Eye detection device and end cover thereof

Abstract

The utility model discloses an eye detection device and an end cover thereof. The end cover comprises a cover body which comprises a first surface and a second surface which are oppositely arranged in the thickness direction of the cover body; the first mounting part is arranged on the cover body and can be used for mounting a signal transmitter, the first mounting part penetrates through the cover body in the thickness direction and forms a first opening in the first surface, and the first opening is opened on the outer side of the first surface in the thickness direction; the second mounting part is arranged on the cover body and can be used for mounting the first signal receiver, and the second mounting part is positioned on at least one side of the first mounting part along the first direction; the second installation part comprises a first shielding cover protruding out of the first surface, the outer surface of the first shielding cover can absorb signals emitted by the signal emitter, and a second opening is formed in the side, away from the first installation part, of the first shielding cover. Therefore, signals reflected by the face of the user can be directionally received, spurious signals, diffuse reflection signals and direct signals are shielded, and the accuracy of recognizing the left eye and the right eye by the eye detection device is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of ophthalmic equipment, and in particular, relates to an eye detection device and an end cover thereof. Background Art

[0002] As people pay more and more attention to eye health, more and more eye detection devices have emerged, such as tonometers for detecting intraocular pressure. Such eye detection devices usually detect the left and right eyes of the user separately, but cannot automatically distinguish between the left and right eyes, which makes it inconvenient to track, record and analyze the detection data.

[0003] To this end, some existing eye detection devices are equipped with a signal transmitter and a signal receiver, and use the signal receiver to receive the light reflected from the user's face, and automatically identify the left and right eyes through the difference in reflected light intensity received by the signal receiver during left and right eye detection. However, the light emitted by the signal transmitter may enter the signal receiver directly or enter the signal receiver through diffuse reflection or refraction, and the signal receiver is greatly disturbed by the surrounding ambient light, which is easy to cause misjudgment and affect the accuracy of the detection results and medical diagnosis. Utility Model Content

[0004] The embodiment of the present application provides an eye detection device and an end cover thereof to improve the accuracy of left and right eye recognition.

[0005] According to the first aspect of the present application, the present application provides an end cover for an eye detection device, comprising: a cover body, comprising a first surface and a second surface arranged opposite to each other along its own thickness direction; a first mounting portion, provided on the cover body and capable of installing a signal transmitter, the first mounting portion passes through the cover body along the thickness direction, and forms a first opening on the first surface, the first opening is open to the outside of the first surface along the thickness direction; and a second mounting portion, provided on the cover body and capable of installing a first signal receiver, the second mounting portion is located on at least one side of the first mounting portion along the first direction, and the first direction and the thickness direction intersect; the second mounting portion comprises a first shielding cover protruding from the first surface, the first shielding cover can absorb the signal transmitted by the signal transmitter, and a second opening is provided on the side of the first shielding cover facing away from the first mounting portion.

[0006] In some embodiments, the end cap further includes: a first protrusion adjacent to one side of the first mounting portion along the second direction, the first direction, the second direction and the thickness direction intersect each other; at least a portion of the first protrusion protrudes from the first surface, and the first protrusion can absorb the signal emitted by the signal transmitter.

[0007] In some embodiments, along the direction perpendicular to the thickness direction, the cross-section of the first protrusion is a first circular ring, and the cross-section of the first mounting portion is a second circular ring; the first outer circle of the first circular ring and the second outer circle of the second circular ring are tangent to each other; or, the first outer circle of the first circular ring and the second outer circle of the second circular ring intersect, the radius of the first outer circle is r1, the radius of the second outer circle is r2, the ring width of the first circular ring is d1, and the center distance between the first outer circle and the second outer circle is d2, wherein r1, r2, d1 and d2 satisfy: 0<(r1+r2-d2)<d1 / 2.

[0008] In some embodiments, a second protrusion is provided on the cover body, at least part of the second protrusion protrudes from the first surface, the second protrusion is located on a side of the first mounting portion away from the first protrusion along the first direction, and the second protrusion can absorb the signal transmitted by the signal transmitter; in the second direction, the second mounting portion is located between the first protrusion and the second protrusion.

[0009] In some embodiments, the end cover further has one or more of the following features: the cover body includes a first part and a second part surrounding the first part; the first protrusion, the first mounting part and the second mounting part are all arranged on the first part and are an integrally formed structure with the first part; the cover body includes a recessed part, which corresponds to the second mounting part along the thickness direction and is recessed from the second surface to the first surface; the cover body includes a longitudinal axis extending along the second direction, the centers of the first protrusion and the first mounting part are both on the longitudinal axis, and the plane where the second opening is located is parallel to the longitudinal axis.

[0010] In some embodiments, the cover body is also provided with a third mounting portion capable of mounting a second signal receiver, and in the first direction, the third mounting portion is located between the first mounting portion and the second mounting portion; the third mounting portion includes a second shielding cover protruding from the first surface, the second shielding cover can absorb the signal transmitted by the signal transmitter, and the second shielding cover is provided with a third opening, the third opening is away from the first mounting portion and the first protrusion, and the angle formed by the first normal of the plane where the third opening is located and the second normal of the plane where the second opening is located is 0° to 60°.

[0011] In some embodiments, the angle formed by the plane where the second opening is located and the first surface is 110° to 125°; and / or the angle formed by the plane where the third opening is located and the first surface is 110° to 125°.

