Head-mounted display device

Abstract

The invention discloses a head-mounted display device, and relates to the technical field of intelligent wearing, the head-mounted display device comprises a housing, two optical modules and an adjusting assembly, and an accommodating cavity is formed in the housing; the two optical modules are movably installed in the containing cavity in a spaced mode in the left-right direction, each optical module comprises a lens cone, and the two lens cones are each provided with a lens; the adjusting assembly transversely extends to the sides, away from the lenses, of the two lens cones and comprises an adjusting body, a clutch structure, a first matching structure and a second matching structure, wherein the first matching structure and the second matching structure are arranged corresponding to the optical modules respectively and arranged in the front-back direction. When the interpupillary distance is adjusted, the clutch structure controls the first matching structure to be combined with the adjusting body and controls the second matching structure to be separated from the adjusting body. When the focal length is adjusted, the clutch structure controls the second matching structure to be combined with the adjusting body and the first matching structure to be separated from the adjusting body. According to the technical scheme provided by the invention, the interpupillary distance and the focal length of the head-mounted display equipment can be adjusted at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearing, in particular to a head-mounted display device. BACKGROUND

[0002] As an important carrier of virtual reality (VR), augmented reality (AR) and other extended reality (XR) technologies, head-mounted display devices are increasingly attracting widespread attention and being applied in multiple fields. Head-mounted display devices include AR devices, VR devices and the like. Due to physiological differences of users, especially differences in interpupillary distance and vision, the popularity and user experience of head-mounted display devices are severely limited.

[0003] Specifically, there are significant differences in interpupillary distance among individuals, which usually ranges from 52 to 78 mm. There are also significant differences in vision states among individuals, such as myopia, hypermetropia, astigmatism and the like. If the optical center of the device cannot be aligned with the pupil center of the user, or the focal length is not appropriate, it will cause image blurring and distortion, and cause visual fatigue, dizziness, nausea and other discomfort, which seriously affects the wearing experience and the application range of the head-mounted display device. SUMMARY

[0004] The main purpose of the embodiment of the present application is to provide a head-mounted display device, which aims to simultaneously realize the adjustment of interpupillary distance and focal length of the head-mounted display device.

[0005] To achieve the above-mentioned purpose, the head-mounted display device provided by the embodiment of the present application comprises: a housing, an accommodating cavity is formed in the housing; two optical modules, which are spaced apart along the left-right direction and movably installed in the accommodating cavity, each of the two optical modules comprises a lens barrel, and each of the two lens barrels is provided with a lens; and an adjustment assembly, which extends transversely on a side of the two lens barrels away from the lenses, the adjustment assembly comprises an adjustment body movably arranged in the accommodating cavity, a clutch structure arranged in the accommodating cavity, and a first matching structure and a second matching structure corresponding to each of the optical modules, the first matching structure and the second matching structure are arranged along the front-rear direction; When the interpupillary distance of the two optical modules is adjusted, the clutch structure controls the first matching structure and the second matching structure to move in the front-rear direction, the first matching structure is combined with the adjustment body, and the second matching structure is separated from the adjustment body; When the focal length of the optical module is adjusted, the clutch structure controls the first matching structure and the second matching structure to move in the front-rear direction, the second matching structure is combined with the adjustment body, and the first matching structure is separated from the adjustment body.

[0006] In an embodiment, the adjusting body is configured as an elastic strip, the elastic strip includes non-deformable sections arranged at two ends and a deformable section arranged between the two non-deformable sections, the two non-deformable sections are used to cooperate with the two first cooperation structures or the two second cooperation structures, and the deformable section is deformed to drive the two non-deformable sections to move towards each other or away from each other in a direction, so as to adjust the interpupillary distance or the focal length.

[0007] In an embodiment, the first cooperation structure includes a first tooth column, one end of the first tooth column is provided with a first engagement tooth, and the two non-deformable sections are each provided with a rack; when the interpupillary distance is adjusted, the first engagement tooth is engaged with the rack, and the rotation of the first engagement tooth relative to the rack is limited.

[0008] In an embodiment, the optical module is provided with an internal tooth, the first engagement tooth is engaged with the internal tooth, so that the rotation of the first engagement tooth relative to the rack is limited, and the first engagement tooth can move relative to the internal tooth in the front-rear direction.

[0009] In an embodiment, the optical module further includes an optical housing, the lens barrel is connected with the optical housing through the first tooth column, the optical housing is provided with a sliding groove extending in the left-right direction and a first connecting hole extending in the front-rear direction, the sliding groove and the first connecting hole are in communication, and the first connecting hole is formed with the internal tooth on a side of the sliding groove away from the lens barrel; The two ends of the elastic strip respectively extend into the two sliding grooves and can slide relative to the sliding grooves, and the first tooth column extends into the first connecting hole; When the interpupillary distance is adjusted, the clutching structure controls part of the first engagement teeth to engage with the internal tooth and part of the first engagement teeth to engage with the rack, so that the deformable section is deformed to drive the two non-deformable sections to move in the left-right direction and drive the two optical modules to move towards each other or away from each other in the left-right direction.

[0010] In an embodiment, the second cooperation structure includes a second tooth column, the second tooth column is sleeved on the first tooth column, the second tooth column is provided with a second engagement tooth and an external thread; the lens barrel is provided with an internal thread, and the external thread is threadedly connected with the internal thread; When the interpupillary distance is adjusted, the clutching structure controls the first engagement tooth to engage with the internal tooth and the second engagement tooth to engage with the rack, so that the deformable section is deformed to drive the two non-deformable sections to move in the left-right direction, drive the second tooth column to rotate relative to the first tooth column, drive the internal thread to rotate relative to the external thread, and drive the lens barrel to move relative to the optical housing in the front-rear direction.

[0011] In an embodiment, the first tooth column is further provided with a first optical axis segment for sleeving the second tooth column, and a fixing hole is arranged at one end of the first optical axis segment away from the first engaging tooth, and a fixing pin is fixed in the fixing hole to limit the axial movement of the second tooth column relative to the first optical axis segment.

[0012] In an embodiment, the non-deformable segment is provided with a limiting slot, one slot wall of the limiting slot is provided with the rack, and two opposite slot walls adjacent to the rack are used for stopping the second engaging tooth; and / or The second tooth column is provided with a second optical axis segment between the second engaging tooth and the external thread, and the second optical axis segment is provided with a first step; the optical shell is provided with a limiting hole in communication with the first connecting hole, and a limiting pin extends into the limiting hole; When the elastic strip is matched with the first tooth column, the limiting pin abuts against the first step; when the elastic strip is matched with the second tooth column, the limiting pin abuts against one end of the external thread facing the second optical axis segment; and / or The optical shell comprises a seat body, a sleeve, and a connecting cylinder connecting the seat body and the sleeve, the first connecting hole penetrates through the seat body, the connecting cylinder, and the sleeve, and the lens barrel is arranged in the sleeve and can move relative to the sleeve along the front-rear direction; The connecting cylinder is provided with a second step, and when the elastic strip is matched with the first tooth column, the second step is used for abutting against one end of the second engaging tooth facing the external thread.

[0013] In an embodiment, the clutching structure comprises oppositely arranged first and second magnetic members, at least one of the first and second magnetic members is an electromagnet, the first magnetic member is arranged on the first tooth column, and the second magnetic member is arranged on the optical shell; When the first and second magnetic members have the same polarity, the first engaging tooth moves away from the second magnetic member to make part of the first engaging tooth engage with the internal tooth and part of the first engaging tooth engage with the rack; When the first and second magnetic members have opposite polarities, the first engaging tooth engages with the internal tooth, and the second engaging tooth engages with the rack.

[0014] In an embodiment, the adjusting assembly further comprises a driving structure for driving the deformation of the deformable segment and controlling the deformation size of the deformable segment to control the adjustment size of the interpupillary distance or the focal length.

[0015] In an embodiment, the driving structure comprises oppositely arranged third and fourth magnetic members, at least one of the third and fourth magnetic members is an electromagnet, the third magnetic member is arranged on the deformable section, and the fourth magnetic member is arranged in the accommodating cavity; when the third and fourth magnetic members have the same polarity, the deformable section deforms in a direction away from the fourth magnetic member.

[0016] In an embodiment, the shell is provided with a touch area, and a touch circuit board is arranged in the accommodating cavity opposite to the touch area, and the touch circuit board is electrically connected to the third magnetic member or the fourth magnetic member.

[0017] In an embodiment, a fixing seat is arranged in the accommodating cavity, the fixing seat comprises a seat body and a seat support fixed on the seat body, the two optical modules are movably arranged on the seat body and located on opposite sides of the seat support, opposite ends of the seat support are formed with positioning grooves, and the two ends of the elastic strip respectively extend into the sliding grooves through the positioning grooves.

