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Compact transmission-type holographic near-to-eye three-dimensional display system and method based on point light source

A technology of three-dimensional display and point light source, applied in optics, optical components, instruments, etc., to achieve the effect of reasonable structure, convenient use, and elimination of visual fatigue

Inactive Publication Date: 2021-04-02
上海趣立信息科技有限公司
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  • Compact transmission-type holographic near-to-eye three-dimensional display system and method based on point light source
  • Compact transmission-type holographic near-to-eye three-dimensional display system and method based on point light source
  • Compact transmission-type holographic near-to-eye three-dimensional display system and method based on point light source

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[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] like Figure 1-5 As shown, the present invention proposes a compact transmissive holographic near-eye three-dimensional display method and system based on a spatial light modulator, which calculates the intensity information and depth information of a three-dimensional image into an ordinary two-dimensional hologram through a holographic algorithm, and Loaded on the liquid crystal spatial light modulator, using the phase modulation capability of the spatial light modulator, it can project a three...

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Abstract

The invention provides a compact transmission-type holographic near-to-eye three-dimensional display system and method based on a point light source. The compact transmission-type holographic near-to-eye three-dimensional display system comprises a control module (101), a point light source (102), a polarizing film (103), a non-polarizing beam splitter (104), a lens group (105), a polarizing beamsplitter (106), a spatial light modulator (107), a quarter-wave plate (108) and a reflector (109); intensity information and depth information of a three-dimensional image are calculated into a commontwo-dimensional hologram through a holographic algorithm and are loaded to the liquid crystal spatial light modulator, and the three-dimensional image with real depth of field information can be projected by utilizing the phase modulation capability of the spatial light modulator, so that visual fatigue of human eyes is eliminated; and a 4F system is simplified through a reflecting mirror turninglight path, so that a compact transmission type near-to-eye three-dimensional display system is realized.

Description

technical field [0001] The present invention relates to the technical field of holographic near-eye three-dimensional display, in particular to a compact penetrating holographic near-eye three-dimensional display system and method based on a point light source. Background technique [0002] At present, near-eye AR display technology mainly uses screens such as OLED and LCos. The image source provided is a two-dimensional image, and the three-dimensional image display effect needs to be realized through binocular parallax technology, which inevitably results in binocular convergence adjustment and visual refraction adjustment. Mismatch, resulting in visual fatigue. [0003] As a true three-dimensional display technology, holographic three-dimensional display technology can completely record and reconstruct the light field of three-dimensional objects, and provide all the information required by the human visual system. [0004] In a system that uses spatial light modulators ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0174
Inventor 孙立胡金鑫
Owner 上海趣立信息科技有限公司
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