CN2671807Y

CN2671807Y - Device having high resolution antio-fake printing membrane

Info

Publication number: CN2671807Y
Application number: CN 200320127790
Authority: CN
Inventors: 林武旭
Original assignee: Individual
Current assignee: Securitag Assembly Group Co Ltd
Priority date: 2003-12-16
Filing date: 2003-12-16
Publication date: 2005-01-19
Anticipated expiration: 2013-12-16

Abstract

The utility model discloses a device having high analysis anti-fake printing membrane. An anti-fake videotex message is hidden on the surface of a body. Wherein the anti-fake videotex message comprises a plurality of picture elements which are encrypted. Each picture element is respectively arranged at the position where the anti-fake videotex message is refracted after the optical refraction through an optical grating provided with a plurality of parallel columnar convex glasses. Each picture element has a distinguishability. The distinguishability is between 180 picture elements and 280 picture elements per square centimetre. Therefore, the picture element which is composed of the anti-fake videotex message is arranged at the reduced and deflected position generated after the picture element is focused and encrypted by the columnar convex glass of the optical grating. Therefore, when the optical grating is not used for deciphering the picture element, the eyes of people can not directly see the anti-fake videotex message. Simultaneously, because the people who make false products can not successfully see or copy the hidden anti-fake videotex message to strengthen the anti-fake efficiency.

Description

Has high device of resolving the anti-counterfeit printing film

Technical field

The utility model relates to printing technology, specifically, relates to a kind of high device of resolving the anti-counterfeit printing film that has.

Background technology

It is imitated that the article that generally have value are afraid of that all other people forge, and such as many expensive goods, personal document or financial card or the like, because of itself having certain important value, therefore, false proof is one of its indispensable functional item.

Existing anti-counterfeiting technology is quite a lot of, and wherein having a kind of is to utilize the variation of printing technology to reach false proof effect, such as using fine word printing to prevent the utilizing mode of computer scanning to forge; Or the information of two kinds of different picture elements (resolution) combined, by adjusting other picture element number percent (being shade of gray), allow human eye vision produce single tone sensation at certain distance.This kind technology can stash anti-counterfeiting information and reach antifalse effect, simultaneously do not influence the attractive in appearance of the whole space of a whole page again, and can whether know forgery, because duplicating machine can't efficient sampling to high picture element by duplicating, and make autotype show hiding graph text information, promptly whether forge as can be known.

Yet above-mentioned anti-counterfeiting technology can be cracked easily, and therefore, developing the stronger technological means of false proof effect has its necessity really, to guarantee the false proof effect of commodity, personal document, vital document or financial card etc.

Summary of the invention

Fundamental purpose of the present utility model is to provide a kind of high device of resolving the anti-counterfeit printing film that has, and improves the antifalse effect of print film by the making of high resolving power and the encryption of grating light refraction.

In order to achieve the above object, have high device of resolving the anti-counterfeit printing film in the utility model and include an Antiforge information and a body, the Antiforge Information hiding is on the surface of body, and include a plurality of be divided into Antiforge information through one have the grating light refraction of the parallel column convex lens of plural number after the picture element of position, described picture element has a resolution, and described resolution circle is between every square centimeter 180 to 280 picture element.

The effect that the utility model is specifically reached is:

The formation picture element of Antiforge information is located at after the column convex lens focus encryption of grating, the position that dwindles with skew that produces, therefore, when not using the grating deciphering, Antiforge information can be hidden in the background graph text information of body surface, at this moment, human eye can't find out directly that Antiforge information reaches false proof effect.

Simultaneously, when imitated person when failing to obtain the deciphering grating, promptly can't successfully see and obtain or duplicate hiding Antiforge information, make imitated can't be successful, further reach and strengthen false proof effect.

Description of drawings

Fig. 1 is the user mode stereographic map of preferred embodiment in the utility model;

Fig. 2 is that preferred embodiment uses a grating pair Antiforge information to make the synoptic diagram that adds, deciphers in the utility model;

Fig. 3 is the bottle cap in the utility model preferred embodiment, the stereographic map when Antiforge information is hidden when not using the grating deciphering;

Fig. 4 is the enlarged drawing in the zone of B shown in Fig. 3, and this figure is used to illustrate the relation that constitutes picture element between background graph text information and Antiforge information.

