CN117055233A - Pupil distance adjustable head-mounted display device - Google Patents
Pupil distance adjustable head-mounted display device Download PDFInfo
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- CN117055233A CN117055233A CN202311324747.8A CN202311324747A CN117055233A CN 117055233 A CN117055233 A CN 117055233A CN 202311324747 A CN202311324747 A CN 202311324747A CN 117055233 A CN117055233 A CN 117055233A
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- display device
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- 210000001747 pupil Anatomy 0.000 title claims description 27
- 230000001276 controlling effect Effects 0.000 claims abstract description 73
- 230000001105 regulatory effect Effects 0.000 claims abstract description 69
- 230000000712 assembly Effects 0.000 claims abstract description 35
- 238000000429 assembly Methods 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 25
- 238000013519 translation Methods 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 46
- 229910052799 carbon Inorganic materials 0.000 claims description 46
- 230000017525 heat dissipation Effects 0.000 claims description 40
- 238000007639 printing Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 12
- 230000033228 biological regulation Effects 0.000 claims description 6
- 210000003128 head Anatomy 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
Abstract
The application provides a head-mounted display device with adjustable interpupillary distance, which comprises a display shell, a base plate, two lens cone assemblies and two groups of regulating and controlling devices, wherein the display shell comprises an installation space and two assembly holes, and the assembly holes are communicated to the installation space; the base plate is arranged in the installation space and is connected to the inner wall of the display shell; the two lens cone assemblies can be arranged in the assembly holes in a translation mode; each regulating and controlling device comprises a resistance changing component, the resistance changing component comprises regulating and controlling sliding blocks, and the regulating and controlling sliding blocks in two groups of regulating and controlling devices are respectively connected to the two lens barrel components; when the adjusting and controlling sliding block drives the lens barrel assembly to translate, the resistance value of the variable resistance assembly is changed, so that the interpupillary distance of the lens barrel assembly can be obtained according to the resistance value, and the technical problem that the adjusting accuracy is low due to the fact that the existing head-mounted display device cannot independently control the adjusting distance of the left lens barrel assembly and the right lens barrel assembly is solved.
Description
Technical Field
The application relates to the technical field of head-mounted display equipment, in particular to head-mounted display equipment with adjustable interpupillary distance.
Background
The head-mounted display device (namely the VR head display and the VR glasses) is projected to the retina of human eyes through the display screen and the visual system, and the essence of the head-mounted display device is that the head-mounted display device takes a user visual angle as a main body, can observe objects in a three-dimensional space in real time and without limitation, and provides immersion experience for users. The virtual display technology is widely applied to a plurality of fields such as entertainment, military training, medical training, three-dimensional virtual display of products and the like.
Because of the difference of the interpupillary distances of different users, the head-mounted display device is required to have the function of interpupillary distance compatibility for the clients adapting to the different interpupillary distances.
In the prior art, two lens cone assemblies are respectively connected with a rack, gears meshed with the two racks are arranged in a display shell, and when the lens cone assemblies are synchronously pushed and pulled, the two racks can synchronously rotate relative to the gears, so that the distance between the two lens cone assemblies is adjusted, and the head-mounted display device can adapt to the interpupillary distance of a user.
However, the left pupil distance and the right pupil distance of the human eye are different within a certain range, when the two groups of lens barrel assemblies are synchronously adjusted by utilizing the gears, the adjusting distance of the left lens barrel assembly and the right lens barrel assembly cannot be independently controlled, and meanwhile, the adjusting gear of the lens barrel assembly is limited by the tooth width of the rack, so that the adjusting precision of the head-mounted display device is lower.
Disclosure of Invention
The application provides a head-mounted display device with an adjustable interpupillary distance, which aims to solve the technical problem that the existing head-mounted display device cannot independently control the adjusting distance of a left lens barrel component and a right lens barrel component, so that the adjusting precision is low.
The application provides a head-mounted display device with adjustable interpupillary distance, which comprises a display shell, a base plate, two lens cone assemblies and two groups of regulating and controlling devices, wherein the display shell comprises an installation space and two assembly holes, and the assembly holes are communicated to the installation space; the base plate is arranged in the installation space and is connected to the inner wall of the display shell; the two lens cone assemblies can be arranged in the assembly holes in a translation mode; each regulating and controlling device comprises a resistance changing component, the resistance changing component comprises regulating and controlling sliding blocks, and the regulating and controlling sliding blocks in two groups of regulating and controlling devices are respectively connected to the two lens barrel components; when the regulating and controlling sliding block drives the lens barrel assembly to translate, the resistance value of the variable resistance assembly is changed, so that the interpupillary distance of the lens barrel assembly can be obtained according to the resistance value;
the varistor assembly further comprises a circuit board and a conductive pole piece, wherein the circuit board comprises a carbon film layer, and the circuit board is mounted on the substrate; a conductive pole piece is fixed to the regulating slider, and a part of the conductive pole piece is attached to the carbon film layer so that the conductive pole piece is in electrical communication with the carbon film layer; when the regulating and controlling sliding block is moved, the conductive pole piece is moved to different positions of the carbon film layer, so that the resistance value of the variable resistance component is changed;
the conductive pole piece is I-shaped and comprises a cross beam and two sliding sheets, the cross beam is a curved surface, and the concave surface of the cross beam faces the circuit board; the two sliding sheets are respectively connected to two ends of the cross beam, and each sliding sheet is bent towards the circuit board to form at least one concave part; the carbon film layer comprises two carbon film printing layers which are not conducted mutually, and the concave parts of the two sliding sheets are respectively attached to the two carbon film printing layers, so that the two carbon film printing layers can be conducted through the conductive pole pieces.
