Optical waveguide lens, head-up display system, and vehicle

Abstract

The present disclosure provides an optical waveguide lens, a head-up display system, and a vehicle. The optical waveguide lens includes: a lens body including a first surface and a second surface opposite to each other in a first direction, a grating structure arranged on the lens body and including an incidence grating and an outgoing grating, and a reflective layer arranged on the lens body and on the first surface. The incidence grating is arranged on the first surface, and the outgoing grating is arranged on the second surface. The reflective layer aligns with the outgoing grating in the first direction. The reflective layer can reduce the risk of light leaving the lens body from portions without grating, thereby increasing the intensity of outputting light of the optical waveguide lens, and improving the imaging effect of the head-up display system and the interaction experience between the user and the vehicle.