Eye movement detection assembly and wearable device
By integrating an eye-tracking detection component with a camera and compensation lens into a wearable device, the problem of eye-tracking cameras affecting appearance is solved, simplifying the structure and improving image quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
The inclusion of eye-tracking cameras in existing wearable devices affects their aesthetics and complicates their structure.
An eye-tracking detection component integrating a camera and a compensation lens is used. The camera and compensation lens are located on the second side of the lens assembly. The compensation lens is used to compensate for the optical power of the lens assembly, so as to avoid the influence of the optical power of the lens on the imaging quality of the camera.
It simplifies the structure of wearable devices, improves their aesthetics, and enhances the image quality of cameras.
Smart Images
Figure CN224190475U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of smart wearable device technology, specifically relating to an eye-tracking detection device and a wearable device. Background Technology
[0002] As users increasingly demand the best user experience, their requirements for the performance of wearable devices such as smart glasses and smart bracelets are also rising, leading to a proliferation of functionalities. For example, smart glasses, a common type of wearable device, can be equipped with eye-tracking cameras to capture the user's eye position on the display and use this information to control the glasses, further enhancing ease of use and user experience.
[0003] In existing technologies, eye-tracking cameras in smart glasses are typically located outside the lens module. This not only requires a dedicated area on the smart glasses to house the eye-tracking camera, significantly impacting the glasses' structure, but also means the eye-tracking camera is usually directly visible from the outside of the glasses, severely affecting their aesthetic appeal. Utility Model Content
[0004] This application aims to provide an eye-tracking detection component and a wearable device to solve the problem that the appearance of existing wearable devices with eye-tracking cameras is affected.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows:
[0006] In a first aspect, this application discloses an eye-tracking detection component, including a lens assembly, a camera, and a compensation lens:
[0007] The lens assembly includes at least one first lens spaced apart along a first direction; the lens assembly has a first side and a second side disposed opposite to each other, the first side being the incident light side;
[0008] The camera includes a lens assembly and an image sensor. The lens assembly includes at least one second lens spaced apart along the first direction. The camera and the compensation lens are disposed on the second side of at least one first lens.
[0009] The compensation lens is disposed between the image sensor and the first lens to compensate for the optical power of at least one of the first lenses in the lens assembly.
[0010] Secondly, this application also discloses a wearable device, which includes: the eye-tracking detection component described in any of the above claims.
[0011] In this embodiment, the eye-tracking detection component integrates a camera. When the eye-tracking detection component is used in a wearable device, the operation of additionally setting up a camera in the wearable device can be avoided. This not only simplifies the structure of the wearable device but also improves its aesthetic appearance. Furthermore, since the eye-tracking detection component includes a compensation lens, the compensation lens can be used to compensate for the optical power of at least one first lens in the lens assembly, preventing the optical power of the first lens in the lens assembly from affecting the imaging quality of the camera. This ensures that light projected onto the camera from different angles on the first side of the eye-tracking detection component can be focused on the camera, thereby improving the imaging quality of the camera.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0014] Figure 1 This is a schematic diagram of the structure of the eye-tracking detection component described in the embodiments of this application;
[0015] Figure 2 yes Figure 1 A schematic diagram of a partial structure of the eye-tracking detection component is shown.
[0016] Figure 3 yes Figure 2 A schematic diagram of the camera structure of the eye detection component shown;
[0017] Figure 4 This is a schematic diagram of another eye-tracking detection component described in an embodiment of this application;
[0018] Figure 5 yes Figure 4 A schematic diagram of the camera structure of the eye-tracking detection component shown;
[0019] Figure 6 This is a schematic diagram of the structure of another eye-tracking detection component described in an embodiment of this application;
[0020] Figure 7 This is a schematic diagram of the structure of a wearable device according to an embodiment of this application;
[0021] Figure 8 This is a clarity effect diagram of the image acquired by the eye-tracking detection component described in the embodiments of this application without the addition of compensation lenses;
[0022] Figure 9 This is a clarity effect diagram of the image acquired by the eye-tracking detection component described in the embodiments of this application when a compensation lens is provided.