Embodiment

Have high device of resolving the anti-counterfeit printing film in the utility model and include an Antiforge information and a body, by a grating use mode that light refraction encrypts with the Antiforge Information hiding on the surface of body, as shown in Figure 1, for convenience of description, below an alphabetical A10 (being Antiforge information) is hidden on the bottle cap 20 (being body) as an illustration, so, when using bottle cap 20 to cover, during as bottle, can strengthen the antiforge function of bottle wine.

When generally printing figure message information is on an object, all be to constitute graph text information with plural number printing lines or site, and printing lines or site are referred to as picture element, the quantity dense degree of picture element is called resolution (Resolution) in the per unit area, so, for instance, letter A10 can be made of a plurality of picture elements, one highest wisdom directly is printed in alphabetical A10 on the bottle cap 20, as seen then alphabetical A10 is, therefore, the utility model uses a grating 21 to be about to alphabetical A10 earlier and does encryption, to form the position that alphabetical A10 constitutes picture element.

As depicted in figs. 1 and 2, grating 21 has the fine column convex lens 211 that are arranged in parallel of plural number, as shown in Figure 2, parallel dotted lines is represented the sight line of human eye, when sight line after column convex lens 211 refraction, can be focused in a position, therefore, when using 21 couples of alphabetical A10 of grating to encrypt, alphabetical A10 can be placed the position of grating 21 corresponding people's an eye line sides, by the depth of field of the column convex lens 211 of adjusting grating 21 with focal position, side is with respect to the focal position of each column convex lens 211 in addition in grating 21 to obtain alphabetical A10, this position is the position that alphabetical A10 constitutes picture element.

As Fig. 1, Fig. 3 and shown in Figure 4, wherein, see it if get the enlarged drawing of bottle cap 20 surperficial tiny area B, parallel solid line is the formation picture element that the background graph text information is gone up on expression bottle cap 20 surfaces, parallel dotted lines is the alphabetical A10 of expression constitutes picture element after grating 21 encryptions position, because alphabetical A10 is when column convex lens 211 light refractions focus on, it constitutes the initial picture element generation that directly constitutes alphabetical A10 of picture element meeting and dwindles and shift phenomenon, therefore, when not using grating 21 to be covered in the last generation deciphering in bottle cap 20 surfaces effect, human eye is the existence that can't directly find out alphabetical A10, reach the false proof effect of Information hiding, simultaneously, the resolution of this letter A10 is to have best concealment effect with every square centimeter 180 to 280 picture element.

When use grating 21 is covered in bottle cap 20 surperficial going up, constitute alphabetical A10 originally and dwindles and the picture element that is offset, become the visible parallel rays of human eye via column convex lens 211 light refractions, can reach the purpose that alphabetical A10 is manifested.

Therefore; body in the utility model; bottle cap 20, and article with conservation value such as IC smart card, vital document or currency as described above; and Antiforge information can be complexity or figure or literal arbitrarily; when imitated person when failing to obtain grating 21; promptly can't successfully see, obtain or duplicate hiding Antiforge information, make imitated can't be successful, reach false proof effect.

In addition; above-mentioned disclosed only be a technological means in the utility model; only be used for illustrating the preferred embodiment of the utility model; can not be as the protection domain in the utility model; because of the personage who is familiar with this technology can change it according to design spirit of the present utility model; as external form or size; but it is identical with disclosed technological means in the utility model in fact; therefore, every foundation design spirit of the present utility model changes or modifies and all should think and fall into protection domain of the present utility model.

Claims

1. one kind has high device of resolving the anti-counterfeit printing film, it is characterized in that: it includes an Antiforge information and a body, described Antiforge information can be located on the surface of described body hidingly, and include a plurality of picture elements, each described picture element is divided into has the position that dwindles and be offset behind the grating light refraction of plural column convex lens with described Antiforge information through one, and having a resolution, described resolution circle is between every square centimeter 180 to 280 picture element.

2. according to the high device of resolving the anti-counterfeit printing film that has described in the claim 1, it is characterized in that: each described picture element is printing lines.