When light passes through the scattering medium, disordered speckles are formed. The wavefront shaping technology can adjust the amplitude or phase of the incident light to achieve focusing and imaging. In recent years, the research on single-point focusing of wavefront shaping has been relatively thorough, while multi-point focusing has been few researched. In order to achieve controllable multi-point light focusing, we combined the phase superposition method with the Hadamard encoding algorithm to develop a new feedback optimization algorithm. Using the constructed transmission matrix model, we made numerical simulations of the algorithm, and finally successfully achieved multipoint uniform focusing and customized proportional focusing, and proved that the algorithm has strong anti-noise and light control capabilities in multi-point light focusing. Our research will have broad application prospects in the fields of optical manipulation and optogenetics in the future.
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