CN112147781A

CN112147781A - Wearable device

Info

Publication number: CN112147781A
Application number: CN201910576453.1A
Authority: CN
Inventors: 江超; 王锐添
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29

Abstract

The application discloses wearing equipment, wearing equipment includes: a first housing; the optical-mechanical module is arranged in the first shell and comprises a display screen and an optical component, and the display screen is used for displaying images; a projection lens detachably connected with the optical component, wherein the projection lens is used for projecting the image conducted by the optical component to the eyes of a wearer wearing the equipment; and the second shell is detachably connected with the first shell, and the second shell covers the projection lens. In the wearing equipment of this application embodiment, the second casing can be dismantled with first casing and be connected and the cover establishes the projection lens, and the projection lens can be dismantled with optical component and be connected, consequently, can be through dismantling the second casing in order to change the projection lens to satisfy user's different demands, improve user experience. In addition, wearing equipment module design, be convenient for maintain and production.

Description

Wearable device

Technical Field

The application relates to the technical field of display, in particular to wearable equipment.

Background

Augmented Reality (AR) is a new technology that integrates real world information and virtual world information. With the development of augmented reality technology, the technology is increasingly applied to the field of visual display, such as AR glasses (augmented reality device). The user can see the information which is formed into the virtual by simulating the entity information by utilizing the wearable display device, and the virtual information is applied to the real world. Wearable display devices include a projection lens for projecting a display image into a user's eye, however, the physical parameters of the projection lens are generally not adjustable and do not meet the user's different needs.

Disclosure of Invention

In view of this, this application provides a wearing equipment.

Wearing equipment of this application embodiment includes:

a first housing;

the optical-mechanical module is arranged in the first shell and comprises a display screen and an optical component, and the display screen is used for displaying images;

a projection lens removably coupled to the optical component for projecting the image conducted by the optical component to an eye of a wearer of the wearable device; and

and the second shell is detachably connected with the first shell, and the second shell covers the projection lens.

In the wearing equipment of this application embodiment, the second casing can be dismantled with first casing and be connected and the cover establishes the projection lens, and the projection lens can be dismantled with optical component and be connected, consequently, can be through dismantling the second casing in order to change the projection lens to satisfy user's different demands, improve user experience. In addition, wearing equipment module design, be convenient for maintain and production.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a wearable device according to an embodiment of the present application;

2-3 are exploded schematic views of a wearable device of an embodiment of the present application;

fig. 4 is a schematic structural view of an optical member and a projection lens of the wearable device according to the embodiment of the present application;

FIG. 5 is another exploded schematic view of a wearable device of an embodiment of the present application;

fig. 6 is a schematic sectional view of the wearable device of the embodiment of the present application at the second housing;

FIG. 7 is a schematic view of a wearable device according to an embodiment of the present application;

fig. 8 is a schematic structural view of a first electrochromic device of a wearable device of an embodiment of the present application;

fig. 9 is another perspective view of the wearable device of the present application;

fig. 10 is a schematic sectional view of the wearable device of the present application at the first housing;

fig. 11 is a schematic cross-sectional view of a wearable device of another embodiment of the present application at a first housing;

fig. 12 is a schematic sectional view of a wearable device of a further embodiment of the present application at a first housing.

Description of the main element symbols:

the display device comprises a wearable device 100, a first housing 10, a guide structure 11, a slot 111, a front surface 12, a through hole 13, a light-transmitting portion 14, an inner surface 15, a containing cavity 16, an optical module 20, a display 21, an optical component 22, a first magnetic component 23, a projection lens 30, a second magnetic component 31, a light-incident surface 32, a light-emitting surface 33, a side surface 34, a flange 35, a second housing 40, a notch 41, a containing cavity 42, a first side wall 43, a second side wall 44, a light-transmitting hole 442, a first antireflection film 45, a first electrochromic device 50, a first conductive layer 51, a second conductive layer 52, an electrochromic layer 53, an electrolyte layer 54, an ion storage layer 55, a sensor assembly 60, a second electrochromic device 70, a second antireflection film 80, a wearable component 90, a first bracket 92, a first bending portion 922, a second bracket 94, a second bending portion 942, and an elastic band 96.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a wearable device 100, and the wearable device 100 is, for example, a Head Mounted Display (HMD). The wearable device 100 can transmit optical signals to the eyes of the user after the user wears the wearable device 100 through the matching of the computing system and the optical system, so that different effects such as Virtual Reality (VR), Augmented Reality (AR), Mixed Reality (MR) and the like are achieved.

