Patent ID: 7280282
Filing Date: 2007-10-09
Classification: G02B

Abstract:
1. A head-up display apparatus comprising: a reflection mirror having an aspherical surface for compensating a distortion of a projected image caused by a non-planarity of a windshield; and a driving device for driving the reflection mirror to adjust projected light reflected at a reflecting point on the reflection mirror to a predetermined projecting point in a predetermined projection area on the windshield, said driving device being moved for pushing the reflection mirror to adjust the projected light reflected at the projection point to an eye point, from which a vehicle driver can see a forward view through the windshield and the projected image superimposed on the forward view, wherein the driving device rotates the reflection mirror about a rotating shaft disposed separately from the reflection mirror to be separated a selected distance in front of a reflecting surface of the reflection mirror and facing the reflecting surface.