CN108803040A - Vr equipment - Google Patents

Abstract

The present invention provides a VR device, comprising: a relatively rotatable outer lens barrel, an inner lens barrel, and a lens installed on the inner lens barrel and/or the outer lens barrel; the inner lens barrel and the outer lens One of the tubes is equipped with a first polarizing film, and the other is equipped with a second polarizing film; wherein, when the inner lens barrel and the outer lens barrel rotate relatively, the first polarizing film and the second polarizing film The polarization direction of the polarizing film remains the same or differs. The technical scheme of the present invention can perform light-shielding treatment on the lens on the VR device.

Description

VR equipment

technical field

The present invention relates to the field of optical technology, in particular to a VR device.

Background technique

VR (Virtual Reality, Virtual Reality) technology is a computer simulation system that can create and experience a virtual world. It uses a computer to generate a simulated environment, and through multi-source information fusion, interactive three-dimensional dynamic vision and entity behavior The system simulation immerses the user in this simulated environment.

Existing VR devices include a lens for viewing virtual images, through which a user views a display screen fixed inside the VR device or detachably installed on the VR device. When the VR device is in an external environment with strong light, more light passes through the lens and reaches the vicinity of the display screen. If too much light reaches the vicinity of the display, it can easily damage the display. In order to solve this defect, a new VR device needs to be proposed urgently.

Contents of the invention

The present invention provides a VR device, which is used for shading a lens on the VR device.

The present invention provides a VR device, comprising: a relatively rotatable outer lens barrel, an inner lens barrel, and a lens installed on the inner lens barrel and/or the outer lens barrel; the inner lens barrel and the outer lens One of the tubes is equipped with a first polarizing film; the other is equipped with a second polarizing film; wherein, when the inner lens barrel and the outer lens barrel rotate relatively, the first polarizing film and the second polarizing film The polarization direction of the polarizing film remains the same or differs.

Further optionally, a guide rail extending non-axially is provided on the barrel of the outer lens barrel; a first sliding member adapted to the guide rail is fixed on the outer wall of the inner lens barrel; A sliding piece passes through the guide rail and is slidably connected with the guide rail.

Further optionally, the guide rail is provided in a non-circumferential direction of the cylinder; wherein, the projected length of the guide rail in the cylinder circumferential direction of the cylinder is 1/4 of the cylinder circumference length.

Further optionally, a positioning piece is provided on the barrel at a position close to the end of the guide rail close to the human eye side, the positioning piece is connected to the first sliding piece through an elastic element, and on the lens When in a non-use state, the elastic element is in a contracted state.

Further optionally, a ball bearing is provided on the end surface of the inner lens barrel close to the human eye side, and a second slider is fixed on the ball bearing, and the second slider can transmit pressure to the ball bearing. Drive the inner lens barrel to slide along the guide rail.

Further optionally, the guide rail is provided in the circumferential direction of the cylinder body, and the length of the guide rail is a quarter of the circumference of the cylinder.

Further optionally, the VR device further includes: a front case of the device and a rear case of the device buckled with the front case of the device; wherein, the front case of the device includes a lens frame provided with a through hole, and the outer lens barrel /or the inner lens barrel is installed in the through hole.

Further optionally, the VR device further includes: a left headband and a right headband respectively arranged on both sides of the rear case of the device or both sides of the front case of the device.

Further optionally, the VR device further includes: a front case of the device and a rear case of the device buckled with the front case of the device; wherein, the front case of the device includes a lens frame provided with a through hole, and the outer lens barrel Or the inner lens barrel is installed in the through hole; the lens frame is fixed with a first gear assembly, and the outer wall of the outer lens barrel is provided with a second gear assembly meshed with the first gear assembly. Two gear components.

Further optionally, the VR device further includes: a motor, a sensor and a control unit;

The first gear assembly is fixed on the motor; the control unit is electrically connected to the sensor and the motor, and is used to control the motor to drive the first gear assembly to rotate according to the detection result of the sensor .

