Operating Manual

The higher the proportion of directed (direct) light, the darker the transparent color on the metalized
substrate will appear.
The higher the proportion of diffuse (undirected) light, the brighter the transparent color on the
metalized substrate will appear.
Since, in these circumstances, changing ambient light conditions can exert a very great influence
on the way colors are perceived, it is recommended that color matching is carried out in
an environment where the lighting remains constant and corresponds as closely as possible to
the conditions in which the color will ultimately be seen.
By using the slider control, the brightness of the recipe can be adjusted so that it is perceived
correctly by the eye in the given ambient light conditions.
The 50% direct light slider control setting roughly equates to a mixture of directed and diffuse
light such as that experienced when looking at a sample by the window at about midday without
direct sunlight.
It is recommended that, whenever the slider control has been adjusted for best results, it is always
returned to this starting position.
Example: Moving the slider control along to the right, e.g. to 60%, has the effect of making a
brighter formulation for the recipe. It may be necessary to make such an adjustment if the sample
has to be made to match the target color under artificial light (e.g. light bulbs, fluorescent strips),
where there is a higher proportion of directed light.
The slider control is sensitive. A slight shift of the control (e.g. by 10%) will have a relatively large
effect on the brightness of the recipe.
Summary of the effect when adjusting the slider control
Ambient light Adjusting the slider control Recipe Explanation
High proportion of
directed light
High proportion of
diffuse light
To the right (direct) Formulated more brightly The higher the proportion of directed ambient light,
the darker the transparent color on the metalized
substrate will appear. The recipe therefore has to be
adjusted to make it brighter.
To the left (diffuse) Formulated more darkly The higher the proportion of diffuse ambient light,
the brighter the transparent color on the metalized
substrate will appear. The recipe therefore has to be
adjusted to make it darker.
22 • Making settings 167