Presentation Information
[16p-W9_326-10]Calculation of Optical Propagation Angle Conditions for Spherical Lenses and Radiation Waveguides Receivers in Optical Wireless Power Transmission
〇Masakazu Nakatani1, Miharu Usui1, Yukie Kubo1, Hideo Fujikake1 (1.Tohoku Univ)
Keywords:
Optical wireless power transfer,Spherical lenns,lightguide
In recent years, electric mobility such as electric vehicles, drones, and electric aircraft has been introduced to reduce petroleum energy consumption. Optical Wireless Power Transmission (OWPT) enables long-distance power transmission. However, conventional OWPT did not account for incident light from multiple directions.
Previous research proposed a receiver (Spherical Lenses and Radial Waveguide Receivers: SLRW Receiver) using a spherical lens + trapezoidal lens + radial waveguide + switching section + planar waveguide.
This study examined the structure required to prevent light leakage at the interface between the spherical lens and radial waveguide. Conditions for the radial waveguide curvature were derived from the spherical lens specifications. Increasing the refractive index of the spherical lens reduces the difference between the critical angle and the maximum incident angle, necessitating a larger curvature radius for the radial waveguide.
Previous research proposed a receiver (Spherical Lenses and Radial Waveguide Receivers: SLRW Receiver) using a spherical lens + trapezoidal lens + radial waveguide + switching section + planar waveguide.
This study examined the structure required to prevent light leakage at the interface between the spherical lens and radial waveguide. Conditions for the radial waveguide curvature were derived from the spherical lens specifications. Increasing the refractive index of the spherical lens reduces the difference between the critical angle and the maximum incident angle, necessitating a larger curvature radius for the radial waveguide.