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Compound vibration amplitude modulation holographic ultrathin waveguide augmented reality display system and method

An augmented reality and display system technology, applied in optics, instruments, optical components, etc., can solve the problems of increasing the volume and quality of the system, and difficult to control the accuracy of the system, and achieve the effect of simple system structure, enhanced effect, and reduced volume

Active Publication Date: 2017-05-31
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0008] However, in order to achieve accurate alignment of complex amplitudes, optical elements such as beam splitters have to be added to the system to achieve beam combining, which increases the volume and quality of the system
In addition, alignment accuracy is difficult to control

Method used

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  • Compound vibration amplitude modulation holographic ultrathin waveguide augmented reality display system and method
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  • Compound vibration amplitude modulation holographic ultrathin waveguide augmented reality display system and method

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Embodiment Construction

[0026] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0027] See figure 1 As shown, a complex amplitude modulation holographic ultra-thin waveguide augmented reality display system includes a waveguide substrate 3, and both sides of the waveguide substrate 3 are provided with an optical modulator 1 and a first diffractive optical element 2, the optical modulator 1 and the first The diffractive optical elements 2 are arranged on both sides of the waveguide substrate 3 opposite to each other.

[0028] The light modulator 1 is used to load two phase images simultaneously. In the current three-dimensional augmented reality display technology field, when modulating the signals generated by two phase images, two light modulators 1 are required. When two optical modulato...

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Abstract

The invention provides a compound vibration amplitude modulation holographic ultrathin waveguide augmented reality display system and method. The system comprises a light modulator and a first diffractive optical element which are positioned on two sides of a waveguide base and opposite to each other, a second diffractive optical element on the same / opposite side of the first diffractive optical element is arranged at the other end of the waveguide base, two phase images are simultaneously loaded by one light modulator, and compound vibration amplitude waves of an object to be displayed are formed by different modulation of different exposure areas of the first diffractive optical element and transmitted in the waveguide base in a total-internal-reflection mode. According to the compound vibration amplitude modulation holographic ultrathin waveguide augmented reality display system and method, a three-dimensional augmented reality display system is light and thin, and the quality of compound vibration amplitude signals can be effectively improved.

Description

Technical field [0001] The present invention relates to a three-dimensional augmented reality display technology, and more specifically, to a complex amplitude modulation holographic ultra-thin waveguide augmented reality display system and method. Background technique [0002] Existing 3D augmented reality display systems are generally based on binocular parallax, integrated imaging, complex amplitude modulation and other technologies. [0003] A three-dimensional augmented reality display system based on the principle of binocular parallax, which is synthesized by the brain to generate a three-dimensional signal. There are two main types of current device structures. One type is a three-dimensional augmented reality display system based on a free-form surface waveguide (or prism). [0004] For example, Chinese patent applications CN104090330A and CN105629478, by introducing a free-form surface in the optical waveguide, complete the transmission of light to reduce the volume and qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G03H1/20G03H1/26
CPCG02B5/1857G02B27/0103G02B2027/0174G03H1/0248G03H1/202G03H1/265G03H2001/2207
Inventor 刘娟肖家胜高乾坤
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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