Immersion is a unique way of experience, which makes participants fully participate in it by creating a complete virtual reality or a very realistic experience. This kind of experience can be applied to games, entertainment, education, training and other fields, which can greatly improve the attention, concentration and learning effect of participants.

There are three kinds of immersion technology: virtual reality (VR); Augmented reality technology (AR); Mixed reality technology (Mix Reality). Virtual reality technology is to simulate a complete virtual space through head-mounted displays and other devices, so that participants can be there. Augmented reality technology is realized by mobile phone or tablet computer, which combines virtual elements with real environment. Mixed reality technology combines virtual elements with real elements to create a world full of imagination and reality.

Immersion has a wide range of applications, especially in today's digital and intelligent era. In the field of games, immersive technology can make players more immersive in the game and enhance the realism of the game experience; In the field of education and training, it can make learners more focused and devoted and improve the learning effect; In the medical field, remote communication and diagnosis between doctors and patients can be realized, and telemedicine can be realized. The development of immersion technology is bringing more surprises and possible innovations.