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Implementation method of full-color volume holographic anti-counterfeiting technology based on DMD

A technology of holographic anti-counterfeiting and realization method, which is applied in the field of full-color volume holographic anti-counterfeiting technology based on DMD, can solve the problem that the holographic anti-counterfeiting three-dimensional display effect is not obvious, and achieve obvious full-color true three-dimensional dynamic effect, enhance anti-counterfeiting effect, and solve chromatic dispersion. effect of the problem

Active Publication Date: 2019-09-27
SHENZHEN JINZHI GOLD&SILVER JEWELLERY INSPECTION RES CENT CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Traditional holographic anti-counterfeit 3D display effect is not obvious, basically fake 3D holographic, with the development of technology, it is becoming more and more easy to be imitated
Volume holographic anti-counterfeiting technology has certain advantages. It can realize true three-dimensional holographic anti-counterfeiting. At the same time, due to its extremely high diffraction efficiency, it can achieve obvious three-dimensional dynamic effects. Object information needs to record objectively existing three-dimensional objects, so it has great limitations

Method used

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  • Implementation method of full-color volume holographic anti-counterfeiting technology based on DMD
  • Implementation method of full-color volume holographic anti-counterfeiting technology based on DMD
  • Implementation method of full-color volume holographic anti-counterfeiting technology based on DMD

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[0033] In order to fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and illustrated below in conjunction with specific examples, but not limited thereto.

[0034] It should be understood that in this document, relational terms such as first and second etc. are only used to distinguish one entity / operation / object from another entity / operation / object and do not necessarily require or imply that these entities / operations / objects There is no such actual relationship or order between operations / objects.

[0035] It should also be understood that the term "comprises," "comprises," or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or system that includes a set of elements includes not only those elements, but also includes the elements not expressly included. other elements listed, or also include elements inherent in such a pro...

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Abstract

The invention discloses an implementation method of a full-color volume holographic anti-counterfeiting technology based on DMD. The method employs an optical path system, an image generation system and a volume holographic material, and the method comprises the following steps: generating two coherent light beams through an optical path system; and recording a three-dimensional image generated by the image generation system on the volume holographic material through two coherent light beams. According to the invention, the computing holography and the volume holography are combined, so a three-dimensional object which does not exist can be simulated to the DMD through computer holography, and then is recorded on a volume holographic material by adopting an interference method; a volume hologram is generated through three-color laser multiplexing interference, and the generated volume hologram has a wide diffraction band has similar diffraction efficiency for different wavelengths, so that the dispersion problem of volume holography is effectively solved, a more obvious full-color true three-dimensional dynamic effect is realized. Compared with that of the traditional holographic anti-counterfeiting technology, the anti-counterfeiting effect is enhanced. Meanwhile, the imitation difficulty is increased due to the unduplicateability of the volume holographic material.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting, more specifically to a method for realizing the DMD-based full-color volume holographic anti-counterfeiting technology. Background technique [0002] Anti-counterfeiting technology refers to the measures taken to achieve the purpose of anti-counterfeiting. It can accurately identify the authenticity within a certain range and is not easy to be imitated and copied. Anti-counterfeiting is a preventive measure taken against imitation or duplication activities for the purpose of deception without the permission of the owner. Anti-counterfeiting technology products are products made of anti-counterfeiting technology and have anti-counterfeiting functions for the purpose of anti-counterfeiting . [0003] The traditional holographic anti-counterfeiting three-dimensional display effect is not obvious, and it is basically a fake three-dimensional hologram. With the development of science and technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/00G03H1/02G03H1/04
CPCG03H1/0011G03H1/0248G03H1/0443G03H2001/0482G03H2001/0484
Inventor 杨佩考红旭马建设陈亮杨寅袁俊华邹铁钢
Owner SHENZHEN JINZHI GOLD&SILVER JEWELLERY INSPECTION RES CENT CO LTD
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