Laminated metasurface for realizing three-dimensional display and design method thereof

一种三维显示、超表面的技术，应用在仪器、偏振元件、光学等方向，能够解决技术复杂、成本高、空间三维显示技术难度大等问题

Inactive Publication Date: 2020-05-15
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Spatial 3D display technology is difficult, costly, technically complex, and has relatively limited applications

Method used

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Embodiment Construction

[0038] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] This embodiment provides a stacked metasurface for three-dimensional display, including a base layer, a first nanobrick array layer, an isolation layer, and a second nanobrick array layer, and the base layer is divided into a plurality of uniformly sized unit structures , the first nanobrick array layer includes a plurality of first nanobricks of uniform size, the second nanobrick array layer includes a plurality of second nanobricks of uniform size, the second nanobricks and the first nanobricks The number of nano-bricks is the same; one of the first nano-bricks is arranged on the working surface of each of the unit structures, and one of the second nano-bricks is set correspondingly to one of the first nano-bricks, and the isolation layer...

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Abstract

The invention belongs to the technical field of micro-nano optics and three-dimensional display, and discloses a laminated metasurface for realizing three-dimensional display and a design method thereof. The laminated metasurface comprises a substrate layer, a first nano-brick array layer, an isolation layer and a second nano-brick array layer. The substrate layer is divided into a plurality of unit structures with the same size, the working surface of each unit structure is provided with a first nano brick, a second nano brick is arranged corresponding to the first nano brick, and the isolation layer is used for isolating the first nano brick from the second nano brick. The circularly polarized light enters the substrate layer, passes through the first nano-brick array layer, the isolation layer and the second nano-brick array layer in sequence and then is emitted out to generate a first target holographic image and a second target holographic image. According to the invention, the left view and the right view of human eyes can be displayed at the same time, and the three-dimensional display effect can be observed by using the parallax effect.

Description

technical field [0001] The invention relates to the technical fields of micro-nano optics and three-dimensional display, in particular to a laminated metasurface for realizing three-dimensional display and a design method thereof. Background technique [0002] The traditional display technology displays flat images, which cannot provide information consistent with the three-dimensional characteristics of real objects, and the immersive experience is insufficient. Based on this, 3D display technology has received more and more attention. [0003] Three-dimensional display is mainly divided into two types: spatial display and plane display. Spatial 3D display technology is difficult, costly, technically complex, and has relatively limited applications. Planar three-dimensional display technology has been vigorously developed in recent years, which is usually an image-to-stereoscopic display technology. Although there are many classifications, the basic principles are simila...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02B27/00G02B30/25G02B30/34
CPCG02B5/3025G02B27/0012
Inventor 李子乐郑国兴李仲阳邓联贵邓娟戴琦付娆
Owner WUHAN UNIV
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