In another variant a tiny screen is attached to the frame of the glasses, from which information is directed to the lens. This lens is actually a transparent mirror which guides the information into the sight of the wearer. Another alternative for the future could be 'Virtual Retinal Displays', in which the image is projected by laser straight into the eye. The best solution turned out to be a tiny camera fastened to the data-glasses and sending 25 images per second to the computer. This compares the image information with previously stored orientation points on the object and calculates the user's current position and line of vision.
Many details still remain to be solved.
The range of applications is, however, simply limitless. More and more products and facilities are designed on computer nowadays, and it would be beneficial if planners could see how their ideas fit into the real environment.