Security element having a lenticular image

A method for manufacturing a security element having a lenticular image that, from different viewing directions, displays at least a first appearance and a second appearance, the method comprising:

• providing a carrier substrate furnished with a lens grid composed of a plurality of microlenses and a radiation-sensitive motif layer arranged spaced apart from the lens grid, said radiation-sensitive motif layer being opaque and patterned in the form of a first motif;
• and
• producing a plurality of transparency regions in the radiation-sensitive motif layer by action of radiation through the lens grid, said transparency regions arranged in perfect register with the microlenses of the lens grid;
• wherein, when the security element is viewed from a second viewing direction through the lens grid and the transparency regions of the radiation-sensitive motif layer, the second appearance is visible;
• wherein, when the security element is viewed through the lens grid from a first viewing direction, the first motif of the radiation-sensitive motif layer outside the transparency regions produced by the action of radiation is visible as the first appearance;
• and
• wherein there is arranged on the side of the radiation-sensitive motif layer facing away from the lens grid a second motif layer that is patterned in the form of a second motif, such that, when the security element is viewed from the second viewing direction, the second motif is visible through the lens grid and the transparency regions of the radiation-sensitive motif layer as the second appearance.

A security element for securing security papers, value documents and other data carriers, having a lenticular image that, from different viewing directions, displays at least a first appearance and a second appearance,

• the lenticular image including a lens grid composed of a plurality of microlenses and a radiation-sensitive motif layer that is arranged spaced apart from the lens grid,
• the radiation-sensitive motif layer including, produced by the action of radiation, a plurality of transparency regions that are each arranged in perfect register with the microlenses of the lens grid, such that, when the security element is viewed from a second viewing direction through the lens grid and the transparency regions of the radiation-sensitive motif layer, the second appearance is visible, and
• outside the transparency regions produced by the action of radiation, the radiation-sensitive motif layer being opaque and being patterned in the form of a first motif such that, when the security element is viewed through the lens grid from a first viewing direction, the first motif is visible as the first appearance,
• wherein there are arranged on the side of the radiation-sensitive motif layer facing away from the lens grid one or more transparent layers such that, when the security element is viewed from the second viewing direction through the lens grid and the transparency regions of the radiation-sensitive motif layer, a background that lies below the security element is visible as the second appearance.