[0018] In an embodiment, the two ends of the seat support are respectively provided with two oppositely arranged support arms, the two support arms are respectively provided with positioning holes, a rotating cylinder is arranged between the two support arms, a connecting pin passes through the two positioning holes and the rotating cylinder, so that the rotating cylinder can rotate relative to the support arms, and the rotating cylinder and the two support arms form the positioning grooves.

[0019] The technical scheme of the embodiment of the present application is characterized in that a housing, two optical modules and an adjusting assembly are arranged in the head-mounted display device, the housing is formed with a receiving cavity, the two optical modules are spaced apart and movably arranged in the receiving cavity along the left-right direction, each of the two optical modules comprises a lens barrel, and each of the two lens barrels is provided with a lens; the adjusting assembly extends laterally on the side of the two lens barrels away from the lenses, and the adjusting assembly comprises an adjusting body movably arranged in the receiving cavity, a clutch structure arranged in the receiving cavity, and a first matching structure and a second matching structure corresponding to each optical module, wherein the first matching structure and the second matching structure are arranged along the front-rear direction; when the interpupillary distance of the two optical modules is adjusted, the clutch structure controls the first matching structure and the second matching structure to move along the front-rear direction, so that the first matching structure is combined with the adjusting body and the second matching structure is separated from the adjusting body, so that the two lens barrels are driven to move along the left-right direction when the adjusting body moves; when the focal length of the optical module is adjusted, the clutch structure controls the first matching structure and the second matching structure to move along the front-rear direction, so that the second matching structure is combined with the adjusting body and the first matching structure is separated from the adjusting body, so that the lens barrel is driven to move along the front-rear direction when the adjusting body moves. In this way, the present application can realize the adjustment of the interpupillary distance and the focal length by arranging one adjusting assembly, thereby avoiding the need to arrange two independent adjusting structures to adjust the interpupillary distance and the focal length respectively, which is beneficial to the simplicity of the structure and the light weight of the head-mounted display device. At the same time, the clutch structure is arranged to switch the object matched with the adjusting assembly, and different matching objects can realize different movement tracks, so that the adjusting assembly can realize the adjustment of the interpupillary distance when matched with the first matching structure, and the adjusting assembly can realize the adjustment of the focal length when matched with the second matching structure, so that the adjustment of the interpupillary distance and the focal length is carried out separately, thereby avoiding the interference of the adjustment of the interpupillary distance and the focal length. In this way, the present application simultaneously realizes the adjustment of the interpupillary distance and the focal length of the head-mounted display device, ensures the wearing comfort and wearing effect of different users, and improves the application range of the head-mounted display device. BRIEF DESCRIPTION OF DRAWINGS

[0020] 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 needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0021] Figure 1 An exploded structural schematic view of an embodiment of the head-mounted display device provided by the present application; Figure 2 An embodiment of the cooperation structure of the two optical modules and the adjusting assembly in Figure 1 An embodiment of the cooperation structure of the two optical modules and the adjusting assembly in Figure 3 An embodiment of the cooperation structure of the two optical modules and the adjusting assembly inFigure 2 An exploded view of part of the structure; Figure 4 for Figure 3 A schematic diagram of the structure of an embodiment of the elastic strip; Figure 5 for Figure 3 An exploded view of an embodiment of the optical module in the diagram; Figure 6 for Figure 5 Enlarged structural diagram of the first toothed column, the second toothed column, and the fixing pin; Figure 7 for Figure 6 A cross-sectional view of an embodiment of the structural combination in the image; Figure 8 for Figure 5 A partial enlarged view of one embodiment of the base; Figure 9 for Figure 3 A cross-sectional view of an embodiment of the optical module, in which the elastic strip engages with the first toothed post; Figure 10 for Figure 9 Enlarged view of a portion of the structure; Figure 11 for Figure 3 A cross-sectional view of an embodiment of the optical module, in which the elastic strip engages with the second toothed post; Figure 12 for Figure 11 Enlarged view of a portion of the structure; Figure 13 for Figure 3 An exploded structural diagram of one embodiment of the fixed base.

[0022] Explanation of icon numbers: 100. Outer casing; 101. Touch circuit board; 102. Main circuit board; 103. Optical circuit board; 104. Connecting circuit board; 110. Receiving cavity; 120. Touch area; 131. Front shell; 132. Rear shell; 200. Optical module; 201. Base; 202. Sleeve; 203. Connecting sleeve; 204. Second step; 210. Optical housing; 211. Sliding groove; 212. First connecting hole; 213. Internal teeth; 214. Slide plate; 215. Sliding hole; 216. Slide rod; 217. Limiting hole; 218. Limiting pin; 220. Lens barrel; 221. Internal thread; 222. Body part; 223. Connecting part; 300. Adjustment component; 301. Adjustment body; 302. Elastic strip; 310. Non-deformable section; 311. Rack; 312. Limiting groove; 320. Deformable section; 400, clutch structure; 410, first magnetic member; 420, second magnetic member; 500, first matching structure; 501, first tooth column; 510, first meshing tooth; 520, first optical axis segment; 521, fixing hole; 530, fixing pin; 600, second matching structure; 601, second tooth column; 610, second meshing tooth; 620, external thread; 630, second optical axis segment; 631, first step; 700, driving structure; 710, third magnetic member; 720, fourth magnetic member; 800, fixing seat; 810, seat body; 820, seat support; 821, positioning groove; 830, support arm; 831, positioning hole; 840, rotating cylinder; 850, connecting pin.

[0023] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0026] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0027] Head-mounted display device as an important carrier of virtual reality (VR), augmented reality (AR) and other extended reality (XR) technology, is increasingly widely concerned and applied in many fields. The head-mounted display device includes AR type device, VR type device and the like, limited by the physiological differences of the user, especially the interpupillary distance and the vision, which seriously limits the popularity and user experience of the head-mounted display device.

[0028] Specifically, the interpupillary distance of each person varies significantly, usually in the range of 52-78mm, and the average interpupillary distance of men and women is also different. The vision state of each person also varies significantly, such as myopia, hypermetropia, astigmatism, etc. If the optical center of the device cannot be aligned with the pupil center of the user, or the focal length is not appropriate, it will cause image blur, distortion, and cause visual fatigue, dizziness, nausea and other discomfort, which seriously affects the wearing experience and the application range of the head-mounted display device.

[0029] The present application provides a head-mounted display device.

[0030] Please refer to Figures 1 to 3 In an embodiment of the present application, the head-mounted display device includes a shell 100, two optical modules 200 and an adjusting assembly 300, the shell 100 forms an accommodating cavity 110 inside, the two optical modules 200 are spaced apart and movably mounted in the accommodating cavity 110 along the left-right direction, the two optical modules 200 each include a lens barrel 220, and the two lens barrels 220 are each provided with a lens; the adjusting assembly 300 extends transversely on the side of the two lens barrels 220 away from the lens, the adjusting assembly 300 includes an adjusting body 301 movably arranged in the accommodating cavity 110, a clutch structure 400 (as shown in Figure 10 、 Figure 12 indicated) arranged in the accommodating cavity 110, and a first matching structure 500 and a second matching structure 600 (as shown in Figure 5 indicated) correspondingly arranged for each optical module 200, the first matching structure 500 and the second matching structure 600 are arranged along the front-rear direction.

[0031] It can be understood that the head-mounted display device includes a front frame part and a temple part, the temple part is used to lap with the ear to realize the wearing of the head-mounted display device. In some embodiments, the temple part can also adopt a structure form of a strap, an adjusting band and the like. The front frame part is integrated with a core display assembly and the like, in an embodiment, the front frame part is provided with two optical modules 200, the two optical modules 200 are spaced apart and arranged in the accommodating cavity along the left-right direction, and the two optical modules 200 are respectively used to provide images to the left eye and the right eye of the user.

[0032] Please refer to Figure 1In an embodiment, the housing 100 comprises a front shell 131 and a rear shell 132, and a receiving cavity 110 is formed between the front shell 131 and the rear shell 132, and the receiving cavity 110 provides space for mounting the two optical modules 200. In an embodiment, the front shell 131 and the rear shell 132 are connected by a screw locking structure, and in other embodiments, the two shells can also be connected by clamping or other means.

[0033] It can be understood that, in order to realize the adjustment of the distance between the two optical modules 200 and the adjustment of the distance between the optical modules 200 and the eyes of the user, the two optical modules 200 are movably mounted in the receiving cavity 110. The head-mounted display device has a front-rear direction, an up-down direction, and a left-right direction, and the adjustment of the distance between the two optical modules 200, i.e., the adjustment of the interpupillary distance, is performed along the left-right direction; the adjustment of the distance between the optical modules 200 and the eyes of the user is performed along the front-rear direction.

