Mid-Air Imaging Based on Truncated Cylindrical Array Plate

This paper presents a mid-air imaging optical system consisting of two dimensionally arranged truncated cylindrical optical elements. The proposed system aims to reduce the impact of stray light and improve the limited viewing range of mid-air images in micromirror array plates, an existing mid-air imaging optical system. In this study, we used ray tracing to assess mid-air images formed by our proposed optical system. The results show that our method is practical in terms of the invisibility of stray light and brightness of the image when viewed from an angle.