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True 3D Stereo Imaging Method Based on Metasurface Microlens Array

A micro-lens array, three-dimensional technology, applied in the field of micro-nano optics, can solve problems such as the limitation of the observer's field of view, and achieve the effects of simple implementation method, high integration convenience, and light weight

Active Publication Date: 2022-04-15
WUHAN UNIV
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  • Application Information

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Problems solved by technology

At present, most of the three-dimensional displays need to wear special glasses, so that the viewer's field of view is limited by the instrument

Method used

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  • True 3D Stereo Imaging Method Based on Metasurface Microlens Array
  • True 3D Stereo Imaging Method Based on Metasurface Microlens Array
  • True 3D Stereo Imaging Method Based on Metasurface Microlens Array

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Embodiment Construction

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] 1. Optimize the design of a nanop tile unit having a half-wave function.

[0027] The following is a rectangular square as an example. The length, width, and height of the nanodi unit structure are sub-wavelengths.

[0028] Such as figure 1 As shown, the XYZ right angle coordinate system is established, and the longitudinal direction of the nanoplay unit structure represents the long axis, the short side direction represents the short axis, φ is an angle between the long axis of the nanoplastic unit structure and the X-axis, i.e., nanotri unit The direction of the structure (φ ranges from 0 ° to 180 °), such as figure 1 Indicated.

[0029] The size parameters of the nanoplastic unit structure are optimized by electromagnetic simulation software, including the height H, length L, width w and unit structure base edge length C, such as ...

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Abstract

The invention discloses a true three-dimensional stereoscopic imaging technology based on a metasurface microlens array. A complete light wave front is spatially divided into many tiny parts through a metasurface microlens array, and each part is captured by a corresponding metasurface microlens array. The lens focuses on different spatial positions in the three-dimensional image space, and simulates a voxel point that produces a three-dimensional image. A series of metasurface microlenses can be focused to obtain a series of focal points. These focal points in space form a three-dimensional pixel lattice to realize True 3D stereoscopic imaging. The present invention does not require any auxiliary devices such as mechanical moving devices or fog screens, and can directly project a three-dimensional image in the air without wearing any additional viewing equipment. It can realize multi-angle observation by multiple people at the same time. More real advantages.

Description

Technical field [0001] The present invention relates to the field of microelectronics, and more particularly to a true three-dimensional imaging technique based on an ultra-surface microlense array. Background technique [0002] In recent years, with the advancement of optical technology, microelectronics and computer technology, stereoscopic display technology has also obtained a speedy development. Progress in display technology represents humans in pursuing more real visual enjoyment, two-dimensional flat images display in some ways that people have not satisfied with the need for three-dimensional objects with physical depth information, so three-dimensional stereo display should be born, and become In recent years, it has shown a research hotspot in the field. Compared with the two-dimensional image display, three-dimensional imaging technology can truly reproduce objective objects, especially the deep information of the object, that is, three-dimensional information to prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B30/27G02B27/00
CPCG02B27/0012
Inventor 郑国兴付娆李子乐单欣李仲阳
Owner WUHAN UNIV
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