CN117631283A - Pupil distance adjusting device and head-mounted equipment - Google Patents

Abstract

The application discloses a pupil distance adjusting device and head-mounted equipment. The pupil distance adjusting device comprises: the pupil distance adjusting device comprises a fixed plate, a first lens cone, a second lens cone and a linear actuator; the fixed plate is provided with a shaft body; each lens barrel is provided with a sliding part which is movably sleeved on the shaft body; the linear actuator is arranged on the fixed plate and comprises a first rack, a second rack, a gear and an actuating module, wherein the first rack is connected with the first lens cone, the second rack is connected with the second lens cone, the first rack and the second rack which are arranged in parallel are respectively meshed with the gear, the actuating module is connected with the second rack, the actuating module is used for driving the second rack to linearly move, and the first rack is driven to linearly move through the combination of the gear so as to drive the first lens cone and the second lens cone to move along the same or opposite directions along the axis body through the linear movement of the first rack and the second rack, so that the pupil distance between the first lens cone and the second lens cone is adjusted, and the pupil distance is automatically adjusted.

Description

Pupil distance adjusting device and head-mounted equipment

Technical Field

The application relates to the technical field of electronic products, in particular to a pupil distance adjusting device and head-mounted equipment.

Background

Currently, the technology of virtual reality is mature, and application scenes of the head-mounted device are also expanded to a wider range, such as movies, games, social contact and the like.

However, the interpupillary distances of eyes of different users are different, and the interpupillary distances of eyes of men and women, young and different species are different. Currently, the interpupillary distance of some head-mounted devices cannot be adjusted, so that the glasses can generate a fuzzy sense, and user experience is affected. Some head-mounted equipment has low adjustment efficiency because the pupil distance of the equipment needs to be manually adjusted, and the pupil distance of the equipment needs to be continuously adjusted when the same head-mounted equipment is replaced by a user, so that the operation cost of the user is increased.

Disclosure of Invention

The embodiment of the application provides a pupil distance adjusting device and head-mounted equipment, which can realize the automatic adjustment of pupil distance, reduce the operation cost of a user and improve the adjustment efficiency.

The embodiment of the application provides a pupil distance adjusting device, pupil distance adjusting device is applied to head-mounted equipment, pupil distance adjusting device includes:

the fixing plate is provided with a shaft body;

the device comprises a first lens cone and a second lens cone, wherein a sliding piece is arranged on each lens cone and is movably sleeved on the shaft body;

the linear actuator is arranged on the fixed plate and comprises a first rack, a second rack, a gear and an actuating module, the first rack is connected with the first lens cone, the second rack is connected with the second lens cone, the first rack and the second rack which are arranged in parallel are respectively meshed with the gear, the actuating module is connected with the second rack, the actuating module is used for driving the second rack to linearly move, and the first rack is driven to linearly move through the gear in a combined mode so as to drive the two lens cones to move along the same or opposite directions along the axial direction through the linear movement of the first rack and the second rack, so that the pupil distance between the first lens cone and the second lens cone is adjusted.

In some embodiments, the actuating module includes a driving element and a slider, the actuating module is connected to the second rack through the slider, and the actuating module drives the slider to move linearly through the driving element, so as to drive the second rack to move linearly.

In some embodiments, the fixing plate is further provided with a shaft body connecting piece, the shaft body connecting piece comprises a shaft body supporting seat and a shaft body supporting frame, the shaft body supporting seat is arranged on the fixing plate, the shaft body supporting frame is connected to the shaft body supporting seat, the shaft body supporting frame is provided with a through hole, and the shaft body is inserted into the through hole on the shaft body supporting frame.

In some embodiments, the first lens barrel and the second lens barrel are disposed on the front surface of the fixing plate, the shaft body and the shaft body connecting piece are disposed on two side edges of the back surface of the fixing plate, a first sliding groove is disposed on the fixing plate at a position corresponding to the shaft body, and the sliding piece on the first lens barrel and the second lens barrel passes through the first sliding groove and is movably sleeved on the shaft body.

In some embodiments, the linear actuator is arranged on the back surface of the fixed plate, a second chute is arranged on the fixed plate at a position corresponding to the first rack, and a third chute is arranged on the fixed plate at a position corresponding to the second rack;

the first lens barrel is provided with a first connecting piece, and the second lens barrel is provided with a second connecting piece;

the first connecting piece on the first lens cone penetrates through the second sliding groove to be connected with the first rack, and the second connecting piece on the second lens cone penetrates through the third sliding groove to be connected with the second rack.

