Lens barrel device and head-mounted display equipment

Abstract

The invention discloses a lens cone device and head-mounted display equipment, the lens cone device is arranged in the head-mounted display equipment, the lens cone device comprises a main body, a first lens cone, a second lens cone and a transmission assembly, and the main body is provided with a first sliding groove extending along a first direction; the first lens barrel is rotatably connected to the main body; the second lens cone is rotatably connected to the main body, and the first lens cone and the second lens cone are arranged at an interval along a second direction perpendicular to the first direction; the transmission assembly is connected with the first lens cone and the second lens cone, and the transmission assembly comprises a sliding part which is movably connected to the first sliding groove in the first direction. The transmission assembly is used for converting the rotation of the first lens cone relative to the main body in the first rotation direction into the movement of the sliding part along the first sliding groove and converting the movement of the sliding part along the first sliding groove into the rotation of the second lens cone relative to the main body in the second rotation direction, so that the first lens cone and the second lens cone get close to each other or get away from each other. Therefore, interpupillary distance adjustment is realized.

Description

Technical Field

[0001] This application belongs to the technical field of three-dimensional display, and particularly relates to a lens barrel device and a head-mounted display device. Background Art

[0002] A head-mounted display device is a wearable intelligent device that uses optical technology to guide the video image light emitted by a micro-image display to the user's pupil, and realizes virtual and magnified images in the near-eye range of the user, providing the user with intuitive, visible image, video, and text information.

[0003] The head-mounted display device is provided with two left and right lens barrels, corresponding to the user's left eye and right eye respectively, and the user can view the content displayed on the display screen through the lenses in the lens barrels.

[0004] However, in the related art, the interpupillary distance of the head-mounted display device cannot be adjusted, resulting in blurred images seen by the user and poor user experience. Summary of the Invention

[0005] Embodiments of this application provide a lens barrel device and a head-mounted display device to solve the problem that the interpupillary distance of the head-mounted display device in the related art cannot be adjusted.

[0006] In a first aspect, embodiments of this application provide a lens barrel device for a head-mounted display device, including: a main body, a first lens barrel, a second lens barrel, and a transmission component; the main body has a first sliding groove extending in a first direction; the first lens barrel is rotatably connected to the main body; the second lens barrel is rotatably connected to the main body, and the first lens barrel and the second lens barrel are arranged at intervals in a second direction perpendicular to the first direction; the transmission component is connected to the first lens barrel and the second lens barrel, and the transmission component includes a sliding part movably connected to the first sliding groove in the first direction; the transmission component is configured to convert the rotation of the first lens barrel relative to the main body in a first rotation direction into the movement of the sliding part along the first sliding groove, and convert the movement of the sliding part along the first sliding groove into the rotation of the second lens barrel relative to the main body in a second rotation direction, so that the first lens barrel and the second lens barrel approach or move away from each other; wherein, the first rotation direction is opposite to the second rotation direction.

[0007] In a second aspect, embodiments of this application provide a head-mounted display device, including: a housing and the lens barrel device according to any one of the above; the lens barrel device is installed in the housing.

[0008] The lens barrel device and the head-mounted display device provided by the embodiments of the present application are provided with a main body, a first lens barrel, a second lens barrel and a transmission component; the main body has a first sliding groove extending in a first direction; the first lens barrel is rotatably connected to the main body; the second lens barrel is rotatably connected to the main body, and the first lens barrel and the second lens barrel are arranged at intervals in a second direction perpendicular to the first direction; the transmission component is connected to the first lens barrel and the second lens barrel, and the transmission component includes a sliding part movably connected to the first sliding groove along the first direction; the transmission component is used to convert the rotation of the first lens barrel relative to the main body in a first rotation direction into the movement of the sliding part along the first sliding groove, and convert the movement of the sliding part along the first sliding groove into the rotation of the second lens barrel relative to the main body in a second rotation direction, so that the first lens barrel and the second lens barrel approach or separate from each other, thereby realizing the adjustment of the interpupillary distance, enabling the user to see a clear image and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0010] Figure 1 is a three-dimensional schematic diagram of a lens barrel device provided by an embodiment of the present application;

[0011] Figure 2 is Figure 1 the front view of

[0012] Figure 3 is Figure 1 the structural schematic diagram of the sliding part in

[0013] Figure 4 is Figure 1 the structural schematic diagram of the main body in

[0014] Figure 5 is a three-dimensional schematic diagram of a lens barrel device provided by an embodiment of the present application;

[0015] Figure 6 is Figure 5 the front view of

[0016] Figure 7 is Figure 5 the structural schematic diagram of the main body in

[0017] Figure 8 is Figure 5 the structural schematic diagram of the first transmission part in

[0018] Figure 9For Figure 5 The structural schematic diagram of the second transmission member in

[0019] 100: Main body; 110: First sliding groove;

[0020] 121: Plate body; 122: First side plate;

[0021] 123: Second side plate; 124: Annular vertical plate;

[0022] 130: First connecting portion; 131: First connecting body;

[0023] 132: Second connecting body; 140: Second connecting portion;

[0024] 150: First mounting seat; 160: Second mounting seat;

[0025] 200: First lens barrel; 210: First moving portion;

[0026] 220: First supporting portion; 230: First rotating portion;

[0027] 240: First sliding hole; 300: Second lens barrel;

[0028] 310: Second moving portion; 320: Second supporting portion;

[0029] 330: Second rotating portion; 340: Second sliding hole;

[0030] 400: Transmission assembly; 410: Sliding member;

[0031] 411: Second sliding groove; 412: Mounting portion;

[0032] 420: Sliding portion; 430: First transmission member;

[0033] 431: First plate body; 432: First through hole;

[0034] 433: Second through hole; 440: Second transmission member;

[0035] 441: Second plate body; 442: Third through hole;

[0036] 443: Protrusion portion; 444: Connecting shaft. Detailed implementation manners

[0037] The embodiments of the present application will be described in detail below. The 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 explain the present application, and should not be construed as a limitation to the present application.

