VR module and VR equipment

Abstract

The utility model provides a VR module and VR equipment, and the VR module comprises a lens module which comprises a lens cone and a front cover, the front cover is installed at the front end of the lens cone, and one side, far away from the lens cone, of the front cover is provided with an installation groove; the liquid crystal lens module is mounted in the mounting groove of the front cover; the light source part and the eyeball tracking module are mounted on the peripheral side of the liquid crystal lens module; wherein the light source part is used for emitting light rays to human eyes, the eyeball tracking module is used for receiving the light rays reflected by the human eyes, and the liquid crystal lens module can be electrified to change the focal length according to information collected by the eyeball tracking module. The eyeball tracking module can analyze the position of human eyes in real time so as to adjust the zoom value of the liquid crystal lens module and ensure that a user can obtain a clear VR picture, and the front cover of the lens module is provided with the mounting groove for accommodating the liquid crystal lens module, so that a mounting rack of the liquid crystal lens module does not need to be additionally arranged, the volume of the VR module is reduced, and the user experience is improved. And the design requirements of miniaturization and light weight are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to virtual reality equipment technical field, specifically to a VR module and VR equipment. BACKGROUND

[0002] VR (virtual reality) equipment is a kind of virtual reality head-mounted display device, it creates a virtual information environment on multidimensional information space, can make user have immersive feeling of being in the thick of it.Currently, in order to ensure that different users can get better experience, liquid crystal lens is added to zoom, ensure that different users can always pay attention to clear image.But currently liquid crystal lens zoom mainly through the help of external computer input zoom value zoom, cannot change in real time according to personal actual myopia degree or eyeball rotation, cannot satisfy user better experience.And the existing liquid crystal lens is installed in VR equipment and needs to provide mounting bracket, resulting in the volume of VR equipment is large. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a kind of VR module and VR equipment, can improve the experience of user and reduce the volume of VR equipment.

[0004] To achieve the above object, on the one hand, the utility model provides a kind of VR module, including: lens module, including lens barrel and front cover, the front cover is installed in the front end of the lens barrel, the side of the front cover away from the lens barrel is equipped with installation groove;Liquid crystal lens module is installed in the installation groove of the front cover;Light source and eyeball tracking module are all installed in the circumferential side of the liquid crystal lens module;Wherein, the light source is used to emit light to human eye, the eyeball tracking module is used to receive the light reflected back by human eye, the liquid crystal lens module can change focal length according to the information collected by the eyeball tracking module.

[0005] Further preferably, the VR module further includes a screen assembly, the screen assembly is installed at the rear end of the lens barrel and is opposite to the lens located in the lens barrel.

[0006] Further preferably, the VR module further includes a main board, a first circuit board, a second circuit board, a liquid crystal lens driving board and an eyeball tracking driving board, the main board is installed at the rear of the screen assembly, the liquid crystal lens driving board and the eyeball tracking driving board are installed on the main board, the liquid crystal lens driving board is electrically connected with the liquid crystal lens module through the first circuit board, and the eyeball tracking driving board is electrically connected with the eyeball tracking module through the second circuit board.

[0007] Further preferably, the front cover is further provided with a relief hole, and the first circuit board partially passes through the relief hole.

[0008] Further preferably, the front cover and the lens barrel are connected by threads.

[0009] Further preferably, the eye tracking module comprises a ring-shaped mounting plate and an eye tracking lens, the ring-shaped mounting plate is bonded to the liquid crystal lens module by glue, and the eye tracking lens is mounted on the ring-shaped mounting plate.

[0010] Further preferably, the light source comprises a plurality of light sources, and the plurality of light sources are uniformly distributed on the ring-shaped mounting plate.

[0011] Further preferably, the light emitted by the light source is infrared light.

[0012] Further preferably, the lens barrel and the front cover jointly form a cutting surface at the same position.

[0013] In another aspect, the utility model also provides a VR device, including shell and above-mentioned VR module, VR module installs on the shell.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) the eye tracking module is added in the VR module to analyze the position of the human eye in real time, and then the zoom value of the liquid crystal lens module is adjusted, so that the focal length of different human eyes or different human eye positions is adjusted in real time, and the user can obtain clear VR pictures, and the user experience is improved.

[0016] (2) the mounting groove accommodating the liquid crystal lens module is arranged on the front cover of the lens module, so that the liquid crystal lens module can be quickly aligned and assembled, the mounting frame of the liquid crystal lens module does not need to be separately increased, the volume of the VR module is reduced, and the miniaturization and light weight design requirements are met.

[0017] (3) the eye tracking module is directly arranged on the liquid crystal lens module by the bonding method of glue, the gap between the eye tracking module and the liquid crystal lens module is reduced, the position of the human eye can be accurately detected by the eye tracking module, and then it is ensured that the zoom value of the liquid crystal lens module meets the requirement that the human eye can clearly obtain the VR picture.

