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Anti-fake grating, anti-fake trademark, hot stamping film and composite film

A grating, sinusoidal grating technology, applied in the fields of anti-counterfeiting trademarks, bronzing films and composite films, to enhance the anti-counterfeiting capability and application range

Inactive Publication Date: 2014-07-02
SHENZHEN SHENDA AURORA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the development of science and technology and the increasing material and cultural needs, simple public anti-counterfeiting and expert anti-counterfeiting can no longer meet the needs

Method used

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  • Anti-fake grating, anti-fake trademark, hot stamping film and composite film
  • Anti-fake grating, anti-fake trademark, hot stamping film and composite film
  • Anti-fake grating, anti-fake trademark, hot stamping film and composite film

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] see figure 1 , the present invention provides an anti-counterfeiting grating 100, which has a multi-channel discoloration effect. The anti-counterfeiting grating 100 includes a base layer 10, a grating information layer 20, and a medium layer 30 stacked in sequence. The grating information layer 20 is a one-dimensional sinusoidal Relief-type quasi-reflective volume subwavelength grating, the subwavelength grating is a double-period grating, which includes a small-period sinusoidal grating and a large-period sinusoidal grating, the period of the small-period sinusoidal grating is 320-420nm, and the large-period sinusoidal grating The period of the grating is 600-900nm.

[0025] It can be understood that the grating information layer 20 in the anti-counterfeiting grating 100 is a double-period grating structure.

[0026] When m...

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Abstract

The invention provides an anti-fake grating which has the multi-channel color changing effect. The anti-fake grating comprises a substrate layer, a grating information layer and a dielectric layer, wherein the substrate layer, the grating information layer and the dielectric layer are sequentially stacked. The grating information layer is a sub-wavelength grating with the one-dimensional sinusoidal relief type quasi-reflection size, the sub-wavelength grating is a double-cycle grating which comprises a small-cycle sinusoidal grating and a large-cycle sinusoidal grating, the cycle of the small-cycle sinusoidal grating ranges from 320 nm to 420 nm, and the cycle of the large-cycle sinusoidal grating ranges from 600 nm to 900 nm. The anti-fake grating has the multi-channel color changing effect, can well combine public anti-fake identification with expert identification, and can effectively improve the anti-fake capability and application range of anti-fake labels. The invention further provides an anti-fake trademark, a hot stamping film and a composite film.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting technology, in particular to an anti-counterfeiting grating with a multi-channel discoloration effect and an anti-counterfeiting trademark, bronzing film and composite film with the anti-counterfeiting grating. Background technique [0002] Optical anti-counterfeiting technology, which has emerged with the development of science and technology in today's era, is a means of anti-counterfeiting products mainly using physical optics. The basic principle is to use the various optical properties such as transmission, refraction, and diffraction when light propagates in various bearing media to make the formed anti-counterfeiting products obtain corresponding optical effects when observed, and this anti-counterfeiting method can have unique Uniqueness and uniqueness, not easy to imitate. Laser holographic grating anti-counterfeiting technology can not only present the main image of objects or design ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/18G09F3/02B32B27/08
Inventor 王笑冰黄燕燕李建兵张海明梁厚慧
Owner SHENZHEN SHENDA AURORA TECH
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