[0034] The two optical modules 200 each comprise a lens barrel 220, and each lens barrel 220 is provided with a lens. It can be understood that the lens is used to face the eyes of the user so that the user can obtain the image presented through the lens. The adjustment assembly 300 extends transversely on the side of the two lens barrels 220 away from the lenses, i.e., the adjustment assembly 300 extends along the left-right direction to be able to control the movement of the two lens barrels 220 simultaneously. It can be understood that, in the front-rear direction, the lenses are located at the rear of the receiving cavity 110 to face the eyes of the user; and the adjustment assembly 300 is located at the front of the receiving cavity 110 to avoid the blocking of the lenses by the adjustment assembly 300.

[0035] Please refer to Figure 3 , Figure 5 , Figure 10 and Figure 12 , the adjustment assembly 300 comprises an adjustment body 301, a clutch structure 400, a first matching structure 500, and a second matching structure 600, the adjustment body 301 is movably mounted in the receiving cavity 110, the two optical modules 200 are each provided with the first matching structure 500 and the second matching structure 600, the first matching structure 500 and the second matching structure 600 are arranged along the front-rear direction, and the clutch structure 400 is mounted in the receiving cavity 110 and is used to control the cooperation of the first matching structure 500 or the second matching structure 600 with the adjustment body 301.

[0036] When adjusting the pupil distance of the two optical modules 200, the clutch structure 400 controls the first matching structure 500 and the second matching structure 600 to move in the front-rear direction, so that the first matching structure 500 is combined with the adjusting body 301, and the second matching structure 600 is separated from the adjusting body 301, so that when the adjusting body 301 moves, the two barrels 220 are moved in the left-right direction; when adjusting the focal length of the optical module, the clutch structure 400 controls the first matching structure 500 and the second matching structure 600 to move in the front-rear direction, so that the second matching structure 600 is combined with the adjusting body 301, and the first matching structure 500 is separated from the adjusting body 301, so that when the adjusting body 301 moves, the barrel 220 is moved in the front-rear direction.

[0037] It can be understood that the first matching structure 500 and the second matching structure 600 are arranged in the front-rear direction, and the clutch structure 400 can control the movement of the first matching structure 500 and the second matching structure 600 in the front-rear direction. In the scheme shown in the drawings of the present application, the first matching structure 500 and the second matching structure 600 are arranged in the accommodating cavity 110, and the adjusting body 301 can drive the movement of the first matching structure 500 and the second matching structure 600 to drive the movement of the optical module 200.

[0038] When adjusting the pupil distance, the clutch structure 400 controls the first matching structure 500 to be combined with the adjusting body 301, and at this time, the second matching structure 600 is not combined with the adjusting body 301, so that when the adjusting body 301 moves, the first matching structure 500 can be moved, thereby driving the two barrels 220 to move close to or away from each other in the left-right direction, thereby adjusting the pupil distance. When adjusting the focal length, the clutch structure 400 controls the second matching structure 600 to be combined with the adjusting body 301, and at this time, the first matching structure 500 is not combined with the adjusting body 301, so that when the adjusting body 301 moves, the second matching structure 600 can be moved, thereby driving the barrel 220 to move close to or away from the eye in the front-rear direction, thereby adjusting the focal length.

[0039] The technical scheme of the embodiment of the present application is characterized in that a housing 100, two optical modules 200 and an adjusting assembly 300 are arranged in the head-mounted display device, the housing 100 is formed with a receiving cavity 110, the two optical modules 200 are spaced apart and movably arranged in the receiving cavity 110 along the left-right direction, each of the two optical modules 200 comprises a lens barrel 220, and each of the two lens barrels 220 is provided with a lens; the adjusting assembly 300 extends laterally on the side of the two lens barrels 220 away from the lenses, the adjusting assembly 300 comprises an adjusting body 301 movably arranged in the receiving cavity 110, a clutch structure 400 arranged in the receiving cavity 110, and a first matching structure 500 and a second matching structure 600 arranged correspondingly to each of the two optical modules 200, the first matching structure 500 and the second matching structure 600 are arranged along the front-rear direction; when the interpupillary distance of the two optical modules 200 is adjusted, the clutch structure 400 controls the first matching structure 500 and the second matching structure 600 to move along the front-rear direction, so that the first matching structure 500 is combined with the adjusting body 301 and the second matching structure 600 is separated from the adjusting body 301, so that the two lens barrels 220 are driven to move along the left-right direction when the adjusting body 301 moves; when the focal length of the optical module is adjusted, the clutch structure 400 controls the first matching structure 500 and the second matching structure 600 to move along the front-rear direction, so that the second matching structure 600 is combined with the adjusting body 301 and the first matching structure 500 is separated from the adjusting body 301, so that the lens barrel 220 is driven to move along the front-rear direction when the adjusting body 301 moves. In this way, the present application can realize the adjustment of the interpupillary distance and the focal length by arranging one adjusting assembly 300, thereby avoiding the need to arrange two independent adjusting structures to adjust the interpupillary distance and the focal length respectively, which is beneficial to the simplicity of the structure and the light weight of the head-mounted display device. Meanwhile, the clutch structure 400 is arranged to switch the objects matched with the adjusting assembly 300, different matching objects can realize different movement tracks, so that the adjusting assembly 300 can realize the adjustment of the interpupillary distance when matched with the first matching structure 500, and the adjusting assembly 300 can realize the adjustment of the focal length when matched with the second matching structure 600, so that the adjustment of the interpupillary distance and the focal length is carried out separately, thereby avoiding the interference of the adjustment of the interpupillary distance and the focal length. In this way, the present application realizes the adjustment of the interpupillary distance and the focal length of the head-mounted display device at the same time, ensures the wearing comfort and the wearing effect of different users, and improves the application range of the head-mounted display device.

[0040] Please refer to Figure 4 In the embodiment of the present application, the adjusting body 301 is configured as an elastic strip 302, the elastic strip 302 comprises two non-deformable sections 310 arranged at two ends and a deformable section 320 arranged between the two non-deformable sections 310, the two non-deformable sections 310 are used to cooperate with the two first matching structures 500 or the two second matching structures 600, and the deformable section 320 is deformed to drive the two non-deformable sections 310 to move towards each other or away from each other, so as to adjust the interpupillary distance or the focal length.

[0041] It can be understood that in the scheme shown in the drawings of the present application, the adjusting body 301 is configured as an elastic strip 302 extending in the left-right direction, the two ends of the elastic strip 302 along the length direction thereof are non-deformable sections 310, and the section between the two non-deformable sections 310 is a deformable section 320. The deformable section 320 and the two non-deformable sections 310 are made of different materials, and in an embodiment, the deformable section 320 and the two non-deformable sections 310 are an integral structure and can be formed by a double-color injection molding process. Of course, in other embodiments, the deformable section 320 and the two non-deformable sections 310 can also be a split structure and are connected by clamping, bonding or the like. The deformable section 320 can be made of silicone, rubber or the like, and the specific materials of the deformable section 320 and the non-deformable section 310 are not limited herein.

[0042] In an embodiment, when the deformable section 320 is not deformed, the deformable section 320 is in a straight line structure; when the deformable section 320 is deformed, the deformable section 320 is in an arch structure. In the up-down direction, the deformable section 320 can be deformed upward or downward. In the scheme shown in the drawings of the present application, the deformable section 320 is deformed upward.

[0043] It should be noted that when the deformable section 320 is switched from not deformed to deformed and arched, it will inevitably drive the two non-deformable sections 310 to move towards each other, and the distance between the two non-deformable sections 310 moving towards each other is determined by the degree of deformation of the deformable section 320. The two non-deformable sections 310 are used to connect with the two first cooperating structures 500 or the two second cooperating structures 600, so that when the deformable section 320 is deformed, the two first cooperating structures 500 or the two second cooperating structures 600 also move, thereby realizing the adjustment of the pupil distance and the focal length. It can be understood that when the deformable section 320 is in the non-deformed state, the pupil distance is at a maximum value, and the focal length is at a minimum value or a maximum value.

[0044] Please refer to Figures 3 to 6 In an embodiment of the present application, the first cooperating structure 500 includes a first tooth column 501, one end of the first tooth column 501 is provided with a first meshing tooth 510, and the two non-deformable sections 310 are each provided with a gear rack 311; when the pupil distance is adjusted, the first meshing tooth 510 is engaged with the gear rack 311, and the rotation of the first meshing tooth 510 relative to the gear rack 311 is limited.