In some embodiments, each of the first lens barrel and the second lens barrel corresponds to at least two of the shaft bodies, wherein the at least two of the shaft bodies corresponding to each lens barrel are respectively disposed at two sides of the fixing plate.

The embodiment of the application provides a head-mounted device, which comprises a shell and the interpupillary distance adjusting device arranged in the shell.

In some embodiments, the head-mounted device further comprises a pupil distance detection device electrically connected to the linear actuator, the pupil distance detection device for detecting a human eye pupil distance;

the pupil distance adjusting device controls the linear actuator to drive the first lens barrel and the second lens barrel to move along the same or opposite directions along the shaft body according to the pupil distance of the human eye detected by the pupil distance detecting device so as to adjust the pupil distance between the first lens barrel and the second lens barrel to be matched with the pupil distance of the human eye.

In some embodiments, the pupil distance detection device comprises a camera and a processing unit, wherein the camera is arranged on the first lens barrel and the second lens barrel in the pupil distance adjustment device or on the shell; the camera is used for collecting eyeball images, and the processing unit is used for carrying out image processing on the eyeball images according to a vision algorithm so as to detect the interpupillary distance of human eyes.

In some embodiments, the head-mounted device further includes a hall sensor electrically connected to the linear actuator, the hall sensor is disposed in the housing, a magnetic element is disposed on at least one of the first lens barrel and the second lens barrel, and the hall sensor is configured to detect a pupil distance between the first lens barrel and the second lens barrel by sensing a magnetic field strength of the magnetic element.

The embodiment of the application provides a pupil distance adjusting device and a head-mounted device, wherein the pupil distance adjusting device is applied to the head-mounted device and comprises a fixed plate, a first lens barrel, a second lens barrel and a linear actuator; the fixed plate is provided with a shaft body; each lens barrel is provided with a sliding part which is movably sleeved on the shaft body; the linear actuator is arranged on the fixed plate and comprises a first rack, a second rack, a gear and an actuating module, wherein the first rack is connected with the first lens cone, the second rack is connected with the second lens cone, the first rack and the second rack which are arranged in parallel are respectively meshed with the gear, the actuating module is connected with the second rack, the actuating module is used for driving the second rack to linearly move, and the first rack is driven to linearly move through the gear combination so as to simultaneously drive the first lens cone and the second lens cone to move along the same or opposite directions along the axis body through the linear movement of the first rack and the second rack, so that the pupil distance between the first lens cone and the second lens cone can be adjusted. According to the embodiment of the application, the first lens barrel and the second lens barrel can be driven to move simultaneously through the linear actuator, so that the automatic adjustment of the pupil distance is realized, the operation cost of a user is reduced, and the adjustment efficiency is improved; the pupil distance adjusting device occupies small space when being applied to the head-mounted equipment, has high space utilization rate, can reserve more space for other electronic devices, can realize the function of automatically adjusting the pupil distance, improves the use efficiency of the head-mounted equipment, and improves the use experience of users.

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 introduced 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 first view of an interpupillary distance adjustment device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a second view of the pupil distance adjusting device according to the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a third view of the pupil distance adjusting device according to the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a head-mounted device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The embodiment of the application can be applied to various application scenes such as Virtual Reality (VR), augmented Reality (Augmented Reality, AR), mixed Reality (MR), games and the like.

First, partial terms or terminology appearing in the course of describing the embodiments of the present application are explained as follows:

virtual Reality (VR) is a three-dimensional Virtual space created by VR device simulation, providing visual, auditory, tactile, etc. sensory simulation, allowing the user to look like calendar. In short, it is "there is no midwifery". In VR, the user can only experience the virtual world and cannot see the real environment.

Augmented reality (Augmented Reality, AR) is an extension of VR technology that enables computer-generated virtual information (objects, pictures, video, sound, system cues, etc.) to be superimposed into a real scene and interact with humans. In short, the "adding flowers to the brocade". In AR, a user can see both the real world and the virtual things.

