Researchers from Beihang University and the City University of Hong Kong have developed a small, wireless odour generator to enhance virtual reality experiences in a number of applications.
The researchers say that the wireless odour generator can be attached to the skin
under the nose or worn as a mask during VR experiences, releasing aromas to help
students learn about new plants as well as helping patients to recall memories or to assist
deaf/blind users in VR applications.
The odour generator contains a mix of paraffin wax mixed
with food-grade liquid perfume which can be heated to around 45 degrees in two seconds
to release different scents.
The device can be equipped with up to 100 smells, including
durian, lavender, mojito and pancakes.
Researchers have previously attempted to create aroma devices for VR applications
but have encountered hurdles in creating a practical device due to designs involving bulky liquid
perfume bottles or wired headsets.
Photo credit: Yu Xinge, associate professor, department of biomedical engineering, CityU