Abstract Mid-air imaging technology enables computer graphics (CG) images to move around in the real world. However, the big form-factor of large-format mid-air displays makes them bulky and limits their applicability. To reduce the size of such displays, we propose an optical design that realizes mid-air image movement by rotating the reflecting surface and the light source with motors and thus moving the virtual image of the light source. We made a prototype based on the calculation of the mirror and display angles and the distance between them and evaluated the luminance, sharpness, and position of the mid-air image of this prototype. We confirmed that the size of the prototype was smaller than that produced by the previous method, which will allow a smaller form-factor for creating mid-air images for different applications.

中文翻译：

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通过旋转光源和反射镜，显示可深度移动的空中图像的紧凑型光学系统

摘要 空中成像技术使计算机图形 (CG) 图像能够在现实世界中移动。然而，大尺寸空中显示器的大尺寸使它们体积庞大并限制了它们的适用性。为了减小此类显示器的尺寸，我们提出了一种光学设计，通过用电机旋转反射面和光源，从而移动光源的虚像来实现空中图像移动。我们根据镜子和显示角度的计算以及它们之间的距离制作了一个原型，并评估了这个原型的空中图像的亮度、清晰度和位置。我们确认原型的尺寸比以前的方法生产的要小，这将允许使用更小的外形来为不同的应用程序创建空中图像。