[0012] In some embodiments, the number of the second mounting portions is two, and the two second mounting portions are symmetrically arranged on opposite sides of the first mounting portion along the first direction; and / or at least a portion of the first mounting portion protrudes from the second surface, and a first cavity is defined in the first mounting portion, and the first cavity can accommodate at least a portion of the signal transmitter.

[0013] In some embodiments, the second mounting portion includes a first hollow semi-cylinder and a hollow hemisphere, a portion of the first hollow semi-cylinder protrudes from the first surface and is connected to the hollow hemisphere to form a first shielding cover, the angle formed by the central axis of the first hollow semi-cylinder and the first surface is an acute angle, and a second opening is formed in the hollow hemisphere.

[0014] In some embodiments, the second mounting portion includes a second hollow semi-cylinder coaxially arranged with the first hollow semi-cylinder, the second hollow semi-cylinder is connected to the end of the first hollow semi-cylinder facing away from the hollow hemisphere, and the inner diameter of the second hollow semi-cylinder is larger than the inner diameter of the first hollow semi-cylinder; and / or, the second mounting portion includes a third hollow semi-cylinder arranged opposite to the first hollow semi-cylinder, the central axis of the third hollow semi-cylinder is parallel to the thickness direction, and the third hollow semi-cylinder penetrates the cover body along the thickness direction of the cover body.

[0015] In some embodiments, the cover body is also provided with a third mounting portion capable of mounting a second signal receiver, and in the first direction, the third mounting portion is located between the first mounting portion and the second mounting portion; the third mounting portion includes a second shielding cover protruding from the first surface, the outer surface of the second shielding cover can absorb the signal transmitted by the signal transmitter, and the second shielding cover is provided with a third opening, and the third opening is away from the first mounting portion; the structure of the third mounting portion is the same as the structure of the second mounting portion.

[0016] According to the second aspect of the present application, an embodiment of the present application also provides an eye detection device, which includes: an end cover provided according to any embodiment of the present application; a signal transmitter, which is arranged on the first mounting part and exposed to the outside of the first surface through the first opening; and a first signal receiver, which is arranged on the second mounting part, and the receiving surface of the first signal receiver is exposed to the outside of the first shielding cover through the second opening.

[0017] The end cap for the eye detection device provided in the embodiment of the present application includes a cover body and a first mounting portion and a second mounting portion provided on the cover body. The first mounting portion is used to install a signal transmitter, and the first opening of the first mounting portion is open to the outside of the first surface, and the signal transmitter can transmit signals in various directions toward the outside of the first surface through the first opening. The second mounting portion is used to install a signal receiver, and includes a first shielding cover protruding from the first surface, and the signal emitted by the signal transmitter that directly irradiates the first shielding cover can be blocked and absorbed by the first shielding cover. The first shielding cover is provided with a second opening, and due to the presence of the first shielding cover, the signal receiver can only receive signals through the second opening. The second opening is provided on the side of the first shielding cover away from the first mounting portion along the first direction, so that the signal receiver can receive the signal reflected by the user's face in a directionally manner through the second opening, shielding stray signals, diffuse reflections and direct signals from the signal transmitter, thereby improving the accuracy of the eye detection device with the end cap in identifying the left and right eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the eye detection device provided in some embodiments of the present application.

[0020] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of an eye detection device is shown.

[0021] Figure 3 It is a schematic diagram of the structure of an end cover for an eye detection device provided in some embodiments of the present application.

[0022] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the end cap shown.

[0023] Figure 5 yes Figure 3 A schematic diagram of the top view of the end cover is shown.

[0024] Figure 6 yes Figure 3 A schematic structural diagram of a portion of the structure of the end cover shown.

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the first protrusion and the first mounting portion of the end cover provided in some embodiments of the present application.

[0026] Figure 8It is a schematic cross-sectional structure diagram of the first protruding portion and the first mounting portion of the end cap provided in some other embodiments of the present application.

[0027] Figure 9 It is Figure 2 an enlarged structural schematic diagram of area A in

[0028] Figure 10 It is a schematic structural diagram of the end cap provided in some other embodiments of the present application.

[0029] In the accompanying drawings:

[0030] Eye detection device 1000, end cap 100, housing 200, shell 300, signal transmitter 400, first signal receiver 500, cover body 10, first surface 10a, second surface 10b, first part 11, second part 12, recess 13, first mounting portion 20, first opening 21, second ring 22, second outer circle 221, second inner circle 222, first cavity 23, second mounting portion 30, first shielding cover 31, second opening 32, first hollow semi-cylinder 33, hollow hemisphere 34, second hollow semi-cylinder 35, third hollow semi-cylinder 36, first protruding portion 40, first ring 41, first outer circle 411, first inner circle 412, second protruding portion 50, third mounting portion 60, second shielding cover 61, third opening 62, third protruding portion 70, ring width d1, longitudinal axis p, thickness direction X, first direction Y, second direction Z, first normal line F1, second normal line F2. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above accompanying drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above accompanying drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0033] References to "embodiments" in this application mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase may not necessarily refer to the same embodiment when it appears in various places in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0034] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", "attach" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0036] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, and other dimensions of various components shown in the drawings in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0037] The term "plurality" as used in this application refers to two or more (including two).

[0038] In the embodiments of this application, "parallel" not only includes the case of absolute parallelism, but also includes the case of approximately parallelism commonly recognized in engineering; at the same time, "perpendicular" not only includes the case of absolute perpendicularity, but also includes the case of approximately perpendicularity commonly recognized in engineering.