Optionally, the conductive pole piece has elastic deformation, and when the conductive pole piece is attached to the carbon film layer, the conductive pole piece is in a pressed state, and a pre-pressing elastic quantity is maintained.
Optionally, the regulating slider and the bending part of the cross beam are integrally formed.
Optionally, a perpendicular bisector of the line connecting the central points of the two lens barrel assemblies is defined as a datum line, and the two groups of regulating and controlling devices are symmetrically arranged about the datum line.
Optionally, each regulating device further comprises a base, a driving motor, a screw rod and a first limiting rod, wherein the base is mounted on the base plate; a drive motor mounted to the base; the screw rod is rotatably connected to the base, and one end of the screw rod is connected to the driving motor; the regulating and controlling sliding block is provided with a first through hole, and the screw rod penetrates through the first through hole and is in threaded connection with the first through hole; the first limiting rod is mounted on the base, and the central line of the first limiting rod is parallel to the central line of the screw rod; the regulating and controlling sliding block is provided with a second through hole, and the first limiting rod penetrates through the second through hole; when the driving motor controls the screw to rotate, the regulating and controlling sliding block drives the lens barrel assembly to translate, so that the resistance value of the variable resistance assembly is changed.
Optionally, each of the regulation and control devices further comprises a controller and a resistance measurement device, and the resistance changing component is electrically connected to the controller; the resistance measuring device is electrically connected to the variable resistance component and the controller and is used for detecting the resistance value of the variable resistance component in real time and transmitting the resistance value to the controller so that the controller can acquire the interpupillary distance of the lens barrel component according to the resistance value.
Optionally, the moving direction of the lens barrel assembly and the moving direction of the regulating and controlling sliding block form an included angle, and the included angle is 4-15 degrees.
Optionally, each adjusting and controlling device further comprises a linkage seat and a second limiting rod, and the lens barrel assembly is fixedly connected to the adjusting and controlling sliding block through the linkage seat; the second limiting rod is connected to the base, the linkage seat is provided with a third through hole, and the second limiting rod passes through the third through hole; the lens barrel assembly and the installation surface of the linkage seat are defined as reference planes, the center line of the second limiting rod is intersected with the reference planes to form the included angle, and the center line of the second limiting rod is parallel to the moving direction of the regulating and controlling sliding block.
Optionally, the head-mounted display device further includes two or more cameras, at least one of the cameras is mounted to one of the lens barrel assemblies, and lenses of the cameras are disposed corresponding to the lens barrel assemblies.
Optionally, the head-mounted display device with adjustable interpupillary distance further comprises a mounting plate, a main control device, more than two heat dissipation fans, more than two heat dissipation fin groups and a heat dissipation plate, wherein the mounting plate is connected to the inner wall of the display shell and forms a heat dissipation space with the display shell; the main control device is connected to the mounting plate; more than two heat dissipation fans are connected to the mounting plate and are electrically connected to the main control device; at least one heat dissipation fan corresponds to one lens barrel assembly, and each heat dissipation fan comprises an air outlet; more than two radiating fin groups are arranged in the radiating space and connected to the mounting plate, and the radiating fin groups are connected to the air outlet of the radiating fan; the heat dissipation plate is arranged in the heat dissipation space and is connected to the mounting plate; the radiating fin groups are connected to the radiating plates, and the radiating plates are arranged corresponding to the main control device.
The application provides a head-mounted display device with adjustable interpupillary distance, which can realize independent adjustment of the interpupillary distance of a left eye and the interpupillary distance of a right eye as two groups of adjusting and controlling devices can respectively and independently adjust two lens cone assemblies, so that the head-mounted display device can be suitable for interpupillary distances of more users and the wearing comfort of users is improved. Because the installation space in the display shell is limited, the occupation space can be reduced by utilizing the carbon film layer, the conductive pole piece and the variable resistance component formed by the combination of the regulating and controlling slide block, and the miniaturization, the light weight and the light weight design of the regulating and controlling device are realized.
