Luminances and vision related to daylighting
Document typeConference report
Rights accessOpen Access
Daylighting has an excellent color rendering, as human eyes have been developed under the sun’s rays, and it yields very proactive elements to human behavior. In the field of luminance contrast, it has been noted that the probability of excessive contrast is lower when considering daylighting in relation to artificial lighting. As a result, in activities which require more demanding visual accuracy, daylighting can offer more and better conditions for light and space variations considering the wide range of the field of vision. This paper proposes a new approach to the methodology of calculating luminance balances considering the surface position in space and its relative weight in the final mean luminance value. This is based on ergonomic field of vision distribution, which confers major importance on what is in the solid angle analyzed by the cones area of the eye. The starting point when constructing numerical models of lighting comfort is the human eye’s sensitivity to light. Assessing interior architectural visual comfort conditions is the ultimate purpose of this work, along with the possibility of taking advantage of photography-related software programs that could be useful tools for architects and interior designers. Avoiding uncomfortable visual situations is an environmentally efficient approach because the end effect of poor visual conditions is a higher demand for artificial lighting, leading to energy consumption that could be saved with lighting conditions adapted to human comfort.
CitationAguilar, A. [et al.]. Luminances and vision related to daylighting. A: World Renewable Energy Congress. "Proceedings of the World Renewable Energy Forum". Denver, Colorado: 2012, p. 1-6.