OPTICAL DEVICE GIVING A RAISED APPEARANCE TO AN IMAGE THAT PARTIALLY COVERS A LUMINOUS ENERGY SENSOR

The invention relates to a device comprising at least: (a) a sensor (5) of luminous energy from an external light source; (b) a transparent plate (1) arranged between said external light source and said sensor (5), comprising a first surface referred to as "front surface" (2) which is orie...

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1. Verfasser: GAGLIANO OLIVIER
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:The invention relates to a device comprising at least: (a) a sensor (5) of luminous energy from an external light source; (b) a transparent plate (1) arranged between said external light source and said sensor (5), comprising a first surface referred to as "front surface" (2) which is oriented towards said external light source and a second surface referred to as "rear surface" (6) which is oriented towards said sensor (5), said transparent plate (1) being optically structured on one of the two surfaces thereof (2&6) at least by a plurality of straight optical elements that are parallel to one another; (c) a plurality of image strips (3) separated by transparency strips (4); said device being characterised in that the longitudinal axis of the image strips (3) is tilted by an angle (a) other than zero relative to the longitudinal axis of the optical elements of the transparent plate (1), such that said images (3) viewed through the transparent plate (1) appear with a certain relief, while the energy production of the sensor (5) remains substantially constant regardless of the angle of incidence of said external light on the device. L'invention concerne un dispositif comportant au moins : (a) un capteur (5) de l'énergie lumineuse provenant d'une source de lumière extérieure; (b) une plaque transparente (1) disposée entre ladite source de lumière extérieure et ledit capteur (5), comprengnt une première face appelée « face avant » (2) qui est orientée vers ladite source de lumière extérieure et une deuxième face appelée « face arrière » (6) qui est orientée vers ledit capteur (5), ladite plaque transparente (1 ) étant structurée optiquement sur l'une de ses deux faces (2S6) au moins par une pluralité d'éléments optiques recfilignes et parallèles les uns aux autres; (c) une pluralité de bandes image (3) séparées par des bandes de transparence (4); ledit dispositif étant caractérisé en ce que l'axe longitudinal des bandes image (3) est incliné d'un angle (a) non nul par rapport a l'axe longitudinal des éléments optiques de la plaque transparente (1 ), de manière que îesdftes images (3) vues au travers de la plaque transparente (1 ) apparaissent avfic un