WO2021164437A1

WO2021164437A1 - Head-mounted device

Info

Publication number: WO2021164437A1
Application number: PCT/CN2020/141996
Authority: WO
Inventors: 杜鹏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-02-19
Filing date: 2020-12-31
Publication date: 2021-08-26
Also published as: CN115016122A; CN111240017A; CN111240017B

Abstract

The present application relates to the technical field of intelligent devices, and disclosed thereby is a head-mounted device. The head-mounted device comprises a wearable main body for displaying an image and a folding portion for wearing. The folding portion and the wearable main body are pivotally connected, such that the folding portion can rotate and become close to the wearable main body. The wearable main body comprises an optical display member for displaying an image and a light steering member which is provided on the optical display member, the light steering member being used to receive an optical signal of the image and to steer and guide same into the optical display member; and one end of the folding portion that is pivotally connected with the wearable main body is provided with an optical machine. The optical machine and the light steering member are oppositely disposed, so as to transmit the optical signal of the image to the light steering member. By providing an optical machine on a folding portion, the present application enables the optical machine to rotate along with the folding portion and become close to a wearable main body, so as to achieve folding for storage and to reduce the amount of space that is occupied by the head-mounted device by means of folding; in addition, by means of the light steering member steering an optical signal of an image, the optical signal of the image is freely transmitted.

Description

Headset

【Technical Field】

This application belongs to the technical field of smart devices, and particularly relates to a head-mounted device.

【Background technique】

Due to the optical-mechanical structure and camera arrangement, most of AR glasses are helmet-type, which takes up a lot of space.

[Summary of the invention]

The technical problem to be solved by this application is to provide a head-mounted device, which aims to change the structural arrangement of the head-mounted device so as to facilitate folding and storage and reduce the volume of space occupied by the head-mounted device.

In order to solve the above technical problems, the technical solution adopted is: a head-mounted device, which includes:

Wear the subject, including:

Optical display, used to display images;

The light turning member is arranged on the optical display member, and is used to receive the light signal of the image, turn the light signal of the image, and guide the light signal to the optical display member; and

The folding part is pivotally connected to the wearing main body so that the folding part can be rotatably close to the wearing main body. The light turning parts are arranged opposite to each other, so as to transmit the light signal of the image to the light turning parts.

The first and second optical display elements are symmetrically arranged and used to display images;

The first and second light turning parts are used to receive the light signal of the image, and the first light turning part is arranged on the first optical display part, which is used to turn the light signal of the image and lead it to all The first optical display element, and the second optical display element is provided on the second optical display element for steering the optical signal of the image and guiding it to the second optical display element; and

The first and second legs are arranged symmetrically, and the first leg is pivotally connected to the first optical display member so that the first leg can be rotatably close to the first optical display member, and the first leg One end of one leg pivoted to the first optical display member is provided with a first optical engine, and the first optical engine is arranged opposite to the first light redirecting member, so as to emit the light to the first light redirecting member. The optical signal of the image; the second leg is pivotally connected to the second optical display member, so that the second leg can be rotatably close to the second optical display member, and the second leg and A second optical engine is provided at one end of the second optical display element which is pivotally connected, and the second optical engine is arranged opposite to the second light turning element, so as to transmit the optical signal of the image to the second light turning element .

Adopting the technical solution described in this application has the beneficial effect that the optical machine is arranged in the folding part so that the optical machine can be rotated close to the wearing body along with the folding part to complete the folding and storage, so as to reduce the head-wearing style by folding. The space occupied by the equipment; in addition, the problem that the optical signal of the image cannot be transmitted caused by the change of the position of the optical machine, the optical signal of the image can be turned by the optical turning member, so that the optical signal of the image can be transmitted without obstacles.

【Explanation of the drawings】

FIG. 1 is a schematic diagram of the structure of a head-mounted device in an embodiment of the application;

FIG. 2 is similar to FIG. 1, which is a schematic structural diagram of a head-mounted device in another view angle according to an embodiment of the application.

FIG. 3 is similar to FIG. 1, which is a schematic structural diagram of the head-mounted device in an embodiment of the application from another perspective;

FIG. 4 is similar to FIG. 1, which is a schematic structural diagram of the head-mounted device in an embodiment of the application from another perspective;

FIG. 5 is a schematic diagram of the structure of a light steering member in an embodiment of the application;

FIG. 6 is a schematic diagram of the structure of a light steering member in another embodiment of the application;

FIG. 7 is a schematic diagram of the structure of a light steering member in another embodiment of the application;

FIG. 8 is similar to FIG. 1, which is a schematic diagram of the structure of the head-mounted device from another perspective in an embodiment of the application;

FIG. 9 is a schematic diagram of the structure of a light steering member in an embodiment of the application;

FIG. 10 is a schematic diagram of the structure of a light steering member in another embodiment of the application;

FIG. 11 is a schematic diagram of the structure of a light steering member in another embodiment of the application;

FIG. 12 is a schematic diagram of the structure of the head-mounted device from another perspective in an embodiment of the application.

