CN215494315U - Lens subassembly and VR glasses - Google Patents

Abstract

The utility model discloses a lens assembly, which comprises a lens, a first lens frame, a second lens frame, a sensor assembly, a controller, a power supply module and an elastic assembly, wherein the first lens frame is arranged on the first side of the lens; the lens is embedded in the first frame; the second frame comprises a first side and a second side which are opposite; one end of the elastic component is fixed on the first side, and the other end of the elastic component is fixed on the first mirror frame; a plurality of Hall elements are arranged on the first side at intervals, and magnetic parts are arranged on the first mirror frame at positions corresponding to the Hall elements; the controller, the power supply module and the sensor assembly are fixed on the second side, the power supply module is electrically connected with the Hall element, and the controller is respectively electrically connected with the sensor assembly and the power supply module; the controller is used for acquiring the focusing position of the eyeball of the wearer, which is detected by the sensor assembly, and when the focusing position deflects from the preset focusing position, the power supply module is controlled to apply currents corresponding to the deflection angles to the Hall elements respectively, so that the magnetic piece drives the lens to deflect, and the focus direction of the eyeball is ensured to be consistent with the focusing direction of the lens.

Description

Lens subassembly and VR glasses

Technical Field

The utility model belongs to the technical field of wearable equipment, and particularly relates to a lens assembly and VR glasses.

Background

With the continuous improvement of scientific technology, VR (Virtual Reality) glasses have been applied to the lives of people.

In the prior art, VR glasses calculate the focus position of an eyeball by using an eyeball tracking method, and the calculation is performed on the premise that the focus direction of a spectacle lens is consistent with the focus direction of the eyeball, so that the spectacle lens can move correspondingly when the orientation of the eyeball moves.

However, the spectacle lens is difficult to rotate with the eyeball in a high speed and all directions, the response is slow, and the accuracy of the calculated focusing position of the eyeball is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide a lens assembly and VR glasses, and the lens assembly and the VR glasses can solve the problem that the accuracy of an eyeball focusing position calculated by an eyeball tracking method adopted by VR glasses in the prior art is low.

In order to solve the technical problem, the utility model is realized as follows:

in a first aspect, an embodiment of the present invention provides a lens assembly, including: the device comprises a lens, a first frame, a second frame, a sensor assembly, a controller, a power module and an elastic assembly;

the lens is embedded in the first mirror frame;

the second frame comprises a first side and a second side which are opposite, and the first side is close to the lens;

one end of the elastic component is fixed on the first side, and the other end of the elastic component is fixed on the first mirror frame;

a plurality of Hall elements are arranged on the first side at intervals, and magnetic parts are arranged on the first mirror frame at positions corresponding to the Hall elements;

the controller, the power module and the sensor assembly are respectively fixed on the second side, the power module is electrically connected with the Hall element, and the controller is respectively electrically connected with the sensor assembly and the power module;

the controller is used for acquiring the focusing position of the eyeball of the wearer detected by the sensor assembly, and controlling the power supply module to apply different currents to the Hall elements when the focusing position deviates from a preset position, so that the magnetic part drives the lens to be adjusted to a target position.

In a second aspect, an embodiment of the utility model provides VR glasses, which specifically include the lens assembly.

In the embodiment of the utility model, the lens is embedded in the first lens frame, the second lens frame is sleeved outside the first lens frame, the second lens frame comprises a first side and a second side which are opposite, the first side is close to the lens, one end of the elastic component is fixed on the first side of the second lens frame, the other end of the elastic component is fixed on the first lens frame, and therefore, the lens is in a suspended state. The first side of the second frame is provided with a plurality of Hall elements at intervals along the circumferential direction, the first frame is provided with magnetic parts at positions corresponding to the Hall elements, the controller, the power supply module and the sensor assembly are respectively fixed at the second side, the power supply module is electrically connected with the Hall elements, the controller is electrically connected with the sensor assembly and the power supply module respectively, the controller acquires the focusing position of eyeballs of a wearer detected by the sensor assembly, when the acquired focusing position deflects from the preset focusing position, the controller controls the power supply module to apply current corresponding to the deflection angle to the Hall elements respectively, at the moment, the Hall elements have corresponding magnetic field sizes and directions and generate acting force with the corresponding magnetic parts respectively, a part of the Hall elements 7 generate attraction force with the magnetic parts 8, and a part of the Hall elements 7 generate repulsion force with the magnetic parts 8, thus, each magnetic part can drive the first spectacle frame to deflect, and further drive the lens to deflect to a target position, so that the focal direction of the eyeball of the wearer is consistent with the focusing direction of the lens. Compared with the prior art, because the lens of this embodiment is unsettled state, the lens can deflect at each angle, and the glasses lens can follow the eyeball and carry out high speed, omnidirectional rotation, and the response is fast, and the precision of the focus position of eyeball that calculates is high.