[0045] It can be understood that in the scheme shown in the figure of the present application, the first tooth column 501 is connected with the optical module 200, so that the optical module 200 can move following the movement of the first tooth column 501. The axial direction of the first tooth column 501 is the front-rear direction, and one end of the first tooth column 501 in the axial direction is provided with the first engaging tooth 510, that is, the end of the first tooth column 501 close to the front is provided with the first engaging tooth 510. When the pupil distance needs to be adjusted, the clutch structure 400 controls the first tooth column 501 to move in the front-rear direction, so that the first engaging tooth 510 can engage with the rack 311. It can be understood that when the deformable section 320 deforms, the two undeformable sections 310 move towards each other, so that the two racks 311 on the two undeformable sections 310 move in the left-right direction towards each other. At the same time, the rack 311 also engages with the first engaging tooth 510. In order to avoid the first engaging tooth 510 from rotating in place following the movement of the rack 311, and to avoid the distance between the two optical modules 200 from changing, the first engaging tooth 510 also needs to be limited in rotation relative to the rack 311. In this way, when the two racks 311 move towards each other, the two first engaging teeth 510 also move towards each other, thereby driving the two optical modules 200 to move towards each other, thereby achieving the adjustment of the pupil distance.

[0046] Please refer to Figure 5 and Figure 8 In the embodiment of the present application, the optical module 200 is provided with an inner tooth 213, and the first engaging tooth 510 engages with the inner tooth 213, so that the first engaging tooth 510 is limited in rotation relative to the rack 311, and the first engaging tooth 510 can move in the front-rear direction relative to the inner tooth 213.

[0047] In the scheme shown in the figure of the present application, the optical module 200 is provided with an inner tooth 213, and the axial direction of the inner tooth 213 is consistent with the axial direction of the first engaging tooth 510. The first engaging tooth 510 engages with the inner tooth 213, thereby achieving the limitation of the rotation of the first engaging tooth 510 relative to the rack 311, and also achieving the connection of the first tooth column 501 with the optical module 200. In addition, the first engaging tooth 510 can also move in the front-rear direction relative to the inner tooth 213, thereby achieving the control of the clutch structure 400 on the first engaging structure 500 in the front-rear direction. It can be understood that when the pupil distance is adjusted, part of the first engaging tooth 510 engages with the rack 311 and part of the first engaging tooth 510 engages with the inner tooth 213 in the front-rear direction.

[0048] In the embodiment of the present application, the optical module 200 comprises an optical housing 210, the lens barrel 220 is connected with the optical housing 210 through the first tooth column 501, the optical housing 210 is provided with a sliding groove 211 extending along the left-right direction and a first connecting hole 212 extending along the front-back direction, the sliding groove 211 and the first connecting hole 212 are communicated, and the first connecting hole 212 is formed with internal teeth 213 on the side of the sliding groove 211 away from the lens barrel 220; the two ends of the elastic strip 302 respectively extend into the two sliding grooves 211 and can slide relative to the sliding grooves 211, and the first tooth column 501 extends into the first connecting hole 212. When the pupil distance is adjusted, the clutch structure 400 controls part of the first meshing teeth 510 to mesh with the internal teeth 213 and part of the first meshing teeth 510 to mesh with the toothed bar 311, so that the deformable section 320 is deformed to drive the two undeformable sections 310 to move in the left-right direction, and drive the two optical modules 200 to move close to or away from each other in the left-right direction.

[0049] Please refer to Figure 5 , the optical module 200 comprises an optical housing 210, the lens barrel 220 is connected with the optical housing 210 through the first tooth column 501, it can be understood that the lens barrel 220 comprises optical imaging components and other components, and the optical housing 210 provides installation and protection for the lens barrel 220. It can be understood that in the present application, the lens barrel 220 is movably mounted on the optical housing 210 to realize the adjustment of the focal length. The movable connection between the lens barrel 220 and the optical housing 210 will be described in detail below.

[0050] Please refer to Figure 5 and Figure 8 , the optical housing 210 is provided with a sliding groove 211 and a first connecting hole 212 (as shown in Figure 10 , Figure 12 ), wherein the sliding groove 211 extends along the left-right direction, and the first connecting hole 212 extends along the front-back direction. At the same time, the sliding groove 211 and the first connecting hole 212 are communicated. The first connecting hole 212 is formed with internal teeth 213 on the side of the sliding groove 211 away from the lens barrel 220, it can be understood that the first connecting hole 212 has a certain length in the front-back direction, and the sliding groove 211 divides the first connecting hole 212 into a front part and a rear part, wherein the front part is provided with the internal teeth 213, and the rear part is provided with a light hole.

[0051] The two ends of the elastic strip 302 are respectively inserted into the sliding grooves 211 of the two optical modules 200 in the left-right direction, so as to realize the connection of the elastic strip 302 and the optical shell 210. It can be understood that the elastic strip 302 can slide relative to the sliding groove 211, so that the two non-deformable segments 310 can move in the direction of approaching each other when the deformable segment 320 is switched to the deformed state. After the rear end of the first tooth column 501 is connected with the lens barrel 220, the front end of the first tooth column 501 is inserted into the first connecting hole 212 in the front-rear direction, and the first meshing teeth 510 are engaged with the inner teeth 213.

[0052] It can be understood that when the elastic strip 302 is connected with the optical shell 210, that is, when the two non-deformable segments 310 are inserted into the two sliding grooves 211, the rack 311 and the inner teeth 213 are arranged in the front-rear direction. Specifically, the inner teeth 213 are located in front of the rack 311. As shown in the front-rear direction, the axial length of the inner teeth 213 is consistent with the axial length of the first meshing teeth 510. When the first meshing teeth 510 are all engaged with the inner teeth 213 and are not engaged with the rack 311, at this time the first tooth column 501 has no cooperative relationship with the elastic strip 302; when part of the first meshing teeth 510 is engaged with the rack 311 and part is engaged with the inner teeth 213, at this time the first tooth column 501 has a cooperative relationship with the elastic strip 302. Figure 12

[0053] When the head-mounted display device is assembled, the first tooth column 501 is inserted into the first connecting hole 212, and the first meshing teeth 510 are all engaged with the inner teeth 213, at this time the elastic strip 302 is in the undeformed state, at this time the distance between the two optical modules 200 is maximum, that is, the interpupillary distance is maximum. When the interpupillary distance needs to be adjusted, the clutch structure 400 works to drive the first tooth column 501 to move towards the rear, so that part of the first meshing teeth 510 is combined with the inner teeth 213 of the optical shell 210, and part of the first meshing teeth 510 is engaged with the rack 311 of the elastic strip 302, so that the first tooth column 501 is cooperated with the elastic strip 302 while being connected with the optical shell 210.

[0054] Thus, when the interpupillary distance is adjusted, as shown in Figure 9 and Figure 10 , the deformable segment 320 of the elastic strip 302 is deformed, and the two non-deformable segments 310 of the elastic strip 302 move in the left-right direction towards each other, the rack 311 moves left and right with the left-right movement of the non-deformable segment 310, the first meshing teeth 510 engaged with the rack 311 cannot rotate with the movement of the rack 311 due to the engagement of part of the first meshing teeth 510 with the inner teeth 213, so that the first meshing teeth 510 drive the optical module 200 to move left and right, thereby realizing the adjustment of the interpupillary distance. ​

[0055] Of course, in other embodiments, the adjusting body 301 can also include a gear and two toothed plates, the two toothed plates are oppositely arranged and respectively engaged with opposite sides of the gear, rotation of the gear can drive the two toothed plates to move towards each other or away from each other. The two toothed plates are respectively matched with the first matching structure 500 or the second matching structure 600 to adjust the interpupillary distance or the focal length. In other embodiments, the adjusting body 301 can also be a belt structure, and the first matching structure 500 can be a pulley structure.

[0056] Please refer to Figure 2 , Figure 3 and Figure 5 In embodiments of the present application, the optical module 200 further includes a sliding plate 214, the optical housing 210 is fixed on the sliding plate 214, the sliding plate 214 is provided with a sliding hole 215, and a sliding rod 216 passes through the sliding hole 215 and extends from both ends of the sliding hole 215 to be fixed in the accommodating cavity 110.

[0057] It can be understood that in an embodiment, two optical modules 200 are slidingly mounted in the accommodating cavity 110. Specifically, the optical module 200 further includes a sliding plate 214, and the optical housing 210 is fixed on the sliding plate 214. In an embodiment, the optical housing 210 is fixed with the sliding plate 214 by a bolt locking structure or a clamping structure. The sliding plate 214 is provided with a sliding hole 215, and the sliding hole 215 penetrates the sliding plate 214 along the left-right direction. The sliding rod 216 passes through the sliding hole 215 and extends from both ends of the sliding hole 215, that is, both ends of the sliding rod 216 are exposed from both ends of the sliding plate 214, and both ends of the sliding rod 216 are fixed in the accommodating cavity 110. In an embodiment, the sliding rod 216 is fixed in the accommodating cavity 110 by a fixing buckle and a bolt structure. In an embodiment, along the front-rear direction, the opposite sides of the sliding plate 214 are respectively provided with sliding holes 215, and correspondingly, the two sliding rods 216 respectively extend into the two sliding holes 215 to improve the mounting stability and sliding stability of the optical module 200.

