HK1237882A - Virtual reality head-mounted device - Google Patents

Description

Virtual reality head-mounted device

Technical Field

The application relates to the technical field of virtual reality, in particular to a virtual reality head-mounted device.

Background

VR (Virtual Reality) technology is a technology for generating an interactive three-dimensional interactive environment on a computer by comprehensively using a computer graphics system and various control interfaces, and providing a user with an immersion feeling. In the related art, a user may wear a virtual reality headset, such as VR glasses, VR helmets, or the like, to obtain a corresponding virtual reality experience.

Due to the particularity of the VR scene, especially after the user wears the VR device, the residual space inside the VR device is very limited and the brightness is very low, so that the eye images of the user are difficult to accurately acquire, and the aims of corresponding identity recognition, eyeball tracking and the like cannot be smoothly achieved.

Disclosure of Invention

In view of this, the present application provides a virtual reality head-mounted device, which can perform infrared light supplement on the eyes of a user to improve the definition of the eye image of the user collected by a camera and the accuracy of the physiological characteristic information of the eye image.

In order to achieve the above purpose, the present application provides the following technical solutions:

according to a first aspect of the application, a virtual reality headset is proposed, comprising:

an apparatus body in which a convex lens is fitted;

the infrared light source is assembled in the equipment body, is distributed on the periphery of at least one convex lens and is used for performing infrared light supplement on the eyes of the user corresponding to the at least one convex lens;

the camera is assembled in the equipment body, a lens of the camera faces towards the eyes of the user corresponding to the at least one convex lens, and infrared image acquisition is carried out on physiological characteristic information of the eyes of the user.

Optionally, two convex lenses are assembled in the device body, and at least one infrared light source and at least one camera are distributed around any preset convex lens.

Optionally, at least one infrared light source and at least one camera are distributed around each convex lens in the device body.

Optionally, when any convex lens corresponds to a plurality of infrared light sources, the plurality of infrared light sources are uniformly distributed around the any convex lens.

Optionally, the installation position of the infrared light source is in the coverage area of the circumscribed rectangle of the corresponding convex lens.

Optionally, the cameras are located on a side of the respective convex lens near the user.

Optionally, the cameras are located below the respective convex lenses.

Optionally, the camera is mounted in a position abutting against the corresponding convex lens.

Optionally, the method further includes:

the equipment interface is assembled on the equipment body, can be electrically connected with electronic equipment installed in the equipment body, and is used for playing virtual reality display contents;

the camera and the infrared light source are connected to the equipment interface through a data line; the camera and the infrared light source can execute switch state switching operation responding to the switch control instruction when receiving the switch control instruction transmitted by the electronic equipment through the equipment interface and the data line, and the camera also transmits the collected infrared image to the electronic equipment through the equipment interface and the data line.

Optionally, the camera is an infrared camera or a red, green, blue-infrared camera.

It can be seen by above technical scheme, this application is through setting up infrared light source in this internal setting of equipment to set up this infrared light source around convex lens, can carry out infrared light filling to the user's eye that this convex lens corresponds, thereby when gathering the infrared image of user's eye through the camera, can reduce the requirement to other conditions such as the installation angle of camera, spacing distance, help rationally assembling, optimizing space to the part among the virtual reality head-mounted apparatus and occupy.

Drawings

Fig. 1 is a side cross-sectional view of a VR headset provided in an exemplary embodiment of the present application.

Fig. 2 is a schematic structural diagram of a VR headset according to an exemplary embodiment of the present application in a wearer direction.

Fig. 3 is a schematic diagram of a positional relationship between an infrared light source and a convex lens according to an exemplary embodiment of the present application.

Fig. 4 is a side cross-sectional view of another VR headset provided in an exemplary embodiment of the present application.