[0039] Traditional portable tonometers cannot actively identify the user's left and right eyes when measuring intraocular pressure. Some portable tonometers that can actively identify that were initially developed by the applicant use a visible light source and two receivers. When the user measures the left eye pressure, part of the light is blocked by the user's face and reflected to the receiver on the right side of the device. Since the left side is not blocked by the user's face, most of the light is projected outside the face. The receiver on the left can only receive a small amount of reflected light. The tonometer device determines that the measured eye is the left eye based on the intensity difference of the reflected light received by the left and right receivers. Similarly, when measuring the right eye, theoretically, the left receiver should receive more reflected light than the right receiver, and the right eye is determined based on the intensity difference of the reflected light received by the left and right receivers.

[0040] However, existing tonometers still have some problems in actual use. First, since the light emitted by the transmitter may enter the receiver directly or through diffuse reflection, partial refraction, etc., it may cause system misjudgment and lead to recognition errors. Secondly, the existing tonometer cannot distinguish which is the reflected light from the environment and which is the reflected light from the face. Therefore, the measurement results are greatly disturbed by the ambient light around the user, resulting in inaccurate measurement results and affecting medical diagnosis. Therefore, whether using visible light or infrared light, scattering, diffuse reflection and environmental influences will occur, which will lead to equipment misjudgment and other phenomena. These problems limit the performance and use of existing tonometers.

[0041] In view of this, an embodiment of the present application provides a technical solution for an end cover, which is configured by setting a second mounting portion for mounting a signal receiver to include a first shielding cover, the first shielding cover protruding from the first surface, the outer surface of the first shielding cover can absorb the signal emitted by the signal transmitter, and the signal emitted by the signal transmitter that directly hits the first shielding cover can be blocked and absorbed by the first shielding cover. The first shielding cover is provided with a second opening, and due to the presence of the first shielding cover, the signal receiver can only receive the signal through the second opening. The second opening is provided on the side of the first shielding cover that is away from the first mounting portion along the first direction, so that the signal receiver can directionally receive the signal reflected by the user's face through the second opening, shielding stray signals, diffuse reflections and direct signals from the signal transmitter, thereby improving the accuracy of left and right eye recognition.

[0042] The technical solution provided in the embodiments of the present application is applicable to an eye detection device, which includes but is not limited to an intraocular pressure detection device, such as a tonometer.

[0043] Figure 1 is a schematic diagram of the structure of an eye detection device provided in some embodiments of the present application, Figure 2 yes Figure 1 The cross-sectional structure diagram of the eye detection device shown in FIG. Figure 1 and Figure 2, the eye detection device 1000 may include a housing 300 and a detection component disposed on the housing 300. The detection component is used to obtain at least one parameter information value of the eye.

[0044] Optionally, the detection component may include a signal transmitter 400 and a first signal receiver 500. The signal transmitter 400 is used to transmit a detection signal. The detection signal may be, for example, an optical signal, which may be visible light or invisible light. Exemplarily, the signal transmitter 400 may be used to transmit infrared light or near-infrared light. The first signal receiver 500 is sensitive to the signal transmitted by the signal transmitter 400 and is used to receive the signal. As another example, the detection signal may also be other suitable types of signals that can be reflected.

[0045] The housing 300 may include an outer shell 200 and an end cap 100. The outer shell 200 includes an open end. The end cap 100 is connected to the outer shell 200 and seals the open end of the outer shell 200. The end cap 100 and the outer shell 200 may jointly define a closed accommodation space, which may be used to accommodate at least part of the detection component and other structures of the eye detection device 1000, such as a control device.

[0046] Figure 3 It is a schematic structural diagram of an end cap for an eye detection device provided by some embodiments of the present application. Figure 4 is Figure 3 a schematic exploded structural diagram of the shown end cap. Figure 5 is Figure 3 a schematic top view structural diagram of the shown end cap. Figure 6 is Figure 3 a schematic structural diagram of a partial structure of the shown end cap. Referring to Figures 3 to 6 , the end cap 100 provided by the embodiments of the present application includes a cap body 10, a first mounting portion 20, and a second mounting portion 30. The cap body 10 includes a first surface 10a and a second surface 10b that are oppositely disposed along the thickness direction X of the cap body 10. The first mounting portion 20 is disposed on the cap body 10 and can mount the signal transmitter 400. The first mounting portion 20 penetrates the cap body 10 along the thickness direction X and forms a first opening 21 on the first surface 10a. The first opening 21 is open to the outside of the first surface 10a along the thickness direction X. The second mounting portion 30 is disposed on the cap body 10 and can mount the first signal receiver 500. The second mounting portion 30 is located on at least one side of the first mounting portion 20 along the first direction Y, and the first direction Y intersects with the thickness direction X. The second mounting portion 30 includes a first shielding cover 31 protruding from the first surface 10a. The outer surface of the first shielding cover 31 can absorb the signal emitted by the signal transmitter 400. A second opening 32 is provided on the side of the first shielding cover 31 facing away from the first mounting portion 20.

[0047] It can be understood that the outer side of the cover body 10 refers to the side of the cover body 10 facing away from the accommodation space of the housing 300, and the inner side of the cover body 10 refers to the side of the cover body 10 facing the accommodation space of the housing 300.

[0048] The first surface 10a can be the outer surface of the cover body 10, which faces away from the accommodation space of the housing 300. Correspondingly, the second surface 10b is the inner surface of the cover body 10, which faces the accommodation space of the housing 300.

