Smart glasses and their parallax correction methods, as well as augmented reality devices

Abstract

This application discloses a smart glasses and its parallax correction method, as well as an extended reality device, relating to the field of extended reality technology. The smart glasses include a waveguide lens, an optomechanical module integrating a light source, a beam splitter, and a parallax correction adjustment device, and an image detection module. The beam splitter is used to split the light source into first polarized light and second polarized light. The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment device to form a left visual field image, which is then projected onto the image detection module. The second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment device to form a right visual field image, which is then projected onto the image detection module. The image detection module is used to trigger the parallax correction adjustment device to adjust the left and right viewing adjustment mirrors when the left and right visual field images do not match, until the left and right visual field images match, thereby achieving binocular parallax correction to improve the wearer's visual experience.

Description

Technical Field

[0001] This application relates to the field of extended reality technology, and more particularly to a smart glasses and its parallax correction method, as well as an extended reality device. Background Technology

[0002] With the continuous development of XR (eXtended Reality) technology, smart glasses, as an important application carrier of XR technology, have attracted higher demands from users for low-power design.

[0003] To avoid the problem of power cord snagging caused by the separation of the power supply from the main body of the glasses, most current smart glasses adopt an integrated glasses structure and are equipped with a dual-optical module. This not only significantly increases the power consumption of smart glasses, but also inevitably exposes them to the risk of physical impact such as drops or external pressure during daily wear. This causes the position of the dual-optical components of the smart glasses to change, resulting in increased binocular parallax, ghosting, and dizziness, which seriously interferes with the wearer's visual experience.

[0004] Therefore, while ensuring low power consumption of smart glasses, how to suppress parallax caused by physical impact to improve the wearer's visual experience is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The main objective of this application is to provide a smart glasses and a parallax correction method thereof, as well as an extended reality device, which aims to suppress parallax phenomena caused by physical impacts to smart glasses in order to improve the wearer's visual experience.

[0006] To achieve the above objectives, this application provides a smart glasses, which includes a waveguide lens, an optomechanical module, and an image detection module. The optomechanical module includes a light source, a beam splitting component, and a parallax correction adjustment component.

[0007] The beam splitting component is configured to split the light source into a first polarized light and a second polarized light. The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment component to form a left visual field image, which is then projected onto the image detection module. The second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment component to form a right visual field image, which is then projected onto the image detection module.

[0008] The image detection module is configured to determine a visual field matching result based on the left visual field image and the right visual field image, and in response to the visual field matching result being that the left visual field image and the right visual field image do not match, trigger the parallax correction adjustment device to adjust the left and right visual field adjustment mirrors until the left visual field image matches the right visual field image.

[0009] In one embodiment, the parallax correction adjustment device includes a left pupillary distance adjustment module and a right pupillary distance adjustment module;

[0010] The left liquid mirror of the left interpupillary distance adjustment module constitutes the left viewing adjustment mirror surface, which is disposed between the left light-emitting surface of the optical engine module and the left eye region. The right liquid mirror of the right interpupillary distance adjustment module constitutes the right viewing adjustment mirror surface, which is disposed between the right light-emitting surface of the optical engine module and the right eye region.

[0011] In one embodiment, the left pupillary distance adjustment module and the right pupillary distance adjustment module are the same pupillary distance adjustment component, and the left liquid lens and the right liquid lens are the same liquid lens.

[0012] The interpupillary distance adjustment device includes a magnetic metal strip and a drive unit. The liquid lens includes a liquid layer, a top glass and a bottom glass. The liquid layer is disposed between the top glass and the bottom glass. The magnetic metal strip is disposed on both sides of the liquid layer. The magnetic metal strip is fixedly connected to the top glass. At least one set of the drive unit is magnetically attracted on the side of the magnetic metal strip that is not fixedly connected to the top glass.

[0013] In one embodiment, the beam-splitting assembly includes a beam-splitting prism, the beam-splitting surface of the beam-splitting prism being a beam-splitting mirror surface of the beam-splitting assembly facing the light source, the total internal reflection surface of the beam-splitting prism being a total internal reflection mirror surface of the beam-splitting assembly being disposed on the opposite side of the beam-splitting mirror surface, a polarizing beam-splitting film being attached to the beam-splitting mirror surface, and an anti-reflection film being coated on the total internal reflection mirror surface.

[0014] The beam splitter is configured to split the light source into a first polarized light and a second polarized light that are perpendicular to each other through the beam splitter mirror. When the first polarized light is projected onto the left reflecting mirror of the beam splitter component through the beam splitter mirror, the second polarized light projected by the beam splitter mirror is reflected onto the right reflecting mirror of the beam splitter component through the total internal reflection mirror.

[0015] In one embodiment, the optomechanical module includes a left reflector and a right reflector, and the beam-splitting assembly further includes a reflecting prism;

[0016] The reflecting prism is disposed between the left and right reflecting elements. The left reflecting surface of the reflecting prism forms the left reflecting mirror surface of the beam splitter assembly facing the beam splitter surface of the beam splitter assembly, and the right reflecting surface of the reflecting prism forms the right reflecting mirror surface of the beam splitter assembly facing the total internal reflection mirror surface of the beam splitter assembly.

[0017] The reflecting prism is configured to project the second polarized light onto the right reflector through the right reflecting mirror while the first polarized light is projected onto the left reflector through the left reflecting mirror.

[0018] In one embodiment, the left reflector includes a left relay lens, a left polarizing beam splitter, a left lens, a left modulation screen, and a left exit pupil lens;

[0019] The left polarizing beam splitter is disposed between the left relay lens and the left lens. The left relay lens is disposed facing the left reflective mirror of the beam splitter assembly. The left modulation screen is disposed on the side of the left lens away from the left polarizing beam splitter. The side of the left exit pupil lens facing the left viewing adjustment mirror constitutes the left light-emitting surface of the optomechanical module.

[0020] The left polarization beam splitter is provided with a phase conversion surface and a left beam splitting surface;

[0021] The phase conversion surface is configured to convert the first polarized light, which is converged by the left relay lens, into the second polarized light, and then project it through the left lens onto the left modulation screen to form the left field of view image. A phase conversion film is attached to the phase conversion surface.

[0022] The left beam splitter is configured to transmit the left visual field image projected by the left modulation screen through the left exit pupil lens to the left eye region facing the left vision adjustment mirror and then to the image detection module. A polarizing beam splitter film is attached to the left beam splitter.

[0023] In one embodiment, the right reflector includes a right relay lens, a right polarizing beam splitter, a right lens, a right modulation screen, and a right exit pupil lens;

[0024] The right polarizing beam splitter is disposed between the right relay lens and the right lens. The right relay lens is disposed facing the right reflecting mirror of the beam splitter assembly. The right modulation screen is disposed on the side of the right lens away from the right polarizing beam splitter. The side of the right exit pupil lens facing the right viewing adjustment mirror constitutes the right light-emitting surface of the optomechanical module.

[0025] The second polarized light is projected onto the right relay lens through the right reflecting mirror and then converged. The converged second polarized light is then projected onto the right modulation screen according to the light propagation direction from the right polarizing beam splitter to the right lens to form the right field of view image.

[0026] The right beam splitter is configured to transmit the right visual field image projected by the right modulation screen through the right lens to the right eye region facing the right eye region via the right exit pupil lens and then to the image detection module. A polarizing beam splitter film is attached to the right beam splitter.

[0027] In one embodiment, the optomechanical module further includes a projection optics element disposed between the light source and the beam splitting component;

[0028] The projection optics include a collimating lens, a homogenizing lens, and a relay lens. The homogenizing lens is disposed between the collimating lens and the relay lens. The collimating lens is oriented towards the light source, and the relay lens is oriented towards the beam-splitting mirror of the beam-splitting assembly.