Referring to fig. 1, a wearable device 100 according to an embodiment of the present disclosure includes a first housing 10, an optical-mechanical module 20, a projection lens 30, and a second housing 40. The opto-mechanical module 20 is disposed in the first housing 10.

Referring to fig. 2 and fig. 3, the optical-mechanical module 20 includes a display screen 21 and an optical component 22, and the display screen 21 is used for displaying images. The projection lens 30 is removably attached to the optical component 22. The projection lens 30 is used to project the image conducted by the optical component 22 to the eye of the wearer wearing the device 100. The second housing 40 is detachably connected to the first housing 10, and the projection lens 30 is covered by the second housing 40.

In the wearable device 100 of the embodiment of the present application, the second housing 40 is detachably connected to the first housing 10 and covers the projection lens 30, and the projection lens 30 is detachably connected to the optical component 22, so that the second housing 40 can be detached to replace the projection lens 30, thereby satisfying different requirements of a user and improving user experience. In addition, the wearable device 100 is modular in design, facilitating maintenance and production.

Specifically, the projection lens 30 is, for example, a waveguide lens, which can totally reflect the light rays introduced by the optical component 22 to the eye of the wearer. The physical parameters of the projection lens 30 include size, weight, angle of view, light transmittance, resolution, and the like. Alternatively, the projection lens 30 may be replaced to change the physical parameters of the projection lens 30, such as size, weight, field angle, light transmittance, and resolution, so as to meet the user's needs.

In one example, the angle of view of the projection lens 30 can be made larger and the weight of the projection lens 30 can be made lighter by replacing the projection lens 30.

It can be understood that the wearable device 100 of the embodiment of the present application forms a modular design, that is, the projection lens 30 is easy to replace, so that the wearable device 100 with different configurations can be more easily produced in the process of producing the wearable device 100 to meet different requirements of users, thereby improving the production efficiency.

The number of the projection lens 30 may be one, or a combination of a plurality of lenses stacked together. The projection optics 30 may be a planar optic, a concave or convex optic, or a combination thereof.

Specifically, the first housing 10 and the second housing 40 are external components of the wearable device 100, and function to protect and fix internal components of the wearable device 100. The first casing 10 and/or the second casing 40 may enclose the internal components, so that direct damage to the internal components by external factors may be prevented.

In addition, the first housing 10 and/or the second housing 40 may be formed by machining an aluminum alloy through a Computer Numerical Control (CNC) machine, and may also be injection molded using Polycarbonate (PC) or PC and Acrylonitrile Butadiene Styrene (ABS). The specific manner of manufacturing and the specific material of the first casing 10 and/or the second casing 40 are not limited herein.

In the present embodiment, the first housing 10 is used to fix the optical-mechanical module 20, or the optical-mechanical module 20 is fixed in the first housing 10. The first housing 10 may be detachably connected to the second housing 40 by means of a snap, a screw and/or a magnetic attraction. The bottom of the second housing 40 is formed with a notch 41 at a middle position. Alternatively, the second housing 40 is substantially "B" shaped. When the user wears the wearable device 100, the wearable device 100 can be erected on the bridge of the nose of the user through the notch 41, so that the stability of the wearable device 100 can be guaranteed, and the wearing comfort of the user can be guaranteed.

