Unlock instant, AI-driven research and patent intelligence for your innovation.

Large field of view and large size bionic holographic 3D dynamic display method

A three-dimensional dynamic and display method technology, applied in holographic process, holographic optical components, active addressing light modulators, etc., can solve the problems of small field of view and complex structure, avoid the loss of resolution, and optimize the system structure. , the effect of high display precision

Active Publication Date: 2021-04-27
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem of large field of view and large size bionic holographic three-dimensional dynamic display system with complex structure and small field of view in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large field of view and large size bionic holographic 3D dynamic display method
  • Large field of view and large size bionic holographic 3D dynamic display method
  • Large field of view and large size bionic holographic 3D dynamic display method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0034] The technical content of the second embodiment that is the same as the first embodiment will not be described repeatedly. The content disclosed in the first embodiment also belongs to the content disclosed in the second embodiment. The difference between the second embodiment and the first embodiment is: The lens array 3 has a curved structure. Such as figure 2 As shown, in the first manner, the microlens array 3 forms a parabolic structure protruding toward the side close to the pixel structure. Such as image 3 As shown, in the second mode, the microlens array 3 forms a parabolic structure that protrudes away from the pixel structure. Wherein, the image observed by the first method is a real image, and the image observed by the second method is a virtual image. The microlens itself has the function of magnifying the diffraction angle of the pixel point 2. The basic principle of expanding the viewing angle of the flat microlens array 3 and the curved microlens arra...

Embodiment 3

[0036] The embodiment of the present invention also provides a bionic holographic three-dimensional dynamic display method with large field of view and large size, including the following steps:

[0037] Loading the real-time generated computational hologram on the spatial light modulator 1;

[0038] The diffractive optical element 4 arranged in the light emitting direction of the spatial light modulator 1 changes the optical path to form a large viewing angle, and the diffractive optical element 4 has the same optical characteristics as the microlens array 3 .

[0039] The diffractive optical element 4 and the microlens array 3 in this embodiment have the same optical characteristics, and can expand the viewing angle together. The manufacturing process of the diffractive optical element 4 determines that different diffractive optical elements 4 have different effects on light transmission. Specifically, in this embodiment, the diffractive optical element 4 can be fabricated ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of three-dimensional stereoscopic display, in particular to a large-scale bionic holographic three-dimensional dynamic display method with a large field of view. The method includes: loading a real-time generated computational hologram on a spatial light modulator; passing a microlens array or a diffractive optical element having the same optical characteristics as the microlens array arranged on the light-emitting surface of the pixel structure of the spatial light modulator The optical path is changed to form a large viewing angle, and each microlens in the microlens array corresponds to each pixel of the pixel structure of the spatial light modulator one by one. It realizes the expansion of the field of view angle of the three-dimensional holographic display while saving the cost and simplifying the system structure design, so as to achieve large-scale reproduction. Moreover, due to the optimization of the system structure, the pixels on the spatial light modulator can be fully utilized to avoid the loss of resolution, and at the same time provide higher display fineness, which meets the growing needs of people.

Description

technical field [0001] The invention relates to the technical field of three-dimensional stereoscopic display, in particular to a large-scale bionic holographic three-dimensional dynamic display method with a large field of view. Background technique [0002] The spatial light modulator is a device loaded with a hologram for three-dimensional object reconstruction, and is the core component of a dynamic holographic three-dimensional display. Therefore, the level of the spatial light modulator device determines the reproduction effect such as the reproduced image size, resolution, and field of view angle. The bandwidth product of the spatial light modulator can be approximately expressed as the ratio of the display panel of the spatial light modulator to the smallest pixel area. The existing methods for increasing the space-bandwidth product are divided into two types: space division multiplexing and time division multiplexing. Space-division multiplexing is to increase the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/22G02B30/27G03H1/12G02B27/42
CPCG03H1/12G03H1/22G03H2001/2207G03H2001/2239G02B30/27G02B27/4205G03H1/2205G03H1/2249G03H2001/226G03H2223/17G03H2223/19G03H2223/23G03H2225/55
Inventor 刘娟段鑫慧
Owner BEIJING INSTITUTE OF TECHNOLOGYGY