This paper evaluates the spatial distortion of aerial image and proposes a novel optical design to utilize the distortion as visual expression. Our optical system is based on aerial imaging by retro-reflection (AIRR). Using acrylic plate as beam splitter, a clear aerial image can be obtained at low cost. However, when upsizing the device, there is a problem that aerial image was distorted because the acrylic beam splitter was deformed by its own weight. In this study, we have supported the beam splitter with guide wires and have evaluated the distortion of aerial image quantitatively by changing the experimental condition about guide wires and beam splitters. Simultaneously, we have deliberately generated irregular distortions of beam splitter to create a three-dimensional aerial image. Irregular deflection is caused by pulling the acrylic plate upward with an adjust wire and partially raising it. We have succeeded in forming three-dimensional aerial images that appear differently depending on the viewpoint.

本文评估了航拍图像的空间畸变，并提出了一种新颖的光学设计，将畸变用作视觉表达。我们的光学系统基于逆反射航空成像 (AIRR)。使用亚克力板作为分束器，可以低成本获得清晰的航拍图像。然而，在设备大型化时，由于丙烯酸分束器因自重而变形，因此存在空中图像失真的问题。在这项研究中，我们用导丝支撑分束器，并通过改变导丝和分束器的实验条件，定量评估了航拍图像的失真。同时，我们特意产生了分束器的不规则畸变，以创建三维航拍图像。不规则偏转是通过用调节线向上拉亚克力板并部分抬高而引起的。我们已经成功地形成了根据视点呈现不同的 3D 航拍图像。