As shown in fig. 2, the first housing 10 is formed with a guide structure 11 for guiding the projection lens 30 to be connected to the optical member 22. In this way, the guiding structure 11 can make the projection lens 30 more easily connected to the optical component 22, so that the optical component 22 can smoothly transmit the light generated by the display screen 21 to the projection lens 30.

Specifically, in one example, the guide structure 11 includes a slot 111 that mates with the projection lens 30, and the projection lens 30 is partially inserted into the slot 111. In this way, the slot 111 can limit the degree of freedom of the projection lens 30, so that the projection lens 30 can be connected with the optical component 22 quickly and accurately. It is noted that the slot 111 cooperates with the projection lens 30, that is, the slot 111 has substantially the same shape as the projection lens 30, and the cross-sectional size of the slot 111 is slightly larger than the size of the projection lens 30. For example, the cross-sectional shape of the insertion groove 111 and the cross-sectional shape of the projection lens 30 are both rectangular.

The optical module 20 is a core component of the wearable device 100, and the optical module 20 may have functions of modulating light, transmitting light, and the like. Specifically, the display screen 21 includes an OLED display screen. The OLED display does not need a backlight, which is advantageous for the light and thin of the wearable device 100. Moreover, the OLED screen has a large visual angle and low power consumption, and is favorable for saving the power consumption. Of course, the display screen 21 may also be an LED display screen or a Micro LED display screen. These display screens 21 are merely examples and embodiments of the present application are not limited thereto.

The optical member 22 may transmit light formed by the display screen 21. The optical member 22 may form total reflection to transmit light formed by the display screen 21. The optical member 22 may be made of glass, resin, or the like. The optical member 22 is located on one side of the display screen 21. In other words, the display screen 21 guides light into the optical member 22 from the side of the optical member 22.

In the present embodiment, the projection lens 30 is detachably connected to the optical member 22 by at least one of a magnetic attraction method and a snap method. Thus, the projection lens 30 and the optical member 22 are easily attached and detached, and the projection lens 30 is easily replaced.

Referring to fig. 3-4, in some embodiments, the optical component 22 is provided with a first magnetic member 23, the projection lens 30 is provided with a second magnetic member 31, and the first magnetic member 23 and the second magnetic member 31 are engaged with each other to detachably connect the optical component 22 and the projection lens 30.

It should be noted that the first magnetic member 23 is disposed outside the optical path of the optical component 22, and the second magnetic member 31 is disposed outside the optical path of the projection lens 30, which can prevent the first magnetic member 23 and the second magnetic member 31 from affecting the propagation of the light generated by the display screen 21.

In one example, the projection lens 30 includes an incident surface 32, an exit surface 33, and a side surface 34. The light incident surface 32 faces the optical component 22, the light emitting surface 33 is connected to the light incident surface 32, and the side surface 34 is connected to the light incident surface 32 and the light emitting surface 33. The side surface 34 is provided with a flange 35, and the second magnetic member 31 is fixed to the flange 35. In this way, the second magnetic member 31 does not interfere with the optical path of the projection lens 30, and thus does not affect the light generated by the display screen 21 and entering the eyes.

In the present embodiment, the number of the optical members 22 is one, the number of the projection lenses 30 is two, and the two projection lenses 30 are respectively disposed on opposite sides of the optical members 22. Thus, the two projection lenses 30 can correspond to two glasses of the user, so that the user can better receive the projected light, and the user experience is improved.

Referring to fig. 5-6, in the present embodiment, the second housing 40 is formed with two accommodating cavities 42 arranged in parallel, and each projection lens 30 is partially located in a corresponding accommodating cavity 42. Thus, the receiving cavity 42 can receive the projection lens 30, and prevent the projection lens 30 from being damaged.

