EcoReflect from Dürr is an
innovative light tunnel for checking surface quality. With an innovative light
concept and a perfectly ergonomic environment design, it delivers precise and
highly focused vision. This permits continuous detection of irregularities in
paint with maximum accuracy.
Before car bodies leave the
paint shop and go into final assembly, the paint structure is checked for the
smallest flaws like inclusions of dust or small hairs. The EcoReflect light
tunnel provides the best visual and ergonomic conditions for this difficult
quality inspection task.
Detecting deviations calls for
a reflected image with high, but not too stimulating contrasts. With
EcoReflect, the number of contrast lines in the field of vision is also based
on a suitable stimulus frequency. Since
it generates vertical contrast lines, the operators can follow the progression
of the car bodies when checking them. In contrast to conventional systems with
horizontal lines, with this system the operators do not have to keep looking up
and down, which is much more ergonomic and less physically strenuous.
Glare-free vision is another
important prerequisite for detecting surface flaws and at the same time
minimizing fatigue symptoms for operators. With EcoReflect, appropriate prisms
at the lamps ensure that as much light as possible is shone onto the car
bodies, and that the operators are not subjected to glare. The radiation
principle of asymmetric lighting helps here.
Dürr has also enhanced the
luminaire concept with the use of LED modules. The result is both high
contrasts in the reflected image and areas with homogeneous illumination. The
LED technology used requires just the half of the energy of conventional
fluorescent tubes. EcoReflect is also more economical than standard LED designs
because the arched shape of the light tunnel casts a particularly large amount
of light onto the car body.
EcoReflect can be constructed
as an individual station or as a line. The system can also be extended and
customised in terms of light colours and materials for complex flaw types.
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