[0023] Reference numerals: 100 - Eye-tracking detection component, 1 - Lens assembly, 10 - First support, 11 - First lens, 2 - Camera, 21 - Camera lens group, 22 - Color filter, 23 - Image sensor, 24 - Second support, 3 - Compensation lens, 4 - Display screen, 5 - Frame, X - First direction, A - First side, B - Second side. Detailed Implementation
[0024] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0025] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] This application provides an eye-tracking detection component, which can be specifically applied to extended reality (XR) wearable devices. The wearable device may include, but is not limited to, at least one of virtual reality (VR) wearable devices, augmented reality (AR) wearable devices, and mixed reality (MR) wearable devices. For example, the XR wearable device may include, but is not limited to, smart glasses, smart bracelets, smart helmets, etc. This application embodiment only uses smart glasses as an example of an XR wearable device for illustration; other types of wearable devices can be described by analogy.
[0029] Reference Figure 1 The diagram shows a schematic representation of the eye-tracking detection component described in an embodiment of this application. Figure 1 As shown, the eye-tracking detection assembly 100 specifically includes a lens assembly 1, a camera 2, and a compensation lens 3. The lens assembly 1 may include at least one first lens 11 spaced apart along a first direction X. The lens assembly 1 has a first side A and a second side B disposed opposite to each other, with the first side A being the light-incident side. The camera 2 may include a lens assembly 20 and an image sensor 23. The lens assembly 20 may include at least one second lens 21 spaced apart along the first direction X. The camera 2 and the compensation lens 3 are disposed on the second side B of at least one first lens 11. The compensation lens 3 is disposed between the image sensor 23 and the first lens 11 to compensate for the optical power of at least one first lens 11 in the lens assembly 1.
[0030] Specifically, the eye-tracking detection component 100 can be used in wearable devices. The camera 2 in the eye-tracking detection component 100 can be an eye-tracking camera, which can be used to acquire the human eye image on the first side A of the observation lens component 1 to determine the display position seen by the user's eyes, and thereby control the wearable device.
[0031] In this embodiment, the eye-tracking detection component 100 integrates a camera 2. When the eye-tracking detection component is used in a wearable device, the operation of additionally setting up a camera 2 in the wearable device can be avoided. This not only simplifies the structure of the wearable device but also improves its aesthetic appearance. Furthermore, since the eye-tracking detection component 100 is provided with a compensation lens 3, the compensation lens 3 can be used to compensate for the optical power of at least one first lens 11 of the lens assembly 1, preventing the optical power of the first lens 11 in the lens assembly 1 from affecting the imaging quality of the camera 2. This ensures that light projected onto the camera 2 from different angles from the first side A of the eye-tracking detection component 100 can be focused on the camera 2, thereby improving the imaging quality of the camera 2.
[0032] like Figure 1 As shown, during the process of camera 2 acquiring the image of the user's eye located on the first side A, light from the first side A may be projected onto camera 2 from different angles through lens assembly 1. During the process of light passing through lens assembly 1, the first lens 11 in lens assembly 1 may cause changes in the light, resulting in distortion or image quality loss in the image formed by the light projected onto camera 2, thereby affecting the imaging quality of camera 2.
[0033] In this embodiment, a compensation lens 3 can be provided between the image sensor 23 of the camera 2 and the first lens 11. The compensation lens 3 can be used to compensate for the optical power of the first lens 11 of the lens assembly 1. In this way, the light rays exiting the lens assembly 1 can be corrected and compensated by the compensation lens 3 before entering the camera 2 and being focused on the camera 2 to obtain a high-quality image. This can greatly improve the distortion of the light rays and significantly enhance the imaging quality of the camera 2.
[0034] In some alternative embodiments of this application, such as Figure 1 As shown, the compensation lens 3 is independently disposed on the outside of the camera 2, and is located between the lens assembly 20 and the first lens 11. In this way, the light projected from the first lens 11 can be compensated for optical power by the compensation lens 3 before entering the camera 2, so that the light can be focused on the image sensor 23 of the camera 2.
[0035] In practical applications, by independently setting the compensation lens 3 on the outside of the camera 2 and placing the compensation lens 3 between the lens assembly 20 and the first lens 11 of the lens assembly 1, it is possible to avoid structural modifications to the existing camera 2 and lens assembly 1. Moreover, it is also beneficial to flexibly arrange the position of the compensation lens 3, thereby making the overall solution easy to implement.