The regulating and controlling sliding block is used for simultaneously connecting the conductive pole piece and the lens barrel component, and the resistance value can be regulated in real time in the process of regulating the interpupillary distance, so that the corresponding interpupillary distance can be obtained in real time, and a user can conveniently and rapidly regulate the interpupillary distance. Meanwhile, the structure of the regulating device is simplified, the occupied space of the regulating device is reduced, and the light weight and miniaturization design of the head-mounted display equipment are realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a head-mounted display device according to a first embodiment of the present application;
fig. 2 is a schematic view of a part of a structure of a head-mounted display device according to a first embodiment of the present application;
fig. 3 is a schematic structural diagram of a regulating device in a head-mounted display device according to the present application;
FIG. 4 is a schematic diagram of a circuit board and a conductive pad in a head mounted display device provided by the present application;
FIG. 5 is a schematic diagram of a regulating slider and a conductive pole piece in a head-mounted display device provided by the application;
fig. 6 is a schematic structural diagram of a conductive pole piece in a head-mounted display device according to the present application;
fig. 7 is a schematic structural diagram of a linkage seat and lens barrel assembly in a head-mounted display device according to the present application;
fig. 8 is a schematic structural diagram of a main control device and a mounting board in the head-mounted display device provided by the application;
FIG. 9 is a schematic diagram of a heat dissipating fan, a heat dissipating fin set and a heat dissipating plate in a head mounted display device according to the present application;
fig. 10 is a schematic structural diagram of a head-mounted display device according to a second embodiment of the present application.
Reference numerals illustrate:
100. a lens barrel assembly; 200. a camera; 300. a mounting plate; 310. a master control device; 400. a substrate; 410. a second limit rod; 500. a base; 510. a driving motor; 520. a screw; 530. a first stop lever; 600. a varistor assembly; 610. a circuit board; 611. a carbon film printing layer; 620. a conductive pole piece; 621. a cross beam; 622. a sliding sheet; 623. a recessed portion; 630. a regulating and controlling sliding block; 631. a first through hole; 632. a second through hole; 700. a linkage seat; 810. a heat radiation fan; 820. a heat radiation fin group; 830. and a heat dissipation plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper", "lower", "left" and "right" are generally used to refer to the directions of the upper, lower, left and right sides of the device in actual use or operation, and are specifically shown in the drawings.
The application provides a head-mounted display device with adjustable interpupillary distance, which is respectively described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
Example 1
Referring to fig. 1, the application provides a head-mounted display device with adjustable interpupillary distance, which is projected to retina of human eyes through a display screen and a visual system, and can observe objects in three-dimensional space in real time without limitation, thus giving users immersion experience.
Referring to fig. 1 and 2, the head-mounted display apparatus includes a display housing (not shown), a substrate 400, two lens barrel assemblies 100, and two sets of adjusting devices, wherein a hollow installation space is formed inside the display housing, and the substrate 400, the lens barrel assemblies 100, and the adjusting devices are installed in the installation space of the display housing.
Referring to fig. 1, the left and right sides of the display housing may be worn on the face of the user through two head bands, and two through assembly holes are formed at positions of the display housing corresponding to eyes of the user, and the two assembly holes are communicated with the installation space, so that the two lens barrel assemblies 100 are opposite to the eyes of the user. The lens barrel assembly 100 may transmit an optical signal to eyes of a user so that the screens of the left and right lens barrel assemblies 100 may display images of the left and right eyes, respectively, and the eyes of the user may generate a stereoscopic sense in the brain after acquiring the information with the difference, thereby guiding the user to generate a feeling of being in a virtual environment.
Referring to fig. 1, the substrate 400 is disposed inside the installation space and is fixed to an inner wall of the installation space by fastening screws, so that the substrate 400 and the display housing are relatively fixed. The two lens barrel assemblies 100 are respectively disposed inside the two assembly holes, and a gap is left between the outer wall of the lens barrel assembly 100 and the inner wall of the assembly hole, so that the lens barrel assembly 100 can be translated in the left-right direction, thereby being suitable for users with different interpupillary distances. The size of the gap is designed according to the interpupillary distance range of human eyes and the adjustment range of the lens barrel assembly 100, and the size of the gap is not particularly limited in the present application.
Referring to fig. 1, two sets of adjusting devices respectively and independently control two lens barrel assemblies 100, and the two sets of adjusting devices can control the two lens barrel assemblies 100 to synchronously move by the same distance, so that the left eye pupil distance and the right eye pupil distance can be adjusted by the same distance. The two groups of adjusting and controlling devices can also respectively control the two lens cone assemblies 100 to move for different distances, or one adjusting and controlling device can control the corresponding lens cone assembly 100 to move so as to match users with different left eye interpupillary distances and right eye interpupillary distances, thereby realizing the fine adjustment of the head-mounted display device and improving the wearing comfort of the users.
