Systems and methods for vacuum-forming aspheric mirrors

A method of forming a 3D mirror for a heads-up display (HUD) system includes providing a glass-based preform having a first major surface, a second major surface, and a minor surface connecting the first and second major surfaces, and further includes disposing the glass-based preform on a mold having a concave surface such that the first and second longitudinal side surfaces are adjacent to a longitudinal wall of a housing. The longitudinal wall extends from the concave surface to at least a height of the second major surface of the glass-based preform. The method further includes supplying avacuum and conforming the second major surface to the concave surface of the mold using the vacuum. The first and second transverse side surfaces have a curved shape corresponding to a curve of the concave surface a remain coincident with the concave surface during the conforming of the second major surface. 一种形成用于平视显示器(HUD)系统的3D镜子的方法包括提供基于玻璃的预成形件，所述基于玻璃的预成形件具有第一主表面、第二主表面及连接所述第一主表面与所述第二主表面的次表面；且进一步包括将所述基于玻璃的预成形件安置于具有凹表面的