WO2021248570A1 - 头戴设备 - Google Patents

头戴设备 Download PDF

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Publication number
WO2021248570A1
WO2021248570A1 PCT/CN2020/098384 CN2020098384W WO2021248570A1 WO 2021248570 A1 WO2021248570 A1 WO 2021248570A1 CN 2020098384 W CN2020098384 W CN 2020098384W WO 2021248570 A1 WO2021248570 A1 WO 2021248570A1
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WO
WIPO (PCT)
Prior art keywords
light
lens
head
mounted device
window
Prior art date
Application number
PCT/CN2020/098384
Other languages
English (en)
French (fr)
Inventor
王亿新
史柴源
鲁公涛
陶淑林
Original Assignee
歌尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2021248570A1 publication Critical patent/WO2021248570A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention relates to the field of optical imaging technology, in particular to a head-mounted device that can switch between virtual reality and augmented reality.
  • virtual reality technology and augmented reality technology are brand-new technologies, based on their ability to combine virtual and reality to display to users, bringing users a brand-new experience and being loved by users. Therefore, virtual reality and augmented reality are more and more widely used.
  • Virtual reality technology is a computer simulation system that can create and experience a virtual world. It uses a computer to generate a simulation environment to immerse users in the environment. Specifically, it is the real world simulated by computer technology.
  • Augmented reality technology is the technical content that promotes the integration of real world information and virtual world information content. Specifically, after the overlap between the real environment and the virtual object, the technology can exist in the same picture and space at the same time.
  • the structure capable of presenting virtual reality scenes and the structure capable of presenting augmented reality scenes are also different. Therefore, in general, only a single virtual reality scene or an augmented reality scene can be presented on a structure. If the user wants to switch between the virtual reality scene and the augmented reality scene, he needs to take off the virtual reality device and then wear the augmented reality device. If the user switches frequently, he needs to switch between the virtual reality device and the augmented reality device frequently. , It is extremely inconvenient for users to wear.
  • the main purpose of the present invention is to propose a head-mounted device, which aims to solve the problem that the device in the prior art can only present a single virtual reality scene or an augmented display scene. When switching between the virtual reality scene and the augmented reality scene, it needs to be worn. The device brings the technical problem of inconvenience to the user.
  • the present invention provides a head-mounted device, the head-mounted device includes:
  • At least one set of imaging system the imaging system is installed in the installation cavity, the imaging system includes a display unit and an optical assembly, the light emitted by the display unit is directed toward the window after passing through the optical assembly;
  • At least one set of cameras the cameras are arranged on the housing or located in the installation cavity, and the cameras are used to collect environmental information outside the housing;
  • the processor is connected to the display unit and connected to the camera, the processor is used to control the display unit to display images, and is also used to control the camera to turn on or off.
  • a light-transmitting part is provided on the housing, the camera is arranged in the mounting cavity, and the light-transmitting part is located on the light-incident side of the camera, so that the camera can pass through the light-transmitting part.
  • the part collects environmental information outside the housing.
  • the optical assembly includes a first lens group and a second lens group, and the first lens group is located between the display unit and the second lens group;
  • the display unit After the light emitted by the display unit passes through the first lens group, it is directed to the second lens group, and the light emitted through the second lens group is transmitted to the window, wherein the first lens group is used for To adjust the aberration of imaging, the second lens group is used to change the direction of light transmission.
  • the second lens group includes a flat reflective lens, a semi-transmissive and semi-reflective lens, and a curved reflective lens
  • the light emitted from the first lens group is reflected by the flat reflective lens to the semi-transparent and semi-reflective lens
  • the semi-transmissive and semi-reflective lens reflects the emitted light of the flat reflective lens and then reflects to the curved reflective lens
  • the curved reflective lens reflects the reflected light of the semi-transparent and semi-reflective lens and then emits it to all
  • the semi-transmissive and semi-reflective lens transmits light from the curved reflective lens to the window.
  • the first lens group includes a first lens, a second lens, and a third lens that are sequentially arranged in a direction from the display unit to the second lens group;
  • the light incident surface and the light output surface of the first lens are both convex;
  • the light incident surface of the second lens is concave, and the light output surface is convex;
  • the light incident surface of the third lens is convex, and the light output surface is concave.
  • the optical assembly further includes a mounting seat, and the first lens group and the second mirror are assembled and arranged in the mounting seat.
  • the head-mounted device further includes a light-shielding plate and a driving component
  • the light-shielding plate is movably arranged in the mounting cavity and is located on a side of the optical component away from the window
  • the driving component is connected with The light-shielding plate is connected
  • the driving assembly drives the light-shielding plate to move between a first position and the second position, the first position is located on the optical path transmission path of the window, and the second position is connected to The windows are misaligned.
  • the drive assembly includes an adjusting wheel and a transmission gear, the transmission gear is arranged coaxially with the adjusting wheel; a rack is provided on the shading plate, and the rack is connected to the first position and The connecting lines between the second positions are parallel, and the transmission gear is in meshing connection with the rack.
  • the head-mounted device further includes a mounting plate disposed in the mounting cavity, the mounting plate is provided with a light-transmitting hole, and the light-transmitting hole is located on the transmission path of the window
  • the light-shielding plate is movably arranged on the mounting plate, the optical assembly is mounted on the side of the mounting plate facing the window, the light-transmitting hole, the optical assembly and the window are located on the same straight line, the The light-shielding plate is located between the light-transmitting hole and the optical component; the light outside the housing is sequentially transmitted to the window through the light-transmitting portion, the light-transmitting hole and the optical component.
  • the camera is installed on a side of the mounting plate facing away from the window.
  • an imaging system is set on a head-mounted device to realize the presentation of virtual reality scenes by the imaging system.
  • a camera is also set on the head-mounted device to obtain real environment information through the camera, and to realize an augmented reality scene through the real environment information and virtual scenes.
  • the presentation of the virtual reality scene and the augmented reality scene can be realized on one headset. In this way, the user can switch between the two scenes without changing the headset, which improves the convenience of using the headset. .