[0038] It should be understood that the various steps described in the method embodiments of the present disclosure may be executed 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 regard.

[0039] As used herein, the term "comprising" and its variations are open-ended, that is, "including but not limited to". The term "based on" means "at least partially based 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.

[0040] 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 of functions performed by these devices, modules or units or their interdependent relationships.

[0041] It should be noted that the modifications of "one" and "plural" mentioned in this application are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0042] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0043] The embodiments of this application can be applied to various application scenarios such as Extended Reality (XR), Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR).

[0044] First, some nouns or terms that appear in the process of describing the embodiments of this application are explained as follows:

[0045] Extended Reality (XR) is a concept that includes Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR), representing an environment where the virtual world is connected to the real world and users can interact with this environment in real time.

[0046] Virtual Reality (VR) is a technology for creating and experiencing virtual worlds. It computationally generates a virtual environment, which is a multi-source information (the VR mentioned in this article includes at least visual perception, and may also include auditory perception, tactile perception, motion perception, and even taste perception, olfactory perception, etc.). It realizes the fusion of virtual environments, an interactive three-dimensional dynamic visual scene, and the simulation of entity behaviors, enabling users to immerse themselves in the simulated virtual reality environment and realizing applications in various virtual environments such as maps, games, videos, education, medical treatment, simulation, collaborative training, sales, assisting manufacturing, maintenance, and repair.

[0047] Augmented Reality (AR) is a technology that, during the process of a camera capturing images, calculates the camera pose parameters of the camera in the real world (or three-dimensional world, real world) in real time, and adds virtual elements to the images captured by the camera according to the camera pose parameters. Virtual elements include, but are not limited to: images, videos, and three-dimensional models. The goal of AR technology is to interact by overlaying the virtual world on the real world on the screen.

[0048] Mixed Reality (MR) is a simulated scene that integrates computer-created sensory inputs (such as virtual objects) with sensory inputs from a physical setting or their representations. In some MR settings, the computer-created sensory inputs can adapt to changes in the sensory inputs from the physical setting. Additionally, some electronic systems for presenting 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 motion so that a virtual plant appears stationary relative to a physical building.

[0049] Augmented Virtuality (AV), an AV setting refers to a simulated scene in which a computer-created setting or virtual setting incorporates at least one sensory input from a physical setting. One or more sensory inputs from the physical setting can be representations of at least one feature of the physical setting. For example, a virtual object can present the color of a physical element captured by one or more imaging sensors. Another example is that a virtual object can present features consistent with the actual weather conditions in the physical setting, such as identified via weather-related imaging sensors and / or online weather data. In another example, an augmented reality forest can have virtual trees and structures, but animals can have features precisely reproduced from images of physical animals.

[0050] The virtual field of view refers to the area in the virtual environment that a user can perceive through a lens in a virtual reality device. The field of view angle (Field Of View, FOV) of the virtual field of view is used to represent the perceived area.

[0051] A virtual reality device is a terminal that realizes virtual reality effects. It can usually be provided in the form of glasses, a head-mounted display (Head Mount Display, HMD), or contact lenses for visual perception and other forms of perception. Of course, the form of the virtual reality device is not limited to this, and it can be further miniaturized or enlarged according to needs.

[0052] In related technologies, there are two left and right lens barrels in a head-mounted display device, and a lens is installed in each lens barrel, corresponding to a person's left eye and right eye respectively. However, the interpupillary distance of the head-mounted display device in related technologies cannot be adjusted, that is, the distance between the centers of the two lens barrels cannot be changed. Since the interpupillary distances of different people are different, there are differences between men and women, the young and the old, and different ethnic groups. If the interpupillary distance cannot be adjusted, a blurry feeling will occur visually, affecting the user experience. In order to better improve the user experience, the function of adjusting the interpupillary distance of the head-mounted display device is more important.

[0053] To solve at least one of the above problems, an embodiment of the present application provides a lens barrel device and a head-mounted display device. By setting a main body, a first lens barrel, a second lens barrel, and a transmission component; the main body has a first sliding groove extending in a first direction; the first lens barrel is rotatably connected to the main body; the second lens barrel is rotatably connected to the main body, and the first lens barrel and the second lens barrel are spaced apart in a second direction perpendicular to the first direction; the transmission component is connected to the first lens barrel and the second lens barrel, and the transmission component includes a sliding part movably connected to the first sliding groove in the first direction; the transmission component is used to convert the rotation of the first lens barrel relative to the main body in a first rotation direction into the movement of the sliding part along the first sliding groove, and convert the movement of the sliding part along the first sliding groove into the rotation of the second lens barrel relative to the main body in a second rotation direction, so that the first lens barrel and the second lens barrel approach or move away from each other, thereby realizing the adjustment of the interpupillary distance, enabling the user to see a clear image, and improving the user experience.

[0054] The technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail below with specific embodiments. These specific embodiments below 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 with reference to the drawings.

[0055] Figure 1 A three-dimensional schematic diagram of the lens barrel device provided by an embodiment of the present application; Figure 2 For Figure 1 front view;Figure 3 is Figure 1 a schematic structural view of the sliding member in Figure 4 is Figure 1 a schematic structural view of the main body in

[0056] Please refer to Figures 1 to 4 , the embodiment of the present application provides a lens barrel device, which can be used in a head-mounted display device, and the head-mounted display device can be a VR device, an AR device, an XR device, an MR device, etc.