Drawings

FIG. 1 is a schematic view of a lens assembly according to an embodiment of the utility model;

FIG. 2 is an exploded view of the lens assembly of FIG. 1;

FIG. 3 is a schematic view of a first portion of a lens assembly according to an embodiment of the utility model;

FIG. 4 is a schematic view of a second portion of a lens assembly according to an embodiment of the utility model;

FIG. 5 is a schematic view of an embodiment of a lens assembly in use;

FIG. 6 is a second schematic view of an applied lens assembly according to an embodiment of the utility model;

FIG. 7 is a schematic view of a second frame of the lens assembly according to the embodiment of the utility model;

fig. 8 is a partial enlarged view of fig. 7 at M.

Description of reference numerals:

1-a lens, 2-a first frame, 21-a second groove, 22-a second annular bulge, 3-a second frame, 31-a first groove, 32-a first annular bulge, 33-an annular placement groove, 34-a placement groove, a sensor component, 41-an eyeball tracking sensor, 5-a circuit board, 6-an elastic component, 61-an elastic component, 7-a Hall element, 8-a magnetic component, 9-a first protection cover, 91-a mounting hole, 10-a second protection cover, and 11-a screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that embodiments of the utility model may be practiced otherwise than as specifically illustrated and described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The lens assembly and the glasses provided by the embodiments of the present invention are described in detail with reference to the accompanying drawings.

In an embodiment of the present invention, a lens assembly is provided in the present embodiment, and referring to fig. 1 to 6, the lens assembly may specifically include a lens 1, a first frame 2, a second frame 3, a sensor assembly 4, a controller, a power module, and an elastic assembly 6; the lens 1 is embedded in the first frame 2; the second frame 3 comprises a first side and a second side opposite to each other, the first side is close to the lens 1; one end of the elastic component 6 is fixed on the first side, and the other end is fixed on the first spectacle frame 2; a plurality of Hall elements 7 are arranged on the first side at intervals, and magnetic parts 8 are arranged at the positions of the first lens frame 2 corresponding to the Hall elements 7; the controller, the power supply module and the sensor assembly 4 are respectively fixed on the second side, the power supply module is electrically connected with the Hall element 7, and the controller is respectively electrically connected with the sensor assembly 4 and the power supply module; the controller is used for acquiring the focusing position of the eyeball of the wearer, which is detected by the sensor assembly 4, and when the focusing position and the preset focusing position deflect, the power supply module is controlled to apply currents corresponding to the deflection angles to the Hall elements 7 respectively so that the magnetic part 8 drives the lens 1 to deflect to the target position, and therefore the focus direction of the eyeball of the wearer is ensured to be consistent with the focusing direction of the lens 1. Compared with the prior art, because the lens 1 of this embodiment is unsettled state, lens 1 can deflect at each angle, and glasses lens 1 can follow eyeball and carry out high speed, omnidirectional rotation, and the response is fast, and the precision of the focus position of eyeball that calculates is high.

Specifically, as shown in fig. 1 to 3, the lens 1 is embedded in the first frame 2, the shape of the first frame 2 is adapted to the shape of the lens 1, the first frame 2 has an annular structure, and the lens 1 is embedded in the annular inner wall of the first frame 2. An annular groove can be arranged on the annular inner wall of the first spectacle frame 2, and the lens 1 is embedded in the annular groove. In order to improve the installation stability of the lens 1, the lens 1 may be bonded in the annular groove by a bonding medium, where the bonding medium may be glue, a double-sided tape, and the like.

