• 조명전기설비학회논문지
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• 제18권2호
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• pp.1-7
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• 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.

• 한국태양에너지학회 논문집
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• 제32권3호
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• pp.50-58
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• 2012

The objective of this study is to evaluate the lighting dimming rates with various parameters of the building skin in a small office. We compared to simulated workplane illuminance and measured workplane illuminance for the base model. After that, the five veriables(the presence of vertical wall in double skin facade, the presence of windowsill, window to wall ratio(WWR), window visible transmittance, the width of double skin facade) were applied to base model, and we analyzed the simulated lighting energy saving rates. The results are listed as below. The simulated workplane illuminance results are similar to the measurement. Simulated illuminance was smaller than measured illuminance by 16.5%(60 lx). In accordance with applicable building skin parameters, lighting energy saving rate results are summarized as follows. Lighting energy saving rate of case1(windowsill height 0.7m) is higher than that of base case(windowsill and vertical wall) by 7.3% and the lighting energy saving rate of case2(no vertical wall) is higher than that of base case by 7.6% and the lighting energy saving rate of case3(no windowsill and vertical wall) is higher than that of base case by 12.4%. The lighting energy saving rate is increased by 2.3%, when window visible transmittance is increased from 70% to 86%. The lighting energy saving rate is increased by 4.6%, when we changed the WWR 70% to 90%. lighting energy savings rate is increased by 6.5%, when the width of double skin facade is reduced from 1m to 0.3m.

• 한국태양에너지학회 논문집
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• 제23권3호
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• pp.73-80
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• 2003

The purpose of this study was to analyze daylighting performance in a semi-infinite size office space for lighting energy conservation. DOE2.1E was used for simulations for the model space of $12\times12\times2.6m$. Nomographs were developed which could simulate work plane illuminance, glare index, energy consumption rate and energy reduction rate for daylighting design. Major results of simulations are as follows ; 1) When blinds facing south were installed, 43% of workplane illuminance diminished, but the flare index didn't exceed the recommended max-glare value. 2) In a semi-infinite office space facing south. energy consumption rate in the case space of 500 lux workplane illuminance is larger then case space of 300 lux workplane illuminance. Therefore, energy reduction rate is increased when the semi-infinite office faces south and naintains 300 lux workplane illuminance level.

• Industrial Engineering and Management Systems
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• 제9권2호
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• pp.157-164
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• 2010

The objective of this study is to determine the dominance effects of environmental factors such as Illuminance, humidity and Wet Bulb Globe Temperature (WBGT) on the operators' productivity at Malaysian electronic industry. A case study was carried out at an electronic components assembly factory. The environmental factors examined were the Illuminance (lux), humidity and WBGT of the surrounding workstation area. Two sets of representative data including the illuminance, humidity and WBGT level and production rate were collected during the study. The production rate data were collected through observations and survey questionnaires while the illuminance level was measured using photometer model RS 180-7133, the humidity and WBGT level were measured by using Quest Temp apparatus and humidity. Taguchi Method was utilized to find the sequence of dominant factors that contributed to the productivity of operator at that specified production workstation. The study reveals that the dominant factor contributed to the productivity was WBGT, followed by illuminance and humidity.

• 한국도서관정보학회지
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• 제48권4호
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• pp.1-20
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• 2017

공공도서관의 가장 중요한 정체성은 지역주민의 지식정보에 대한 접근과 이용을 보장하는 공공재이다. 이를 정당화하려면 도서관은 최적의 조명환경을 구비해야 한다. 특히 시각을 통한 정보인지 비율이 80% 이상인 점을 감안하면 적정조도를 확보하는데 방점을 두어야 한다. 이에 본 연구는 대구지역 공공도서관을 대상으로 조도수준을 측정 분석하였다. 이를 바탕으로 공간별 조도수준을 제시하고, 적정 조도를 확보 유지하는 방안(국가표준 조도기준(KS A 3011)의 전면개정, 관할주체인 자치단체의 법규에 조명기준 및 공간별 조도범위 설정, 기존 조명기구의 LED로 교체, 조명관리에 대한 감독기능 강화, 운영주체인 도서관의 적정 조도 확보 유지를 위한 기본원칙 수립과 공간별 세부방안 마련, 이용자의 불만사항과 만족도 등에 대한 주기적 조사와 반영)을 제안하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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• pp.99-104
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• 2011

Daylighting system is an alternative to the energy crisis and environment change. And it is possible improvement system of Architectural Space Environment. Accordingly, it is very useful system. Because Daylight Duct System of Daylighting System gives high performance for its price, distribution rate is very high. But Daylighting Duct System is hard to accurate control. Accordingly, it is difficult to maintain continuously Daylight Environment in Interior Spaces. Lighting Diffusion System has been developed that it is Applying the principle of Reflector and prism diffuser for maximize the efficiency of lighting of Daylight Duct Systems through this study. And then compare lighting performance of Existing System and new Lighting Diffusion System through producing a mock-up. Thus, this study was carried out for the purpose of verification for excellence. It is that installed Each Daylighting Duct System for performance evaluation in a laboratory of width 4m, length 10m, height 2.5m. And illuminance was measured at noon on winter solstice(December 22) under clean sky. The actual measurement result was in the following. Newly developed lighting Diffusion system was measured maximum illuminance 399, minimum illuminance 221, average illuminance 141. Synthetically, daylight factor, uniformity factor and illuminance distribution were improved more than existing system. As a result, it was confirmed that was improved lighting Environment in Interior Spaces.

