CN119200226A - Augmented reality device - Google Patents

Abstract

The application provides augmented reality equipment, which comprises an optical waveguide, a projection optical machine and an adjusting mechanism, wherein the optical waveguide is used for transmitting an optical signal injected into the optical waveguide and coupling the optical signal out to form image information, the projection optical machine is used for projecting the optical signal towards the optical waveguide, and the adjusting mechanism is used for adjusting an included angle between the optical waveguide and the projection optical machine so as to adjust the image combining distance of the augmented reality equipment. The augmented reality equipment provided by the application can change the image combining distance so that the augmented reality equipment can be used for different application scenes, and the use comfort is improved.

Description

Augmented reality device

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to augmented reality equipment.

Background

Augmented reality (Augmented Reality, AR) is a technique that calculates the position and angle of a camera image in real time and adds a corresponding image, realizing real-time superposition of a real environment and a virtual object to the same picture or space. The needs of the AR glasses with binocular display are combined, normal use of the AR glasses can be guaranteed, the combined image distance of the AR glasses is fixed at present, adjustment cannot be carried out according to the needs, and the AR glasses cannot adapt to different application scenes.

Disclosure of Invention

In view of the above, the present application provides an augmented reality device capable of adjusting a combined image distance to match different application scenarios.

The application provides augmented reality equipment, which comprises an optical waveguide, a projection optical machine and an adjusting mechanism, wherein the optical waveguide is used for transmitting an optical signal injected into the optical waveguide and coupling the optical signal out to form image information, the projection optical machine is used for projecting the optical signal towards the optical waveguide, and the adjusting mechanism is used for adjusting an included angle between the optical waveguide and the projection optical machine so as to adjust the image combining distance of the augmented reality equipment.

According to the augmented reality equipment provided by the application, the adjusting mechanism can adjust the included angle between the optical waveguide and the projection optical machine, so that the emergence angle of the optical signal on the optical waveguide is changed, the image combining distance is changed, the augmented reality equipment can be used for different application scenes, the use comfort is improved, and the use of the augmented reality equipment is facilitated.

Drawings

In order to more clearly explain the technical solutions in the embodiments of the present application, the drawings that are used in the embodiments of the present application will be described below.

Fig. 1 is a schematic structural diagram of an augmented reality device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an augmented reality device according to another embodiment of the present application.

Fig. 3 is an exploded view of the augmented reality device of fig. 1 according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of an optical waveguide according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of the optical waveguide shown in fig. 4 in the A-A direction.

Fig. 6 is a schematic cross-sectional view of an augmented reality device according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of an adjusting mechanism according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of an adjusting mechanism and a projection light machine according to an embodiment of the application.

Fig. 9 is an exploded view of the adjusting mechanism and the projection light machine in fig. 8.

Fig. 10 is an exploded view of the augmented reality device of fig. 1 according to another embodiment of the present application.

Fig. 11 is a schematic cross-sectional view of an augmented reality device according to an embodiment of the present application.

Fig. 12 is an enlarged view of the dotted line area in fig. 11.

Fig. 13 is a schematic cross-sectional view of the adjustment mechanism shown in fig. 7 in the direction B-B according to an embodiment of the present application.

Fig. 14 is an enlarged view of the dashed area of fig. 13 according to an embodiment of the present application.

Fig. 15 is an enlarged view of the dashed area of fig. 13 according to another embodiment of the present application.

Fig. 16 is a schematic cross-sectional view of the adjustment mechanism of fig. 7 in the direction B-B, in accordance with another embodiment of the present application.

Fig. 17 is a schematic cross-sectional view of the adjustment mechanism shown in fig. 7 in the direction B-B according to still another embodiment of the present application.

Fig. 18 is a schematic cross-sectional view of the adjustment mechanism of fig. 7 in the direction C-C, in accordance with an embodiment of the present application.

Fig. 19 is an enlarged view of the dashed area of fig. 18 according to an embodiment of the present application.

Description of the reference numerals:

The device comprises an adjusting mechanism-100, a first adjusting component-110, a first mounting piece-111, a first adjusting piece-112, a first magnet-1121, a fourth magnet-1122, a second adjusting component-120, a second mounting piece-121, a second adjusting piece-122, a second magnet-1221, a third magnet-1222, a third adjusting component-130, a third mounting piece-131, a third adjusting piece-132, an optical waveguide-200, a substrate-210, a coupling-in area-211, a coupling-out area-212, a grating structure-220, a projection optical machine-300, a bearing mechanism-400 and an augmented reality device-500.

Detailed Description

The following are exemplary embodiments of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

In the description of the present application, it should be noted that the terms "coupled," "carried," and "mounted" are to be construed broadly, unless explicitly stated or limited otherwise. For example, they may be fixedly connected, detachably connected, or of unitary construction, they may be mechanically or electrically connected, they may be directly connected, or they may be indirectly connected through intermediaries, or they may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. The terms "first," "second," "third," "fourth" are used for descriptive purposes only and do not indicate or imply relative importance or the number of technical features indicated.

In the description of the present application, the positional or positional relationship indicated by the terms "upper", "inner", "outer", "top", "bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

The present application provides an augmented reality device 500. The augmented reality device 500 may be a head-mounted device such as glasses, a helmet, or the like. Referring to fig. 1, a schematic structural diagram of an augmented reality device 500 according to an embodiment of the present application is shown, wherein the augmented reality device 500 is a pair of glasses, i.e. an augmented reality glasses, and referring to fig. 2, a schematic structural diagram of the augmented reality device 500 according to another embodiment of the present application is shown, wherein the augmented reality device 500 is a helmet, i.e. an augmented reality helmet. Of course, fig. 1 and 2 only schematically illustrate the shape of the augmented reality device 500, and the augmented reality device 500 may be configured to be worn on the head of a user. The following describes in detail an example of augmented reality glasses.