[0036] Reference Figure 2, showed Figure 1 The schematic diagram of a partial structure of the eye-tracking detection component shown is for reference only. Figure 3 , showed Figure 2 The diagram shows the structure of the camera in the eye detection component. Figure 2 , Figure 3 As shown, the camera 2 may specifically include a second lens 21, a color filter 22, and an image sensor 23 arranged sequentially, wherein the camera lens group 21 is arranged close to the compensation lens 3. The light projected from the compensation lens 3 can pass through the camera lens group 21 and the color filter 22 in sequence, and finally be projected onto the image sensor 23 and focused into an image on the image sensor 23.
[0037] like Figure 2 , Figure 3 As shown, due to the optical power compensation effect of the compensation lens 3, the light that is finally projected onto the image sensor 23 through the compensation lens 3 can be well focused, and the image sensor 23 can form a high-quality image accordingly.
[0038] Reference Figure 4 This shows a schematic diagram of another eye-tracking detection component according to an embodiment of this application, such as... Figure 4 As shown, the compensation lens 3 is disposed on the camera 2, on the light-incident side of the lens assembly 20, and located between the lens assembly 20 and the first lens 11.
[0039] In practical applications, by placing the compensation lens 3 on the light-incident side of the lens assembly 20, and between the lens assembly 20 and the first lens 11, the light projected from the first lens 11 must be compensated by the compensation lens 3 on the light-incident side of the lens assembly 20 before entering the lens assembly 20. In this way, the light can be compensated by the compensation lens 3 before entering the camera 2, allowing the light to be focused on the image sensor 23 of the camera 2.
[0040] In practical applications, by placing the compensation lens 3 on the light-incident side of the camera 2, the compensation lens 3 and the camera 2 can be integrated, avoiding the need to separately fix the camera 2 and the compensation lens 3. This simplifies the connection operation between the camera 2 and the compensation lens 3, thereby simplifying the assembly operation of the eye-tracking detection component.
[0041] Optionally, such as Figure 1 and Figure 4As shown, the camera 2 and the compensation lens 3 are located on the second side B of the lens assembly 1. Thus, light rays exiting from the second side B of the lens assembly 1 pass directly through the compensation lens 3 before entering the camera 2 and being focused on. This minimizes the impact of the camera 2 and compensation lens 3 on the optical path of the lens assembly 1, thereby reducing the influence of the camera 2 on the imaging of the lens assembly 1 itself.
[0042] Reference Figure 5 , showed Figure 4 The diagram shows the structure of the camera in the eye-tracking detection component. Figure 5 As shown, the lens assembly 20 may further include a second bracket 24, which is fitted over the second lens 21 to support it. When the compensating lens 3 is located on the camera 2, the compensating lens 3 is connected to the second bracket 24. This avoids the need for additional components to fix and support the compensating lens 3, thereby improving the integration of the camera 2 and reducing its size. For example, the second bracket 24 may be the lens barrel of the camera 2.
[0043] Reference Figure 6 This shows a schematic diagram of the structure of another eye-tracking detection component according to an embodiment of this application, such as... Figure 6 As shown, the lens assembly 1 may include a plurality of first lenses 11 spaced apart along a first direction X, with the camera 2 and the compensation lens 3 disposed between two adjacent first lenses 11. In specific applications, by placing the camera 2 and the compensation lens 3 between two first lenses 11, the exposure of the camera 2 and the compensation lens 3 can be further avoided from affecting the appearance of the eye-tracking detection assembly.
[0044] like Figure 6 As shown, the lens assembly 1 may further include a first bracket 10, which is sleeved on the outside of the first lens 11 to support the first lens 11. When the compensating lens 3 is independently positioned on the outside of the camera 2, the compensating lens 3 is connected to the first bracket 10 to support the camera 2 and the compensating lens 3. Specifically, the first bracket 10 may include a lens barrel. By fixing the camera 2 and the compensating lens 3 to the lens barrel, the camera 2 and the compensating lens 3 can also be fixed to the edge of the lens assembly 1 to reduce the impact of the camera 2 and the compensating lens 3 on the optical path of the lens assembly 1 itself.
[0045] For example, the camera 2 and the compensation lens 3 can be connected to the first bracket 10 by means of bonding, snap-fitting or fastener connection. In this embodiment of the application, the connection method of the camera 2 and the compensation lens 3 on the first bracket 11 is not specifically limited.