Specifically, the second casing 40 includes a first side wall 43 and a second side wall 44, and the second side wall 44 is disposed opposite to the first side wall 43. Two accommodation cavities 42 are formed between the first side wall 43 and the second side wall 44, and the second side wall 44 is formed with a light-passing hole 442 communicating with the accommodation cavities 42, the light-passing hole 442 being used for allowing the image projected by the projection lens 30 to enter the eye. The light passing holes 442 may be square, circular, irregular, or the like.

Of course, when the second sidewall 44 is made of a light-transmitting material, the light-transmitting hole 442 may be omitted.

Referring to fig. 6 and 7, in some embodiments, the first sidewall 43 is made of a light-transmissive material, and the accommodating cavity 42 is provided with a first electrochromic device 50. The first electrochromic device 50 is located between the projection lens 30 and the first sidewall 43 and covers the projection lens 30. For example, the first electrochromic device 50 is disposed on the first sidewall 43. As another example, the first electrochromic device 50 is disposed on the projection lens 43. The first electrochromic device 50 is used to change its transmittance to filter ambient light entering the eye through the projection lens 30.

It is understood that the first electrochromic device 50 exhibits a stable, reversible color change under the influence of an applied electric field, which is visually represented by a reversible change in color and transparency. This enables the electrochromic element to realize a change in light transmittance.

In a related augmented reality device, a user can see content displayed by the augmented reality device in a real scene through the augmented reality device. It can be understood that the light formed by the ambient light and the augmented reality device enters human eyes at the same time, if the light brightness of the environment is higher, the contrast between the display brightness of the augmented reality device and the ambient brightness is too low, and the display content of the augmented reality device is difficult to see by the human eyes. If the light brightness of the environment is low, the contrast between the display brightness of the augmented reality device and the environment brightness is too high, and the display content of the virtual reality device easily stimulates people to cause eye fatigue.

In order to solve the problem that the contrast between the display brightness of the augmented reality device and the ambient brightness is too high or too low, the related art generally adjusts the display brightness of the augmented reality device. However, when the ambient brightness is high, if the display brightness of the augmented reality device is increased in order to improve the image clarity observed by human eyes, the power consumption of the augmented reality device is increased, and a large amount of heat is generated to affect the user experience.

Specifically, referring to fig. 8, the first electrochromic device 50 includes a first conductive layer 51, a second conductive layer 52, and an electrochromic layer 53, which are stacked, and the electrochromic layer 53 is disposed between the first conductive layer 51 and the second conductive layer 52. The first conductive layer 51 and the second conductive layer 52 are used in cooperation with applying a voltage to the electrochromic layer 53.

As such, the first and second

conductive layers

51 and 52 may supply a voltage to the electrochromic so that the transmittance of the electrochromic may be changed, thereby changing the transmittance of the electrochromic.

The first conductive layer 51 may be formed of Indium Tin Oxide (ITO) or nano silver. Thus, the first conductive layer 51 may have good conductivity and high transparency. According to an embodiment of the present invention, the sheet resistance of the first conductive layer 51 is less than Ω. Thus, the first conductive layer 51 has good conductive performance, and power consumption when the electrochromic function is used is reduced. When the coloration layer is formed by electropolymerization, first conductive layer 51 may be formed of ITO, and the sheet resistance may be less than 50 ohms, such as may be less than 30 ohms. And facilitates formation of a color-changing layer on the surface of first conductive layer 51 by electropolymerization.

In addition, the first conductive layer 51 has high transparency, and can better represent the color generated by the color changing layer. The first conductive layer 51 may be formed by physical vapor deposition. The features of the second conductive layer 52 are similar to those of the first conductive layer 51, and are not described again.

The electrochromic layer 53 may show different colors in different states (oxidized state, reduced state, neutral state), achieve different color changes, and obtain various appearance effects. The electrochromic layer 53 may be an organic electrochromic layer 53 that exhibits a variety of colors with high timeliness. A specific manner of forming the electrochromic layer 53 is not particularly limited, and may be formed by electropolymerization, for example.