[0029] Furthermore, to achieve the above objectives, this application also provides a parallax correction method for smart glasses, wherein the parallax correction method for smart glasses is applied to any of the smart glasses described above, and the parallax correction method for smart glasses includes:

[0030] The light source is split into first polarized light and second polarized light by a beam splitter;

[0031] The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment device to form a left visual field image, and the second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment device to form a right visual field image.

[0032] After receiving the left and right field-of-view images projected by the waveguide lens through the image detection module, the field-of-view matching result is determined based on the left and right field-of-view images. In response to the mismatch between the left and right field-of-view images, the parallax correction adjustment device is triggered to adjust the left and right adjustment mirrors until the left and right field-of-view images match.

[0033] Furthermore, to achieve the above objectives, this application also provides an augmented reality device, which includes smart glasses; or,

[0034] The extended reality device includes a memory, a processor, and a parallax correction program for smart glasses stored in the memory and executable on the processor. When the parallax correction program for smart glasses is executed by the processor, it implements the steps of the parallax correction method for smart glasses described above.

[0035] This application provides a smart glasses and its parallax correction method, as well as an extended reality device. The smart glasses integrate a waveguide lens, an optomechanical module, and an image detection module. By setting a beam splitter and a parallax correction adjustment component in the optomechanical module of a single light source, the smart glasses significantly improve the wearer's visual experience by effectively suppressing parallax phenomena caused by physical impacts while ensuring low power consumption. Specifically, the beam splitter is configured to accurately split the light emitted by the light source into first polarized light and second polarized light. The first polarized light and the second polarized light pass through the left and right viewing adjustment mirrors of the parallax correction adjustment component, respectively, and are projected onto the left and right eye areas of the waveguide lens, forming clear left and right visual field images. This allows the visual display needs of both eyes to be met using only one light source, avoiding the high power consumption problem of traditional dual-optical-mechanical module configurations. In other words, this application significantly reduces the power consumption of the smart glasses by splitting the light from a single light source using the beam splitter. Next, the image detection module is connected to the waveguide lens. The system projects left and right visual field images and detects the matching results between them in real time. If a mismatch is detected, indicating a parallax between the left and right visual field images, the system immediately triggers a parallax correction adjustment mechanism to adjust the left and right adjustment mirrors until the left visual field image projected onto the left eye through the left adjustment mirror matches the right visual field image projected onto the right eye through the right adjustment mirror. This effectively eliminates visual discomfort caused by physical impact or other factors and significantly improves the wearer's visual experience. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall optical principle of the smart glasses according to the first embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the left and right field-of-view images involved in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the interpupillary distance adjustment device involved in the embodiments of this application;

[0041] Figure 4 This is another schematic diagram of the interpupillary distance adjustment device involved in the embodiments of this application;

[0042] Figure 5 This is a schematic diagram of the driving unit involved in the embodiments of this application;

[0043] Figure 6 This is an optical schematic diagram of the smart glasses according to the first embodiment of this application;

[0044] Figure 7 This is another optical schematic diagram of the smart glasses involved in the first embodiment of this application;

[0045] Figure 8 This is a schematic diagram of the beam-splitting prism involved in the first embodiment of this application;

[0046] Figure 9 This is a schematic diagram of the left-polarizing beam splitter according to the first embodiment of this application;

[0047] Figure 10 This is a schematic diagram of the waveguide lens involved in the first embodiment of this application;

[0048] Figure 11 This is a schematic diagram of the eyeglass frame 400 according to the first embodiment of this application;

[0049] Figure 12 This is a schematic diagram of the right-polarizing beam splitter according to the first embodiment of this application;

[0050] Figure 13 This is a schematic diagram of the smart glasses structure according to the first embodiment of this application;

[0051] Figure 14 This is a schematic flowchart of the second embodiment of the parallax correction method for smart glasses in this application;

[0052] Figure 15 This is a schematic diagram of the structure of the extended reality device involved in the embodiments of this application.

[0053] Explanation of icon numbers:

[0054] 100. Waveguide lens; 11. Left input area; 12. Right input area; 13. Left output area; 14. Right output area; 15. Image detection area; 200. Optomechanical module; 300. Image detection module; 10. Light source; 20. Beam splitting assembly; 21. Beam splitting prism; J1. First triangular prism; J2. Second triangular prism; 22. Reflecting prism; 30. Parallax correction adjustment component; 31. Left pupil distance adjustment module; 3 2. Right pupil distance adjustment module; Q100, pupil distance adjustment component; Q10, liquid lens; Q11, top glass; Q12, liquid layer; Q13, bottom cover glass; Q20, magnetic metal strip; Q30, drive unit; Q31, magnetic component; Q32, telescopic rod; Q33, power component; 40, left reflector; 410, left relay lens; 420, left polarizing beam splitter; L1, first polarizing beam splitter prism; L2, second polarizing beam splitter prism; Two polarizing beam splitters; L3, left reflecting mirror; 430, left mirror; 440, left modulation screen; 450, left exit pupil mirror; 50, right reflecting element; 51, right relay mirror; 52, right polarizing beam splitter; 53, right mirror; 54, right modulation screen; 55, right exit pupil mirror; R1, third polarizing beam splitter; R2, fourth polarizing beam splitter; R3, right reflecting mirror; 60, projection optics; 61, collimating mirror; 62. Uniform lens; 63. Relay lens; 400. Eyeglass frame; 41. Left light-passing aperture; 42. Right light-passing aperture; 43. Image detection aperture; 44. Nose pad hole; 45. Hinge hole; 46. Temple pin; 500. Eyeglass shell; 600. Nose pad; 700. Temple; S. First polarized light; P. Second polarized light; PBS1. Polarizing beam splitter; HWP1. Phase conversion film; QWP1. Phase retardation film.

[0055] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0057] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0058] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0059] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application.

[0060] In the field of XR (eXtended Reality) technology, smart glasses, as a crucial carrier of XR technology, directly determine the quality of user experience through their design and functional sophistication. Based on varying degrees of integration, smart glasses are mainly divided into two categories: separate and integrated. Separate smart glasses effectively solve the power supply problem by separating the power supply and drive modules from the main body of the glasses. However, the resulting dangling wires significantly reduce the convenience and comfort of wearing them, failing to meet users' high demands for constant wear. In contrast, integrated smart glasses integrate the functional modules with the main body of the glasses, successfully avoiding the dangling wire problem. However, the dual-optical-engine module on the glasses consumes a large amount of power, requiring a large-capacity battery. This increases the weight of the glasses, putting extra strain on the wearer's head and severely impacting the wearing experience. Furthermore, smart glasses inevitably face the risk of physical impacts such as drops or external pressure during daily wear, causing displacement of the binocular optical components, increasing binocular parallax, and resulting in ghosting and dizziness, severely interfering with the wearer's visual experience.

[0061] To address the shortcomings of traditional smart glasses, this application provides a smart glasses, a parallax correction method thereof, and an extended reality device. This not only reduces the power consumption of the smart glasses and decreases the battery capacity requirement, thereby reducing the overall weight of the glasses, but also incorporates an adaptive adjustment structure to address binocular parallax variations, ensuring the normal operation of the glasses and significantly improving the wearer's visual experience.

[0062] This application provides a smart glasses embodiment, referring to... Figure 1 As shown, Figure 1This is a schematic diagram of the overall optical principle of the smart glasses according to the first embodiment of this application. The smart glasses include a waveguide lens 100, an optomechanical module 200, and an image detection module 300. The optomechanical module 200 includes a light source 10, a beam splitter 20, and a parallax correction adjustment element 30. The beam splitter 20 is configured to split the light source 10 into a first polarized light S and a second polarized light P. The first polarized light S is projected onto the left eye region of the waveguide lens 100 through the left-view adjustment mirror of the parallax correction adjustment element 30 to form a left visual field image, which is then projected onto the image detection module 300. The second polarized light P is projected onto the right eye region of the waveguide lens 100 through the right-view adjustment mirror of the parallax correction adjustment element 30 to form a right visual field image, which is then projected onto the image detection module 300.

