Freeform optics in applications such as AR-HMD, automotive AR-HUD, and TMA telescope

Abstract

Freeform optics offers advantages over sphere and asphere in Aberration correction, volume saving, and imaging performance improving. Freeforms are essential components in many optical systems such as augmented reality head mounted display, automotive augmented reality head up display, LiDAR system, smartphone camera, high performance lithography system, and etc. This paper will show and discuss several designs or applications of freeform optics. The applications of freeforms in more systems would be the focus in the next work.