the degree of interior decoration design is actually positive. Accordingly it seems that the lighting equipment ordering which considers the various preferences of residents is applied as the means for comfortable lighting environment, the interior environmental mood will be greatly improved.