Lens device and head-mounted display equipment

Abstract

The invention discloses a lens device and a head-mounted display device, the lens device is provided with a mounting bracket, a first lens barrel and a second lens barrel, the first lens barrel is movably connected to the mounting bracket, and the first lens barrel comprises a first guide groove; the second lens cone is movably connected to the mounting bracket, a sliding part is arranged on one side, facing the first lens cone, of the second lens cone, and the sliding part is movably connected to the first guide groove; when one of the first lens cone and the second lens cone moves along a first movement direction relative to the mounting bracket, the sliding part can move along the extension direction of the first guide groove relative to the first guide groove, thereby driving the other one of the first lens cone and the second lens cone to move along a second movement direction relative to the mounting bracket. The second movement direction is opposite to the first movement direction, so that the interpupillary distance can be adjusted, the structure is simple, the occupied space is small, and the cost is low.

Description

Technical Field

[0001] The present application belongs to the field of three-dimensional display technology, and in particular, relates to a lens device and a head-mounted display device. Background Art

[0002] A head-mounted display device is a wearable smart device that uses optical technology to guide the video image light emitted by a micro-image display to the user's pupil, realizes virtual and enlarged images within the user's near-eye range, and provides the user with intuitive and visual images, videos, and text information.

[0003] The head-mounted display device is provided with two left and right lens barrels, corresponding to the left and right eyes of a person respectively, and the user can view the content displayed on the display screen through the lenses in the lens barrels. In order to make the head-mounted display device adaptable to users with different pupil distances, in the related art, the lenses are usually arranged in the lens barrels, and a gear rack mechanism is arranged between the lens barrels, which is used to adjust the distance between the two lens barrels.

[0004] However, the interpupillary distance adjustment solution in the related art has a complex structure. Summary of the invention

[0005] The embodiments of the present application provide a lens device and a head-mounted display device to solve the technical problem of complex structure of the head-mounted display device in the related art.

[0006] In a first aspect, an embodiment of the present application provides a barrel device for a head-mounted display device, comprising: a mounting bracket; a first barrel, movably connected to the mounting bracket, and the first barrel includes a first guide groove; a second barrel, movably connected to the mounting bracket, and a sliding portion is provided on a side of the second barrel facing the first barrel, and the sliding portion is movably connected to the first guide groove; when one of the first barrel and the second barrel moves relative to the mounting bracket along a first movement direction, the sliding portion can move relative to the first guide groove along an extension direction of the first guide groove, thereby driving the other of the first barrel and the second barrel to move relative to the mounting bracket along a second movement direction, thereby making the first barrel and the second barrel approach or move away from each other, wherein the second movement direction is opposite to the first movement direction.

[0007] In a second aspect, an embodiment of the present application provides a head-mounted display device, comprising: a housing and any one of the lens devices described above; the lens device is installed in the housing.

[0008] The lens device and head-mounted display device provided by the embodiments of the present application are provided with a mounting bracket, a first lens barrel and a second lens barrel, wherein the first lens barrel is movably connected to the mounting bracket, and a first guide groove is provided on the first lens barrel; the second lens barrel is movably connected to the mounting bracket, and a sliding portion is provided on the inner side of the second lens barrel facing the first lens barrel, and the sliding portion is movably connected to the first guide groove; when one of the first lens barrel and the second lens barrel moves relative to the mounting bracket along the first movement direction, the sliding portion can move relative to the first guide groove along the extension direction of the first guide groove, thereby driving the other of the first lens barrel and the second lens barrel to move relative to the mounting bracket along the second movement direction, thereby making the first lens barrel and the second lens barrel approach each other or move away from each other, wherein the second movement direction is opposite to the first movement direction, thereby realizing the adjustment of the pupil distance, and the structure is simple, small space occupation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0010] Figure 1 A three-dimensional schematic diagram of a lens device provided in one embodiment of the present application;

[0011] Figure 2 A schematic diagram of the structure of the lens device provided in one embodiment of the present application when the pupil distance is the largest;

[0012] Figure 3 A schematic diagram of the structure of the lens device provided in one embodiment of the present application when the pupil distance is minimum;

[0013] Figure 4 for Figure 1 A schematic diagram of the structure of the mounting bracket;

[0014] Figure 5 for Figure 1 Schematic diagram of the structure of the first lens barrel.

[0015] Description of reference numerals:

[0016] 100: mounting bracket; 110: central axis surface of the mounting bracket;

[0017] 120: second guide groove; 130: first connecting portion;

[0018] 131: first connector; 132: second connector;

[0019] 140: second connecting portion; 150: first mounting seat;

[0020] 160: second mounting seat; 200: first lens barrel;

[0021] 201: first cylinder; 202: second flange;

[0022] 210: first guide groove; 220: first support portion;

[0023] 230: first rotating part; 240: first sliding hole;

[0024] 300: second lens barrel; 301- second barrel body;

[0025] 302: fourth flange; 310: sliding portion;

[0026] 311: pin; 320: second supporting portion;

[0027] 330: second rotating part; 340: second sliding hole. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, but cannot be understood as limiting the present application.

