Waveguide device and augmented reality glasses

The utility model provides a waveguide device and augmented reality glasses. The waveguide device comprises a waveguide substrate, a coupling-in grating and a coupling-out grating, the coupling-in grating and the coupling-out grating are arranged on the waveguide substrate, the coupling-in grating is located on one side of the coupling-out grating, the coupling-out grating is provided with a first side edge facing the coupling-in grating and a second side edge opposite to the first side edge, and the coupling-out grating is divided into a first area and a second area. The first area extends from the first side edge to the second side edge and penetrates through the first side edge and the second side edge of the coupling-out grating, the first area is arranged close to the center of the coupling-out grating relative to the second area, and the first area comprises areas with at least two duty ratios. The waveguide device solves the problem that a waveguide device in the prior art is difficult to improve a cen