Referring to fig. 3, an exploded schematic diagram of the augmented reality apparatus 500 in fig. 1 according to an embodiment of the present application is provided, the augmented reality apparatus 500 includes an optical waveguide 200 and a projection optical machine 300, the projection optical machine 300 projects an optical signal toward the optical waveguide 200, the optical waveguide 200 is used for transmitting the optical signal incident into the optical waveguide 200, and coupling the optical signal out to form image information, so that a virtual image appears on a real image in front of the naked eye, and an augmented reality function is realized.

In the present application, the optical waveguide 200 may include a reflective array optical waveguide and a diffractive optical waveguide, which may include a surface relief grating and a volume hologram grating, and may be specifically selected according to the implementation mechanism of the augmented reality device 500. Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of an optical waveguide 200 according to an embodiment of the present application, and fig. 5 is a schematic sectional view of the optical waveguide in A-A direction shown in fig. 4. The optical waveguide 200 may include a substrate 210 and a grating structure 220, the substrate 210 has a coupling-in region 211 and a coupling-out region 212 disposed at intervals, and the grating structure 220 is disposed in the coupling-in region 211 and the coupling-out region 212. Specifically, the grating structure 220 may include a plurality of sub-structures having the same shape and being parallel to each other, for example, the grating structure 220 may include at least one of a binary grating, an oblique grating, a blazed grating, a two-dimensional grating, and the like, and the types of the grating structures 220 disposed in the coupling-in region 211 and the coupling-out region 212 may be the same or different, and the grating structures 220 of different regions are disposed on the same side of the substrate 210. Wherein the grating structure 220 of the coupling-in region 211 is used for coupling optical signals into the substrate 210, and the grating structure 220 of the coupling-out region 212 is used for coupling optical signals transmitted in the substrate 210 out of the substrate 210. In another embodiment of the present application, the substrate 210 may further have a turning region, the grating structure 220 is further disposed in the turning region, and the turning region, the coupling-in region 211 and the coupling-out region 212 are disposed at intervals, wherein the turning region is used for expanding the pupil of the graphic information in the optical signal, and the coupling-in region 211 couples the optical signal transmitted by the light to the optical waveguide 200 through the coupling-out region 212 after passing through the turning region. The grating structure 220 disposed in the turning region may be the same type as or different from the grating structure 220 disposed in the coupling-in region 211 and the coupling-out region 212. In the present application, the cross section of the optical waveguide 200 in the thickness direction may be, but not limited to, circular, quasi-circular, elliptical, quasi-elliptical, quadrangular, quasi-quadrangular, circular arc quadrangular, etc., and may be selected as needed.

In an embodiment of the present application, as shown in fig. 3, the augmented reality device 500 further includes a carrying mechanism 400, where the carrying mechanism 400 is used to carry the optical waveguide 200. The arrangement of the optical waveguide 200 and the carrier 400 may be selected as needed, for example, the optical waveguide 200 may be engaged with the carrier 400 or may be screwed. In one embodiment of the present application, the carrying mechanism 400 includes a frame assembly, and the optical waveguide 200 is carried in the frame assembly. Specifically, the lens frame assembly may have a hollowed-out portion, and the optical waveguide 200 is disposed in the hollowed-out portion, so as to be carried by the lens frame assembly. The number of hollowed-out portions in the frame assembly may be set according to the number of optical waveguides 200. In an embodiment, the lens frame assembly includes a first lens frame and a second lens frame, each of the first lens frame and the second lens frame has a hollow portion, and the hollow portions of the first lens frame and the second lens frame each bear the optical waveguide 200. In another embodiment of the present application, the carrying mechanism 400 may further comprise a wearing piece. The wearing piece is provided so that the augmented reality apparatus 500 clamps the target object. In one embodiment, the wear includes a temple assembly that is connected to the frame assembly.

In this embodiment of the present application, the augmented reality device 500 may further include auxiliary function devices such as a microphone, a voice controller, a camera, and the like, or may also include a data line for performing data transmission with an intelligent terminal, and may further include an intelligent module such as a bluetooth module, a WiFi module, and a positioning module, so that wireless data transmission may be performed with an intelligent terminal (for example, an electronic device, and specifically, but not limited to, a mobile phone, a tablet, a computer, a smart watch, an audio-visual device, a navigation device, an unmanned aerial vehicle, a camera, and the like), so as to implement information interaction, so as to implement a rich interaction effect.

In the present application, the augmented reality apparatus 500 includes at least two optical waveguides 200, and each optical waveguide 200 is correspondingly provided with a projection optical bench 300. In an embodiment of the present application, the augmented reality apparatus 500 includes two optical waveguides 200 and a projection optical bench 300 respectively corresponding to one optical waveguide 200. It will be appreciated that the projection light engine 300 projects light signals towards its corresponding light guide 200. Referring to fig. 6, a schematic cross-sectional view of an augmented reality apparatus 500 according to an embodiment of the application is shown, in which a projection optical machine 300 projects an optical signal toward an optical waveguide 200, the optical signal is transmitted in the optical waveguide 200, and then the optical signal is coupled to two eyes, which respectively receive image information, and the image information needs to be combined to form a virtual image before the two eyes, so as to avoid ghost images. The image combining distance d is the distance from the center of the virtual image to the plane where the eyes are located. The inventor researches that under different application scenes, for example, when the existing augmented reality device is used indoors or outdoors, the image combining distance is fixed and cannot be adjusted, however, when the augmented reality device is used indoors, the image combining distance fixed by the augmented reality device is too large (for example, 6m-10 m), or when the augmented reality device is used outdoors, the image combining distance fixed by the augmented reality device is too small (for example, 1.5m-3 m), visual fatigue is easy to generate, and the use comfort of the augmented reality device is affected.

Therefore, the present application provides an augmented reality apparatus 500, including an optical waveguide 200, a projection optical machine 300, and an adjustment mechanism 100, where the optical waveguide 200 is used to transmit an optical signal incident on the optical waveguide 200 and couple the optical signal to form image information, the projection optical machine 300 projects the optical signal toward the optical waveguide 200, and the adjustment mechanism 100 is used to adjust an included angle between the optical waveguide 200 and the projection optical machine 300, so as to adjust an imaging distance of the augmented reality apparatus 500.

