MOEVision: simple multiview display with clear floating image
MOEVision: simple multiview display with clear floating image
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MOEVision：简单的多视图显示，具有清晰的浮动图像
DOI：
10.1117/12.702713
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
H. Kakeya
中科院分区：
文献类型：
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作者：
H. Kakeya
本文提出了一种简单、廉价的多视点三维显示系统，该系统由液晶显示屏、凸透镜阵列和菲涅耳透镜组成。在所提出的系统中，阵列中的一对LCD片段和凸透镜起着投影仪的作用。由多个投影仪和大的凸透镜或凹面镜组成的多视图3D显示器的想法是古老而著名的。然而，传统的方法需要漫射器来显示连续的运动视差，这降低了图像的质量。为了解决这个问题，我们使用了凸透镜阵列，透镜之间没有间隙，实现了连续运动视差没有扩散。然而，凸透镜阵列必须产生没有像差的图像，以向观看者显示稳定的3D图像。实现这样的在组件透镜之间没有间隙的透镜阵列是困难且昂贵的。为了以简单的格式产生具有小像差的图像，作者提出了这样的光学系统，其中每个分量透镜通过保持LCD表面和透镜阵列之间的距离与分量透镜的焦距相同来产生平行光线，而不是产生图像。为了创建图像，我们使用大的凸型菲涅耳透镜，其仅用于在传统的多投影系统中将多视图图像分配到每个视点的目的。菲涅耳透镜接收来自透镜阵列的平行光，在其焦距处产生浮动的真实的图像，同时获得多视点图像的分布。利用这种配置，即使当我们使用由以低价格广泛获得的简单凸型菲涅尔透镜组成的透镜阵列时，我们也可以创建具有小像差的图像。
This paper presents a simple and inexpensive multiview 3D display system composed of a LCD panel, a convex lens array, and a Fresnel lens. In the proposed system a pair of the LCD fragment and a convex lens in the array plays the role of a projector. The idea of multiview 3D displays composed of multiple projectors and a large convex lens or a concave mirror is old and famous. The conventional methods, however, require diffusers to show continuous motion parallax, which decays the quality of the image. To solve this problem we use a convex lens array with no gaps between the lenses, which realizes continuous motion parallax without diffusers. The convex lens array, however, has to produce images without aberration to show the viewer stable 3D images. It is hard and expensive to realize such lens arrays without gaps between the component lenses. To produce images with little aberration in a simple format, the author proposes the optical system where each component lens makes the parallel light rays instead of creating an image by keeping the distance between the LCD surface and the lens array the same as the focal distance of the component lenses. To create an image, we use a large convex-type Fresnel lens, which has been used only for the purpose of distributing multiview images to each viewpoint in the conventional multi-projection systems. Fresnel lens, receiving parallel light from the lens array, creates a floating real image at its focal distance and attains distribution of multiview images at the same time. With this configuration we can create images with little aberration even when we use a lens array composed of simple convex-type Fresnel lenses widely available with low prices.