【Detailed ways】

Please refer to FIG. 1, which discloses a schematic structural diagram of a head-mounted device in an embodiment of the present application. The head-mounted device 100 may be a virtual reality device or an augmented reality device, such as virtual reality glasses or augmented reality glasses. Of course, the head-mounted device 100 may also be other head-mounted display devices that have elements such as optical machines and optical waveguides and can be foldably stored. Take virtual reality or augmented reality glasses as an example for detailed explanation.

Please refer to FIG. 1, the head-mounted device 100 may include a wearing body 300 and a folding part 500. The folding part 500 is connected to both ends of the wearing body 300 respectively, and the folding part 500 can be folded toward the other end of the wearing body 300 at the connection place with the wearing body 300 to complete the storage. When the user wears, the wearing body 300 can be erected in front of the user's eyes, and the folding part 500 can be erected on the left and right ears of the user to complete the wearing. It is also possible to form a ring-shaped bracket with the wearing body 300 through the folding part 500, which is looped around the head to complete the wearing.

Referring to FIG. 1, the wearing body 300 may be the body of a head-mounted display device for displaying images of virtual reality or augmented reality. It may include a first optical display element 10, a second optical display element 20 and a connecting element 30. The first optical display element 10 and the second optical display element 20 are symmetrically arranged, and the connecting element 30 connects the first optical display element 10 and the second optical display element 20, so that the first optical display element 10 and the second optical display element 20 Integral with the connecting member 30, one side of the first optical display member 10 not connected to the connecting member 30 is connected to one end of the folding portion 500, and one side of the second optical display member 20 not connected to the connecting member 30 and the other end of the folding portion 500 connect. When wearing, the first optical display element 10 can face the wearer's left eye, and the second optical display element 20 can face the wearer's right eye, so that the wearer can see a three-dimensional image according to the principle of binocular vision imaging.

It should be pointed out that the terms "first", "second", "third", etc. here and in the following are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating what is indicated The number of technical features. Therefore, the features defined as “first”, “second”, “third”, etc. may explicitly or implicitly include one or more of the features.

Understandably, for the names "first optical display element", "second optical display element" and "optical display element", this application is not limited to the limitation of the above-mentioned names, and names of similar structures can be interchanged according to actual conditions. ; For example, the "first optical display element" may also be referred to as the "second optical display element".

Please refer to FIG. 1, FIG. 2 and FIG. 3. FIG. 2 is similar to FIG. A structural schematic diagram of the head-mounted device 100 in an embodiment of the application from another perspective. The first optical display part 10 may include a mounting frame 11, a first optical waveguide 12, a first light turning part 13 and a camera 14. Wherein, the mounting frame 11 is used to carry the first optical waveguide 12, the first light turning member 13 and the camera 14, the first optical waveguide 12 and the first light turning member 13 establish an optical path connection, and the first light turning member 13 is used to transfer the light Turning to the first optical waveguide 12, the first optical waveguide 12 is used for imaging, so that the wearer can see the image, and the camera 14 can be used to obtain the image required for displaying the virtual reality or augmented reality device.

Referring to 2 and 3, the mounting frame 11 can be made of hard materials such as metal, rubber, plastic, etc. The mounting frame 11 may be a ring structure such as a rectangular ring structure. The mounting frame 11 is formed on the edge of the first optical waveguide 12. In an embodiment, the mounting frame 11 may also be a semi-annular structure to be formed on the edge of the first optical waveguide 12, for example, the upper edge of the first optical waveguide 12. The mounting frame 11 can be connected to the second optical display member 20 through the connecting member 30. A side of the mounting frame 11 away from the connecting member 30 is provided with a first pivoting portion 111 to pivotally connect with the folding portion 500 to facilitate folding of the folding portion 500. The mounting frame 11 is provided with a mounting portion 112 near the first pivoting portion 111 to install the first optical waveguide 12 and the first light turning member 13, and the mounting portion 112 may be on the same side of the mounting frame 11 as the first pivoting portion 111. The mounting frame 11 is provided with a camera mounting portion 113 for mounting the camera 14 on the other side where the first pivoting portion 111 is not provided. The camera mounting portion 113 may be located between the connecting member 30 and the first pivoting portion 111. The position of the camera mounting portion 113 can be adjusted according to actual conditions.

