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Direct and diffused light
15/05/2019

Direct and diffused light

Properly illuminating an object to highlight particular features is not easy. The most important factor that must be considered is the orientation of the light. Direct light has an uninterrupted path from the source to the target, while diffused light passes through an opaque diffuser that softens and disperses the light, making it less intense but more uniform. In the field of industrial vision, diffused lighting is used to reduce shadows and to decrease the effect on reflective components by having a uniformly distributed light on all parts of the analyzed object. Dome lighting is one of the techniques that use diffused light. It combines spherical reflected light and perpendicular light to obtain incident light from all angles. This system, intended for the most complex applications, is sometimes called "Cloudy Day" since it does not produce shadows. It can be used to illuminate the most complex specular shapes like ball bearings, surgical instruments, knurled metal film, compact discs, etc.

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