Personne
Jan Wienold
Publications associées (87)
Perceived glare from the sun behind tinted glazing: Comparing blue vs. color-neutral tints
Marilyne Andersen, Andreas Schueler, Jan Wienold, Sneha Jain, Maxime Lagier
While the influence of a glare source's spectrum on sensitivity to discomfort glare has been demonstrated repeatedly under electric light conditions, it has not yet been studied under actual daylit conditions. To investigate the influence of spectral alter ...
2023IS THERE AN EFFECT OF MACULAR PIGMENT DENSITY ON DISCOMFORT GLARE IN INDOOR DAYLIGHT CONDITIONS?
Marilyne Andersen, Jan Wienold, Caroline Karmann, Sneha Jain
Discomfort glare from daylight can lower productivity and hinder effective use of daylight in buildings. Existing glare prediction models have limitations in accounting for the large inter-individual differences, mainly due to unknown physiological factors ...
International Commission on Illumination2023Comparison of questionnaire items for discomfort glare studies in daylit spaces
Marilyne Andersen, Jan Wienold, Caroline Karmann, Sneha Jain, Geraldine Cai Ting Quek, Clotilde Marie A Pierson
When studying discomfort glare, researchers tend to rely on a single questionnaire item to obtain user evaluations. It is unclear whether the choice of questionnaire item affects the distribution of user responses and leads to inconsistencies between studi ...
2023Influence of macular pigment on the sensitivity to discomfort glare from daylight
Marilyne Andersen, Jan Wienold, Sneha Jain
Understanding the factors that influence the human perception of glare is necessary to properly address glare risks in buildings and achieve comfortable visual environments, especially in the workplace. Yet large inter-individual variabilities in glare per ...
2023INVESTIGATING MULTIPLE GLARE SOURCES IN DAYLIT CONDITIONS
Marilyne Andersen, Jan Wienold, Geraldine Cai Ting Quek, Chui Ling Yuen
This study explores the effect of multiple bright light sources in the field of view on discomfort due to glare in office environments. User experiments were conducted in semi-controlled dim daylit environments mimicking open-plan offices, with glare stimu ...
International Commission on Illumination2023Performance investigation of cameras using HDR sensors for daylight glare evaluations
Jan Wienold, Geraldine Cai Ting Quek, Dong Hyun Kim
This study presents a novel framework for evaluating the luminance measurement capabilities of High Dynamic Range (HDR) sensor cameras in indoor glare conditions. Results indicate that the practical usage range of the CSEM VIP camera is significantly lower ...
International Commission on Illumination2023(Daylight) glare evaluation
Tutorial on glare evaluations ...
2023Variation in Phototopic and Melanopic Lighting in Swiss Offices: A Field Study
Marilyne Andersen, Jan Wienold, Caroline Karmann, Megan Nicole Danell, Clotilde Marie A Pierson
Health requirements for lighting in buildings are becoming increasingly important in building standards. Yet, there is a lack of concrete data on the lighting conditions that prevail in our workplaces, in terms of their spectral characteristics, their seas ...
2023Discomfort glare from daylight: Influence of transmitted color and the eye's macular pigment
Marilyne Andersen, Jan Wienold, Sneha Jain
Designing architectural façades that allow sufficient daylight to create visually comfortable and pleasant envi- ronments is a challenging aspect of building design as it requires to account for visual comfort and discomfort glare risks, and understand the ...
2023Efficient Simulation for Visual Comfort Evaluations
Marilyne Andersen, Jan Wienold, Stephen William Wasilewski
This paper provides a validation of a novel sampling, storage, and evaluation method named raytraverse that can quickly and accurately compute glare and visual comfort metrics including vertical illuminance, Daylight Glare Probability (DGP), and Unified Gl ...
2022