[0046] It should be noted that in specific applications, only the camera 2 can be connected to the first bracket 10, or only the compensation lens 3 can be connected to the first bracket 10, or both the camera 2 and the compensation lens 3 can be connected to the first bracket 10. This application embodiment does not limit this.
[0047] In some optional embodiments of this application, the sum of the optical powers of at least one first lens 11 located on the first side (A) of the image sensor 23 is the first optical power, the optical power of the compensation lens 3 is the second optical power, and the sum of the first optical power and the second optical power is in the range of -0.02 to 0.02.
[0048] Specifically, the lens assembly 1 can be used for light propagation within the lens module itself. The lens assembly 1 can be configured with one or more first lenses 11 as needed. When a first lens 11 is positioned near the first side A of the camera 2, during the transmission of light from the first side A of the lens assembly 1 to the camera 2, the light will sequentially pass through the first lens 11 near the first side A of the camera 2, and then through the compensation lens 3 before entering the camera 2. That is, during this light propagation process, only the first lens 11 located on the first side A of the image sensor 23 will cause image quality distortion or loss in the camera 2. Therefore, the compensation lens 3 only needs to compensate for the optical power of the first lens 11 on the first side A of the image sensor 23.
[0049] In practical applications, the reciprocal of a lens's focal length is called its optical power. Optical power is a physical quantity that reflects a lens's refractive ability. The optical power of a lens is the reciprocal of its focal length, specifically 1 / f, where f is the focal length. The optical power of a convex lens is positive, while that of a concave lens is negative. Typically, when the camera 2 is positioned outside the lens assembly 1, light from the user's eye on the first side A can be directly projected onto the camera 2 and focused into an image simply by passing through the air. Therefore, the optical power of the air is usually 0, meaning the optical power of the medium through which the light passes is 0.
[0050] In this embodiment, since light rays project from the user's eye on the first side A to the camera 2 need to pass through at least one first lens 11 and a compensation lens 3, in order for the light rays to be focused and imaged on the camera 2, the sum of the optical powers of the media through which the light rays pass can be close to or equal to zero. That is, the sum of the optical powers of the first lens 11 on the first side A of the image sensor 23 (first optical power) and the sum of the optical powers of the compensation lens 3 (second optical power) should be close to zero. In specific applications, to improve feasibility, a certain tolerance can be provided, i.e., the sum of the first optical power and the second optical power can be 0 ± 0.02.
[0051] Optionally, in order to further improve the focusing ability of light on camera 2 and further improve the imaging quality of camera 2, the sum of the first optical power and the second optical power can be 0±0.01.
[0052] For example, such as Figure 1 As shown, when there are two first lenses 11 on the first side A of the image sensor 23, and the designed optical power of the left first lens 11 in air is 0.0047639, and the designed optical power of the right first lens 11 in air is also 0.0047639, the optical power of the compensation lens 3 can be -0.011532. Specifically, the parameter values of the left first lens 11, the right first lens 11, and the compensation lens 3 are shown in the table below:
[0053] Table 1. Parameter values of the first lens
[0054] radius of curvature Material Optical power First lens on the left 349 APEL5013VH 0.004764 Right first lens 406 APEL5013VH 0.007219 Compensation lenses -45 E48R -0.01153
[0055] The sum of the optical power of the two first lenses 11 and the compensation lens 3 is calculated to be 0.0004509, which meets the above range limit. That is, the sum of the first optical power and the second optical power is close to 0, the light refraction ability is weak, and it is close to the effect of external eye-tracking camera 2 (without the influence of lens optical power).
[0056] Figure 8 This is a clarity effect diagram of the image acquired by the eye-tracking detection component described in the embodiments of this application without the addition of compensation lenses. Figure 9 This is a clarity effect diagram of the image acquired by the eye-tracking detection component described in the embodiments of this application when a compensation lens is provided. It should be noted that... Figure 8 and Figure 9 The graph is generated using the optical simulation software Zemax. The horizontal axis represents the Y-field in millimeters, indicating the Y-direction field of view coordinates in millimeters. The vertical axis represents the Modulation of the OTF (Optical Target Data), indicating lens sharpness; the value ranges between 0 and 1, with smaller values indicating lower sharpness and larger values indicating higher sharpness. Figure 8 and Figure 9 Yes, the sharpness graph can represent the magnitude of the sharpness value at different coordinate positions in the Y-direction field of view.
