FIELD: technologies for marking products.
SUBSTANCE: method includes forming image of binary code of product marking by means of recording of several superimposed volumetric reflective holograms, and receiving multicolor reflective hologram, while number N of superimposed holograms equals number of bytes of binary code, and angle of crossing of recording subject and support beams for each hologram is given ob basis of certain law. When restoring, received hologram is lighted by a beam of white light, reflected(or passed through) light from hologram is directed to spectrum analyzer, on output of which combination of spectral pikes is received, which matches given digital code.
EFFECT: higher degree of holograms protection, which are used in marking of products, from falsification.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MARKING PRODUCTS USING HOLOGRAMS | 2005 |
|
RU2290694C1 |
| METHOD FOR PROTECTING HOLOGRAMS FROM FORGERY AND DEVICE FOR AUTOMATIC CONTROL OF HOLOGRAM VALIDITY | 2003 |
|
RU2246743C2 |
| COMPOSITE MARK | 2008 |
|
RU2431193C2 |
| METHOD OF HIDDEN SMALL-INVASIVE MARKING OF OBJECT FOR ITS IDENTIFICATION | 2016 |
|
RU2644121C2 |
| MULTILAYER PROTECTIVE ELEMENT AND METHOD OF ITS OBTAINING | 2016 |
|
RU2642535C1 |
| COMPOSITE MARK | 2009 |
|
RU2413964C1 |
| METHOD FOR PROTECTING OBJECTS AGAINST COUNTERFEITING AND FOR THEIR IDENTIFICATION | 2001 |
|
RU2202821C2 |
| HOLOGRAM RECORDING PROCESS | 1997 |
|
RU2107320C1 |
| MULTILAYER OBJECT HAVING THREE-DIMENSIONAL HOLOGRAM | 2007 |
|
RU2438155C2 |
| METHOD OF SURFACE MARKING WITH CONTROLLED PERIODIC STRUCTURES | 2018 |
|
RU2696804C1 |