Specifically, as shown in fig. 2, the second frame 3 includes a first side and a second side opposite to each other, the first side is close to the lens 1, and in practical applications, when the VR glasses with the lens 1 assembly are worn by the wearer, the first side is far away from the eyeball of the wearer, and the second side is close to the eyeball of the wearer. One end of the elastic component 6 is fixed on the first side of the second frame 3, and the other end is fixed on one side of the first frame 2 close to the second frame 3, so that the elastic component 6 can connect the second frame 3 and the first frame 2 together, and at this time, the lens 1 is in a suspended state and can deflect at any angle.

Specifically, as shown in fig. 2, a plurality of hall elements 7 are provided at intervals on the first side of the second frame 3, and since the second frame 3 is of an annular structure, the plurality of hall elements 7 are fixed at intervals in the circumferential direction on the first side. The first frame 2 is provided with magnetic members 8 at positions corresponding to the hall elements 7 on a side thereof close to the second frame 3, that is, one hall element 7 corresponds to one magnetic member 8, and the magnetic member 8 may be a permanent magnet or other magnetic device. As is well known to those skilled in the art, the hall element 7 is a semiconductor using the hall effect, and may be a magnetic sensor based on the hall effect. If a current is applied to a semiconductor in a magnetic field that is oriented perpendicular to the direction of the applied voltage, another voltage, called a hall voltage, is generated in a direction that is both perpendicular to the magnetic field and perpendicular to the direction of the applied current, a phenomenon known as the hall effect.

Specifically, as shown in fig. 2 and 4, the controller, the power supply module, and the sensor assembly 4 are respectively fixed to a second side (a side close to the eyeball) of the second lens frame 3. The power supply module is electrically connected to the hall elements 7 so that current can be applied to the hall elements 7, and one hall element 7 corresponds to one magnetic member 8 so that each hall element 7 can generate a hall voltage.

Specifically, the sensor assembly 4 can detect the focus position of the wearer's eyeball (hereinafter simply referred to as eyeball). The controller is respectively electrically connected with the sensor assembly 4 and the power supply module, and after acquiring the focusing position detected by the sensor assembly 4, the controller compares the focusing position with a preset focusing position, referring to fig. 5, when a wearer wears the VR glasses with the lens 1 assembly, and the wearer looks ahead, the eyeball center a, the focusing point b of the lens 1 and the focusing point c of the eyeball (on the screen 11) are located on the same horizontal line, wherein the preset focusing position is the focusing position c of the eyeball (on the screen 11) or the focusing point b of the lens 1 under the condition. With reference to the fact that the focus point b of the lens 1 and the focus point c of the eyeball (on the screen 11) are located on the same horizontal line, when the focus position of the eyeball obtained by the controller is deflected from the preset focus position, referring to fig. 2, when the eyeball of the wearer rotates by an angle, the center a of the eyeball deflects by an angle, and the focus point c of the eyeball on the screen 11 also deflects by an angle, the controller controls the power supply module to apply a current (specifically, the magnitude and the direction of the current) corresponding to the deflected angle to each hall element 7, and each hall element 7 has a corresponding magnitude and a corresponding direction of a magnetic field according to the hall effect, at this time, each hall element generates an acting force with the corresponding magnetic member 8, that is, a part of the hall elements 7 generates an attractive force with the magnetic member 8, a part of the hall elements 7 generates a repulsive force with the magnetic member 8, and because the first spectacle frame 2 is connected with the second spectacle frame 3 through the elastic assembly 6, thus, the magnetic member 8 can drive the first frame 2 to deflect by a corresponding angle, so as to drive the lens 1 to deflect by a corresponding angle, so that the lens 1 is deflected to a target position, and when the lens 1 is at the target position, the focusing direction of the lens 1 is consistent with the focusing direction of the eyeball. Compared with the prior art, because the lens 1 of this embodiment is unsettled state, lens 1 can deflect at each angle, and glasses lens 1 can follow eyeball and carry out high speed, omnidirectional rotation, and the response is fast, and the precision of the focus position of eyeball that calculates is high.