[0057] Specifically, sharpness in each field of view has two directions: T and S. For example... Figure 8 As shown, in the eye-tracking detection component described in this embodiment, without the compensation lens 3, the overall sharpness of the image acquired by the camera 2 deviates due to the lack of optical power compensation, and the sharpness differences in the T and S directions are also large in each field of view. Figure 9As shown, because a compensation lens 3 is provided in the eye-tracking detection assembly, the compensation lens 3 can compensate for the optical power. Light from different fields of view can be focused on the image sensor 23 after passing through all the lenses and entering the camera 2, thus improving image quality. Figure 9 As shown, the image sharpness acquired by camera 2 has sharpness in both the T and S directions under each field of view. After adding the compensation lens 3, the overall sharpness of different fields of view has been significantly improved, and the difference in sharpness in the T and S directions of different fields of view has become smaller, resulting in a significant improvement in image quality.
[0058] Experimental data show that when the sum of the first optical power and the second optical power is 0±0.02, the image sharpness MTF, field curvature and distortion of camera 2 can meet the requirements at each field of view.
[0059] In some optional embodiments of this application, the compensation lens 3 covers at least the field of view of the camera 2, so that light entering the camera 2 from different field of view angles needs to be compensated for in terms of optical power by the compensation lens 3. In this way, the imaging quality of the camera 2 can be further improved.
[0060] It should be noted that, due to the certain optical power of the compensating lens 3, it has the function of changing the optical path. In order to minimize the impact of the compensating lens 3 on the original optical path of the lens assembly 1, the size of the compensating lens 3 should be as small as possible, provided that the compensating lens 3 can cover the field of view of the camera 2.
[0061] Optionally, the compensation lens 3 may include at least one of spherical lenses, aspherical lenses, convex lenses, concave lenses, and freeform lenses.
[0062] It should be noted that since the compensating lens 3 needs to compensate for the optical power of the lens assembly 1, the optical power of the compensating lens 3 needs to be determined based on the optical power of the lens assembly 1. Accordingly, the type of the compensating lens 3 needs to be determined by the required optical power. Therefore, in actual operation, the compensating lens 3 can be selected from any one of spherical lenses, aspherical lenses, convex lenses, concave lenses, and freeform lenses as needed. This application embodiment does not specifically limit the type of the compensating lens 3.
[0063] In summary, the eye-tracking detection component described in the embodiments of this application may include at least the following advantages:
[0064] In this embodiment, the eye-tracking detection component integrates a camera. When the eye-tracking detection component is used in a wearable device, the operation of additionally setting up a camera in the wearable device can be avoided. This not only simplifies the structure of the wearable device but also improves its aesthetic appearance. Furthermore, since the eye-tracking detection component includes a compensation lens, the compensation lens can be used to compensate for the optical power of at least one first lens in the lens assembly, preventing the optical power of the first lens in the lens assembly from affecting the imaging quality of the camera. This ensures that light projected onto the camera from different angles on the first side of the eye-tracking detection component can be focused on the camera, thereby improving the imaging quality of the camera.
[0065] This application also provides a wearable device, which may specifically include the eye-tracking detection component described in any of the above embodiments. Since the eye-tracking detection component integrates a camera, the operation of additionally setting up a camera in the eye-tracking detection component can be avoided. This not only simplifies the structure of the eye-tracking detection component but also improves its aesthetic appearance. Furthermore, since the eye-tracking detection component includes a compensation lens, the compensation lens can be used to compensate for the optical power of the lens assembly, preventing the optical power of the lens assembly from affecting the imaging quality of the camera. This ensures that light projected onto the camera from different angles on the first side of the eye-tracking detection component can be focused on the camera, thereby improving the imaging quality of the camera.
[0066] It should be noted that, in specific applications, the structure of the eye-tracking detection component of the wearable device is the same as that of the eye-tracking detection component described in any of the above embodiments, and its beneficial effects are also similar, so it will not be elaborated here.
[0067] like Figure 7 As shown, a schematic diagram of the structure of a wearable device according to an embodiment of this application is illustrated. Figure 7 As shown, the wearable device also includes a frame 5 and a display screen 4. Both the eye-tracking detection component 100 and the display screen 4 are connected to the frame 5, with the display screen 4 located on the second side B of the eye-tracking detection component 100. The camera 2 in the eye-tracking detection component 100 is connected to the frame 5 and located at the edge of the display screen 4. In practical applications, by connecting the camera 2 to the display screen 4, the camera 2 can avoid occupying additional space on the support, thus further reducing the overall size of the lens module.