[0029] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0030] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0034] The embodiments of the present application can be applied to various application scenarios such as extended reality (Extended Reality, XR), virtual reality (Virtual Reality, VR), augmented reality (Augmented Reality, AR), and mixed reality (Mixed Reality, MR).

[0035] First, some nouns or terms that appear in the description of the embodiments of the present application are explained as follows:

[0036] Extended Reality (XR) is a concept that includes Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR). It refers to the technology that creates an environment in which the virtual world is connected to the real world, and users can interact with the environment in real time.

[0037] Virtual Reality (VR) is a technology for creating and experiencing a virtual world. It generates a virtual environment by computation. It is a multi-source information (the virtual reality mentioned in this article includes at least visual perception, and can also include auditory perception, tactile perception, motion perception, and even taste perception, olfactory perception, etc.). It realizes the simulation of the fusion and interactive three-dimensional dynamic vision and entity behavior of the virtual environment, immersing users in a simulated virtual reality environment, and realizing its application in various virtual environments such as maps, games, videos, education, medical treatment, simulation, collaborative training, sales, assisted manufacturing, maintenance and repair.

[0038] Augmented Reality (AR) is a technology that calculates the camera's posture parameters in the real world (or three-dimensional world, real world) in real time during the process of the camera capturing images, and adds virtual elements to the images captured by the camera based on the camera posture parameters. Virtual elements include but are not limited to: images, videos and three-dimensional models. The goal of AR technology is to integrate the virtual world with the real world on the screen for interaction.

[0039] Mixed Reality (MR) is a simulated setting that integrates computer-created sensory input (e.g., virtual objects) with sensory input from a physical setting or its representation. In some MR settings, the computer-created sensory input can adapt to changes in sensory input from the physical setting. In addition, some electronic systems used to present MR settings can monitor the orientation and / or position relative to the physical setting so that virtual objects can interact with real objects (i.e., physical elements from the physical setting or their representations). For example, the system can monitor movement so that virtual plants appear stationary relative to physical buildings.

[0040] Augmented Virtuality (AV), AV scenery refers to a simulated scenery in which a computer-created scenery or a virtual scenery incorporates at least one sensory input from a physical scenery. One or more sensory inputs from a physical scenery may be a representation of at least one feature of the physical scenery. For example, a virtual object may present the color of a physical element captured by one or more imaging sensors. For another example, a virtual object may present features consistent with actual weather conditions in a physical scenery, as identified via weather-related imaging sensors and / or online weather data. In another example, an augmented reality forest may have virtual trees and structures, but animals may have features accurately reproduced from images taken of physical animals.

[0041] The virtual field of view refers to the area in the virtual environment that the user can perceive through the lens in the virtual reality device, and the field of view (FOV) of the virtual field of view is used to represent the perceived area.

[0042] Virtual reality devices, terminals for realizing virtual reality effects, can usually be provided in the form of glasses, helmet-mounted displays (Head Mount Display, HMD), and contact lenses to realize visual perception and other forms of perception. Of course, the form of virtual reality devices is not limited to this, and can be further miniaturized or enlarged as needed.

[0043] In the related art, the head-mounted display device is equipped with two left and right lens barrels, each of which has a lens installed in it, corresponding to the left and right eyes of a person. However, the pupil distance of different people is different, and there are differences between men and women, young and old, and different races. If the pupil distance cannot be adjusted, the vision will be blurred, affecting the user experience. In order to better improve the user experience, the pupil distance adjustment function of the head-mounted display device is more important.

[0044] In the related art, a gear rack mechanism or a forward and reverse screw screw mechanism is arranged between the two lens barrels to adjust the distance between the two lens barrels and realize the adjustment of the pupil distance.

[0045] However, the rack and pinion mechanism and the forward and reverse screw screw mechanism occupy a large space and have a complex structure, resulting in a high cost for the head-mounted display device.

[0046] In order to solve at least one of the above problems, an embodiment of the present application provides a lens device and a head-mounted display device, by providing a mounting bracket, a first lens barrel and a second lens barrel, the first lens barrel can be rotatably connected to the mounting bracket, and a first guide groove is provided on the first lens barrel; the second lens barrel can be rotatably connected to the mounting bracket, and a sliding portion is provided on the inner side of the second lens barrel facing the first lens barrel, and the sliding portion is movably connected to the first guide groove; when one of the first lens barrel and the second lens barrel rotates relative to the mounting bracket along the first movement direction, the sliding portion can move relative to the first guide groove along the extension direction of the first guide groove, thereby driving the other of the first lens barrel and the second lens barrel to rotate relative to the mounting bracket along the second movement direction, thereby making the first lens barrel and the second lens barrel approach or move away from each other, wherein the second movement direction is opposite to the first movement direction, so that the pupil distance can be adjusted, and the structure is simple, the space occupied is small, and the cost is low.