Detailed Description

For further explanation of the present application, the following examples are provided below, taking VR helmets as examples, to introduce the relevant structure of the virtual reality headset of the present application:

fig. 1 is a side cross-sectional view of a VR headset provided in an exemplary embodiment of the present application. As shown in fig. 1, in a device body 1 of a VR headset, a convex lens 2 and a VR player assembly 3 are assembled. Wherein the convex lens 2 is located between the user (fig. 1 shows the eyes 4 of the user) and the VR playing component 3 in the device body 1, so that VR display content played by the VR playing component 3 can penetrate through the convex lens 2 and propagate to the eyes 4 of the user based on the form of visible light S1, and the visible light S1 is received by the eyes 4 of the user and the VR display content can be viewed.

In order to perform functions such as eye tracking and iris recognition on a user wearing a VR helmet, it is necessary to acquire an infrared image of the eye 4 of the user. However, since the VR helmet needs to provide an immersive VR scene and experience for the user, it is required to avoid the incidence of external light as much as possible, which causes poor light conditions inside the device body 1 after the user wears the VR helmet, and it is difficult to satisfy conditions for image capture of eyes.

Therefore, in the VR headset of the present application, the VR headset further includes an infrared light source 5 installed in the device body 1, where the infrared light source 5 is distributed on the periphery of at least one convex lens 2, and performs infrared supplementary lighting on the eye 4 of the user corresponding to the at least one convex lens 2 (the infrared light source 5 emits infrared light such as R1 and R2 to the eye 4). As shown in fig. 2, two convex lenses 2 are generally provided in the VR headset to correspond to both eyes of the user; the infrared light sources 5 may be distributed on the periphery of a single convex lens 2, for example, on the periphery of the right convex lens 22 in fig. 2, so as to supplement infrared light to the right eye of the user, and the infrared light sources 5 are not distributed on the periphery of the left convex lens 21.

Then, when the camera 6 assembled in the device body 1 in the VR headset is used to collect images of physiological characteristic information of the eyes 4 of the user, the infrared light source 5 is used to supplement infrared light to the eyes 4, so that sufficient infrared light S2 can be reflected by the eyes 4, and after the infrared light S2 is captured by the camera 6, a clear infrared image is obtained, and accordingly, physiological characteristic information of the eyes 4, such as eyeball positions and iris characteristics, can be accurately extracted, so as to further realize functions of eyeball tracking, iris recognition and the like. The camera 6 may be an IR (Infrared Radiation) camera, or may also be an RGB (Red-Green-Blue ) -IR integrated camera, which is not limited in this application.

In the above embodiment, in order to avoid blocking the VR display content played by the VR playing component 3, i.e. blocking the transmission of the visible light S1, the infrared light source 5 and the camera 6 must be far away from the visible range of the convex lens 2 relative to the eye 4 of the user (for example, the visible range can be marked by an upper boundary T1 and a lower boundary T2 shown in fig. 1), so that the infrared light source 5 is mounted at the periphery of the convex lens 2, and the camera 6 is usually mounted at the top or bottom of the device body 1, such as at the bottom position of the device body 1 in fig. 1, and at the side (i.e. the left side shown in fig. 1) of the convex lens 2 close to the user.

Further, when the camera 6 collects the infrared light S2 emitted from the eye 4, since the camera 6 must be far away from the above-mentioned visual range, the user can keep the eye 4 in the direct-view state shown in fig. 1 during using the VR helmet, i.e. the infrared light S2 propagates in the horizontal direction, so that the camera 6 must form an angle α with the infrared light S2. Then, in order to avoid that the included angle α is too large to cause serious deformation of the acquired image, the camera 6 may be disposed close to (including at least one of the horizontal distance and the vertical distance) the edge of the convex lens 2, i.e., the distance between the camera 6 and the eye 4 (including at least one of the horizontal distance and the vertical distance) is increased as much as possible, so as to reduce the included angle α as much as possible under the same conditions. Optionally, the angle of the camera 6 can be adjusted within a certain range to adapt to the difference of different users when using the same VR headset; during adjustment, the pupil center of the eye 4 of the user can be ensured to be located in the central area of the acquired infrared image as much as possible, so that image deformation or excessive deformation is avoided.