• 수산해양기술연구
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• 제47권4호
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• pp.316-326
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• 2011

In this study, the entrapped number is investigated on the UV light with different illuminance to fluorescent bait cage for swimming crab in order to find the appropriate illuminance which has the best attraction effect of fluorescent bait cage for pots. In addition, preference to the light, arrival time and residence time at light area are compared and analyzed to fluorescent bait cage and non-fluorescent bait cage for American lobster at the UV light and ordinary light according to the illuminance condition. Pot with red non-fluorescent bait cage at the no lighting (<0.01lux), pot with blue fluorescent bait cage at the 20W UV lighting (0.16lux) and pot with blue fluorescent bait cage at the 30W UV lighting (0.22lux) were soaked for 6 hours and the entrapped number of swimming crab was examined. The mean entrapped number of swimming crab in pot with red non-fluorescent bait cage at the no lighting (<0.01lux) was 1.0, but the mean entrapped number of swimming crab in pot with blue fluorescent bait cages at the 20W UV lighting (0.16lux) and 30W UV lighting (0.22lux) were 1.4 and 0.4, respectively (P<0.05). The rate of preference to the blue fluorescent bait cage at the UV lighting shows 1.6-4.8 times higher than that of preference to the red non-fluorescent bait cage at the ordinary lighting. In addition, The rate of preference to the blue fluorescent bait cage at the UV lighting is higher when the illuminance of ordinary light is same as or is lower than that of UV light (P<0.05). However, the preference to the light depending on gender shows no significant difference (P>0.05). The arrival time to UV light area of lobster is shown as 1.2-2.4 times faster than that to ordinary light area. Generally, it is shown that arrival time to UV light area is faster than the arrival time to ordinary light area when the illuminance of ordinary light is the same as or lower than that of UV light (P<0.05). However, arrival time to the light area depending on gender shows no significant difference (P>0.05). The residence time at UV light area of lobster is 1.2-1.7 times longer than that at ordinary light area. The residence time depending on different illuminance of ordinary light and genders showed no significant difference (P>0.05).

• 전기전자학회논문지
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• 제20권2호
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• pp.188-191
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• 2016

본 논문에서는 조도 감지기를 이용하여 사용자가 설정한 조도량에 따라 점등되는 방식의 절전형 간판 자동 전원 제어기를 제안한다. 조도량 설정 방식은 사용자의 편리성을 감안하여 조도량 단위별 구간 분류 알고리즘을 통해 설정 과정이 누구나 쉽게 조작이 가능한 가변저항 방식을 제안한다. 자동 점등의 기준이 되는 조도량의 데이터는 조도 감지기가 측정한 조도량을 무선 통신을 통해 간판 자동 전원 제어기에 보내어 간판의 점등을 제어하게 된다. 본 논문에서 제안된 조도 감지기를 이용한 절전형 간판 자동 전원 제어기의 성능을 평가하기 위하여 공인 시험기관에서 외부의 빛이 모두 차단된 상태에서 시험한 결과, 각 구간별로 오차율이 ${\pm}3%$ 이하로 측정되어 우수한 성능을 나타내었다.

• 한국실내디자인학회논문집
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• 제13권4호
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• pp.196-203
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• 2004

In The Lighting design is important to acknowledge appearance space. Development of artificial light makes a extension to life space in the Modern life. With the rapid development of efficient light sources, have lighting design acquired the tools that allow artificial lighting to be produced with adequate illuminance levels. However, by the task of defining the objectives and methods behind discipline, of deciding on the criteria by which the artificial lighting that is now provide many available data to be anpaied. The main concern is which illuminace levels and types of lighting will ensure optimum visual performance, high productive and safety at design which are affordable. This study is support to standard design process with material reflection rate, installing the lighting fixture, task illuminance level and automatic arithmetic calculation during the lighting design. Lighting Design database can check and support other final lighting level. A quantitative light that is primarily oriented toward providing a recommended illuminance level, the criterion of develop a concept that goes beyond the requirements that would ensure productivity and safety to meet the needs of the architecture and interior space. illuminance level is compose to space task and space code according to KS A 3011. To be able to design the visual effect of an environment the central reference quantity has to provided the Database.

• 한국환경생태학회지
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• 제29권3호
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• pp.441-453
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• 2015

본 연구에서는 서울 도심 내 야간 인공 조명의 조도에 따라 수목 개화율과 잎 생장률이 차이가 있는 지를 규명하기 위한 사례 연구로 수행되었다. 조도는 총 26개소에서 78개 지점에서 측정하였고, 조도와 토지이용현황을 고려하여 3개 그룹으로 구분하였으며, 그룹 A(조사구 1~7)의 조도 범위는 4.90~112.50 lx, 그룹 B(조사구 8~18)의 조도 범위는 0.45~42.40 lx, 그룹 C(조사구 19~26)의 조도 범위는 0.28~22.10 lx이었다. 조도 차이 일원배치 분산분석 결과 그룹 A, B, C로 분류되었다. 수목 개화율은 왕벚나무와 철쭉류 각 30개체, 수목 잎 생장률은 느티나무, 은행나무, 단풍나무 각 30개체를 선정하여 조사하였다. 수종별 일원배치 분산분석 결과 연구대상 수목 중에서 개화율은 철쭉류, 잎 생장률은 단풍나무가 세 개의 그룹으로 분리되어 상대적으로 조도 차이에 따른 수목 영향 지표종으로서 유용한 것으로 판단되었다. 그룹별 평균 조도와 수목의 개화율 및 잎 생장률 간 상관관계 분석결과 유의성이 인정되어 조도가 높을수록 수목의 개화 및 잎 생장이 빨라지는 경향이 있는 것으로 판단되었다. 향후에는 야간 조명의 빛공해 수준별로 수목에 어느 정도 영향을 미치고 있는 지에 대한 보다 구체적인 연구가 이루어져야 할 것이다.