Referring to fig. 1, a perpendicular bisector of a line connecting the center points of the two lens barrel assemblies 100 is defined as a reference line, and the two adjusting and controlling devices are symmetrically disposed about the reference line.
The symmetrically arranged regulating and controlling devices are utilized to control the two lens barrel assemblies 100 to reciprocate, so that the lens barrel assemblies 100 can be ensured to always maintain accurate movement tracks in the regulating process, and the lens barrel assemblies 100 can maintain higher regulating precision.
Referring to fig. 1 to 3, each adjusting and controlling device includes a controller (not shown), a resistance variable component 600 and a resistance measuring device (not shown), wherein the resistance variable component 600 and the resistance measuring device are electrically connected to the controller, the resistance variable component 600 is used for adjusting a resistance value in a circuit, and the resistance measuring device is used for detecting the resistance value in the circuit in real time and transmitting the resistance value to the controller, so that the controller can obtain a pupil distance of the corresponding lens barrel component 100 according to the resistance value. The resistance measuring device in the application can be a megohmmeter, a universal meter, a voltmeter and the like.
Referring to fig. 1-5, the varistor assembly 600 includes a circuit board 610, a conductive pole piece 620 and a regulating slider 630, the circuit board 610 is mounted on a surface of the substrate 400 facing the lens barrel assembly 100, a carbon film layer is disposed on the circuit board 610, a circuit of the carbon film layer has good self-lubrication, and a resistance value in the circuit can be correspondingly and stably changed along with an increase of a conducting length of the carbon film layer.
The carbon film layer comprises two carbon film printing layers 611 which are not conductive, the two carbon film printing layers 611 are respectively arranged at two sides of the circuit board 610, and two sides of the conductive pole piece 620 are respectively attached to the two carbon film printing layers 611, so that the two carbon film printing layers 611 can form a conductive circuit through the conductive pole piece 620. When the conductive pole piece 620 slides relative to the circuit board 610, the length of the carbon film printing layer 611 connected into the circuit changes, so that the resistance value in the circuit changes linearly, and the controller can obtain the interpupillary distance of the lens barrel assembly 100 according to the resistance value.
Referring to fig. 4 and 6, the conductive electrode 620 has elastic deformation performance, and when the end of the conductive electrode 620 is attached to the carbon film layer, the conductive electrode 620 is pressed and maintains a certain pre-pressing elasticity. At this time, the conductive electrode 620 and the carbon film printing layer 611 have an interaction force, so that the end of the conductive electrode 620 always keeps good contact with the carbon film printing layer 611 in the sliding process, thereby ensuring the stability of the working performance of the varistor assembly 600. The material of the conductive pole piece 620 in the application can be selected from metal materials such as beryllium copper, which is the elastic material with the best performance in copper alloy, and has a series of excellent physical, chemical and mechanical properties such as high strength, elasticity, hardness, fatigue strength, small elastic hysteresis, corrosion resistance, wear resistance, cold resistance, high conductivity, no magnetism, no spark generation due to impact and the like.
Referring to fig. 4 and 6, the conductive pole piece 620 has an i-shaped structure, which includes a beam 621 and two sliding pieces 622, the beam 621 is a curved surface, and the concave surface of the beam 621 is disposed towards the circuit board 610. The cross beam 621 is located between the two carbon film printing layers 611, the two slide pieces 622 are respectively connected to both end portions of the cross beam 621, and the two slide pieces 622 are respectively attached to the two carbon film printing layers 611.
Referring to fig. 4 and 6, since the conductive pole piece 620 has good elasticity and conductivity, and is not easy to be deformed plastically, the complete middle portion of the cross beam 621 and the regulating slider 630 are integrally formed and manufactured by injection molding or hot melting, so as to improve the stability of fixing the regulating slider 630 and the conductive pole piece 620. Since the regulating and controlling slider 630 is made of an insulating material, the conductive pole piece 620 can be driven to slide relative to the carbon film layer by moving the regulating and controlling slider 630, so that the safety of the varistor assembly 600 during operation is improved.
Referring to fig. 4 and 6, since the beam 621 is a curved surface, and the conductive electrode piece 620 is pressed and maintains a pre-pressed elastic amount, the adjusting slider 630 applies a pressure to the beam 621 toward the circuit board 610, and at this time, the beam 621 with the concave surface toward the circuit board 610 is elastically deformed, and drives the two sliding pieces 622 to apply a pressure to the circuit board 610, so that the two sliding pieces 622 and the carbon film printing layer 611 maintain good electrical contact.
Referring to fig. 4 and 6, each slide 622 is bent towards the direction of the circuit board 610 to form at least one recess 623, and the recesses 623 of the two slide 622 can be respectively attached to the two carbon film printed layers 611, so that the two carbon film printed layers 611 can be communicated with the cross beam 621 through the slide 622.