[0049] The first mounting portion 20 penetrates through the cover body 10. In the thickness direction X, the first mounting portion 20 can protrude outward from the first surface 10a or be flush with the first surface 10a. At least a part of the first mounting portion 20 is located inside the cover body 10.

[0050] Optionally, the first mounting portion 20 can penetrate through the cover body 10 along the thickness direction X, and the central axis of the first mounting portion 20 is perpendicular to the first surface 10a. The first mounting portion 20 can also penetrate through the cover body 10 obliquely, and the central axis of the first mounting portion 20 forms a non-90° angle with the first surface 10a.

[0051] The first opening 21 can be formed at the outer end of the first mounting portion 20 along the thickness direction X. The plane where the first opening 21 is located can be outside the first surface 10a or be flush with the first surface 10a.

[0052] The first opening 21 can be circular, oval, square, triangular or other suitable shapes.

[0053] The second mounting portion 30 penetrates through the cover body 10. In the thickness direction X, the first shielding cover 31 of the second mounting portion 30 protrudes from the first surface 10a. In one embodiment, the second mounting portion 30 can penetrate through the cover body 10 along the thickness direction X, and the central axis of the second mounting portion 30 is perpendicular to the first surface 10a. In another embodiment, the second mounting portion 30 can also penetrate through the cover body 10 obliquely, and the central axis of the second mounting portion 30 forms a non-90° angle with the first surface 10a.

[0054] Optionally, the first shielding cover 31 has a signal absorption layer, and the material of the signal absorption layer can be matched with the type of signal emitted by the signal transmitter 400. Exemplarily, the detection signal emitted by the signal transmitter 400 is an optical signal, and the signal absorption layer is arranged as a light-absorbing material layer capable of absorbing light. The light-absorbing material layer can be any suitable material capable of absorbing light. Optionally, the light-absorbing material layer can be a black light-absorbing material, such as black plastic.

[0055] Exemplarily, the first shielding cover 31 is a single-layer structure with a signal absorption layer. In other words, the entire first shielding cover 31 is made of a material capable of absorbing signals. As another example, in addition to including a signal absorption layer, the first shielding cover 31 may further include other structural layers, and the signal absorption layer is coated on the outside of the other structural layers, and signals can also be absorbed through the signal absorption layer.

[0056] It can be understood that the signals absorbed by the signal absorption layer are the signals directed at the first shielding cover 31. For example, the signals directly emitted by the signal transmitter 400 towards the first shielding cover 31, as well as the signals directed at the first shielding cover 31 through phenomena such as diffuse reflection and refraction.

[0057] Preferably, the first direction Y is perpendicular to the thickness direction X.

[0058] The end cap 100 provided by the embodiment of the present application installs the signal transmitter 400 through the first installation portion 20. Specifically, it is installed through the first opening 21 of the first installation portion 20 and protrudes outside the first surface 10a of the cover body 10. The signal transmitter 400 can emit signals in various directions towards the outside of the first surface 10a through the first opening 21. The second installation portion 30 is used to install the first signal receiver 500 and includes the first shielding cover 31 protruding from the first surface 10a. The signals directly emitted, diffusely reflected or refracted by the signal transmitter 400 to the first shielding cover 31 can be blocked and absorbed by the first shielding cover 31. The first shielding cover 31 is provided with a second opening 32. Due to the presence of the first shielding cover 31, the first signal receiver 500 can only receive signals through the second opening 32. The second opening 32 is provided on the side of the first shielding cover 31 facing away from the first installation portion 20 along the first direction Y. Therefore, the first signal receiver 500 can directionally receive the signals reflected by the user's face through the second opening 32, shielding stray signals, diffuse reflection and the signals directly emitted by the signal transmitter, improving the accuracy of the left and right eye recognition of the eye detection device 1000 having the end cap 100, and thus improving the accuracy of data storage and the detection result of the eye detection device 1000.

[0059] In some embodiments, the end cap 100 further includes a first protruding portion 40. The first protruding portion 40 is adjacent to one side of the first installation portion 20 along the second direction Z, and the first direction Y, the second direction Z and the thickness direction X intersect pairwise. At least part of the first protruding portion 40 protrudes from the first surface 10a, and the outer surface of the first protruding portion 40 can absorb the signals emitted by the signal transmitter.

[0060] In the thickness direction X, the first protruding portion 40 can protrude entirely outside the first surface 10a, or only part of it can protrude outside the first surface 10a, and the other part can be hidden inside the cover body 10 or protrude inside the second surface 10b.

[0061] An accommodation cavity may be defined inside the first protrusion 40, and the accommodation cavity may be used to accommodate other structures of the eye detection device 1000. For example, the accommodation cavity may be used to accommodate optical path structures, probe seats, and other structures.

[0062] The first protrusion 40 may be a hollow cylinder with an annular cross-section. Alternatively, the first protrusion 40 may also be a hollow prism with a square annular or other suitable cross-section.

[0063] Both the first protrusion 40 and the first mounting portion 20 may be hollow cylinders, and the outer diameter of the first protrusion 40 is greater than the outer diameter of the first mounting portion 20.

[0064] The central axis of the first protrusion 40 along the thickness direction X may be perpendicular to the first surface 10a, or may form a non-90° angle with the first surface 10a.

[0065] The signal absorption layer of the first protrusion 40 may have the same structure as the signal absorption layer of the first shielding cover 31, and it can also absorb the signals emitted by the signal transmitter 400, which will not be elaborated here.

