Waveguide augmented reality display apparatus

A waveguide augmented reality display apparatus, comprising:

• an image source, configured to display an image and generate a first light beam and a second light beam with different optical properties according to data of the displayed image;
• a single waveguide, being spaced from the image source;
• a first in-coupling device, arranged on one side of the waveguide adjacent to the image source, and configured to couple the first light beam into the waveguide;
• a second in-coupling device, arranged on one side of the waveguide away from the image source, and configured to couple the second light beam into the waveguide, wherein both the first light beam and the second light beam are originated from a light beam generated by the image source according to data of a same displayed image;
• and
• an out-coupling device, arranged on the waveguide, and configured to couple out the first light beam and the second light beam propagating in the waveguide in a same preset area;
• wherein an out-coupling grating vector of the first light beam and an out-coupling grating vector of the second light beam are the same.