It should be noted that the deflection angle between the focus position acquired by the controller and the preset focus position has a corresponding relationship with each hall element 7, that is, the deflection angle corresponds to different current magnitudes and directions corresponding to each hall element 7. Referring to fig. 6, when the center a of the eyeball is deflected to the left, the focal point c of the eyeball is also deflected to the left, and in order to make the focusing direction of the eyeball coincide with the focusing direction of the lens 1, it is necessary that the left portion of the lens 1 is deflected toward the eyeball and the right portion is deflected away from the eyeball, and therefore, it is necessary that the hall element 7 of the left portion of the second frame 3 generates a repulsive force with the magnetic member 8 of the left portion of the first frame 2 and the hall element 7 of the right portion of the second frame 3 generates an attractive force with the magnetic member 8 of the right portion of the first frame 2, and it can be seen that the magnitude and direction of the repulsive force or attractive force between the hall element 7 and the magnetic member 8 are determined by the magnitude and direction of the current applied by the hall element 7.

The second frame 3 of this embodiment is originally shaped like a cylinder, and for the first side, a material extending from the inner wall to the outer wall of the cylinder to a predetermined distance is cut to a predetermined thickness, and in this case, the structure of the first side can be as shown in fig. 7, a plurality of hall elements 7 are disposed at intervals in the circumferential direction on the surface of the first side from which the material is cut, and one end of the elastic member 6 is fixed on the surface.

In the practice of the present invention, the sensor assembly 4 includes a plurality of eye tracking sensors 41; the eyeball tracking sensors 41 are arranged at intervals along the circumferential direction of the second side and are respectively and electrically connected with the controller; the controller is further configured to calculate a focus position based on the acquired focus value of the wearer's eye detected by each eye tracking sensor 41.

Specifically, the eye tracking sensor 41 is used to track the eye movement of the wearer to determine the current focus position of the eye. In this embodiment, the eyeball tracking sensor 41 may detect a current focusing position of an eyeball of the wearer (i.e. a central position of the eyeball), and send a focusing value (e.g. a three-dimensional coordinate value) corresponding to the focusing position to the controller. As shown in fig. 2 and 4, since the focused position of the eyeball is spatially, in order to accurately calculate the focused position of the eyeball, the eyeball tracking sensors 41 are provided at a plurality of positions of the second side of the frame of the eyeglasses with respect to the eyeball, and finally, the values detected by the respective eyeball tracking sensors 41 are integrated, and the obtained average value can be used as the final focused position of the eyeball. In practical applications, the more the eyeball tracking sensor 41 is set, the higher the accuracy of calculating the focus position of the eyeball. The specific number of the eyeball tracking sensors 41 in the embodiment may not be limited, and may be set according to actual requirements. It should be noted that the specific structure of the eyeball tracking sensor 41 and the method for tracking the eyeball are the prior art, and are not described herein again.

Specifically, the elastic member 61 may be a spring, a rubber block, or other elastic member, and the specific type of the elastic member 61 in this embodiment may not be limited, and may be set according to actual requirements.

Specifically, in order to improve the accuracy of the focus position of the eyeball, the plurality of eyeball tracking sensors 41 of the present embodiment are uniformly disposed on the second side.

In the embodiment of the utility model, a plurality of first grooves 31 are arranged at intervals along the circumferential direction on the first side, and one first groove 31 corresponds to one Hall element 7; each hall element 7 is fixed in the corresponding first recess 31.

Specifically, referring to fig. 7 and 8, a plurality of first grooves 31 are formed in the first side of the middle frame of the eyeglasses at intervals along the circumferential direction, and one hall element 7 is fixed in each groove, so that the hall element 7 can be conveniently placed, and the position of the hall element 7 can be determined to determine the position of the magnetic member 8 and further determine the turning angle of the lens 1.

Specifically, in order to further accurately adjust the deflection angle of the lens 1, the plurality of first grooves 31 of the present embodiment may be uniformly disposed on the first side of the second rim 3, the hall elements 7 may be disposed in the center areas of the corresponding first grooves 31, and the magnetic members 8 may be disposed corresponding to the corresponding hall elements 7.