In the VR device provided in the present invention, the outer lens barrel and the inner lens barrel can be rotated relative to each other, and then rotating the inner lens barrel or the outer lens barrel can change the polarization direction of the second polarizing film on the lens and the polarizing direction of the first polarizing film. The angle between the polarization directions. Based on the above structure, the light intensity of the light entering the VR device can be controlled, which is beneficial to protect the device on the object side of the lens.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of a three-dimensional structure of a VR device provided by an embodiment of the present invention;

Fig. 2 is a front view of the mechanical rotation structure of the outer lens barrel and the inner lens barrel provided by an embodiment of the present invention;

Fig. 3 is a front view of the mechanical rotation structure of the outer lens barrel and the inner lens barrel provided by another embodiment of the present invention;

Fig. 4 is a front view of the mechanical rotation structure of the outer lens barrel and the inner lens barrel provided by another embodiment of the present invention;

Fig. 5 is a front view of the mechanical rotation structure of the outer lens barrel and the inner lens barrel provided by another embodiment of the present invention;

Fig. 6a is a schematic three-dimensional structure diagram of a VR device provided by another embodiment of the present invention;

Fig. 6b is a top view of the structure in which the outer lens barrel is arranged in the lens frame according to an embodiment of the present invention;

Fig. 7 is a top view of the structure in which the outer lens barrel and the inner lens barrel are driven to rotate by a gear assembly according to an embodiment of the present invention;

Fig. 8 is a side view of the structure in which the outer lens barrel and the inner lens barrel are driven to rotate by a gear assembly according to another embodiment of the present invention;

Fig. 9 is a top view of the structure of the outer lens barrel and the inner lens barrel driven to rotate by the gear assembly according to another embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a VR device provided by an embodiment of the present invention. As shown in Fig. 1, the lens includes:

Relatively rotatable outer lens barrel 11, inner lens barrel 12, and lens 14 mounted on the inner lens barrel 12 and/or the outer lens barrel 11; one of the inner lens barrel 12 and the outer lens barrel 11 is equipped with a first polarizing film 13; the other is equipped with a second polarizing film 15; wherein, when the inner lens barrel 12 and the outer lens barrel 11 rotate relatively, the polarization directions of the first polarizing film 13 and the second polarizing film 15 remain the same or different.

Wherein, the lens 14 refers to a lens that can realize the function of a lens. For example, in a VR device, the lens 14 refers to a lens (single lens or lens group) that can form a magnified virtual image, including but not limited to a spherical lens, an aspheric lens, etc. lens or Fresnel lens.

Optionally, in this embodiment, the lens 14 may be a single lens installed in the inner lens barrel 12 or the outer lens barrel 11 , or may be a lens group installed in the inner lens barrel 12 and/or the outer lens barrel 11 .

In an optional embodiment, when the lens 14 is a single lens, the first polarizing film 13 can be arranged on the lens 14, and the second polarizing film 15 can be arranged on the flat mirror to form a polarizer; or, the first polarizing film 13 can be set on the plano mirror to form a polarizer, and the second polarizing film 15 can be set on the lens 14 . In FIG. 1 , the technical solution provided by the embodiment of the present invention is illustrated by taking the second polarizing film 15 disposed on the lens 14 as an example. It should be understood that the technical solution of the present invention includes but is not limited to the illustrated content.

When the second polarizing film 15 is provided on the lens 14 , the light with the same polarization direction as the second polarizing film 15 can pass through the lens 14 . By controlling the angle between the polarization directions of the first polarizing film 13 and the second polarizing film 15 , it is possible to control whether the light passing through the lens 14 can enter human eyes. In practice, the second polarizing film 15 can be pasted on the optical surface of the lens 14 close to the human eye side, or the second polarizing film 15 can be coated on the optical surface of the lens 14 close to the human eye side. No limit.

In another optional embodiment, when the lens 14 is a lens group, the first polarizing film 13 and the second polarizing film 15 can be respectively disposed on two different single lenses in the lens group. In this implementation manner, there is no need to introduce new lenses into the VR device, which is beneficial to making the VR device lighter.

In Fig. 1, it has been illustrated that the lens 14 provided with the second polarizing film 15 is installed in the outer lens barrel 11, and a situation in which the first polarizing film 13 is installed in the inner lens barrel 12; in practice, also can be: be provided with The lens 14 of the second polarizing film 15 is installed in the inner lens barrel 12 , and the first polarizing film 13 is installed in the outer lens barrel 11 , which is not limited in this embodiment.