In the above embodiment, the infrared light source 5 is adapted to the mounting position of the camera 6 in the apparatus body 1. For example, as shown in fig. 2, when the infrared light source 5 is distributed on the periphery of the right convex lens 22, the camera 6 is vertically mounted below the right convex lens 22 (or above the right convex lens 22), and horizontally mounted at the center of the right convex lens 22, so as to reduce or eliminate the horizontal angle between the camera 6 and the eyes 4 of the user. In the embodiment shown in fig. 2, the respective infrared light source 5 and camera 6 are only mounted for the right convex lens 22, so as to capture the infrared image of the right eye of the user, but in practice there may be other situations: for example, the infrared image capturing for the left eye of the user may be performed by assembling the infrared light source 5 and the camera 6 for the left convex lens 21 only, or the infrared image capturing for the both eyes of the user may be performed by assembling the infrared light source 5 and the camera 6 for the left convex lens 21 and the right convex lens 22 simultaneously (or selectively turning on the infrared light source 5 and the camera 6 for the one eye to perform the infrared image capturing for the one eye).

Although fig. 2 shows an embodiment in which 4 infrared light sources 5 are distributed around the periphery of the right convex lens 22, this is only for example; in fact, in the VR headset of the present application, one or more infrared light sources 5 may be distributed around the periphery of each convex lens, and the present application does not limit the number of infrared light sources 5. When there are a plurality of infrared light sources 5, for example, 4 infrared light sources 5 are distributed around the right convex lens 22 in fig. 2, the infrared light sources 5 may be distributed as uniformly as possible to fill in the eyes 4 uniformly.

In addition, when the convex lens 2 is fitted in the apparatus body 1, the specification of the apparatus body 1 is related to the space occupation of the convex lens 2. For example, as shown in fig. 3, assuming that the length of the convex lens 2 in the horizontal direction (i.e., the x-axis direction) is L and the length in the vertical direction (i.e., the y-axis direction) is H (when the convex lens 2 has a circular shape, L and H are both equal to the diameter length of the circular shape), the space occupation of the convex lens 2 with respect to the apparatus body 1 is related to the value of L, H, i.e., the length of the apparatus body 1 in the horizontal direction should not be smaller than L and the length in the vertical direction should not be smaller than H. In fact, when the apparatus body 1 is substantially rectangular parallelepiped in shape, the specification requirements of the apparatus body 1 for the convex lens 2 are almost equal to those of the apparatus body 1 for the circumscribed rectangle (as shown in fig. 3, the horizontal width is L and the vertical height is H) of the convex lens 2.

In one case, as shown in fig. 3, when the mounting position of the infrared light source 5 is within the coverage area of the circumscribed rectangle of the convex lens 2, and since the infrared light source 5 needs to avoid blocking the convex lens 2, the infrared light source 5 should not be located within the coverage area of the convex lens 2 (as at point a), but should be located within the shaded area shown in fig. 3 (as at point B). At this moment, the space occupation requirement of the infrared light source 5 on the equipment body 1 is overlapped with the circumscribed rectangle (or the convex lens 2), so that the infrared light source 5 does not have more space occupation requirements on the equipment body 1, thereby being beneficial to controlling or reducing the specifications of the equipment body 1 and the VR helmet thereof and avoiding the VR helmet from being too large and heavy.

In another case, as shown in fig. 3, when the infrared light source 5 is located at point C, the height of the whole of the infrared light source 5 and the convex lens 2 in the vertical direction is increased from H to H1, that is, the space occupation requirement for the apparatus body 1 in the vertical direction is increased from H to H1, so that the VR helmet becomes thicker; similarly, when the infrared light source 5 is located at the point D, the width of the whole of the infrared light source 5 and the convex lens 2 in the horizontal direction is increased from L to L1, that is, the space occupation demand for the apparatus body 1 in the horizontal direction is increased from L to L1, so that the VR helmet becomes wider.