[0063] In this embodiment, the smart glasses provided in this application can be understood as XR glasses. These XR glasses can be a glasses structure combining one or more of the following technologies: AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality). For example, refer to... Figure 1 The beam splitter 20 splits the unpolarized light from the light source 10 into a first polarized light S and a second polarized light P. The first polarized light S and the second polarized light P are then projected onto the left and right eye regions of the waveguide lens 100 through the left and right viewing adjustment mirrors of the parallax correction adjustment element 30, respectively, forming clear left and right visual field images. This allows the visual display needs of both eyes to be met using only one light source 10, avoiding the technical problem of high power consumption in smart glasses caused by the traditional dual-optical-engine module 200 configuration. In other words, this application significantly reduces the power consumption of smart glasses by splitting the light from a single light source 10 through the beam splitter 20, thereby reducing the dependence on large-capacity batteries, further reducing the overall weight of the smart glasses, and thus significantly improving the user's wearing experience.

[0064] It should be noted that the light source 10 includes, but is not limited to, LED (Light Emitting Diode) lamps. The incident light from the light source 10 can be understood as unpolarized light from the light source 10. The first polarized light S can be understood as S-polarized light, which refers to polarized light whose electric field vibration direction is perpendicular to the light propagation direction of the incident light. The second polarized light P can be understood as P-polarized light, which refers to polarized light whose electric field vibration direction is the same as the light propagation direction of the incident light.

[0065] The image detection module 300 is configured to determine the visual field matching result based on the left visual field image and the right visual field image, and in response to the visual field matching result being that the left visual field image and the right visual field image do not match, trigger the parallax correction adjustment element 30 to adjust the left and right visual field adjustment mirrors until the left visual field image and the right visual field image match.

[0066] In this embodiment, the left and right field-of-view images formed by the waveguide lens 100 are coupled to the image detection module 300. At this time, after receiving the left and right field-of-view images coupled from the waveguide lens 100, the image detection module 300 constructs a model based on the center position and four corner edges of the left field-of-view image. Figure 2 (a) shows the left crosshair template image, constructed using the center and four corner edges of the right field of view image. Figure 2 (b) shows the right cross template image; next, it is determined whether the left cross template image completely overlaps with the right cross template image. If the left cross template image does not completely overlap with the right cross template image, the visual field matching result is determined to be that the left visual field image and the right visual field image do not match. In response to the visual field matching result that the left visual field image and the right visual field image do not match, the parallax correction adjustment component 30 is triggered to adjust its right visual adjustment mirror with the left visual field image as the reference optical image. This causes the incident angle of the second polarized light P, which is formed by the right exit pupil light projected onto the right eye area through the right visual adjustment mirror, to be deflected until the right visual field image coupled out by the waveguide lens 100 after the deflection is completely superimposed with the left visual field image. This realizes the binocular parallax correction of the smart glasses, effectively eliminates visual discomfort caused by physical impact or other factors, and significantly improves the wearer's visual experience.

[0067] It should be noted that using the left visual field image as a reference optical image to drive the parallax correction adjustment member 30 to adjust the right viewing adjustment mirror is only one feasible implementation of this application, and this application does not impose any limitations here. Exemplarily, it is also possible to use the right visual field image as a reference optical image to drive the parallax correction adjustment member 30 to adjust the left viewing adjustment mirror.

[0068] In another embodiment, the left cross template image and the right cross template image are compared with a preset cross standard template image. If the left / right cross template image does not completely overlap with the cross standard template image, then in response to the field of view matching result that the left / right field of view image does not match the cross standard template image, the parallax correction adjustment component 30 is immediately driven to adjust the left / right viewing adjustment mirror until the left / right field of view image formed by the first / second polarized light passing through the left / right viewing adjustment mirror and entering the left / right eye area of ​​the waveguide lens 100 completely overlaps with the cross standard template image. This realizes binocular parallax correction of smart glasses, effectively eliminates visual discomfort caused by physical impact or other factors, and significantly improves the wearer's visual experience.

[0069] Furthermore, in some feasible embodiments, the parallax correction adjustment device 30 includes a left interpupillary distance adjustment module 31 and a right interpupillary distance adjustment module 32; the left liquid mirror of the left interpupillary distance adjustment module 31 constitutes a left viewing adjustment mirror surface disposed between the left light-emitting surface of the optical engine module 200 and the left eye region, and the right liquid mirror of the right interpupillary distance adjustment module 32 constitutes a right viewing adjustment mirror surface disposed between the right light-emitting surface of the optical engine module 200 and the right eye region.

[0070] In this embodiment, the parallax correction adjustment device 30 integrates a left interpupillary distance adjustment module 31 and a right interpupillary distance adjustment module 32. The left liquid mirror of the left interpupillary distance adjustment module 31 is placed between the left light-emitting surface of the optical engine module 200 and the left eye region of the waveguide lens 100 as a left vision adjustment mirror. The right liquid mirror of the right interpupillary distance adjustment module 32 is placed between the right light-emitting surface of the optical engine module 200 and the right eye region of the waveguide lens 100 as a right vision adjustment mirror. That is, the incident angle of the light from the left / right exit pupils projected onto the left / right eye regions can be adjusted in real time through the left / right liquid mirrors, thereby achieving precise adjustment of the interpupillary distance and ensuring that the left / right eyes can receive corrected, parallax-free left / right visual field images, which significantly improves the wearer's visual experience.

[0071] Furthermore, in some other feasible embodiments, reference is made to... Figure 3 , Figure 3 This is a schematic diagram of the interpupillary distance adjustment component Q100 involved in the embodiments of this application. The left interpupillary distance adjustment module 31 and the right interpupillary distance adjustment module 32 are both the same interpupillary distance adjustment component Q100, and the left liquid lens and the right liquid lens are both the same liquid lens Q10. The interpupillary distance adjustment component Q100 includes a magnetic metal strip Q20 and a driving unit Q30. The liquid lens Q10 includes a liquid layer Q12, a top glass Q11 and a bottom cover glass Q13. The liquid layer Q12 is disposed between the top glass Q11 and the bottom cover glass Q13. Magnetic metal strips Q20 are respectively disposed on both sides of the liquid layer Q12. The magnetic metal strips Q20 are fixedly connected to the top glass Q11. At least one set of driving units Q30 is magnetically attracted on the side of the magnetic metal strip Q20 that is not fixedly connected to the top glass Q11.

[0072] In this embodiment, refer to Figure 3The liquid lens Q10 includes a liquid layer Q12, a top glass Q11, and a bottom cover glass Q13. The liquid layer Q12 is disposed between the top glass Q11 and the bottom cover glass Q13, and is fixedly connected to the lower surface of the top glass Q11 and the upper surface of the bottom cover glass Q13. Magnetic metal strips Q20-1 and Q20-2 are respectively disposed on both sides of the liquid layer Q12. Magnetic metal strip Q20-1 is disposed on the right side of the liquid layer Q12 and is fixedly connected to the lower surface of the top glass Q11. Magnetic metal strip Q20-2 is disposed on the left side of the liquid layer Q12 and is fixedly connected to the lower surface of the top glass Q11. The lower surface of the glass Q11 is fixedly connected, and the magnetic metal strips Q20 on both sides of the liquid layer Q12 are magnetically attracted to at least one driving unit Q30. Thus, when the field of view matching result is that the left field of view image and the right field of view image do not match, or when the field of view matching result is that the left / right field of view image and the cross standard template image do not match, each driving unit Q30 can be driven to rotate the top glass Q11 at any spatial angle, thereby changing the thickness and angle of the liquid lens Q10. This can dynamically change the angle of the left / right exit pupil light, thereby achieving the correction of randomly varying binocular parallax.

[0073] It should be noted that the interior of the liquid layer Q12 is filled with a transparent liquid with a certain refractive index. This transparent liquid is wrapped by the outer surface of the liquid layer Q12. The outer surface of the liquid layer Q12 is attached with a light-transmitting film, and the shape of the light-transmitting film is convex, which can realize the thickness change of the liquid lens Q10.