Based on the working principle that the polarizing film can pass through the light with the same polarization direction, when the VR device is in use (the light from the object side can enter the human eye through the lens 14), the first polarizing film 13 and the second polarizing film 15 can be kept The polarization directions of the first polarizing film 13 and the second polarizing film 15 can be kept different when the VR device is not in use. Preferably, when the polarization directions of the first polarizing film 13 and the second polarizing film 15 are kept perpendicular to each other, the shielding effect on ambient light is optimal. Based on the structure provided in this embodiment, the setting of the polarization directions of the first polarizing film 13 and the second polarizing film 15 can be realized through the relative rotation between the inner lens barrel 12 and the outer lens barrel 11 .

Wherein, during relative rotation between the inner lens barrel 12 and the outer lens barrel 11, a force can be exerted on the outer lens barrel 11 so that the outer lens barrel 11 rotates around the outer wall of the inner lens barrel 12; Force, so that the inner lens barrel 12 rotates around the inner wall of the outer lens barrel 11, which is not limited in this embodiment.

In such a structure, the outer lens barrel 11 and the inner lens barrel 12 can rotate relatively, and then the polarization of the second polarizing film 15 and the first polarizing film 13 arranged on the lens 14 can be changed by rotating the inner lens barrel or the outer lens barrel. direction. When the VR device is not in use, the polarization directions of the first polarizing film 13 and the second polarizing film 15 can be kept different, which can weaken the intensity of external light passing through the lens, which is beneficial to protect the equipment on the object side of the lens. When the VR device is in use, the polarization directions of the first polarizing film 13 and the second polarizing film 15 can be kept the same, so that light from the object side passes through the lens smoothly.

Optionally, the inner lens barrel 12 and the outer lens barrel 11 may have the same diameter and have opposite end surfaces. In this embodiment, ring guide rails may be provided on the end surfaces of the inner lens barrel 12 and the outer lens barrel 11 to ensure relative rotation between the inner lens barrel 12 and the outer lens barrel 11 . Alternatively, the inner lens barrel 12 and the outer lens barrel 11 can be respectively fixed on two different supporting parts of the VR device, and by rotating these two different supporting parts, the inner lens barrel 12 and the outer lens barrel 11 can be relatively opposite to each other. rotate.

The embodiment in which the end faces of the inner lens barrel 12 and the outer lens barrel 11 face each other makes the VR device have a larger longitudinal size, which is not conducive to the miniaturization of the VR device. In a preferred embodiment, the diameter of the inner lens barrel 12 may be smaller than that of the outer lens barrel 11 , and one end of the inner lens barrel 12 may be located inside the outer lens barrel 11 . This embodiment is beneficial to reduce the longitudinal size of the VR device. The following sections will be described in conjunction with specific examples.

In an optional embodiment, the outer lens barrel 11 and the inner lens barrel 12 can realize mechanical relative rotation through guide rails and sliding parts.

In the embodiment of mechanical relative rotation, the cylinder body 110 of the outer lens barrel 11 can be provided with a guide rail 111 extending along the non-axial direction; Part 121 ; the first sliding part 121 passes through the guide rail 111 and is slidably connected with the guide rail 111 .

Wherein, the body 110 of the outer lens barrel 11 refers to other parts except the two end surfaces of the outer lens barrel 11 , that is, the side surfaces of the outer lens barrel 11 . Non-axial means that the extending direction of the guide rail 111 is not consistent with the direction of the central axis of rotation of the cylinder 110 . The guide rail 110 is non-axially designed so that the inner lens barrel 12 and the outer lens barrel 11 can be rotated with the central axis as the center of rotation, so as to finally change the polarizing direction between the first polarizing film 13 and the second polarizing film 15. The purpose of the included angle.

Wherein, the first sliding member 121 may be column-shaped or block-shaped, and its shape can be adapted to the shape of the guide rail 111 , which is not limited here. The first sliding member 121 is installed in the guide rail. When the inner lens barrel 12 or the outer lens barrel 11 is subjected to an external force, a relative sliding occurs between the first sliding member 121 and the guide rail 111, thereby driving the inner lens barrel 12 and the outer lens barrel. The cylinder 11 is relatively rotated.