Because the slide sheet 622 is attached to the carbon film layer and maintains a pre-pressing elastic quantity, when the slide sheet 622 is abutted to the carbon film layer through the concave portion 623, the concave portion 623 can reduce the contact area between the slide sheet 622 and the carbon film layer, so that the slide sheet 622 slides relative to the carbon film layer, and good electrical contact between the slide sheet 622 and the carbon film layer can be maintained.
Referring to fig. 1-6, the adjusting and controlling sliders 630 in the two sets of adjusting and controlling devices are respectively connected to the two lens barrel assemblies 100, and when the adjusting and controlling sliders 630 are moved, the adjusting positions of the corresponding lens barrel assemblies 100 can be driven to achieve pupil distance adjustment, and meanwhile, the conductive pole pieces 620 can be driven to slide to different positions of the carbon film printing layer 611, so that the resistance value of the circuit is changed. The resistance measurement device may detect the resistance value in real time and transmit the resistance value into the controller so that the controller may obtain the adjusted or pupil distance of the lens barrel assembly 100 according to the resistance value.
In the application, as the two groups of regulating and controlling devices can respectively and independently regulate the two lens barrel assemblies 100, the independent regulation of the left eye pupil distance and the right eye pupil distance is realized, so that the head-mounted display device can be suitable for pupil distances of more users, and the wearing comfort of users is improved. Because the installation space in the display housing is limited, the varistor assembly 600 formed by combining the carbon film layer, the conductive pole piece 620 and the regulating and controlling slider 630 can reduce the occupied space, and realize the miniaturization, the light weight and the light weight design of the regulating and controlling device.
The conductive pole piece 620 and the lens barrel assembly 100 are simultaneously connected by the regulating and controlling sliding block 630, and the resistance value can be regulated in real time in the process of regulating the interpupillary distance, so that the corresponding interpupillary distance can be obtained in real time, and the user can conveniently and rapidly regulate the interpupillary distance. Meanwhile, the structure of the regulating device is simplified, the occupied space of the regulating device is reduced, and the light weight and miniaturization design of the head-mounted display equipment are realized.
Referring to fig. 1 to 8, the head-mounted display apparatus further includes a main control device 310, the main control device 310 is mounted on a surface of the substrate 400 facing away from the lens barrel assembly 100, the controller and the variable resistance assembly 600 in the two sets of adjusting devices are all electrically connected to the main control device 310, the controller and the circuit board 610 are all electrically connected to a flexible circuit board, and the flexible circuit board is electrically connected to the main control device 310.
The main control device 310 can be utilized to determine whether to adjust the position of the lens barrel assembly 100 according to real-time feedback of the two controllers and the pupil distance of the left and right eyes of the user, specifically how much distance to adjust, whether the two groups of adjusting devices need to adjust synchronously or adjust one lens barrel assembly 100 independently.
Referring to fig. 1 and 8, each lens barrel assembly 100 is provided with at least one camera 200, and lenses of the cameras 200 are disposed corresponding to the lens barrel assemblies 100 and are electrically connected to the main control device 310. When the head-mounted display device is worn on the head of the user, the camera 200 may collect the pupil of the user in real time and transmit the collected pupil image to the main control device 310, so as to assist the main control device 310 to determine whether the position of the pupil matches the position of the lens barrel assembly 100, thereby improving the adjustment accuracy of the head-mounted display device.
Referring to fig. 1-3, each of the adjusting and controlling devices further includes a base 500, a driving motor 510, a screw 520, and a first limit lever 530, wherein the base 500 is mounted to the base 400 by fastening screws. The housing of the driving motor 510 is mounted to the base 500, and its protruding shaft is connected to one end of the screw 520 for driving the screw 520 to rotate. The two ends of the screw 520 are rotatably mounted to the base 500 through rolling bearings, and the regulation slider 630 is provided with a first through hole 631, and the screw 520 passes through the first through hole 631 and is screw-coupled with the first through hole 631.
Referring to fig. 1 to 3, both ends of the first stopper rod 530 are fixed to the base 500, and the center line of the first stopper rod 530 and the center line of the screw 520 are parallel to each other. The adjusting and controlling sliding block 630 is provided with a second through hole 632 in a penetrating manner, and the first limiting rod 530 penetrates through the second through hole 632, so that the adjusting and controlling sliding block 630 can move relative to the first limiting rod 530.
The driving motor 510 is matched with the screw 520 and the adjusting and controlling slider 630 by screw threads, so that the adjusting and controlling slider 630 can be driven to move along a straight line, and the lens barrel assembly 100 is driven to synchronously adjust the interpupillary distance, thereby realizing automatic adjustment. Since the adjustment position of the screw 520 is finer and more accurate, the adjustment accuracy of the head-mounted display device can be improved. During the movement of the adjusting and controlling slider 630, the first limiting rod 530 can limit the movement direction of the adjusting and controlling slider 630, so as to ensure that the movement track is always along the center line direction of the screw 520 during the reciprocating adjustment of the lens barrel assembly 100.