[0057] The lens barrel device includes: a main body 100, a first lens barrel 200, a second lens barrel 300, and a transmission component 400. The main body 100 has a first sliding groove 110 extending along a first direction; the first lens barrel 200 is rotatably connected to the main body 100; the second lens barrel 300 is rotatably connected to the main body 100, and the first lens barrel 200 and the second lens barrel 300 are arranged at intervals along a second direction perpendicular to the first direction; the transmission component 400 is connected to the first lens barrel 200 and the second lens barrel 300, and the transmission component 400 includes a sliding portion 420 movably connected to the first sliding groove 110 along the first direction; the transmission component 400 is configured to convert the rotation of the first lens barrel 200 relative to the main body 100 along a first rotation direction into the movement of the sliding portion 420 along the first sliding groove 110, and convert the movement of the sliding portion 420 along the first sliding groove 110 into the rotation of the second lens barrel 300 relative to the main body 100 along a second rotation direction, so that the first lens barrel 200 and the second lens barrel 300 approach or move away from each other; wherein, the first rotation direction is opposite to the second rotation direction.

[0058] Wherein, the first direction is the up and down direction along Figure 2 , and the second direction is Figure 2 the left and right direction in Figure 2 . The first direction and the second direction are perpendicular to each other. And when the main body is a plate-like structure, both the first direction and the second direction can be parallel to the main body 100. The first rotation direction can be

[0059] the clockwise direction or the counterclockwise direction in

[0060] The main body 100 can play a supporting role and can be made of materials such as metal and plastic. The main body 100 can be provided with a first sliding groove 110, and the first sliding groove 110 extends along the first direction.

[0061] It can be understood that the center of the first lens barrel 200 can be the center point of the first lens barrel 200 for 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 for facing the user's pupil. The interpupillary distance adjustment can be understood as adjusting the distance between the first lens barrel 200 and the second lens barrel 300 along Figure 2 the left-right direction in Figure 2 , that is, adjusting the distance between the center of the first lens barrel 200 and the center of the second lens barrel 300.

[0062] Taking the first lens barrel 200 as an example, the first lens barrel 200 is rotatably connected to the main body 100, and the center of this rotation deviates from the center of the first lens barrel 200. Thus, during the process of the first lens barrel 200 rotating relative to the main body 100, the center of the first lens barrel 200 can change its position relative to the main body 100, thereby realizing the adjustment of the interpupillary distance. There can be various ways to achieve the rotation between the two. For example, Figure 1 in Figure 1 , a first rotating part 230 can be provided at the top of the first lens barrel 200. The first rotating part 230 can be a rotating hole, and the main body 100 can be provided with a rotating shaft, and the rotating shaft can pass through the rotating hole, thereby realizing the relative rotation between the two. Or, the first rotating part 230 can be a rotating shaft, and a rotating hole can be provided on the main body. Or, the first rotating part 230 can include a first rotating hole, the main body 100 is provided with a second rotating hole, and the rotating shaft can pass through the first rotating hole and the second rotating hole, and so on.

[0063] Similarly, the second lens barrel 300 is rotatably connected to the main body 100, and the rotation mode between the two is the same as that between the first lens barrel 200 and the main body 100. For example, Figure 1 in Figure 1 , a second rotating part 330 can also be provided at the top of the second lens barrel 300. The rotational connection mode between the second rotating part 330 and the main body 100 is the same as or similar to the connection mode between the first rotating part 230 and the main body 100. Specifically, reference can be made to the above embodiments.

[0064] It can be understood that the first rotating part 230 and the second rotating part 330 can both be located on the same side of the main body, such as Figure 2 the upper side in Figure 2 , or, both of them can be located on Figure 2 the lower side of the main body in Figure 2 .

[0065] The transmission component 400 connects the first lens barrel 200 and the second lens barrel 300, and the transmission component 400 further includes a sliding part 420. The sliding part 420 can slide along a first direction in the first sliding groove 110. It can be understood that during the relative movement between the sliding part 420 and the first sliding groove 110, the wall surface of the first sliding groove 110 and the side surface of the sliding part 420 are in contact with each other, so that the sliding part 420 can only move along the extending direction of the first sliding groove 110.

[0066] The shape of the sliding part 420 can be various. For example, its cross-section can be an I-shaped structure, and the first sliding groove 110 can be an I-shaped guide rail. The shape of the sliding part 420 can be cooperatively connected with the shape of the first sliding groove 110 to realize the relative movement between the two. Of course, the sliding part 420 can also be a cuboid or a cylinder, etc.

[0067] The transmission assembly 400 can realize the transmission of motion. When either the first lens barrel 200 or the second lens barrel 300 rotates relative to the main body, the sliding part 420 of the transmission assembly 400 can slide in the first sliding groove 110, so that the other of the first lens barrel 200 and the second lens barrel 300 also rotates relative to the main body, thereby realizing the synchronous rotation of the first lens barrel 200 and the second lens barrel 300.

[0068] When the user needs to adjust the interpupillary 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 main body 100 in the first rotation direction under the action of an external force. If the first rotation direction is Figure 2 the counterclockwise direction in, the transmission assembly 400 can convert this motion into the sliding of the sliding part 420 along the first sliding groove 110. And because the transmission assembly is also connected to the second lens barrel, the relative sliding of the sliding part 420 along the first sliding groove 110 can also be converted by the transmission assembly into the rotation of the second lens barrel relative to the main body 100, so that the second lens barrel can rotate relative to the main body 100 in the second rotation direction, that is, the clockwise direction, so that the two lens barrels can approach each other, thereby reducing the interpupillary distance.

[0069] Conversely, if the user makes the first lens barrel 200 rotate relative to the main body 100 along Figure 2 the clockwise direction in, the transmission assembly 400 can make the second lens barrel 300 rotate relative to the main body 100 in the counterclockwise direction, so that the first lens barrel 200 and the second lens barrel 300 move away from each other, thereby increasing the interpupillary distance.

[0070] In summary, this embodiment can reliably realize the adjustment of the interpupillary distance, so that the center of the user's pupil can be directly opposite or close to the center of the lens, improving the clarity of the image viewed by the user and enhancing the user's viewing experience.

