Dai Nippon Printing Launches Lippmann Hologram Featuring Pattern that Changes when Turned Upside Down
Security product combats counterfeiting by enabling easy visual authentication
Dai Nippon Printing Co., Ltd. (headquarters: Tokyo; president: Yoshitoshi Kitajima; capital: 114.4 billion yen; hereafter referred to as DNP) has developed a Lippmann hologram whose pattern changes when the image is turned upside down (i.e., rotated 180 degrees), allowing easy visual authentication. DNP will introduce the products into the market on July 14, for prevention of counterfeiting and for similar applications.
In recent years, the technologies employed by counterfeiters have grown increasingly sophisticated, with counterfeited items more closely resembling genuine articles. This trend has created the need for higher security, particularly in overseas markets. Because Lippmann holograms are extremely difficult to copy, they are often used to combat forgery. Nevertheless, the need for easier authentication has grown. In response, DNP has developed a Lippmann hologram whose pattern changes when the image is turned upside down. The change in the pattern can be clearly identified with naked eyes, allowing quick authentication without special equipment. Technology that allows ready authentication is extremely useful in preventing the counterfeiting of various items that require high security, like bank notes and passports.
Flipping the hologram upside down causes the pattern (circled in the picture) to change.
[Product Overview and Features]
Lippmann holograms are manufactured by coating film with a special polymeric material and altering the density of the interior of the material to form interference patterns due to changes in refractive index. The diffraction of light striking the interference pattern generates three-dimensional holographic images characterized by a great sense of depth. The superior design properties and robust security performance of Lippmann holograms are recognized worldwide.
Due to the advanced technologies required, few companies anywhere in the world are capable of producing Lippmann holograms. Of these companies, DNP was the first to mass-produce Lippmann holograms successfully and possesses the strongest representation technologies for these holograms. In addition, producing the transfer foil for Lippmann holograms is extremely difficult, and DNP is the only company in the world that produces products, such as labels with heat-transferred Lippmann holograms as a means of preventing counterfeiting.
Drawing on a new optical design process, DNP has now developed a Lippmann hologram whose pattern changes when the image is turned upside down. This product will be supplied as hologram labels or as labels with heat-transferred holograms that allow easy visual authentication, without the need for special equipment.
DNP is targeting cumulative sales of one billion yen over the three-year period to FY2017 by supplying the new product to companies that issue gift vouchers and coupons, as well as to manufacturers of products that need countermeasures against counterfeiting, such as automotive components, electronic components, batteries, pharmaceutical products, and supplies for office automation. Moving forward, DNP will continue to develop advanced security printing technologies and to produce products incorporating such technologies.
* Product prices, specification and service contents mentioned in this news release are current as of the date of publication. They may be changed at any time without notice.