When the cylinder body 110 of the outer lens barrel 11 is provided with a guide rail 111 extending along a non-axial direction, an optional implementation may be shown in FIG. 2 : the guide rail 111 is provided on the cylinder body 110 in a non-circumferential direction.

Wherein, the cylinder circumferential direction refers to a direction always perpendicular to the axial and radial directions of the cylinder 110 , that is to say, the guide rail 111 can be provided on the cylinder 110 along an oblique line, an arc or a helical trajectory. Such slanted, arc or helical trajectory can make relative sliding between the first sliding member 121 and the guide rail 111 occur when the inner lens barrel 12 or the outer lens barrel 11 is subjected to either a rotational force or a thrust force. In addition to the rotational movement, since the guide rail 111 extends along the non-circumferential direction of the barrel, when the first sliding member 121 and the guide rail 111 slide relative to each other, it can also drive the inner lens barrel 12 and the outer lens barrel 11 to produce a telescopic movement.

Optionally, in this embodiment, in order to prevent the telescopic movement between the inner lens barrel 12 and the outer lens barrel 11 from causing damage to the first polarizing film 13 or the lens 14 installed in the outer lens barrel 11, the guide rail 111 can be designed and the position of the first sliding member 121, make it meet the following conditions: when the first sliding member 121 slides from the starting end to the end of the guide rail 111, the end of the inner lens barrel 12 that is located in the outer lens barrel 11 is not in contact with the outer lens barrel 11 installed in the first polarizing film 13 or lens 14 contact.

Optionally, when the VR device is not in use, the angle between the polarization directions of the first polarizing film 13 and the second polarizing film 15 can be any of 45°, 60°, 90° or 0-90° angle (not including 0°), so that the polarization directions of the first polarizing film 13 and the second polarizing film 15 remain different. Preferably, when the polarization directions of the first polarizing film 13 and the second polarizing film 15 are 90° (orthogonal), the VR device has the strongest ability to shield external light.

Based on this, in order to ensure that the included angle of the polarization direction of the first polarizing film 13 and the second polarizing film 15 can be changed between 0°-90°, the projected length of the guide rail 111 on the cylindrical direction of the cylindrical body 110 can be designed as A quarter of the length of the cylinder circumference. Wherein, the length of the circumference of the cylinder refers to the length of the path obtained by making a complete circle along the circumference of the cylinder 110 . In practice, in order to facilitate the good rotation of the inner lens barrel 12 inside the outer lens barrel 11, the outer lens barrel 11 and the inner lens barrel 12 can be designed as cylindrical barrels. At this time, the circumferential direction of the cylinder is the circumferential direction of the cylinder, and the circumferential length of the cylinder is the circumferential length corresponding to the cross section of the cylinder. When the projected length of the guide rail 111 in the cylindrical direction of the cylinder body 110 is 1/4 of the length of the cylinder circumference, the first slider 121 rotates from the starting end of the guide rail 111 to the end or from the end of the guide rail 111 to the starting end. At this time, the inner lens barrel 12 just rotates a quarter of a circle angle (360° angle) relative to the outer lens barrel 11, and the included angle of the polarization direction of the first polarizing film 13 and the second polarizing film 15 produces a 90° angle thereupon. Variety.

Optionally, when the first sliding member 121 is located at one end of the guide rail 111 close to the human eye, the polarization directions of the first polarizing film 13 and the second polarizing film 15 may be set to be orthogonal. Furthermore, when the VR device is in the non-use state, the first sliding member 121 can be slid to the end of the guide rail 111 close to the human eye; when the VR device is in the use state, the user can apply a rotational force or a thrust to the inner lens barrel 12, The first sliding member 121 slides to the end of the guide rail 111 close to the object side. When the first sliding member 121 is located at the end of the guide rail 111 close to the object side, the polarization directions of the first polarizing film 13 and the second polarizing film 15 are consistent, and light can pass through the lens 14 .