[0018] (4) the plurality of light sources are directly and uniformly distributed on the ring-shaped mounting plate of the eye tracking module, so that the light irradiated to the human eye is uniform, and the position of the human eye can be clearly measured by the eye tracking lens. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0020] Figure 1A structure schematic diagram of the VR module provided by the utility model is provided.

[0021] Figure 2 For Figure 1 A sectional view along line A-A;

[0022] Figure 3 A structure schematic diagram of the lens module provided by the utility model is provided.

[0023] Figure 4 An assembly explosion view of the liquid crystal lens module, light source piece and eyeball tracking module provided by the utility model is provided.

[0024] Figure 5 A structure schematic diagram of the VR device provided by the utility model is provided.

[0025] The following detailed description will further illustrate the utility model in combination with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] In order to better understand the utility model, each aspect of the utility model will be described in more detail with reference to the drawings. It should be understood that these detailed descriptions are only descriptions of embodiments of the utility model, and do not limit the scope of the utility model in any way. Throughout the description, identical reference numerals refer to identical elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0027] Those skilled in the art should understand that in the disclosure of the utility model, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as limiting the utility model.

[0028] It should also be understood that the words "comprise", "comprising", "have", "having", "contain" and / or "containing", when used in this specification, mean that the stated features, elements and / or components are present, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of" appear after a list of listed features, they modify the entire list of listed features, not individual elements in the list. In addition, when describing embodiments of the utility model, the use of "may" means "one or more embodiments of the utility model". And the word "exemplary" is intended to refer to an example or illustration.

[0029] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] In order to facilitate understanding of the scheme disclosed in the present application, the following will first explain the eyetracking special words. Eyetracking refers to tracking the movement of the eyeball by measuring the position of the fixation point of the eyeball or the movement of the eyeball relative to the head. To be precise, it is through image processing technology of instrument equipment, positioning the through hole position, obtaining coordinates, and through a certain algorithm, calculating the point of eyeglass fixation or gaze. There are many methods for eyetracking at present, such as commonly used: a light beam (for example, infrared light) and a camera (also called eyetracking module) are aimed at the eyeball of the subject, the direction of the subject's eyeball fixation is inferred through light and back-end analysis, and the camera records the process of interaction.

[0032] On the one hand, as Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a kind of VR module, comprising: lens module 10, liquid lens module 20, light source piece 30 and eyeball tracking module 40, light source piece 30 is used to emit light to human eye, eyeball tracking module 40 is used to receive the light reflected from human eye, and the energization size of liquid lens module 20 is changed according to light information, to change the focal length of liquid lens module 20 in turn, finally change the trend of imaging light that successively passes through lens module 10 and liquid lens module 20, the light image definition that human eye sees is changed.Wherein lens module 10 includes lens barrel 110 and front cover 120, front cover 120 is installed to the front end of lens barrel 110, and installation groove 121 is set up on the side of front cover 120 away from lens barrel 110, lens barrel 110 is provided with lens 130 for projection inside, i.e. front cover 120 is set in the front end of lens 130, and front cover 120 is set to human eye.Wherein, liquid lens module 20 is installed in the installation groove 121 of front cover 120.Light source piece 30 and eyeball tracking module 40 are all installed to the circumferential side of liquid lens module 20, i.e. light source piece 30 and eyeball tracking module 40 are set in the four sides of liquid lens module 20, ensure that the light path of liquid lens module 20 is not blocked.It can be understood that light source piece 30 is used to emit light to human eye, and human eye is received after light reflection by eyeball tracking module 40, eyeball tracking module 40 carries out analysis to the human eye position information of light, and finally by liquid lens module 20 according to the information collected by eyeball tracking module 40, the focal length of liquid lens module 20 is changed by energization, confirm that user can see clear VR picture.In VR module, the position of human eye can be analyzed in real time by adding eyeball tracking module 40, to adjust the zoom value of liquid lens module 20, reach the focal length of real-time adjustment different human eye or different human eye position, ensure that user can obtain clear VR picture, improve the experience of user.

[0033] Wherein, as Figure 2 As shown, VR module further includes screen assembly 50, screen assembly 50 is installed to the rear end of lens barrel 110 and is opposite to lens 130 located in lens barrel 110, and screen assembly 50 is used to generate image and project out through lens 130 in lens barrel 110.

