User manual

Position of Light Installation
Version 1.5 64
13.4 Recommended Positioning of Light
13.4.1 General
Please consider light positioning for the SCB-12 carefully. Mount-
ing the light too close to the unit will cause reflections, mounting it
too far away will cause shadows.
The illustration below shows the recommended position of lighting
for the SCB-12. The distance from the center of the unit to the cen-
ter of the light should be identical to the MAXIMUM image size
(e.g. vertical image size).
Example
If the camera is mounted 1400mm above the working surface then
the maximum vertical image size is 893mm (see "length" value in
table on page 9 or use the calculation program at:
www.wolfvision.com/wolf/indexdistance.html
). This means that
893mm is also the recommended distance from the center of the
unit to the center of the light.
We recommend mounting the light like the position shown below,
because here shadows are not too disturbing when pointing at cer-
tain details on a document.
Due to the automatic white balance of the unit, it is possible to use
any type of light. WolfVision recommends a diffused light with more
than 300 Lux and a homogeneity of less than 15% on the working
surface.