Fig. 1. Structural diagram of LC optical wedge with rectangular aperture

Fig. 2. Coordinate system of LC optical wedge. (a) Plane coordinate system of effective area of LC optical wedge; (b) spatial coordinate system of beam deflection

Fig. 3. Length of optical wedge at different deflection directions

Fig. 4. Phase delay of 50 μm LC cell varying with effective voltage

Fig. 5. Interference fringes of LC optical wedge. (a) Interference fringes of LC optical wedge under different φ; (b) interference fringes of LC optical wedge with same φ and gradually increasing θ

Fig. 6. Test device diagram for deflection performance of LC optical wedge

Fig. 7. Beam deflection experiment (dashed circle represents initial position of light spot). (a) Different deflection direction angles;

Fig. 8. Comparison between measured values and theoretical values of different deflection angles When vmax=2.5Vand vmin=1.5V