Combined head up display (HUD) and camera system

An optical arrangement for a motor vehicle includes a head up display light field emitter that emits a light field. At least one mirror is positioned to reflect the light field such that the light field is again reflected by a windshield of the vehicle, and such that the light field is visible to a driver of the vehicle as a virtual image. The at least one mirror has a transparent section. A driver monitoring camera is positioned to capture an image of a face of the driver through the transparent section of the at least one mirror.