International Display Workshops General Incorporated Association

13:30 〜 13:50

[FMC6-1] High-Resolution Aerial Image by Placing a Ball Lens at a Virtually Conjugate Position in AIRR Optical System

*Kazuaki Takiyama1, Shiro Suyama1, Kenichiro Masaoka2,3, Hirotsugu Yamamoto1 (1. Utsunomiya University (Japan), 2. NHK Foundation (Japan), 3. NHK Science & Technology Research Laboratories (Japan))

Aerial display, AIRR, retro-reflection, MTF

https://doi.org/10.36463/idw.2023.0361

We propose an aerial imaging by retro-reflection (AIRR) optical system to form a high-resolution aerial image by placing a ball lens at a virtually conjugate position. The ball lens parallelizes the incident light on the retro-reflector. The modulation transfer function (MTF) of the proposed optical system is greatly improved.