Abstract:The article presents and analyzes the observed phenomenon of optical deformation of a cylindrical dispersing diffuser as the effect of a classical replacement a light source by LED retrofit. A cylindrical diffuser equipped with such a light source presents a luminance distribution that significantly deviates from the actual view of the unshielded lampshade. This is a feature which disqualifies such an application of these sources for aesthetic reasons, the more so because the accompanying effect is also a noti… Show more
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