[0074] In a specific embodiment, refer to Figure 3 In this application, a magnetic metal strip Q20-1, which is located on the right side of the liquid layer Q12 and fixedly connected to the lower surface of the top glass Q11, can magnetically attract a driving unit Q30-1; a magnetic metal strip Q20-2, which is located on the left side of the liquid layer Q12 and fixedly connected to the lower surface of the top glass Q11, can magnetically attract driving units Q30-2 and Q30-3, or one of the two driving units Q30 magnetically attracted by the magnetic metal strip Q20-2 can be replaced by a fixed structural member. The above is only one feasible implementation of this application, and this application does not make any limitation.

[0075] In another embodiment, reference Figure 4 , Figure 4This is another schematic diagram of the interpupillary distance adjustment component Q100 involved in the embodiment of this application. The liquid lens Q10 includes a liquid layer Q12, a top glass Q11, and a bottom cover glass Q13. The length of the liquid layer Q12 is equal to the length of the bottom glass, and the length of the liquid layer Q12 is less than the length of the top glass Q11. The liquid layer Q12 is disposed between the top glass Q11 and the bottom cover glass Q13, and is fixedly connected to the lower surface of the top glass Q11 and the upper surface of the bottom cover glass Q13. Specifically, one side of the top glass Q11, one side of the liquid layer Q12, and one side of the bottom cover glass Q13 are stacked in sequence to form the lens fixing side of the liquid lens Q10, which is fixed in the optical engine housing of the optical engine module 200. The portion of the top glass Q11 that exceeds the length of the liquid layer Q12 is fixedly connected to a magnetic metal strip Q20, and the magnetic metal strip Q20 is magnetically attracted to a driving unit Q30.

[0076] In addition, it should be noted that, referring to Figure 5 , Figure 5 This is a schematic diagram of the driving unit Q30 involved in the embodiments of this application. The driving unit Q30 may include a magnetic chuck Q31, a telescopic rod Q32, and a power component Q33. Specifically, the telescopic rod Q32 is disposed between the magnetic chuck Q31 and the power component Q33 to connect the magnetic chuck Q31 and the power component Q33. The side of the magnetic chuck Q31 not connected to the telescopic rod Q32 is in contact with the magnetic metal strip Q20. The side of the power component Q33 not connected to the telescopic rod Q32 is disposed in the optical engine housing of the optical engine module 200. The power component Q33 may be a driving sensor such as a linear motor or a voice coil motor. The magnetic chuck Q31 may be... Figure 5 The magnetic sphere shown can also be made of other shapes of magnetic sheets, and this application makes no restrictions on them.

[0077] Furthermore, in some feasible embodiments, the beam splitting assembly 20 includes a beam splitting prism 21. The beam splitting surface of the beam splitting prism 21 forms the beam splitting mirror surface of the beam splitting assembly 20, which is disposed facing the light source 10. The total reflection surface of the beam splitting prism 21 forms the total reflection mirror surface of the beam splitting assembly 20, which is disposed on the opposite side of the beam splitting mirror surface. A polarizing beam splitting film PBS1 is attached to the beam splitting mirror surface, and an anti-reflection film is coated on the total reflection mirror surface. The beam splitting prism 21 is configured to split the light source 10 into a first polarized light S and a second polarized light P that are perpendicular to each other through the beam splitting mirror surface. When the first polarized light S is projected onto the left reflecting mirror surface of the beam splitting assembly 20 through the beam splitting mirror surface, the second polarized light P projected by the beam splitting mirror surface is reflected onto the right reflecting mirror surface of the beam splitting assembly 20 through the total reflection mirror surface.

[0078] In this embodiment, reference is made to... Figures 6 to 7The beam-splitting surface of the beam-splitting prism 21 forms the beam-splitting mirror surface of the beam-splitting assembly 20, which is positioned facing the light source 10. A projection optics 60 is disposed between the light source 10 and the beam-splitting surface of the beam-splitting prism 21. For example, unpolarized light from the light source 10 is projected onto the beam-splitting surface of the beam-splitting prism 21 through the projection optics 60. The polarization beam-splitting film PBS1 attached to the beam-splitting surface of the beam-splitting prism 21 splits the unpolarized light projected by the projection optics 60 into a first polarized light S and a second polarized light P that are perpendicular to each other. That is, the polarization separation of unpolarized light is achieved through the beam-splitting surface of the beam-splitting prism 21, thereby enabling the visual display needs of both eyes to be met using only one light source 10. This avoids the technical problem of high power consumption in smart glasses caused by the traditional dual-optical-engine module 200 configuration, significantly reducing the power consumption of smart glasses, thereby reducing the dependence on large-capacity batteries, further reducing the overall weight of smart glasses, and thus significantly improving the user's wearing experience. Next, when the first polarized light S is projected onto the left reflecting mirror of the beam splitter 20 through the beam splitter prism 21, the second polarized light P passes through the beam splitter and the polarizing beam splitting film PBS1 and is projected onto the total internal reflection mirror of the beam splitter 20. The anti-reflection film coated on the total internal reflection mirror improves the reflection efficiency of the second polarized light P on the total internal reflection mirror, so that more of the second polarized light P is reflected to the right reflecting mirror of the beam splitter 20, effectively reducing the light loss of the reflected second polarized light P and significantly improving the light transmission efficiency of the second polarized light P.

[0079] It should be noted that the total reflection mirror can be understood as the total reflection surface of the beam splitter prism 21. This total reflection surface is set on the opposite side of the beam splitter surface, thereby effectively optimizing the light propagation path of the second polarized light P through the polarization beam splitter film PBS1 on the beam splitter surface to the total reflection surface, and reducing the light loss of the second polarized light P during the light transmission process.

[0080] The polarizing beam splitter PBS1 is a type of PBS (Polarizing Beam Splitter) film. When unpolarized light is incident on the PBS film, it is split into two perpendicular beams: a first polarized beam S (also known as S-state polarized light) and a second polarized beam P (also known as P-state polarized light). The first polarized beam S is reflected by the PBS film, while the second polarized beam P passes through the PBS film.

[0081] The beam splitter 21 can be... Figure 8 (a) shows a rhomboid prism formed by gluing the right-angled side of the first triangular prism J1 to the right-angled side of the second triangular prism J2. The hypotenuse of the first triangular prism J1 and the hypotenuse of the second triangular prism J2 are arranged opposite to each other. The hypotenuse of the first triangular prism J1 constitutes the beam-splitting surface of the beam-splitting prism 21, and the hypotenuse of the second triangular prism J2 constitutes the total internal reflection surface of the beam-splitting prism 21.

[0082] Spectrometer 21 can also be Figure 8 (b) shows a parallelogram prism, wherein the side of the parallelogram prism facing the light source 10 constitutes the beam-splitting surface of the beam-splitting prism 21, and the side of the parallelogram prism away from the light source 10 constitutes the total reflection surface of the beam-splitting prism 21.

[0083] Furthermore, in some other feasible embodiments, reference is made to... Figures 6 to 7 The optomechanical module 200 includes a left reflector 40 and a right reflector 50, and the beam splitter 20 also includes a reflecting prism 22. The reflecting prism 22 is disposed between the left reflector 40 and the right reflector 50. The left reflecting surface of the reflecting prism 22 forms the left reflecting mirror surface of the beam splitter 20 facing the beam splitter surface of the beam splitter 20, and the right reflecting surface of the reflecting prism 22 forms the right reflecting mirror surface of the beam splitter 20 facing the total internal reflection mirror surface of the beam splitter 20. The reflecting prism 22 is configured to project the second polarized light P onto the right reflector 50 through the right reflecting mirror surface when the first polarized light S is projected onto the left reflector 40 through the left reflecting mirror surface.