Therefore, the infrared light sources 5 can be fitted within the coverage area of the circumscribed rectangle of the respective convex lenses 2 as much as possible to avoid increasing the space occupation demand on the apparatus body 1, contributing to control of the specifications of the VR headset.

Fig. 4 is a side cross-sectional view of another VR headset provided in an exemplary embodiment of the present application. As shown in fig. 4, the VR helmet may be a split VR headset, and a device interface 7 may be assembled in a device body 1 of the VR helmet, so that the device interface 7 may be electrically connected to an electronic device such as a mobile phone and a tablet installed in the device body 1; the electronic device can realize rendering processing through a processor, a display card chip and the like, display content through a screen component and the like, and is used as a VR playing component 3 in the device body 1.

Further, the camera 6 and the infrared light source 5 in the device body 1 may be connected to the device interface 7 through a data line 8, so that when the electronic device connected to the device interface 7 issues a switch control instruction, the camera 6 and the infrared light source 5 may receive the switch control instruction through the device interface 7 and the data line 8, thereby performing a switching operation of a switch state in response to the switch control instruction. In other words, based on the control of the user on the electronic device or based on the control of an application program running on the electronic device, the electronic device can send a switch control instruction to the camera 6 and the infrared light source 5, control the infrared light source 5 to perform infrared light compensation on the eye 4, and control the camera 6 to perform infrared image acquisition on the eye 4, so that the controllability of the infrared light compensation and the infrared image acquisition is improved.

Wherein, the switch control instruction can be sent to the camera 6 and the infrared light source 5 at the same time; or, the switch control command may also be sent to the camera 6 or the infrared light source 5 separately, for example, the camera 6 is controlled to be turned on separately to collect an infrared image, and the infrared light source 5 is controlled separately to perform infrared light supplement and the like under the condition of insufficient light.

In addition, after the camera 6 finishes infrared image acquisition, if a processing module is arranged in the VR helmet, the acquired infrared image can be transmitted to the processing module for processing; alternatively, the camera 6 may transmit the acquired infrared image to the above-mentioned electronic device through the device interface 7 and the data line 8 to be processed by the electronic device.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. A virtual reality headset, comprising:

an apparatus body in which a convex lens is fitted;

the infrared light source is assembled in the equipment body, is distributed on the periphery of at least one convex lens and is used for performing infrared light supplement on the eyes of the user corresponding to the at least one convex lens;

the camera is assembled in the equipment body, a lens of the camera faces towards the eyes of the user corresponding to the at least one convex lens, and infrared image acquisition is carried out on physiological characteristic information of the eyes of the user.

2. The apparatus according to claim 1, wherein the apparatus body is equipped with two convex lenses, and at least one infrared light source and at least one camera are distributed around any one of the preset convex lenses.

3. The apparatus of claim 1, wherein at least one infrared light source and at least one camera are distributed around each convex lens within the apparatus body.

4. The apparatus of claim 1, wherein when any convex lens corresponds to multiple infrared light sources, the multiple infrared light sources are evenly distributed around the any convex lens.

5. The apparatus of claim 1, wherein the mounting location of the infrared light source is within the footprint of the circumscribed rectangle of the corresponding convex lens.

6. The apparatus of claim 1, wherein the cameras are located on a side of the respective convex lens that is proximate to the user.

7. The apparatus of claim 6, wherein the cameras are located below the respective convex lenses.

8. The apparatus of claim 6, wherein the camera is mounted in a position to abut the corresponding convex lens.

9. The apparatus of claim 1, further comprising:

the equipment interface is assembled on the equipment body, can be electrically connected with electronic equipment installed in the equipment body, and is used for playing virtual reality display contents;

the camera and the infrared light source are connected to the equipment interface through a data line; the camera and the infrared light source can execute switch state switching operation responding to the switch control instruction when receiving the switch control instruction transmitted by the electronic equipment through the equipment interface and the data line, and the camera also transmits the collected infrared image to the electronic equipment through the equipment interface and the data line.

10. The apparatus of claim 1, wherein the camera is an infrared camera or a red, green, blue-infrared camera.