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Light Colour Temperature and Defect Visibility in Paint Inspection
Different inspection lights can reveal different aspects of a finish. Keep the light setup identified when comparing polishing or coating results.
Updated · NANOLAB Knowledge
Separate colour from beam behaviour
A light’s colour appearance is only one property. Beam shape, intensity, position and the surrounding reflections affect which marks you can see. Two lights with similar colour temperature need not reveal fine scratches equally well.
Build a repeatable inspection
Photograph where the light, panel and camera were positioned. Compare the same cleaned area with consistent settings, then use an additional suitable light or natural viewing condition as a separate check. Label those checks instead of blending them into one undocumented conclusion.
Avoid a display-only finish
Do not accept a result simply because it looks attractive under the shop’s broad decorative lighting. The final check should be capable of showing the defects relevant to the agreed service. Record residual marks and the conditions under which they were assessed.
Frequently asked question
Does a higher colour-temperature lamp always find more scratches?
No. Defect visibility depends on the full lighting arrangement and surface, not one specification.