Researchers developed a novel, wireless, skin-interfaced olfactory feedback system capable of releasing various odours. This technology integrates scents into virtual reality (VR) and augmented reality (AR) to provide a more immersive user experience.
Researchers from City University of Hong Kong (CityU) have developed a wireless olfactory feedback system that integrates various odours into virtual and augmented reality. Using miniaturized odour generators, the technology enhances immersive experiences in 4D movies, medical treatment, and online teaching.
The system includes a skin-integrated patch and a flexible facemask with programmable odour release. By heating and melting odorous paraffin wax, different scents are emitted, ranging from pleasant fragrances like rosemary and pineapple to less desirable odours like durian. The system allows wireless and programmable operation, rapid response, and accurate odour concentration control.
Experiments demonstrated the system’s potential in various applications, such as virtual interaction in a garden with fruit fragrances and aiding amnesic patients in recalling memories associated with specific odours.
The researchers plan to develop a next-generation system with improved response time, size, and integration density for virtual and augmented reality applications.
The study, “Soft, Miniaturized, Wireless Olfactory Interface for Virtual Reality,” was published in Nature Communications.