Touchable 3D Holograms Become Reality In Historic Breakthrough
In a world-first scientific breakthrough, researchers have developed a touchable 3D holographic display. For the first time, users can interact directly with projected light using gestures like pinching and rotating much like using a smartphone screen, but in mid-air. This innovative step forward could pave the way for more immersive learning environments and digital experiences.
A Softer Approach to Holograms
Traditional 3D holograms rely on rigid, oscillating surfaces to display volumetric images. These surfaces vibrate thousands of times per second to create the illusion of a floating object. However, touching them disrupts the illusion and risks damaging the device or injuring the user. Clearly, this posed a problem for incorporating tactile feedback.
To overcome this limitation, a team led by Dr. Elodie Bouzbib at the Public University of Navarra introduced a clever solution. Instead of using rigid materials, they built a display using elastic strips. As a result, users can safely touch and manipulate the projections without fear of harm or malfunction. This change not only ensures safety but also enhances the realism of interaction. Through image correction, the visuals remain stable even when touched, preserving their 3D quality.
Real-World Reactions and Future Applications
During testing, 18 participants explored the system, and the feedback was overwhelmingly positive. Most reported that using their hands felt far more natural than relying on a 3D mouse. In fact, touch provided a stronger sense of precision and control, making the experience more intuitive overall.
While the technology is still in its early stages, the possibilities are exciting. This touchable hologram system could transform classrooms, museums, and even remote collaboration tools. Imagine students rotating molecules in chemistry class or museum visitors interacting with ancient artifacts—without ever needing gloves or controllers.
The research has been published under the title “FlexiVol: a Volumetric Display with an Elastic Diffuser to Enable Reach-Through Interaction.” The team will present their work at the CHI 2025 Conference in Japan later this month, marking a significant step forward in the future of human-computer interaction.
