Augmented reality (AR) is an interactive experience that combines the real world and computer-generated content.
A light engine, in the context of augmented reality (AR), is a term used to describe a component or system that generates and projects light in a controlled manner to create virtual images or augment the real-world environment. It's a critical part of AR devices like smart glasses or headsets.
The display unit in augmented reality (AR) is the component of an AR system that presents the virtual content to the user. It's a critical part of the AR experience, as it's responsible for overlaying digital information onto the real-world environment. For example it could be reflective surface where the light engine projects the visual experience or any final surface onto which user sees to feel the AR experience.