[0071] In some embodiments, the first lens barrel 200 includes a first moving part 210 extending in a direction perpendicular to the main body 100, the second lens barrel 300 includes a second moving part 310 extending in a direction perpendicular to the main body 100, the transmission assembly 400 is respectively connected to the first moving part 210 and the second moving part 310, and the transmission assembly 400, the first sliding groove 110, the first moving part 210 and the second moving part 310 are located between the first lens barrel 100 and the second lens barrel 300.

[0072] The first moving part 210 is located outside the first lens barrel 200 and can extend in a column shape in a direction perpendicular to the main body 100. The second moving part 310 is located outside the second lens barrel 300 and can extend in a column shape in a direction perpendicular to the main body 100.

[0073] In addition, the transmission assembly 400, the first sliding groove 110, the first moving part 210 and the second moving part 310 can all be between the first lens barrel 200 and the second lens barrel 300, so that the narrow space between the first lens barrel 200 and the second lens barrel 300 can be used to achieve the function of adjusting the pupil distance, improve space utilization, and reduce the volume of the lens barrel device.

[0074] In some embodiments, a first supporting portion 220 is provided on the outer surface of the first lens barrel 200, and a first moving portion 210 is provided on the end of the first supporting portion 220 facing away from the outer surface of the first lens barrel 200; a second supporting portion 320 is provided on the outer surface of the second lens barrel 300, and a second moving portion 310 is provided on the end of the second supporting portion 320 facing away from the outer surface of the second lens barrel 300; the distance between the first supporting portion 220 and the main body 100 is smaller than the distance between the second supporting portion 320 and the main body 100.

[0075] 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 moving portion 210 may be disposed at the end of the first support portion 220 away from the first lens barrel 200. 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 second moving portion 310 may be disposed at the end of the second support portion 320 away from the second lens barrel 300.

[0076] There may be various ways of setting the first support portion 220 and the first moving portion 210. For example, the two may be integrally formed, or the first support portion 220 may be provided with a cylindrical hole, and the first moving portion 210 may include a pin shaft passing through the cylindrical hole, and the pin shaft extends in a direction perpendicular to the main body 100.

[0077] Similarly, there can be many ways to set the second support portion 320 and the second moving portion 310. For example, the two can be integrally formed, or the second support portion 320 can be provided with a cylindrical hole, and the second moving portion 310 can include a pin shaft passing through the cylindrical hole, and the pin shaft extends in a direction perpendicular to the main body 100.

[0078] like Figure 1, the first support portion 220 can be located between the main body 100 and the second support portion 320. By staggering the first support portion 220 and the second support portion 320, interference between the two during movement can be avoided, improving the reliability of the movement.

[0079] In some embodiments, during the rotation of the first lens barrel 200 relative to the main body 100, the orthographic projection of the transmission assembly 400 on the main body 100, the orthographic projection of the first support portion 220 on the main body 100, and the orthographic projection of the second support portion 320 on the main body 100 are all located within the main body 100.

[0080] Please refer to Figure 2 , by adjusting the sizes of the first support portion 220 and the second support portion 320, during the entire interpupillary distance adjustment process, both the first support portion 220 and the second support portion 320 are located within the outer contour of the main body 100, that is, they do not protrude outward from the main body 100, making full use of the narrow space between the first lens barrel 200 and the second lens barrel 300 to achieve interpupillary distance adjustment.

[0081] Of course, in some other embodiments, the orthographic projection of the first support portion 220 on the main body 100 and the orthographic projection of the second support portion 320 on the main body 100 may also slightly protrude from the edge of the main body 100. Compared with the method of arranging the transmission assembly on the top of the lens barrel, the occupied space is also smaller, which is beneficial to reducing the volume of the lens barrel device.

[0082] The following explains possible embodiments of the transmission assembly with reference to the accompanying drawings. Please refer to Figures 1 to 4 , in some embodiments, the transmission assembly 400 includes a sliding member 410. The sliding member 410 includes a sliding portion 420 and a mounting portion 412 connected to the sliding portion 420. The mounting portion 412 is provided with a second sliding groove 411 extending in the second direction; the first moving portion 210 is movably connected to the second sliding groove 411 in the second direction, and the second moving portion 310 is movably connected to the second sliding groove 411 in the second direction.

[0083] The mounting portion 412 can be connected to the side of the sliding portion 420 facing away from the main body 100. It can be a block structure. The second sliding groove 411 is provided in the mounting portion 412. The second sliding groove 411 extends in the second direction. It can be a structure with an open top and a closed perimeter.

[0084] The first moving part 210 can be slidably disposed in the second sliding groove 411, so that the first moving part 210 can move relative to the second sliding groove 411 in the second direction. And during the movement, the side surface of the first moving part 210 can keep in contact with the inner wall of the second sliding groove 411, and there is an interaction force between them. There can be various ways of sliding connection between the first moving part 210 and the second sliding groove 411. For example, the first moving part 210 can be a slider, and the second sliding groove 411 can be a slide rail structure, and the slider can slide on the slide rail. The shape of the slider can also be various, such as rectangular, wedge-shaped or I-shaped, etc.

[0085] Similarly, the second moving part 310 can be slidably disposed in the second sliding groove 411, so that the second moving part 310 can move relative to the second sliding groove 411 in the second direction. And during the movement, the side surface of the second moving part 310 can keep in contact with the inner wall of the second sliding groove 411, and there is an interaction force between them. There can be various ways of sliding connection between the second moving part 310 and the second sliding groove 411. For example, the second moving part 310 can be a slider, and the second sliding groove 411 can be a slide rail structure, and the slider can slide on the slide rail. The shape of the slider can also be various, such as rectangular, wedge-shaped or I-shaped, etc.