In practice, if the inner lens barrel 12 is close to the user side and the outer lens barrel 11 is closer to the object side, the user can stick his eyes to the end of the inner lens barrel 12 that is not inside the outer lens barrel 11 when using the VR device, Apply pressure to the inner barrel 12. If the outer lens barrel 11 is close to the user side and the inner lens barrel 12 is closer to the object side, the user can stick his eyes on the end of the outer lens barrel 11 away from the inner lens barrel 12 when using the VR device, and give the outer lens barrel 11 axially put pressure on. In this scenario, with the user's actions, such as wearing the VR device or placing the VR device on the eyes, the VR device can be switched from the light-shielding state to the light-transmitting state without feeling, which greatly improves the user experience.

Optionally, on the basis of the structures described in the foregoing embodiments, the present invention further provides a VR device as shown in FIG. 3 . As shown in Figure 3, in addition to the structures described in the foregoing embodiments, a positioning piece 112 may be provided on the cylinder body 110 at a position close to the end of the guide rail 111 near the human eye side, and the positioning piece 112 and the first sliding piece 121 The connection is via elastic elements 16 . Wherein, the elastic element 16 may be a rubber band or a spring, which is not limited in this embodiment.

Wherein, the end of the guide rail 111 close to the human eye side may be the starting end of the guide rail 111 , and the positioning member 112 is used to limit the position of the first sliding member 121 through the elastic element 16 . When the VR device is in a non-use state, the first sliding member 121 is located at the starting end of the guide rail 111 , and the elastic element 16 is in a retracted state. When the VR device is in use, a rotational force or thrust can be applied to the inner lens barrel 12 or the outer lens barrel 11, so that the first sliding member 121 slides to the end of the guide rail 111 (the end close to the object side), at this time the elastic element 16 is stretched.

Based on the structure shown in Figure 3, when using a VR device, the user can stick his eyes on a lens barrel of the VR device close to the human eye, and apply an axial thrust to the lens barrel close to the human eye. With the action of the user, the first sliding member 121 slides from the starting end to the end of the guide rail 111 , and the VR device switches from the light-shielding state to the light-transmitting state without feeling. After use, the user can move the human eye away from the lens barrel of the VR device close to the human eye to release the axial thrust applied to the lens barrel close to the human eye. At this time, the elastic element 16 automatically shrinks and drives the first sliding member 121 times. to the start of rail 111. In this case, as the user finishes using the VR device, the VR device switches from the light-transmitting state to the light-shielding state without any need for additional operations by the user, which is very convenient and greatly improves the user experience.

It should be understood that, in the above embodiments, the starting end or the ending end of the guide rail 111 is relative to the direction of the human eye side or the object side. In some cases, the outer barrel 11 is applied near the object side, and in other cases, the outer barrel 11 is applied near the user side. In the above two different application modes, the starting end and the end of the guide rail 111 correspond to different positions, which will not be described here.

Optionally, the following part will introduce the VR device provided in this embodiment by taking the outer lens barrel 11 applied close to the object side and the inner lens barrel 12 used close to the user side as an example.

Optionally, on the basis of the structures described in the foregoing embodiments, the present invention further provides a VR device as shown in FIG. 4 . When the outer lens barrel 11 is applied close to the object side and the inner lens barrel 12 is applied close to the user side, as shown in Figure 4, in addition to the structures described in the previous embodiments, the VR device also includes the The ball bearing 17 and the second sliding member 18 . Wherein, the ball bearing 17 is arranged on the end face of the inner lens barrel 12 close to the human eye, and the second sliding member 18 is fixed on the ball bearing 17 . When the second sliding member 18 transmits pressure to the ball bearing 17 , it can drive the inner lens barrel 12 to slide along the guide rail 111 .

When using the VR device, the user can stick his eyes on the second sliding member 18 and apply an axial thrust to the ball bearing 17 through the second sliding member 18 . With the action of the user, the first sliding member 121 slides from the starting end to the end of the guide rail 111 , and the VR device switches from the light-shielding state to the light-transmitting state without feeling. After use, the user can keep eyes away from the second sliding member 18 to release the axial thrust applied to the ball bearing 17. At this time, the elastic element 16 automatically shrinks to drive the first sliding member 121 back to the starting end of the guide rail 111. In this case, as the user finishes using the VR device, the VR device automatically switches from the light-transmitting state to the light-shielding state, which does not require additional operations by the user, which is very convenient and greatly improves the user experience.

