• 제목, 요약, 키워드: Lighting

검색결과 3,441건 처리시간 0.049초

Empirical Evaluation of Optimal User-Centered LED Lighting Environments in Residential Bathrooms

  • Lee, Jeongmin;Choi, Kyungah;Suk, Hyeon-Jeong
    • 감성과학
    • /
    • v.16 no.3
    • /
    • pp.305-310
    • /
    • 2013
  • This user-centered research aims to empirically evaluate color temperature (K) and illuminance (lx) of residential bathroom lightings to determine the most optimal lighting conditions for productive task performance as well as for satisfying users' emotional needs. Using 3 LED lighting fixtures, 4 types of lighting contexts were investigated; main lighting, task lighting, shower lighting, and bath lighting. Two lightings were installed parallel to the vertical edges of the main bathroom mirror to be used as main and task lighting, while another fixture was installed above the bathtub to be used for shower and bathing. For each lighting context, subjects (N=54) were instructed to perform a few tasks during which time the users were exposed to different lighting conditions with color temperature ranging from 2700 K ~ 6500 K and illuminance ranging from 100 lx ~ 700 lx. Upon completing the given tasks, subjects were asked to evaluate the lighting conditions and their applicability for performing the given tasks. Based on the user evaluations, the most optimal lighting conditions for the different lighting scenarios are as follow: 1) 3500 K ~ 4300 K and 150 lx for main lighting, 2) 3500 K ~ 4300 K and 500 lx ~ 700 lx for task lighting, and 3) 2700 K ~ 3500 K and 100 lx ~ 150 lx for shower/bath lighting. These results can be used to adjust the lighting standards suggested by KS, as well as be utilized by both engineers and designers in designing new types of user-centered bathroom lightings.

  • PDF

한국·중국·일본의 도시경관조명 현황 및 정책 분석 - 서울, 상하이, 요코하마를 중심으로 - (An Analysis on the Outdoor Lighting Situation and Policies in Korea, China, Japan - focused on Seoul, Shanghai, Yokohama-)

  • 안현태;김정태
    • KIEAE Journal
    • /
    • v.3 no.3
    • /
    • pp.35-42
    • /
    • 2003
  • It is required impressive expression of urban night environment that makes city as the safe pleasant, convenient place for the economic activity, cultural pleasure and landmarks. This study aims to establish the proper direction to the outdoor lighting in Seoul by analyzing and comparing the lighting situation and policies among Seoul, Shanghai and Yokohama. 1986 Asian Game and 1988 Olympic Game became very important role of activation of outdoor lighting in Korea. Then, outdoor lighting were facilitated in the cultural heritages and bridges along Han river. Millenium Light Plan, Outdoor Lighting Field of Seoul Architectural Award, 2002 Lightscape Local Plan, hosting 2002 World Cup have been good opportunities for the improvement of outdoor lighting in Seoul. In China, outdoor lighting was introduced to the city of Shanghai according to the orders of the president in 1988. Outdoor lighting of Shanghai have created unique lighting with beautiful color and intensive brightness under the direction of city government. Outdoor lighting of Shanghai needs the standard of lighting design and improvement of lighting facilities. Outdoor lighting was introduced to Japan with 1964 Tokyo Olympic games. Urban outdoor lighting plan was carried out in Yokohama in 1986. In Yokohama, outdoor lighting of civilian and public facilities have been harmonized. And the city government of Yokohama established the committee of promotion of outdoor lighting in its government to support and manage the outdoor lighting with corporation of civilian organization. As the result of comparative analysis on Seoul, Shanghai, Yokohama, Seoul Metropolitan Government needs the criteria and incentive system of outdoor lighting.

도로조명 방식이 운전자 시지각에 미치는 영향 (Effectiveness of Road Lighting on Driver' Vision)

  • 정준화;이석기;김원식;이미애
    • 한국도로학회논문집
    • /
    • v.14 no.4
    • /
    • pp.125-131
    • /
    • 2012
  • PURPOSES : Road lighting facilities increase the visibility of road at night in order to improve traffic driver safety and comfort. Generally speaking, current pole lighting has a tendency to create problems of glare and flicker. The phenomenon of glare gives discomfort due to increase of scattered light, when high luminance is in driver's field of view. The phenomenon of flicker occurs due to the driver passing through discontinuous pockets of pole lighting areas. These phenomenon increase eye strain and decrease driver safety. METHODS : Low height line lighting that distributes light lower than driver's eye level has been developed and evaluated to reduce the problems linked to current pole lighting. A test was undertaken with 4 conditions(turn on the general pole lighting, turn off alternate pole lighting, turn on the line lighting and line lighting with 50% dimming). A driver written survey was conducted in order to gain driver feedback. RESULTS : Pupil size and brow frequency compared with degree in pole lighting are reduced. CONCLUSIONS : Low height line lighting environment makes drivers more comfortable than pole lighting environment and is positive lighting method in the energy saving and landscape aspect.

실내조명환경의 시각적 쾌적성 확보 및 조명부하 저감을 위한 채광제어방법에 관한 연구 (A Study on Daylight Control Method for Securing Visual Comfort and Reducing Lighting Loads on Interior Lighting Environment)

  • 한상필
    • 한국태양에너지학회 논문집
    • /
    • v.32 no.6
    • /
    • pp.100-105
    • /
    • 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.