[0086] It can be understood that the first direction and the second direction refer to linear directions and do not carry directionality. Taking the left and right directions in Figure 2 as an example of the second direction, the first moving part 210 moving relative to the second sliding groove 411 in the second direction can mean that the first moving part 210 moves left or right relative to the second sliding groove 411. Similarly, the second moving part 310 moving relative to the second sliding groove 411 in the second direction can mean that the second moving part 310 moves left or right relative to the second sliding groove 411. During the pupil distance adjustment process, the moving directions of the first moving part 210 and the second moving part 310 relative to the second sliding groove 411 are opposite. For example, the first moving part 210 moves left relative to the second sliding groove 411, and the second moving part 310 moves right relative to the second sliding groove 411.

[0087] 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 main body 100 in the first rotation direction under the action of an external force. If the first rotation direction is Figure 2Taking the counterclockwise direction in [description] as an example, the first moving part 210 will also rotate around the first rotating part 230 with the first lens barrel 200. Since the first moving part 210 is slidably arranged in the second sliding groove 411, the first moving part 210 will apply a tangential force to the second sliding groove 411. This force can have a first component force in the first direction and a second component force in the second direction. The first component force can cause the sliding part 420 to slide upward in the first direction relative to the first sliding groove 110, and the second component force can cause the first moving part 210 to move to the right in the second direction relative to the second sliding groove 411.

[0088] Since the sliding part 420 moves in the first sliding groove 110, the second sliding groove 411 will also apply a force to the second moving part 310, causing the second moving part 310 to move to the left in the second direction relative to the second sliding groove 411, and further causing the second lens barrel 300 to rotate relative to the main body 100 in the second rotation direction, that is, rotate in the clockwise direction, and further causing the first lens barrel 200 and the second lens barrel 300 to approach each other, thereby reducing the interpupillary distance.

[0089] Conversely, if the user makes the first lens barrel 200 rotate relative to the main body 100 in the Figure 2 clockwise direction in [description], it can cause the second lens barrel 300 to rotate relative to the main body 100 in the counterclockwise direction, so that the first lens barrel 200 and the second lens barrel 300 move away from each other, thereby increasing the interpupillary distance.

[0090] The transmission component of this embodiment has a simple structure. Only one sliding part needs to be set to realize the adjustment of the interpupillary distance, which can reduce the cost. At the same time, the transmission component can be located at the position between the first lens barrel 200 and the second lens barrel 300, occupying a small space and having a high space utilization rate. More space can be reserved for other electronic devices, so that the volume of the lens barrel device can be reduced, which is beneficial to the miniaturization of the lens barrel device, and further the volume and weight of the head-mounted display device can be reduced.

[0091] In some embodiments, taking the cross-section parallel to the main body 100 as the cross-section, the cross-sectional area of the sliding part 420 increases from the end close to the mounting part 412 to the end far from the mounting part 412; and the first sliding groove 110 is connected with the sliding part 420 in a shape-matching manner.

[0092] As Figure 3 , the sliding part 420 can be a wedge-shaped structure that is narrow at the top and wide at the bottom. The shape of the first sliding groove 110 is the same as that of the sliding part 420, so that the sliding part 420 can be exactly installed in the first sliding groove, and the sliding part 420 is not easy to escape from the first sliding groove, and the reliability is high.

[0093] Please refer to Figure 4, in some embodiments, the main body 100 includes a plate body 121, a first side plate 122 and a second side plate 123 that are spaced apart along the second direction. The first side plate 122 and the second side plate 123 are connected to the plate body 121, and both the first side plate 122 and the second side plate 123 extend along the first direction; the first side plate 122, the second side plate 123 and the plate body 121 located between the first side plate 122 and the second side plate 123 form a first sliding groove 110.

[0094] The plate body 121 can be a flat plate-like structure. Both the first side plate 122 and the second side plate 123 can be inclined relative to the plate body 121 to form a wedge-shaped structure that is narrower at the top and wider at the bottom, so as to cooperate with the sliding part 420. In addition, the plate body 121, the first side plate 122 and the second side plate 123 can enclose a first sliding groove 110 with openings at both ends along the first direction, so as to facilitate the movement of the sliding part 420 in the first sliding groove 110.

[0095] Figure 5 Schematic perspective view of a lens barrel device provided by an embodiment of the present application; Figure 6 is Figure 5 front view of; Figure 7 is Figure 5 structural schematic diagram of the main body in; Figure 8 is Figure 5 structural schematic diagram of the first transmission member in; Figure 9 is Figure 5 structural schematic diagram of the second transmission member in.

[0096] Please refer to Figures 5 to 9 , as another possible embodiment of the transmission assembly 400, the transmission assembly 400 includes a first transmission member 430 and a second transmission member 440. The first end of the first transmission member 430 is hinged to the first moving part 210, the second end of the first transmission member 430 is hinged to the first end of the second transmission member 440, the second end of the second transmission member 440 is hinged to the second moving part 310, and a sliding part 420 is connected to the second end of the first transmission member 430 or the first end of the second transmission member 440; and the length between the two ends of the first transmission member 430 is equal to the length between the two ends of the second transmission member 440.

[0097] Among them, the first end of the first transmission member 430 can be hinged to one end of the first moving part 210 facing the main body 100. The second end of the first transmission member 430 can be hinged to the first end of the second transmission member 440, and a sliding part 420 can also be provided at this end. The second end of the second transmission member 440 can be hinged to one end of the second moving part 310 facing the main body 100.

[0098] It can be understood that the above-mentioned hinged connections can all be achieved by means of shafts and holes. Taking the hinged connection between the first transmission member 430 and the second transmission member 440 as an example, a hinge shaft can be provided at the second end of the first transmission member 430, and a hinge hole can be provided at the first end of the second transmission member 440. The hinge shaft can pass through the hinge hole, and a sliding portion 420 can also be provided at one end of the hinge shaft facing the main body 100. Alternatively, a hinge hole can be provided at the second end of the first transmission member 430, and a hinge shaft can be provided at the first end of the second transmission member 440. A sliding portion 420 can also be provided at one end of the hinge shaft facing the main body 100. The sliding portion 420 can be a cylindrical structure.