[0058] Of course, in other embodiments, the two optical modules 200 can also be rollingly mounted in the accommodating cavity 110. Specifically, a rolling groove is provided in the accommodating cavity 110, the rolling groove is provided with a slot, and a plurality of rolling balls are installed in the rolling groove. The optical module 200 is installed on the rolling groove and can be in contact with the rolling balls through the slot, so that the optical module 200 can roll relative to the accommodating cavity 110.

[0059] Please refer to Figures 5 to 7 In embodiments of the present application, the second matching structure 600 includes a second toothed column 601, the second toothed column 601 is sleeved on the first toothed column 501, the second toothed column 601 is provided with a second engagement tooth 610 and an external thread 620, the lens barrel 220 is provided with an internal thread 221, and the external thread 620 is threadedly connected with the internal thread 221. When adjusting the pupil distance, the clutch structure 400 controls the first engaging teeth 510 to engage with the inner teeth 213, and the second engaging teeth 610 to engage with the rack 311, so that the deformable section 320 is deformed to drive the two non-deformable sections 310 to move in the left-right direction, and drive the second tooth column 601 to rotate relative to the first tooth column 501, so that the inner thread 221 rotates relative to the outer thread 620, and the lens barrel 220 moves relative to the optical housing 210 in the front-back direction.

[0060] Please refer to Figure 6 and Figure 7 It can be understood that in the scheme shown in the drawings of the present application, the second matching structure 600 includes the second tooth column 601. Specifically, the second tooth column 601 adopts a hollow structure, and the second tooth column 601 is provided with the second engaging teeth 610 and the outer thread 620 at both ends thereof in the axial direction. The axial direction of the second tooth column 601 is consistent with the front-back direction, wherein the outer thread 620 is arranged close to the rear for connecting with the lens barrel 220; and the second engaging teeth 610 are arranged close to the front for connecting with the elastic strip 302. The hollow structure of the second tooth column 601 allows the second tooth column 601 to be sleeved on the first tooth column 501 and to rotate relative to the first tooth column 501. It can be understood that after the second tooth column 601 is sleeved on the first tooth column 501, at least part of the first tooth column 501 is located outside the second tooth column 601, so as to realize the front-back arrangement of the first tooth column 501 and the second tooth column 601.

[0061] Please refer to Figure 5 The lens barrel 220 is provided with the inner thread 221, and the outer thread 620 is threadedly connected with the inner thread 221. In an embodiment, the lens barrel 220 includes a body part 222 and a connecting part 223, the connecting part 223 protrudes outward relative to the body part 222, and the connecting part 223 is provided with the second connecting hole, and the second connecting hole is provided with the inner thread 221. After the second tooth column 601 is sleeved on the first tooth column 501, the whole formed is named as a tooth column unit. Then the tooth column unit is connected with the lens barrel 220, that is, the outer thread 620 of the second tooth column 601 is screwed into the inner thread 221 of the connecting part 223 of the lens barrel 220, so as to realize the movable connection of the tooth column unit with the lens barrel 220. It can be understood that the lens barrel 220 is threadedly connected with the second tooth column 601, and the depth of the outer thread 620 of the second tooth column 601 screwed into the inner thread 221 is different, so that the distance between the lens barrel 220 and the human eye is different, thereby the focal length can be adjusted.

[0062] Please refer to Figure 11 and Figure 12When the focal length needs to be adjusted, the clutch structure 400 controls all the first engaging teeth 510 to engage with the inner teeth 213, so that the second engaging teeth 610 can engage with the toothed bars 311, and the second tooth column 601 can cooperate with the elastic strip 302. When the deformable section 320 is deformed, in the left-right direction, the two undeformable sections 310 move towards each other, so that the two toothed bars 311 move towards each other, and the second engaging teeth 610 engaged with the toothed bars 311 rotate relative to the first tooth column 501. Since the first tooth column 501 engages with the inner teeth 213 of the optical housing 100, the first tooth column 501 cannot move relative to the optical housing 100, so that the second tooth column 601 cannot move in the left-right direction. At this time, the movement of the toothed bars 311 is moving in the left-right direction, and the movement of the second tooth column 601 is rotating around the first tooth column 501, so that the lens barrel 220 threadedly connected with the external thread 620 of the second tooth column 601 moves in the front-back direction, thereby achieving the adjustment of the focal length.

[0063] Of course, in other embodiments, the first cooperating structure 500 and the second cooperating structure 600 can also be arranged side by side in the left-right direction, the first cooperating structure 500 is a first tooth shaft, and the second cooperating structure 600 includes a fixed shaft and a rotating shaft sleeved on the fixed shaft, the axial ends of the rotating shaft are respectively provided with a tooth portion and a threaded portion, and the threaded portion is used for threadedly connecting with the lens barrel 220. The clutch structure 400 is connected with the first cooperating structure 500 and the second cooperating structure 600 respectively and can drive them to move in the up-down direction. In an embodiment, when the pupil distance is adjusted, the clutch structure 400 drives the first cooperating structure 500 to move upwards at the same time, and drives the second cooperating structure 600 to move downwards, so that the toothed bars 311 on the adjusting body 301 engage with the first tooth shaft. At this time, the first tooth shaft is fixed with the optical housing 210 or the lens barrel 220, so that the first tooth shaft can move with the left-right movement of the toothed bars 311 and cannot rotate relative to the toothed bars 311. When the focal length is adjusted, the clutch structure 400 drives the first cooperating structure 500 to move downwards at the same time, and drives the second cooperating structure 600 to move upwards, so that the toothed bars 311 on the adjusting body 301 engage with the tooth portion.

[0064] Please refer to Figure 7 In the embodiments of the present application, the first tooth column 501 is provided with a first optical axis section 520 for sleeving the second tooth column 601, and the end of the first optical axis section 520 away from the first engaging tooth 510 is provided with a fixed hole 521, and the fixed pin 530 is fixed in the fixed hole 521, for limiting the axial movement of the second tooth column 601 relative to the first optical axis section 520.

[0065] In the scheme shown in the figures of the present application, the first optical axis segment 520 is located on the side of the first engaging tooth 510 facing the lens barrel 220. When the second tooth column 601 is sleeved on the first optical axis segment 520, the rearward end face of the second engaging tooth 610 is arranged opposite to the forward end face of the first engaging tooth 510, and there is a certain gap between the two, so that the second tooth column 601 can rotate relative to the first optical axis segment 520. It can be understood that, in order to ensure the cooperation effect of the second tooth column 601 and the elastic strip 302, the second tooth column 601 needs to be able to rotate relative to the first optical axis segment 520, but cannot move axially relative to the first optical axis segment 520. Correspondingly, the gap in the axial direction between the first engaging tooth 510 and the second engaging tooth 610 only needs to be able to meet the rotation of the second tooth column 601 relative to the first optical axis segment 520, and does not need to reserve too long a gap.

[0066] It can be understood that the second tooth column 601 needs to be able to rotate relative to the first optical axis segment 520, but cannot move axially relative to the first optical axis segment 520. In order to realize the circumferential rotation of the second tooth column 601 and limit the axial movement of the second tooth column 601, the present application is provided with a fixed hole 521 at the end of the first optical axis segment 520 away from the first engaging tooth 510. It can be understood that the fixed hole 521 is arranged in the form of a blind hole. The fixed pin 530 penetrates the hollow of the second tooth column 601 and is fixed in the fixed hole 521. In an embodiment, the fixed pin 530 is provided with a thread, and the fixed hole 521 is also provided with a thread, and the fixed hole 521 and the fixed pin 530 are fixedly connected through the threads. Of course, the fixed pin 530 can also be fixed to the fixed hole 521 through gluing and the like. It can be understood that the fixed pin 530 is fixed to the first tooth column 501, and the fixed pin 530 cannot rotate with the rotation of the second tooth column 601. In the radial direction of the second tooth column 601, the outer diameter of the fixed pin 530 is greater than the inner diameter of the second tooth column 601, so as to limit the axial movement of the second tooth column 601 relative to the first optical axis segment 520, thereby avoiding the second tooth column 601 from being detached from the first optical axis segment 520. At the same time, the outer diameter of the fixed pin 530 is smaller than the outer diameter of the second tooth column 601, that is, the outer diameter of the fixed pin 530 is smaller than the outer diameter of the outer thread 620, so as to avoid the fixed pin 530 interfering with the threaded connection of the outer thread 620 and the inner thread 221.