The thickness of the electrochromic layer 53 is not particularly limited and may be selected by those skilled in the art according to actual needs. For example, the electrochromic layer 53 may have a thickness of less than 200 nm. Thereby, the color change effect is further improved. The color-changing layer may be an organic electrochromic layer 53, which exhibits various colors with high timeliness.

The material of the electrochromic layer 53 may be selected from one or more of tungsten oxide, molybdenum oxide, titanium oxide, prussian blue, polythiophene, viologen, etc., of course, the material of the electrochromic layer 53 is not only a single choice or a combination of several materials, but the electrochromic layer 53 may also be made of other materials in different situations. The specific material of the electrochromic layer 53 is not limited herein.

In the present embodiment, the first electrochromic device 50 includes the electrolyte layer 54 and the ion storage 55, and the electrolyte layer 54 and the ion storage 55 are sequentially stacked and disposed between the electrochromic layer 53 and the second conductive layer 52. In this manner, the electrolyte layer and the ion storage layer 55 can ensure that the electrochromic layer 53 can normally change the light transmittance.

The electrolyte is one of the important factors influencing the color change performance, cycle life and weather resistance of the device, and the main parameters are ionic conductivity, transparency, chemical, thermal and light stability and safety.

Electrolyte layer 54 may be either liquid or solid. Gel-like or solid polymer electrolytes are ion-conducting phases formed by dissolving salts in a polar polymer matrix. The gel or solid polymer electrolyte has good electrochemical stability, uses polymer solid as a supporting framework, has good plasticity, and can be mechanically processed.

In one example, electrolyte layer 54 may be formed from a gel-like material including a gel material, a plasticizer, conductive ions, and a solvent, and electrolyte layer 54 may be formed by silk gel printing or roll coating. The electrolyte layer 54 formed of the gel-like material has advantages of high stability, long life, and the like as compared with a liquid electrolyte, and does not cause undesirable phenomena such as bubbling or leakage of the electrolyte, so that the service life of the first electrochromic device 50 can be improved.

The ion storage layer 55 can store charges, and can store charges generated when the electrochromic layer 53 undergoes oxidation-reduction reaction, so as to maintain the charge balance of the entire first electrochromic device 50, and further improve the performance of the first electrochromic device 50.

The ion storage layer 55 includes one or more of nickel oxide NiO, polyaniline, and the like. It will be appreciated that the material of the ion storage layer 55 is not only a single selection or a plurality of combinations of the above materials, but that other material compositions may be used for the ion storage layer 55 in different cases. The specific material of the ion storage layer 55 is not limited herein.

The first electrochromic device 50 may be fixed to the first sidewall 43 or the projection lens 30 by optical glue. Preferably, the ambient brightness is inversely related to the transmittance of the first uniform color changing device. In this manner, the light transmittance of the first electrochromic device 50 is adjusted so that the user can clearly observe the contents displayed on the display screen 21, and the user is less fatigued.

It should be noted that a resilient metal point may be disposed between the first housing 10 and the second housing 20, so that the power source located in the first housing 10 supplies power to the first electrochromic device 50 through the resilient metal point.

In some embodiments, first sidewall 43 has a first antireflection coating 45 applied to its outer surface, as shown in FIG. 6. In this way, the first antireflection film 45 can not only protect the first electrochromic device 50, but also improve the overall appearance of the wearable device 100. The first antireflection film 45 may be made of calcium fluoride, which reduces reflection and improves light transmittance.

Referring to fig. 9 and 10, in the present embodiment, the wearable device 100 further includes a sensor assembly 60 and a second electrochromic device 70. The sensor assembly 60 is disposed in the first housing 10. The sensor assembly 60 is spaced apart from the opto-mechanical module 20. The second electrochromic device 70 is disposed in correspondence with the sensor assembly 60. The second electrochromic device 70 covers the sensor assembly 60, and the second electrochromic device 70 serves to change its light transmittance to shield or expose the sensor assembly 60.