Mixed Reality (MR) is an upgrade of AR technology, where a virtual world and a real world are synthesized into a seamless virtual-real fusion world, and physical entities and digital objects therein satisfy a real three-dimensional projection relationship. In short, it is "real-illusion interleaving". In MR, it is difficult for a user to distinguish the boundary of the real world and the virtual world.

Specifically, referring to fig. 1 to 3, an embodiment of the present application provides a pupil distance adjusting device. The pupil distance adjusting device 10 includes:

a fixing plate 11, wherein a shaft body 111 is arranged on the fixing plate 11;

the first lens barrel 121 and the second lens barrel 122, there are sliding parts 1201 on each lens barrel, the sliding part 1201 is cup jointed to the axle body 111 movably;

the linear actuator 13, the linear actuator 13 is disposed on the fixed plate 11, the linear actuator 13 includes a first rack 131, a second rack 132, a gear 133 and an actuating module 134, the first rack 131 is connected to the first lens barrel 121, the second rack 132 is connected to the second lens barrel 122, the first rack 131 and the second rack 132 which are disposed in parallel are respectively meshed with the gear 133, the actuating module 134 is connected to the second rack 132, the actuating module 134 is used for driving the second rack 132 to linearly move, and the first rack 131 is jointly driven to linearly move through the gear 133 so as to simultaneously drive the first lens barrel 121 and the second lens barrel 122 to move along the shaft body 111 in the same or opposite directions through the linear movement of the first rack 131 and the second rack 132, so as to adjust the pupil distance between the first lens barrel 121 and the second lens barrel 122.

For example, the fixing plate 11 may be formed of a light-weight and high-strength material such as engineering plastic, an organic material (e.g., plastic, organic semiconductor), a nanomaterial (e.g., carbon nanotube material), a composite material (e.g., carbon fiber composite material, glass fiber reinforced plastic), etc. The fixing plate 11 has a planar structure.

In some embodiments, the fixing plate 11 may be provided with a first sliding groove 113 for setting the shaft body 111, the shaft body 111 may be disposed in the first sliding groove 113, and two ends of the shaft body 111 are respectively fixed on inner sidewalls of two ends of the first sliding groove 113, where the shaft body 111 and a lateral parallel edge of the first sliding groove 113 are disposed at intervals, and a sliding piece 1201 disposed on each lens barrel is movably sleeved on the shaft body 111. According to the embodiment of the application, the shaft body 111 can be arranged in the first sliding groove 113, and the connection position of the sliding piece 1201 and the shaft body 111 can be limited in the first sliding groove 113, so that the connection position of the sliding piece 1201 and the shaft body 111 does not occupy the structural space in the pupil distance adjusting device 10 additionally, the overall thickness of the pupil distance adjusting device 10 is reduced, and the miniaturization design of equipment is facilitated.

In some embodiments, to facilitate the installation and fixation of the shaft 111, the fixing plate 11 may further be provided with a shaft connecting member 112, where the shaft connecting member 112 includes a shaft supporting seat 1121 and a shaft supporting frame 1122, the shaft supporting seat 1121 is disposed on the fixing plate 11, the shaft supporting frame 1122 is connected to the shaft supporting seat 1121, a through hole (not shown in the drawing) is disposed on the shaft supporting frame 1122, and the shaft 111 is inserted into the through hole (not shown in the drawing) on the shaft supporting frame 1122. According to the embodiment of the application, the shaft body 111 is supported by the shaft body supporting seat 1121 and the shaft body supporting frame 1122 in the shaft body connecting piece 112 protruding from the surface of the fixing plate 11, so that the installation of the shaft body 111 is facilitated, the structure is firmer, and the mechanical acting force (such as thrust, friction force and the like) generated in the process that the first lens barrel 121 and the second lens barrel 122 move along the shaft body 111 to the same or opposite directions is mainly buffered by the shaft body supporting frame 1122, and most acting force is borne by the shaft body supporting seat 1121, so that the influence of the mechanical acting force on the fixing plate 11 is greatly reduced, the damage or deformation of the fixing plate 11 caused by the mechanical acting force is effectively avoided, and the service life of the fixing plate 11 is ensured.