The above embodiments corresponding to FIGS. 2 to 4 describe that when the guide rail 111 extending in the non-axial direction is provided on the cylinder body 110 of the outer lens barrel 11, the guide rail 111 can be provided in the non-circumferential direction of the cylinder body 110. Choose an implementation. In addition to the above embodiments, as shown in FIG. 5 , the guide rail 111 can also be provided in the circumferential direction of the cylinder body 11 . Wherein, the length of the guide rail 111 is 1/4 of the circumference of the cylinder, and when the first sliding member 121 rotates from the starting end of the guide rail 111 to the end, it just rotates a quarter of a circle angle (360°), that is, 90°, so that The angle between the polarization directions of the first polarizing film 13 and the second polarizing film 15 is adjusted within 0-90°.

In this embodiment, the user can apply a rotational force on the inner lens barrel 12 or the outer lens barrel 11, so that the first sliding member 121 slides around the circumferential direction of the cylinder body 110, so as to realize the inner lens barrel 12 and the outer lens barrel 12. The relative rotation of the barrel 11.

In practice, in order to facilitate the good rotation of the inner lens barrel 12 inside the outer lens barrel 11, the outer lens barrel 11 and the inner lens barrel 12 can be designed as cylindrical barrels. At this time, the circumferential direction of the cylinder is the circumferential direction of the cylinder, and the circumferential length of the cylinder is the circumferential length corresponding to the cross section of the cylinder, which will not be described in detail.

Optionally, in the above-mentioned embodiment corresponding to Fig. 1-Fig. 5, in addition to the structure shown in each figure, the VR device provided by the present invention also includes a device front case 61 as shown in Fig. 6a and a device front case 61 snap-fit device rear case 62 . Wherein, the front case 61 of the device includes the lens frame 19 . Wherein, the lens frame 19 is provided with a through hole 191 , and the outer lens barrel 11 is installed in the through hole 191 . Wherein, the lens frame 19 is used for fixing the lens barrel, so that the lens can be conveniently used with the display device.

In some embodiments, as shown in FIG. 6b, when the outer lens barrel 11 and the inner lens barrel 12 are realized through the first sliding member 121, the guide rail 111, the positioning member 112 and the elastic element 16 shown in FIG. 3 or FIG. When slidingly connected, the top of the positioning member 112 can be in contact with the inner wall of the through hole 191, and then the elastic element 16 is clamped between the inner wall of the through hole 191 and the outer wall of the outer lens barrel 11, so as to prevent the elastic element 16 from being impacted by external force or bumping. In case of falling, the stability of the VR device function has been enhanced.

Optionally, as shown in FIG. 6 a , the VR device provided in this embodiment further includes a left headband 63 and a right headband 64 . The left headband 63 and the right headband 64 can be respectively arranged on both sides of the rear shell 61 of the equipment, and can also be arranged on both sides of the front shell 61 of the equipment; It is set on both sides of the rear case 62 of the device for illustration, but it is not limited to this in fact.

Wherein, the left headband 63 and the right headband 64 can be elastic structures, rubber bands or elastic bands; they can also be rigid structures with clutches or telescopic structures, such as plastic straps with a strap elastic adjustment mechanism. The user can wear the VR device on the head through the left headband 63 and the right headband 64 , and can adjust the wearing comfort by adjusting the left headband 63 and the right headband 64 .

When the user wears the VR device, the front shell 61 of the device is close to the user's face, and the user can watch the virtual image displayed on the display screen through the lens. In an optional implementation, when the VR device is in the structure shown in FIGS. 2-4 , the front shell 61 of the device is in close contact with the user's face so that the surroundings of the user's eyes are in direct or indirect contact with the inner lens barrel 12 . Under the traction of the headband 63 and the right headband 64, the user's eyes can apply an axial thrust to the inner lens barrel 12, under the action of the thrust, the first sliding member 121 slides from the starting end of the guide rail 111 At the end, the VR device switches from the light-shielding state to the light-transmitting state. In such an embodiment, as the user wears the VR display device through the left headband 63 and the right headband 64, the VR device can realize the non-inductive switching between the light-shielding state and the light-transmitting state without additional operation, greatly improving the user experience.