Thus, the second electrochromic device can change the light transmittance thereof according to the state of the wearable device 100, thereby shielding or exposing the sensor assembly 60 and improving the appearance effect of the wearable device 100.

Specifically, the states of the wearable device 100 are, for example, an operating state and a non-operating state. When the wearable device 100 is in the working state, the wearable device 100 can present a picture for the user, play information such as video and audio, and perform the operation of the user. For example, the wearable device 100 may switch the display screen according to a user operation. In one example, if the sensor assembly 60 is turned on while the wearable device 100 is in the operating state, the light transmittance of the second electrochromic device 70 may be controlled to increase to expose the sensor assembly 60, thereby acquiring information external to the wearable device 100 or transmitting information to the outside of the wearable device 100. If the sensor assembly 60 is turned off, the light transmittance of the second electrochromic device 70 may be controlled to be lowered to shield the sensor assembly 60, thereby improving the appearance of the wearable device 100.

The sensor assembly 60 includes at least one of a camera module, a proximity sensor module, and a light sensor module. For example, the sensor assembly 60 includes a camera module, a proximity sensor module, or a light sensor module. As another example, the sensor assembly 60 includes a camera module and a proximity sensor module.

Specifically, the camera module includes, but is not limited to, a color camera, an infrared camera, a laser receiving camera, and a black and white camera. When the sensor assembly 60 includes a camera module, the wearable device 100 can photograph an object image using the camera module. When the camera module includes a laser receiving camera, the sensor assembly 60 includes a laser transmitter that is paired with the laser receiving camera.

The proximity sensor module includes infra-red transmitter and infrared receiver, and the cooperation of infra-red transmitter and infrared receiver can detect the distance between external object and the wearing equipment 100.

The light sensing module can be used for detecting the ambient brightness, and the wearable device 100 can display the image with the appropriate brightness according to the ambient brightness so as to improve the user experience.

The sensor assembly 60 may be directly provided on the first housing 10, or may be indirectly provided on the first housing 10. In one example, the sensor assembly 60 is disposed on the first housing 10 by a bracket, or the sensor assembly 60 is fixed on the bracket, which is fixed on the first housing 10. The number of the sensor units 60 may be one or plural. When the number of the sensor assemblies 60 is plural, a plurality of the sensor assemblies 60 may be respectively disposed at different positions of the first housing 10 as long as it is ensured that the sensor assemblies 60 do not interfere with the normal use of the user, as shown in fig. 1.

It is understood that the second electrochromic device 70 may have different light transmittances depending on different voltages applied. In addition, the second electrochromic device 70 may filter light of a predetermined color, for example, the second electrochromic device 70 may filter colored light such as blue light.

The second electrochromic device 70 is in the form of a sheet. The second electrochromic device 70 may be disposed on the first housing 10, on the sensor assembly 60, or between the first housing 10 and the sensor assembly 60. For example, the second electrochromic device 70 is also attached to the first housing 10 or the sensor assembly 60 by optical glue; also for example, the second electrochromic device 70 is disposed between the first housing 10 and the sensor assembly 60 through a transparent frame, and the second electrochromic device 70 has a gap between the sensor assembly 60 and the first housing 10.

The second electrochromic device 70 overlaying the sensor assembly 60 means that the orthographic projection of the sensor assembly 60 on the second electrochromic device 70 is located within the second electrochromic device 70. It should be noted that the structure of the second electrochromic device 70 is similar to the structure of the first electrochromic device 50, and please refer to the structure of the first electrochromic device 50 for the structure of the second electrochromic device 70, which is not described herein again.

As shown in fig. 10, in some embodiments, the first housing 10 includes a front surface 12, the front surface 12 is formed with a through hole 13 disposed corresponding to the sensor assembly 60, and the second electrochromic device 70 is attached to the front surface 12 and covers the through hole 13.