In the embodiment of the present invention, as shown in fig. 2, the elastic member 6 includes a plurality of elastic members 61 arranged at intervals; one elastic piece 61 corresponds to one first groove 31, and each elastic piece 61 is sleeved outside the corresponding Hall element 7; one end of each elastic member 61 is fixed to the bottom of the corresponding first groove 31, and the other end is fixed to the first frame 2.

Specifically, the elastic member 61 includes a plurality of elastic members 61 arranged at intervals, one elastic member 61 corresponds to one first groove 31, that is, as shown in fig. 8, one elastic member 61 is sleeved outside one hall element 7 in one first groove 31, one end of one elastic member 61 is fixed to the bottom of the first groove 31, and the other end is fixed to the first frame 2, so that the structure of the lens 1 assembly is more compact and beautiful.

In the embodiment of the present invention, as shown in fig. 3, a second groove 21 is provided at a position opposite to the first groove 31 on a side of the first rim 2 close to the second rim 3; each magnetic member 8 is fixed in the corresponding second groove 21; one elastic member 61 corresponds to one second groove 21, and the other end of each elastic member 61 is respectively sleeved outside the corresponding magnetic member 8 and fixed at the bottom of the corresponding second groove 21.

In particular, as shown in figure 3, the side of the first frame 2 close to the second frame 3 is provided with second grooves 21 in a position opposite to the first grooves 31, it being possible to see that a plurality of second grooves 21 are uniformly arranged around the lens 1. One second groove 21 corresponds to one magnetic part 8, one magnetic part 8 is fixed in one groove, and the other end of one elastic part 61 is sleeved outside the corresponding magnetic part 8 and is fixed at the bottom of the second groove 21.

It should be noted that two ends of the elastic member 61 may be fixed to the groove bottom of the corresponding groove through a bonding medium, where the bonding medium may be glue, a double-sided tape, and the like.

In the embodiment of the present invention, as shown in fig. 8, a first annular protrusion 32 is provided in each first groove 31, and a second annular protrusion 22 is provided in each second groove 21; the hall elements 7 in the first grooves 31 are respectively positioned in the corresponding first annular protrusions 32; the magnetic members 8 in the second grooves 21 are respectively positioned in the corresponding second annular bulges 22; one end of each elastic member 61 is respectively sleeved outside the corresponding first annular protrusion 32, and the other end is respectively sleeved outside the corresponding second annular protrusion 22.

Specifically, in the present embodiment, the first annular protrusion 32 is provided in each first groove 31, the second annular protrusion 22 is provided in each second groove 21, and the hall element 7 is located in the first annular protrusion 32, so that the arrangement position of the hall element 7 can be more accurate, and similarly, for one second groove 21, the magnetic member 8 is located in the second annular protrusion 22, so that the arrangement position of the magnetic member 8 can be more accurate. As shown in fig. 8, one end of each elastic member 61 is respectively sleeved outside the corresponding first annular protrusion 32, and the other end is respectively sleeved outside the corresponding second annular protrusion 22, so that the radial position of the elastic member 61 can be limited to prevent the elastic member 61 from easily shaking to affect the position of the lens 1, and the damage to the hall element 7 caused by the elastic member 61 when the lens 1 is driven to deflect can be avoided.

In an embodiment of the present invention, as shown in fig. 4, the lens 1 assembly further includes: the circuit board, the controller and the power module are integrated on the circuit board; the second side of the second spectacle frame 3 is provided with an annular placing groove 33; the shape of the circuit board is matched with that of the annular placing groove 33, and the circuit board is fixed in the annular placing groove 33; a plurality of receiving grooves 34 are formed at intervals on the bottom of the annular receiving groove 33, and one eye tracking sensor 41 is fixed in one receiving groove 34.

Specifically, the controller and the power module are integrated on the circuit board, and the method for integrating belongs to the prior art and is not described herein again. As shown in fig. 4, the second side of the second frame 3 is provided with an annular placing groove 33, the shape of the circuit board is matched with the shape of the annular placing groove 33, and the circuit board can be fixed in the annular placing groove 33 through a bonding medium, so that the assembly of the lens 1 can be improved, and the mounting stability of the circuit board can also be improved.

