A color image formed from a hologram
A holographic structure with color modulation techniques enhances secure documents by improving color gamut and uniformity, creating tamper-resistant, high-quality images.
JP7875517B2Inactive Publication Date: 2026-06-18イエヌ スマート アイデンティティ フランス
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- イエヌ スマート アイデンティティ フランス
- Filing Date
- 2020-02-13
- Publication Date
- 2026-06-18
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
The present invention relates to a color image (IG) comprising a first layer (10) including a holographic structure forming an array (29) of pixels (30) each including a distinct color subpixel (32), and color modulation means configured to select the color of the pixel (30) by modifying the colorimetric contributions of the subpixels (32) relative to one another in the pixel (30) so as to reveal a personalized color image. The color modulation means may include areas of the holographic structure that have been locally destroyed by a laser, called destruction areas, masking means arranged facing the array of pixels for locally masking all or part of the subpixels, or further amplification means arranged facing the array of pixels for locally amplifying the luminous intensity of all or part of the subpixels.
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