The principle of adjusting the image combining distance by the augmented reality device 500 according to the present application will be described with reference to fig. 6. The angle between the light projected by the projector 300 towards the optical waveguide 200 and the optical waveguide 200 is alpha, that is, the angle between the optical waveguide 200 and the projector 300 is alpha, that is, the angle between the plane of the optical waveguide 200 and the extending direction of the projector 300 is alpha, the extending direction of the projector 300 is the same as the direction of the light projected by the projector, the angle between the projector 300 and the direction perpendicular to the optical waveguide 200 is 90 ° -alpha, the angle between the plane of the optical waveguide 200 and the eyes is beta, beta can be 0, the exit angle of the optical signal at the optical waveguide 200 is 90 ° -beta-gamma, that is, the angle between the extending direction of the light coupled out by the optical waveguide 200 and the optical waveguide 200 is 90 ° -beta-gamma, and 90 ° -alpha = 2beta + gamma according to the principle of light propagation of the optical waveguide 200. Thus, according to the relation 90 ° - α=2β+γ, γ and 90 ° - β - γ can be changed by changing α without changing β, and further the distance between the eyes of the user (i.e., the pupil distance) is fixed, and changing γ can adjust the imaging distance d. That is, the adjusting mechanism 100 in the augmented reality apparatus 500 provided by the present application can adjust the included angle α between the optical waveguide 200 and the projector 300, so as to adjust the exit angle 90 ° - β - γ of the optical signal in the optical waveguide 200, that is, change γ, and further adjust the image combining distance d. Therefore, the augmented reality device 500 provided by the application can adjust the image combining distance according to the requirements of application scenes, so that the variability of the augmented reality device 500 is enhanced, repeated adjustment of focal length during use can be effectively prevented, visual fatigue is avoided, the use feeling of a user is improved, and the wide use of the augmented reality device 500 is facilitated.

In the related art, since the optical waveguides 200 and the projection optical machines 300 in the augmented reality device 500 are fixed in position, the image combining distance cannot be adjusted, and after the augmented reality device 500 is deformed, the included angles between the plurality of projection optical machines 300 and the optical waveguides 200 corresponding to the same are different and/or the included angles between the plurality of optical waveguides 200 and the plane where the eyes are located are different, that is, the α and/or β corresponding to the eyes are respectively changed, so that the γ angles of the eyes are different, image combining cannot be realized, and only components in the augmented reality device 500 can be replaced, the maintenance difficulty and the maintenance cost are high, and further damage to the augmented reality device 500 is possibly caused, which is unfavorable for the wide use of the augmented reality device 500. The augmented reality device 500 provided by the application can adjust the included angle between the optical waveguide 200 and the projection optical machine 300, achieves the purpose of image combination again, avoids the maintenance of the augmented reality device 500, reduces the maintenance cost, and improves the usability of the augmented reality device 500.

The above technical effects of the augmented reality apparatus 500 provided by the present application will be described below with reference to fig. 6 by taking left-eye and right-eye imaging as an example. Before the augmented reality device 500 is deformed, the included angles between the light projected by the projection optical machine 300 corresponding to the left eye and the right eye and the optical waveguide 200 corresponding to the light are alpha, the included angles between the plane of the projection optical machine 300 corresponding to the left eye and the plane of the right eye and the optical waveguide 200 corresponding to the light are beta, the distances from the left eye to the virtual image are equal to d/cos gamma, when the included angles between the light projected by the projection optical machine 300 corresponding to the left eye and the optical waveguide 200 corresponding to the light are changed from alpha to alpha ₁, the included angles between the light projected by the projection optical machine 300 corresponding to the right eye and the optical waveguide 200 corresponding to the light are changed from alpha to alpha ₂, the included angles between the projection optical machine 300 corresponding to the left eye and the right eye and the optical waveguide 200 are adjusted through the adjusting mechanism 100, so that the adjusted alpha ₁ is consistent with the adjusted alpha ₂, and when the included angles between the plane of the projection optical machine 200 corresponding to the left eye and the two eyes are changed from beta to beta ₁, the included angles between the plane of the projection optical machine 300 corresponding to the right eye and the optical waveguide 200 are changed from beta to alpha ₁, and the included angles between the projection optical waveguide 200 corresponding to alpha is adjusted through the adjusting mechanism 100, and the included angles between the projection optical machine corresponding to alpha is adjusted to be the alpha 34924. The above description is given taking the simultaneous adjustment of the included angle between the projector 300 corresponding to the left eye and the optical waveguide 200 as an example, it can be understood that the re-imaging can be achieved by only adjusting the included angle between the projector 300 corresponding to the left eye and the optical waveguide 200 or by only adjusting the included angle between the projector 300 corresponding to the right eye and the optical waveguide 200, and when the α and β angle values corresponding to the left eye and the right eye are changed at the same time, the re-imaging can be achieved by adjusting the included angle between the projector 300 corresponding to the left eye and the right eye and the optical waveguide 200, which is not described herein again.

Referring to fig. 7, a schematic structural diagram of an adjusting mechanism 100 according to an embodiment of the present application is shown in fig. 8, and a schematic structural diagram of an adjusting mechanism 100 and a projector 300 according to an embodiment of the present application is shown in fig. 9, and an exploded schematic diagram of an adjusting mechanism 100 and a projector 300 according to an embodiment of the present application is shown in fig. 8, wherein the adjusting mechanism 100 includes a first adjusting component 110 and a second adjusting component 120, the first adjusting component 110 is connected to an optical waveguide 200, the projector 300 is mounted on the second adjusting component 120, and the second adjusting component 120 is rotatably connected to the first adjusting component 110, so that the projector 300 can rotate relative to the optical waveguide 200, and thus an angle between the optical waveguide 200 and the projector 300 can be adjusted, and an outgoing angle of an optical signal in the optical waveguide 200 can be adjusted, thereby achieving the purpose of adjusting an image combining distance of an augmented reality device 500. In other words, the first adjusting component 110 is sleeved on the outer periphery of the second adjusting component 120, the projector 300 is mounted on the second adjusting component 120, and the second adjusting component 120 and the first adjusting component 110 can rotate relatively, so that the projector 300 can be driven to rotate relative to the optical waveguide 200, and the image combining distance can be changed. Referring to fig. 10, an exploded schematic diagram of the augmented reality apparatus 500 in fig. 1 according to another embodiment of the present application is provided, wherein the projection light machine 300 is sleeved on the adjusting mechanism 100, and the adjusting mechanism 100 adjusts an included angle between the optical waveguide 200 and the projection light machine 300 to adjust an exit angle of the optical signal in the optical waveguide 200, thereby adjusting an imaging distance of the augmented reality apparatus 500.