[0067] Of course, in other embodiments, a limiting hole can also be provided at the end of the first optical axis segment 520 away from the first engaging tooth 510. When the second tooth column 601 is sleeved on the first optical axis segment 520, the limiting hole can expose the second tooth column 601, and then a limiting pin is inserted into the limiting hole, thereby avoiding the second tooth column 601 from being detached from the first optical axis segment 520.

[0068] Please refer to Figure 4In the embodiment of the present application, the non-deformable section 310 is provided with a limiting groove 312, one groove wall of the limiting groove 312 is provided with the rack 311, and the two opposite groove walls adjacent to the rack 311 are used for stopping the second engaging teeth 610.

[0069] It can be understood that when the focal length is adjusted, the rack 311 of the elastic strip 302 will move in the left-right direction relative to the second engaging teeth 610 when the elastic strip 302 is matched with the second tooth column 601. In order to avoid disengagement of the rack 311 and the second engaging teeth 610, in the scheme shown in the drawings of the present application, the non-deformable section 310 is provided with a limiting groove 312, the groove depth direction of the limiting groove 312 is the front-back direction, and when the tooth column unit extends into the first connecting hole 212, it needs to pass through the limiting groove 312. In the scheme shown in the drawings of the present application, the limiting groove 312 has a top wall, a bottom wall and left and right side walls, one groove wall of the limiting groove 312 is provided with the rack 311, and in an embodiment, the limiting groove 312 is provided with the rack 311 on the top wall. Of course, the rack 311 can also be provided on the bottom wall. Of course, in other embodiments, the limiting groove 312 can only have a top wall or a bottom wall, and the left and right side walls are used for stopping the second engaging teeth 610, so as to avoid disengagement of the second engaging teeth 610 and the rack 311, and avoid disconnection of the tooth column unit and the rack 311.

[0070] Please refer to Figure 6 , Figure 10 and Figure 12 In the embodiment of the present application, the second tooth column 601 is provided with a second optical axis section 630 between the second engaging teeth 610 and the external thread 620, and the second optical axis section 630 is provided with a first step 631; the optical shell 210 is provided with a limiting hole 217 in communication with the first connecting hole 212, and the limiting pin 218 extends into the limiting hole 217. When the elastic strip 302 is matched with the first tooth column 501, the limiting pin 218 abuts against the first step 631; when the elastic strip 302 is matched with the second tooth column 601, the limiting pin 218 abuts against one end of the external thread 620 facing the second optical axis section 630.

[0071] It can be understood that the clutch structure 400 is used for switching the matching object of the elastic strip 302, that is, the clutch structure 400 is used for controlling whether the elastic strip 302 matches with the first tooth column 501 or the second tooth column 601. In order to ensure that the clutch structure 400 is switched to the position after switching the matching object, that is, when the elastic strip 302 matches with the first tooth column 501 to adjust the pupil distance, it is necessary to ensure that the rack 311 is engaged with part of the first meshing teeth 510, and the inner tooth 213 is engaged with part of the first meshing teeth 510; when the elastic strip 302 matches with the second tooth column 601 to adjust the focal length, it is necessary to ensure that the rack 311 is engaged with the second meshing teeth 610, and the inner tooth 213 is engaged with all the first meshing teeth 510. Therefore, the application is provided with a limiting pin 218 and a limiting hole 217 structure.

[0072] Specifically, as shown in Figure 6 , the second tooth column 601 is provided with a second optical axis segment 630 between the second meshing teeth 610 and the external thread 620, and the second optical axis segment 630 is provided with a first step 631. At the same time, the optical shell 210 is provided with a limiting hole 217 (as shown in Figure 10 , Figure 12 ), which is in communication with the first connecting hole 212. The limiting pin 218 extends into the limiting hole 217, and the end of the limiting pin 218 extending into the limiting hole 217 can be exposed from the limiting hole 217. In this way, when the elastic strip 302 matches with the first tooth column 501, that is, the rack 311 is engaged with part of the first meshing teeth 510, as shown in Figure 10 , the limiting pin 218 can be in abutment with the first step 631, thereby reminding the user to switch to the position, avoiding the first tooth column 501 from being excessively adjusted backward to be out of the matching range with the rack 311. When the elastic strip 302 matches with the second tooth column 601, that is, the rack 311 is engaged with the second meshing teeth 610, as shown in Figure 12 , the limiting pin 218 is in abutment with the end of the external thread 620 facing the end of the second meshing teeth 610, thereby reminding the user to switch to the position, avoiding the second tooth column 601 from being excessively adjusted forward to be engaged with the inner tooth 213, thereby affecting the rotation of the second tooth column 601 around the first optical axis segment 520.

[0073] Please refer to Figure 5 and Figure 10 , in the embodiment of the application, the optical shell 210 includes a seat body 201, a sleeve 202, and a connecting cylinder 203 connecting the seat body 201 and the sleeve 202, the first connecting hole 212 penetrates through the seat body 201, the connecting cylinder 203 and the sleeve 202, and the lens barrel 220 is arranged in the sleeve 202 and can move along the front and back directions relative to the sleeve 202; The second step 204 is arranged in the connecting cylinder 203, and when the elastic strip 302 cooperates with the first tooth column 501, the second step 204 is used to abut against one end of the second meshing tooth 610 facing the external thread 620.

[0074] It can be understood that, in the scheme shown in the drawings of the present application, as shown in Figure 5 、 Figure 9 The optical shell 210 includes the seat body 201, the connecting cylinder 203 and the sleeve 202 connected in sequence, wherein the first connecting hole 212 penetrates through the seat body 201, the connecting cylinder 203 and the sleeve 202, the seat body 201 is provided with the sliding groove 211, and the connecting cylinder 203 is provided with the limiting hole 217. The sleeve 202 is provided in a hollow manner to provide a containing space for the lens barrel 220. It can be understood that the lens barrel 220 needs to be movable relative to the sleeve 202 to realize the adjustment of the focal length. That is, a moving space is arranged between the outer wall of the lens barrel 220 and the inner wall of the sleeve 202 to satisfy the forward and backward movement of the lens barrel 220.

[0075] Referring to Figure 10 , the inside of the connecting cylinder 203 is provided with the second step 204, and the second step 204 is arranged protruding towards the inside of the connecting cylinder 203. When the elastic strip 302 cooperates with the first tooth column 501, the side of the second step 204 facing the seat body 201 abuts against the side of the second meshing tooth 610 facing the external thread 620, thereby further improving the reliability of the cooperation of the elastic strip 302 with the first tooth column 501 to the right position. Meanwhile, the limiting hole 217 is arranged at the second step 204, and the arrangement of the second step 204 is also beneficial to improving the structural strength of the connecting cylinder 203.

[0076] Referring to Figure 10 and Figure 12 , in the embodiment of the present application, the clutch structure 400 includes the first magnetic member 410 and the second magnetic member 420 arranged oppositely, at least one of the first magnetic member 410 and the second magnetic member 420 is an electromagnet, the first magnetic member 410 is arranged at one end of the first tooth column 501 provided with the first meshing tooth 510, and the second magnetic member 420 is arranged at one end of the optical shell 210 provided with the internal tooth 213; When the first magnetic member 410 and the second magnetic member 420 have the same polarity, the first meshing tooth 510 moves away from the second magnetic member 420 to make part of the first meshing tooth 510 mesh with the internal tooth 213 and part mesh with the tooth bar 311; When the first magnetic member 410 and the second magnetic member 420 have opposite polarities, the first meshing tooth 510 meshes with the internal tooth 213, and the second meshing tooth 610 meshes with the tooth bar 311.

[0077] It can be understood that in the scheme shown in the figure of the present application, the clutch structure 400 adopts a magnetic structure, which includes a first magnetic member 410 and a second magnetic member 420 arranged oppositely, and at least one of the first magnetic member 410 and the second magnetic member 420 is an electromagnet. The first magnetic member 410 is mounted on the end face of one end of the first tooth column 501 provided with the first engagement tooth 510, and the second magnetic member 420 is arranged on the end face of one end of the optical shell 210 provided with the inner tooth 213. In this way, when the first tooth column 501 extends into the first connecting hole 212, the first magnetic member 410 and the second magnetic member 420 can be arranged oppositely.