[0047] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0048] Figure 1 A three-dimensional schematic diagram of a lens device provided in one embodiment of the present application; Figure 2 A schematic diagram of the structure of the lens device provided in one embodiment of the present application when the pupil distance is the largest; Figure 3 A schematic diagram of the structure of the lens device provided in one embodiment of the present application when the pupil distance is minimum; Figure 4 for Figure 1 A schematic diagram of the structure of the mounting bracket; Figure 5 for Figure 1 Schematic diagram of the structure of the first lens barrel.

[0049] Please refer to Figures 1 to 5 An embodiment of the present application provides a lens device, which can be used in a head-mounted display device. The head-mounted display device can be a VR device, an AR device, an XR device, or an MR device, etc.

[0050] The lens device comprises: a mounting bracket 100, a first lens barrel 200 and a second lens barrel 300; the first lens barrel 200 is movably connected to the mounting bracket 100, and a first guide groove 210 is provided on the first lens barrel 200; the second lens barrel 300 is movably connected to the mounting bracket 100, and a sliding portion 310 is provided on a side of the second lens barrel 300 facing the first lens barrel 200, and the sliding portion 310 is movably connected to the first guide groove 210; when one of the first lens barrel 200 and the second lens barrel 300 moves relative to the mounting bracket 100 along a first movement direction, the sliding portion 310 can move relative to the first guide groove 210 along an extension direction of the first guide groove 210, thereby driving the other one of the first lens barrel 200 and the second lens barrel 300 to move relative to the mounting bracket 100 along a second movement direction, thereby making the first lens barrel 200 and the second lens barrel 300 approach each other or move away from each other, wherein the second movement direction is opposite to the first movement direction.

[0051] The mounting bracket 100 can play a supporting role and can be made of metal, plastic and other materials. Figure 3 The outer contour of the mounting bracket 100 can be arranged bilaterally symmetrically, with the symmetric center plane being Figure 3 The central axis surface 110 of the mounting bracket.

[0052] The first lens barrel 200 and the second lens barrel 300 may both be cylindrical structures, and lenses may be installed inside them. The first lens barrel 200 and the second lens barrel 300 may also be made of materials such as metal and plastic.

[0053] The first lens barrel 200 and the second lens barrel 300 may be arranged along Figure 2 The left and right directions in the middle are installed on the mounting bracket. When in use, the two can also be symmetrically arranged about the central axis surface 110 of the mounting bracket.

[0054] It can be understood that the center of the first lens barrel 200 can be the center point of the first lens barrel 200 facing the user's pupil, and the center of the second lens barrel 300 can be the center point of the second lens barrel 300 facing the user's pupil. The pupil distance adjustment can be understood as adjusting the distance between the first lens barrel 200 and the second lens barrel 300. Figure 2 The distance in the left-right direction is adjusted, that is, the distance between the center of the first lens barrel 200 and the center of the second lens barrel 300 is adjusted.

[0055] Taking the first lens barrel 200 as an example, the first lens barrel 200 is rotatably connected to the mounting bracket 100, and the center of the rotation deviates from the center of the first lens barrel 200, so that during the rotation of the first lens barrel 200 relative to the mounting bracket 100, the center of the first lens barrel 200 can change position relative to the mounting bracket 100, thereby achieving the adjustment of the pupil distance. There are many ways to realize the rotation of the two, for example, Figure 1In the embodiment, a first rotating portion 230 may be provided at the top of the first lens barrel 200, the first rotating portion 230 may be a rotating hole, the mounting bracket 100 may be provided with a rotating shaft, the rotating shaft may be penetrated by the rotating hole, so as to realize the relative rotation of the two, or the first rotating portion 230 may be a rotating shaft, the mounting bracket may be provided with a rotating hole, or the first rotating portion 230 may include a first rotating hole, the mounting bracket 100 may be provided with a second rotating hole, the rotating shaft may be penetrated by the first rotating hole and the second rotating hole, and so on.

[0056] Similarly, the second lens barrel 300 is rotatably connected to the mounting bracket 100, and the rotation between the two is the same as the rotation between the first lens barrel 200 and the mounting bracket 100. For example, Figure 1 In the embodiment, a second rotating portion 330 may also be provided at the top of the second lens barrel 300. The rotational connection between the second rotating portion 330 and the mounting bracket 100 is the same or similar to the connection between the first rotating portion 230 and the mounting bracket 100. For details, please refer to the above embodiment.

[0057] It is understood that the first rotating portion 230 and the second rotating portion 330 may be located on the same side of the mounting bracket. Figure 2 or both can be located at Figure 2 to the underside of the center mounting bracket.

[0058] The first lens barrel 200 is further provided with a first guide groove 210 . The first guide groove 210 may be provided outside the barrel wall of the first lens barrel 200 . The extension direction of the first guide groove 210 may be a straight line or a curve.