In some embodiments, in order to more reasonably utilize the structural space in the pupil distance adjusting device 10, the first lens barrel 121 and the second lens barrel 122 may be disposed on the front surface 1101 of the fixed plate 11, the shaft body 111 and the shaft body connecting piece 112 may be disposed on two sides of the back surface 1102 of the fixed plate 11, the fixed plate 11 is provided with a first sliding slot 113 at a position corresponding to the shaft body 111, and the sliding piece 1201 on the first lens barrel 121 and the second lens barrel 122 is movably sleeved on the shaft body 111 through the first sliding slot 113.

In some embodiments, the linear actuator 13 is disposed on the back surface 1102 of the fixed plate 11, where a second chute (not shown) is disposed on the fixed plate 11 and corresponds to the first rack 131, and a third chute (not shown) is disposed on the fixed plate 11 and corresponds to the second rack 132; the first lens barrel 121 is provided with a first connecting member (not shown), and the second lens barrel 122 is provided with a second connecting member (not shown); a first connector (not shown) on the first barrel 121 is connected to the first rack 131 through a second chute (not shown), and a second connector (not shown) on the second barrel 122 is connected to the second rack 132 through a third chute (not shown).

According to the embodiment of the application, the first lens barrel 121 and the second lens barrel 122 are arranged on the front surface 1101 of the fixed plate 11, and other devices (such as the shaft body 111, the shaft body connecting piece 112, the linear actuator 13 and the like) outside the first lens barrel 121 and the second lens barrel 122 are arranged on the back surface 1102 of the fixed plate 11, so that the position arrangement of each device in the structural space in the pupil distance adjusting device 10 is more reasonable and compact, and the space utilization rate is improved.

In some embodiments, each of the first lens barrel 121 and the second lens barrel 122 corresponds to at least two shaft bodies 111, wherein the at least two shaft bodies 111 corresponding to each lens barrel are respectively disposed at two sides of the fixing plate 11. For example, each barrel may correspond to two shafts 111, wherein, corresponding to each barrel, the shaft 111 on the upper end side of the fixing plate 11 may be provided as one, and the shaft 111 on the lower end side of the fixing plate 11 may be provided as one. For example, in order to increase the connection stability of the lens barrels, each of the lens barrels may correspond to three shaft bodies 111, wherein, corresponding to each of the lens barrels, the shaft bodies 111 located at the upper end side of the fixing plate 11 may be provided in two, and the shaft bodies 111 located at the lower end side of the fixing plate 11 may be provided in one.

The linear actuator 13 includes a first rack 131, a second rack 132, a gear 133, and an actuating module 134, a first connecting member (not shown) on the first barrel 121 is connected to the first rack 131 through a second chute (not shown), a second connecting member (not shown) on the second barrel 122 is connected to the second rack 132 through a third chute (not shown), the first rack 131 and the second rack 132 arranged in parallel are respectively meshed with the gear 133, the gear 133 may be hinged on the fixed plate 11, the actuating module 134 is connected to the second rack 132, the actuating module 134 is used for driving the second rack 132 to linearly move, and the first rack 131 is jointly driven to linearly move by the gear 133, so as to simultaneously drive the first barrel 121 and the second barrel 122 to move along the axis body 111 in the same or opposite directions, so as to adjust the pupil distance between the first barrel 121 and the second barrel 122.

In some embodiments, the actuating module 134 includes a driving element 1341 and a slider 1342, the actuating module 134 is connected to the second rack 132 through the slider 1342, and the actuating module 134 drives the slider 1342 to move linearly through the driving element 1341 to drive the second rack 132 to move linearly.

For example, the gear 133 may be a carrier gear (commonly called an idler gear), and the gear 133 serves as a transmission between the first rack 131 and the second rack 132 that are not in contact with each other, so as to change the moving directions of the first rack 131 and the second rack 132. The first rack 131 and the second rack 132 are respectively meshed with the gear 133, when the actuation module 134 drives the slide block 1342 to linearly move through the driving element 1341, the second rack 132 is driven to linearly move, at this time, the gear 133 can rotate under the driving of the second rack 132, and since the first rack 131 is meshed with the gear 133, the first rack 131 also transmits the linear movement along with the rotation of the gear 133, the synchronous driving of the first rack 131 and the second rack 132 can be realized through the gear 133, and the long-distance driving can be realized through the cooperation of the first rack 131 and the second rack 132. According to the embodiment of the application, the linear movement of the first rack 131 and the second rack 132 is realized through the linear movement of the sliding block 1342 of the actuating module 134 in the linear actuator 13, so that the first lens barrel 121 and the second lens barrel 122 are driven to move in the same or opposite direction along the shaft body 111, and the interpupillary distance between the first lens barrel 121 and the second lens barrel 122 is adjusted, so that the rapid automatic adjustment of the interpupillary distance is realized.

