HUD System Overview
A Head-Up Display (HUD) is a system that displays an image in the field of view of the driver. Usually this image is used to give information to the driver (the car speed for example).
A Head-Up Display system is composed of different modules. These modules strongly interact with one another.
A complete HUD system is represented below.
_HUD_HOD_System_Representation.png)
- The General settings allow to define the axis system used by the HUD system and the degree of polynomial equation used to design the mirrors.
- The Eyebox is a uniform grid representing the driver's eye position. A multieyebox mode allows you to create several eyeboxes and simulate the perception of the system by drivers of different heights.
- The Target Image represents the image the HUD system needs to produce. You need to define its position and size. The Virtual Image is the image the HUD system has produced.
- The Windshield corresponds to the inner surface of the CAD geometry that must be selected to be considered by the HUD system.
- The Projector comprises mirrors and the PGU. Mirrors are numbered following the light propagation (so they are numbered from the Picture Generation Unit (PGU) to the Eyebox).
- The Picture Generation Unit (PGU) is a module that emits the light perceived by the driver after reflection on the mirrors and the windshield.