• 한국태양에너지학회 논문집
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• 제32권6호
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• pp.100-105
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• 2012

In previous study, to investigate the impression of the compound lighting based on the AC-Model at the full-size room, the impressions of various compound lighting were completed as compared with that of the uniform lightings through the comparison method (a paired comparison) by Semantic Differential scaling. Also, we examined the effect of the supplementary lighting type increasing the lights at the side of the window and the blind-control lighting type, and they were compared with the existing compound lighting type. In results, pared comparison of the compound lighting and the uniform lighting, indicates that the impression of the compound lighting is generally similar to that of the uniform lighting when there are same ratios of the light from the window. Based on these results, we suggest that the AC-Model might be applied to various conditions. And we also introduce the method for daylighting that it is possible to reduce discomfort glare and to improve visual impressions as the supplementary type and blind-control type on the compound lighting. And it was found that electric power consumption of the compound lighting room was lower than that of the uniform lighting room when as same lighting ratio of the compound lighting and the uniform lighting from the window was provided or there was the lighting distribution simulated to same light ratio from the window. Since the method of the ACModel was described in the experimental condition, additional studies should be performed to determine if this model could be applied to different window configurations, lighting layout and types of a room.

• 한국조명전기설비학회지:조명전기설비
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• 제10권3호
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• pp.43-46
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• 1996

본 연구는 국내 지하상가시설의 부하특성과 수요증가현황, 조명용 변전시설밀도 등을 실축, 조사하여 합리적이고 통계적인 조명용 변전용량의 적정 설계를 위한 기준을 설정하여 제시하며, 조명설비의 합리벅 설계에 의한 전기설비 사용 합리화를 도모하고자 한다.

• 한국주거학회논문집
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• 제2권2호
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• pp.13-20
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• 1991

The purpose of this survey is to find out the problems in lighting conditions of Korean residence and bring up the improvement direction. 120 households were chosen at random among independent house and apartment house in Taejon for this survey.The results are as follows; 1) The illumination of apartment houses are 2/3 of the recommended illuminalion and that of Independent houses are 1/2 of the recommended. Thus, apartment houses have better lighting condition. 2) 7he average illumination level is improving, but it still does not reach the recommended level. Therefore, the considerable plan to maintain proper lighting levels and suit to the 1;ghting purposes is required.

• 한국산업융합학회 논문집
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• 제17권3호
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• pp.184-193
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• 2014

Machine vision systems is applied for various industries such as optimize your spending, automate your production and maximize your efficiency. This research is effective for most optimal light condition of machine vision that technology was applied bald outside human visual acuity. Image processing converts a target image captured by a CCD camera into a digital signal and then performs various arithmetic operations on the signal to extract the characteristics of the target, such as points, lines, circles, area and length. The mathematical concepts of convolution and the kernel matrix are used to apply filters to signals, to perform functions such as extracting edges and reducing unwanted noise. This research analyze and compares matching ratio with reference image and search for optimal lighting condition in accuracy that user wants coming input image according to brightness change of lighting.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2006년도 춘계학술발표대회 논문집
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• pp.278-283
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• 2006

For the company, the office space is the expensive resource next to human resource. Employees are under the influence of physical characters of the office space. Among them lighting is the most effective factor in physical, biological and psychological for employees. Although there are lots of investments in architectural aspect of the office space, there is almost no investment and consideration about the lighting environment. Therefore this study was trying to find out these things as follow. First, evaluate lighting environment of people who works in the office spaces. Second, find out which factors are more affective in evaluation of lighting environment. And then with these findings this study found what should be considered as important in lighting planning of the office space. As the result of this study, however the majority of the employees are satisfied with current lighting conditions, they are not satisfied with individual operation of lighting. And in office space work type and position changes by age can affect in a large degree more than other factors. Therefore when planning lighting of the office space, it is necessary to figure out work features of Individual and group exactly and accept the difference by positions appropriately.