[0059] The second lens barrel 300 is further provided with a sliding portion 310 , and the sliding portion 310 and the first guide groove 210 are both located between the first lens barrel 200 and the second lens barrel 300 .

[0060] The sliding part 310 can be slidably arranged in the first guide groove 210, that is, it can move relative to the first guide groove 210 along the extension direction of the first guide groove 210 in the first guide groove 210, and during the movement, the side surface of the sliding part 310 can keep in contact with the inner wall of the first guide groove 210, and there is an interaction force between the two. If the extension direction of the first guide groove 210 is a straight line, the force of the sliding part 310 on the first guide groove 210 is perpendicular to the first guide groove 210. If the extension direction of the first guide groove 210 is a curve, the force of the sliding part 310 on the first guide groove 210 is perpendicular to the tangent of the first guide groove 210 at the position of the sliding part 310. In addition, the structure of the sliding part 310 can be various, for example, it can be a spherical body, a cylindrical body or a block structure.

[0061] It can be understood that when the user needs to adjust the pupil distance, the first lens barrel 200 or the second lens barrel 300 can be pushed or pulled by hand. Taking the user operating the first lens barrel 200 as an example, the first lens barrel 200 can rotate relative to the mounting bracket 100 along the first movement direction under the action of an external force (for example, Figure 2 The first guide groove 210 will also rotate simultaneously with the first lens barrel 200. Since the sliding portion 310 is slidably arranged in the first guide groove 210, the movement trajectory of the sliding portion 310 relative to the first guide groove 210 is along the extension direction of the first guide groove 210, and since the distance between the sliding portion 310 and the second rotating portion 330 is a fixed distance, the movement trajectory of the sliding portion 310 relative to the mounting bracket is also an arc shape with the second rotating portion 330 as the rotation center. When the position of the first guide groove 210 changes, the groove wall of the first guide groove 210 pushes the sliding portion 310 to rotate relative to the mounting bracket 100, so that the second lens barrel 300 can rotate relative to the mounting bracket 100 along the second movement direction (for example Figure 2 The first lens barrel 200 and the second lens barrel 300 can be moved closer to or farther from each other, thereby adjusting the pupil distance.

[0062] The first movement direction may be clockwise or counterclockwise, and the corresponding second movement direction may be counterclockwise or clockwise.

[0063] In this embodiment, the lens device can realize synchronous transmission of the first lens barrel 200 and the second lens barrel 300 without any additional plastic parts, and can reliably adjust the pupil distance. Compared with the solution in the related art, the structure is simpler, and since the mechanism does not introduce other plastic parts, the cost can be reduced. At the same time, the first guide groove 210 and the sliding part 310 can be located between the first lens barrel 200 and the second lens barrel 300, occupying a small space, with high space utilization, and more space can be reserved for other electronic devices, so that the volume of the lens device can be reduced, which is conducive to the miniaturization of the lens device, and further can reduce the volume and weight of the head-mounted display device.

[0064] In some embodiments, during the movement of the first lens barrel 200 and the second lens barrel 300 relative to the mounting bracket 100, the trajectory of the first lens barrel 200 has a plurality of first adjustment points, the trajectory of the second lens barrel 300 has a plurality of second adjustment points respectively corresponding to the plurality of first adjustment points, and when the first lens barrel 200 is located at the first adjustment point and the second lens barrel 300 is located at the corresponding second adjustment point, the center of the first lens barrel 200 and the center of the second lens barrel 300 are symmetrically arranged relative to the central axis plane 110 of the mounting bracket 100.

[0065] It can be understood that in this embodiment, the pupil distance can be adjusted in steps, that is, there are several fixed gears for the pupil distance adjustment. For example, the pupil distance can be divided into three gears: large, medium, and small. Each gear corresponds to a first adjustment point on the trajectory of the first lens barrel 200, and each gear corresponds to a second adjustment point on the trajectory of the second lens barrel 300.

[0066] By setting the extension direction (shape) of the first guide groove 210, the first lens barrel 200 and the second lens barrel 300 can be symmetrically arranged about the central axis surface 110 of the mounting bracket at each gear position. Taking three gear positions as an example, the trajectory of the first lens barrel 200 can have three first adjustment points, and the trajectory of the second lens barrel 300 can have three corresponding second adjustment points. The first guide groove 210 can extend in a straight line direction, and there can be three gear positions in the straight line direction. When the first lens barrel 200 is located at the first adjustment point and the second lens barrel 300 is located at the corresponding second adjustment point, the sliding part 310 can move to a gear position relative to the first guide groove 210, that is, the pupil distance of the lens device is adjusted to a certain gear position.

[0067] It can be understood that, in positions other than the shift position, the first lens barrel 200 and the second lens barrel 300 may not be symmetrically arranged relative to the central axis surface 110 of the mounting bracket 100, thereby simplifying the structure and design of the first guide groove.

