Micro-optical security device with color zone

JP2025029107AInactive Publication Date: 2025-03-05CRANE & CO INC
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Patent Information

Application Number
JP2024210798
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2020-08-18
Filing Date
2024-12-03
Publication Date
2025-03-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

To provide a micro-optical security device having zones of color.SOLUTION: A micro-optical security device (100) with zone-by-zone color transitions includes: a planar array of light collecting elements (140); and a pictorial icon layer (120) with a plurality of retaining structures (710) defining isolated volumes at a first depth within the pictorial icon layer. The security device further includes a first zone (350) of pictorial icons, the first zone of pictorial icons having a first predetermined subset of the plurality of retaining structures comprising a hardened colored material of a first color. The micro-optical security device also includes a second zone (360) of pictorial icons comprising a second predetermined subset of the plurality of retaining structures, the isolated volumes of the retaining structures of the second predetermined subset of the plurality of retaining structures comprising a hardened colored material of a second color, the second color contrasting with the first color.SELECTED DRAWING: Figure 1
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Citation Information

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