[0099] The adjustment of the distance between the first lens barrel 200 and the second lens barrel 300 can be achieved through the first transmission member 430 and the second transmission member 440. In addition, the lengths of the first transmission member 430 and the second transmission member 440 can be equal, that is, the distance between the hinge axes at both ends of the first transmission member 430 is equal to the distance between the hinge axes at both ends of the second transmission member 440, so that the synchronous movement of the first lens barrel 200 and the second lens barrel 300 can be achieved, and their rotation angles are the same.

[0100] When the user needs to adjust the interpupillary distance, the first lens barrel 200 or the second lens barrel 300 can be pushed or pulled by hand. Taking the user's operation of the first lens barrel 200 as an example, the first lens barrel 200 can rotate relative to the main body 100 in the first rotation direction under the action of an external force. If the first rotation direction is Figure 6 the counterclockwise direction in [reference], the first moving portion 210 will also rotate around the first rotating portion 230 following the first lens barrel 200. The second end of the first transmission member 430 can rotate relative to the first moving portion 210. The second end of the first transmission member 430 is connected to the sliding portion 420, so that the sliding portion 420 moves upward in the first sliding groove 110 in the first direction. Since the second end of the first transmission member 430 and the sliding portion 420 are also connected to the first end of the second transmission member 440, the second transmission member 440 can rotate relative to the second moving portion 310 under the drive of the sliding portion 420, and then drive the second moving portion 310 and the second lens barrel 300 to rotate relative to the main body 100 in the second rotation direction, that is, the clockwise direction, so that the first lens barrel 200 and the second lens barrel 300 approach each other, thereby reducing the interpupillary distance.

[0101] Conversely, if the user makes the first lens barrel 200 rotate relative to the main body 100 along Figure 6 the clockwise direction in [reference], the second lens barrel 300 can be made to rotate relative to the main body 100 in the counterclockwise direction, so that the first lens barrel 200 and the second lens barrel 300 move away from each other, thereby increasing the interpupillary distance.

[0102] The transmission component of this embodiment realizes the adjustment of the interpupillary distance through the first transmission member 430 and the second transmission member 440, with a simple structure and reduced cost. At the same time, the transmission component can be located between the first lens barrel 200 and the second lens barrel 300, occupying a small space and having a high space utilization rate. More space can be reserved for other electronic devices, thereby reducing the volume of the lens barrel device, facilitating the miniaturization of the lens barrel device, and further reducing the volume and weight of the head-mounted display device.

[0103] In some embodiments, the first transmission member 430 includes a first plate body 431, and a first through hole 432 and a second through hole 433 provided at both ends of the first plate body 431. The first through hole 432 is used for hinging the first moving part 210; the second transmission member 440 includes a second plate body 441, and a third through hole 442 and a protruding part 443 provided at both ends of the second plate body 441 respectively. The third through hole 442 is used for hinging the second moving part 310. The protruding part 443 includes a connecting shaft 444 protruding from one side surface of the second plate body 441 and a sliding part 420 protruding from the other side surface of the second plate body 441. The connecting shaft 444 is used for hinging in the second through hole 433.

[0104] Among them, the first plate body 431 and the second plate body 441 can be in a plate-like structure.

[0105] A first through hole 432 can be provided at the first end of the first plate body 431, that is, the first end of the first transmission member, and the end of the first moving part can be hinged in the first through hole 432. A second through hole 433 can be provided at the second end of the first plate body 431, that is, the second end of the first transmission member.

[0106] A protruding part 443 can be provided at the first end of the second plate body 441, that is, the first end of the second transmission member, and a third through hole 442 can be provided at the second end of the second plate body 441, that is, the second end of the second transmission member. The end of the second moving part can be hinged in the third through hole 442.

[0107] The protruding part 443 can protrude from both side surfaces of the second plate body 441 in a direction perpendicular to the second plate body 441. Among them, the protruding part 443 protruding from one side surface of the second plate body 441 can form the sliding part 420, and the sliding part 420 can be in a cylindrical structure, so that both the sliding of the sliding part 420 along the first sliding groove 110 and the rotation of the second transmission member relative to the main body can be realized. The protruding part 443 protruding from the other side surface of the second plate body 441 can form the connecting shaft 444, and the connecting shaft can pass through the second through hole 433, thereby realizing the hinging between the first transmission member 430 and the second transmission member 440.

[0108] The structures of the first transmission member 430 and the second transmission member 440 are simple and easy to implement, and can reduce costs and weights.

[0109] In some embodiments, Figure 7 The main body 100 includes: a plate body 121 and an annular vertical plate 124 arranged on the plate body 121 , and the annular vertical plate 124 and a part of the plate body 121 located in the annular vertical plate 124 form a first sliding groove 110 .

[0110] In this embodiment, the first sliding groove 110 is a groove body with an open top and closed on all sides, so that the movement limit of the sliding part 420 at both ends of the first sliding groove 110 along the first direction can be limited, preventing the sliding part 420 from detaching from the first sliding groove 110, thereby improving reliability.

[0111] The following will introduce the connection method between the first lens barrel 200 and the main body 100 and the connection method between the second lens barrel 300 and the main body 100. It can be understood that the following connection methods can be used for Figures 1 to 4 The embodiment can also be used for Figures 5 to 9 For the convenience of explanation, Figures 1 to 4 The following is an example of an embodiment of the present invention.

[0112] On the basis of the above embodiment, a first rotating portion 230 is provided at one end of the first lens barrel 200 along the first direction, and the first rotating portion 230 can be rotatably connected to the main body 100; a first sliding hole 240 is also provided at the end of the first lens barrel 200 away from the first direction, and a first connecting portion 130 is provided on the main body 100, and the first connecting portion 130 passes through the first sliding hole 240. When the first lens barrel 200 rotates relative to the main body 100 through the first rotating portion 230, the first connecting portion 130 can move in the first sliding hole 240.

