Fig. 1. Laser wireless transmission system

Fig. 2. “Positive-positive-negative” structure projection lens principle

Fig. 3. Projection lens ray tracing

Fig. 4. Projection lens spot diagram and distortion

Fig. 5. Thermal analysis of projection lens structure

Fig. 6. The illumination distribution of different temperatures at 25 m

Fig. 7. Schematic diagram of photovoltaic cell

Fig. 8. Single photovoltaic cell duty ratio of photosensitive surface

Fig. 9. Lens-photovoltaic cell integrated package

Fig. 10. Experimental apparatus and actual illumination distribution

Fig. 11. Receiving power and photoelectric efficiency test

Fig. 12. Receiving power and photoelectric efficiency at different distances

Fig. 13. Effect of temperature on photoelectric efficiency