  • FIG. 1 is a schematic structural diagram of a head-mounted device provided by the present invention from a perspective;
  • FIG. 2 is a schematic structural diagram of the head-mounted device provided by the present invention from another perspective
  • FIG. 3 is a schematic diagram of the structure in the light-transmitting part of the head-mounted device provided by the present invention.
  • FIG. 4 is a schematic diagram of the internal structure of the head-mounted device provided by the present invention.
  • FIG. 5 is a schematic diagram of the optical system structure of the head-mounted device provided by the present invention.
  • Fig. 6 is a schematic structural diagram of an optical component of a head-mounted device provided by the present invention.
  • Fig. 7 is a schematic diagram of the connection structure between the light shielding plate and the driving assembly of the head-mounted device provided by the present invention.
  • Label name Label name 10 case 20 Imaging system 11 Installation cavity twenty one Display unit 12 Transmitting part twenty two Optical components 30 sponge mat 221
  • the first mirror group 40 camera 2211 First lens 50 Circuit board 2212 Second lens 13 Windows 2213 Third lens 60 Shading plate 222 Second lens group 61 rack 2221 Plane reflective lens 70 Drive components 2222 Transflective lens 71 Adjusting wheel 2223 Curved reflective lens 72 Transmission gear 223 Mounting seat 73 Toggle gear 2231 Support frame 80 Mounting plate 2232 Mirror group mounting shell 81 Light hole 2233 Sealing cylinder
  • the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
  • the present invention proposes a head-mounted device, which can not only realize the presentation of virtual reality scenes, but also realize the presentation of enhanced display scenes. Users can switch between virtual reality scenes and augmented reality scenes according to their needs.
  • the head-mounted device includes a housing 10, a processor (not marked in the figure), at least one set of imaging systems 20, and at least one set of cameras 40.
  • the housing 10 is provided with an installation cavity 11, and the housing 10 is provided with at least one window 13 communicating with the installation cavity 11.
  • the housing 10 includes a front panel and a rear panel.
  • the front panel is arranged opposite to the rear panel.
  • the window 13 is arranged on the rear panel.
  • a sponge pad 30 is provided on the back panel, and the sponge pad 30 is arranged in an arc shape.
  • the imaging system 20 is installed in the installation cavity 11, the imaging system 20 includes a display unit 21 and an optical assembly 22, and the light emitted by the display unit 21 is directed toward the window 13 after passing through the optical assembly 22 .
  • the camera 40 is arranged on the housing 10 or arranged in the installation cavity 11 for collecting real environment information outside the housing 10.
  • the camera 40 is arranged on the housing 10, and the camera 40 faces the outside of the housing 10, and when the camera 40 is opened, real-time or timing information about the real environment outside the housing 10 can be collected.
  • the camera 40 may be arranged in the installation cavity 11.
  • a light-transmitting portion 12 is provided on the housing 10, and the light-transmitting portion 12 is located on the light-incident side of the camera 40, In this way, the camera 40 can collect environmental information outside the housing 10 through the light-transmitting part 12.
  • the light-transmitting portion 12 is provided on the front panel of the housing 10, and the camera 40 collects the actual environment information in front of the head-mounted device through the front panel.
  • the front panel of the head-mounted device may also be made of transparent acrylic material, so that the front panel is a transparent panel, and the camera 40 collects real environment information with a larger viewing angle through the transparent panel.
  • the processor is arranged on the circuit board 50, the circuit board 50 is installed in the mounting cavity 11, the processor is connected to the camera 40 and the display unit 21, and the processor displays to the display
  • the unit 21 outputs display data to control the display unit 21 to display image information, and the processor is also used to control the camera 40 to turn on or off. If the user requires the headset to present a virtual reality scene, the processor outputs preset VR virtual reality scene display data, and at the same time controls the camera 40 to turn off, and the display unit 21 displays according to the virtual reality scene display data, After the light emitted by the display unit 21 passes through the optical assembly 22, it is projected into the eyes of a person through the window 13 to form a virtual reality scene.
  • the processor controls the camera 40 to turn on, and the real environment information obtained by the camera 40 in real time is transmitted to the processor, and the processor combines the real environment information with presets.
  • the AR virtual information is combined to form augmented reality scene display data and output to the display unit 21.
  • the display unit 21 displays according to the augmented reality scene display data.
  • the light emitted by the display unit 21 passes through the optical assembly 22 and then passes through the The window 13 is shot into the eyes of a person to form a virtual reality scene. In this way, the switch between the virtual reality scene and the augmented reality scene can be realized on one head-mounted device.
  • the imaging system 20 is set on the head-mounted device, and the imaging system 20 realizes the presentation of virtual reality scenes, and the camera 40 is also set on the head-mounted device, and the real environment information is obtained through the camera 40, which is realized through the real environment information and the virtual scene.
  • the presentation of augmented reality scenes can switch between the virtual reality scene and the augmented reality scene on one headset. In this way, users can switch between the two scenarios without changing the headset, which improves the headset’s performance. Ease of use.
  • the housing 10 in this embodiment is provided with two windows 13 to fit the eyes of the user.
  • the head-mounted device includes two sets of the cameras 40 and two sets of the imaging systems 20, the two sets of cameras 40 are symmetrically arranged on both sides of the housing 10, and a set of imaging systems 20 corresponds to one of the windows 13 .
  • the two imaging systems 20 can perform imaging independently or simultaneously, that is, the imaging systems 20 can be separately controlled by a processor by subcontracting, or can be uniformly controlled by the processor.
  • the two imaging systems 20 perform imaging independently, different scenes can be presented at the left and right ends respectively, which brings different experiences to users and increases the use effect of the head-mounted device.
  • the optical assembly 22 includes a first lens group 221 and a second lens group 222, and the first lens group 221 is located on the display unit 21 and the second lens group. Between; the light emitted by the display unit 21 after the first lens group 221, is directed to the second lens group 222, and the light emitted through the second lens group 222 is transmitted to the window 13.
