Method for producing a multilayer element, and multilayer element
AssigneesLeonhard Kurz Stiftung & Co. KG, OVD Kinegram AG
InventorsVioletta OLSZOWKA, Benjamin HASSE, Harald WALTER, Johannes HOLZWARTH
Life of this patent
Estimating the term…
Abstract
A method for producing a multilayer body, and a multilayer body having a microlens array (60) in a microlens region (6), wherein, in the microlens region, structure-based color effects are provided in a first region (1) by means of first relief structures (10), and a partial metal layer (100) demetallized by means of second relief structures (20) used as a mask is arranged in a second region (2).
Claims37
A method for producing a multilayer body, wherein the method comprises the following steps:
- providing a spacer layer having a first side and having a second side situated opposite the first side;
- providing or generating a microlens array in a microlens region, wherein the microlens array is arranged on the first side of the spacer layer;
- providing or generating a replication layer on the second side of the spacer layer;
- providing or generating first relief structures in the replication layer, wherein the first relief structures are assigned to a plurality of first image elements which are arranged in a first region of the microlens region, wherein the first relief structures are designed so as to generate or provide structure-based colors and/or color effects;
- a) providing or generating second relief structures in the replication layer, wherein the second relief structures are assigned to a plurality of second image elements,
- wherein the second image elements are arranged in a second region of the microlens region;
- providing or generating a metal layer on the replication layer;
- demetallizing the metal layer using one or more of the second relief structures as a mask, such that a partial metal layer is obtained, wherein, in the second region, a contour of the partial metal layer follows a contour of the second relief structures and forms a contour of the second image elements,
- wherein, in the first region, the partial metal layer is maintained over the predominant part of the full area or over the full area, is completely removed, or is not provided.
7-8. (canceled)
10-11. (canceled)
(canceled)
19-20. (canceled)
23-24. (canceled)
(canceled)
28-31. (canceled)
(canceled)
39-42. (canceled)
A multilayer body comprising:
- a spacer layer having a first side and having a second side situated opposite the first side;
- a microlens array in a microlens region, wherein the microlens array is arranged on the first side of the spacer layer;
- a replication layer on the second side of the spacer layer;
- first relief structures which are assigned to a plurality of first image elements which are arranged in a first region of the microlens region, wherein the first relief structures provide or generate structure-based colors and/or color effects;
- second relief structures, which are assigned to a plurality of second image elements, wherein the second image elements are arranged in a second region of the microlens region;
- a partial metal layer applied to the replication layer,
- wherein, in the second region, a contour of the partial metal layer follows a contour of one or more relief structures of the second relief structures and forms a contour of the second image elements,
- wherein, in the first region, the partial metal layer is not provided or is present over the predominant part of the full area or over the full area.
45-49. (canceled)
51-55. (canceled)
Dependencies are inferred from the claim text.