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Reflection type augmented reality display system and device

An augmented reality and display system technology, applied in optics, instruments, nonlinear optics, etc., can solve the problems of low utilization rate of light energy and complex manufacturing process, and achieve the effect of low imaging cost, simple manufacturing process and improved utilization rate

Active Publication Date: 2018-11-13
MATRIXED REALITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a reflective augmented reality display system and equipment to solve the problems of low utilization rate of light energy and complex manufacturing process in the prior art

Method used

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  • Reflection type augmented reality display system and device
  • Reflection type augmented reality display system and device
  • Reflection type augmented reality display system and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , including a first image source 1, a polarizer 2, a linear polarization switcher 3, a quarter wave plate 4, a lens group 5, a first liquid crystal diaphragm 6 and a second liquid crystal diaphragm 7, and the first liquid crystal diaphragm 6 Except that the chiral direction of the added chiral agent is opposite to that of the second liquid crystal film 7 , other components are kept the same.

[0044] The first image source 1 displays virtual image information, and the linear polarizer 2 is used to convert light from the image source into linearly polarized light.

[0045] The linear polarization switcher 3 is used to change the polarization direction of the incident linear polarization by 90°, and to control the polarization switching function, that is, the linear polarization switcher 3 can be artificially controlled to switch between having and not having the polarization switching function; the linear polarization switcher 3 and quarter-wave plate 4 pos...

Embodiment 2

[0058] figure 2 The augmented reality display system showing Embodiment 2 of the present invention includes a first image source 1, a second image source 1.1, a polarizing beam splitter prism 3, a quarter wave plate 4, a lens group 5, a first liquid crystal diaphragm 6 and The second liquid crystal film 7, the first liquid crystal film 6 and the second liquid crystal film 7 are all consistent except that the chiral direction of the added chiral agent is opposite.

[0059] The first image source 1 and the second image source 1.1 are used to display virtual image information, and the first image source 1 and the second image source 1.1 are as parallel as possible to the surface of the polarization beam splitter prism.

[0060] The polarization beam splitter prism 20 reflects the light emitted by the first image source 1 to the lens group 5 on the one hand, and transmits the light emitted by the second image source 1.1 to the lens group 5 on the other hand. It can be seen from ...

Embodiment 3

[0070] see image 3 , including a first image source 1 , a polarizer 2 , a linear polarization switcher 3 , a quarter wave plate 4 , a first liquid crystal film 6 and a second liquid crystal film 7 .

[0071] The first image source 1 is used to display virtual image information, and the linear polarizer 2 is used to convert the light from the image source into linearly polarized light.

[0072] The linear polarization switcher 3 used in Embodiment 3 is the same as the linear polarization switcher 3 used in Embodiment 1.

[0073] The quarter-wave plate 4 is used to convert the linearly polarized light from the linear polarization switcher 3 into circularly polarized light.

[0074] The first liquid crystal film 6 has the same polarization selectivity function as the above example. That is, when the polarization of the incident light is consistent with the chirality of the chiral agent added when making the liquid crystal film, the liquid crystal film exhibits reflective prope...

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Abstract

The invention provides a reflection type augmented reality display system and device. The reflection type augmented reality display system includes an image source module, a polarization switching module, and a virtual-real synthesis module, wherein the image source module is used for generating virtual image information; the polarization switching module is used for changing polarization performance of the incident light; and the virtual-real synthesis module includes at least one liquid crystal diaphragm, and is used for reflecting the virtual image which has a specific polarization characteristic when penetrating the polarization switching module into an human eye, and the other side of the virtual-real synthesis module is external natural light which can be directly incident on the human eye. The reflection type augmented reality display device includes a helmet bracket, an image source module, a polarization switching module, and a virtual-real synthesis module, wherein the imagesource module, the polarization switching module, and the virtual-real synthesis module are arranged on the helmet bracket; the virtual-real synthesis module is arranged at the front of the image source module, the polarization switching module and the eye; and the reflection type augmented reality display device further includes a battery pack for supplying electric power for the image source module, the polarization switching module, and the virtual-real synthesis module.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an augmented reality system and equipment. Background technique [0002] Traditional augmented reality display systems usually use devices such as beam splitters or diffraction gratings as optical virtual-real synthesis modules of augmented reality display systems. However, using the beam splitter lens as the optical virtual-real synthesis module will cause problems such as low utilization rate of light energy. Specifically, for the beam splitter, it is difficult to realize high light energy utilization efficiency of the virtual image light and the external ambient light at the same time. Due to the complex manufacturing process of diffraction gratings, it is not conducive to the use of diffraction gratings to realize large-scale optical virtual-real synthesis modules, and it is also not conducive to the large-scale application of diffraction gratings in augmented reali...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02F1/01G02F1/13
CPCG02B27/0101G02B27/0172G02B2027/0114G02F1/0136G02F1/1313
Inventor 陈全明李燕刘澍鑫周鹏程李斯达王云凤刘跃达苏翼凯
Owner MATRIXED REALITY TECH CO LTD
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