DELO, Sudbury, Massachusetts, has developed DELO PHOTOBOND UV acrylates for optoelectronics that enable fast and true-color bonding of holographic films manufactured by Covestro. The automotive industry, as well as many others, will benefit from rapid roll-to-roll manufacturing and better integration of the films into holographic end-use applications.
Augmented reality head-up displays (AR-HUDs) represent one of the most important future applications for holographic films. As these films are integrated into the windshield, projections merge with reality so that the navigation appears to be displayed directly on the road. The films allow for brighter and larger images while reducing installation space. This holographic foil technology also offers design freedom and reduced space requirements in the rear lights of cars and other automotive lighting applications. Customized holograms, like a warning message that says ‘Stop’ in the driver’s field of vision, can be designed to increase safety.
No matter the application, holographic films are thin, lightweight and completely invisible under so-called off-bragg conditions – whenever the coupled light does not meet certain requirements, like the correct wavelength. The films usually consist of RGB-sensitive photopolymers on a transparent carrier film and are embedded between two protective cover layers.
For more information, visit www.delo-adhesives.com.