When the VR device has the structure shown in FIG. 2 , when the user finishes using the VR device, the left headband 63 and the right headband 64 can be removed from the head, and the first sliding member can be rotated by rotating the inner lens barrel 12 . 121 gets back to the initial end of guide rail 111.

When the VR device has the structure shown in FIG. 3 or FIG. 4 , when the user finishes using the VR device, the left headband 63 and the right headband 64 can be removed from the head. At this point, the user releases the axial thrust applied to the second sliding member 18 , and the elastic element 16 shrinks automatically, driving the first sliding member 121 back to the starting end of the guide rail 111 . In this case, as the user finishes using the VR device, the VR device automatically switches from the light-transmitting state to the light-shielding state, which does not require additional operations by the user, which is very convenient and greatly improves the user experience.

It should be understood that, in addition to the optional implementations described in the above embodiments, in a mechanical relative rotation structure, the guide rail extending along the non-axial direction can also be provided on the cylinder body of the inner lens barrel. At this time, the outer lens The inner wall of the barrel is fixed with a first sliding part adapted to the guide rail, the first sliding part is passed through the guide rail and is slidably connected with the guide rail. This implementation mode is essentially the same as the technical solutions of the above-mentioned embodiments of the present invention, and can be modified or replaced with reference to the above-mentioned embodiments, and will not be repeated here.

The above embodiments describe an optional implementation in which the inner lens barrel 12 and the outer lens barrel 11 can achieve mechanical relative rotation through guide rails and sliding parts. In addition to the implementation described in the above examples, in another optional implementation , the outer lens barrel 11 and the inner lens barrel 12 realize relative rotation through a gear assembly.

As shown in FIG. 7 , in this embodiment, the VR device further includes: a device front case 71 and a device rear case 72 buckled with the device front case 71 . Wherein, the front case 71 of the equipment includes a lens frame 20, and a through hole is provided on the lens frame 20, and the outer lens barrel 11 is sleeved in the through hole; A second gear assembly 113 engaged with the first gear assembly 201 is fixed on the barrel wall.

Among them, considering the aesthetic effect and effectively preventing the user from being scratched by the gear assembly when observing images through the VR device, in this embodiment, the second gear assembly 113 can be arranged on the end of the outer lens barrel 11 away from the human eye side (near the object side) end).

When the VR device is in use, the outer lens barrel 11 can be driven to rotate by controlling the first gear assembly 201 to ensure that the polarization directions of the first polarizing film 13 and the second polarizing film 15 are the same; when the VR device is switched from the use state to When not in use, the outer lens barrel 11 can be driven to rotate 45°, 60°, 90° or any angle in 0-90° (excluding 0°) by controlling the first gear assembly 113, so as to ensure that the first polarized light The polarization directions of the film 13 and the second polarizing film 15 are different.

Optionally, a manner of driving the outer lens barrel 11 to rotate by controlling the first gear assembly 201 is a manual manner. In this manner, in order to facilitate the user to control the first gear assembly 113 , a knob 114 may be provided on the lens frame 20 in this embodiment. As shown in FIG. 8 , on the lens frame 20, another through hole can be opened at a position corresponding to the first gear assembly 201, and the knob 114 can pass through the through hole and be connected to the first gear assembly 201, so that the knob 114 faces the direction of the user, Easy for users to operate. When the user rotates the knob 114, the first gear assembly 201 rotates accordingly.