[0068] In addition, a snap-fit ​​structure for reminding the user that the gear position has been reached may be provided between the first lens barrel 200 and the mounting bracket 100. For example, the first lens barrel 200 may be provided with a snap-fit ​​groove, and the mounting bracket 100 may be provided with a protrusion. When the first lens barrel 200 moves to the first adjustment point, the snap-fit ​​groove may be engaged with the protrusion, thereby generating a sound to remind the user. Similarly, a snap-fit ​​structure for reminding the user that the gear position has been reached may also be provided between the second lens barrel 300 and the mounting bracket 100, which will not be described in detail.

[0069] In some embodiments, during the movement of the first lens barrel 200 and the second lens barrel 300 relative to the mounting bracket 100 , the center of the first lens barrel 200 and the center of the second lens barrel 300 are symmetrically arranged relative to the central axis plane 110 of the mounting bracket.

[0070] It can be understood that in the present embodiment, the pupil distance can be adjusted steplessly, that is, the first lens barrel 200 can stop at any position of its trajectory, and by setting the extension direction (shape) of the first guide groove 210, for example, the first guide groove 210 extends along a curved direction, the first lens barrel 200 and the second lens barrel 300 can always be kept symmetrically arranged, so that the movement of the two can be synchronized, making the pupil distance adjustment of the lens device more flexible, so that it can be suitable for users with various pupil distance sizes, thereby improving the versatility of the lens device.

[0071] In addition, it can be understood that both the step-by-step adjustment and the stepless adjustment in the above embodiments can be achieved by designing the shape of the first guide groove, and the shape of the first guide groove can be obtained by reverse engineering or motion simulation.

[0072] In some embodiments, reference Figure 4 A second guide groove 120 extending along an arc direction is provided on the mounting bracket 100, and the sliding portion 310 is movably connected to the second guide groove 120. When the second lens barrel 300 moves relative to the mounting bracket 100, the sliding portion 310 can move in the second guide groove 120 along an arc direction.

[0073] In some embodiments, the mounting bracket may include a plate-like structure, the first lens barrel 200 and the second lens barrel 300 may be disposed on the plate-like structure, and a boss may be disposed on the plate-like structure between the first lens barrel 200 and the second lens barrel 300, and the second guide groove 120 may be disposed on the boss.

[0074] It can be understood that the second guide groove 120 can extend in the direction of an arc, the center of the arc is the position of the second rotating part 330, and the radius of the arc is the distance between the second rotating part 330 and the sliding part 310. The sliding part 310 can be slidably arranged in the second guide groove 120, that is, it moves along the arc direction of the second guide groove 120. In addition, during the movement, the sliding part 310 can also contact the groove wall of the second guide groove 120, so as to play an auxiliary guiding role and improve the movement stability of the sliding part 310.

[0075] In some embodiments, a first support portion 220 is provided on the outer surface of the first lens barrel 200, and a first guide groove 210 is provided in the first support portion 220; a second support portion 320 is provided on the outer surface of the second lens barrel 300, and a sliding portion 310 is provided at one end of the second support portion 320 away from the outer surface of the second lens barrel 300, and the second support portion 320 is located on the side of the first support portion 220 away from the mounting bracket 100.

[0076] The first support portion 220 may be a frame structure or a plate structure, which may be disposed outside the barrel wall of the first lens barrel 200 and may protrude toward the second lens barrel 300, and the first guide groove 210 may be disposed in the first support portion 220. The second support portion 320 may also be a frame structure or a plate structure, which may be disposed outside the barrel wall of the second lens barrel 300 and may protrude toward the first lens barrel 200, and the sliding portion 310 may be disposed at the outer end of the second support portion 320 away from the second lens barrel 300, so that the sliding portion 310 may be located in the first guide groove 210 and the second guide groove 120 at the same time.

[0077] like Figure 1The first support portion 220 may be located between the second guide groove 120 and the second support portion 320 , and the sliding portion 310 may be a long rod structure, which may simultaneously pass through the first guide groove 210 and extend into the second guide groove 120 .

[0078] In other embodiments, the first support portion 220 and the second guide groove 120 may be located on both sides of the second support portion 320 , respectively, and both ends of the sliding portion 310 may extend into the first guide groove 210 and the second guide groove 120 , respectively.

[0079] By staggering the first support portion 220 and the second support portion 320 , interference between the two during movement can be avoided, thereby improving the reliability of movement.

[0080] In some embodiments, the second support portion 320 is provided with a cylindrical hole, and the sliding portion 310 includes a pin shaft 311 , and the pin shaft 311 is passed through the cylindrical hole.

[0081] The pin 311 is a cylindrical structure, which can be installed on the second support part 320 through a cylindrical hole. The pin 311 can reduce the resistance of its movement in the first guide groove 210 and the second guide groove 120, so that the pupil distance adjustment is smoother.