Referring to fig. 11, which is a schematic cross-sectional view of an augmented reality device 500 according to an embodiment of the application, referring to fig. 12, which is an enlarged view of a dotted line area in fig. 11, wherein a first adjusting component 110 is mounted on a surface of an optical waveguide 200, so that the first adjusting component 110 is directly connected to the optical waveguide 200. The projection optical engine 300 is disposed on the second adjusting component 120, and when the second adjusting component 120 rotates relative to the first adjusting component 110, the second adjusting component 120 can drive the projection optical engine 300to move, so that the projection optical engine 300 rotates relative to the optical waveguide 200, and the image combining distance is changed. In one embodiment of the present application, the adjustment mechanism 100 may be coupled to the carrier mechanism 400. In an embodiment of the present application, the first adjusting component 110 is mounted on the carrying mechanism 400, and the carrying mechanism 400 carries the optical waveguide 200, so that the first adjusting component 110 is indirectly connected to the optical waveguide 200. The projection light machine 300 is disposed on the second adjusting component 120, when the second adjusting component 120 rotates relative to the first adjusting component 110, the second adjusting component 120 can drive the projection light machine 300to move, so that the projection light machine 300 rotates relative to the bearing mechanism 400, and further the projection light machine 300 moves relative to the optical waveguide 200 borne by the bearing mechanism 400, so as to change the image combining distance. In one embodiment, the carrying mechanism 400 includes a frame assembly to which the first adjustment assembly 110 may be mounted. In another embodiment, the carrier 400 includes a temple assembly to which the first adjustment assembly 110 can be mounted.

In an embodiment of the present application, the first adjusting assembly 110 includes a first mounting member 111 and a first adjusting member 112, the first mounting member 111 is connected to the optical waveguide 200, and the first adjusting member 112 is carried on the first mounting member 111. In other words, the position between the first mounting member 111 and the optical waveguide 200 is relatively fixed, so that when the second adjusting component 120 rotates relatively to the first adjusting component 110, the included angle between the optical waveguide 200 and the projection optical engine 300 can be changed, thereby changing the image combining distance. In an embodiment of the present application, the first mount 111 is mounted on the surface of the optical waveguide 200 such that the first mount 111 is directly connected to the optical waveguide 200. In another embodiment of the present application, the first mounting member 111 is mounted to the carrying mechanism 400, such as a frame assembly, a temple assembly, etc., such that the first mounting member 111 is indirectly connected to the optical waveguide 200. Specifically, the first mounting member 111 may be connected to the optical waveguide 200, the carrier 400, etc. by an adhesive (such as glue, etc.).

In an embodiment of the present application, the second adjusting assembly 120 includes a second mounting member 121 and a second adjusting member 122, and the second adjusting member 122 and the projector 300 are both mounted on the second mounting member 121, so that the projector 300 moves along with the second mounting member 121, and an included angle between the optical waveguide 200 and the projector 300 is changed, so as to change the image combining distance. In other words, the projection light machine 300 and the second mounting member 121 are fixed relatively, and can move along with the rotation of the second mounting member 121. In an embodiment of the present application, the second mounting member 121 may be disposed through the first mounting member 111 and rotatably connected to the first mounting member 111, so that the second adjusting assembly 120 is rotatably connected to the first adjusting assembly 110. Of course, other arrangements of the second mounting member 121 and the first mounting member 111 are possible, so long as the second adjusting assembly 120 is rotatably connected to the first adjusting assembly 110.

Referring to fig. 13, which is a schematic cross-sectional view of the adjusting mechanism in the direction B-B shown in fig. 7 according to an embodiment of the present application, and referring to fig. 14, which is an enlarged view of a dotted line area in fig. 13 according to an embodiment of the present application, the first adjusting component 110 includes a first mounting member 111 and a first adjusting member 112, the first mounting member 111 is connected to the optical waveguide 200, the first adjusting member 112 is carried on the first mounting member 111, the second adjusting component 120 includes a second mounting member 121 and a second adjusting member 122, the second mounting member 121 is disposed through the first mounting member 111 and is rotatably connected to the first mounting member 111, and the second adjusting member 122 and the projector 300 are both mounted on the second mounting member 121. It will be appreciated that, as shown in fig. 8, the first adjusting member 112 may be carried on a side of the first mounting member 111 facing the second mounting member 121, or may be carried on a top or bottom of the first mounting member 111, and the second adjusting member 122 may be carried on a side of the second mounting member 121 facing the first mounting member 111, or may be carried on a top or bottom of the second mounting member 121. In one embodiment of the present application, as shown in fig. 14, the first adjusting member 112 is disposed on the surface of the first mounting member 111, and the second adjusting member 122 is disposed on the surface of the second mounting member 121. Referring to fig. 15, an enlarged view of a dotted line area in fig. 13 is provided according to another embodiment of the present application, at least a portion of the first adjusting member 112 is disposed inside the first mounting member 111, and at least a portion of the second adjusting member 122 is disposed inside the second mounting member 121. Specifically, the first mounting member 111 and/or the second mounting portion are provided with a through hole or a groove, and the first adjustment member 112 and/or the second adjustment member 122 are provided in the through hole or the groove. The positional relationship between the first adjusting member 112 and the first mounting member 111 and the positional relationship between the second adjusting member 122 and the second mounting member 121 may be the same, for example, they are both provided on the surface of the mounting member, or they may be provided inside the mounting member, or they may be different, for example, they may be provided on the surface of the mounting member, they may be provided inside the mounting member, etc., and the shape, size, etc. of the first adjusting member 112 and the second adjusting member 122 may be selected as required.