  • the first lens group 221 is used to adjust the emission direction of the light emitted by the display unit 21 to adjust the aberration of imaging
  • the second lens group 222 is used to change the light transmission direction to make the light It can finally be transmitted to the window 13, and enter the human eye from the window 13.
  • the second mirror group 222 includes a plane reflective lens 2221, a semi-transmissive and semi-reflective lens 2222, and a curved reflective lens 2223.
  • the light emitted from the first mirror group 221 is reflected to the semi-reflective lens 2221 by the plane reflective lens 2221.
  • a transflective lens 2222 the transflective lens 2222 reflects the emitted light of the flat reflective lens 2221 and then reflects it to the curved reflective lens 2223, and the curved reflective lens 2223 opposes the transflective lens
  • the reflected light of 2222 is reflected and then emitted to the semi-transmissive and semi-reflective lens 2222, and the semi-transparent and semi-reflective lens 2222 projects the emitted light of the curved reflective lens 2223 to the window 13.
  • the light incident surface of the plane reflective lens 2221 and the light emitted from the first lens group 221 are arranged at an angle, and the reflective surface of the half mirror 2222 faces the plane reflective lens 2221,
  • the reflective surface of the curved reflective lens 2223 faces the transflective lens 2222.
  • the light incident surface of the plane reflective lens 2221 is a reflective surface, and the light is reflected to the semi-transmissive and semi-reflective lens 2222.
  • the semi-transmissive and semi-reflective lens 2222 is a lens with a polarized reflection film on the light incident surface.
  • the incident direction of the light is the same as that of the polarized reflection film.
  • the polarization direction of the light is different, and the light is reflected to the curved reflective lens 2223.
  • the direction of the light is changed, so that when the light enters the semi-transmissive and semi-reflective lens 2222, the same
  • the polarization direction of the polarizing reflection film is the same, and the light is transmitted to the window 13 through the semi-transmissive and semi-reflective lens 2222, and then is transmitted to the human eye.
  • the second lens group 222 not only has the effect of changing the transmission direction of light, but the curved reflective lens 2223 in the second lens group 222 also has a light-gathering effect, which improves the imaging effect.
  • the first lens group 221 includes a first lens 2211, a second lens 2212, and a third lens 2213 that are sequentially arranged in a direction from the display unit 21 to the second lens group 222;
  • the light incident surface and the light output surface of the first lens 2211 are both convex;
  • the light incident surface of the second lens 2212 is concave, and the light output surface is convex;
  • the light incident surface of the third lens 2213 is a convex surface, and the light output surface is a concave surface.
  • the display unit 21 When the display unit 21 is turned on, light enters the first lens 2211 from the light-incident surface of the first lens 2211, passes through the first lens 2211, and is projected to the second lens 2212. After the second lens 2212 comes out, it is projected onto the third lens 2213, and after entering the third lens 2213, it is transmitted to the plane reflective lens 2221.
  • the second lens group 222 adjusts the projection optics of the light sequentially through three groups of concave-convex lenses, thereby achieving the effect of adjusting the imaging aberration.
  • the optical assembly 22 further includes a mounting seat 223, and the first lens group 221 and the second lens group 222 are installed in the mounting seat 223.
  • the mounting seat 223 includes a support frame 2231, a lens group mounting shell 2232, and a sealing cylinder 2233.
  • the lens group mounting shell 2232 includes a first mounting cavity 11 and a second mounting cavity 11, and the first mounting cavity 11 is connected to the The second installation cavity 11 is connected, the end of the first installation cavity 11 away from the second installation cavity 11 is provided with a light inlet, and the sealing cylinder 2233 is connected to the display unit 21 and the first installation Between the light entrances of the cavity 11, the first lens group 221 is installed in the first installation cavity 11, and the cavity wall of the second installation cavity 11 opposite to the second installation cavity 11 is provided with The first mounting port, the second mounting cavity 11 is adjacent to the first mounting port and is provided with a second mounting port on the cavity wall close to the window 13, and the cavity wall opposite to the second mounting port is provided There is a third installation port, the plane reflective lens 2221 is installed on the first installation port, the semi-transmissive lens 2222 is installed on the second installation port, and the curved reflective lens 2223 is installed on the first installation port. Three installation port.
  • the supporting frame 2231 is arranged on a side far away from the lens group mounting shell 2232
  • the head-mounted device of this embodiment further includes a light shield 60 and a driving assembly 70
  • the light-shielding plate 60 is disposed in the mounting cavity 11 and is used to shield the light from the light-transmitting portion 12 from entering the optical assembly 22 or the window 13.
  • the light entering the window 13 can be adjusted by setting the light-shielding plate 60, so that the camera 40 is not turned on, and the environmental information outside the housing 10 can also be obtained through the light-transmitting hole 8181.
  • the environment information acquired by the light hole 8181 and the virtual environment information sent by the display unit 21 are mixed in the optical assembly 22 to form an augmented reality scene, which realizes the presentation of the augmented reality environment.
  • the shading plate 60 is movably arranged in the mounting cavity 11 and is located on the side of the optical assembly 22 away from the window 13, and the driving assembly 70 is connected to the shading plate 60.
  • the driving assembly 70 drives the shading plate 60 to move between a first position and a second position, the first position being located on the light transmission path between the light transmitting portion 12 and the window 13, specifically , The first position and the projection of the window 13 are superimposed, and the second position is staggered with the window 13.
  • the first position is the projection position between the light-transmitting portion 12 and the window 13, and the light outside the housing 10 can be transmitted to the window 13 through the light-transmitting portion 12, so a
  • the light-shielding plate 60 is between the light-transmitting portion 12 and the window 13, and blocks light entering from the outside.
  • the light-shielding plate 60 can be movably arranged in the installation cavity 11.
  • the light-shielding plate 60 can be driven to move between the light-transmitting portion 12 and the window 13 On the light transmission path between the two, the light entering from outside the housing 10 is blocked, and only the light emitted from the display unit 21 enters the human eye through the optical assembly 22, so as to realize the display of the virtual reality scene.