In this manner, the sensor assembly 60 can transmit signals to the outside and/or receive signals from the outside through the through hole 13. The second electrochromic device 70 may cover the through-hole 13 and cover the sensor assembly 60. It is understood that when the second electrochromic device 70 emits a signal to the outside, the signal passes through the via 13 and the second electrochromic device 70.

The through hole 13 may be a circular hole, an elliptical hole, a square hole, or the like, and the shape of the through hole 13 is not limited herein. It is noted that the first housing 10 comprises an inner surface 15 located opposite the front surface 12. The first housing 10 is formed with a housing chamber 16, and the inner surface 15 of the first housing 10 is a surface surrounding the housing chamber 16. The sensor assembly 60 and the opto-mechanical module 20 are both accommodated in the accommodating chamber 16.

Further, the sensor assembly 60 is at least partially located in the through hole 13. That is, the sensor assembly 60 may be partially located in the through hole 13 or may be entirely located in the through hole 13. In this way, the structure between the sensor assembly 60 and the first housing 10 is compact, and the volume of the wearable device 100 can be reduced.

Referring to fig. 11, in some embodiments, the first housing 10 includes a light-transmitting portion 14 corresponding to the sensor assembly 60, and a second electrochromic device 70 is attached to the front surface 12 of the light-transmitting portion 14. Alternatively, the first housing 10 is at least partially light-transmissive so that the sensor assembly 60 can transmit and receive signals to and from the outside. The light-transmitting portion 14 may be made of a light-transmitting material, for example, the light-transmitting portion 14 is made of a light-transmitting material such as acrylic. The cross section of the light-transmitting portion 14 may be square, circular, irregular, or the like. Note that the light-transmitting portion 14 may transmit visible light or may transmit invisible light. The first casing 10 may be transparent or non-transparent except for the transparent portion 14.

Referring to fig. 12, in some embodiments, the first housing 10 is a light-transmissive housing, and the second electrochromic device 70 is attached to and covers the front surface 12. Alternatively, the second electrochromic device 70 is disposed over the front surface 12 of the first housing 10. As such, the second electrochromic device 70 may not only cover the sensor assembly 60, but also enhance the appearance of the wearable device 100. For example, the second electrochromic device 70 may be controlled to present different colors to change the overall appearance of the wearable device 100 according to different needs. It is understood that the voltage of the second electrochromic device 70 may be changed to present different colors, for example, the second electrochromic device 70 may present green, red, blue or gradient colors, etc. to make the whole of the wearable device 100 present green, red, blue or gradient colors, etc.

It is noted that in fig. 12, the second electrochromic device 70 is shown attached to only a portion of the front surface 12 of the first housing 10 for ease of understanding.

Further, referring to fig. 12, the wearable device 100 includes a second antireflection film 80 laid on the second electrochromic device 70, and the second electrochromic device 70 is sandwiched between the front surface and the second antireflection film 80. In this way, the second antireflection film 80 can not only protect the second electrochromic device 70, but also improve the overall appearance of the wearable device 100. The second anti-reflection film 80 may be made of calcium fluoride, etc., and functions to reduce reflection and improve light transmittance.

In this embodiment, the wearable device 100 further includes a wearing member 90, and the wearing member 90 is connected to the first housing 10. The wearing part 90 is for wearing on the head of the user. In the example of fig. 9, wearing component 90 includes a first bracket 92, a second bracket 94, and an elastic band 96. The first bracket 92 and the second bracket 94 are symmetrically disposed about the notch 41. Specifically, the first and

second brackets

92 and 94 are rotatably provided at the edge of the first casing 10, and the first and

second brackets

92 and 94 can be stacked next to the first casing 10 for storage when the user does not need to use the wearable device 100. When the user needs to use the wearable device 100, the first stand 92 and the second stand 94 can be unfolded to perform the function of support of the first stand 92 and the second stand 94.

One end of the first bracket 92 away from the first housing 10 is formed with a first bending portion 922, and the first bending portion 922 bends toward the second housing 40. In this way, when the user wears the wearable device 100, the first bending part 922 may be erected on the ear of the user, so that the wearable device 100 is not easy to slip off.

