Three-dimensional face display identity card based on micro-lens array and preparation method of identity card

A microlens array, three-dimensional face technology, applied in the field of ID cards, can solve the problem that the integrated imaging technology does not use ID cards, etc., and achieve the effect of improving the anti-counterfeiting performance

Inactive Publication Date: 2018-01-12
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, integrated imaging technology has not been applied to ID cards

Method used

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  • Three-dimensional face display identity card based on micro-lens array and preparation method of identity card
  • Three-dimensional face display identity card based on micro-lens array and preparation method of identity card
  • Three-dimensional face display identity card based on micro-lens array and preparation method of identity card

Examples

Experimental program
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Effect test

preparation example Construction

[0029] The above-mentioned method for preparing a three-dimensional face display ID card based on a microlens array comprises the following steps:

[0030] ①Use the material of the original second-generation ID card to make a bottom plate;

[0031] ②Using a digital camera or using laser printing technology to obtain two-dimensional face photos of a certain size, arrange the two-dimensional face photos without gaps to form the two-dimensional face photo combination board and place it on the bottom plate , the size of each two-dimensional face photo is the same as the unit lens size in the microlens array, and the number of the two-dimensional face photos is the same as the number of unit lenses in the microlens array;

[0032] ③ Prepare a microlens array layer with the same size as the two-dimensional face photo combination plate, the microlens array layer is composed of a plurality of unit thin convex lenses with the same size, and the object distance of the unit thin convex l...

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PUM

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Abstract

The invention discloses a three-dimensional face display identity card based on a micro-lens array and a preparation method of the identity card. The identity card comprises a text portion and an image portion, wherein the image portion comprises a bottom plate, a two-dimensional face photo combination plate, a first film filling layer with a uniform refractive index, a micro-lens array layer, a second film filling layer with a uniform refractive index, a thin concave lens layer, a third film filling layer with a uniform refractive index and an upper surface from bottom to top. Naked eyes cansee a three-dimensional photo on the identity card in natural light, the anti-counterfeiting performance of the identity card is greatly improved, and the identity card can be widely applied to various places needing identity authentication.

Description

technical field [0001] The invention relates to an ID card, in particular to a three-dimensional human face display ID card based on a microlens array and a preparation method thereof. The ID card has the function of observing a three-dimensional human face with naked eyes under natural light. technical background [0002] ID card is a proof tool of citizenship, and ID card is used in all countries to prove the identity of the holder. However, with the emergence of a large number of new technologies today, the photos on the ID card are still two-dimensional flat photos, which not only have no three-dimensional and aesthetic feeling, but also do not make good use of new technologies to improve anti-counterfeiting performance. It enables others to use camouflage to pass inspections on relevant occasions. [0003] At present, integrated imaging technology has been widely used in various fields. However, integrated imaging technology has not been applied to ID cards. In the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22
Inventor 闫钰周常河李号李超
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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