Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Occupants' Visual Sensitivity According to the Illuminance Fluctuations of the Office Space

사무공간의 조도 변화에 따른 재실자의 시각적 민감도 분석

  • Ryu, Ji-Hye (Convergence Institute of Construction, Environmental and Energy Engineering, Kyungpook National University) ;
  • Kim, Sung-Kyung (Convergence Institute of Construction, Environmental and Energy Engineering, Kyungpook National University) ;
  • Kim, In-Hye (Strategy Part, NED) ;
  • Hong, Won-Hwa (School of Architectural, Civil, Environmental and Energy Engineering, Kyungpook National University)
  • 류지혜 (경북대 건설환경에너지융합기술원) ;
  • 김성경 (경북대 건설환경에너지융합기술원) ;
  • 김인혜 (네드 친환경계획전략) ;
  • 홍원화 (경북대 건설환경에너지공학부)
  • Received : 2022.10.28
  • Accepted : 2023.03.09
  • Published : 2023.04.30
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Abstract

From the perspective of a lighting user, changes in illuminance can be recognized and visual fatigue increases as the range of change increases while visual satisfaction decreases. In this study, when the indoor illuminance level was controlled with four set illuminance levels of 300lx, 400lx, 500lx, and 700lx, the visual comfort of lighting users was analyzed as it relates to the measured illuminance value, illuminance preference, eye fatigue, and sensibility based on the brightness questionnaire. Visual sensitivity was derived from the change in the perceived brightness response of a lighting user according to the change in illuminance. As a result of the visual comfort analysis, the illuminance preference desired by occupants differed according to the set illuminance. The lower the setting illuminance, the clearer the tendency to prefer bright illuminance. There was a difference in the degree of eye fatigue affected by various factors. In the case of perceived brightness, it was investigated that as the set illuminance was higher, the perceived brightness at the same overall illuminance was relatively dark. In the case of the set illuminance 700lx, it was found that the illuminance was intuitively perceived as bright. As a result of the occupant's sensitivity analysis according to the change in illuminance, it revealed an illuminance change of 74.9lx (300lx), illuminance change of 63lx (400lx), illuminance change of 111.7lx (500lx), and illuminance change of 51.2lx (700lx). In this case, it was found that the lighting user could visually perceive the change in brightness for the first time. As a result of deriving visual sensitivity through regression analysis, it revealed that the higher the setting illuminance, the lower the visual sensitivity.

Keywords

Acknowledgement

이 논문은 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임 (No. NRF-2022R1C1C2007215). 이 논문은 2022년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임 (No. 2022R1A6A3A01087255).

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