Abstract
An augmented-reality (AR) device which presents virtual volumetric images to switchable integrated spaces is proposed and demonstrated. A bi-focal geometric phase (GP) lens can project the integrated volumetric images to switchable integrated spaces by switching the polarization of them. For that purpose, a combination of GP lens and an active polarization switching device has been adopted. A demonstration of an AR display with switchable integrations is also provided to verify the proposed concept.
Highlights
The AR display presenting virtual images on a real-world scene is thought to be one of the promising immersive devices for various field such as education, automobile, and manufacturing
In order to resolve that problem, researchers in the field have proposed methods to provide more realistic AR images by realizing volumetric AR devices based on the principles of holography [1], [2], integral imaging [3], [4], and multi-focal-planes [5]– [8]
There still exist some bottlenecks that the holography method suffers from narrow viewing angle, integral imaging approaches are having limited expression of three-dimensional (3D) depth, and multi-focal-planes display provides multiple planar images, which are not volumetric
Summary
The AR display presenting virtual images on a real-world scene is thought to be one of the promising immersive devices for various field such as education, automobile, and manufacturing. In order to resolve that problem, researchers in the field have proposed methods to provide more realistic AR images by realizing volumetric AR devices based on the principles of holography [1], [2], integral imaging [3], [4], and multi-focal-planes [5]– [8]. There still exist some bottlenecks that the holography method suffers from narrow viewing angle, integral imaging approaches are having limited expression of three-dimensional (3D) depth, and multi-focal-planes display provides multiple planar images, which are not volumetric. The integral floating display which is composed of a display device, a lens array, and a floating lens has been verified by several analyses that it can enhance the viewing parameters of the volumetric 3D image including the depth expression. Even the most advanced ideas above are still under the fundamental limitation that the image volume (the depth expression of the volumetric image) is
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