  • the light-shielding plate 60 can be driven to move to the second position, avoiding the space between the light-transmitting portion 12 and the window 13
  • the light transmission path is such that the light outside the housing 10 enters the optical assembly 22, merges with the light emitted from the display unit 21, and enters the human eye, thereby realizing the display of an augmented reality scene.
  • the drive assembly 70 includes an adjusting wheel 71 and a transmission gear 72, and the transmission gear 72 is arranged coaxially with the adjusting wheel 71; a rack 61 is provided on the shading plate 60, and the rack 61 is parallel to the connecting line between the first position and the second position, and the transmission gear 72 is in meshing connection with the rack 61.
  • the transmission gear 72 rotates with the shaft, and when the transmission gear 72 rotates, the rack 61 is driven to move, and the rack 61 drives the shading plate 60 to move.
  • the shading plate 60 is driven along the first position and the The second position moves.
  • the adjusting wheel 71 may be connected with a motor and driven to rotate by the motor; or the adjusting wheel 71 is partially exposed outside the housing 10 for the user to manually drive the adjusting wheel 71 to rotate.
  • the driving assembly 70 further includes a dial gear 73, and the adjustment wheel 71 is an adjustment gear, the dial gear 73 is meshed and connected with the adjustment gear, and the dial gear 73 is located on the adjustment wheel 71 On the side away from the transmission wheel, the toggle gear 73 is partially exposed outside the housing 10 for the user to manually toggle.
  • the light-shielding plate 60 corresponds to the window 13 one-to-one. If the head-mounted device is provided with two windows 13, then two light-shielding plates 60 are provided.
  • the driving assembly 70 may be provided with a set, for example, the racks 61 on the two light-shielding plates 60 extend oppositely, and the meshing teeth on the two racks 61 are located opposite to each other of the two racks 61.
  • the transmission gear 72 meshes with the two racks 61 at the same time. When the transmission gear 72 rotates, it drives the two racks 61 to move in opposite or opposite directions, so that two windows can be ensured. Simultaneous adjustment of 13 differences.
  • two groups of the driving components 70 may be provided, and each group of the driving components 70 correspondingly drives one of the light-shielding plates 60.
  • the head-mounted device further includes a mounting plate 80, the mounting plate 80 is arranged in the mounting cavity 11, the mounting plate 80 is provided with a light-transmitting hole 8181, the light-transmitting hole 8181 is located in the window 13
  • the transmission path; the shading plate 60 is movably arranged on the mounting plate 80, the optical assembly 22 is mounted on the side of the mounting plate 80 facing the window 13, the light-transmitting hole 8181, the optical assembly 22 and the window 13 are located on the same straight line, and the light-shielding plate 60 is located between the light-transmitting hole 8181 and the optical component 22.
  • the light outside the housing 10 passes through the light transmitting portion 12, the light transmitting hole 8181 and the optical component 22 to be transmitted to the window 13 in sequence.
  • the light-transmitting hole 8181 and the light-transmitting portion 12 are provided to form an optical path, and the environmental information outside the housing 10 can be directly obtained from the light-transmitting hole 8181 and the light-transmitting portion 12, combined with the display unit 21
  • the displayed virtual scene information can present an augmented reality scene in the device.
  • the actual environmental information directly obtained through the light-transmitting hole 8181 has not been processed and is closer to the real environment. With real information.
  • the camera 40 is used to obtain environmental information outside the housing 10
  • the angle of view obtained based on the camera 40 is larger, and after the environmental information is processed by the camera 40, the presented augmented reality scene has a larger angle of view and a better presentation effect.
  • the head-mounted device in the embodiment of the present invention is provided with at least two switching modes, such as switching between an augmented reality scene and a virtual reality scene by turning on or off the camera 40; for example, by driving the shading plate 60 to move to the first position , To cover the light transmission between the window 13 and the housing 10, or to drive the shading plate 60 to move to the second position, so that the environmental information outside the housing 10 can be obtained from the window 13 to realize the virtual reality scene and the augmented reality scene. Switch between.
  • the display effects achieved by the two switching methods are different. The user can choose a switching method based on one head-mounted device according to his own needs, without the user having to change the head-mounted device, which provides convenience for the user.
  • the camera 40 in this embodiment is also mounted on the mounting board 80 and is located on the side facing away from the window 13.

