DNP's New Hologram Enables Authentication via Letters and Pictures Visible When Exposed to LED Light
Dai Nippon Printing Co., Ltd. (DNP) has developed the DNP LED Authentication Hologram, a new hologram product that enables authentication through letters and pictures visible only when the hologram is exposed to an LED point light source, like the ones found on smartphones. The product will be commercially available from December of this year.
Manufacturers of automobile parts, industrial parts, pharmaceuticals, and cosmetics use holograms to verify authenticity-that is, to keep imitations and pirated products out of the marketplace. Conventional hologram products allow authentication by viewing under a microscope or through special films. However, distributing such tools to all of the sales outlets and custom houses-much less to general consumers-is impractical. This has led to demand for a method to make authentication easier.
In response, DNP has developed a new type of hologram that enables easy authentication by allowing for letters and pictures to emerge when exposed to an LED point light source, like those found on smartphones and hand-held LED lights.
- The holograms have finely embossed patterns on the surface, allowing for letters and pictures to emerge on the surface when exposed to LED point light sources.
- The hologram enables authentication by using common LED light sources like those found on smartphones* or hand-held LED lights, eliminating the cost and labor associated with distributing dedicated tools like microscopes and special films.
- Authentication results are readily captured with the standard built-in cameras on smartphones and other devices and e-mailed to interested parties in distant locations.
- This new hologram can be manufactured without changing the conventional production process, allowing for adoption with no significant increase in costs compared to conventional holograms.
- Combining this new hologram with existing hologram security elements such as microtext allows for further enhancements in security levels.
* The authentication may be less successful with certain LED light sources equipped on smartphones and under certain lighting conditions.
left: letters and pictures to emerge on the surface when exposed to LED point light sources / right: DNP LED Authentication Hologram
DNP plans to market this newly-developed hologram to manufacturers of automobile parts, industrial parts, pharmaceuticals, cosmetics, etc., aiming for sales of 300 million yen in FY2017.