[0066] The first protrusion 40 may be a single-layer structure with a signal absorption layer, or may be a multi-layer structure including a signal absorption layer and other structural layers, and the signal absorption layer covers the outside of the other structural layers.

[0067] Preferably, the first protrusion 40 is located on one side of the first mounting portion 20 along the second direction Z and is adjacent to the first mounting portion 20. The first protrusion 40 is disposed adjacent to and in contact with the first mounting portion 20 to minimize the gap therebetween as much as possible, thereby reducing the possible signal transmission directions therebetween, and further reducing signal interference factors.

[0068] The first mounting portion 20 and the second mounting portion 30 may be on the same side of the first protrusion 40 along the second direction Z to reduce the distance between the first mounting portion 20 and the second mounting portion 30, shorten the signal transmission path between the signal transmitter 400 and the first signal receiver 500, and improve the detection accuracy.

[0069] The second mounting portion 30 may be adjacent to the first protrusion 40 or may be spaced apart from the first protrusion 40.

[0070] In the second direction Z, the projection distances of the first mounting portion 20 and the second mounting portion 30 relative to the axis of the first protrusion 40 may be the same or different. That is, in the second direction Z, the two may be flush or may be offset from each other by a certain distance.

[0071] At least a part of the first protrusion 40 protrudes from the first surface 10a and has a signal absorption layer. The direct, diffuse reflection or refraction signals emitted by the signal emitter 400 to the first protrusion 40 can be blocked and absorbed by the first protrusion 40, and the first protrusion 40 will not further reflect the signals, effectively preventing the signals from being emitted in the second direction Z towards the user's face or other structures and then being reflected. At the same time, the first protrusion 40 also blocks part of the external ambient light, reducing the interference of the ambient light and further improving the accuracy of the recognition result.

[0072] Figure 7 It is a schematic cross-sectional structure diagram of the first protrusion and the first installation part of the end cover provided by some embodiments of the present application. In some embodiments, referring to Figure 7 , along the direction perpendicular to the thickness direction X, the cross-section of the first protrusion 40 is a first circular ring 41, and the cross-section of the first installation part 20 is a second circular ring 22. The first outer circle 411 of the first circular ring 41 is tangent to the second outer circle 221 of the second circular ring 22.

[0073] Both the first protrusion 40 and the first installation part 20 are hollow cylinders extending along the thickness direction X.

[0074] The first circular ring 41 includes a first inner circle 412, and the first outer circle 411 surrounds the outside of the first inner circle 412. The second circular ring 22 includes a second inner circle 222, and the second outer circle 221 surrounds the outside of the second inner circle 222. The sum of the radii of the first outer circle 411 and the second outer circle 221 is equal to the center distance between the first outer circle 411 and the second outer circle 221.

[0075] The tangency of the first outer circle 411 and the second outer circle 221 can make the outside of the first protrusion 40 and the outside of the first installation part 20 just connect. There will be no gap between the first installation part 20 and the first protrusion 40. The first protrusion 40 can block and absorb signals in a large range, and at the same time, it also blocks the ambient light in a large range, further reducing the signal interference factors and improving the detection accuracy and the accuracy of the recognition result.

[0076] Figure 8 It is a schematic cross-sectional structure diagram of the first protrusion and the first installation part of the end cover provided by some other embodiments of the present application. In some embodiments, referring to Figure 8, along the direction perpendicular to the thickness direction X, the cross section of the first protrusion 40 is a first circular ring 41, and the cross section of the first mounting portion 20 is a second circular ring 22. The first outer circle 411 of the first circular ring 41 and the second outer circle 221 of the second circular ring 22 intersect. The radius of the first outer circle 411 is r1, the radius of the second outer circle 221 is r2, the ring width of the first circular ring 41 is d1, and the center distance between the first outer circle 411 and the second outer circle 221 is d2. Among them, r1, r2, d1 and d2 satisfy: 0<(r1+r2-d2) <d1 / 2。

[0077] It can be understood that the ring width d1 of the first circular ring 41 is equal to the thickness of the first protruding portion 40. The first protruding portion 40 and the first mounting portion 20 are both hollow cylinders extending along the thickness direction X.

[0078] Further, the first circular ring 41 includes a first inner circle 412, and the first outer circle 411 surrounds the outside of the first inner circle 412. The second circular ring 22 includes a second inner circle 222, and the second outer circle 221 surrounds the outside of the second inner circle 222. In the embodiment of the present application, the sum of the radii of the first outer circle 411 and the second outer circle 221 minus the distance between the centers of the first outer circle 411 and the second outer circle 221 is set to be less than half of the thickness of the first protruding portion 40, which can prevent the first mounting portion 20 from generating a gap between the first protruding portion 40, and the first mounting portion 20 will not protrude toward the accommodating cavity of the first protruding portion 40, and will not affect the structural arrangement in the first protruding portion 40.

[0079] In some embodiments, reference Figures 3 to 5 The cover body 10 is provided with a second protruding portion 50, at least part of which protrudes from the first surface 10a, and the second protruding portion 50 is located on the side of the first mounting portion 20 away from the first protruding portion 40 along the second direction Z, and the outer surface of the second protruding portion 50 can absorb the signal emitted by the signal transmitter 400. In the second direction Z, the second mounting portion 30 is located between the first protruding portion 40 and the second protruding portion 50.

