Holography is three-dimensional laser photography. The hologram is a true, three-dimensional record of the original object. It contains depth and parallax, which is the ability to see around the object to objects placed behind.
The word, hologram is composed of the Greek terms, "holos" for "whole view"; and gram, meaning "written". A hologram is a three-dimensional record of the positive interference of laser light waves. A technical term for holography is wavefront reconstruction. In holography, we record the positive interference of matching wavefronts of laser light. This three-dimensional record is formed as a diffraction pattern; a series of very fine lines, or concentric circles. This diffraction grating bends the viewing light back onto the path of the original recording wavefronts of laser light. The three-dimensional version of the object - the hologram - is reconstructed as light.
Worldwide, counterfeiters rob almost US$ 300 Billion of legitimate business turnover! This is a seriously threatening issue - while the counterfeit product absorbs your goodwill, it passes on its own shortcomings to your products. The results can be disastrous. Several deaths (of people and brands) have been reported due to a counterfeit product.
The very concept of Holograms has emerged from the need to have a mark of authentication that is simple enough to be identified by even an untrained or illiterate eye, and yet sophisticated enough to make it near impossible to be duplicated or replicated. A Hologram is the culmination of several processes involving physical, chemical and artistic inputs. The extremely high level of technology that goes into its manufacture coupled with the exclusivity of the technology makes it far beyond the reach of a counterfeiter.
Uniqueness is inherent in the very process of Holographic Recording. If the same holographer but at two different point of time or if two different holographers but at the same point of time, were to carry out holographic recording from " the positive" of each layer, minute examination will reveal subtle differences between the two versions of the same hologram created by them. Thus it is impossible to make an exact replica of the hologram and therefore it is regarded as virtually impossible to replicate.
How to Make Hologram Sticker?
step1. Make hologram master origination (Master origiantion shooting system, 2D/3D or Dot-matrix)
step2. Recombine Dot-matrix master in size of160mm*160. 2D/3D master doesn't need recombination. (Recombiner)
step3. Copy operation nickel shim from hologram master origination(Electronic Forming Machine)
step4. Emboss metallized PET film, transparent film(Narrow Web Hard Embosser)
step5. Laminate silicon liner together with embossed hologram film(Lamination Machine)
step6. Die-cutting, Slitting (Die-cutting Machine)
Some uses of holography
In display holography,the advent of pulsed lasers has made it possible to capture images of plants, animals and humans as well as inanimate objects.
Holographic packaging materials have become popular and cheap.
Security: The use of holograms on credit cards and bank-notes has reduced the opportunity for forgery
Interferometry: If a "double exposure" hologram is made of an object before and after the object is subjected to stress, the change in the shape of the object due to that stress is recorded as a series of light and dark bands. In industrial situations this can be used in component testing and quality control.
Medical records: Medical, dental and other records can be made both for teaching and for documentation.
Measurements: Particle physicists make holographic records of bubble-chambers from which accurate measurements can be made.
Display of artifacts: Many museums have made holograms of valuable articles in their collections, both for insurance purposes and to check for deterioration. In the former Soviet Union exhibitions of holograms of national treasures were sent to remote areas, enabling people to see and appreciate their national heritage without the necessity of travelling to major museums in Moscow or Leningrad (St. Petersburg)
Holographic Optical Elements (HOEs): If a hologram is made of a lens, mirror or other optical element, it acts in the same way as that element. HOEs can be used, for example, in bar-code readers..