In a head-up display apparatus for a vehicle, an aspherical surface of a
reflection mirror compensates a distorted projected image caused by
non-planarity of a windshield at a predetermined projection area thereon.
When moving an eye point of a vehicle driver, an adjustment mechanism
moves a stopper pushing the reflection mirror to adjust a reflecting
angle so that the reflection mirror reflects light beams to the
projection area and the projection area reflects the light beams toward
the eye range. During the angle adjustment, an urging member and the
stopper hold the reflection mirror.