[0078] In an embodiment, the first tooth column 501 needs to move in the front-back direction due to the switching of the interpupillary distance adjustment function and the focal length adjustment function, so the first magnetic member 410 on the first tooth column 501 is configured as a permanent magnet, and the second magnetic member 420 on the electrical shell is configured as an electromagnet. Specifically, the first tooth column 501 is provided with a mounting hole at one end provided with the first engagement tooth 510, and the permanent magnet is mounted in the mounting hole by means of adhesion, interference fit, etc. In an embodiment, in order to ensure the adsorption or repulsion effect of the first magnetic member 410 and the second magnetic member 420, the outer surface of the permanent magnet is flush with the end face of the first tooth column 501. In an embodiment, the seat body 201 of the optical shell 210 is mounted with an optical circuit board 103 on the side away from the sleeve 202, and the second magnetic member 420, i.e. the electromagnet, is arranged on the side of the optical circuit board 103 facing the seat body 201. In an embodiment, the optical circuit board 103 is fixed on the seat body 201 by means of bolts. It can be understood that the optical circuit board 103 needs to be electrically connected with the main circuit board 102, and in an embodiment, the optical circuit board 103 is electrically connected with the main circuit board 102 through a connecting circuit board 104.

[0079] Of course, in other embodiments, the first magnetic member 410 and the second magnetic member 420 can both be electromagnets, or the first magnetic member 410 is an electromagnet and the second magnetic member 420 is a magnetic structure member containing iron, cobalt, nickel, etc.

[0080] In this way, by controlling the polarity of the first magnetic member 410 and the second magnetic member 420, the matching object of the elastic strip 302 is switched. As shown in Figure 10 When the polarity of the first magnetic member 410 and the second magnetic member 420 is the same, they repel each other, and the first tooth column 501 is subjected to a backward thrust, so that the first tooth column 501 moves in a direction away from the second magnetic member 420, so that part of the first engagement tooth 510 engages with the inner tooth 213, and part of the first engagement tooth 510 can engage with the toothed bar 311 of the elastic strip 302, thereby adjusting the interpupillary distance.

[0081] As shown in Figure 12As shown, when the polarities of the first magnetic member 410 and the second magnetic member 420 are opposite, the first magnetic member 410 and the second magnetic member 420 are attracted to each other, the first tooth column 501 is subjected to a rearward suction force, so that all the first engagement teeth 510 are engaged with the inner teeth 213, and the second engagement teeth 610 can be engaged with the inner teeth 213 of the elastic strip 302, so that the focal length is adjusted.

[0082] Of course, in other embodiments, the clutching structure 400 can also be an electric driving structure, for example, the electric driving structure includes a motor and a connecting rod, one end of the connecting rod is connected with the motor, and the other end of the connecting rod is connected with the first tooth column 501. The motor drives the connecting rod to move in the front-rear direction, so as to switch the engagement object of the elastic strip 302.

[0083] Please refer to Figure 2 and Figure 3 In the embodiments of the present application, the adjusting assembly 300 further includes a driving structure 700, the driving structure 700 is used to drive the deformation of the deformable section 320 and control the deformation size of the deformable section 320, so as to control the adjustment size of the pupil distance or the focal length. In this way, the driving structure 700 drives the deformation of the elastic strip 302, so as to drive the adjustment of the pupil distance or the focal length. Meanwhile, the driving structure 700 can also control the deformation degree of the elastic strip 302, so as to control the adjustment degree of the pupil distance and the focal length, thereby facilitating the multi-gear or stepless adjustment of the pupil distance and the focal length.

[0084] In the embodiments of the present application, the driving structure 700 includes a third magnetic member 710 and a fourth magnetic member 720 which are oppositely arranged, at least one of the third magnetic member 710 and the fourth magnetic member 720 is an electromagnet, the third magnetic member 710 is arranged on the deformable section 320, and the fourth magnetic member 720 is arranged in the accommodating cavity 110; when the polarities of the third magnetic member 710 and the fourth magnetic member 720 are the same, the deformable section 320 is deformed in a direction away from the fourth magnetic member 720.

[0085] It can be understood that, in the scheme shown in the drawings of the present application, the driving structure 700 adopts a magnetic structure. The magnetic structure includes a third magnetic member 710 and a fourth magnetic member 720 which are oppositely arranged. In an embodiment, in order to realize that the deformation of the deformable section 320 can drive the two non-deformable sections 310 to move in the left-right direction, the third magnetic member 710 and the fourth magnetic member 720 are arranged in the up-down direction.

[0086] In an embodiment, since the deformable section 320 of the elastic strip 302 needs to be deformed, the third magnetic member 710 is configured as a permanent magnet, and the fourth magnetic member 720 is configured as an electromagnet. In an embodiment, the deformable section 320 of the elastic strip 302 is provided with a mounting hole, and the third magnetic member 710 is mounted in the mounting hole by means of adhesion, interference fit or the like. The accommodating cavity 110 is provided with a main circuit board 102, and the fourth magnetic member 720 is mounted on one side of the main circuit board 102 which faces the deformable section 320.

[0087] Of course, in other embodiments, the third magnetic member 710 and the fourth magnetic member 720 can both be electromagnets, or the third magnetic member 710 can be a magnetic structural member made of iron, cobalt, nickel, or the like, and the fourth magnetic member 720 can be an electromagnet.

[0088] In this way, when the polarities of the third magnetic member 710 and the fourth magnetic member 720 are the same, the two repel each other, so that the deformable section 320 is deformed by arching, thereby driving the two undeformable sections 310 to move in the direction of approaching each other. It can be understood that the adjustment size of the pupil distance and the focal length can be controlled by controlling the polarity of the electromagnet in the third magnetic member 710 and the fourth magnetic member 720, to control the degree of deformation of the deformable section 320, and thus control the adjustment size of the pupil distance and the focal length. When the polarities of the third magnetic member 710 and the fourth magnetic member 720 are opposite, the two are attracted to each other, the deformable section 320 is in a straight line and does not deform, and the pupil distance and the focal length of the head-mounted display device can return to the initial state.

[0089] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the shell 100 is provided with a touch area 120, and a touch circuit board 101 is installed in the accommodating cavity 110 opposite the touch area 120, and the touch circuit board 101 is electrically connected to the third magnetic member 710 or the fourth magnetic member 720.

[0090] It can be understood that, for the convenience of adjusting the pupil distance and the focal length, the shell 100 is provided with a touch area 120, and the touch area 120 is installed with a touch screen. A touch circuit board 101 is installed in the accommodating cavity 110 opposite the touch area 120, and the touch circuit board 101 is electrically connected to the third magnetic member 710 or the fourth magnetic member 720 through a connection circuit board 104, thereby controlling the working state of the electromagnet in the third magnetic member 710 and the fourth magnetic member 720, thereby controlling the deformation and deformation degree of the deformable section 320 of the elastic strip 302. Because the main circuit board 102 is electrically connected to the optical circuit board 103, the pupil distance and the focal length adjustment switching can also be realized through the touch area 120.

[0091] Specifically, in an embodiment, one click can be used to adjust the pupil distance, two clicks can be used to adjust the focal length, sliding forward can be used to increase, and sliding backward can be used to decrease. The control logic of the touch area 120 is not limited here.

[0092] Please refer to Figure 2 and Figure 13In the embodiment of the present application, the fixing seat 800 is arranged in the accommodating cavity 110, the fixing seat 800 comprises a seat body 810 and a seat support 820 fixed on the seat body 810, and the two optical modules 200 are movably arranged on the seat body 810 and located on opposite sides of the seat support 820, and opposite ends of the seat support 820 are formed with positioning grooves 821, and the two ends of the elastic strip 302 respectively extend into the sliding grooves 211 through the positioning grooves 821.

[0093] It can be understood that, in order to facilitate the installation of the optical modules 200 and the adjusting assembly 300, the fixing seat 800 is arranged in the accommodating cavity 110. The fixing seat 800 comprises a seat body 810 and a seat support 820. In an embodiment, the seat support 820 and the seat body 810 are in an integral structure, and of course, they can also be in a split structure and connected by bolts or the like. In the left-right direction, the seat support 820 is arranged at the middle position of the seat body 810, and the two optical modules 200 are movably arranged on the seat body 810 and located on opposite sides of the seat support 820. Specifically, the sliding rod 216 mentioned above is fixed on the seat body 810, and the sliding plate 214 can slide relative to the seat body 810.

[0094] In an embodiment, in the up-down direction, the height of the seat support 820 is higher than that of the seat body 810, and the seat support 820 is used for mounting the elastic strip 302. At the same time, the main circuit board 102 is also arranged on the seat support 820, so that the fourth magnetic member 720 can be arranged opposite to the third magnetic member 710. In the scheme shown in the figure of the present application, the deformable section 320 of the elastic member can be arched upward to be deformed. In order to ensure the deformation direction of the deformable section 320 and ensure the adjustment effect of the pupil distance and the focal length, the present application sets a guide for the deformation of the deformable section 320. Specifically, the opposite sides of the seat support 820 are provided with the positioning grooves 821, and the two ends of the elastic strip 302 respectively extend into the two sliding grooves 211 through the two positioning grooves 821, thereby improving the reliability of the pupil distance and the focal length adjustment.