Optionally, another way of driving the outer lens barrel 11 to rotate by controlling the first gear assembly 113 is an automatic way, and this kind of automatic way can adopt the structure shown in FIG. 9 . As shown in Figure 9, a motor 202, a sensor 203, and a control unit 204 can be provided on the VR device; wherein, the first gear assembly 201 is fixed on the motor 202 and can rotate with the rotation of the motor 202; the sensor 203 is used to detect Whether there is a user touching or approaching; the control unit 204 is electrically connected with the sensor 203 and the motor 202 , and is used to control the motor 202 to drive the first gear assembly 201 to rotate according to the detection result of the sensor 203 . For example, the sensor 203 can detect in real time whether there is a signal of user contact or approach, and send the detected signal to the control unit 204 in real time. If the control unit 204 determines that a user is approaching or touching the VR device according to the received signal, it may be considered that the VR device needs to enter the use state. At this time, a control signal can be sent to control the first gear assembly 201 to rotate by a corresponding angle, so that the polarization directions of the first polarizing film 13 and the second polarizing film 15 are the same. If the control unit 204 determines according to the received signal that the user who was approaching or touching the VR device leaves, it can be considered that when the VR device is switched from the use state to the non-use state, a control signal can be sent to control the first gear assembly 201 to rotate by a corresponding angle , so that the polarization directions of the first polarizing film 13 and the second polarizing film 15 remain different.

Optionally, the sensor 203 and the control unit 204 may be installed on the device front case 71 , the device rear case 72 or the lens barrel frame 20 , which is not limited in this embodiment. Optionally, in order to make the human body sensor 203 have higher detection accuracy, the human body sensor 203 can be set at a position where the user can contact with the surroundings of the user's eyes when the user uses the VR device, for example, it can be set at the inner lens barrel 12 on the end face near the user's eyes, or on the lens frame 20 near the user's forehead.

Wherein, in order to reduce the size and weight of the VR device, a small stepping motor can be selected as the motor 202 , and a micro-control chip can be used as the control unit 204 . Wherein, the sensor 203 may be an infrared sensor, a capacitive touch sensor, an image collector, or an optical sensor, etc., which is not limited in this embodiment.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A VR device, characterized in that, comprising: Relatively rotatable outer lens barrel, inner lens barrel and lens mounted on the inner lens barrel and/or the outer lens barrel; One of the inner lens barrel and the outer lens barrel is equipped with a first polarizing film; the other is equipped with a second polarizing film; Wherein, when the inner lens barrel and the outer lens barrel rotate relatively, the polarization directions of the first polarizing film and the second polarizing film remain the same or different. 2. The VR device according to claim 1, wherein a guide rail extending along a non-axial direction is provided on the body of the outer lens barrel; Adapted first sliding piece; the first sliding piece is passed through the guide rail and is slidably connected with the guide rail. 3. The VR device according to claim 2, wherein the guide rail is set in the non-circumferential direction of the cylinder; wherein, the projected length of the guide rail in the circumferential direction of the cylinder is is a quarter of the circumference of the cylinder. 4. The VR device according to claim 3, wherein a positioning piece is provided on the cylinder at a position close to the end of the guide rail close to the human eye side, and the positioning piece is connected to the first slide The components are connected by an elastic element, and when the lens is not in use, the elastic element is in a contracted state. 5. The VR device according to claim 3, wherein a ball bearing is provided on the end surface of the inner lens barrel close to the human eye, and a second sliding member is fixed on the ball bearing, and the second When the sliding member transmits pressure to the ball bearing, it can drive the inner lens barrel to slide along the guide rail. 6 . The VR device according to claim 2 , wherein the guide rail is set in the circumferential direction of the cylinder, and the length of the guide rail is a quarter of the circumference of the cylinder. 7 . 7. The VR device according to any one of claims 1-6, further comprising: a device front case and a device rear case buckled with the device front case; Wherein, the front case of the device includes a lens frame provided with a through hole, and the outer lens barrel and/or the inner lens barrel are installed in the through hole. 8 . The VR device according to claim 7 , further comprising: a left headband and a right headband respectively arranged on both sides of the rear case of the device or both sides of the front case of the device. 9. The VR device according to claim 1, further comprising: a front case of the device and a rear case of the device buckled with the front case of the device; Wherein, the front shell of the device includes a lens frame provided with a through hole, and the outer lens barrel or the inner lens barrel is installed in the through hole; A first gear assembly is fixed on the lens frame, and a second gear assembly engaged with the first gear assembly is provided on the outer tube wall of the outer lens barrel. 10. The VR device according to claim 9, further comprising: a motor, a sensor and a control unit; The first gear assembly is fixed on the motor; the control unit is electrically connected to the sensor and the motor, and is used to control the motor to drive the first gear assembly to rotate according to the detection result of the sensor .