Fig. 1. Structure block diagram of visible light wireless energy transmission system

Fig. 2. Optical transmission model of visible light wireless energy transmission system

Fig. 3. Light distribution curve of short arc xenon lamp

Fig. 4. Xenon lamp luminous angle distribution setting

Fig. 5. Xenon lamp 3D model

Fig. 6. Schematic diagram of concentrating principle

Fig. 7. Relationship among light energy utilization, spot radius, and defocus amount of light source

Fig. 8. Effect of reverse defocusing on the light spot. (a)-(d) Spot on receiving surface when negative defocus is 1 mm, 2 mm, 3 mm, and 4 mm; (e)-(h) radial energy distribution of light spot with negative defocus of 1 mm, 2 mm, 3 mm, and 4 mm

Fig. 9. Comparison of light energy utilization rate with and without plano-convex lens

Fig. 10. Relationship between light energy utilization and transmission distance

Fig. 11. Test of visible light wireless energy transmission system