[0034] In an embodiment, again referring to Figure 1 And Figure 2The VR module further includes a mainboard 61, a first circuit board 62, a second circuit board 63, a liquid crystal lens driving board 64, and an eyeball tracking driving board 65. The mainboard 61 is installed at the back of the screen assembly 50. The liquid crystal lens driving board 64 and the eyeball tracking driving board 65 are installed on the mainboard 61. The liquid crystal lens driving board 64 is electrically connected to the liquid crystal lens module 20 through the first circuit board 62. The eyeball tracking driving board 65 is electrically connected to the eyeball tracking module 40 through the second circuit board 63. The liquid crystal lens module 20 is controlled by the liquid crystal lens driving board 64. The eyeball tracking module 40 is controlled by the eyeball tracking driving board 65. The reaction capability of the liquid crystal lens module 20 and the eyeball tracking module 40 is improved.

[0035] In an embodiment, referring back to Figure 3 The front cover 120 is further provided with a relief hole 122. The first circuit board 62 partially penetrates the relief hole 122. The installation position of the first circuit board 62 is limited. The installation of the first circuit board 62 does not affect the installation of other structures. The convenience of the installation of the first circuit board 62 is improved.

[0036] In an embodiment, the front cover 120 and the lens barrel 110 are connected by threads. That is, the front cover 120 and the lens barrel 110 are detachably connected. Different types of lens modules 10 can be replaced. The liquid crystal lens module 20 can be assembled with the front cover 120 first. Then, the lens module 10 is assembled with the liquid crystal lens module 20.

[0037] In an embodiment, as shown in Figure 4 The eyeball tracking module 40 includes an annular mounting plate 410 and an eyeball tracking lens 420. The annular mounting plate 410 is bonded to the liquid crystal lens module 20 by glue 430. The eyeball tracking lens 420 is installed on the annular mounting plate 410. The eyeball tracking module 40 is directly bonded to the liquid crystal lens module 20 by the glue 430. The gap between the eyeball tracking module 40 and the liquid crystal lens module 20 is reduced. The position of the human eye can be accurately detected by the eyeball tracking module 40. The zoom value of the liquid crystal lens module 20 can meet the requirement that the human eye can clearly obtain a VR image. The eyeball tracking module 40 and the liquid crystal lens module 20 are assembled by the glue 430.

[0038] Preferably, the light source 30 includes a plurality of light sources 30. The plurality of light sources 30 are uniformly distributed on the annular mounting plate 410. The plurality of light sources 30 are directly and uniformly distributed on the annular mounting plate 410 of the eyeball tracking module 40. The light irradiated to the human eye is uniform. The position of the human eye can be clearly measured by the eyeball tracking lens 420. The light emitted by the light source 30 is infrared light. The light source 30 using infrared light avoids interference to the human eye and affects the user experience.

[0039] In an embodiment, as shown in Figure 3As shown, the lens barrel 110 and the front cover 120 jointly form the cutting surface 70 at the same position. It can be understood that the lens barrel 110 and the front cover 120 at the same position means that after the lens barrel 110 and the front cover 120 are assembled into one body, a cutting surface 70 is opened at the side of the assembly along the optical axis direction of the lens barrel 110, so that the VR module has a avoiding structure, and it is convenient for the user to wear.

[0040] On the other hand, as Figure 5 As shown, the utility model also provides a VR device, including casing 80 and above-mentioned VR module, VR module installs on casing 80. Preferably, the VR device includes two parallelly arranged VR modules, and the cutting surface 70 on the lens barrel 110 and the front cover 120 of VR module is relatively arranged, provides an avoiding space for the nose of user, and it is convenient for the user to wear the VR device.

[0041] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the patent scope of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of variations and improvements can be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be according to the appended claims.

Claims

1. A VR module, characterized by The VR module comprises a lens module, a liquid crystal lens module, a light source and an eyeball tracking module. The VR module further comprises a screen assembly, a main board, a first circuit board, a second circuit board, a liquid crystal lens driving board and an eyeball tracking driving board. The main board is installed at the back of the screen assembly. The liquid crystal lens driving board and the eyeball tracking driving board are installed on the main board. The liquid crystal lens driving board is electrically connected with the liquid crystal lens module through the first circuit board.

2. The VR module of claim 1, wherein, The eyeball tracking driving board is electrically connected with the eyeball tracking module through the second circuit board.

3. The VR module of claim 2, wherein, The front cover is threadedly connected with the lens barrel.

4. The VR module of claim 3, wherein, The eyeball tracking module comprises a ring-shaped mounting plate and an eyeball tracking lens.

5. The VR module of claim 4, wherein, The ring-shaped mounting plate is bonded to the liquid crystal lens module by glue.

6. The VR module of claim 1, wherein, The light source comprises a plurality of light sources which are uniformly distributed on the ring-shaped mounting plate.

7. The VR module of claim 6, wherein, The light emitted by the light source is infrared light.

8. The VR module of claim 7, wherein, The lens barrel and the front cover jointly form a cutting surface at the same position.

9. The VR module of claim 1, wherein, The VR module is installed on the shell.

10. A VR device, comprising: ​

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