Specifically, as shown in fig. 4, a plurality of mounting grooves 34 are formed at intervals at the bottom of the annular mounting groove 33, and one eye tracking sensor 41 is fixed in one mounting groove 34, so that not only the eye tracking sensor 41 can be conveniently mounted, but also the position of the eye tracking sensor 41 can be more accurate, thereby improving the accuracy of the focusing position of the eye.

In an embodiment of the utility model, the lens 1 assembly further comprises: a first protective cover 9; the shape of the first protective cover 9 is matched with the circuit board, and the first protective cover 9 is arranged on the circuit board in a covering mode; the first protective cover 9 has mounting holes 91 at positions opposite to the respective eye tracking sensors 41, the mounting holes 91 penetrate through the circuit board 5, and the respective eye tracking sensors 41 penetrate through the corresponding mounting holes 91.

Specifically, as shown in fig. 2 and 4, the first protection cover 9 is adapted to the circuit board in shape, and the first protection cover 9 covers the circuit board to protect the controller and the power module on the circuit board from being directly damaged.

Specifically, as shown in fig. 4, the first protection cover 9 is provided with mounting holes 91 at positions corresponding to the eyeball-tracking sensors 41, the mounting holes 91 penetrate through the circuit board 5, and the eyeball-tracking sensors 41 respectively penetrate through the corresponding mounting holes 91, so that when a wearer wears VR glasses with the lens assembly, the distance from the eyeball-tracking sensors 41 to the eyeball is shorter, and the detected focus value of the eyeball is more accurate. In order to improve the aesthetic property of the lens assembly, the eye-tracking sensor 41 does not protrude from the first protection cover.

In an embodiment of the utility model, the lens 1 assembly further comprises: a second protective cover 10; the shape of the second protective cover 10 is matched with the first frame 2, and the second protective cover 10 is covered on the first frame 2 and attached to the first side of the second frame 3.

Specifically, as shown in fig. 1 and 2, the second protective cover 10 is shaped to fit the first frame 2, the second protective cover 10 covers the first frame 2, and the surface of the second protective cover 10 close to the second frame 3 is attached to the first side of the second frame 3, so that the elastic member 61 and the magnetic member 8 on the first frame 2 can be protected from being directly damaged.

Further, in order to improve the mounting stability of the lens 1 assembly, the surface of the second protective cover 10 adjacent to the second rim 3 may be bonded to the first side of the second rim 3 by an adhesive medium. The bonding medium may be glue, a double-sided tape, or the like, and the bonding medium in this embodiment may not be limited, and may be specifically set according to an actual situation.

In the embodiment of the utility model, the lens component has at least the following advantages:

in the embodiment of the utility model, the lens is embedded in the first lens frame, the second lens frame is sleeved outside the first lens frame, the second lens frame comprises a first side and a second side which are opposite, the first side is close to the lens, one end of the elastic component is fixed on the first side of the second lens frame, the other end of the elastic component is fixed on the first lens frame, and therefore, the lens is in a suspended state. The first side of the second frame is provided with a plurality of Hall elements at intervals along the circumferential direction, the first frame is provided with a magnetic part at the position corresponding to each Hall element, the controller, the power module and the sensor assembly are respectively fixed at the second side, the power module is electrically connected with the Hall elements, the controller is respectively electrically connected with the sensor assembly and the power module, the controller acquires the focusing position of the eyeball of the wearer detected by the sensor assembly, when the acquired focusing position and the preset focusing position are deflected, the controller controls the power supply module to apply currents corresponding to the deflection angle to the Hall elements respectively, at the moment, the Hall elements have corresponding magnetic field sizes and directions, and respectively generate acting force with the corresponding magnetic parts, so that each magnetic part can drive the first mirror frame to deflect, and further drive the lens to deflect to the target position, so that the focal direction of the eyeball of the wearer is consistent with the focusing direction of the lens. Compared with the prior art, because the lens of this embodiment is unsettled state, the lens can deflect at each angle, and the glasses lens can follow the eyeball and carry out high speed, omnidirectional rotation, and the response is fast, and the precision of the focus position of eyeball that calculates is high.

