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Improved micro-optic security device

一种安全装置、安全文档的技术，应用在光学、光学元件、装饰艺术等方向，能够解决没有公开等问题

Active Publication Date: 2011-02-09
CRANE SECURITY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No means are disclosed for achieving this image shape change

Method used

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  • Improved micro-optic security device
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  • Improved micro-optic security device

Examples

Experimental program
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Embodiment Construction

[0038] By way of the present invention, it has been found that the use of stitched icons consisting of adjacent or interlaced segments in a micro-optical security device can greatly expand the number and complexity of visual effects provided by such a device. It has also been found that the configuration or arrangement of the segments in the stitched icon plays a role in the number of composite images that can be projected by the device at any viewing angle. In particular, it has been found that adjacent or slightly overlapping segments allow the device to simultaneously project two or more synthetically enlarged images, which may be separate or concatenated, thereby greatly increasing the complexity of these images.

[0039] The micro optical security device of the present invention can be used in any document (e.g. banknotes, passports, identity cards, credit cards), labels, identification parts, commodities (e.g. compact discs, CDs, DVDs, medical kits) in many different form...

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Abstract

A micro-optic security device that employs one or more planar arrangements of stitched icons and that projects at any given viewing angle one or more synthetically magnified images, is provided. The synthetically magnified image(s) constitutes either a single or multipart image(s) that optionally changes to a different image(s) as the security device is tilted, or as the viewing angle changes.

Description

[0001] This application claims the benefit and priority of US Provisional Patent Application Serial No. 60 / 953,304, filed August 1, 2007, which is hereby incorporated by reference in its entirety. technical field [0002] This application relates generally to miniature optical security devices for projecting images and, more particularly, to devices employing one or more planar arrangements of spliced ​​icons and projecting one or more composite magnified images at any given viewing angle. Miniature optical security device. This synthetically magnified image constitutes a single image or multi-part image which can optionally change to a different image when the security device is tilted, or when the viewing angle is changed. Background technique [0003] It has long been recognized that optical materials are a valuable addition to the security threads used in banknotes. Giving these materials to the security thread allows multiple self-authenticating optical effects, so the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/06B42D15/00
CPCB42D2035/44G02B27/022G02B3/0006B42D2035/20B42D15/0026B42D25/355B42D25/29B42D25/45B42D25/324B42D25/351B42D25/342G02B27/06B44F1/10D05B93/00
Inventor P·F·科特
Owner CRANE SECURITY TECH
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