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Full-Text Articles in Engineering
Perceived Adequacy Of Illumination, Spatial Brightness, Horizontal Illuminance And Mean Room Surface Exitance In A Small Office, James Duff, Kevin Kelly, Christopher Cuttle
Perceived Adequacy Of Illumination, Spatial Brightness, Horizontal Illuminance And Mean Room Surface Exitance In A Small Office, James Duff, Kevin Kelly, Christopher Cuttle
Articles
This paper presents a pilot study that investigated the suitability of mean room surface exitance as a predictor of spatial brightness and perceived adequacy of illumination, and then compared these results with how horizontal illuminance predicted both items under the same conditions. The experiment included 26 participants. A small office was used for the study. It exposed participants to three levels of mean room surface exitance, each delivered with three different light distributions and across three different surface reflectances, resulting in a total of 27 light scenes. A clear relationship existed between mean room surface exitance and both perceived adequacy …
Spatial Brightness, Horizontal Illuminance And Mean Room Surface Exitance In A Lighting Booth, James Duff, Kevin Kelly, C. Cuttle
Spatial Brightness, Horizontal Illuminance And Mean Room Surface Exitance In A Lighting Booth, James Duff, Kevin Kelly, C. Cuttle
Articles
This paper presents a pilot study that has investigated the suitability of mean room surface exitance as a predictor of spatial brightness and compared these results with how horizontal illuminance predicts spatial brightness under the same conditions. The experiment took a group of 26 participants and, using a scaled booth, exposed each participant to three levels of mean room surface exitance, each delivered with three different light distributions and three different surface reflectances, resulting in a total of 27 light scenes. Results demonstrated that, under the range of conditions to which participants were exposed, a systematic relationship existed between mean …