[0080] In the second direction Z, the first mounting portion 20 and the second mounting portion 30 are both located between the first protruding portion 40 and the second protruding portion 50 .

[0081] In the thickness direction X, the second protrusion 50 may protrude outwardly from the first surface 10 a in its entirety, or may only partially protrude outwardly from the first surface 10 a , with the other portion hidden in the cover body 10 or protruding inwardly from the second surface 10 b .

[0082] The second protrusion 50 may define an accommodation cavity inside, and the accommodation cavity may be used to accommodate other structures of the eye detection device 1000. For example, the accommodation cavity of the second protrusion 50 may be used to accommodate a facial support structure and the like.

[0083] The second protruding portion 50 can be a hollow cylinder with an annular cross-section. Alternatively, the second protruding portion 50 can also be a hollow prism with a square annular or other suitable cross-section.

[0084] Both the second protruding portion 50 and the first mounting portion 20 can be hollow cylinders, and the outer diameters of both the first protruding portion 40 and the second protruding portion 50 are greater than the outer diameter of the first mounting portion 20.

[0085] The central axes of the first protruding portion 40, the first mounting portion 20, and the second protruding portion 50 can be on a straight line. For example Figure 5 As shown, the central axes of the first protruding portion 40, the first mounting portion 20, and the second protruding portion 50 are all on the longitudinal axis p along which the cover body 10 extends in the second direction Z.

[0086] The central axis of the second protruding portion 50 in the thickness direction X can be perpendicular to the first surface 10a, or can form a non-90° angle with the first surface 10a. Exemplarily, the central axis of the second protruding portion 50 forms an angle of 90° to 120° with the first surface 10a.

[0087] The second protruding portion 50 can include a signal absorption layer, and the signal absorption layer of the second protruding portion 50 has the same structure as the signal absorption layer of the first shielding cover 31, and it can also absorb the signals emitted by the signal transmitter 400, which will not be elaborated here.

[0088] The second protruding portion 50 can be a single-layer structure with a signal absorption layer, or can be a multi-layer structure including a signal absorption layer and other structural layers, and the signal absorption layer covers the outside of other structural layers.

[0089] At least part of the second protruding portion 50 protrudes from the first surface 10a and has a signal absorption layer. The direct, diffuse, or refracted signals emitted by the signal transmitter 400 to the second protruding portion 50 can be blocked and absorbed by the second protruding portion 50, and the second protruding portion 50 will not further reflect the signals, effectively preventing the signals from being reflected by shooting towards the user's face or other objects below the face in the second direction Z. At the same time, the second protruding portion 50 also blocks part of the external ambient light from below the face, reducing the interference of ambient light and further improving the accuracy of the recognition result.

[0090] The first protruding portion 40 and the second protruding portion 50 are respectively arranged on both sides of the first mounting portion 20 along the second direction Z. The first protruding portion 40 and the second protruding portion 50 can respectively block and absorb the signals on both sides along the second direction Z. The signals emitted by the signal transmitter 400 installed on the first mounting portion 20 can be shot towards the user's face and reflected only through the gap between the second protruding portion 50 and the second mounting portion 30, further controlling the signal transmission direction, reducing the signal interference factors, and improving the detection accuracy.

[0091] In some embodiments, with reference to Figures 3 to 5 , a third protruding portion 70 is provided on the cover body 10, at least a part of the third protruding portion 70 protrudes from the first surface 10a, and the third protruding portion 70 is located on a side of the first protruding portion 40 away from the first mounting portion 20 along the second direction Z. Preferably, the third protruding portion 70 and the second protruding portion 50 are symmetrically arranged.

[0092] An accommodation cavity may be defined inside the third protruding portion 70, and the accommodation cavity may be used to accommodate other structures of the eye detection device 1000. For example, the accommodation cavity of the third protruding portion 70 may be used to accommodate a face support structure or the like. Figure 9 is Figure 2 an enlarged schematic structural view of area A in Figure 5 and Figure 9 , the cover body 10 includes a longitudinal axis p extending along the second direction Z. The centers of the first protruding portion 40 and the first mounting portion 20 are both on the longitudinal axis p, and the plane where the second opening 32 is located is parallel to the longitudinal axis p. The plane where the second opening 32 is located is parallel to the longitudinal axis p, which not only facilitates the first signal receiver 500 installed in the second mounting portion 30 to effectively receive the signal reflected by the user's face through the second opening 32, but also helps the first shielding cover 31 to shield stray signals, diffuse reflection signals, and direct signals from the signal transmitter within as large a range as possible. Optionally, the center of the second protruding portion 50 is also on the longitudinal axis p.

[0093] In some embodiments, with reference to Figure 4 , the cover body 10 includes a first part 11 and a second part 12 surrounding the first part 11. The first part 11 and the second part 12 can be detachably connected by snap connection, screw connection or other suitable means for easy maintenance. In another embodiment, the first part 11 and the second part 12 can be integrally formed.

[0094] The first protruding portion 40, the first mounting portion 20, and the second mounting portion 30 are all provided on the first part 11 and are integrally formed with the first part 11. The first protruding portion 40, the first mounting portion 20, the second mounting portion 30, and the first part 11 can be integrally formed by suitable means such as injection molding to simplify the process.

