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Optical watermark imaging device and anti-counterfeiting equipment

An imaging device and optical watermarking technology, applied in optics, optical components, instruments, etc., can solve the problems of low security and easy imitation of microlens imaging films, improve anti-counterfeiting capabilities and safety, and solve problems that are easy to be imitated Effect

Active Publication Date: 2021-05-07
WUHAN HUAGONG IMAGE TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide an optical watermark imaging device and anti-counterfeiting equipment to improve the existing problems of low security and easy imitation of microlens imaging films

Method used

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  • Optical watermark imaging device and anti-counterfeiting equipment
  • Optical watermark imaging device and anti-counterfeiting equipment
  • Optical watermark imaging device and anti-counterfeiting equipment

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0032] In view of the problems that the existing microlens imaging films are low in safety and easy to be copied, the inventors of the present application propose the following embodiments to solve the above problems after research and exploration.

[0033] see figure 1 , the embodiment of the present application provides an optical watermark imaging device 100 . It includes: a microlens layer 10 , an imaging carrier 20 and a graphic layer 30 .

[0034] Wherein, the microlens layer 10 is formed by arranging a plurality of microlenses. An imaging carrier 20 is disposed below the microlens layer 10 . The graphic layer 30 is disposed under the imaging carrier 20 .

[0035] In the embodiment of the present application, the graphic layer 30 is embedded with a plurality of micro-graphic structures; an...

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PUM

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Abstract

The invention provides an optical watermark imaging device and anti-counterfeiting equipment, and belongs to the technical field of optical encryption. The optical watermark imaging device comprises a micro-lens layer which is formed by arranging a plurality of micro-lenses; an imaging carrier which is arranged below the micro lens layer; an image-text layer which is arranged below the imaging carrier, and a plurality of micro image-text structures are embedded in the image-text layer; each micro image-text structure is provided with n coding areas, the n coding areas arranged in each micro image-text structure are arranged at the same position, and the n coding areas in each micro image-text structure correspond to the imaging of one pixel point; pixel points corresponding to the n coding areas in each micro image-text structure are combined to form a watermark coding pattern. Through the mode, the anti-counterfeiting capability and the safety of the micro-lens imaging film are improved, and the problem that the micro-lens imaging film is easy to copy is solved.

Description

technical field [0001] The present application relates to the technical field of optical encryption, in particular, to an optical watermark imaging device and an anti-counterfeiting device. Background technique [0002] Microlens is a common optical element, which belongs to passive optical element and is used to converge and diverge light radiation in an optical system. At present, imaging films made of microlenses can be widely used in cards, currency, and packaging. However, the existing microlens imaging film has low safety and is easy to be imitated. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide an optical watermark imaging device and an anti-counterfeiting device, so as to improve the problems of low security and easy imitation of existing microlens imaging films. [0004] The present invention is achieved like this: [0005] In the first aspect, an embodiment of the present application provides an optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00
CPCG02B3/0006G02B3/0037
Inventor 李桂林汪昱坤张静刘畅葛宏伟
Owner WUHAN HUAGONG IMAGE TECH & DEV