In an embodiment of the present application, when one of the first adjusting member 112 and the second adjusting member 122 loads an electrical signal, the first adjusting member 112 and the second adjusting member 122 cooperate to drive the second adjusting member 120 to rotate relative to the first adjusting member 110, so as to adjust the angle between the optical waveguide 200 and the projector 300. In other words, when one of the first adjusting member 112 and the second adjusting member 122 loads an electrical signal, an interaction is generated between the first adjusting member 112 and the second adjusting member 122, so that the second adjusting member 120 rotates relative to the first adjusting member 110, the positions of the projection light machine 300 and the second adjusting member 120 are relatively fixed, the positions of the optical waveguide 200 and the first adjusting member 110 are relatively fixed, and the rotation of the second adjusting member 120 relative to the first adjusting member 110 changes the included angle between the projection light machine 300 and the optical waveguide 200, so as to change the image combining distance.

Referring to fig. 16, a schematic cross-sectional view of an adjusting mechanism in a direction B-B shown in fig. 7 according to another embodiment of the present application is provided, the first adjusting member 112 includes a first magnet 1121, the second adjusting member 122 includes a second magnet 1221, at least one of the first magnet 1121 and the second magnet 1221 is an electromagnet, the first magnet 1121 and the second magnet 1221 are oppositely disposed, and when the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221, so as to adjust an angle between the optical waveguide 200 and the projector 300. Specifically, the first magnet 1121 may be an electromagnet, and the second magnet 1221 may be an electromagnet or a permanent magnet, so that after the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221, or the first magnet 1121 may be a permanent magnet, and the second magnet 1221 may be an electromagnet, so that after the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221. Accordingly, in an embodiment of the present application, the first and second magnets 1121 and 1221 are selected from at least one of permanent magnets and electromagnets, and at least one of the first and second magnets 1121 and 1221 is an electromagnet, so that attractive or repulsive force is generated between the first and second magnets 1121 and 1221 when the electromagnet is loaded with an electrical signal. In other words, the electromagnets generate magnetic fields after being loaded with electric signals, magnetic field force interaction between the electromagnets or magnetic field force interaction between the electromagnets and the permanent magnets is generated, so as to generate attractive force or repulsive force, under the action of the attractive force or repulsive force between the first adjusting member 112 and the second adjusting member 122, the second adjusting member 120 rotates relative to the first adjusting member 110, and the included angle between the projection optical machine 300 and the optical waveguide 200 is changed, so that the image combining distance is adjusted. It can be appreciated that when the first magnet 1121 and the second magnet 1221 are both permanent magnets, the magnitude of the acting force between the two magnets is fixed, and the adjustment of the image combining distance according to the needs still cannot be achieved, and the augmented reality apparatus 500 provided by the present application can change the magnitude, even the direction, of the acting force between the first adjusting member 112 and the second adjusting member 122 by adjusting the intensity of the electric signal, so as to obtain the image combining distances with different needs. The augmented reality device 500 provided by the application can adjust the included angle between the optical waveguide 200 and the projector 300 through the interaction between the first adjusting member 112 and the second adjusting member 122, such as through the interaction between magnets, so as to adjust the emergence angle of the optical signal in the optical waveguide 200 and adjust the imaging distance of the augmented reality device 500.

Referring to fig. 17, in a schematic cross-sectional view of the adjusting mechanism in the direction B-B shown in fig. 7 according to another embodiment of the present application, the first adjusting member 112 includes a first magnet 1121 and a fourth magnet 1122 spaced from the first magnet 1121, the second adjusting member 122 includes a second magnet 1221 and a third magnet 1222 spaced from the second magnet 1221, and the third magnet 1222 and the fourth magnet 1122 are disposed opposite to each other. In one embodiment of the present application, the first, second, third, and fourth magnets 1121, 1221, 1222, 1122 include permanent magnets and at least one electromagnet. That is, the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 contain at least one electromagnet, and the rest can be permanent magnets, and by controlling the electric signals loaded by the electromagnets, the acting force generated between the first magnet 1121 and the second magnet 1221 and the acting force generated between the third magnet 1222 and the fourth magnet 1122 can be controlled, so as to realize the adjustment of the included angle between the projection optical machine 300 and the optical waveguide 200. Of course, the first, second, third, and fourth magnets 1121, 1221, 1222, 1122 may all be electromagnets. In an embodiment of the present application, when the electromagnet is loaded with an electrical signal, the force generated between the first magnet 1121 and the second magnet 1221 is opposite to the force generated between the third magnet 1222 and the fourth magnet 1122, so that the angle between the optical waveguide 200 and the projector 300 can be adjusted to achieve the purpose of adjusting the image combining distance. It can be understood that the above force is an attractive force or repulsive force between the magnetic fields, that is, when an attractive force is generated between the first magnet 1121 and the second magnet 1221, a repulsive force is generated between the third magnet 1222 and the fourth magnet 1122, and when a repulsive force is generated between the first magnet 1121 and the second magnet 1221, an attractive force is generated between the third magnet 1222 and the fourth magnet 1122, so that the second mounting member 121 receives a force in the same direction or approximately the same direction, thereby adjusting the angle between the projector 300 and the optical waveguide 200 and changing the imaging distance. In one embodiment of the present application, after the electromagnet is loaded with an electrical signal, the lines of all the poles of the first, second, third and fourth magnets 1121, 1221, 1222 and 1122 are straight lines. That is, the lines from the north to the south of the first, second, third and fourth magnets 1121, 1221, 1222 and 1122 are in the same line, so that the force generated between the first and second magnets 1121, 1221 and the force generated between the third and fourth magnets 1222, 1122 are ensured to be fully applied in the rotation direction of the projection optical machine 300, which is more beneficial for adjusting the image combining distance.

