A full scale photometric simulation facility for evaluating the luminous environment in office work applications

A simulation facility and experimental procedures used for the photometric study and evaluation of office lighting design and system applications are described. This facility was developed to obtain quantitative photometric information on how different office lighting systems and design approaches affect the visual quality and comfort within typical work environments. This facility consists of a 40 ft*50 ft*25 ft space with the capability of controlling ceiling height, floor area, and window size, allowing for the controlled simulation and study of ceiling integrated lighting, furniture integrated task lighting and window aperture daylighting systems. Measurement and study capabilities include a luminance scanner that allows the measurement of the absolute luminance of all surfaces within an occupant's field of view, and a data acquisition system that can record data from photometric sensors at various locations. This information is used to determine illuminance levels, luminance ratios, glare, and task contrast at the work station. The authors discuss a range of lighting studies to illustrate the simulation and measurement capabilities associated with the operation of the laboratory.<>