1 and 2 and 3, the first optical waveguide 12 may be a planar grating waveguide such as a diffraction grating waveguide. The first optical waveguide 12 may include a light coupling inlet part 121 and a light coupling outlet part 122. The light coupling inlet portion 121 and the light coupling outlet portion 122 are connected together to form an optical path. The light is coupled from the light coupling inlet portion 121 into the first optical waveguide 12, and is transmitted in the optical path. The first optical waveguide 12 is coupled out, injected into the eyes of the wearer and imaged on the retina. Wherein, the light coupling inlet portion 121 can be installed at the mounting portion 112 and is optically connected with the first light turning member 13 to receive the light deflected by the first light turning member 13. The light coupling outlet 122 is provided inside the mounting frame 11, and can face the eyes of the wearer, such as the left eye, when the head-mounted device 100 is worn by the user.

Please refer to FIG. 2, FIG. 3, FIG. 4, and FIG. 5. FIG. 4 is similar to FIG. FIG. 5 discloses a schematic diagram of the structure of the first light redirecting member 13 in an embodiment of the present application. The first light turning member 13 can be fixed at the mounting portion 112 and corresponds to the light coupling inlet portion 121 of the first optical waveguide 12, and is used to receive incident light so as to turn the incident light and turn it to the light coupling inlet portion 121, So that the light enters the first optical waveguide 12. Specifically, the first light redirecting member 13 can be fixed to the mounting portion 112 by means of adhesive bonding or the like. The first light turning member 13 and the first pivoting portion 111 are located on the same side of the mounting frame 11. The first light redirecting member 13 may be a plane mirror (also called a reflecting mirror), a prism (such as a reflecting prism), etc., which can change the direction of light propagation by reflection.

Please refer to FIG. 4 and FIG. 5 and FIG. 6. FIG. 6 discloses a schematic structural diagram of the first light redirecting member 13 in another embodiment of the present application. Taking the first light turning member 13 as a reflective prism as an example, the first light turning member 13 may be a triangular prism, or a primary reflective prism, and the triangular prism may include an incident surface 131, a reflective surface 132, and an exit surface 133. Specifically, the exit surface 133 faces the light coupling inlet 121 and is connected to the reflective surface 132 and the incident surface 131 in sequence. Wherein, the cross-sections of the incident surface 131, the reflecting surface 132, and the exit surface 133 may be isosceles right-angled triangles (may also be referred to as total reflection prisms). Specifically, the reflective surface 132 is inclined at 45 degrees with respect to the incident surface 131 and the exit surface 133, that is, the angle α between the two is 45 degrees. Further, the incident surface 131 and the exit surface 133 are perpendicular to each other. The incident light enters from the incident surface 131, changes the propagation direction of the light after being reflected by the reflective surface 132, and then further exits from the exit surface 133 and enters the light coupling inlet 121.

Please refer to FIG. 5, FIG. 6 and FIG. 7. FIG. 7 discloses a schematic diagram of the structure of the first light redirecting member 13 in another embodiment of the present application. In practical applications, due to the needs of incident light, the reflective surface 132 is often inclined with respect to the horizontal direction, and the first light redirecting member 13 has an asymmetric structure in the reflection direction of the light through the reflective surface 132, so the reflective surface 132 is far away from the incident light. The actual optical area of the side of the surface 131 is smaller than that of the side close to the incident surface 131, so that the partially reflective surface 132 far away from the incident surface 131 can only reflect less or even unable to reflect light. The contribution made by the reflection is very small, or even no contribution. The edges and corners of the first light turning member 13 away from the incident surface 131 are cut off to form the first light turning member 13 as shown in FIG. , Reduce the thickness of the first light turning member 13 in the direction perpendicular to the incident surface 131, thereby facilitating the lightness, thinness and miniaturization of the head-mounted device 100;

Referring to FIG. 7, the first light redirecting member 13 is a quadrangular prism. In addition to the incident surface 131, the reflective surface 132, and the exit surface 133 of the above-mentioned triangular prism, the quadrangular prism further includes connected to the reflective surface 132 and the exit surface 133. A backlight surface 134 is arranged in between and parallel to the incident surface 131 and opposite to each other. The distance between the backlight surface 134 and the incident surface 131 may range from 4.8 mm to 5.0 mm, such as 4.8 mm, 4.85 mm, 4.9 mm, 4.95 mm, 5.0 mm, and so on. The first light redirecting member 13 formed by the incident surface 131 and the backlight surface 134 set according to the distance range is moderate in volume, which can form a more compact and miniaturized head-mounted device 100 to meet more demands of consumers.