[0068] Optionally, the camera 2 is connected to the edge of the display screen 4. Specifically, the camera 2 is opposite to the non-display area of the display screen 4, or the camera 2 and the display screen 4 do not overlap, so as to avoid the camera 2 affecting the display effect of the display screen 4.
[0069] For example, the camera 2 can be connected to the frame 5 by means of bonding, snap-fitting or fastener connection. This application embodiment does not specifically limit the connection method of the camera 2 on the frame 5.
[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0071] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An eye-tracking detection component, characterized in that, It includes a lens assembly (1), a camera (2), and a compensating lens (3); The lens assembly (1) includes at least one first lens (11) spaced apart along a first direction (X); the lens assembly (1) has a first side (A) and a second side (B) disposed opposite to each other, the first side (A) being the light-incident side; The camera (2) includes a lens assembly (20) and an image sensor (23). The lens assembly (20) includes at least one second lens (21) spaced apart along the first direction (X). The camera (2) and the compensation lens (3) are disposed on the second side (B) of at least one first lens (11). The compensation lens (3) is disposed between the image sensor (23) and the first lens (11) for compensating the optical power of at least one of the first lenses (11) of the lens assembly (1).
2. The eye-tracking detection component according to claim 1, characterized in that, The compensation lens (3) is independently disposed on the outside of the camera (2), and the compensation lens (3) is disposed between the lens assembly (20) and the first lens (11).
3. The eye-tracking detection component according to claim 1, characterized in that, The compensation lens (3) is disposed on the camera (2), and the compensation lens (3) is disposed on the light-incident side of the lens assembly (20) and located between the lens assembly (20) and the first lens (11).
4. The eye-tracking detection component according to any one of claims 1 to 3, characterized in that, The camera (2) and the compensation lens (3) are located on the second side (B) of the lens assembly (1).
5. The eye-tracking detection component according to any one of claims 1 to 3, characterized in that, The lens assembly (1) includes a plurality of first lenses (11) spaced apart along the first direction (X), and the camera (2) and the compensation lens (3) are disposed between two adjacent first lenses (11).
6. The eye movement detection assembly of claim 2, wherein, The lens assembly (1) further includes a first bracket (10), which is sleeved on the outside of the first lens (11) to support the first lens (11); When the compensation lens (3) is independently disposed on the outside of the camera (2), the compensation lens (3) is connected to the first bracket (10).
7. The eye movement detection assembly of claim 3, wherein, The lens assembly (20) further includes a second bracket (24), which is sleeved over the second lens (21) to support the second lens (21); When the compensation lens (3) is provided on the camera (2), the compensation lens (3) is connected to the second bracket (24).
8. The eye movement detection assembly of any one of claims 1 to 3, wherein, The lens assembly (1) further includes a first bracket (10), which is sleeved on the outside of the first lens (11) to support the first lens (11), and the camera (2) is connected to the first bracket (10).
9. The eye-tracking detection component according to claims 1 to 3, characterized in that, The sum of the optical power of at least one of the first lenses (11) located on the first side (A) of the image sensor (23) is the first optical power, and the optical power of the compensation lens (3) is the second optical power. The sum of the first optical power and the second optical power is in the range of -0.02 to 0.
02.
10. The eye-tracking detection component according to claims 1 to 3, characterized in that, The sum of the optical power of at least one of the first lenses (11) located on the first side (A) of the image sensor (23) is the first optical power, and the optical power of the compensation lens (3) is the second optical power. The sum of the first optical power and the second optical power is in the range of -0.01 to 0.
01.
11. A wearable device, comprising: The wearable device includes: the eye movement detection component (100) according to any one of claims 1 to 10.
12. The wearable device according to claim 11, characterized in that, The wearable device further includes a frame (5) and a display screen (4), wherein the eye-tracking detection component (100) and the display screen (4) are both connected to the frame (5), and the display screen (4) is located on the second side of the eye-tracking detection component (100); wherein, The camera (2) in the eye-tracking detection assembly (100) is connected to the frame (5) and located at the edge of the display screen (4).