2007, Piran, Slovenia

Working environment
astigmatism, and asthenia, low back pain, varicosities, and so on. (3) Human operators have
ophthalmologic illness because the unsuitable lighting conditions. Local and general lighting
presents variations in intensity of light causing premature fatigue of the visual analyzer’s
fatigue. This kind of fatigue generates the tiredness of the entire body. The situation is very
harmful if we take account that most workers are women, and that the postural stress is static
and prolonged and it has a bad impact on the comfort in work and on the performance of
operator’s work.
Proposals for optimizing illuminating systems include: (1) Descending each illuminating
element 1000 mm against their initial position in order to realize a uniform, good quality
lighting, in all working spaces, without shadows. (2) Providing a protective screen from the
direct sunlight. The screen must be placed outside the building, and the light will be reflected
on the ground, not directly, eliminating the dazzle. After the application of these ergonomic
optimization solutions of the lighting in industrial environment, and the elimination of the
dazzle phenomenon, productivity will grow about 2-6% and the costs for undertaking this
work will be absorbed in approximately 2-3 months.
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