Abstract

一种头戴设备，包括壳体（10），所述壳体（10）内设有安装腔（11），所述壳体（10）上设有至少一个与所述安装腔（11）连通的视窗（13）；至少一组成像系统（20），所述成像系统（20）装设在所述安装腔（11）内，所述成像系统（20）包括显示单元（21）和光学组件（22），所述显示单元（21）发出的光经所述光学组件（22）后射向所述视窗（13）；至少一组摄像头（40），所述摄像头（40）设置在所述壳体（10）上，或者位于所述安装腔（11）内，摄像头（40）用于采集所述壳体（10）外的环境信息；以及处理器，处理器与所述显示单元（21）连接和所述摄像头（40）连接，所述处理器用于控制所述显示单元（21）显示图像，还用于控制所述摄像头（40）打开或关闭。该头戴设备可以使得用户在不更换头戴设备的情况下，即可实现虚拟现实场景和增强现实场景之间的切换，提高头戴设备的使用便利性。

Description

头戴设备 技术领域
本发明涉及光学成像技术领域，特别涉及一种可在虚拟现实和增强现实之间切换的头戴设备。
背景技术
近年来，显示技术有了较快的发展，其中虚拟现实技术和增强现实技术作为全新的技术，基于其能够将虚拟和现实结合后显示给用户，给用户带来全新的体验而受用户喜爱，因此虚拟现实和增强现实应用越来越广泛。
虚拟现实技术是可以创建和体验虚拟世界的计算机仿真系统，它利用计算机生成一种模拟环境，使用户沉浸到该环境中。具体是通过计算机技术模拟出来的现实中的世界。
增强现实技术是促使真实世界信息和虚拟世界信息内容之间综合在一起的技术内容，具体是真实环境和虚拟物体之间重叠之后，能够在同一个画面以及空间中同时存在的技术。
由于虚拟现实技术和增强现实技术的显示原理不同，能够呈现虚拟现实场景的结构与能够呈现增强现实场景的结构也会不同，因此一般在一个结构上只能单一呈现虚拟现实场景或增强现实场景。若用户想在虚拟现实场景和增强现实场景之间切换，需要将虚拟现实设备取下来后，再佩戴增强现实设备，若用户频繁切换，则需要频繁在虚拟现实设备和增强现实设备之间更换佩戴，用户带来佩戴极不方便。
发明内容
本发明的主要目的是提出一种头戴设备，旨在解决现有技术中设备只能单一呈现虚拟现实场景或增强显示场景，在虚拟现实场景和增强现实场景之间切换切换时，需要更换佩戴的设备，给用户带来佩戴不方便的技术问题。
为实现上述目的，本发明提出的一种头戴设备，所述头戴设备包括：
壳体，所述壳体内设有安装腔，所述壳体上设有至少一个与所述安装腔 连通的视窗；
至少一组成像系统，所述成像系统装设在所述安装腔内，所述成像系统包括显示单元和光学组件，所述显示单元发出的光经所述光学组件后射向所述视窗；
至少一组摄像头，所述摄像头设置在所述壳体上，或者位于所述安装腔内，所述摄像头用于采集所述壳体外的环境信息；
以及处理器，所述处理器与所述显示单元连接和所述摄像头连接，所述处理器用于控制所述显示单元显示图像，还用于控制所述摄像头打开或关闭。
可选地，所述壳体上设有透光部，所述摄像头设置在所述安装腔内，所述透光部位于所述摄像头的入光侧，以使所述摄像头通过所述透光部采集所述壳体外的环境信息。
可选地，所述光学组件包括第一镜组和第二镜组，所述第一镜组位于所述显示单元和所述第二镜组之间；
所述显示单元发出的光经所述第一镜组后，射向所述第二镜组，经过所述第二镜组射出的光传输到所述视窗，其中，所述第一镜组用于调节成像的像差，第二镜组用于改变光的传输方向。
可选地，所述第二镜组包括平面反射透镜、半透半反透镜和曲面反射透镜，从所述第一镜组的出射光经所述平面反射透镜反射至所述半透半反透镜，所述半透半反透镜对所述平面反射透镜的出射光进行反射后反射至所述曲面反射透镜，所述曲面反射透镜对所述半透半反透镜的反射光进行反射后出射至所述半透半反透镜，所述半透半反透镜将所述曲面反射透镜的出射光透射至所述视窗。
可选地，所述第一镜组包括从所述显示单元往所述第二镜组方向依次排列的第一透镜、第二透镜和第三透镜；
其中，所述第一透镜的入光面和出光面均为凸面；
所述第二透镜的入光面为凹面，出光面为凸面；
所述第三透镜的的入光面为凸面，出光面为凹面。
可选地，所述光学组件还包括安装座，所述第一镜组和所述第二镜组装设在所述安装座内。
可选地，所述头戴设备还包括遮光板以及驱动组件，所述遮光板可移动 设置在所述安装腔内，且位于所述光学组件背离所述视窗的一侧，所述驱动组件与所述遮光板连接，所述驱动组件驱动所述遮光板在第一位置和所述第二位置之间移动，所述第一位置位于所述视窗的光路传输路径上，所述第二位置与所述视窗相错。
可选地，所述驱动组件包括调节轮和传动齿轮，所述传动齿轮与所述调节轮同轴设置；所述遮光板上设有齿条，所述齿条与所述第一位置和所述第二位置之间的连接线平行，所述传动齿轮与所述齿条啮合连接。
可选地，所述头戴设备还包括安装板，所述安装板设置在所述安装腔内，所述安装板上开设有透光孔，所述透光孔位于所述视窗的传输路径上；所述遮光板可移动设置在所述安装板上，所述光学组件安装在所述安装板面向所述视窗的一侧，所述透光孔、光学组件和视窗位于同一直线上，所述遮光板位于所述透光孔和光学组件之间；所述壳体外的光依次经所述透光部、所述透光孔以及所述光学组件透射到所述视窗。
可选地，所述摄像头安装在所述安装板背离所述视窗的一面上。
本发明实施例通过在头戴设备设置成像系统，由成像系统实现虚拟现实场景的呈现，还在头戴设备上设置摄像头，通过摄像头获取实景环境信息，通过实景环境信息和虚拟场景实现增强现实场景的呈现，在一个头戴设备上即可实现虚拟现实场景和增强现实场景之间的切换，如此，用户不需要更换头戴设备即可实现两种场景的切换，提高头戴设备的使用便利性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1是本发明提供的头戴设备一视角的结构示意图；
图2是本发明提供的头戴设备另一视角的结构示意图；
图3是本发明提供的头戴设备的透光部内的结构示意图；