For example, the size of the actuating module 134 may be within 50mm by 12mm by 6mm, which may enable a compact design, occupy less space, and allow more space for other electronic devices.

For example, the actuation module 134 may be a motor linear module. For example, the motor linear module is composed of a micro stepping motor (driving element 1341), a gear box (not shown), a screw rod (not shown), a nut (not shown), a slide rail (not shown), and a slider 1342. The sliding block 1342 may be mounted on a surface of the sliding rail, and the rotation angle of the micro stepping motor (driving element 1341) is controlled to convert the rotation motion of the motor into the linear motion of the nut on the screw rod, so as to indirectly control the moving distance of the nut on the screw rod, and further drive the sliding block 1342 mounted on the surface of the sliding rail to move.

For example, by the cooperation of the screw rod and the screw nut, self-locking may be achieved to play a limiting role to lock (or limit) the positions of the first barrel 121 and the second barrel 122.

For example, the actuation module 134 may be a micro-linear motor, which may implement a telescoping or translating function.

The camera may be mounted on the head-mounted device 100 to collect an eyeball image, the processing unit performs image processing on the eyeball image according to a vision algorithm to detect a pupil distance of a human eye, and transmits the pupil distance data of the human eye to the linear actuator 13, and the linear actuator 13 drives the first lens barrel 121 and the second lens barrel 122 to achieve a movement approaching or separating through combined actuation of the first rack 131, the second rack 132 and the gear 133, so as to achieve an automatic pupil distance adjusting function between the first lens barrel 121 and the second lens barrel 122.

For example, 2 cameras may be provided, and the 2 cameras may be fixedly disposed on the fixing plate 11, or may be disposed on the first barrel 121 and the second barrel 122, respectively.

For example, the distance range of the pupil distance between the adjusted first barrel 121 and the second barrel 122 may be between the range of 56mm to 72 mm.

All the above technical solutions may be combined to form an optional embodiment of the present application, which is not described here in detail.

The embodiment of the application provides a pupil distance adjusting device 10, the pupil distance adjusting device 10 is applied to a head-mounted device, and the pupil distance adjusting device 10 comprises a fixed plate 11, a first lens barrel 121, a second lens barrel 122 and a linear actuator 13; the fixed plate 11 is provided with a shaft body 111; each lens barrel is provided with a sliding part 1201, and the sliding part 1201 is movably sleeved on the shaft body 111; the linear actuator 13 is disposed on the fixed plate 11, the linear actuator 13 includes a first rack 131, a second rack 132, a gear 133, and an actuating module 134, the first rack 131 is connected to the first barrel 121, the second rack 132 is connected to the second barrel 122, the first rack 131 and the second rack 132 disposed in parallel are respectively meshed with the gear 133, the actuating module 134 is connected to the second rack 132, the actuating module 134 is used for driving the second rack 132 to linearly move, and the first rack 131 is jointly driven to linearly move by the gear 133, so as to drive the first barrel 121 and the second barrel 122 to move along the shaft body 111 in the same or opposite directions simultaneously through the linear movement of the first rack 131 and the second rack 132, so as to adjust the pupil distance between the first barrel 121 and the second barrel 122. According to the embodiment of the application, the first lens barrel 121 and the second lens barrel 122 can be driven to move simultaneously through the linear actuator 13, so that the automatic adjustment of the interpupillary distance is realized, the operation cost of a user is reduced, and the adjustment efficiency is improved; the pupil distance adjusting device 10 occupies small space when being applied to the head-mounted equipment 100, has high space utilization rate, can reserve more space for other electronic devices, can realize the function of automatically adjusting the pupil distance, improves the use efficiency of the head-mounted equipment 100, and improves the use experience of users.

Specifically, referring to fig. 4, an embodiment of the present application provides a head-mounted device. The head-mounted device 100 includes a housing 20, and the pupil distance adjusting device 10 according to any of the above embodiments disposed in the housing 20, and the specific structure of the pupil distance adjusting device 10 is shown in fig. 1 to 3.