The projection optical bench 300 rotates from a first position point to a second position point relative to the optical waveguide 200, the first position point corresponds to a third position point on the optical waveguide 200, the second position point corresponds to a fourth position point on the optical waveguide 200, and the direction from the third position point to the fourth position point is the rotation direction of the projection optical bench 300 relative to the optical waveguide 200. When the augmented reality device 500 is in use, the direction of the binocular connection is the first direction, which also refers to the connection direction of the centers of the coupling-out regions 212 on the two optical waveguides 200, and may also refer to the connection direction of the centers of the coupling-in regions 211 on the two optical waveguides 200. In an embodiment of the application, a rotation direction of the projection light machine 300 relative to the optical waveguide 200 is not perpendicular to the first direction, so that an exit angle of the optical signal in the optical waveguide 200 can be adjusted after adjusting an included angle between the optical waveguide 200 and the projection light machine 300. In an embodiment of the present application, a rotation direction of the projection light machine 300 relative to the optical waveguide 200 is parallel to the first direction, so that an exit angle of the light signal in the optical waveguide 200 can be adjusted more simply and conveniently by adjusting an included angle between the optical waveguide 200 and the projection light machine 300. In one embodiment, the direction of the force with which the first adjustment member 112 and the second adjustment member 122 interact is parallel to the first direction. Specifically, for example, the connection line between the first magnet 1121 and the second magnet 1221 is a first direction, so as to ensure that the direction of the interaction force between the first adjusting member 112 and the second adjusting member 122 is parallel to the first direction, and for example, the connection line between all the magnetic poles in the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 is a straight line, and the direction of the straight line is parallel to the first direction, so as to ensure that after the projection optical bench 300 rotates relative to the optical waveguide 200, the exit angle of the optical signal in the optical waveguide 200 can be changed, so as to adjust the integrated image distance.

In an embodiment of the present application, the adjusting mechanism 100 further includes a third adjusting assembly 130, the third adjusting assembly 130 is connected to the first adjusting assembly 110 and the second adjusting assembly 120, and the third adjusting assembly 130 is used for locking the second adjusting member 122 when the second adjusting assembly 120 rotates to a preset position relative to the first adjusting assembly 110. The first adjusting component 110 and the second adjusting component 120 are matched to drive the projection optical bench 300 to rotate relative to the optical waveguide 200, when the second adjusting component 120 rotates to a preset position relative to the first adjusting component 110, the included angle between the projection optical bench 300 and the optical waveguide 200 reaches the preset included angle, at the moment, the light signal reaches the preset exit angle at the exit angle of the optical waveguide 200, the image combining distance reaches the preset image combining distance, the third adjusting component 130 locks the second adjusting component 122, the relative positions of the second adjusting component 120 and the first adjusting component 110 are fixed, and therefore the included angle between the projection optical bench 300 and the optical waveguide 200 is fixed, the preset image combining distance is obtained when the augmented reality device 500 is used, and the use requirement of the augmented reality device 500 is met. Referring to fig. 18, a schematic cross-sectional view of the adjusting mechanism in the direction C-C shown in fig. 7 according to an embodiment of the present application is shown, the adjusting mechanism 100 includes a first adjusting component 110, a second adjusting component 120 and a third adjusting component 130, and the third adjusting component 130 is connected to the first adjusting component 110 and the second adjusting component 120. In one embodiment of the present application, as shown in fig. 18, a third adjustment assembly 130 is carried by the first adjustment assembly 110 and is connected to the second adjustment assembly 120. Specifically, the third adjustment assembly 130 may be mounted on a surface of the first adjustment assembly 110, or the first adjustment assembly 110 may have a receiving groove in which the third adjustment assembly 130 is disposed. In an embodiment of the present application, the second mounting member 121 has a mounting shaft facing the first adjustment assembly 110, the third adjustment assembly 130 is carried in the first adjustment assembly 110, and the mounting bearing of the second mounting member 121 is carried in the third adjustment assembly 130, thereby connecting the third adjustment assembly 130 with the first adjustment assembly 110 and the second adjustment assembly 120. Referring to fig. 19, in an enlarged view of the dashed area in fig. 18, according to an embodiment of the present application, the third adjusting assembly 130 includes a third mounting member 131 and a third adjusting member 132, and the second adjusting member 122 is locked by the cooperation of the third mounting member 131 and the third adjusting member 132. In an embodiment of the present application, the third mounting member 131 connects the first adjustment assembly 110 and the second adjustment assembly 120 such that the second adjustment assembly 120 can rotate about the third mounting member 131 relative to the first adjustment assembly 110. In other words, the third mounting member 131 can drive the second adjusting assembly 120 to rotate relative to the first adjusting assembly 110 when the first adjusting assembly 110 and the second adjusting assembly 120 are engaged, and the second adjusting assembly 120 rotates around the third mounting member 131. In an embodiment of the present application, the third adjusting assemblies 130 are disposed on opposite sides of the second adjusting assembly 120, so that the second adjusting assembly 120 can be better driven to move, so that the second adjusting assembly 120 can only rotate in the direction around the third mounting member 131, thereby better adjusting the image combining distance. In an embodiment of the present application, the connection lines of the third adjusting assemblies 130 on two opposite sides of the second adjusting assembly 120 are perpendicular to the first direction, so as to better adjust the image combining distance. In an embodiment of the present application, when the third adjusting member 132 is not loaded with an electrical signal, the third adjusting member 132 abuts against the third mounting member 131 to fix the second adjusting assembly 120 at a predetermined position, and when the third adjusting member 132 is loaded with an electrical signal, the third adjusting member 132 moves and is spaced apart from the third mounting member 131 to enable the second adjusting assembly 120 to rotate relative to the first adjusting assembly 110. When the third adjusting member 132 is not loaded with an electrical signal, the third adjusting member 132 abuts against the third mounting member 131, the third mounting member 131 rotates under the resistance of the third adjusting member 132, so as to limit the movement of the second adjusting assembly 120, achieve the purpose of fixing the second adjusting member 122, and fix the included angle between the projector 300 and the optical waveguide 200, when the third adjusting member 132 is loaded with an electrical signal, the third adjusting member 132 moves and is isolated from the third mounting member 131, and no resistance is generated to the rotation of the third mounting member 131, so that the third mounting member 131 drives the second adjusting assembly 120 to rotate relative to the first adjusting assembly 110, thereby changing the included angle between the optical waveguide 200 and the projector 300, and further changing the image combining distance.