图4是本发明提供的头戴设备的内部结构示意图；
图5是本发明提供的头戴设备的光学系统结构示意图；
图6是本发明提供的头戴设备的光学组件的结构示意图；
图7是本发明提供的头戴设备的遮光板和驱动组件的连接结构示意图。
附图标号说明：
标号 名称 标号 名称
10 壳体 20 成像系统
11 安装腔 21 显示单元
12 透光部 22 光学组件
30 海绵垫 221 第一镜组
40 摄像头 2211 第一透镜
50 电路板 2212 第二透镜
13 视窗 2213 第三透镜
60 遮光板 222 第二镜组
61 齿条 2221 平面反射透镜
70 驱动组件 2222 半透半反透镜
71 调节轮 2223 曲面反射透镜
72 传动齿轮 223 安装座
73 拨动齿轮 2231 支撑架
80 安装板 2232 镜组安装壳
81 透光孔 2233 密封筒
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出 创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
请参照图1至图4，本发明提出一种头戴设备，所述头戴设备既能实现虚拟现实场景的呈现，又能实现增强显示场景的呈现。用户可以根据需求在虚拟现实场景和增强现实场景之间切换。
所述头戴设备包括壳体10、处理器(图中未标注)、至少一组成像系统20以及至少一组摄像头40。
所述壳体10内设有安装腔11，所述壳体10上设有至少一个与所述安装腔11连通的视窗13。具体地，所述壳体10包括前面板和后面板，所述前面板与所述后面板相对设置，所述视窗13设置在所述后面板上，所述头戴设备佩戴时，将后面板贴合人眼，人通过所述视窗13可以观看到所述头戴设备呈现的虚拟现实场景或增强显示场景。为了提高佩戴的舒适性，所述后面板上设有海绵垫30，所述海绵垫30呈弧状设置。
所述成像系统20装设在所述安装腔11内，所述成像系统20包括显示单元21和光学组件22，所述显示单元21发出的光经所述光学组件22后射向所述视窗13。
所述摄像头40设置在所述壳体10上，或者设置于所述安装腔11内，用于采集所述壳体10外的现实环境信息。例如，所述摄像头40设置在所述壳体10上，所述摄像头40朝向所述壳体10外，所述摄像头40打开时可实时或定时采集壳体10外的现实环境信息。或者，为了美观，且为了保护摄像头 40，可以将所述摄像头40设置在所述安装腔11内。此时为了确保摄像头40开启时，能够获取到壳体10外的现实环境信息，在所述壳体10上设置透光部12，所述透光部12位于所述摄像头40的入光侧，以使所述摄像头40通过所述透光部12能够采集所述壳体10外的环境信息。具体是在所述壳体10的前面板上设置所述透光部12，摄像头40通过所述前面板采集所述头戴设备前方的现实环境信息。在一实施例中，所述头戴设备的前面板还可以采用透明亚克力材料制作，使得所述前面板为透明的面板，所述摄像头40通过透明面板采集更大视角的现实环境信息。
所述处理器设置在电路板50上，所述电路板50安装在所述安装腔11内，所述处理器与所述摄像头40和所述显示单元21连接，所述处理器向所述显示单元21输出显示数据，以控制所述显示单元21显示图像信息，所述处理器还用于控制所述摄像头40打开或关闭。若用户需求头戴设备呈现虚拟现实场景时，所述处理器输出预设的VR虚拟现实场景显示数据，同时控制所述摄像头40关闭，所述显示单元21根据所述虚拟现实场景显示数据显示，显示单元21发出的光经过所述光学组件22后，经所述视窗13射到人眼中，形成虚拟现实场景。若用户需求头戴设备呈现增强现实场景，所述处理器控制所述摄像头40打开，所述摄像头40实时获取的现实环境信息传输至所述处理器，所述处理器将现实环境信息与预设的AR虚拟信息结合形成增强现实场景显示数据，并输出给显示单元21，所述显示单元21根据所述增强现实场景显示数据显示，显示单元21发出的光经过所述光学组件22后，经所述视窗13射到人眼中，形成虚拟现实场景。如此，实现在一个头戴设备上实现在虚拟现实场景和增强现实场景之间的切换。
本实施例通过在头戴设备设置成像系统20，由成像系统20实现虚拟现实场景的呈现，还在头戴设备上设置摄像头40，通过摄像头40获取实景环境信息，通过实景环境信息和虚拟场景实现增强现实场景的呈现，在一个头戴设备上即可实现虚拟现实场景和增强现实场景之间的切换，如此，用户不需要更换头戴设备即可实现两种场景的切换，提高头戴设备的使用便利性。
可以理解的是，本实施例中的所述壳体10上设有两个视窗13，适配用户的眼睛。所述头戴设备包括两组所述摄像头40和两组所述成像系统20，两组所述摄像头40对称设置在所述壳体10的两侧，一组成像系统20对应一个所 述视窗13。其中，两个所述成像系统20可以独立成像，也可以同时成像，也即所述成像系统20可以由分包由处理器单独控制，也可以由处理器统一控制。两个所述成像系统20独立成像时，可以实现左右两端分别呈现不同的场景，给用户带来不同的体验，增加头戴设备的使用效果。
可以理解的是，请参照图5和图6，所述光学组件22包括第一镜组221和第二镜组222，所述第一镜组221位于所述显示单元21和所述二镜组之间；所述显示单元21发出的光经所述第一镜组221后，射向所述第二镜组222，经过所述第二镜组222射出的光传输到所述视窗13。本实施例中，所述第一镜组221用于调整显示单元21发出的光的发射方向，以调整成像的像差，所述第二镜组222用于改变光的传输方向，以使光能够最终传输到视窗13，从视窗13进入人眼。
其中，所述第二镜组222包括平面反射透镜2221、半透半反透镜2222和曲面反射透镜2223，从所述第一镜组221的出射光经所述平面反射透镜2221反射至所述半透半反透镜2222，所述半透半反透镜2222对所述平面反射透镜2221的出射光进行反射后反射至所述曲面反射透镜2223，所述曲面反射透镜2223对所述半透半反透镜2222的反射光进行反射后出射至所述半透半反透镜2222，所述半透半反透镜2222对所述曲面反射透镜2223的出射光投射至所述视窗13。
