The multi-angle beam bender based on transformation medium

Abstract Contrary to conventional beam benders that limit the beam path to a single, fixed bending angle regardless of the incident angle, this paper introduces a novel bender capable of guiding the beam path to a diverse and extensive range of bending angles. Through the transformation of lenses with curved edges into those with straight edges, the proposed device can effectively steer the beam path in various directions by simply arranging the incident angles.