The camera 200 transmits the acquired pupil image to the main control device 310, the main control device 310 judges the relative positions of the pupils of the user and the two lens barrel assemblies 100 based on the pupil image, then the main control device 310 sends a working signal to the driving motor 510, the driving motor 510 can drive the regulating and controlling sliding block 630 to slide along a straight line by using the screw 520, the regulating and controlling sliding block 630 can drive the lens barrel assemblies 100 to move in the sliding process, the lens barrel assemblies 100 can be matched with the pupil distance of the user, meanwhile, the resistance value of the variable resistance assembly 600 is changed, the resistance value in the circuit is detected in real time by using the resistance measuring device, and the resistance value is transmitted into the controller, so that the controller can obtain the pupil distance value adjusted by the lens barrel assemblies 100 in real time according to the resistance value. Since the controller is electrically connected to the master control device 310 (refer to fig. 8), the controller transmits the obtained pupil distance value to the master control device 310, so that the master control device 310 can control the two lens barrel assemblies 100 to match the pupils of the user according to the above various information.
Referring to fig. 1 and 7, each adjusting device further includes a linkage seat 700 and a second stop lever 410, and the lens barrel assembly 100 is mounted to the linkage seat 700, and defines the mounting surface as a reference plane, and the mounting surface is a surface of the linkage seat 700 for mounting the lens barrel assembly 100. Meanwhile, the top end of the linkage seat 700 is fixedly connected to the adjusting and controlling sliding block 630, so that the adjusting and controlling sliding block 630 can drive the lens barrel assembly 100 to reciprocate through the linkage seat 700, and the left pupil distance and the right pupil distance can be adjusted.
In fig. 1, 3 and 7, the second stopper rod 410 is mounted to the base 500, and the center line of the second stopper rod 410 and the moving direction of the regulation slider 630 (or the center line of the first stopper rod 530) are parallel to each other. The third through hole is formed in the linkage seat 700 in a penetrating manner, and the second limiting rod 410 penetrates through the third through hole, so that the linkage seat 700 can slide along the central line direction of the second limiting rod 410, and the position adjustment precision of the lens barrel assembly 100 is improved by using the second limiting rod 410.
Referring to fig. 1 and 7, the moving direction of the lens barrel assembly 100 forms an angle with the moving direction of the adjusting device, the angle is 4 ° -15 °, and the angle between the moving direction of the lens barrel assembly 100 and the moving direction of the adjusting device is always 8 °. When the lens barrel assembly 100 is horizontally moved, the moving direction of the lens barrel assembly 100 forms an included angle with the moving direction of the adjusting device, so that the visual field range of the lens barrel assembly 100 can be increased, and the visual field range of both eyes can be increased.
In fig. 1, 3 and 7, the center line of the second stop lever 410 intersects the reference plane and forms the above-mentioned included angle, so that when the adjusting and controlling slider 630 moves along the center line of the screw 520 (or the center line of the first stop lever 530), the linkage seat 700 can synchronously move along the center line direction of the second stop lever 410, and since the mounting surfaces of the lens barrel assembly 100 and the linkage seat 700 are inclined planes, it is ensured that the lens barrel assembly 100 always maintains a fixed inclined included angle in the moving process of the linkage seat 700, and the visual angle range of the left and right eyes is increased on the basis of ensuring the adjustment accuracy of the lens barrel assembly 100.
Referring to fig. 1, 8 and 9, the head-mounted display device further includes a mounting plate 300, more than two heat dissipation fans 810, more than two heat dissipation fin groups 820 and a heat dissipation plate 830, wherein the mounting plate 300 is disposed inside the mounting space and between the substrate 400 and the inner wall of the display housing. The mounting plate 300 is connected to the inner wall of the display housing by fastening screws such that the mounting plate 300 is fixedly connected to the display housing and a heat dissipation space is formed between the mounting plate 300 and the inner wall of the display housing. While the base plate 400 is fixed to the upper end of the mounting plate 300 such that the body portion of the lens barrel assembly 100 is distributed opposite to the mounting plate 300.
The heat dissipation fan 810, the heat dissipation fin group 820 and the heat dissipation plate 830 are all disposed inside the heat dissipation space and are all mounted to the mounting plate 300. The heat dissipation blower 810 is electrically connected to the main control device 310, so that the main control device 310 can control the heat dissipation blower 810 to accelerate heat transfer according to the temperature in the heat dissipation space.
At least one cooling fan 810 corresponds to one lens barrel assembly 100, so that heat transfer of air at the lens barrel assembly 100 is accelerated by the cooling fan 810, and the working temperature at the lens barrel assembly 100 is prevented from being too high. Each heat dissipation fan 810 comprises an air outlet, the heat dissipation fin groups 820 are arranged at the air outlet of the heat dissipation fan 810, and heat dissipation openings are formed in the ends of the display shells corresponding to the heat dissipation fin groups 820, so that air in the installation space can be discharged to the outside of the display shells through the heat dissipation fan 810, the heat dissipation fin groups 820 and the heat dissipation openings, and therefore a plurality of components in the display shells are dissipated.