It should be pointed out that the above description is not intended to limit the structure of the first light redirecting member 13. For example, the reflecting surface 132 may also be inclined at other degrees with respect to the incident surface 131, such as 30 degrees, 60 degrees, etc.; and the incident surface 131 It may not be perpendicular to the exit surface 133, such as an 80-degree tilt, 90-degree tilt, etc.; the backlight surface 134 may not be parallel to the incident surface 131, etc., as long as the light deflected by the first light redirecting member 13 can be optically coupled The entrance portion 121 only needs to be received; at the same time, the first light redirecting member 13 can also be other reflective prisms, such as a double reflective prism, a triple reflective prism, a quadruple reflective prism, and so on.

Further, the above-mentioned reflecting prism can be made of materials with relatively good light transmission properties such as glass, plastic, etc., and reflective materials such as silver can also be coated on the surface of the reflecting surface 132 of the reflecting prism to enhance the reflection of incident light. Furthermore, when the reflective prism is made of a relatively brittle material such as glass, the reflective prism can be hardened to form a hardened layer on the incident surface 131, the reflective surface 132, the exit surface 133, the backlight surface 134, etc. Thus, the strength of the first light turning member 13 is improved. Among them, the hardening treatment may be infiltration of lithium ions, or a method such as sticking a film on each surface of the reflecting prism without affecting the conversion of light by the first light redirecting member 13.

It should be further pointed out that the number of the first light redirecting members 13 can be specifically set according to actual requirements, and is not specifically limited here.

In an embodiment, a shell may be provided outside the first light turning member 13 to wrap the first light turning member 13 to protect the first light turning member 13 and to prevent external light from affecting the inside of the first light turning member 13 The light has an impact.

The camera 14 may include one or more of a TOF (Time of Flight, TOF for short) camera, an RGB camera, and two fisheye cameras. Of course, the camera 14 may also be other types of cameras, which can be specifically adjusted according to actual needs.

Please refer to FIG. 1, FIG. 2 and FIG. 3. The second optical display element 20 is similar to the first optical display element 10, so the second optical display element 20 will not be described in detail here, and only the second optical display element 20 will be listed. As for the structure and structure, the specific structure and functional relationship of the second optical display element 20 can be referred to the first optical display element 10 in detail. The second optical display member 20 may include a mounting frame 21, a second optical waveguide 22, a second light turning member 23 and a camera 24. A side of the mounting frame 21 away from the connecting member 30 is provided with a first pivoting portion 211 to pivotally connect with the folding portion 500. The mounting frame 21 is provided with a mounting portion 212 near the first pivoting portion 211 to install the second optical waveguide 22 and the second light redirecting member 23, and the mounting portion 212 may be on the same side of the mounting frame 21 as the first pivoting portion 211. The mounting frame 21 is provided with a camera mounting portion 213 on the other side where the first pivoting portion 111 is not provided for mounting the camera 24. The second optical waveguide 22 may include a light coupling inlet part 221 and a light coupling outlet part 222. The light coupling inlet portion 221 can be installed at the mounting portion 212 and is optically connected to the second light turning member 23 to receive the light deflected by the second light turning member 23. The optical coupling outlet portion 222 is provided inside the mounting frame 21, and may face the eye of the wearer, such as the right eye, when the head-mounted device 100 is worn by the user.

Understandably, for the names "first light redirecting member", "second light redirecting member" and "light redirecting member", this application is not limited to the limitation of the above names, and names of similar structures can be interchanged according to actual conditions. ; For example, the "first light turning member" may also be referred to as the "second light turning member" or the "light turning member".

It is understandable that for the names "first optical waveguide", "second optical waveguide" and "optical waveguide", the present application is not limited to the limitation of the above names, and the names of similar structures can be interchanged according to actual conditions; for example, The "first optical waveguide" may also be referred to as the "second optical waveguide".

Please refer to FIG. 2, FIG. 3, FIG. 8 and FIG. 9. FIG. 8 is similar to FIG. FIG. 9 discloses a schematic structural diagram of the second light redirecting member 23 in an embodiment of the present application. The second light turning member 23 can be fixed at the mounting portion 212 and corresponds to the light coupling inlet portion 221 of the second optical waveguide 22, and is used to receive incident light so as to turn the incident light and turn it to the light coupling inlet portion 221, So that the light enters the second optical waveguide 22.

