22 August 2006
Light Distribution on Task Plane (Uniformity): Design luminaire layout to
uniformly distribute light over the work-plane to avoid dark areas in the
Shadows: Select and locate luminaires to avoid shadows on the work-
plane. Task lighting can also increase the illuminance on the task as well
as eliminate shadows.
Source / Task Eye Geometry: Locate luminaires relative to tasks to avoid
direct glare and prevent shadowing.
Illuminance on Task Plane: Maintenance on vehicles often requires high
lighting levels. This may be accomplished with high vertical south and north
oriented clerestories. Electric lighting, such as linear high output
fluorescents can provide direct and indirect lighting for the most uniform
application when daylight levels are insufficient. Portable task lighting can
increase illuminance to the required level at the particular task.
Target Horizontal Illuminance ( 10%): 500 lux (50 fc)
Although light level is important to achieve in a vehicle repair area, uniformity and the
prevention of glare and shadowing also must be achieved to provide a comfortable and
functional workspace. Portable task lighting allows for higher light levels at the task
location without increasing the overall ambient level throughout the space.