[0113] like Figure 2 The first rotating part 230 may be located at the top of the first lens barrel 200, and the corresponding first sliding hole 240 may be provided at the bottom of the first lens barrel 200. The first lens barrel 200 may rotate relative to the main body 100 by means of the first rotating part 230.

[0114] 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.

[0115] The main body 100 is provided with a first connecting portion 130, which may be a connecting shaft provided on the main body 100, and the connecting shaft may pass through the 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 main body 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.

[0116] 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.

[0117] 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 main body 100 .

[0118] 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.

[0119] 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 left end of the first sliding hole 240, the first lens barrel 200 cannot continue to rotate counterclockwise relative to the main body 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.

[0120] Similarly, when the second connecting body 132 abuts against the right end of the first sliding hole 240, the first lens barrel 200 cannot continue to rotate clockwise relative to the main body 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.

[0121] 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.

[0122] In some embodiments, a second rotating portion 330 is provided at one end of the second lens barrel 300 along the first direction, and the second rotating portion 330 can be rotatably connected to the main body 100; a second sliding hole 340 is also provided at the end of the second lens barrel 300 away from the first direction, and a second connecting portion 140 is provided on the main body 100, and the second connecting portion 140 passes through the second sliding hole 340. When the second lens barrel 300 rotates relative to the main body 100 through the second rotating portion 330, the second connecting portion 140 can move in the second sliding hole.

[0123] 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.

[0124] In addition, the second connecting portion 140 may also include a third connecting body and a fourth connecting body that are spaced apart. The third connecting body and the fourth connecting body are respectively used to define the end points of the trajectory of the relative rotation of the second lens barrel 300 with respect to the main body 100.

[0125] The structures and functions of the second sliding hole 340, the second connecting portion 140, the third connecting body, and the fourth connecting body are respectively the same as or similar to those of the first sliding hole 240, the first connecting portion 130, the first connecting body, and the second connecting body in the above embodiments. For details, reference may be made to the above respective embodiments and will not be elaborated herein.

[0126] In some embodiments, with continued reference to Figure 4 , a first mounting seat 150 and a second mounting seat 160 are provided on the main body 100. The first lens barrel 200 is rotatably connected to the first mounting seat 150, and the second lens barrel 300 is rotatably connected to the second mounting seat 160. Taking the dimension in the direction perpendicular to the main body 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.

[0127] The first mounting seat 150 may also be in a cylindrical structure, which may protrude from the main body 100. The first lens barrel 200 may be reversely mounted on the first mounting seat 150. The top end of the first mounting seat 150 facing away from the main body 100 may have a first flanging, and the edge of the first lens barrel 200 facing the first mounting seat 150 may also be provided with a second flanging. The first rotating portion 230 may be provided on the second flanging. The first flanging may be fitted with the second flanging, and the first lens barrel 200 may be rotatably connected to the first mounting seat 150 through the first rotating portion.

[0128] The second mounting seat 160 may also be in a cylindrical structure, which may protrude from the main body 100. The second lens barrel 300 may be reversely mounted on the second mounting seat 160. The top end of the second mounting seat 160 facing away from the main body 100 may have a third flanging, and the edge of the second lens barrel 300 facing the second mounting seat 160 may also be provided with a fourth flanging. The second rotating portion 330 may be provided on the fourth flanging. The third flanging may be fitted with the fourth flanging, and the second lens barrel 300 may be rotatably connected to the second mounting seat 160 through the second rotating portion.

[0129] The height may be the dimension in the direction perpendicular to the main body 100, that is, Figure 2 the dimension in the direction perpendicular to the paper surface in

[0130] The height of the second lens barrel 300 is less than that of the first lens barrel 200, such that the sum of the height of the first mounting base 150 and the height of the first lens barrel 200 is equal to the sum of the height of the second mounting base 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 from each other to avoid movement interference between the two.

[0131] An embodiment of the present application provides a head-mounted display device, including: a housing and a lens barrel device; the lens barrel device is installed in the housing.

[0132] Among them, the head-mounted display device can be applied to various application scenarios such as Extended Reality (XR), Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR).

[0133] The housing can be an outer shell made of metal or plastic, and the lens barrel device can be installed in the housing. The structure and function of the lens barrel device are the same as those in the above embodiments, and specific descriptions can refer to the elaborations in the above respective embodiments.

[0134] The head-mounted display device provided by the embodiment of the present application is provided with a main body, a first lens barrel, a second lens barrel and a transmission component in the lens barrel device; the main body has a first sliding groove extending in a first direction; the first lens barrel is rotatably connected to the main body; the second lens barrel is rotatably connected to the main body, and the first lens barrel and the second lens barrel are arranged at intervals in a second direction perpendicular to the first direction; the transmission component is connected to the first lens barrel and the second lens barrel, and the transmission component includes a sliding portion movably connected to the first sliding groove in the first direction; the transmission component is used to convert the rotation of the first lens barrel relative to the main body in a first rotation direction into the movement of the sliding portion along the first sliding groove, and convert the movement of the sliding portion along the first sliding groove into the rotation of the second lens barrel relative to the main body in a second rotation direction, so that the first lens barrel and the second lens barrel approach or move away from each other, thereby realizing the adjustment of the interpupillary distance, enabling the user to see a clear image, improving the user experience, having a simple structure and low cost, making full use of the space between the first lens barrel and the second lens barrel, improving the space utilization rate, and being beneficial to improving the volume, weight and performance of the head-mounted display device.

[0135] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0136] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0137] In addition, the terms "first", "second", etc. used in the embodiments of this application are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated in this embodiment. Thus, the features defined with the terms "first", "second", etc. in the embodiments of this application can explicitly or implicitly indicate that at least one such feature is included in this embodiment. In the description of this application, the meaning of the word "plurality" is at least two or more than two, such as two, three, four, etc., unless otherwise specifically defined in the embodiment.