Please refer to FIG. 8 and FIG. 9 and FIG. 10. FIG. 10 discloses a schematic structural diagram of the second light redirecting member 23 in another embodiment of the present application. The second light turning member 23 may be a triangular prism, and the second light turning member 23 may include an incident surface 231, a reflective surface 232 and an exit surface 233. Please refer to FIG. 11 at the same time. FIG. 11 discloses a schematic structural diagram of the second light redirecting member 23 in another embodiment of the present application. The second light redirecting member 23 may be a quadrangular prism. In addition to the incident surface 231, the reflective surface 232, and the exit surface 233 of the above-mentioned triangular prism, the quadrangular prism further includes a prism connected between the reflective surface 232 and the exit surface 233 and connected to the The incident surface 231 is parallel to the backlight surface 234 arranged opposite to each other.

In an embodiment, a shell may be provided outside the second light redirecting member 23 so as to wrap the second light redirecting member 23 to protect the second light redirecting member 23, and to prevent external light from affecting the inside of the second light redirecting member 23. The light has an impact.

The camera 24 may include one or more of a TOF (Time of Flight, TOF for short) camera, an RGB camera, and two fisheye cameras. Of course, the camera 24 may also be other types of cameras, which can be specifically adjusted according to actual needs.

In an embodiment, the head-mounted device 100 may omit the first optical display element 10 or the second optical display element 20, or may use other structures to replace the first optical display element 10 or the second optical display element 20.

Referring to FIG. 2, the connecting member 30 is located between the first optical display member 10 and the second optical display member 20, and is used to connect the first optical display member 10 and the second optical display member 20, so that the first optical display member 10 It is integrated with the second optical display member 20. It can be made of the same material as the mounting frames 11 and 21, of course, it can also be made of other hard materials. In an embodiment, the connecting member 30 may include a connecting member main body 31 and a camera 32. The connector body 31 can be used to contact the nose bridge of the wearer to support the wearing body 300 during wearing. Therefore, the connector body 31 can be provided with a nose support structure on the side facing the nose bridge to contact the nose bridge. In an embodiment, a camera mounting portion 311 may be provided on the main body 31 of the connector to mount the camera 32.

The camera 32 may include one or more of a TOF (Time of Flight, TOF for short) camera, an RGB camera, and two fisheye cameras. Of course, the camera 32 may also be other types of cameras, which can be specifically adjusted according to actual needs.

In an embodiment, the camera mounted on the wearing body 300 may include a TOF (Time of Flight, TOF for short) camera, an RGB camera, and two fisheye cameras. The TOF camera may include a light emitting module and a light receiving module. The TOF camera can be installed at the camera installation part 311. When the TOF camera is working, the light emitting module is used to emit a modulated light beam. The light beam is received by the photosensitive receiving module after being reflected by the target object. The photosensitive receiving module can obtain the flight time of the light beam in space through demodulation, and then calculate the corresponding The distance of the target object. Therefore, through the TOF camera, when the user wears the head-mounted device 100 and walks in an environment such as a room, the shape and model of the room can be modeled; that is, by measuring each point to the head worn by the user The distance of the wearable device 100 can determine the shape and model of the room where the user is located, thereby constructing a scene. The RGB camera can be used to collect two-dimensional color images, the chromatic aberration of the captured image, etc., and it can be connected to a TOF camera and can be installed at the camera mounting part 311. Two fisheye cameras can be fixed to the

camera mounting parts

113 and 213 respectively.

Two fisheye cameras can be mainly used to coordinate imaging. Of course, the position arrangement of these cameras is not limited to this, and they can be adjusted according to actual needs. In addition, the types of cameras are not limited to this, and different types of cameras can be selected according to actual needs.

Using different cameras and different layout positions makes the imaging principles and effects different. For example, four cameras, a TOF camera, an RGB camera, and two fisheye cameras, can complement each other; among them, the fisheye camera has a larger shooting angle and can be a wide-angle camera, but its resolution can be relatively low. The resolution of the RGB camera can be relatively high, but its shooting angle can be relatively small. By combining the RGB camera and the fisheye camera, a larger shooting angle and clearer image can be formed.

In an embodiment, the head mounted device 100 may omit part or all of the

cameras

14, 24, 32.

In an embodiment, the mounting frame 11, the mounting frame 21, and the connector main body 31 may be an integral structure, and are referred to as a "mounting frame".