For example, the housing 20 of the head-mounted device 100 may enclose and support various electronic components therein, which may include an integrated circuit, a memory, a processor, a display, an electronic circuit, a sensor, an input unit, an output unit, a heat sink, etc., and in the embodiment of the present application, the housing 20 may also enclose a pupil distance adjusting device 10, the pupil distance adjusting device 10 including a fixed plate 11, a first lens barrel 121, a second lens barrel 122, and a linear actuator 13; the fixed plate 11 is provided with a shaft body 111; each lens barrel is provided with a sliding part 1201, and the sliding part 1201 is movably sleeved on the shaft body 111; the linear actuator 13 is disposed on the fixed plate 11, the linear actuator 13 includes a first rack 131, a second rack 132, a gear 133, and an actuating module 134, the first rack 131 is connected to the first barrel 121, the second rack 132 is connected to the second barrel 122, the first rack 131 and the second rack 132 disposed in parallel are respectively meshed with the gear 133, the actuating module 134 is connected to the second rack 132, the actuating module 134 is used for driving the second rack 132 to linearly move, and the first rack 131 is jointly driven to linearly move by the gear 133, so as to drive the first barrel 121 and the second barrel 122 to move along the shaft body 111 in the same or opposite directions simultaneously through the linear movement of the first rack 131 and the second rack 132, so as to adjust the pupil distance between the first barrel 121 and the second barrel 122.

In some embodiments, the head-mounted device 100 further comprises a pupil distance detection device (not shown in the figures) electrically connected to the linear actuator 13, the pupil distance detection device being configured to detect a pupil distance of a human eye;

the pupil distance adjusting device 10 controls the linear actuator 13 to drive the first barrel 121 and the second barrel 122 to move in the same or opposite directions along the shaft body 111 according to the human eye pupil distance detected by the pupil distance detecting device, so as to adjust the pupil distance between the first barrel 121 and the second barrel 122 to match the human eye pupil distance.

In some embodiments, the pupil distance detection apparatus includes a camera and a processing unit, the camera is disposed on the first lens barrel 121 and the second lens barrel 122 in the pupil distance adjustment apparatus 10, or disposed on the housing 20; the camera is used for collecting eyeball images, and the processing unit is used for carrying out image processing on the eyeball images according to a visual algorithm so as to detect the interpupillary distance of human eyes.

The camera may be mounted on the head-mounted device 100 to collect an eyeball image, the processing unit performs image processing on the eyeball image according to a vision algorithm to detect a pupil distance of a human eye, and transmits the pupil distance data of the human eye to the linear actuator 13, and the linear actuator 13 drives the first lens barrel 121 and the second lens barrel 122 to achieve a movement approaching or separating through the combined actuation of the first rack 131, the second rack 132 and the gear 133, so as to achieve an automatic pupil distance adjusting function between the first lens barrel 121 and the second lens barrel 122.

For example, 2 cameras may be provided, and the 2 cameras may be respectively placed on the first barrel 121 and the second barrel 122 to move therewith, or may be provided on the housing 20, or may be fixedly placed on the fixing plate 11. If the camera is disposed on the housing 20 or is fixedly disposed on the fixing plate 11, the photographing vision of the camera needs to meet the condition of not being blocked by the lens barrel.

When the interpupillary distance of human eyes is detected, a camera is called to collect eyeball images, and preprocessing is carried out on the collected eyeball images through a processing unit, for example, the preprocessing comprises the steps of filtering, converting a color image into a gray image and the like; then, performing face detection and human eye detection by using a visual algorithm (such as an adaboost algorithm), positioning the position of the human eye, and performing segmentation; then, binarizing the eyeball image, performing one-time opening operation to divide the eyeball position, and determining the mass center by calculating the center moment; and then, the barycenter coordinates in the partial image are restored to the original eyeball image, and two barycenter distances are calculated to obtain the human eye pupil distance, for example, the human eye pupil distance can be a pixel, and if the human eye pupil distance with the unit of the pixel is required to be converted into cm or mm, calibration is required in advance to establish the coefficient of converting the pixel into the standard length unit.