[0138] In this application, unless otherwise clearly specified or limited by relevant regulations in the embodiment, the terms "install", "connect", "couple", and "fix", etc. appearing in the embodiment should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or integrated. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific implementation circumstances.

[0139] In this application, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirectly in contact via an intermediate medium. Further, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0140] The above are only specific embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily conceive of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A lens barrel device, characterized in that, For use in a head-mounted display device, including: A main body having a first sliding groove extending in a first direction; A first lens barrel rotatably connected to the main body; A second lens barrel rotatably connected to the main body, and the first lens barrel and the second lens barrel are spaced apart in a second direction perpendicular to the first direction; A transmission assembly connected to the first lens barrel and the second lens barrel, and the transmission assembly includes a sliding portion movably connected to the first sliding groove in the first direction; The transmission assembly is configured to convert the rotation of the first lens barrel relative to the main body in a first rotation direction into the movement of the sliding portion along the first sliding groove, and convert the movement of the sliding portion along the first sliding groove into the rotation of the second lens barrel relative to the main body in a second rotation direction, so that the first lens barrel and the second lens barrel approach or move away from each other; wherein, the first rotation direction is opposite to the second rotation direction.

2. The lens barrel device according to claim 1, characterized in that, The first lens barrel includes a first moving portion extending in a direction perpendicular to the main body, the second lens barrel includes a second moving portion extending in a direction perpendicular to the main body, the transmission assembly is respectively connected to the first moving portion and the second moving portion, and the transmission assembly, the first sliding groove, the first moving portion and the second moving portion are located between the first lens barrel and the second lens barrel.

3. The lens barrel device according to claim 2, characterized in that, The transmission assembly includes a sliding member, the sliding member includes the sliding portion and a mounting portion connected to the sliding portion, and the mounting portion is provided with a second sliding groove extending in the second direction; The first moving portion is movably connected to the second sliding groove in the second direction, and the second moving portion is movably connected to the second sliding groove in the second direction.

4. The lens barrel device according to claim 3, characterized in that, Taking a cross-section parallel to the main body as the cross-section, the cross-sectional area of the sliding portion increases from one end close to the mounting portion to the end far from the mounting portion; and the first sliding groove is in shape-fit connection with the sliding portion.

5. The lens barrel device according to claim 3, characterized in that, The main body includes a plate body and a first side plate and a second side plate spaced apart in the second direction, the first side plate and the second side plate are connected to the plate body, and both the first side plate and the second side plate extend in the first direction; the first side plate, the second side plate and the plate body located between the first side plate and the second side plate form the first sliding groove.

6. The lens barrel device according to claim 2, characterized in that, The transmission assembly includes a first transmission member and a second transmission member, a first end of the first transmission member is hinged to the first moving portion, a second end of the first transmission member is hinged to a first end of the second transmission member, a second end of the second transmission member is hinged to the second moving portion, and the sliding portion is connected to a second end of the first transmission member or a first end of the second transmission member; And the length between the two ends of the first transmission member is equal to the length between the two ends of the second transmission member.

7. The lens barrel device according to claim 6, characterized in that, The first transmission member includes a first plate body and a first through hole and a second through hole provided at both ends of the first plate body, and the first through hole is used for hinging the first moving portion; The second transmission member includes a second plate body, and a third through hole and a protruding portion respectively disposed at two ends of the second plate body. The third through hole is used for hinging the second moving portion, and the protruding portion includes a connecting shaft protruding from one side surface of the second plate body and the sliding portion protruding from the other side surface of the second plate body. The connecting shaft is used for hinging to the second through hole.

8. The lens barrel device according to claim 6, characterized in that, The main body includes: a plate body and an annular vertical plate disposed on the plate body. The annular vertical plate and a part of the plate body located in the annular vertical plate enclose the first sliding groove.

9. The lens barrel device according to any one of claims 2 - 8, characterized in that, A first support portion is disposed on an outer surface of the first lens barrel, and the first moving portion is disposed at an end of the first support portion departing from the outer surface of the first lens barrel; A second support portion is disposed on an outer surface of the second lens barrel, and the second moving portion is disposed at an end of the second support portion departing from the outer surface of the second lens barrel; The distance between the first support portion and the main body is less than the distance between the second support portion and the main body.

10. The lens barrel device according to claim 9, characterized in that, During the rotation of the first lens barrel relative to the main body, the orthographic projection of the transmission assembly on the main body, the orthographic projection of the first support portion on the main body, and the orthographic projection of the second support portion on the main body are all located within the main body.

11. The lens barrel device according to any one of claims 1 - 8, characterized in that, A first rotating portion is disposed at one end of the first lens barrel along the first direction, and the first rotating portion is rotatably connected to the main body; A first sliding hole is further disposed at an end of the first lens barrel departing from the first direction. A first connecting portion is disposed on the main body, and the first connecting portion penetrates through the first sliding hole. When the first lens barrel rotates relative to the main body through the first rotating portion, the first connecting portion can move in the first sliding hole.

12. The lens barrel device according to claim 11, characterized in that, The first connecting portion includes a first connecting body and a second connecting body disposed at intervals. The first connecting body and the second connecting body are respectively used for defining end points of a trajectory of the first lens barrel rotating relative to the main body.

13. The lens barrel device according to claim 11, wherein, A second rotating portion is disposed at one end of the second lens barrel along the first direction, and the second rotating portion is rotatably connected to the main body; A second sliding hole is further disposed at an end of the second lens barrel departing from the first direction. A second connecting portion is disposed on the main body, and the second connecting portion penetrates through the second sliding hole. When the second lens barrel rotates relative to the main body through the second rotating portion, the second connecting portion can move in the second sliding hole.

14. A head-mounted display device, wherein, Comprising: A housing and a lens barrel device according to any one of claims 1-13; The lens barrel device is installed in the housing.

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