[0082] In some embodiments, during the movement of the first lens barrel 200 relative to the mounting bracket 100 , the orthographic projection of the first supporting portion 220 on the mounting bracket 100 and the orthographic projection of the second supporting portion 320 on the mounting bracket 100 are both located inside the mounting bracket 100 .

[0083] Please refer to Figure 2 and Figure 3 By adjusting the size of the first support portion 220 and the second support portion 320, during the entire pupil distance adjustment process, the first support portion 220 and the second support portion 320 are both located within the outer contour of the mounting bracket 100, that is, they do not protrude outward from the mounting bracket 100, thereby making full use of the narrow space between the first lens barrel 200 and the second lens barrel 300.

[0084] In some embodiments, Figures 1 to 3The first lens barrel 200 includes a first barrel body 201 and a second flange 202 connected to the outer circumferential surface of the first barrel body 201. The second flange 202 can be arranged perpendicular to the axial direction of the first barrel body 201. The second flange 202 is arranged near one end of the first lens barrel 200 facing the mounting bracket 100. A first rotating portion 230 is arranged on the side of the second flange 202 facing the first direction. The first rotating portion 230 can be rotatably connected to the mounting bracket 100; a first sliding hole 240 is also arranged on the side of the second flange 202 away from the first direction. The mounting bracket 100 is provided with a first connecting portion 130, and the first connecting portion 130 passes through the first sliding hole 240. When the first lens barrel 200 rotates relative to the mounting bracket 100 through the first rotating portion 230, the first connecting portion 130 can move in the first sliding hole 240.

[0085] The first direction can be Figure 2 In the bottom-to-top direction, the first rotating portion 230 can be located at the top of the first lens barrel 200, and the corresponding first sliding hole 240 can be provided at the bottom of the first lens barrel 200. The first lens barrel 200 can rotate relative to the mounting bracket 100 by relying on the first rotating portion 230.

[0086] The first sliding hole 240 may be an arc hole, and the center of the circle may be the position where the first rotating part 230 is located.

[0087] The mounting bracket 100 is provided with a first connecting portion 130, which may be a connecting shaft provided on the mounting bracket 100, and the connecting shaft may be provided with a first sliding hole 240, or the first connecting portion 130 may be a bolt, which may pass through the first sliding hole 240 and be screwed to the mounting bracket 100, and the tightening force of the bolt may provide damping to the first lens barrel 200, so that the first lens barrel 200 may stay at any position of the track. Of course, in other embodiments, damping may also be provided by the first rotating portion 230.

[0088] When the first lens barrel 200 rotates, the first connecting portion 130 can slide relative to the first sliding hole 240 , so that the movement of the first lens barrel 200 is more stable.

[0089] In some embodiments, the first connecting portion 130 includes a first connecting body 131 and a second connecting body 132 that are spaced apart from each other. The first connecting body 131 and the second connecting body 132 are respectively used to define the end points of a trajectory of the first lens barrel 200 rotating relative to the mounting bracket 100 .

[0090] It can be understood that the first connecting portion 130 may include a first connecting body 131 and a second connecting body 132 both of which are penetrated by a first sliding hole 240. The specific structures of the first connecting body 131 and the second connecting body 132 can refer to the above-mentioned embodiments of the first connecting portion 130 and the first sliding hole 240 and will not be repeated here.

[0091] like Figure 2 The first connecting body 131 is located at the left end of the second connecting body 132. When the first connecting body 131 abuts against the right end of the first sliding hole 240, the first lens barrel 200 cannot continue to rotate in the clockwise direction relative to the mounting bracket 100, that is, the second connecting body 132 defines the clockwise end point of the rotation trajectory of the first lens barrel 100, that is, the pupil distance is adjusted to the maximum position.

[0092] like Figure 3 When the first connecting body 131 abuts against the left end of the first sliding hole 240, the first lens barrel 200 cannot continue to rotate counterclockwise relative to the mounting bracket 100, that is, the first connecting body 131 defines the counterclockwise end point of the rotation trajectory of the first lens barrel 100, that is, the pupil distance is adjusted to the minimum position.

[0093] The maximum position and the minimum position of the pupil distance adjustment can be defined by the first connector 131 and the second connector 132, and the structure is simple.

[0094] In some embodiments, the second lens barrel 300 includes a second barrel body 301 and a fourth flange 302 connected to the outer circumference of the second barrel body 301, the fourth flange 302 is arranged near one end of the second barrel body 302 facing the mounting bracket 100, and a second rotating portion 330 is arranged on the side of the fourth flange 302 facing the first direction, and the second rotating portion 330 can be rotatably connected to the mounting bracket 100. A second sliding hole 340 is arranged on the side of the fourth flange 302 facing away from the first direction, and a second connecting portion 140 is arranged on the mounting bracket 100, and the second connecting portion 140 penetrates the second sliding hole 340. When the second lens barrel 300 rotates relative to the mounting bracket 100 through the second rotating portion 330, the second connecting portion 140 can move in the second sliding hole 340.