In some embodiments, the headset 100 further includes a hall sensor (not shown in the figures) electrically connected to the linear actuator 13, where the hall sensor is disposed in the housing 20, and a magnetic member (not shown in the figures) is disposed on at least one of the first barrel 121 and the second barrel 122, and the hall sensor is used to detect the interpupillary distance between the first barrel 121 and the second barrel 122 by sensing the magnetic field strength of the magnetic member.

For example, the hall sensor may be disposed on the circuit board or disposed on the fixing board 11, at least one of the lens barrels is provided with a magnetic member such as a magnet, when the lens barrels are close, the magnet is close to the hall sensor, there is a magnetic field around the magnet, the strength of the magnetic field is weakened as the distance between the magnet and the hall sensor becomes larger, so that the hall sensor detects the position of the magnet attached to the lens barrel by sensing the strength of the magnetic field to realize the detection of the position of the lens barrel, so that the distance between the first lens barrel 121 and the second lens barrel 122 can be detected, the pupil distance between the first lens barrel 121 and the second lens barrel 122 can be further determined, the first lens barrel 121 and the second lens barrel 122 have a linkage relationship with the bracket of the second lens barrel 122, and the pupil distance between the first lens barrel 121 and the second lens barrel 122 can be determined by detecting the magnet on one lens barrel.

For example, the headset 100 may also include a strap 30 and a battery compartment 40. Wherein both ends of the case 20 are connected to the strap 30, respectively, and at least one end of the battery compartment 40 is connected to the strap 30. In the worn state, the battery compartment 40 is located behind the user's head, the pupil distance adjusting device 10 in the housing 20 is located in front of the user's head, and the battery compartment 40 and the housing 20 are fixed to the user's head by the strap 30.

For example, a heat sink may be disposed within the housing 20 of the headset 100, such as a heat sink may be a heat dissipating fan, heat sink, or the like.

For example, the casing 20 of the head-mounted device 100 has a cover 21 covering the outer walls of the first barrel 121 and the second barrel 122, and the cover 21 is formed with a nose pad 22. In the worn state, the edge of the mask body 21 may be fitted to the face of the user, and the nose pad 22 may be used to place the housing 20 on the nose of the user. For example, the cover 21 may also be provided with a gasket that may be used to prevent friction of the cover 21 against hard contact with the user's face. For example, nose pads may also be provided on the nose pads 22, which may be used to prevent friction of the housing 20 against hard contact with the user's nose. For example, the cushion and nose pad may be composed of soft materials such as sponge, silicone, and the like.

All the above technical solutions may be combined to form an optional embodiment of the present application, which is not described here in detail.

The embodiment of the application provides a head-mounted device 100, which comprises a shell 20 and a pupil distance adjusting device 10 of any embodiment, wherein the pupil distance adjusting device 10 is arranged in the shell 20, the pupil distance adjusting device 10 is applied to the head-mounted device 100, and the pupil distance adjusting device 10 comprises a fixed plate 11, a first lens barrel 121, a second lens barrel 122 and a linear actuator 13; the fixed plate 11 is provided with a shaft body 111; each lens barrel is provided with a sliding part 1201, and the sliding part 1201 is movably sleeved on the shaft body 111; the linear actuator 13 is disposed on the fixed plate 11, the linear actuator 13 includes a first rack 131, a second rack 132, a gear 133, and an actuating module 134, the first rack 131 is connected to the first barrel 121, the second rack 132 is connected to the second barrel 122, the first rack 131 and the second rack 132 disposed in parallel are respectively meshed with the gear 133, the actuating module 134 is connected to the second rack 132, the actuating module 134 is used for driving the second rack 132 to linearly move, and the first rack 131 is jointly driven to linearly move by the gear 133, so as to drive the first barrel 121 and the second barrel 122 to move along the shaft body 111 in the same or opposite directions simultaneously through the linear movement of the first rack 131 and the second rack 132, so as to adjust the pupil distance between the first barrel 121 and the second barrel 122. According to the embodiment of the application, the first lens barrel 121 and the second lens barrel 122 can be driven to move simultaneously through the linear actuator 13, so that the automatic adjustment of the interpupillary distance is realized, the operation cost of a user is reduced, and the adjustment efficiency is improved; the pupil distance adjusting device 10 occupies small space when being applied to the head-mounted equipment 100, has high space utilization rate, can reserve more space for other electronic devices, can realize the function of automatically adjusting the pupil distance, improves the use efficiency of the head-mounted equipment 100, and improves the use experience of users.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the description of the embodiments of the present application, a particular feature, structure, material, or characteristic may be combined in any one or more embodiments or examples in a suitable manner.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A pupil distance adjusting apparatus, the pupil distance adjusting apparatus being applied to a head-mounted device, the pupil distance adjusting apparatus comprising:

the fixing plate is provided with a shaft body;

the sliding piece is movably sleeved on the shaft body;

the linear actuator is arranged on the fixed plate and comprises a first rack, a second rack, a gear and an actuating module, wherein the first rack is connected with the first lens cone, the second rack is connected with the second lens cone, the first rack and the second rack which are arranged in parallel are respectively meshed with the gear, the actuating module is connected with the second rack, the actuating module is used for driving the second rack to linearly move, and the first rack is jointly driven to linearly move through the gear so as to simultaneously drive the first lens cone and the second lens cone to move along the same or opposite directions of the axial body through the linear movement of the first rack and the second rack, so that the pupil distance between the first lens cone and the second lens cone is adjusted.

2. The pupil distance adjusting apparatus as claimed in claim 1, wherein the actuating module includes a driving element and a slider, the actuating module is connected to the second rack through the slider, and the actuating module drives the slider to move linearly through the driving element, so as to drive the second rack to move linearly.

3. The pupil distance adjusting device according to claim 1, wherein the fixing plate is further provided with a shaft body connecting piece, the shaft body connecting piece comprises a shaft body supporting seat and a shaft body supporting frame, the shaft body supporting seat is arranged on the fixing plate, the shaft body supporting frame is connected to the shaft body supporting seat, the shaft body supporting frame is provided with a through hole, and the shaft body is inserted into the through hole on the shaft body supporting frame.

4. The pupil distance adjusting device as claimed in claims 1-3, wherein the first lens barrel and the second lens barrel are arranged on the front surface of the fixed plate, the shaft body and the shaft body connecting piece are arranged on two side edges of the back surface of the fixed plate, a first sliding groove is arranged on the fixed plate at a position corresponding to the shaft body, and the sliding piece on the first lens barrel and the second lens barrel is movably sleeved on the shaft body through the first sliding groove.

5. The pupil distance adjusting device according to claim 4, wherein the linear actuator is disposed on a back surface of the fixed plate, a second sliding groove is disposed on the fixed plate at a position corresponding to the first rack, and a third sliding groove is disposed on the fixed plate at a position corresponding to the second rack;

the first lens barrel is provided with a first connecting piece, and the second lens barrel is provided with a second connecting piece;

the first connecting piece on the first lens cone penetrates through the second sliding groove to be connected with the first rack, and the second connecting piece on the second lens cone penetrates through the third sliding groove to be connected with the second rack.

6. The pupil distance adjusting apparatus as claimed in claim 1, wherein each of the first lens barrel and the second lens barrel corresponds to at least two of the shaft bodies, wherein the at least two of the shaft bodies corresponding to each lens barrel are respectively disposed at two sides of the fixing plate.

7. A head-mounted device comprising a housing, and the pupil distance adjustment device of any one of claims 1 to 6 disposed within the housing.

8. The head-mounted device of claim 7, further comprising a pupil distance detection device electrically connected to the linear actuator, the pupil distance detection device to detect a human eye pupil distance;

the pupil distance adjusting device controls the linear actuator to drive the first lens barrel and the second lens barrel to move along the same or opposite directions along the shaft body according to the pupil distance of the human eye detected by the pupil distance detecting device so as to adjust the pupil distance between the first lens barrel and the second lens barrel to be matched with the pupil distance of the human eye.

9. The head-mounted apparatus according to claim 8, wherein the pupil distance detection device includes a camera and a processing unit, the camera being provided on the first lens barrel and the second lens barrel in the pupil distance adjustment device or on the housing; the camera is used for collecting eyeball images, and the processing unit is used for carrying out image processing on the eyeball images according to a vision algorithm so as to detect the interpupillary distance of human eyes.

10. The head-mounted device of claim 8, further comprising a hall sensor electrically connected to the linear actuator, the hall sensor being disposed in the housing, at least one of the first barrel and the second barrel being provided with a magnetic member, the hall sensor being configured to detect a interpupillary distance between the first barrel and the second barrel by sensing a magnetic field strength of the magnetic member.