Similarly, a second bending portion 942 is formed at an end of the second bracket 94 away from the first casing 10. The explanation and description of the second bending portion 942 may refer to the first bending portion 922, and are not repeated herein to avoid redundancy.

An elastic band 96 removably connects the first bracket 92 and the second bracket 94. In this way, when the user wears the wearable device 100 to perform strenuous activities, the wearable device 100 can be further fixed by the elastic band 96, and the wearable device 100 is prevented from loosening or even falling off during the strenuous activities. It is understood that in other examples, the elastic band 96 may be omitted.

In some embodiments, the first bracket 92 and the second bracket 94 in the example of fig. 9 may be replaced with elastic bands, as shown in fig. 1.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wearable device, comprising:

a first housing;

2. The wearable device according to claim 1, wherein the projection lens is detachably connected to the optical component by at least one of magnetic attraction and snap fit.

3. The wearable device according to claim 1, wherein a first magnetic member is disposed on the optical component, and a second magnetic member is disposed on the projection lens, and the first magnetic member and the second magnetic member are engaged with each other to detachably connect the optical component and the projection lens.

4. The wearing apparatus as claimed in claim 3, wherein the projection lens includes a light incident surface facing the optical component, a light emitting surface connected to the light incident surface, and a side surface connecting the light incident surface and the light emitting surface, the light emitting surface is configured to face the eye, the side surface is provided with a flange, and the second magnetic member is fixed to the flange.

5. The wearable device according to claim 1, wherein the first housing is formed with a guide structure that guides the projection lens to connect with the optical component.

6. The wearable device of claim 5, wherein the guide structure comprises a slot that mates with the projection lens, the projection lens partially inserted in the slot.

7. The wearing apparatus according to claim 1, wherein the number of the optical members is one, and the number of the projection lenses is two, and the two projection lenses are respectively disposed on opposite sides of the optical members.

8. The wearable device according to claim 7, wherein the second housing is formed with two housing cavities arranged side by side, each of the projecting lens portions being located in a corresponding one of the housing cavities.

9. The wearing device of claim 8, wherein the second housing includes a first side wall and a second side wall opposite to the first side wall, two receiving cavities are formed between the first side wall and the second side wall, and the second side wall is formed with a light-passing hole communicating with the receiving cavities, and the light-passing hole is used for allowing the image projected by the projection lens to enter the eye.

10. The wearable device of claim 9, wherein the first sidewall is made of a light-transmissive material, and a first electrochromic device is disposed in the accommodating cavity and located between the projection lens and the first sidewall and covering the projection lens, and the first electrochromic device is configured to change its transmittance to filter ambient light entering the eye through the projection lens.

11. The wearable device of claim 10, wherein the light transmittance of the first electrochromic device is inversely related to ambient brightness.

12. The wearable device according to claim 9, wherein an anti-reflection film is coated on an outer surface of the first side wall.

13. The wearable device according to claim 9, wherein the wearable device comprises:

the sensor assembly is arranged on the first shell and is arranged at an interval with the optical engine module; and

the second electrochromic device is arranged corresponding to the sensor assembly and covers the sensor assembly, and the second electrochromic device is used for changing the light transmittance of the second electrochromic device to shield or expose the sensor assembly.

14. The wearable device according to claim 13, wherein the first housing includes a front surface, the front surface is formed with a through hole corresponding to the sensor assembly, and the second electrochromic device is attached to the front surface and covers the through hole.

15. The wearable device according to claim 13, wherein the first housing includes a front surface, the first housing includes a light-transmissive portion disposed in correspondence with the sensor assembly, and the second electrochromic device is attached to the front surface of the light-transmissive portion.

16. The wearable device of claim 13, wherein the sensor assembly comprises at least one of a camera module, a proximity sensor module, and a light sensor module.