[0095] The second protruding portion 50 can be provided on the second part 12. The second protruding portion 50 and the second part 12 can be connected together in a suitable manner or can be integrally formed. The first protruding portion 40, the first mounting portion 20, the second mounting portion 30, and the first part 11 can be made of the same material. Exemplarily, the first protruding portion 40, the first mounting portion 20, the second mounting portion 30, and the first part 11 can all be made of materials capable of absorbing signals. The second protruding portion 50 and the second part 12 can be made of the same material. Exemplarily, the second protruding portion 50 and the second part 12 can be made of materials capable of absorbing signals. In another example, a signal absorption layer is provided on the outer surface of the second protruding portion 50. In yet another example, the second protruding portion 50 is made of a substance capable of absorbing signals.

[0096] In the embodiment of the present application, the cover body 10 is provided in two parts, which is convenient for installing the components of the eye detection device 1000, such as the signal transmitter 400, the first signal receiver 500, the face support device, the probe seat, the probe, etc. The first protruding portion 40, the first mounting portion 20, the second mounting portion 30, and the first part 11 are integrally formed, which simplifies the process and reduces the assembly error.

[0097] The inventors recognized that due to the influence of the ambient light around the user, such as when the user is being measured, there is white light behind or there is a heat source behind. The light received by the receiver corresponding to the beam includes the interference factor of the ambient light, resulting in misjudgment of the left and right eyes.

[0098] Figure 10 It is a schematic structural diagram of an end cover provided by other embodiments of the present application. In some embodiments, the cover body 10 is further provided with a third mounting portion 60 capable of mounting a second signal receiver. In the first direction Y, the third mounting portion 60 is located between the first mounting portion 20 and the second mounting portion 30. The third mounting portion 60 includes a second shielding cover 61 protruding from the first surface 10a. The outer surface of the second shielding cover 61 can absorb the signal emitted by the signal transmitter 400, and the second shielding cover 61 is provided with a third opening 62. The third opening 62 faces away from the first mounting portion 20 and the first protruding portion 40. The included angle β formed by the first normal line F1 of the plane where the third opening 62 is located and the second normal line F2 of the plane where the second opening 32 is located is 0° to 60°.

[0099] The third opening 62 can be located on the side of the second shielding cover 61 facing away from the first protruding portion 40.

[0100] The structure of the third mounting portion 60 can be the same as that of the second mounting portion 30. The position and orientation of the third mounting portion 60 relative to the first mounting portion 20 are different from those of the second mounting portion 30. Exemplarily, the third mounting portion 60 can be obtained by rotating the second mounting portion 30 by an angle β around the rotation axis along the thickness direction X.

[0101] The second shielding cover 61 can be a single-layer structure with a signal absorption layer, or a multi-layer structure including a signal absorption layer and other structural layers, and the signal absorption layer is coated on the outside of the other structural layers.

[0102] In the embodiment of the present application, a third mounting portion 60 is provided between the first mounting portion 20 and the second mounting portion 30, and the orientation of the third opening 62 of the third mounting portion 60 is particularly defined. The second mounting portion 30 and the third mounting portion 60 can be respectively used to mount signal receivers sensitive to different signals. The signals received by different signal receivers can exclude interference signals, and further improve the accuracy of left and right eye recognition.

[0103] For example, the first signal receiver 500 installed in the second mounting portion 30 is sensitive to infrared light, and the second signal receiver installed in the third mounting portion 60 is sensitive to temperature. During detection, the two signal receivers respectively receive data of the reflected light intensity and the temperature, compare the obtained reflected light intensity with the light intensity threshold, and compare the obtained temperature with the temperature threshold. The two comparison results are used to confirm each other to exclude the influence of the environmental heat source, and the accuracy of left and right eye recognition can be improved.

[0104] Another example is that the first signal receiver installed in the second mounting portion 30 is sensitive to both infrared light and white light, and the second signal receiver installed in the third mounting portion 60 is only sensitive to white light. During detection, the difference in the reflected light intensity received by the two signal receivers is the reflected light intensity of the infrared light, excluding the interference of white light in the environment.

[0105] Optionally, the included angle formed by the first normal line of the plane where the third opening 62 is located and the second normal line of the plane where the second opening 32 is located can be 0°, 10°, 20°, 30°, 40°, 50°, or 60°.

[0106] If the included angle formed by the first normal line F1 of the plane where the third opening 62 is located and the second normal line F2 of the plane where the second opening 32 is located is at least 0°, at this time, the plane where the second opening 32 is located is parallel to the plane where the third opening 62 is located. If the included angle formed by the first normal line F1 of the plane where the third opening 62 is located and the second normal line F2 of the plane where the second opening 32 is located is too large, the second signal receiver of the third mounting portion 60 may receive ambient light from below the face, affecting the measurement accuracy; the second protrusion 50 may be in the signal path corresponding to the third opening 62, thereby blocking part of the signal and affecting the significance of the setting of the third mounting portion 60. When the included angle exceeds 90°, the second signal receiver located in the third mounting portion 60 may receive signals from the other side of the first mounting portion 20 along the first direction Y, affecting left and right eye recognition.

[0107] In some embodiments, the plane where the second opening 32 is located forms an angle α with the first surface 10a, where 110° ≤ α ≤ 125°.

[0108] The plane where the second opening 32 is located forms an angle α with the first surface 10a. For example, the value of α can be 110°, 111°, 112°, 113°, 114°, 115°, 116°, 117°, 118°, 119°, 120°, 121°, 122°, 123°, 124° or 125°.

