Multicolor LED shaping design of diffractive optical elements based on differentiable light field

A method for designing an end-to-end shaping network of a differentiable light field is introduced to address challenges related to illumination inconsistency and limited energy utilization in the domains of augmented reality and indoor lighting. Distinct from traditional shaping algorithms, this method eliminates the need for pre-optimization, boasts a straightforward principle, and demonstrates exceptional capabilities in achieving high uniformity and energy utilization. Furthermore, its versatility allows for application to a diverse array of arbitrary shaping patterns. Simulation results reveal that diffraction patterns exhibit remarkable consistency under multi-color LED irradiation, with an energy utilization rate approaching 96% and a significantly low RMSE value of 0.03.