Motor-vehicle body part including a lenticular sheet made of transparent molded plastic material of a given refractive index (n) higher than 1 and a given thickness (e), includes an external face forming an array of substantially spherical microlenses of a given radius of curvature (R), said microlenses being arranged with a given pitch and, an internal face of the lenticular sheet, which bears an array of three-dimensional features that are arranged with the pitch of the array of microlenses. This array of features is formed from fractions of a whole three-dimensional feature of equal dimensions, two adjacent fractions of three-dimensional features being offset in the direction in question by a given phase shift, each of these fractions of three-dimensional features magnified by a given coefficient of magnification, are juxtaposed on the internal face of the lenticular sheet with a pitch corresponding to the pitch of the microlenses.
PIECE DE CARROSSERIE COMPRENANT UNE PAROI LENTICULAIRE POUR FORMER UNE IMAGE HOLOGRAPHIQUE
11.11.2022
Patent
Elektronische Ressource
Französisch
PIECE DE CARROSSERIE COMPRENANT UNE PAROI LENTICULAIRE POUR FORMER UNE IMAGE TRIDIMENSIONNELLE
Europäisches Patentamt | 2022
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