• 한국인터넷방송통신학회논문지
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• 제14권3호
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• pp.147-153
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• 2014

본 논문에서는 안드로이드 플랫폼 기반의 스마트 감성조명 제어 시스템을 제안한다. 제안된 스마트 감성조명제어 시스템은 안드로이드 플랫폼, 감성조명 장치, 확장 디바이스와 지그비 모듈을 사용하였다. 안드로이드 플랫폼 기반의 스마트 감성조명 제어 시스템은 조도센서를 이용하여 자동제어와 수동제어 선택이 가능하며, 원하는 조명만을 선택하여 부분적인 제어도 가능하게 설계하였다. 제안된 스마트 감성조명 제어 시스템의 실험 결과 필요로 하는 부분의 조명기기 제어와 색온도 가변에 의한 제어가 가능하였고, 감성어휘에 의한 가변점등으로 효율적으로 기존 감성조명 제어 시스템보다 전력 소비를 감소시켰다. 그리고 상황에 적합한 색상과 밝기를 제어하여 사무실에서 행위를 함에 있어 집중력과 업무능력 향상에도 효과적인 제어가 가능하였다.

• 한국실내디자인학회논문집
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• 제18권5호
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• pp.89-100
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• 2009

Stage lighting system is very important in theater. Because basic of performing art. Recently, The stage lighting system is very close with a performing arts. The performance arts is to have an easy communication between actors and audience. All activities related to performance art take place between the stage light and auditorium. Therefore, when constructing theater the best conditions of the stage light system should be considered for the smooth progress of play. It will be method of solution that basically facility in the performance art hall. The results of this study can be used for suggesting an operation and system improvement for stage lighting system in performance art hall. Recently, changes in the progress of plays have required the perfect stage light system. As a result, performance art hall are the most advanced stage lighting system technology of changed. The following procedures were taken for this research-the literature on the development of stage lighting system and equipment, structure, and the dimmer and computer console system has been reviewed theoretically Most of all, Cheonan City Hall Bongseo Hall and CMB EXPO art hall is important a sample of lighting system. The result of this study presents operation and system improvement stage lighting system in theater, below to operation and system improvement at stage lighting system local self-government corporation performance art hall are inconsistent stage.

• 대한건축학회논문집:계획계
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• 제35권1호
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• pp.99-106
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• 2019

This study aims to recommend the proper Color rendering index (CRI), the Correlated Color Temperature (CCT), and illuminance levels of Light-Emitting Diode (LED) lighting based on the analysis of the criteria of the current CRI, the CCT, and illuminance levels in merchandising spaces with LED lighting conditions. It would be a basic material to apply in line with user preference for LED merchandising lighting. To this end, it examines relevant literature review on the experiments designed to test whether lighting characteristics affect brightness perception, color appearance, and pleasantness. Highly saturated colors appear brighter than low saturated colors. Two lighting applications - grocery and clothing shop - were created in elaborating the effect of LED lighting characteristics of CRI on color appearance and the CCT and illuminance on pleasantness. The findings show that the criteria of CIE Ra<80 are appropriate to provide better color appearance of illuminated products in terms of LED lighting that can enhance color saturation, particularly for the red color. Furthermore, 2700 K and less than 500 lux for grocery, 4000 K and more than 500 lux for clothing shop are found to be the proper the CCT and illuminance levels respectively to bring better preference under LED lighting.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1998년도 춘계학술대회논문집
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• pp.194-199
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• 1998

The purpose of this study is conducted to evaluate the psycho-physiological effects of the dynamic lighting on VDT workers and to establish the dynamic lighting design guides. The main experimental factors are changes of illuminance. There were five conditions including 1) ripid change, 2) slow change at 300lx .approx. 500lx, 3) a static illuminance level at 300lx, and 4) rapid chante, 5) slow change at 200lx .approx. 300lx. The ranges of change were set typical illuminance level for the simple visual task requirement and reasonable to a VDT task ; 200-300-500lx. The psycho-physiological measurements used were EEG, R-R interval, CFF, near point accommodation, feeling perceived fatigue, and work performance. Analysis of psycho-physiological factors shows that higher illumination level conditions are more affirmative effects than lower on VDT workers under 500lx except for the results of feeling perceived fatigue. And about the speed of changes of illuminance level. The conditions of slow change were better than the others in terms of the work performance as well as psycho-physiological results.

• 조명전기설비학회논문지
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• 제25권2호
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• pp.43-52
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• 2011

LED lighting may cause different sensation and color appearance due to the different spectral power distributions compared to those of conventional lightings. Particularly, the CCT (Correlated Color Temperature) of LED lighting has a major effect on color appearance so that this study conducted an experiment through a subjective evaluation and luminance measurement for effective color appearance in a space. This study performed a subjective evaluation under the seven different LED CCT conditions, and color appearance was evaluated with major five colors in a customized lighting box. In addition, luminance measurement was conducted for each CCT and color condition to compare the results from a subjective evaluation. The results of this study may help to select a proper LED CCT for specific color conditions.