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Architectural Lighting Lab
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A lab that designs, evaluates, and controls the luminous environment of buildings.
AboutAbout the lab
Measuring the luminous environment and designing windows and visual environments
The Architectural Lighting Lab studies the design, evaluation, and control of the luminous environment inside and outside buildings.
From both the physical aspects of the environment and the psychological and physiological aspects of people, the lab considers how to create comfortable, healthy architectural spaces.
To date, the lab has developed daylight models based on long-term continuous measurements of daylight and solar radiation, and has studied visual responses related to sleep and wakefulness to the spectral distribution of light sources.
For designing and evaluating architectural spaces using virtual reality (VR) environments, the lab is focusing on developing methods for designing building envelopes and windows based on the visual information in 3D city models.
Key terms
- Daylight
- Sunlight (natural light) that enters a room through windows and other openings.
- Spectral distribution
- The distribution of intensity across the wavelengths contained in light. It expresses differences in the color of light sources.
- Building envelope
- The parts that cover the outside of a building, such as walls and windows. It separates indoor and outdoor environments.
- 3D city model
- Digital data that represents a city's buildings, roads, and other features in three dimensions. It can also carry category information such as sky, buildings, and greenery.
NewsLab news
View More ↗ResearchResearch themes
The lab studies the luminous environment inside and outside buildings for the design and control of comfortable, healthy architectural spaces. It has also taken part since 2001 in research activities on lighting in buildings under the International Energy Agency (IEA) Solar Heating and Cooling (SHC) Programme.
*Illustrative imageLow-Carbon, Comfortable Integrated Lighting
In the project on low-carbon, high-comfort integrated lighting, which began in 2022, the lab works mainly with European researchers on digital lighting technology, parametric automated design, and the use of VR.
*Illustrative imageDesigning Windows with 3D City Models
The lab is developing methods for designing building envelopes and windows based on the visual information held in 3D city models. It proposes a framework in which a game engine determines the type and distance of surrounding objects, which are then handled by category, such as sky, buildings, roads, and greenery.
*Illustrative imageEvaluating Views from Windows
The lab studies how to evaluate satisfaction with views from office windows using VR images. Trends in satisfaction in VR show a high correlation with those in actual buildings, and the lab also examines the effects of the amount and placement of greenery visible from windows.
*Illustrative imageSupporting Architectural Design with VR
The lab is jointly developing a system that uses VR and computer vision to measure the complexity of building facades and test whether it matches human visual perception, as well as a system that evaluates site layouts in immersive VR.
MembersFaculty
- Associate ProfessorYasuko Koga
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Bartenbach kuenstlicher Himmel” Bartenbach Media / CC BY-SA 4.0 (cropped)
- Low-Carbon, Comfortable Integrated Lighting: “Cannon Building Lighting ( )” USCapitol from Washington, D.C., United States of America / Public domain (cropped)
- Designing Windows with 3D City Models: “Photogrammetry 3D city model of London” AccuCities / CC BY-SA 4.0 (cropped)
- Evaluating Views from Windows: “View of a frosty evening through a window on a Scottish farm” Michal Klajban / CC BY-SA 4.0 (cropped)
- Supporting Architectural Design with VR: “VR headset with smartphone and stereoscopy image” Bert Niehaus / CC BY-SA 4.0 (cropped)
- Related lab (健康建築環境学研究室): “Schlieren-color-candle-plume” Settles1 / CC BY 3.0 (cropped)
- Related lab (建築環境シミュレーション学研究室): “Outdoor thermal comfort” ENVI-met GmbH / CC BY-SA 4.0 (cropped)
- Related lab (持続建築エネルギー学研究室): “Reflection of Parque Cultural Paulista building in Avenida Paulista, Brazil” Wilfredor / CC BY-SA 4.0 (cropped)
- Related lab (建築
デザインエンジニアリング学研究室): “Parametric designs” Sharan Sharma the clicker / CC BY-SA 4.0 (cropped)
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