Conical surface holographic display method for expanding vertical field angle

A holographic display and field of view technology, applied in the field of holographic display, can solve problems such as limited field of view, and achieve the effect of expanding the field of view and rapid generation

Active Publication Date: 2021-11-02
SICHUAN UNIV
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Problems solved by technology

[0003] Aiming at the problem that the viewing angle in the vertical direction of the above cylindrical holographic display

Method used

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  • Conical surface holographic display method for expanding vertical field angle
  • Conical surface holographic display method for expanding vertical field angle
  • Conical surface holographic display method for expanding vertical field angle

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Embodiment Construction

[0016] A typical embodiment of a cone holographic display method for enlarging the vertical viewing angle of the present invention will be described in detail below, and the method will be further described in detail. It is necessary to point out here that the following examples are only used to further illustrate the method, and cannot be interpreted as limiting the protection scope of the method. Those skilled in the art make some non-essential aspects of the method according to the method content above. Improvements and adjustments still belong to the protection scope of the present invention.

[0017] The invention proposes a cone holographic display method for enlarging the vertical viewing angle. The method includes two parts: cone hologram generation and cone hologram reconstruction based on a cone diffraction model.

[0018] Cone diffraction model such as figure 1 As shown, the generation process of the cone hologram based on the cone diffraction model is specifically...

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Abstract

The invention provides a conical surface holographic display method for expanding a vertical field angle. According to the method, firstly, a conical surface diffraction model and a rapid calculation method thereof are provided, then on the basis of the conical surface diffraction model, a conical surface hologram generation and reconstruction method is provided, and the provided conical surface holographic display method can enlarge the vertical direction view field angle of cylindrical surface holographic display. Due to the fact that field angle expansion research and technical methods of holographic display are only limited to the horizontal direction, a method for expanding the field angle in the vertical direction is never researched and put forward. Therefore, the method solves the problem that the field angle in the vertical direction of holographic display is limited for the first time, and has good creativity and novelty; in addition, the method can be applied to desktop holographic three-dimensional display and has great application potential.

Description

technical field [0001] The invention relates to a holographic display technology, in particular to a method for generating a cone surface calculation hologram. Background technique [0002] As an ideal true three-dimensional display technology, holographic display has been receiving great attention. Cylindrical computational holography has become a recent research hotspot because of its 360° field of view. However, the field of view in the vertical direction of the cylindrical computational holographic display is the same as that of the plane, and this problem has never been studied and solved. Therefore, in order to further expand the vertical viewing angle of the cylindrical holographic display, it is urgent to propose a new diffraction model to realize the large viewing angle display of the hologram. Contents of the invention [0003] Aiming at the problem that the vertical viewing angle of the cylindrical holographic display is still limited, the present invention pr...

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Application Information

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IPC IPC(8): G03H1/22G03H1/08G03H1/00
CPCG03H1/22G03H1/0866G03H1/0005G03H2001/0883G03H2001/0088
Inventor 王君周振兴
Owner SICHUAN UNIV
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