The fin groups 820 on the left and right sides are connected by a heat dissipating plate 830, and the heat dissipating plate 830 is mounted at a position corresponding to the main control device 310 to accelerate heat dissipation of air at the main control device 310, so as to avoid the excessive temperature of the main control device 310 during operation.
Since the installation position of the heat radiation fan 810 corresponds to the lens barrel assembly 100 and the installation position of the heat radiation fin group 820 is close to the adjusting and controlling device, the installation position of the heat radiation plate 830 corresponds to the main control device 310, thereby realizing heat radiation of a plurality of components in the installation space and improving the heat radiation effect.
Referring to fig. 1 to 9, two sets of symmetrically arranged adjusting devices are used to control the lens barrel assembly 100 to slide left and right respectively in the present application, so as to achieve independent adjustment of the left and right interpupillary distance. Because the number of regulating devices and the occupied space are increased when the lens barrel assembly 100 is independently controlled to move, the occupied space of the variable resistance assembly 600 is reduced by utilizing the cooperation of the carbon film layer and the conductive pole piece 620, and meanwhile, the regulating slide block 630 is simultaneously connected with the conductive pole piece 620 and the lens barrel assembly 100, so that the structure of the regulating device can be simplified, and meanwhile, the structure of the regulating device is more compact and miniaturized, thereby reasonably designing the connection relationship and the position relationship of the regulating device and the lens barrel assembly 100 in a limited installation space. Because the main control device 310, the adjusting and controlling device and the lens barrel assembly 100 are installed in the installation space more compactly, the heat dissipation fan 810, the heat dissipation fin group 820 and the heat dissipation plate 830 are required to be utilized to conduct corresponding heat dissipation on a plurality of important structural components, so that air inside and outside the display shell can be subjected to better heat exchange, and the stability of the performance of the head-mounted display device during operation is ensured.
Example 2
Referring to fig. 1-10, the present application provides a head-mounted display device with adjustable interpupillary distance, which is different from the head-mounted display device in the first embodiment in that the varistor element 600 is a sliding varistor.
The varistor assembly 600 includes an insulating cylinder (not shown), a coil (not shown), a metal rod (not shown), and a regulation slider 630, the insulating cylinder may be fixed to the substrate 400 or the inner wall of the display housing by fastening screws, the coil is wound to the outer sidewall of the insulating cylinder, and the metal rod is mounted to the insulating cylinder such that the metal rod is relatively fixed to the insulating cylinder.
Referring to fig. 10, the adjusting slider 630 is movably disposed on the metal rod, and the lower end of the adjusting slider 630 is attached to the coil, so that the metal rod is electrically connected to the coil through the adjusting slider 630. When the adjusting and controlling slider 630 is moved along the axial direction of the metal rod, the bottom end of the adjusting and controlling slider 630 is attached to different positions of the coil, so that the length of the coil connected in the circuit is correspondingly adjusted, and the resistance value of the sliding rheostat can be adjusted.
The adjusting and controlling sliding block 630 is utilized to simultaneously connect the coil and the lens barrel assembly 100, and the resistance value can be adjusted in real time in the process of adjusting the interpupillary distance, so that the corresponding interpupillary distance can be obtained in real time, and the user can conveniently and rapidly adjust the interpupillary distance. Meanwhile, the structure of the regulating device is simplified, the occupied space of the regulating device is reduced, and the light weight and miniaturization design of the head-mounted display equipment are realized.
In this embodiment, please refer to the contents of the first embodiment for other structures of the head-mounted display device, and detailed descriptions thereof are omitted.
The application has been described in detail with reference to the above embodiments of a head-mounted display device with adjustable interpupillary distance, and specific examples are applied to illustrate the principles and embodiments of the application, and the above examples are only used to help understand the method and core ideas of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (10)
1. A head-mounted display device with adjustable interpupillary distance, comprising:
a display housing including an installation space and two assembly holes, the assembly holes being communicated to the installation space;
a base plate provided in the installation space and connected to an inner wall of the display housing;
the two lens barrel assemblies can be arranged in the assembly holes in a translation mode; and
two groups of regulating and controlling devices, each of which comprises a resistance changing component, wherein the resistance changing component comprises regulating and controlling sliding blocks, and the regulating and controlling sliding blocks in the two groups of regulating and controlling devices are respectively connected to the two lens barrel components;
when the regulating and controlling sliding block drives the lens barrel assembly to translate, the resistance value of the variable resistance assembly is changed, so that the interpupillary distance of the lens barrel assembly can be obtained according to the resistance value;
the varistor assembly further includes:
a circuit board including a carbon film layer, the circuit board mounted to the substrate; and
a conductive pole piece fixed to the regulation slider, a portion of the conductive pole piece being attached to the carbon film layer such that it is in electrical communication with the carbon film layer;
when the regulating and controlling sliding block is moved, the conductive pole piece is moved to different positions of the carbon film layer, so that the resistance value of the variable resistance component is changed;
the conductive pole piece is I-shaped, and comprises:
the cross beam is a curved surface, and the concave surface of the cross beam faces the circuit board; and
two sliding sheets respectively connected to two ends of the cross beam, wherein each sliding sheet is bent towards the circuit board to form at least one concave part;
the carbon film layer comprises two carbon film printing layers which are not conducted mutually, and the concave parts of the two sliding sheets are respectively attached to the two carbon film printing layers, so that the two carbon film printing layers can be conducted through the conductive pole pieces.