[0084] In this embodiment, refer to Figures 6 to 7 In this application, a reflecting prism 22 is further provided in the beam splitter assembly 20. The reflecting prism 22 is disposed above the beam splitter prism 21 and between the left reflector 40 and the right reflector 50. Specifically, the left reflecting surface of the reflecting prism 22 forms a beam splitter prism 20 with the left reflecting mirror surface facing the beam splitter prism 20, thereby accurately reflecting the first polarized light S projected by the beam splitter prism surface to the left reflector 40 which faces the left reflecting mirror surface; the right reflecting surface of the reflecting prism 22 forms a beam splitter prism 20 with the right reflecting mirror surface facing the total internal reflection mirror surface, thereby accurately reflecting the second polarized light P projected by the total internal reflection mirror surface to the right reflector 50 which faces the right reflecting mirror surface. In other words, this application places the reflecting prism 22 above the beam splitter prism 21 and between the left reflector 40 and the right reflector 50; the left and right reflecting surfaces of the reflecting prism 22 reflect the first and second polarized light into the left and right reflectors 50 respectively, which significantly optimizes the light transmission path and effectively improves the utilization rate and transmission efficiency of the first and second polarized light.

[0085] Further, in some feasible embodiments, the left reflector 40 includes a left relay lens 410, a left polarizing beam splitter 420, a left lens 430, a left modulation screen 440, and a left exit pupil lens 450; the left polarizing beam splitter 420 is disposed between the left relay lens 410 and the left lens 430, the left relay lens 410 is disposed facing the left reflective mirror surface of the beam splitter assembly 20, the left modulation screen 440 is disposed on the side of the left lens 430 away from the left polarizing beam splitter 420, and the side of the left exit pupil lens 450 facing the left viewing adjustment mirror surface constitutes the left light-emitting surface of the optomechanical module 200; the left polarizing beam splitter 42 ...40, and the side of the left exit pupil lens 450 facing the left viewing adjustment mirror surface constitutes the left light-emitting surface of the optomechanical module 200; the left The beam splitter 420 is provided with a phase conversion surface and a left beam splitter surface; the phase conversion surface is configured to convert the first polarized light S, which is converged by the left relay lens 410, into the second polarized light P, and then project it through the left lens 430 onto the left modulation screen 440 to form a left visual field image, and a phase conversion film HWP1 is attached to the phase conversion surface; the left beam splitter surface is configured to transmit the left visual field image projected by the left modulation screen 440 through the left exit pupil lens 450 to the left eye area facing the left viewing adjustment mirror and transmit it to the image detection module 300, and a polarization beam splitter film PBS1 is attached to the left beam splitter surface.

[0086] It should be noted that, referring to Figure 9 The left polarizing beam splitter 420 can be Figure 9 (a) shows the left PBS prism, in which... Figure 9 (a) The side of the left PBS prism facing the left lens 430 is set as the left beam splitting surface of the left polarizing beam splitter 420, and the polarizing beam splitting film PBS1 is attached to the left beam splitting surface. Figure 9 (b) The side of the left PBS prism facing the left relay lens 410 is set as the phase conversion surface of the left polarizing beam splitter 420, and a phase conversion film HWP1 is attached to the phase conversion surface; wherein, the phase conversion film HWP1 is an HWP (half-wave plate) film, which causes the phase of the light perpendicular to the HWP film to be delayed by π / 2 or an odd multiple thereof.

[0087] The left polarizing beam splitter 420 can also be integrated with Figure 9(b) shows the left PBS assembly of the first polarizing beam splitter L1, the second polarizing beam splitter L2, and the left reflector L3. For example, a polarizing beam splitting film PBS1 is fixedly connected between the inclined side of the first polarizing beam splitter L1 and the inclined side of the second polarizing beam splitter L2 to form the left beam splitting surface of the left polarizing beam splitter 420. A phase conversion film HWP1 is attached to the side of the first polarizing beam splitter L1 facing the left relay lens 410, forming the phase conversion surface of the left polarizing beam splitter 420. A phase retardation film QWP1 is attached to the side of the second polarizing beam splitter L2 facing the left reflector L3, forming the phase retardation surface of the left polarizing beam splitter 420. The phase retardation film QWP1 is a QWP (Quarter Wave Plate) film, which delays the phase of light perpendicular to the QWP film by π / 4. Both the first polarizing beam splitter L1 and the second polarizing beam splitter L2 are PBS prisms.

[0088] In a specific embodiment, refer to Figure 6 and combined Figure 9 (a) As shown in the diagram, the first polarized light S is reflected by the polarizing film PBS1 attached to the beam-splitting surface of the beam-splitting prism 21 onto the left reflecting surface of the reflecting prism 22. After secondary reflection by the left reflecting surface, it enters the left relay lens 410 for focusing. The focused first polarized light S is then projected onto the HWP film of the left PBS prism through the left relay lens 410. The first polarized light S undergoes phase conversion by the HWP film and becomes the second polarized light P, which enters the left PBS prism. After passing through the left PBS prism, it enters the left lens 430, is focused by the left lens 430, and is projected onto the left modulation screen 440. The second polarized light P passes through the left modulation screen... After being modulated into a left visual field image (i.e., the first polarized light S carrying image information), the image is projected onto the polarization beam splitter PBS1 of the left PBS prism via the left lens 430. The left visual field image is reflected by the polarization beam splitter PBS1 of the left PBS prism, converged by the left exit pupil lens 450, and then projected onto the left coupling region 11 of the waveguide lens 100 through the left viewing adjustment mirror, thereby reducing unnecessary light loss and significantly enhancing the clarity of light imaging. Next, when the left visual field image is introduced into the user's left eye through the left coupling region 13 of the waveguide lens 100, it is simultaneously captured by the image detection module 300 through the image detection region 15 of the waveguide lens 100.

[0089] In another embodiment, reference Figure 7 and combined Figure 9(b) As shown in the left PBS assembly, the first polarized light S is reflected by the polarizing film PBS1 attached to the beam-splitting surface of the beam-splitting prism 21 to the left reflecting surface of the reflecting prism 22. After secondary reflection by the left reflecting surface, it enters the left relay lens 410 for focusing. The focused first polarized light S is then projected onto the HWP film of the left PBS assembly through the left relay lens 410. The first polarized light S undergoes phase conversion by the HWP film to become the second polarized light P, which passes sequentially through the first polarizing beam-splitting prism L1, the PBS film, and the second polarizing beam-splitting prism L2 before exiting the left PBS assembly and entering the left lens 430. After being focused by the left lens 430, it is projected onto the left modulation screen 440. The second polarized light P is modulated by the left modulation screen 440 into a left field-of-view image (i.e., the first polarized light S carrying image information), and then re-enters the left lens 430, passing through the left lens 430 and entering the second polarized beam-splitting film of the left PBS assembly. The light prism L2 projects onto the PBS film. The first polarized light S, carrying image information, is reflected and deflected by the PBS film onto the QWP film. After a phase delay of 1 / 4 wavelength, it reaches the surface of the left reflector L3. After being reflected by the left reflector L3, it passes through the QWP film again and is delayed by another 1 / 4 wavelength. At this time, the first polarized light S carrying image information becomes the second polarized light P carrying image information. After passing through the PBS film and exiting the left PBS component, it is incident on the left exit pupil lens 450. The second polarized light P, which is converged by the left exit pupil lens 450, can be projected more accurately onto the left coupling region 11 of the waveguide lens 100, thereby reducing unnecessary light loss and significantly enhancing the clarity of the light image. Next, when the second polarized light P carrying image information enters the user's left eye through the left coupling region 13 of the waveguide lens 100, it simultaneously passes through the image detection region 15 of the waveguide lens 100 and is captured by the image detection module 300.