Referring to FIGS. 1, 3, 4 and 8, the folding part 500 may include a first leg 40 and a second leg 50. Among them, the first leg 40 is connected to the first optical display element 10, and the second leg 50 is connected to the second optical display element 20. The wearing of the head-mounted device 100 is completed by the cooperation of the first leg 40 and the second leg 50.

Understandably, for the names "first leg", "second leg" and "outrigger", this application is not limited to the limitation of the above names, and the names of similar structures can be interchanged according to actual conditions; for example, The "first leg" may also be referred to as the "second leg".

Referring to FIGS. 1, 3 and 4, the first leg 40 may include a leg main body 41, a second pivotal portion 42, a first optical engine 43, a processor 44 and a battery 45. The leg main body 41 has a strip structure, and can be made of the same material as the mounting frames 11 and 21, or of course, can also be made of other rigid materials. It is used to set up on the wearer's ear, such as the left ear, to complete the wearing of the head-mounted device 100. Therefore, the end of the leg main body 41 away from the mounting frame 11 can be bent toward the ear side, so that it can be stably erected on the ear and increase the wearability of the user.

The second pivot portion 42 is formed at the end of the leg main body 41 facing the mounting frame 11 for connecting with the first pivot portion 111, so that the leg main body 41 rotates around the second pivot portion 42 and moves toward the mounting frame. Fold on one side 21.

The first light machine 43 is used for the projection of images in augmented reality or virtual reality equipment, and can be installed at a position of the leg main body 41 close to the second pivot portion 42 and can be folded and stored with the leg main body 41. When the leg body 41 is unfolded, its projection opening faces the incident surface 131 of the first light turning member 13 so that the first optical engine 43 and the first light turning member 13 form an optical path for light transmission. In an embodiment, the first optical engine 43 may be located on the side of the leg main body 41 close to the second leg 50. In an embodiment, the propagation direction of the light projected by the first optical machine 43 can be set perpendicular to the direction in which the first optical display element 10 and the second optical display element 20 are located, so as to avoid the length of the first optical machine 43 in the light propagation direction. Affect the folding of the first leg 40.

The processor 44 may be used to run program data in the head-mounted device 100. Specifically, the processor 44 controls the operation of the head-mounted device 100. For example, the processor 44 can be used to control the first light engine 43 to project images, and can be used to process the images collected by the

cameras

14, 24, 32, such as image processing. Perform image processing such as image quality adjustment, rendering processing, special effects processing, etc. to form the image you need.

The processor 44 may be a CPU (Central Processing Unit, central processing unit) or a GPU (Graphics Processing Unit, graphics processor). The processor 44 may be an integrated circuit chip with signal and graphics processing capabilities. The processor 44 may also be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component . The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The battery 45 can provide electrical energy for the processor 44, the

cameras

14, 24, 32, and the first optical engine 43. It can be arranged inside the leg main body 41. In one embodiment, the battery 45 is a rechargeable lithium battery, which can be charged through a USB interface. In an embodiment, the battery 45 can also be replaced by an external power source.

Please refer to FIG. 1, FIG. 4, FIG. 8, and FIG. The second leg 50 is similar to the first leg 40 except that the second leg 50 is not provided with the processor 44 and the battery 45. Therefore, the second leg 50 is not described in detail here, and only the structure of the second leg 50 is listed. As for the specific structure and functional relationship of the second leg 50, please refer to the first leg 40. The second leg 50 may include a leg main body 51, a second pivotal portion 52 and a second optical engine 53. The second pivotal portion 52 is formed at the end of the leg main body 51 facing the mounting frame 21 for connecting with the first pivotal portion 211, so that the leg main body 51 rotates around the second pivotal portion 52 and moves toward the mounting frame. 11 Fold on one side. The second light machine 53 is used for projection of images in augmented reality or virtual reality equipment, and can be installed at a position of the leg main body 51 close to the second pivoting portion 52 and can be folded and stored with the leg main body 51. When the leg main body 51 is unfolded, its projection opening faces the incident surface 231 of the second light turning member 23, so that the second optical engine 53 and the second light turning member 23 form an optical path for light transmission. The second optical engine 53 can be connected to the battery 45 and the processor 44.

Understandably, for the names "first optical engine", "second optical engine" and "optical engine", this application is not limited to the limitation of the above-mentioned names, and names of similar structures can be interchanged according to actual conditions; for example, The "first optical engine" may also be referred to as the "second optical engine".

In an embodiment, electronic devices such as a battery 45 and a processor 44 may also be provided inside the leg main body 51.

