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Optical system for augmented reality (AR) glasses

An optical system and augmented reality technology, applied in the field of optical engineering, can solve the problems of small exit pupil diameter, small field of view, and bulky system, and achieve the effects of simple manufacturing, large field of view, and easy manufacturing

Inactive Publication Date: 2020-02-11
杨建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an optical system for augmented reality glasses in order to solve the problems of the existing AR glasses with small viewing angle, small exit pupil diameter and bulky system

Method used

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  • Optical system for augmented reality (AR) glasses
  • Optical system for augmented reality (AR) glasses
  • Optical system for augmented reality (AR) glasses

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specific Embodiment approach 1

[0033] Specific implementation mode 1. Combination Figure 1 to Figure 10 Describe this embodiment, an optical system for augmented reality glasses, including a display system 1 and a spherical mirror 2; the spherical mirror 2 has two surfaces, the first surface is a partially reflective surface 2-1, which is used to The image on the display system 1 is enlarged and placed in the visible range of the human eye, the reflectivity can be between 1%-99%, and the second surface is the transmission surface 2-2, which is used to correct the ambient light to suit the degree of the wearer .

[0034] A display system 1 is placed in front of the pupil 3, and a spherical mirror 2 is arranged in front of the display system 1. The display system 1 is located on the focal plane of the spherical mirror 2, and the centers of the display system 1 and the spherical mirror 2 are near the center of the pupil 3. , the range is within 1cm;

[0035] As an example, through this embodiment, the entra...

specific Embodiment approach 2

[0048] Specific embodiment two, combine figure 1 with Figure 11 This embodiment is described. This embodiment is another embodiment of the optical system of the augmented reality glasses described in the first embodiment: it includes a display system 1 and a spherical mirror 2;

[0049] The spherical mirror 2 has two surfaces, the first surface is a partially reflective surface 2-1, which is used to enlarge the image on the display system 1 and place it in the visible range of the human eye, and the reflectivity can be in the range of 1%-99% %, the second surface is the transmission surface 2-2, which is used to correct the ambient light to suit the degree of the wearer.

[0050] A display system 1 is placed in front of the pupil 3, and a spherical mirror 2 is arranged in front of the display system 1. The display system 1 is located on the focal plane of the spherical mirror 2, and the centers of the display system 1 and the spherical mirror 2 are near the center of the pup...

specific Embodiment approach 3

[0054] Specific implementation mode three, combination figure 1 , figure 2 with Figure 12 Describe this embodiment, this embodiment is another embodiment of the optical system of an augmented reality glasses described in the first embodiment: it includes a display system 1, a spherical mirror 2 and a pupil 3; the form of coaxial symmetry is adopted, and the pupil 3 display system 1 is placed in front, and spherical mirror 2 is arranged in front of display system 1, and said display system 1 is located on the focal plane of spherical mirror 2, and the centers of spheres of display system 1 and spherical mirror 2 are near the center of pupil 3, The range is within 1 cm; the spherical reflective lens 2 has two surfaces, and the surface close to the display system is a partially reflective surface 2-1, and its reflectivity can be between 1% and 99%. The surface away from the display system is the transmission surface 2-2, which is used to correct the ambient light to adapt to ...

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Abstract

An optical system for AR glasses relates to the field of optical engineering, and can be used to solve the problems of small field angle, small exit pupil diameter and heavy system of the existing ARglasses. The optical system comprises a display system and a spherical reflecting lens; the spherical reflecting lens is provided with two surfaces, the first surface is a partial reflecting surface,and the second surface is a transmission surface; the display system is placed in front of the pupil and located in the focal plane of the spherical reflecting lens, and the spherical centers of the display system and the spherical reflecting lens are both located within the range of 1cm from the center of the pupil; the display system comprises linear array display pixels pasted on a transparentsubstrate, and a substrate extension part, an outer frame, a driving system and an electronic control system in the outer edge of the transparent substrate; and the driving system comprises a driven gear, a driving gear, a rotating bearing and a motor. Thus, a large field angle, a large exit pupil diameter and high resolution can be realized, and the glasses are light, simple to manufacture, low in cost, easy to realize, stable in component fixation and structure and free of stray light interference.

Description

technical field [0001] The invention relates to the field of optical engineering, in particular to an optical system of a novel augmented reality glasses. Background technique [0002] Augmented reality (AR for short) is a new technology that "seamlessly" integrates real world information and virtual world information. Augmented reality glasses are the main implementation of AR. It can provide users with a large picture and 3D effect. It has the potential to replace existing display and computing terminals such as mobile phones, computers and televisions, and has very broad application prospects. [0003] At present, there are a variety of AR technologies, including off-axis catadioptric structures, free-form surface prisms, waveguide glasses, etc., due to the constraints of Lagrangian invariants, it is difficult to solve the problem of large field of view, large exit pupil diameter and volume. contradictions between. The off-axis folding trans structure is generally hel...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0178
Inventor 杨建明
Owner 杨建明
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