[0090] It should be noted that, referring to Figures 6 to 7 as well as Figure 10 , Figure 10 This is a schematic diagram of the waveguide lens 100 according to the first embodiment of this application. The waveguide lens 100 can be... Figure 10 The waveguide sheet shown is a single piece of waveguide material. The waveguide mirror 100 is provided with a left coupling-in region 11, a left coupling-out region 13, a right coupling-in region 12, a right coupling-out region 14, and an image detection region 15; wherein, Figure 11 The left light-transmitting hole 41 on the eyeglass holder 400 shown is positioned facing the left coupling area 11. Figure 11 The right light-transmitting hole 42 on the eyeglass holder 400 shown is positioned facing the right coupling area 12. Figure 11 The image detection hole 43 on the eyeglass holder 400 shown is oriented toward the image detection area 15. In addition, hinge holes 45 are provided on the left and right sides of the eyeglass holder 400. The hinge holes 45 are hinged to the left and right temples 700 of the smart glasses through the pins 46 of the temples 700. The eyeglass holder 400 is also provided with nose pad holes 44 for fastening the nose pads 600 of the smart glasses.

[0091] Furthermore, in some other feasible embodiments, the right reflector 50 includes a right relay lens 51, a right polarizing beam splitter 52, a right lens 53, a right modulation screen 54, and a right exit pupil lens 55; the right polarizing beam splitter 52 is disposed between the right relay lens 51 and the right lens 53, the right relay lens 51 is disposed facing the right reflective mirror surface of the beam splitter assembly 20, the right modulation screen 54 is disposed on the side of the right lens 53 away from the right polarizing beam splitter 52, and the side of the right exit pupil lens 55 facing the right viewing adjustment mirror surface constitutes the right light-emitting surface of the optomechanical module 200. The second polarized light P is projected onto the right relay lens 51 through the right reflecting mirror and then converged. The converged second polarized light P is then projected onto the right modulation screen 54 in the direction of light propagation from the right polarizing beam splitter 52 to the right lens 53 to form a right field of view image. The right beam splitter 52 is configured to transmit the right field of view image projected from the right modulation screen 54 through the right lens 53 to the right eye region facing the right eye adjustment mirror via the right exit pupil lens 55 and then to the image detection module 300. A polarizing beam splitter film PBS1 is attached to the right beam splitter.

[0092] It should be noted that, referring to Figure 12 The left polarizing beam splitter 420 can be Figure 12 (a) shows the right PBS prism, in which... Figure 12 (a) The side of the right PBS prism facing the right lens 53 is set as the right beam splitter surface of the right polarizing beam splitter 52, and a polarizing beam splitter film PBS1 is attached to the right beam splitter surface.

[0093] The right-polarizing beam splitter 52 can also be integrated with Figure 12 (b) shows the right PBS assembly of the third polarizing beam splitter R1, the fourth polarizing beam splitter R2, and the right reflector R3. For example, a polarizing beam splitting film PBS1 is fixedly connected between the inclined side of the third polarizing beam splitter R1 and the inclined side of the fourth polarizing beam splitter R2 to form the right beam splitting surface of the right polarizing beam splitter 52. A phase retardation film QWP1 is attached to the side of the fourth polarizing beam splitter R2 facing the right reflector R3 to form the phase retardation surface of the right polarizing beam splitter 52.

[0094] In a specific embodiment, refer to Figure 6 and combined Figure 12(a) As shown in the diagram, the second polarized light P is reflected by the polarizing film PBS1 attached to the beam-splitting surface of the beam-splitting prism 21 onto the right reflecting surface of the reflecting prism 22. After secondary reflection by the right reflecting surface, it enters the right relay lens 51 for focusing. The focused second polarized light P is then projected onto the right PBS prism through the right relay lens 51. After passing through the right PBS prism, the second polarized light P enters the right lens 53. After being focused by the right lens 53, it is projected onto the right modulation screen 54. The second polarized light P is modulated by the right modulation screen 54 into a right field-of-view image (i.e., the first image carrying image information). After being polarized (S), the light is projected onto the polarizing beam splitter PBS1 of the right PBS prism via the right lens 53. The right field-of-view image is reflected by the polarizing beam splitter PBS1 of the right PBS prism, converged by the right exit pupil lens 55, and then projected onto the right coupling zone 12 of the waveguide lens 100 through the right viewing adjustment mirror, thereby reducing unnecessary light loss and significantly enhancing the clarity of the light image. Next, when the right field-of-view image is entered into the user's right eye through the right coupling zone 14 of the waveguide lens 100, it is simultaneously captured by the image detection module 300 through the image detection zone 15 of the waveguide lens 100.

[0095] In another embodiment, reference Figure 6 and combined Figure 12 (b) As shown in the right PBS assembly, the second polarized light P is reflected by the polarizing beam splitter PBS1 attached to the beam splitter surface of the beam splitter prism 21 to the right reflecting surface of the reflecting prism 22. After secondary reflection by the right reflecting surface, it enters the right relay lens 51 for focusing. The focused second polarized light P is then projected onto the right PBS assembly through the right relay lens 51, passes sequentially through the third polarizing beam splitter R1, the PBS film, and the fourth polarizing beam splitter R2, and exits the right PBS assembly into the right lens 53. After being focused by the right lens 53, it is projected onto the right modulation screen 54. The second polarized light P is modulated by the right modulation screen 54 into a right field-of-view image (i.e., the first polarized light S carrying image information), and then re-enters the right lens 53. After passing through the right lens 53, it enters the fourth polarizing beam splitter R2 of the right PBS assembly and is projected onto the PBS film, carrying... The first polarized light S carrying image information is reflected and deflected by the PBS film and projected onto the QWP film. After a phase delay of 1 / 4 wavelength, it reaches the surface of the right reflector R3. After being reflected by the right reflector R3, it passes through the QWP film again and is delayed by another 1 / 4 wavelength. At this time, the first polarized light S carrying image information becomes the second polarized light P carrying image information. After passing through the PBS film and exiting the right PBS component, it is incident on the right exit pupil lens 55. After being converged by the right exit pupil lens 55, it passes through the right viewing adjustment mirror and is projected onto the right coupling area 12 of the waveguide lens 100, thereby reducing unnecessary light loss and significantly enhancing the clarity of the light image. Next, when the second polarized light P carrying image information enters the user's right eye through the right coupling area 14 of the waveguide lens 100, it simultaneously passes through the image detection area 15 of the waveguide lens 100 and is captured by the image detection module 300.

[0096] Furthermore, in some feasible embodiments, reference is made to Figures 6 to 7 The optical engine module 200 also includes a projection optics 60, which is disposed between the light source 10 and the beam splitting assembly 20. The projection optics 60 includes a collimating lens 61, a homogenizing lens 62 and a relay lens 63. The homogenizing lens 62 is disposed between the collimating lens 61 and the relay lens 63. The collimating lens 61 is oriented towards the light source 10, and the relay lens 63 is oriented towards the beam splitting mirror of the beam splitting assembly 20.

[0097] In this embodiment, the unpolarized light (i.e., incident light) from the light source 10 is converged by the collimating lens 61 and then projected onto the homogenizing lens 62, thereby making the converged incident light more uniformly projected onto the third relay lens 63 for convergence, so as to form a light spot of appropriate size and project it onto the beam splitter of the beam splitter assembly 20, thereby providing the beam splitter with a high-quality light source 10 input, significantly improving the beam splitting efficiency of the beam splitter.