[0095] When the second lens barrel 300 rotates, the second connecting portion 140 can slide relative to the second sliding hole 340 , so that the movement of the second lens barrel 300 is more stable.

[0096] In addition, the second connecting portion 140 may also include a third connecting body and a fourth connecting body that are spaced apart from each other. The third connecting body and the fourth connecting body are respectively used to define the end points of the trajectory of the second lens barrel 300 rotating relative to the mounting bracket 100 .

[0097] The structures and functions of the second sliding hole 340, the second connecting part 140, the third connecting body and the fourth connecting body are respectively the same or similar to the first sliding hole 240, the first connecting part 130, the first connecting body and the second connecting body in the above embodiments. For details, please refer to the above embodiments and no further details will be given.

[0098] In some embodiments, continue to refer to Figure 4 A first mounting seat 150 and a second mounting seat 160 are provided on the mounting bracket 100, the first lens barrel 200 is movably connected to the first mounting seat 150, and the second lens barrel 300 is movably connected to the second mounting seat 160; taking the dimension in a direction perpendicular to the mounting bracket 100 as the height, the height of the first mounting seat 150 is less than the height of the second mounting seat 160, and the sum of the height of the first mounting seat 150 and the height of the first lens barrel 200 is equal to the sum of the height of the second mounting seat 160 and the height of the second lens barrel 300.

[0099] The first mounting seat 150 may also be a cylindrical structure, which may protrude from the mounting bracket 100, the first lens barrel 200 may be mounted upside down on the first mounting seat 150, the top end of the first mounting seat 150 facing away from the mounting bracket 100 may have a first flange, the edge of the first lens barrel 200 facing the first mounting seat 150 may also be provided with a second flange 202, the first rotating portion 230 may be provided on the second flange 202, the first flange may be fitted with the second flange 202, and the first lens barrel 200 may be rotatably connected to the first mounting seat 150 via the first rotating portion.

[0100] The second mounting seat 160 may also be a cylindrical structure, which may protrude from the mounting bracket 100, the second lens barrel 300 may be mounted upside down on the second mounting seat 160, the top end of the second mounting seat 160 facing away from the mounting bracket 100 may have a third flange, the edge of the second lens barrel 300 facing the second mounting seat 160 may also be provided with a fourth flange 302, the second rotating portion 330 may be provided on the fourth flange 302, the third flange may be fitted with the fourth flange 302, and the second lens barrel 300 may be rotatably connected to the second mounting seat 160 via the second rotating portion.

[0101] The height can be Figure 2 In terms of the dimension perpendicular to the paper direction, the first mounting seat 150 may be smaller than the second mounting seat 160 , so that the first supporting portion 220 may be located between the second supporting portion 320 and the second guide groove 120 .

[0102] The height of the second lens barrel 300 is less than that of the first lens barrel 200, so that the sum of the height of the first mounting seat 150 and the height of the first lens barrel 200 is equal to the sum of the height of the second mounting seat 160 and the height of the second lens barrel 300, so that the lenses installed in the lens barrels can be at the same height, and the second flange of the first lens barrel 200 and the fourth flange of the second lens barrel 300 can be staggered with each other to avoid movement interference between the two.

[0103] An embodiment of the present application provides a head-mounted display device, comprising: a housing and a lens device; the lens device is installed in the housing.

[0104] Among them, head-mounted display devices can be applied to various application scenarios such as extended reality (XR), virtual reality (VR), augmented reality (AR), and mixed reality (MR).

[0105] The housing may be a shell made of metal or plastic, and the lens device may be installed in the housing. The structure and function of the lens device are the same as those of the above embodiment, and the details may refer to the description of each of the above embodiments.

[0106] The head-mounted display device provided by the embodiment of the present application is provided with a mounting bracket, a first lens barrel and a second lens barrel, the first lens barrel is movably connected to the mounting bracket, and a first guide groove is provided on the first lens barrel; the second lens barrel is movably connected to the mounting bracket, and a sliding portion is provided on the inner side of the second lens barrel facing the first lens barrel, and the sliding portion is movably connected to the first guide groove; when one of the first lens barrel and the second lens barrel moves relative to the mounting bracket along the first movement direction, the sliding portion can move relative to the first guide groove along the extension direction of the first guide groove, thereby driving the other of the first lens barrel and the second lens barrel to move relative to the mounting bracket along the second movement direction, thereby making the first lens barrel and the second lens barrel approach each other or move away from each other, wherein the second movement direction is opposite to the first movement direction, thereby realizing the adjustment of the pupil distance, and the structure is simple, small in space occupation, low in cost, light in weight, which is conducive to reducing the volume of the head-mounted display device.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0109] In addition, the terms "first", "second", etc. used in the embodiments of the present application are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present application can explicitly or implicitly indicate that at least one of the features is included in the embodiment. In the description of the present application, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0110] In this application, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific implementation situation.