In an embodiment of the present invention, a VR glasses is further provided, which may specifically include the above lens assembly.

Specifically, the VR glasses include the above two sets of lens components, and a lens component is installed in a frame of the VR glasses, and the specific structure and the working principle of the above lens components are described in detail above.

Because the advantages of the VR glasses and the lens assembly are the same, they are not further described here.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. A lens assembly, comprising: the device comprises a lens, a first frame, a second frame, a sensor assembly, a controller, a power module and an elastic assembly;

the lens is embedded in the first mirror frame;

the second frame comprises a first side and a second side which are opposite, and the first side is close to the lens;

one end of the elastic component is fixed on the first side, and the other end of the elastic component is fixed on the first mirror frame;

a plurality of Hall elements are arranged on the first side at intervals, and magnetic parts are arranged on the first mirror frame at positions corresponding to the Hall elements;

the controller, the power module and the sensor assembly are respectively fixed on the second side, the power module is electrically connected with the Hall element, and the controller is respectively electrically connected with the sensor assembly and the power module;

the controller is used for acquiring the focusing position of the eyeball of the wearer detected by the sensor assembly, and controlling the power supply module to apply current corresponding to the deflection angle to each Hall element when the focusing position and the preset focusing position deflect so that the magnetic part drives the lens to deflect to the target position.

2. The lens assembly of claim 1, wherein the sensor assembly includes a plurality of eye tracking sensors;

the eyeball tracking sensors are arranged at intervals along the circumferential direction of the second side and are respectively and electrically connected with the controller;

the controller is further configured to calculate the focus position according to the acquired focus values of the wearer's eyeballs detected by the respective eye tracking sensors.

3. The lens assembly of claim 1, wherein the first side has a plurality of first grooves circumferentially spaced apart, one of the first grooves corresponding to one of the hall elements;

and each Hall element is respectively fixed in the corresponding first groove.

4. The lens assembly of claim 3, in which the resilient assembly includes a plurality of resilient members disposed at intervals;

one elastic piece corresponds to one first groove, and each elastic piece is sleeved outside the corresponding Hall element;

one end of each elastic piece is fixed at the bottom of the corresponding first groove, and the other end of each elastic piece is fixed at the first mirror frame.

5. The lens assembly of claim 4, wherein a side of the first frame proximate the second frame is provided with a second groove opposite the first groove;

each magnetic piece is fixed in the corresponding second groove;

one elastic piece corresponds to one second groove, and the other end of each elastic piece is sleeved outside the corresponding magnetic piece and fixed at the bottom of the corresponding second groove.

6. The lens assembly of claim 5, wherein a first annular protrusion is disposed in each of the first grooves and a second annular protrusion is disposed in each of the second grooves;

the Hall elements in the first grooves are respectively positioned in the corresponding first annular bulges;

the magnetic part in each second groove is respectively positioned in the corresponding second annular bulge;

one end of each elastic piece is respectively sleeved outside the corresponding first annular bulge, and the other end of each elastic piece is respectively sleeved outside the corresponding second annular bulge.

7. The lens assembly of claim 2, further comprising: the circuit board, the said controller and the said power module are integrated in the said circuit board;

an annular placing groove is formed in the second side of the second mirror frame, the shape of the circuit board is matched with that of the annular placing groove, and the circuit board is fixed in the annular placing groove;

the bottom of the annular placing groove is provided with a plurality of placing grooves at intervals, and the eyeball tracking sensor is fixed in one of the placing grooves.

8. The lens assembly of claim 7, further comprising: a first protective cover;

the first protective cover is matched with the circuit board in shape and is arranged on the circuit board in a covering mode;

the first protection cover is provided with mounting holes at positions opposite to the eyeball tracking sensors, the mounting holes penetrate through the circuit board, and the eyeball tracking sensors penetrate through the corresponding mounting holes respectively.

9. The lens assembly of claim 1, further comprising: a second protective cover;

the shape of the second protective cover is matched with that of the first mirror frame, and the second protective cover is covered on the first mirror frame and attached to the first side of the second mirror frame.

10. VR glasses comprising a lens assembly according to claims 1 to 9.

Images