具体地，所述平面反射透镜2221的入光面与从所述第一镜组221发射出的光呈夹角设置，所述半透半反透镜2222的反射面朝向所述平面反射透镜2221，所述曲面反射透镜2223的反射面朝向所述半透半反透镜2222。光从所述第一镜组221发出后，直接射向所述平面反射透镜2221，所述平面反射透镜2221的入光面为反射面，将光反射到所述半透半反透镜2222，所述半透半反透镜2222为入光面设置有偏振反射膜的透镜，从所述平面反射透镜2221反射的光经所述半透半反透镜2222时，光的入射方向与所述偏振反射膜的偏振方向不同，光反射到所述曲面反射透镜2223上，所述曲面反射透镜2223将光反射后，该变了光的方向，使得光再射入所述半透半反透镜2222时，与偏振反射膜的偏振方向相同，光经过所述半透半反透镜2222透射到所述视窗13，进而传输到人眼中。
可以理解的是，所述第二镜组222不仅具有改变光的传输方向的效果，所述第二镜组222中的曲面反射透镜2223还具有聚光效果，提高成像效果。
进一步地，所述第一镜组221包括从所述显示单元21往所述第二镜组222方向依次排列的第一透镜2211、第二透镜2212和第三透镜2213；
其中，所述第一透镜2211的入光面和出光面均为凸面；
所述第二透镜2212的入光面为凹面，出光面为凸面；
所述第三透镜2213的的入光面为凸面，出光面为凹面。
所述显示单元21开启时，光从所述第一透镜2211的入光面射入所述第一透镜2211，经过所述第一透镜2211后，向所述第二透镜2212投射，从所述第二透镜2212出来后投射到所述第三透镜2213，进所述第三透镜2213后传输到平面反射透镜2221。
所述第二镜组222通过三组凹凸透镜依次调整光的投射光学，进而达到调整成像像差的作用。
进一步地，所述光学组件22还包括安装座223，所述第一镜组221和所述第二镜组222装设在所述安装座223内。具体所述安装座223包括支撑架2231、镜组安装壳2232和密封筒2233，所述镜组安装壳2232包括第一安装腔11和第二安装腔11，所述第一安装腔11与所述第二安装腔11导通，所述第一安装腔11背离所述第二安装腔11的一端设有入光口，所述密封筒2233连接于所述显示单元21和所述第一安装腔11的入光口之间，所述第一镜组221装设在所述第一安装腔11内，所述第二安装腔11与所述第二安装腔11相对的腔壁上设有第一安装口，所述第二安装腔11与所述第一安装口相邻且靠近所述视窗13的腔壁上设有第二安装口，所述第二安装口相对的腔壁上设有第三安装口，所述平面反射透镜2221安装在所述第一安装口上，所述半透半反透镜2222装设在所述第二安装口上，所述曲面反射透镜2223安装在所述第三安装口上。所述支撑架2231设置在远离所述镜组安装壳2232的一侧，用于将所述镜组安装壳2232支撑在所述壳体10的安装腔11内。
进一步地，请参照图7，为了防止从所述透光部12进入的光，经过所述光学组件22，影响成像效果，本实施例所述头戴设备还包括遮光板60以及驱动组件70，所述遮光板60设置在所述安装腔11内，用于遮挡所述透光部12 进入所述光学组件22或视窗13的光。进一步地，本实施例通过设置所述遮光板60可调节进入视窗13的光，实现不开启摄像头40的基础上，也可以通过所述透光孔8181获取壳体10外的环境信息，基于透光孔8181获取的环境信息和显示单元21发出的虚拟环境信息在所述光学组件22中混合后，形成增强现实场景，实现增强现实环境的呈现。
故而，设置所述遮光板60可移动设置在所述安装腔11内，且位于所述光学组件22背离所述视窗13的一侧，所述驱动组件70与所述遮光板60连接，所述驱动组件70驱动所述遮光板60在第一位置和所述第二位置之间移动，所述第一位置位于所述透光部12和所述视窗13之间的光传输路径上，具体地，所述第一位置与所述视窗13的投影叠加，所述第二位置与所述视窗13相错。具体地，所述第一位置为所述透光部12与所述视窗13之间的投影位置，壳体10外的光经过所述透光部12可传输到所述视窗13，因此设置所述遮光板60在所述透光部12和所述视窗13之间，遮挡外部进入的光。而所述遮光板60可移动设置在所述安装腔11内，当用户需求头戴设备呈现虚拟现实场景时，可以驱动所述遮光板60移动到所述透光部12和所述视窗13之间的光传输路径上，遮挡从壳体10外进入的光，只有从所述显示单元21上发出发光经过所述光学组件22进入人眼，实现虚拟现实场景的显示。而当用户需求头戴设备呈现增强现实场景时，且不开启摄像头40时，可以驱动所述遮光板60移动到第二位置，避开所述所述透光部12和所述视窗13之间的光传输路径，使得壳体10外的光进入所述光学组件22，与所述从所述显示单元21上发出发光汇合后进入人眼，实现增强现实场景的显示。
可以理解的是，所述驱动组件70包括调节轮71和传动齿轮72，所述传动齿轮72与所述调节轮71同轴设置；所述遮光板60上设有齿条61，所述齿条61与所述第一位置和所述第二位置之间的连接线平行，所述传动齿轮72与所述齿条61啮合连接。驱动所述调节轮71转动时，所述传动齿轮72随轴转动，所述传动齿轮72转动时，带动所述齿条61移动，进而所述齿条61带动所述遮光板60移动。基于所述齿条61位与所述第一位置和所述第二位置之间的连接线平行，所述齿条61移动过程中，带动所述遮光板60沿所述第一位置和所述第二位置移动。
需要说明的是，所述调节轮71可以与电机连接，由电机驱动转动；或者 所述调节轮71部分外露于所述壳体10外，以供用户手动驱动所述调节轮71转动。或者，所述驱动组件70还包括拨动齿轮73，而所述调节轮71为调节齿轮，所述拨动齿轮73与所述调节齿轮啮合连接，所述拨动齿轮73位于所述调节轮71背离所述传动轮的一侧，所述拨动齿轮73部分外露于所述壳体10外，以供用户手动拨动。