[0111] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claim.

Claims

1. A lens device for a head-mounted display device, characterized in that: include: Mounting bracket; A first lens barrel is movably connected to the mounting bracket, and the first lens barrel includes a first guide groove; A second lens barrel is movably connected to the mounting bracket, and a sliding portion is provided on a side of the second lens barrel facing the first lens barrel, and the sliding portion is movably connected to the first guide groove; When one of the first lens barrel and the second lens barrel moves relative to the mounting bracket along a first movement direction, the sliding portion can move relative to the first guide groove along an extension direction of the first guide groove, thereby driving the other of the first lens barrel and the second lens barrel to move relative to the mounting bracket along a second movement direction, thereby making the first lens barrel and the second lens barrel approach each other or move away from each other, wherein the second movement direction is opposite to the first movement direction.

2. The lens device according to claim 1, characterized in that During the movement of the first lens barrel and the second lens barrel relative to the mounting bracket, the trajectory of the first lens barrel has a plurality of first adjustment points, the trajectory of the second lens barrel has a plurality of second adjustment points respectively corresponding to the plurality of first adjustment points, and when the first lens barrel is located at the first adjustment point and the second lens barrel is located at the corresponding second adjustment point, the center of the first lens barrel and the center of the second lens barrel are symmetrically arranged relative to the central axis plane of the mounting bracket.

3. The lens device according to claim 1, characterized in that During the movement of the first lens barrel and the second lens barrel relative to the mounting bracket, the center of the first lens barrel and the center of the second lens barrel are symmetrically arranged relative to the central axis plane of the mounting bracket.

4. The lens device according to claim 1, characterized in that: The mounting bracket is provided with a second guide groove extending along an arc direction, the sliding part is movably connected to the second guide groove, and when the second lens barrel moves relative to the mounting bracket, the sliding part can move in the second guide groove along the arc direction.

5. The lens device according to any one of claims 1 to 4, characterized in that: The outer surface of the first lens barrel is provided with a first supporting portion, and the first guiding groove is provided in the first supporting portion; The outer surface of the second lens barrel is provided with a second supporting portion, an end of the second supporting portion away from the outer surface of the second lens barrel is provided with the sliding portion, and the second supporting portion is located on a side of the first supporting portion away from the mounting bracket.

6. The lens device according to claim 5, characterized in that The second supporting portion is provided with a cylindrical hole, and the sliding portion includes a pin shaft, and the pin shaft is passed through the cylindrical hole.

7. The lens device according to claim 5, characterized in that: During the movement of the first lens barrel relative to the mounting bracket, the orthographic projection of the first supporting portion on the mounting bracket and the orthographic projection of the second supporting portion on the mounting bracket are both located inside the mounting bracket.

8. The lens device according to any one of claims 1 to 4, characterized in that: The first lens barrel comprises a first barrel and a second flange connected to the outer circumferential surface of the first barrel, the second flange is arranged close to one end of the first barrel facing the mounting bracket, a first rotating part is arranged on one side of the second flange facing the first direction, and the first rotating part is rotatably connected to the mounting bracket; A first sliding hole is provided on the side of the second flange facing away from the first direction, and a first connecting portion is provided on the mounting bracket. The first connecting portion passes through the first sliding hole. When the first lens barrel rotates relative to the mounting bracket through the first rotating portion, the first connecting portion can move in the first sliding hole.

9. The lens device according to claim 8, characterized in that: The first connecting portion includes a first connecting body and a second connecting body which are spaced apart from each other. The first connecting body and the second connecting body are respectively used to define end points of a trajectory of the first lens barrel rotating relative to the mounting bracket.

10. The lens device according to claim 8, characterized in that The second lens barrel comprises a second barrel and a fourth flange connected to the outer circumferential surface of the second barrel, the fourth flange is arranged close to one end of the second barrel facing the mounting bracket, a second rotating portion is arranged on one side of the fourth flange facing the first direction, and the second rotating portion is rotatably connected to the mounting bracket; A second sliding hole is provided on the side of the fourth flange facing away from the first direction, and a second connecting portion is provided on the mounting bracket. The second connecting portion passes through the second sliding hole. When the second lens barrel rotates relative to the mounting bracket through the second rotating portion, the second connecting portion can move in the second sliding hole.

11. The lens device according to any one of claims 1 to 4, characterized in that: The mounting bracket is provided with a first mounting seat and a second mounting seat, the first lens barrel is movably connected to the first mounting seat, and the second lens barrel is movably connected to the second mounting seat; Taking the dimension in a direction perpendicular to the mounting bracket as the height, the height of the first mounting seat is less than the height of the second mounting seat, and the sum of the height of the first mounting seat and the height of the first lens barrel is equal to the sum of the height of the second mounting seat and the height of the second lens barrel.

12. A head mounted display device, characterized in that: include: A housing and a lens device as claimed in any one of claims 1 to 11; The lens device is installed in the housing.

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