조도 비를 중심으로 한 벽면진열대의 조명실험연구 : 형광램프와 할로겐램프를 중심으로 (A Experimental Study the Wall Lighting focus on Rate of Illuminance : in case of fluorescent lamp and hallogen lamp)

  • 김현지;안옥희
    • 조명전기설비학회논문지
    • /
    • v.18 no.2
    • /
    • pp.1-7
    • /
    • 2004
  • 본 실험은 구두매장 벽면 진열장을 연구대상으로 하여 바람직한 벽면조명환경을 제시하고자 실험을 실시하였다. 그 결과, "차별성"이 요구되는 벽면 조명은 광원 종류를 다양하게 하고 전반조명과 중점조명의 조도 비를 크게 하거나, 전반조명과 중점조명의 조도 비는 작으나 전체조도를 높게 하는 것이 효과적이었다. 또한 "명시성"이나 "정서성"이 요구되는 벽면 조명은 광원의 종류를 다양하게 하고 전반조명과 중점조명의 조도 비가 작으면서 전체조도를 높이는 것이 좋은 것으로 나타났다.

박물관 전시조명 방식을 적용한 패션 매장의 조명환경 개선에 관한 사전 연구 및 평가방법론 제안 (A preliminary Study and suggested Evaluation Methodology for the Improved Fashion Shop Lighting Design using Museum Lighting Design)

  • 고태경;김인태;최안섭
    • 조명전기설비학회논문지
    • /
    • v.29 no.4
    • /
    • pp.37-46
    • /
    • 2015
  • Lighting in a fashion shop has an effect on customers, highlights the products on the shelf, and has become more important. Even though lighting has a significant effect on customers, the studies on fashion shop lighting have primarily focused on how to create lighting which can influence customers' purchase behavior, and their awareness and expectation. On the contrary, it's been hard to find a study on a quantified fashion shop lighting plan considering customer confidence. In a current fashion shop lighting plan, display lighting is planned indiscreetly. Therefore, this study conducted an investigation of the light environment of the current fashion shop and museum exhibits lighting. Through such processes, the possibility of applying fashion store display lighting environments was investigated. Finally, for the assessment of museum exhibitions lighting applying fashion store display lighting environments, a subjective evaluation method using light simulation was proposed.

사무소를 위한 조명설계 자료의 개발과 검증 (조명에너지와 냉방부하를 중심으로) (Verification and Development of Lighting Design Data for Office in Korea (Focused on the Evaluation of Lighting Energy and Cooling Load))

  • 김은희;서승직
    • 대한설비공학회:학술대회논문집
    • /
    • /
    • pp.1043-1048
    • /
    • 2006
  • This paper aimed to verify and develop lighting design data for offices in Korea. It focused on a Korean standard office value relative to lighting density and the evaluation of lighting energy and cooling load. When planning indoor lighting design, we generally utilize the lighting density value which is set $14W/m^2$ by the ASHRAE/IES standard office value. However, the value is not appropriate to apply in Korea where higher efficiency lamps are more popular than others. For calculation of a proper lighting density of Korea, we analysed distribution curves of luminous intensity(2-lamp fluorescent lighting fixture with Parabolic) and derived the new lighting density $12.64W/m^2$ as Korea standard office value. In the simulation using this value, it was shown that lighting energy and cooling load could be reduced.

  • PDF

사무용 빌딩의 조명전력 허용기준 연구 (Decision of Lighting Power Density for Office Building Lighting)

  • 이상진;이민욱;김훈
    • 조명전기설비학회논문지
    • /
    • v.26 no.1
    • /
    • pp.22-28
    • /
    • 2012
  • To identify energy savings when comparing lighting designs or evaluating installed lighting, it is necessary to analyze the consumption of lighting power with respect to the electricity consumed and the lighting area. In Korea, however, these factors have not been considered in lighting design. In this paper, the lighting power-related standards on indoor lighting in foreign countries have been analyzed. It is determine appropriate lighting power consumption for indoor by calculating the energy consumption has been estimated in a lighting design adopted domestic luminaire used.

식물 성장용 LED조명 모듈 및 제어 시스템 개발에 관한 연구 (A Study on Development of LED Lighting Module and Control System for Plant Growth)

  • 이승민;이완범
    • 반도체디스플레이기술학회지
    • /
    • v.18 no.4
    • /
    • pp.105-109
    • /
    • 2019
  • LED lighting is used as artificial lighting for plant growth because it has high light efficiency and can radiate light of various wavelengths. In this paper, we have developed new structure LED lighting module to improve the performance of LED lighting for plant growth and proposed a lighting control system that can be controlled wirelessly. The proposed LED lighting module was fabricated using optical lens applied to tunnel light and simulated using Relux program. Results of simulation, we confirmed that the light distribution and average illuminance of the proposed lighting were improved. LED lighting control system was developed to wirelessly control R, G, B, W LED lighting according to plant type and growing season. Therefore, it is expected to provide the optimal lighting environment for plant growth and contribute to the improvement of farm productivity and convenience.

  • PDF

Elements and Structure of the Smart Lighting Design in the Office

  • Yang, Hyejin;Pan, Younghwan
    • Journal of the Ergonomics Society of Korea
    • /
    • v.35 no.1
    • /
    • pp.29-38
    • /
    • 2016
  • Objective: The purpose of this research is to extract factors affecting office lighting and their relations, and then develop a framework that helps designers research and design smart lighting systems. Background: Due to the highly specialized usages of offices, the lighting system within offices also varies according to space, work, user, etc. A framework which considers these various factors and their relations is necessary for understanding and developing smart lighting systems. Method: First we extract factors affecting office lighting conditions, and select factors that can be controlled. We then analyze and develop a structure which reflects the relations among these factors from procedural perspective. Results: We divide factors affecting office lighting into physical and social factors, and then conceptualize their relations using a circular model. We then develop our framework from procedural perspective by dividing these factors into three levels, namely Subject, Action and Object. Conclusion: The developed framework organizes various factors affecting office lighting and their relations, and helps understand the procedural and structural aspects of lighting system. Application: Our framework helps designing and refining smart lighting system for complicated office spaces by helping people understanding the overall structure of office lighting.