They should be as shiny as possible, smooth and flawless. Car paints are held to the highest standards. Special lighting for surface inspection allows for the most accurate inspection to determine if the paint is flawless. With special technology, various exterior light situations can be simulated, making even the smallest paint errors like inclusions, clouding, or color differences visible. The key to lighting for surface inspection is a combination of modern LED lights with cold white and warm white color temperatures, which can be individually dimmed.
To make holograms, polishing haze, or matte spots visible, a high point luminous intensity is needed, which simulates extremely intense sunlight. High-power LEDs provide this by being bundled and directed with narrow-beam optics. This creates a high illuminance on the paint surface. To better recognize errors on the surface of the bodywork, reflections on the surface are needed. Modern lighting for surface inspection forms a strip light that presents a high contrast between light and dark. The strips are deflected at defective spots. In this way, it is possible to detect errors in the paint or on the sheet metal.