Hologram as a cheap and practical security logo has gradually been generally accepted by the people, in order to

facilitate customers holographic anti-counterfeit labels, and make a wise choice and request, the identification of

several of the security hologram performance analysis are as follows:

1.  2D/3D hologram

      This is a market most popular anti-counterfeit labels, the so-called 2 D/3D is ordinary two-dimensional logo (2-D)

in a hierarchical manner component before, during and after the downturn of the stereoscopic 3D level (3-D). Such

holograms have certain security of the following main features:

      A) as holograms can be divided into different, and in particular observation angle to see ordinary scanning

          equipment can not fully copy the image content, resulting in the process of amending the computer, and only

          experience with the naked eye in the image of the details ( such as: line thickness, font size, etc.) are not

          identical with the original standard, while levels of depth, with the only color intuitive, and therefore ultimately

          by the counterfeit logo and there will be real difference compared to standard;

      B) if taken in the 2-D logo or gray color information, produced by the true color or gray-scale image hologram is

          absolutely impossible under the imitation of the original subscript, superscript, because from the original

          acquisition of the necessary intensity and Color information is very difficult, unless the original counterfeiters

          can get on the map. It is therefore proposed, in the production of 2D/3D hologram to make full use of their

          own unique photos such as: Head or habitats, such as internal market. As a result of this hologram

          manufacturers can now produce many, in most cases consumers will be really difficult to counterfeit

          identification beacon and compared photos, which were brought to the pseudo-making opportunity for the

          gray color difficult to collect information, ZHANG Guan Lee things often happen.

2. encryption hologram

      The so-called encryption hologram is to use some special features in the optical holograms add some hidden

passwords or appear to increase the difficulty of counterfeiting logo. These include: a laser reading; 2, optical

microfilm; 3, low-frequency lithography; 4, random interference fringes; 5, such as moiré fringe. Following each of

these technologies to be introduced.

      (A) A laser to read: Principle of optical conjugate text or image information will be stored in holographic images.

           In ordinary circumstances, these messages do not show up, when irradiated with Laser pen, people can make

           use sulfuric acid to see the White Paper or store information. By storing the information can be text, logos,

           gray-scale images, or even an article, manifestations also reflection and transmission of two kinds.

      (B) optical microfilm: text messages using optical microfilm record in the hologram, the normal human eye could

           hardly identify, in 10 times, or even 100 times under a magnifying glass to observe specific content, under

           normal circumstances, the Chinese could shrink to 0.1 MM English may shrink to 0.05 MM.

      (C) low-frequency lithography: hologram on ways to advance non-interference fringe pattern designed to

           microfilm records directly in the form of hologram, these tricks stripes density than ordinary interference

           fringes low 10 times in the 100 line / MM around, and visual effects in certain parts hologram with a similar

           metallic luster of the diffraction pattern, if the stripe pattern is computer generated holograms, laser

           reproduction of its information available.

      (D) random interference fringes: in the production of holograms at random mechanism in place to record the

           hologram random interference pattern, this pattern is a significant characteristic, and can not be repeated,

           even if the same person used the same process in different moments The tricks are not the same, it is a good

           way of security. In addition to static interference fringes plane, has been developed to the dynamic,

           three-dimensional interference fringes, counterfeiters can not reproduce.

      (E) moiré interference Encryption: Using Mohr principle: the cyclical structure of the two sets of stripes can

           produce overlapping sets of the third cycle of the principle of pattern, in which a phase change its stripes in

           a logo and code, which logo is hidden in peacetime can not tell when a cycle with another stripe pattern

           emerged when overlapping.

3.  Lattice hologram (Lattice Application Integration)

     Will be divided into two laser beam interference-point, and then use computer programming controlling stepper

motor-point change in the direction and size of the angle of incidence and case-by-generated hologram record a wide

 range of dynamic tricks of its lattice can be changed to 1400 DPI. Principle speaking, the same type of lithography

machine is fully capable of mutual imitation their production patterns, although the lattice dynamic hologram pattern

turn to speculate their production process requires considerable expertise and experience. In fact lattice hologram

security features and ordinary 2D/3D similar, because the possession of such equipment has been a part of the

manufacturers. Lattice hologram merits more reflected in the packaging material, because it in a 360-degree angle,

you will see in the holographic effect. Lattice will hologram, as well as with ordinary 2 D/3D organic combination of

encryption, such as holographic, security features can be greatly enhanced, will be totally different because of the

combination of the two, is very difficult, at present, only a handful of manufacturers to master.

4.  True three-dimensional hologram / True 3D hologram imaging

     The hologram is an important feature of the 3-D display can be realized, three-dimensional hologram is really true

three-dimensional sculpture of the production model of its anti-forgery hologram significance lies in two aspects:

1. 3D model hologram difficult than ordinary shooting 2D/3D much higher, in particular will be a combination of both;

2. Even if the counterfeiters to produce three-dimensional model hologram, but three-dimensional objects, sculpture

    and photography, will perspective there is a great disparity, it is difficult to succeed. Therefore, this is a

    high-security of the hologram.

5.  Combination hologram (Four-dimensional hologram imaging)

 
     Portfolio hologram is to dozens or even hundreds of different two-dimensional images through dozens or even

hundreds of exposure recorded hologram. Its effect can be viewed from two aspects of, first, dynamic design similar

to the plane, various tricks can capture the dynamic changes pictorial plane, and the second is using 3-D software,

or use digital cameras, will be three-dimensional targets and the various aspects of the process of change with the

passage of time record, produced four-dimensional hologram, that the hologram can not only record and reproduction

of three-dimensional objects (X, Y, Z) characteristics, but also reproduction of the recording and three-dimensional

objects with the passage of time (T) changes, it is a forgery high performance hologram, or ordinary 2 D/3D true

three-dimensional holographic compared with the following characteristics:

     1, the amount of information huge, complex production process: general holographic security labels often through

         several exposure can be completed, and production of four-dimensional hologram need for dozens or even

         hundreds of frames to record two-dimensional images, which is the number of ordinary holographic exposure

         dozens or even several hundred times, which requires special equipment and more compact process can be

         achieved.

     2, as there is no restriction on shooting, the laser holography expanding the scope of the application of high-tech

         means: General holographic recording three-dimensional model needs 1:1 model entities shooting, and the first

         four-dimensional holographic collection objects from all angles of information, then to the acquisition of the

         two-dimensional images produced hologram, thus there is no restriction on the target shooting, it could be a

          real person, real objects, or even the computer configuration is illusory objects. No 1:1 proportion.

     3, 4-D show true color, beyond ordinary holographic label: Traditional holographic label can only realize plane

         layered, three-dimensional hologram can only 1:1 performance of the three-dimensional characteristics of Still

         Life, and the object can not restore the true color. Four-dimensional hologram is different, in a true

         three-dimensional color space objects reaction at the same time, also contained the three-dimensional space

         with time changes, such as holographic logo of a small television rich content, designers can above all means.