In an embodiment of the present application, the third adjusting member 132 includes a limiting member and a driving member, the limiting member includes a telescopic elastic portion and a limiting portion connected to the elastic portion, the limiting portion is abutted to the third mounting member 131, and the driving member is used for driving the elastic portion to shrink when the third adjusting member 132 loads the electrical signal, so that the limiting portion is spaced apart from the third mounting member 131. When the electric signal is removed, the contracted elastic part stretches under the action of self-resilience force, and the stretched elastic part drives the limiting part to move towards the direction of the third mounting part 131 so as to enable the limiting part to abut against the third mounting part 122 to achieve the purpose of fixing the second adjusting part 122, so that an included angle between the projector 300 and the optical waveguide 200 is fixed. In one embodiment of the present application, the driving member may be loaded with an electrical signal to cause the elastic portion to be driven to contract. In the present application, the elastic portion may be, but not limited to, a spring, the driving member may be, but not limited to, an electromagnetic switch, the limiting member may be, but not limited to, a structure capable of fixing the third mounting member 131 when abutting against the third mounting member 131, specifically, the surface of the limiting member abutting against the third mounting member 131 has a relatively high roughness, so that the second adjusting member 122 can be fixed better, and the specific roughness can be selected as required, which is not limited.

In an embodiment of the present application, the third mounting member 131 may include a receiving member, which may be carried by the first adjusting assembly 110, and the second adjusting assembly 120 is carried by the receiving member. In one embodiment of the application, the mounting shaft of the second mounting member 121 is disposed in the receiving member. In another embodiment of the present application, the third mounting member 131 may include a rotating member, where the rotating member is carried by the first adjusting assembly 110, and the rotating member is disposed between the accommodating member and the first adjusting assembly 110, where one end of the rotating member is connected to the first adjusting assembly 110, and the other end of the rotating member is connected to the second adjusting assembly 120, and when the third adjusting member 132 is loaded with an electrical signal, the rotating member drives the accommodating member and the second adjusting assembly 120 to rotate relative to the first adjusting assembly 110. That is, when the third adjusting member 132 is loaded with an electrical signal, the rotating member can move and drive the second adjusting member 120 to rotate relative to the first adjusting member 110, and at this time, the third adjusting member 130 can not only fix the second adjusting member 120 when reaching the preset position, but also provide a force for the movement of the second adjusting member 120. In the present application, the direction in which the third adjusting component 130 drives the second adjusting component 120 to move may be opposite to or the same as the direction of the force between the first adjusting component 110 and the second adjusting component 120. For example, when the direction of the force between the first adjusting component 110 and the second adjusting component 120 is opposite to the direction of the force generated by the third adjusting component 130 driving the second adjusting component 120, the third adjusting component 130 generates a force on the second adjusting component 120, and a force is generated between the first adjusting component 110 and the second adjusting component 120, so that the second adjusting component 120 moves in a direction with a larger force. In one embodiment of the application, the rotating member comprises at least one of a clockwork spring structure and a torsion spring structure. The clockwork spring structure and the torsion spring structure are provided with opposite free ends and fixed ends, wherein the fixed ends can be connected with the first adjusting component 110, the free ends are connected with the second adjusting component 120 so as to drive the second adjusting component 120 to rotate, and the clockwork spring structure or the torsion spring structure can be sleeved on the surface of the accommodating piece. In one embodiment, the receiving member may be a bearing, and the clockwork spring structure or torsion spring structure may be sleeved on the bearing surface.

In one embodiment of the present application, the adjustment mechanism 100 further includes a power supply assembly electrically connected to at least one of the first adjustment assembly 110 and the second adjustment assembly 120. The power supply assembly may be used to load an electrical signal, and in particular, the power supply assembly may be electrically connected to the electromagnet to load the electromagnet with an electrical signal. For example, the power supply component controls the current intensity and the current direction in the loaded electric signal, so that the magnetic field intensity and the acting force direction generated by the electromagnet can be controlled, and the magnetic field intensity and the like can be changed by controlling the number of turns of the coil of the electromagnet. In an embodiment of the present application, the power supply assembly may also be electrically connected to the third adjustment assembly 130. Specifically, the power supply assembly may be electrically connected to the third adjustment member 132 or a driving member in the third adjustment member 132. In an embodiment of the present application, in the augmented reality apparatus 500 provided by the present application, an electrical signal is loaded by the power supply assembly, the third adjusting member 132 moves towards a direction away from the third mounting member 131, and an acting force is generated between the first adjusting member 112 and the second adjusting member 122, so that the second adjusting member 120 can rotate around the third adjusting member 130 relative to the first adjusting member 110, thereby adjusting an included angle between the optical waveguide 200 and the projector 300, and adjusting an image-combining distance, when the image-combining distance reaches a preset distance, the power supply assembly stops loading the electrical signal, the third adjusting member 132 moves towards the third mounting member 131 and abuts against the third mounting member 131, thereby fixing the second adjusting member 120, and meanwhile, an acting force is generated between the first adjusting member 112 and the second adjusting member 122, but due to the fixing of the second adjusting member 120, no relative rotation occurs between the first adjusting member 112 and the second adjusting member 122, and the included angle between the optical waveguide 200 and the projector 300 is maintained, thereby maintaining the preset distance. It can be appreciated that, in the above implementation manner of adjusting the image capturing distance by using the augmented reality device 500 according to the present application, the augmented reality device 500 may also have various ways of adjusting the image capturing distance, which are already mentioned in the above description and are not repeated here.