2. The head-mounted display device with adjustable interpupillary distance according to claim 1,
the conductive pole piece has elastic deformation, and when the conductive pole piece is attached to the carbon film layer, the conductive pole piece is in a pressed state and keeps a pre-pressing elastic quantity.
3. The head-mounted display device with adjustable interpupillary distance according to claim 1,
the regulating and controlling sliding block and the bending part of the cross beam are integrally formed.
4. The head-mounted display device with adjustable interpupillary distance according to claim 1,
and defining a perpendicular bisector of the connecting line of the central points of the two lens cone assemblies as a datum line, wherein the two groups of regulating and controlling devices are symmetrically arranged about the datum line.
5. The adjustable interpupillary distance head display device of claim 1, wherein each of the adjusting and controlling means further comprises:
a base mounted to the substrate;
a drive motor mounted to the base;
a screw rotatably connected to the base, and one end of which is connected to the driving motor; the regulating and controlling sliding block is provided with a first through hole, and the screw rod penetrates through the first through hole and is in threaded connection with the first through hole; and
a first limit lever mounted to the base, a center line of the first limit lever being parallel to a center line of the screw; the regulating and controlling sliding block is provided with a second through hole, and the first limiting rod penetrates through the second through hole;
when the driving motor controls the screw to rotate, the regulating and controlling sliding block drives the lens barrel assembly to translate, so that the resistance value of the variable resistance assembly is changed.
6. The adjustable interpupillary distance head display device of claim 1, wherein each of the adjusting and controlling means further comprises:
a controller, the varistor assembly electrically connected to the controller; and
the resistance measuring device is electrically connected to the variable resistance component and the controller and used for detecting the resistance value of the variable resistance component in real time and transmitting the resistance value to the controller so that the controller can acquire the interpupillary distance of the lens barrel component according to the resistance value.
7. The head-mounted display device with adjustable interpupillary distance according to claim 1,
an included angle is formed between the moving direction of the lens barrel assembly and the moving direction of the regulating and controlling sliding block, and the included angle is 4-15 degrees.
8. The adjustable interpupillary distance head display device of claim 7, wherein each of the adjustment and control means further comprises:
the lens cone assembly is fixedly connected to the regulating and controlling sliding block through the linkage seat; and
the second limiting rod is connected to the base, the linkage seat is provided with a third through hole, and the second limiting rod passes through the third through hole;
the lens barrel assembly and the installation surface of the linkage seat are defined as reference planes, the center line of the second limiting rod is intersected with the reference planes to form the included angle, and the center line of the second limiting rod is parallel to the moving direction of the regulating and controlling sliding block.
9. The adjustable pupil distance head mounted display device of claim 1, further comprising:
and more than two cameras, wherein at least one camera is mounted to one lens barrel assembly, and lenses of the cameras are correspondingly arranged with the lens barrel assembly.
10. The adjustable pupil distance head mounted display device of claim 1, further comprising:
the mounting plate is connected to the inner wall of the display shell and forms a heat dissipation space with the display shell;
a master device connected to the mounting plate;
more than two heat dissipation fans connected to the mounting plate and electrically connected to the main control device; at least one heat dissipation fan corresponds to one lens barrel assembly, and each heat dissipation fan comprises an air outlet;
more than two radiating fin groups are arranged in the radiating space and connected to the mounting plate, and the radiating fin groups are connected to the air outlet of the radiating fan; and
a heat dissipation plate provided in the heat dissipation space and connected to the mounting plate; the radiating fin groups are connected to the radiating plates, and the radiating plates are arranged corresponding to the main control device.
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| CN202311324747.8A CN117055233A (en) | 2023-10-13 | 2023-10-13 | Pupil distance adjustable head-mounted display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311324747.8A CN117055233A (en) | 2023-10-13 | 2023-10-13 | Pupil distance adjustable head-mounted display device |
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| CN202311324747.8A Pending CN117055233A (en) | 2023-10-13 | 2023-10-13 | Pupil distance adjustable head-mounted display device |
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