Optically transparent conductive material

An optically transparent conductive material, comprising:

• an optically transparent support bearing an optically transparent conductive layer, said optically transparent conductive layer having a sensor part electrically connected to a terminal part and a dummy part not electrically connected to the terminal part,
• the sensor part and/or the dummy part being formed of a metal pattern having a mesh shape obtained by enlargement or reduction of a Voronoi diagram in an arbitrary direction, wherein
• all of the mesh shapes of the metal pattern are mesh shapes obtained by the same ratio of enlargement or reduction of the Voronoi diagram in said arbitrary direction,
• the Voronoi diagram is composed of Voronoi edges such that a plane for the Voronoi diagram is tiled using a plurality of polygons of a single kind or polygons of two or more kinds,
• the plurality of polygons each having a gravity center at a position, and the enlargement or reduction of the plurality of polygons providing a plurality of associated scaled polygons, each of the plurality of scaled polygons also having a gravity center at a position,
• the position of the gravity center of each of said polygons is the same as the position of the gravity center of its associated scaled polygon,
• a ratio of the associated scaled polygon to said polygon is such that the length of each scaled side is 10 to 300% of the corresponding side of said polygon,
• a number of generators randomly disposed in each of the scaled polygons is 1 to 3, and
• the Voroni edges are produced in relation to the generators.