In an embodiment of the present application, the augmented reality device 500 further comprises a processor. The processor may process information such as, but not limited to, an angle between the optical waveguide 200 and the projection light engine 300 in the augmented reality device 500, an exit angle of the optical signal at the optical waveguide 200, an imaging distance, a direction and a magnitude of an electromagnet current, and a magnitude of an attractive force or a repulsive force between the first adjusting member 112 and the second adjusting member 122. In the application, the processor can perform signal transmission with the terminal, and the processor is controlled by the terminal, so as to control the adjusting mechanism 100, thereby being capable of more intelligently adjusting the image combining distance of the augmented reality device 500.

While the foregoing has been presented in a detail to illustrate the principles and embodiments of the present application, it is to be understood that the foregoing description is only illustrative of the method and its core concept and that the application is not to be construed as limited to the specific embodiments and applications of the present application as it is contemplated by those skilled in the art.

Claims (14)

1. An augmented reality device, comprising:

the optical waveguide is used for transmitting an optical signal injected into the optical waveguide and coupling the optical signal out to form image information;

A projection light machine, which projects the optical signal toward the optical waveguide, and

And the adjusting mechanism is used for adjusting an included angle between the optical waveguide and the projection optical machine so as to adjust the image combining distance of the augmented reality equipment.

2. The augmented reality device of claim 1, wherein the adjustment mechanism comprises a first adjustment assembly and a second adjustment assembly, the first adjustment assembly is connected to the optical waveguide, the projection light engine is mounted to the second adjustment assembly, and the second adjustment assembly is rotatably connected to the first adjustment assembly such that the projection light engine is rotatable relative to the optical waveguide.

3. The augmented reality device of claim 2, wherein the first adjustment assembly comprises a first mount and a first adjustment member, the first mount being coupled to the optical waveguide, the first adjustment member being carried by the first mount;

The second adjusting component comprises a second mounting piece and a second adjusting piece, the second mounting piece penetrates through the first mounting piece and is rotatably connected with the first mounting piece, and the second adjusting piece and the projection optical machine are both mounted on the second mounting piece;

When one of the first adjusting piece and the second adjusting piece is loaded with an electric signal, the first adjusting piece and the second adjusting piece are matched to drive the second adjusting component to rotate relative to the first adjusting component, so that an included angle between the optical waveguide and the projection optical machine is adjusted.

4. The augmented reality device of claim 3, wherein the first adjustment member comprises a first magnet and the second adjustment member comprises a second magnet, at least one of the first magnet and the second magnet being an electromagnet, the first magnet and the second magnet being disposed opposite each other,

When the electromagnet loads the electric signal, attractive force or repulsive force is generated between the first magnet and the second magnet, so that the included angle between the optical waveguide and the projection optical machine is adjusted.

5. The augmented reality device of claim 4, wherein the second adjustment member further comprises a third magnet disposed in spaced relation to the second magnet, the first adjustment member further comprises a fourth magnet disposed in spaced relation to the first magnet, the third magnet and the fourth magnet being disposed opposite.

6. The augmented reality device of claim 5, wherein the first magnet, the second magnet, the third magnet, and the fourth magnet comprise permanent magnets and at least one electromagnet, and wherein lines of all poles in the first magnet, the second magnet, the third magnet, and the fourth magnet are straight lines when the electromagnets are loaded with the electrical signals, and wherein a force generated between the first magnet and the second magnet is opposite to a force generated between the third magnet and the fourth magnet.

7. The augmented reality device of any one of claims 2-6, wherein the adjustment mechanism further comprises a third adjustment assembly coupled to the first adjustment assembly and the second adjustment assembly, the third adjustment assembly to lock the second adjustment member when the second adjustment assembly is rotated to a preset position relative to the first adjustment assembly.

8. The augmented reality device of claim 7, wherein the third adjustment assembly comprises a third mount and a third adjustment member, the third mount connecting the first adjustment assembly and the second adjustment assembly such that the second adjustment assembly is rotatable about the third mount relative to the first adjustment assembly,

When the third adjusting piece is not loaded with an electric signal, the third adjusting piece is abutted with the third mounting piece so as to fix the second adjusting component at the preset position,

When the third adjustment member is loaded with an electrical signal, the third adjustment member moves and is spaced apart from the third mounting member to enable the second adjustment assembly to rotate relative to the first adjustment assembly.

9. The augmented reality device of claim 8, wherein the third adjustment member comprises a stop member and a driving member, the stop member comprises a telescopic elastic portion and a stop portion connected with the elastic portion, the stop portion is abutted with the third mounting member, and the driving member is used for driving the elastic portion to shrink when the third adjustment member loads the electric signal so as to space the stop portion from the third mounting member.

10. The augmented reality device of claim 8, wherein the third mounting member comprises a receiving member and a rotating member, the receiving member and the rotating member being carried by the first adjustment assembly, the rotating member being disposed between the receiving member and the first adjustment assembly,

One end of the rotating piece is connected with the first adjusting component, the other end of the rotating piece is connected with the second adjusting component, and when the third adjusting piece loads the electric signal, the rotating piece drives the accommodating piece and the second adjusting component to rotate relative to the first adjusting component.

11. The augmented reality device of any one of claims 2-10, wherein the adjustment mechanism further comprises a power supply assembly electrically connected with at least one of the first adjustment assembly and the second adjustment assembly.

12. The augmented reality device of claim 1, comprising at least two optical waveguides, each of the optical waveguides being provided with a corresponding projection light engine.

13. The augmented reality device of claim 12, wherein the optical waveguide has a coupling-out region, a central line direction of the coupling-out regions of two of the optical waveguides is a first direction,

The adjusting mechanism is used for enabling the projection optical machine to rotate relative to the optical waveguide so as to adjust an included angle between the optical waveguide and the projection optical machine, and the rotating direction of the projection optical machine relative to the optical waveguide is parallel to the first direction.

14. The augmented reality device of claim 1, further comprising a carrying mechanism coupled to the adjustment mechanism, the carrying mechanism comprising a mirror frame assembly and a temple assembly coupled to the mirror frame assembly, the optical waveguide carried in the mirror frame assembly.