[0095] Please refer to Figure 13 Figure 13 In the embodiment of the present application, the two ends of the seat support 820 are respectively provided with two oppositely arranged support arms 830, the two support arms 830 are respectively provided with positioning holes 831, a rotating cylinder 840 is arranged between the two support arms 830, and a connecting pin 850 passes through the two positioning holes 831 and the rotating cylinder 840, so that the rotating cylinder 840 can rotate relative to the support arms 830, and the rotating cylinder 840 and the two support arms 830 are formed with the positioning grooves 821.

[0096] It can be understood that the material of the deformable section 320 is generally soft to facilitate the deformation of the deformable section 320. In order to avoid the pressing of the slot wall of the positioning slot 821 on the deformable section 320 to cause the bending or deformation of the deformable section 320 in the process of arching upward, in an embodiment, the upper portion of the positioning slot 821 is provided with a rotating cylinder 840. Specifically, the seat support 820 is provided with two oppositely arranged support arms 830 at two ends thereof, the two support arms 830 are arranged in a front-rear direction, the two support arms 830 are each provided with a positioning hole 831, and the rotating cylinder 840 is installed between the two support arms 830. Meanwhile, the rotating cylinder 840 is also provided with a positioning hole 831, and the positioning pin passes through the support arms 830 and the rotating cylinder 840, so as to install the rotating cylinder 840 on the two support arms 830 and enable the rotating cylinder 840 to rotate relative to the positioning pin. In this way, when the deformable section 320 is deformed by arching upward, the rotating cylinder 840 can rotate with the movement of the two ends of the elastic strip 302 moving close to each other, so as to avoid the hard contact between the rotating cylinder 840 and the deformable section 320 at the position of the rotating cylinder 840, and avoid the bending of the deformable section 320 at the position of the rotating cylinder 840.

[0097] In an embodiment, the rotating cylinder 840 is made of soft material, such as silica gel, rubber, etc. In this way, the hard contact between the rotating cylinder 840 and the deformable section 320 is further avoided, and the accidental bending of the deformable section 320 at the position of the rotating cylinder 840 is avoided.

[0098] The above description is only an exemplary embodiment of the present application, and does not limit the protection scope of the present application. Any equivalent structural transformation made according to the technical concept of the present application, or direct / indirect application in other related technical fields is included in the protection scope of the present application.

Claims

1. A head-mounted display device, comprising: The application relates to a housing, two optical modules and an adjusting assembly. The housing has a containing cavity formed therein. The two optical modules are spaced apart in the left-right direction and movably arranged in the containing cavity. The adjusting assembly includes an adjusting body movably arranged in the containing cavity, a clutch structure arranged in the containing cavity, and a first matching structure and a second matching structure corresponding to each optical module. When the interpupillary distance of the two optical modules is adjusted, the clutch structure controls the first matching structure and the second matching structure to move in the front-back direction. When the focal length of the optical module is adjusted, the clutch structure controls the first matching structure and the second matching structure to move in the front-back direction.

2. The head-mounted display device of claim 1, wherein, The adjusting body is configured as an elastic strip.

3. The head-mounted display device of claim 2, wherein, The first matching structure includes a first tooth column.

4. The head-mounted display device of claim 3, wherein, The optical module is provided with an inner tooth.

5. The head-mounted display device of claim 4, wherein, The optical module further includes an optical shell. The mirror tube is connected with the optical shell through the first tooth column. The elastic strip is provided with non-deformable segments at both ends and a deformable segment between the two non-deformable segments.

6. The head-mounted display device of claim 5, wherein, The first tooth column is provided with a first meshing tooth at one end. The first meshing tooth is meshed with the tooth bar. The first meshing tooth is limited in rotation relative to the tooth bar. The first meshing tooth can move in the front-back direction relative to the inner tooth. The optical shell is provided with a sliding groove extending in the left-right direction and a first connecting hole extending in the front-back direction. The first connecting hole is connected with the sliding groove. The first tooth column is inserted into the first connecting hole. When the interpupillary distance is adjusted, part of the first meshing tooth is meshed with the inner tooth, and part is meshed with the tooth bar. The deformable segment is deformed to drive the two non-deformable segments to move in the left-right direction. The second matching structure includes a second tooth column. The second tooth column is sleeved on the first tooth column. The second tooth column is provided with a second meshing tooth and an external thread. The mirror tube is provided with an internal thread. The external thread is threadedly connected with the internal thread. The second tooth column is meshed with the internal thread when the focal length is adjusted. When the pupil distance is adjusted, the clutching structure controls the first engaging teeth to engage with the internal teeth and the second engaging teeth to engage with the rack gear, so that the deformable section is deformed to drive the two non-deformable sections to move in the left-right direction, drive the second tooth column to rotate relative to the first tooth column, drive the internal thread to rotate relative to the external thread, and drive the lens barrel to move relative to the optical housing in the front-back direction.

7. The head-mounted display device of claim 6, wherein, The first tooth column is further provided with a first optical axis section for sleeving the second tooth column, and an end of the first optical axis section away from the first engaging teeth is provided with a fixing hole, and a fixing pin is fixed in the fixing hole and used for limiting the axial movement of the second tooth column relative to the first optical axis section.

8. The head-mounted display device of claim 6, wherein, The non-deformable section is provided with a limiting groove, one groove wall of the limiting groove is provided with the rack gear, and two opposite groove walls adjacent to the rack gear are used for stopping the second engaging teeth; and / or The second tooth column is provided with a second optical axis section between the second engaging teeth and the external thread, and the second optical axis section is provided with a first step; the optical housing is provided with a limiting hole in communication with the first connecting hole, and a limiting pin extends into the limiting hole; When the elastic strip cooperates with the first tooth column, the limiting pin abuts against the first step; when the elastic strip cooperates with the second tooth column, the limiting pin abuts against an end of the external thread facing the second optical axis section; and / or The optical housing comprises a seat body, a sleeve and a connecting barrel connecting the seat body and the sleeve, the first connecting hole penetrates through the seat body, the connecting barrel and the sleeve, and the lens barrel is arranged in the sleeve and can move relative to the sleeve in the front-back direction; The connecting barrel is provided with a second step, and when the elastic strip cooperates with the first tooth column, the second step is used for abutting against an end of the second engaging teeth facing the external thread.

9. The head-mounted display device of claim 6, wherein, The clutching structure comprises oppositely arranged first and second magnetic members, at least one of the first and second magnetic members is an electromagnet, the first magnetic member is arranged on the first tooth column, and the second magnetic member is arranged on the optical housing; When the first and second magnetic members have the same polarity, the first engaging teeth move away from the second magnetic member, so that part of the first engaging teeth engages with the internal teeth and part of the first engaging teeth engages with the rack gear; When the first and second magnetic members have opposite polarities, the first engaging teeth engage with the internal teeth, and the second engaging teeth engage with the rack gear.

10. The head-mounted display device of claim 5, wherein, The adjusting assembly further comprises a driving structure for driving the deformation of the deformable section and controlling the deformation size of the deformable section, so as to control the adjustment size of the pupil distance or the focal length.

11. The head-mounted display device of claim 10, wherein, The driving structure comprises oppositely arranged third and fourth magnetic members, at least one of the third and fourth magnetic members is an electromagnet, the third magnetic member is arranged on the deformable section, and the fourth magnetic member is arranged in the accommodating cavity; when the third and fourth magnetic members have the same polarity, the deformable section is deformed in a direction away from the fourth magnetic member.

12. The head-mounted display device of claim 11, wherein, The shell is provided with a touch area, a touch circuit board is arranged opposite to the touch area in the accommodating cavity, and the touch circuit board is electrically connected with the third magnetic member or the fourth magnetic member.

13. The head-mounted display device of claim 5, wherein, The accommodating cavity is provided with a fixing seat, the fixing seat comprises a seat body and a seat support fixed to the seat body, the two optical modules are movably arranged on the seat body and located on opposite sides of the seat support, opposite ends of the seat support are formed with positioning grooves, and the two ends of the elastic strip are respectively inserted into the sliding grooves through the positioning grooves.

14. The head-mounted display device of claim 13, wherein, Opposite ends of the seat support are respectively provided with two oppositely arranged support arms, the two support arms are both provided with positioning holes, a rotating cylinder is arranged between the two support arms, a connecting pin penetrates through the two positioning holes and the rotating cylinder, so that the rotating cylinder can rotate relative to the support arms, and the rotating cylinder and the two support arms form the positioning grooves.

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