[0098] In another embodiment, reference Figure 13 , Figure 13 This is a schematic diagram of the smart glasses structure according to the first embodiment of this application. The smart glasses also include a glasses frame 400, temple pins 46, glasses housing 500, nose pads 600, and temples 700. The glasses frame 400 is provided with a left light-passing hole 41, a right light-passing hole 42, an image detection hole 43, a nose pad fixing hole, a hinge hole 45, and a field of view area for fixing the waveguide lens 100. For example, the waveguide lens 100 is disposed between the glasses frame 400 and the glasses housing 500 and is fixed to the field of view area on the glasses frame 400. An optical engine module 200 and an image detection module 300 (e.g., a camera module) are disposed on the side of the waveguide lens 100 away from the glasses housing 500. The image detection module 300 is disposed facing the image detection hole 43. The left light-emitting part of the optical engine module 200 is... The aperture is aligned with the left light-passing aperture 41 of the eyeglass frame 400, and the right light-exiting aperture of the optical engine module 200 is aligned with the right light-passing aperture 42 of the eyeglass frame 400. The left exit pupil lens 450 of the left polarizing beam splitter in the optical engine module 200 is set towards the left light-exiting aperture of the optical engine module 200, and the right exit pupil lens 55 of the right polarizing beam splitter in the optical engine module 200 is set towards the right light-exiting aperture of the optical engine module 200. In addition, after the nose pad positioning hole on the nose pad 600 is aligned with the nose pad fixing hole 45, the nose pad fastener passes through the nose pad fixing hole aligned with the nose pad positioning hole and is fixed to the eyeglass frame 400. The left and right temples 700 are hinged to each other by the pins 46 on the left and right sides of the eyeglass frame 400 passing through the corresponding hinge holes 45.

[0099] In summary, this application provides a smart glasses and a parallax correction method thereof, as well as an extended reality device. The smart glasses integrate a waveguide lens 100, an optomechanical module 200, and an image detection module 300. By setting a beam splitter 20 and a parallax correction adjustment component 30 in the optomechanical module 200 of a single light source 10, the wearer's visual experience is significantly improved by effectively suppressing parallax phenomena caused by physical impact while ensuring low power consumption of the smart glasses. Specifically, the beam splitter 20 is configured to precisely split the light emitted from the light source 10 into a first polarized light S and a second polarized light P. The first polarized light S and the second polarized light P pass through the left and right viewing adjustment mirrors of the parallax correction adjustment element 30, respectively, and are projected onto the left and right eye regions of the waveguide lens 100, forming clear left and right visual field images. This allows the visual display needs of both eyes to be met using only one light source 10, avoiding the technical problem of high power consumption in smart glasses caused by the traditional dual-optical-mechanical module 200 configuration. In other words, this application significantly reduces the power consumption of smart glasses by splitting the light from a single light source 10 using the beam splitter 20. Next, the image detection module... The device 300 receives the left and right visual field images projected by the waveguide lens 100 and detects the matching result between the left and right visual field images in real time. Once it detects that the matching result is that the left and right visual field images do not match, that is, there is a parallax phenomenon between the left and right visual field images, it will immediately trigger the parallax correction adjustment component 30 to adjust the left and right adjustment mirrors until the left visual field image formed by the left adjustment mirror projected onto the left eye area matches the right visual field image formed by the right adjustment mirror projected onto the right eye area. This effectively eliminates visual discomfort caused by physical impact or other factors and significantly improves the wearer's visual experience.

[0100] Furthermore, based on the first embodiment of the smart glasses of this application, a second embodiment of the parallax correction method for the smart glasses of this application is proposed, referring to... Figure 14 , Figure 14 This is a schematic flowchart of the second embodiment of the parallax correction method for smart glasses in this application.

[0101] The parallax correction method for smart glasses of this application is applied to any of the smart glasses mentioned above. The parallax correction method for smart glasses of this application includes the following implementation steps S10 to S30.

[0102] Step S10: The light source is split into first polarized light and second polarized light by the beam splitting component.

[0103] In this embodiment, the beam splitter splits the unpolarized light from the light source into a first polarized light and a second polarized light that are perpendicular to each other. That is, the beam splitter achieves polarization separation of the unpolarized light, thereby enabling the visual display needs of both eyes to be met using only one light source. This avoids the technical problem of high power consumption in smart glasses caused by traditional dual-optical-engine module configurations, significantly reducing the power consumption of smart glasses, thereby reducing the dependence on large-capacity batteries, further reducing the overall weight of smart glasses, and thus significantly improving the user's wearing experience.

[0104] Step S20: The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment device to form a left visual field image, and the second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment device to form a right visual field image.

[0105] In this embodiment, the left-view adjustment mirror of the parallax correction adjustment device accurately projects the first polarized light onto the left eye region of the waveguide lens, thereby constructing a clear and stereoscopic left visual field image in front of the user's left eye. Simultaneously, the right-view adjustment mirror of the parallax correction adjustment device is responsible for accurately projecting the second polarized light onto the right eye region of the waveguide lens to form a right visual field image.

[0106] Step S30: After receiving the left field-of-view image and the right field-of-view image projected by the waveguide lens through the image detection module, the field-of-view matching result is determined based on the left field-of-view image and the right field-of-view image. In response to the mismatch between the left field-of-view image and the right field-of-view image, the parallax correction adjustment device is triggered to adjust the left and right field-of-view adjustment mirrors until the left field-of-view image matches the right field-of-view image.

[0107] In this embodiment, the left and right field-of-view images formed by the waveguide lens are coupled to the image detection module. At this time, after receiving the left and right field-of-view images coupled from the waveguide lens, the image detection module constructs a model based on the center and four corner edges of the left field-of-view image. Figure 2 (a) shows the left crosshair template image, constructed using the center and four corner edges of the right field of view image. Figure 2(b) shows the right cross template image; next, it is determined whether the left cross template image completely overlaps with the right cross template image. If the left cross template image does not completely overlap with the right cross template image, the visual field matching result is determined to be that the left visual field image and the right visual field image do not match. In response to the visual field matching result that the left visual field image and the right visual field image do not match, the parallax correction adjustment device is triggered to adjust its right visual adjustment mirror with the left visual field image as the reference optical image. This causes the incident angle of the right exit pupil light formed by the second polarized light passing through the right visual adjustment mirror to be deflected when it is projected onto the right eye area. This continues until the right visual field image coupled out by the waveguide lens after the deflection is completely superimposed with the left visual field image. This achieves binocular parallax correction of smart glasses, effectively eliminating visual discomfort caused by physical impact or other factors, and significantly improving the wearer's visual experience.

[0108] Furthermore, this application also provides an extended reality device, which includes a memory, a processor, and a disparity correction program for smart glasses stored in the memory and executable on the processor. When executed by the processor, the disparity correction program for smart glasses implements the steps of the aforementioned disparity correction method for smart glasses. Please refer to... Figure 15 , Figure 15 This is a schematic diagram of the extended reality device involved in the embodiments of this application. Specifically, the extended reality device in the embodiments of this application may be a device for locally running a parallax correction method for smart glasses.

[0109] like Figure 15 As shown, the extended reality device in this application embodiment may include: smart glasses, a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0110] Memory 1005 is disposed on the main body of the extended reality device. Memory 1005 stores a program that performs corresponding operations when executed by processor 1001. Memory 1005 is also used to store parameters used by the extended reality device. Memory 1005 can be high-speed RAM or stable memory (non-volatile memory), such as disk storage. Optionally, memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0111] Those skilled in the art will understand that Figure 15 The extended reality device structure shown does not constitute a limitation on the extended reality device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0112] like Figure 15 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a parallax correction program for smart glasses.

[0113] exist Figure 15 In the extended reality device shown, the processor 1001 can be used to call the parallax correction program for smart glasses stored in the memory 1005 and execute the steps of the parallax correction method for smart glasses as described above.

