OPTICAL MODULE AND OPTICAL SYSTEM THEREOF FOR HEAD-UP DISPLAY, AND VEHICLE

An optical module and an optical system thereof for head-up display, and a vehicle, relating to the technical field of head-up display. The optical module includes an image generation element and a light blocking assembly which are provided in sequence; the image generation element is used for forming an image signal, the image signal being incident on a receiving end through the light blocking assembly; and the light blocking assembly is further used for transmitting part of light in external light according to a polarization direction and/or wavelength. The image signal is not affected by the light blocking assembly when passing through the light blocking assembly; the external light passes through the light blocking assembly and the image generation element in sequence, and does not generate an image after passing through the image generation element; light heat of the external light would be gathered on the image generation element.