Security document and method of manufacturing
AssigneeMorpho
InventorsWilhelmus Johannes WESSELINK, Jan VAN DEN BERG
Life of this patent
Estimating the term…
Abstract
Disclosed is a security document including an image area, a repeating image pattern in the image area of mutually spaced image elements at a mutual distance D and a layer of a plastics material overlying the image area and an array of lenses in the plastics material. The lenses are spaced at a mutual distance L which may be equal to D or which may differ from D, the array of lenses overlying only a part of the image area surface and are formed in the plastics material within an image contour. Within the contour an image may be observed such as a Moiré magnification or a Moiré effect of light and dark stripes. The lenses may be formed for instance by laser ablation or by imprinting.
Claims20
Security document (1) comprising a portrait image (2) of a holder and an image area (3), an image pattern in the image area of mutually spaced image elements (5,6) at a mutual distance D, a layer (8) of a plastics material overlying the image area and an array of lenses (11, 12;
- 17, 18) in the layer (8), wherein the lenses (11,12) are spaced at a mutual distance L which differs from D, the array of lenses overlying only a part of the image area surface and are formed in the layer (8) of plastics material within an image contour (10,19), which image contour forms indicia displaying information pertaining to the holder and/or an issuing authority of the document (1).
Security document (1) comprising a portrait image (2) of a holder and an image area (3), an image pattern in the image area of mutually spaced image elements (5,6) at a mutual distance D, a layer (8) of a plastics material overlying the image area and an array of lenses (11, 12;
- 17, 18) in the layer (8), wherein the array of lenses overly only a part of the image area surface and are formed in the layer (8) of plastics material within an image contour (10,19) by laser ablation of the plastics material, which image contour forms indicia displaying information pertaining to the holder and/or an issuing authority of the document.
Method of forming a security document (1) comprising the steps of:
- providing a layer (9) comprising an image area (3), an image pattern (5,6) in the image area and a layer (8) of a plastics material overlying the image area (3),
- providing a portrait image of a holder in or on said layer (9),
- forming an array of lenses (11, 12;
- 17, 18) in the layer of plastics material within an image contour, which image countour overlies only a part of the image pattern (5,6) and forms indicia displaying information pertaining to the holder and/or an issuing authority of the document.
Dependencies are inferred from the claim text.