In an embodiment, the second optical engine 53 may also be omitted from the second leg 50.

Please refer to FIG. 1, the first leg 40 and the second leg 50 are in an unfolded state. At this time, the first leg 40 and the second leg 50 can be erected on the wearer's ears, and the wearing body 300 can be erected in front of the user's eyes. , So that the first optical display element 10 is facing the wearer's left eye, and the second optical display element 20 is facing the wearer's right eye, and it can be used:

1 and 2, the first optical engine 43 projects light to the first light redirecting member 13. The light is redirected by the first light redirecting member 13, and is coupled from the light coupling inlet portion 121 into the first optical waveguide 12. The coupling exit portion 122 leads out the first optical waveguide 12, and shoots into the wearer's eyes and forms an image on the retina.

1 and 2, the second optical machine 53 projects light to the second light redirecting member 23, the light is redirected by the second light redirecting member 23, and is coupled from the light coupling inlet portion 221 into the second optical waveguide 22, and the light The coupling exit portion 222 leads out the second optical waveguide 22, and shoots into the wearer's eyes and forms an image on the retina.

When storing, the folding part 500 may be folded.

Referring to FIG. 12, the first leg 40 can be rotated to the side of the second leg 50 around the first pivoting portion 111 and the second pivoting portion 42, so that the leg main body 41 can be close to the mounting frame 11. , The first optical engine 43 will also move with the first leg 40. Since the projection port of the first optical engine 43 is facing the first light redirecting member 13, the first optical engine 43 rotates on the first leg 40. The thickness and width of the surface will be small, and the length of the first light engine 43 in the light projection direction is not on the surface where the first leg 40 rotates, so the first light engine 43 will not affect the rotation of the first leg 40 And close to the installation frame 11, so that the folding and storage of the first leg 40 can be completed.

Similarly, the second leg 50 can also rotate around the first pivot portion 211 and the second pivot portion 52 to one side of the first leg 40, so that the leg main body 51 can be close to the first leg 40. At this time, The second light engine 53 will also move with the second leg 50. Since the projection port of the second light engine 53 is facing the second light redirecting member 23, the second light engine 53 is on the surface where the second leg 50 rotates. The thickness and width of the upper part will be small, and the length of the second light machine 53 in the light projection direction is not on the surface on which the second leg 50 rotates, so the second light machine 53 will not affect the rotation of the second leg 50 and Close to the first leg 40, so that the second leg 50 can be folded and stored.

It is understandable that the folding sequence of the first leg 40 and the second leg 50 is in no particular order.

When removing the folded and stored head-mounted device 100 for wearing, you can directly install the above-mentioned process reverse operation, and then you can unfold the first leg 40 and the second leg 50, wear the head-mounted device 100 and use it.

The above are only examples of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.

Claims

A head-mounted device, characterized in that it comprises:

Wear the subject, including:

Optical display, used to display images;

The light turning member is arranged on the optical display member, and is used to receive the light signal of the image, turn the light signal of the image, and guide the light signal to the optical display member; and

The folding part is pivotally connected to the wearing main body so that the folding part can be rotatably close to the wearing main body. The light turning parts are arranged opposite to each other, so as to transmit the light signal of the image to the light turning parts.
The head-mounted device according to claim 1, wherein the optical display element comprises:

An optical waveguide, used for displaying the image, connected with the optical path of the light turning member to receive the light signal of the image after being turned by the light turning member; and

The mounting frame is fixed on the edge of the optical waveguide and is pivotally connected to the folding part, and the light turning member is mounted on the mounting frame.
The head-mounted device according to claim 2, wherein the optical waveguide comprises:

The light coupling inlet portion is arranged opposite to the light turning member to receive the light signal of the image derived from the light turning member; and

The light coupling exit part is an integral structure with the light coupling entrance part, and is used to derive the optical signal of the image.
3. The head-mounted device according to claim 3, wherein the mounting frame is provided with a mounting part near a position pivoted to the folding part to mount the light coupling inlet part and the light turning member.
The head-mounted device according to claim 3 or 4, wherein the light turning member comprises a reflective prism, the reflective prism is fixed on the mounting frame, and the reflective prism comprises:

The incident surface is used to allow the optical signal of the image emitted by the optical machine to enter the reflecting prism;

A reflecting surface for reflecting the optical signal of the image entering the reflecting prism; and

The exit surface is used for causing the light signal of the image reflected by the reflecting surface to pass through and lead to the light coupling inlet.
The head-mounted device according to claim 3 or 4, wherein the light turning member comprises a reflector, the reflector is fixed on the mounting frame, and the reflector comprises:

The reflecting surface is used to reflect the optical signal of the image emitted by the optical machine, so that the optical signal of the image is guided to the light coupling inlet.
The head-mounted device according to claim 2 or 4, wherein the folding portion includes a leg for wearing, and the leg is pivotally connected to the mounting frame so that the leg can rotate Close to the mounting frame, one end of the leg pivoted to the mounting frame is provided with the optical engine.
The head-mounted device according to claim 7, wherein the plane on which the leg rotates about its pivoted position with the mounting frame is in accordance with the direction in which the light steering member emits the optical signal of the image vertical.
The head-mounted device according to claim 8, wherein a battery and a processor are provided in the leg, the processor is electrically connected to the optoelectronic device, and the battery is connected to the processor and the processor, respectively. Describes the optical and electrical connection.
9. The head-mounted device according to claim 9, wherein a camera is provided on the mounting frame for acquiring the image; the camera is electrically connected to the battery and the processor, respectively.
A head-mounted device, characterized in that it comprises:

The first and second optical display elements are symmetrically arranged and used to display images;

The first and second light turning parts are used to receive the light signal of the image, and the first light turning part is arranged on the first optical display part, which is used to turn the light signal of the image and lead it to all The first optical display element, and the second optical display element is provided on the second optical display element for steering the optical signal of the image and guiding it to the second optical display element; and

The first and second legs are arranged symmetrically, and the first leg is pivotally connected to the first optical display member so that the first leg can be rotatably close to the first optical display member, and the first leg One end of one leg pivoted to the first optical display member is provided with a first optical engine, and the first optical engine is arranged opposite to the first light redirecting member, so as to emit the light to the first light redirecting member. The optical signal of the image; the second leg is pivotally connected to the second optical display member, so that the second leg can be rotatably close to the second optical display member, and the second leg and A second optical engine is provided at one end of the second optical display element which is pivotally connected, and the second optical engine is arranged opposite to the second light turning element, so as to transmit the optical signal of the image to the second light turning element .
The head-mounted device according to claim 11, wherein the first and second light turning elements, the first and second light turning elements are arranged on the first and second optical display elements Same side.
The head-mounted device according to claim 12, wherein the plane on which the first leg rotates about its pivotal position with the first optical display element is in line with the plane where the first light redirecting element emits The direction of the light signal of the image is vertical.
The head-mounted device according to claim 13, wherein the first optical machine is disposed between the first and second legs.
The head-mounted device according to claim 11, wherein the first and second optical display elements comprise:

A mounting frame, opposite ends of which are respectively pivotally connected to the first and second legs, and the first and second light redirecting members are mounted on the mounting frame; and

The first and second optical waveguides are symmetrically installed on the mounting frame, the first optical waveguide is connected to the optical path of the first light steering member, and the first optical waveguide is used to receive the light that passes through the first light steering member. The optical signal of the image after being turned by the object and displaying the image, the second optical waveguide is connected to the optical path of the second light steering member, and the second optical waveguide is used to receive the light signal passing through the second light steering member Turn the light signal of the image and display the image.
The head-mounted device according to claim 15, wherein the first optical waveguide comprises:

The light coupling inlet is arranged opposite to the first light turning member to receive the light signal of the image derived from the first light turning member; and

The light coupling exit part is an integral structure with the light coupling entrance part, and is used to derive the optical signal of the image.
The head-mounted device according to claim 16, wherein the first light turning member comprises a reflective prism, the reflective prism is fixed on the mounting frame, and the reflective prism comprises:

An incident surface, used for allowing the optical signal of the image emitted by the first optical machine to enter the reflecting prism;

A reflecting surface for reflecting the optical signal of the image entering the reflecting prism; and

The exit surface is used for causing the light signal of the image reflected by the reflecting surface to pass through and lead to the light coupling inlet.
The head-mounted device according to claim 16, wherein the first light turning member comprises a reflector, the reflector is fixed on the mounting frame, and the reflector comprises:

The reflecting surface is used to reflect the optical signal of the image emitted by the first optical machine, so that the optical signal of the image is guided to the light coupling inlet portion.
The head-mounted device according to claim 15, wherein a battery and a processor are arranged in the first leg, and the processor is electrically connected to the first optical machine and the second optical machine, The battery is electrically connected to the processor, the first optical machine, and the second optical machine, respectively.
The head-mounted device according to claim 19, wherein a camera is provided on the mounting frame for acquiring the image; the camera is electrically connected to the battery and the processor, respectively.