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Micro-optic security device with absolute registration

A security device, micro-optical technology, used in optics, optical components, instruments, etc.

Pending Publication Date: 2022-01-18
CRANE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While various visual effects and properties of human-visible displays provided by micro-optical security systems can be produced by controlling the overall spatial relationship between the visual information and the focusing elements, absolute registration or positioning of the visual information within the footprint of the focusing elements The ability to specify a location within a device, and, implicitly, the ability to provide a visible display at a predetermined viewing angle, remains a source of technical challenge and opportunity for improvement

Method used

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  • Micro-optic security device with absolute registration
  • Micro-optic security device with absolute registration
  • Micro-optic security device with absolute registration

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Embodiment Construction

[0019] discussed below Figure 1 to Figure 7B And the various embodiments used to describe the principles of the disclosure in this patent document are by way of illustration only and should not be construed in any way as limiting the scope of the disclosure.

[0020] figure 1 An example of a micro-optic system 100 according to certain embodiments of the present disclosure is shown in accordance with the present disclosure.

[0021] refer to figure 1 As a non-limiting example, at a basic level, micro-optical system 100 includes a plurality of focusing elements 105 (including, for example, focusing element 107 ), and an arrangement of image icons 120 (including, for example, image icons 121 ). According to various embodiments, each focusing element of the plurality of focusing elements 105 has a footprint in which one or more image icons of the image icon arrangement 120 are positioned. In some embodiments, the positions of the image icons within the image icon arrangement 1...

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Abstract

A micro-optic security device (100) includes a planar array of micro-optic focusing elements (105) and a first arrangement of image icons (120), wherein each image icon (121) of the first arrangement of image icons includes a region of light-cured material. Further, the first arrangement of image icons is visible (320) through the planar array of micro-optic focusing elements across a first predetermined range of viewing angles relative to the micro-optic security device, and the first arrangement of image icons is not visible (360) through the planar array of micro-optic focusing elements across a second predetermined range of viewing angles relative to the micro-optic security device.

Description

technical field [0001] The present disclosure generally relates to the anti-counterfeiting of security and / or high value documents such as banknotes, passports and tickets. More specifically, the present disclosure relates to micro-optical security devices with absolute registration between the focusing elements and the individual micro-optic layers magnified by the focusing elements. Background technique [0002] Certain documents, including but not limited to banknotes and some government-issued documents, utilize micro-optical security devices that include multiple small focusing elements (e.g., microlenses), each with a footprint in which Provides visual information to form a composite image visible to the observer of the document. While the visual information in the footprint of any given lens is generally too small to be seen by the human eye, the collective operation of each of the multiple focusing elements results in a A human-visible display of a portion of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/29B42D25/30
CPCB42D25/324B42D25/342B42D25/425B42D25/45B42D25/41B42D25/36G02B3/0012G02B3/0037
Inventor S·M·凯普J·D·戈斯内尔B·E·布莱曼J·科万R·图尔
Owner CRANE & CO
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