Fig. 1. Polar coordinate description of circular waveguide

Fig. 2. Basic parameters of three-dimensional spherical model

Fig. 3. Ray-tracing algorithm for curved holographic waveguide

Fig. 4. Tracing simulation of curved holographic waveguide. (a) Spherical holographic waveguide; (b) cylindrical holographic waveguide; (c) distortion distribution of cylindrical holographic waveguide

Fig. 5. Experimental fabrication and display of cylindrical holographic waveguide. (a) Holographic waveguide element; (b) input image; (c) output image (cylindrical waveguide); (d) contrast image (planar waveguide); (e) navigation image (cylindrical waveguide)