本实施例中，所述遮光板60与所述视窗13一一对应，如所述头戴设备设置有两个所述视窗13，则设置两个所述遮光板60。而所述驱动组件70可以设置一组，如两个所述遮光板60上的齿条61相对延伸，且两个所述齿条61上的啮合齿位于两个所述齿条61两相对的面上，所述传动齿轮72同时与两个所述齿条61啮合，所述传动齿轮72转动时，带动两个所述齿条61往相对或相背的方向移动，如此能够保证两个视窗13区别的同时调节。或者，所述驱动组件70可以设置两组，每组所述驱动组件70对应驱动一所述遮光板60。
所述头戴设备还包括安装板80，所述安装板80设置在所述安装腔11内，所述安装板80上开设有透光孔8181，所述透光孔8181位于所述视窗13的传输路径上；所述遮光板60可移动设置在所述安装板80上，所述光学组件22安装在所述安装板80面向所述视窗13的一侧，所述透光孔8181、光学组件22和视窗13位于同一直线上，所述遮光板60位于所述透光孔8181和光学组件22之间。
所述壳体10外的光依次经过所述透光部12、所述透光孔8181以及所述光学组件22透射至所述视窗13。
本实施例中，设置所述透光孔8181与所述透光部12形成一光路，可以从所述透光孔8181和透光部12直接获取壳体10外的环境信息，结合显示单元21显示的虚拟场景信息可以在设备中呈现增强现实场景，相对于采用摄像头40获取壳体10外的环境信息，直接通过透光孔8181获取的实际环境信息未经过处理，与现实环境更接近，更具真实信息。而采用摄像头40获取壳体10外的环境信息，基于摄像头40获取的视角更大，且环境信息经过摄像头40处理后，呈现的增强现实场景的视角更大，且呈现的效果更佳。
本发明实施例中的头戴设备设置至少两种切换方式，如通过摄像头40的开启或关闭实现增强现实场景和虚拟现实场景之间的切换；如通过驱动所述 遮光板60移动至第一位置，遮住视窗13与壳体10外的光线传输，或者驱动所述遮光板60移动至第二位置，使得从视窗13可以获取壳体10外的环境信息，实现虚拟现实场景和增强现实场景之间的切换。且两种切换方式达到的显示效果不同，用户可以基于一个头戴设备，可以根据自己的需求选择切换方式，无需用户更换头戴设备，为用户提供便利。
可以理解的是，本实施例中的摄像头40也安装在所述安装板80上，且位于背离所述视窗13的一面上。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种头戴设备，其特征在于，所述头戴设备包括：
    壳体，所述壳体内设有安装腔，所述壳体上设有至少一个与所述安装腔连通的视窗；
    至少一组成像系统，所述成像系统装设在所述安装腔内，所述成像系统包括显示单元和光学组件，所述显示单元发出的光经所述光学组件后射向所述视窗；
    至少一组摄像头，所述摄像头设置在所述壳体上，或者位于所述安装腔内，所述摄像头用于采集所述壳体外的环境信息；
    以及处理器，所述处理器与所述显示单元连接和所述摄像头连接，所述处理器用于控制所述显示单元显示图像，还用于控制所述摄像头打开或关闭。
  2. 如权利要求1所述的头戴设备，其特征在于，所述壳体上设有透光部，所述摄像头设置在所述安装腔内，所述透光部位于所述摄像头的入光侧，以使所述摄像头通过所述透光部采集所述壳体外的环境信息。
  3. 如权利要求2所述的头戴设备，其特征在于，所述光学组件包括第一镜组和第二镜组，所述第一镜组位于所述显示单元和所述第二镜组之间；
    所述显示单元发出的光经所述第一镜组后，射向所述第二镜组，经过所述第二镜组射出的光传输到所述视窗，其中，所述第一镜组用于调节成像的像差，第二镜组用于改变光的传输方向。
  4. 如权利要求3所述的头戴设备，其特征在于，所述第二镜组包括平面反射透镜、半透半反透镜和曲面反射透镜，从所述第一镜组的出射光经所述平面反射透镜反射至所述半透半反透镜，所述半透半反透镜对所述平面反射透镜的出射光进行反射后反射至所述曲面反射透镜，所述曲面反射透镜对所述半透半反透镜的反射光进行反射后出射至所述半透半反透镜，所述半透半反透镜将所述曲面反射透镜的出射光透射至所述视窗。
  5. 如权利要求3所述的头戴设备，其特征在于，所述第一镜组包括从所述显示单元往所述第二镜组方向依次排列的第一透镜、第二透镜和第三透镜；
    其中，所述第一透镜的入光面和出光面均为凸面；
    所述第二透镜的入光面为凹面，出光面为凸面；
    所述第三透镜的的入光面为凸面，出光面为凹面。
  6. 如权利要求5所述的头戴设备，其特征在于，所述光学组件还包括安装座，所述第一镜组和所述第二镜组装设在所述安装座内。
  7. 如权利要求2所述的头戴设备，其特征在于，所述头戴设备还包括遮光板以及驱动组件，所述遮光板可移动设置在所述安装腔内，且位于所述光学组件背离所述视窗的一侧，所述驱动组件与所述遮光板连接，所述驱动组件驱动所述遮光板在第一位置和所述第二位置之间移动，所述第一位置位于所述视窗的光路传输路径上，所述第二位置与所述视窗相错。
  8. 如权利要求7所述的头戴设备，其特征在于，所述驱动组件包括调节轮和传动齿轮，所述传动齿轮与所述调节轮同轴设置；所述遮光板上设有齿条，所述齿条与所述第一位置和所述第二位置之间的连接线平行，所述传动齿轮与所述齿条啮合连接。
  9. 如权利要求7所述的头戴设备，其特征在于，所述头戴设备还包括安装板，所述安装板设置在所述安装腔内，所述安装板上开设有透光孔，所述透光孔位于所述视窗的传输路径上；所述遮光板可移动设置在所述安装板上，所述光学组件安装在所述安装板面向所述视窗的一侧，所述透光孔、光学组件和视窗位于同一直线上，所述遮光板位于所述透光孔和光学组件之间；所述壳体外的光依次经所述透光部、所述透光孔以及所述光学组件透射至所述视窗。
  10. 如权利要求9所述的头戴设备，其特征在于，所述摄像头安装在所述安装板背离所述视窗的一面上。
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