[0114] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0115] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0116] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause an extended reality device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0117] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A type of smart glasses, characterized in that, The smart glasses include waveguide lenses, an optomechanical module, and an image detection module. The optomechanical module includes a light source, a beam splitter, and a parallax correction adjustment component. The beam splitting component is configured to split the light source into a first polarized light and a second polarized light. The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment component to form a left visual field image, which is then projected onto the image detection module. The second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment component to form a right visual field image, which is then projected onto the image detection module. The image detection module is configured to construct a left cross template image using the center and four corner edges of the left visual field image, and a right cross template image using the center and four corner edges of the right visual field image. If the left cross template image does not completely overlap with the right cross template image, the parallax correction adjustment component is triggered to adjust the right viewing adjustment mirror using the left visual field image as a reference image. This causes the incident angle of the right exit pupil ray formed by the second polarized light after passing through the adjusted right viewing adjustment mirror to be deflected until the right visual field image coupled out by the waveguide lens after the deflection completely overlaps with the left visual field image. The optomechanical module includes a left reflector and a right reflector. The beam-splitting assembly includes a beam-splitting prism and a reflecting prism. The reflecting prism is positioned above the beam-splitting prism and between the left and right reflectors. The left reflector is located on the side of the left viewing adjustment mirror away from the image detection module, and the right reflector is located on the side of the right viewing adjustment mirror away from the image detection module. The left reflector is a polarizing beam splitter with a half-wave plate attached. The beam splitter is a rhomboid prism formed by gluing the right-angled side of a first triangular prism to the right-angled side of a second triangular prism. The hypotenuses of the first and second triangular prisms are arranged opposite each other. The hypotenuse of the first triangular prism forms the beam splitting surface of the beam splitter, and the hypotenuse of the second triangular prism forms the total internal reflection surface of the beam splitter.

2. The smart glasses as described in claim 1, characterized in that, The parallax correction adjustment device includes a left pupil distance adjustment module and a right pupil distance adjustment module; The left liquid mirror of the left interpupillary distance adjustment module constitutes the left viewing adjustment mirror surface, which is disposed between the left light-emitting surface of the optical engine module and the left eye region. The right liquid mirror of the right interpupillary distance adjustment module constitutes the right viewing adjustment mirror surface, which is disposed between the right light-emitting surface of the optical engine module and the right eye region.

3. The smart glasses as described in claim 2, characterized in that, The left pupil distance adjustment module and the right pupil distance adjustment module are the same pupil distance adjustment components, and the left liquid lens and the right liquid lens are the same liquid lens. The interpupillary distance adjustment device includes a magnetic metal strip and a drive unit. The liquid lens includes a liquid layer, a top glass and a bottom glass. The liquid layer is disposed between the top glass and the bottom glass. The magnetic metal strip is disposed on both sides of the liquid layer. The magnetic metal strip is fixedly connected to the top glass. At least one set of the drive unit is magnetically attracted on the side of the magnetic metal strip that is not fixedly connected to the top glass.

4. The smart glasses as described in claim 1, characterized in that, The beam splitter is configured to split the light source into a first polarized light and a second polarized light that are perpendicular to each other through the beam splitting surface of the beam splitter. When the first polarized light is projected onto the left reflecting mirror of the beam splitter through the beam splitting surface, the second polarized light projected by the beam splitting surface is reflected onto the right reflecting mirror of the beam splitter through the total internal reflection surface of the beam splitter.

5. The smart glasses as described in claim 1, characterized in that, The left reflecting surface of the reflecting prism forms the beam-splitting surface of the beam-splitting assembly, which faces the left reflecting mirror surface of the beam-splitting assembly; the right reflecting surface of the reflecting prism forms the total internal reflection surface of the beam-splitting assembly, which faces the right reflecting mirror surface of the beam-splitting assembly. The reflecting prism is configured to project the second polarized light onto the right reflector through the right reflecting mirror while the first polarized light is projected onto the left reflector through the left reflecting mirror.

6. The smart glasses according to claim 5, characterized in that, The left reflector includes a left relay lens, a left polarizing beam splitter, a left lens, a left modulation screen, and a left exit pupil lens; The left polarizing beam splitter is disposed between the left relay lens and the left lens. The left relay lens is disposed facing the left reflective mirror of the beam splitter assembly. The left modulation screen is disposed on the side of the left lens away from the left polarizing beam splitter. The side of the left exit pupil lens facing the left viewing adjustment mirror constitutes the left light-emitting surface of the optomechanical module. The left polarization beam splitter is provided with a phase conversion surface and a left beam splitting surface; The phase conversion surface is configured to convert the first polarized light, which is converged by the left relay lens, into the second polarized light, and then project it through the left lens onto the left modulation screen to form the left field of view image. A phase conversion film is attached to the phase conversion surface. The left beam splitter is configured to transmit the left visual field image projected by the left modulation screen through the left exit pupil lens to the left eye region facing the left vision adjustment mirror and then to the image detection module. A polarizing beam splitter film is attached to the left beam splitter.

7. The smart glasses according to claim 5, characterized in that, The right reflector includes a right relay lens, a right polarizing beam splitter, a right lens, a right modulation screen, and a right exit pupil lens; The right polarizing beam splitter is disposed between the right relay lens and the right lens. The right relay lens is disposed facing the right reflecting mirror of the beam splitter assembly. The right modulation screen is disposed on the side of the right lens away from the right polarizing beam splitter. The side of the right exit pupil lens facing the right viewing adjustment mirror constitutes the right light-emitting surface of the optomechanical module. The second polarized light is projected onto the right relay lens through the right reflecting mirror and then converged. The converged second polarized light is then projected onto the right modulation screen according to the light propagation direction from the right polarizing beam splitter to the right lens to form the right field of view image. The right beam splitter is configured to transmit the right visual field image projected by the right modulation screen through the right lens to the right eye region facing the right eye region via the right exit pupil lens and then to the image detection module. A polarizing beam splitter film is attached to the right beam splitter.

8. The smart glasses as described in claim 1, characterized in that, The optomechanical module also includes a projection optics component, which is disposed between the light source and the beam splitting component; The projection optics include a collimating lens, a homogenizing lens, and a relay lens. The homogenizing lens is disposed between the collimating lens and the relay lens. The collimating lens is oriented towards the light source, and the relay lens is oriented towards the beam-splitting surface of the beam-splitting prism.

9. A method for parallax correction in smart glasses, characterized in that, The parallax correction method for the smart glasses is applied to the smart glasses according to any one of claims 1 to 7, wherein the parallax correction method for the smart glasses includes: The light source is split into first polarized light and second polarized light by a beam splitter; The first polarized light is projected onto the left eye region of the waveguide lens through the left viewing adjustment mirror of the parallax correction adjustment device to form a left visual field image, and the second polarized light is projected onto the right eye region of the waveguide lens through the right viewing adjustment mirror of the parallax correction adjustment device to form a right visual field image. After receiving the left and right visual field images projected by the waveguide lens through the image detection module, a left crosshair template image is constructed using the center and four corner edges of the left visual field image, and a right crosshair template image is constructed using the center and four corner edges of the right visual field image. If the left crosshair template image does not completely overlap with the right crosshair template image, the parallax correction adjustment component is triggered to adjust the right viewing adjustment mirror using the left visual field image as a reference image. This causes the incident angle of the right exit pupil ray formed by the second polarized light after passing through the adjusted right viewing adjustment mirror to be deflected when projected onto the right eye region, until the right visual field image coupled through the waveguide lens after the deflection completely overlaps with the left visual field image. The optomechanical module includes a left reflector and a right reflector. The beam-splitting assembly includes a beam-splitting prism and a reflecting prism. The reflecting prism is positioned above the beam-splitting prism and between the left and right reflectors. The left reflector is located on the side of the left viewing adjustment mirror away from the image detection module, and the right reflector is located on the side of the right viewing adjustment mirror away from the image detection module. The left reflector is a polarizing beam splitter with a half-wave plate attached. The beam splitter is a rhomboid prism formed by gluing the right-angled side of a first triangular prism to the right-angled side of a second triangular prism. The hypotenuses of the first and second triangular prisms are arranged opposite each other. The hypotenuse of the first triangular prism forms the beam splitting surface of the beam splitter, and the hypotenuse of the second triangular prism forms the total internal reflection surface of the beam splitter.

10. An extended reality device, characterized in that, The extended reality device includes the smart glasses according to any one of claims 1 to 8; or... The extended reality device includes a processor, a memory, and a parallax correction program for smart glasses stored in the memory and executable by the processor, wherein when the parallax correction program for smart glasses is executed by the processor, it implements the steps of the parallax correction method for smart glasses as described in claim 9.

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