[0109] If the angle α formed by the plane where the second opening 32 is located and the first surface 10a is too small, the opening degree of the second opening 32 is small, and the first shielding cover 31 may block the signal reflected by the user's face, resulting in the first signal receiver 500 being unable to effectively receive the reflected signal. If the angle α formed by the plane where the second opening 32 is located and the first surface 10a is too large, the opening degree of the second opening 32 is larger, and the first shielding cover 31 cannot play an effective shielding effect and is still affected by stray light caused by scattering and diffuse reflection.

[0110] In view of this, in the embodiments of the present application, the angle α formed by the plane where the second opening 32 is located and the first surface 10a is set between 110° and 125°, which can not only ensure that the first signal receiver 500 effectively receives the signal reflected by the user's face, but also improve the absorption and shielding effect of the first shielding cover 31 on the signal.

[0111] In some embodiments, the angle formed by the plane where the third opening 62 is located and the first surface 10a is 110° - 125°. Optionally, the angle formed by the plane where the third opening 62 is located and the first surface 10a can be 110°, 111°, 112°, 113°, 114°, 115°, 116°, 117°, 118°, 119°, 120°, 121°, 122°, 123°, 124° or 125°, etc.

[0112] Exemplarily, the angle formed by the plane where the third opening 62 is located and the first surface 10a can be the same as the angle formed by the plane where the second opening 32 is located and the first surface 10a, both being α.

[0113] As another example, the angle formed by the plane where the third opening 62 is located and the first surface 10a can also be different from the angle formed by the plane where the second opening 32 is located and the first surface 10a.

[0114] In the embodiments of the present application, the angle formed by the plane where the third opening 62 is located and the first surface 10a is set between 110° and 125°, which can not only ensure that the second signal receiver effectively receives the signal, but also improve the absorption and shielding effect of the second shielding cover 61 on the signal.

[0115] In some embodiments, the number of the second mounting portions 30 is two, and the two second mounting portions 30 are symmetrically arranged on opposite sides of the first mounting portion 20 along the first direction Y, and the two second openings 32 are respectively arranged in directions away from the first mounting portion 20.

[0116] The first signal receivers 500 installed in the two second mounting portions 30 are the same.

[0117] During detection, the first direction Y can be the left - right direction. The signal emitted by the signal transmitter 400 located in the first mounting portion 20 is emitted only through the gap between the second mounting portion 30 and the second protrusion 50, thus forming two left - right signal paths. When detecting the left eye, the signal on the left side is transmitted outside the user's face, and the signal intensity of the signal that is not reflected or is reflected back to the first signal receiver on the left side is extremely small; the signal on the right side is transmitted to the user's face and is reflected to the first signal receiver in the second mounting portion 30 on the right side, and the intensity of the reflected signal received by the first signal receiver on the right side is relatively high. Similarly, when detecting the right eye, most of the signals on the right side are transmitted outside the user's face, and the signal intensity of the signal that is not reflected or is reflected back to the first signal receiver on the right side is extremely small; the signal on the left side is transmitted to the user's face and is reflected to the first signal receiver in the second mounting portion 30 on the left side, and the intensity of the reflected signal received by the first signal receiver on the left side is relatively high. Due to the different signal reflection intensities received by the two first signal receivers on the left and right, the left - right eye recognition function can be realized accordingly.

[0118] Optionally, a third mounting portion 60 is provided between each second mounting portion 30 and the first mounting portion 20. In other words, the number of the third mounting portions 60 is also two, and the two third mounting portions 60 are symmetrically arranged on opposite sides of the first mounting portion 20 along the first direction Y.

[0119] In some alternative embodiments, the number of the second mounting portions 30 can also be one, and it is located on any one side of the first mounting portion 20 along the first direction Y.

[0120] Optionally, the second mounting portion 30 can be located on the right side of the first mounting portion 20 along the first direction Y. Ideally, when detecting the left eye, the first signal receiver in the second mounting portion 30 can receive the reflected signal; when detecting the right eye, the first signal receiver in the second mounting portion 30 cannot receive the reflected signal. Similarly, the second mounting portion 30 can also be located on the left side of the first mounting portion 20 along the first direction Y. When detecting the left eye, the first signal receiver cannot receive the reflected signal; when detecting the right eye, the first signal receiver can receive the reflected signal. Accordingly, the left and right eyes can be accurately identified.

[0121] In some embodiments, the number of the third mounting portions 60 is the same as the number of the second mounting portions 30, and they are arranged in one - to - one correspondence.

[0122] It is understood that the shape of the second mounting portion 30 can match the shape of the first signal receiver. Figure 9 The second mounting portion 30 includes a first hollow semi-cylinder 33 and a hollow semi-sphere 34. A portion of the first hollow semi-cylinder 33 protrudes from the first surface 10a and is connected to the hollow semi-sphere 34 to form a first shielding cover 31. The specific angle formed by the central axis of the first hollow semi-cylinder 33 and the first surface 10a is an acute angle, and the second opening 32 is formed in the hollow semi-sphere 34. During manufacturing, the first hollow semi-cylinder 33 obliquely penetrates the cover body 10 in a direction that forms a specific angle with the first surface 10a, thereby making a portion of the first hollow semi-cylinder 33 hidden in the thickness of the cover body 10 and a portion protruding from the first surface 10a.

[0123] It should be noted that the first hollow semi-cylinder 33 is a part of the hollow cylinder obtained by longitudinally cutting the hollow cylinder along a plane parallel to its central axis, and the first hollow semi-cylinder 33 includes but is not limited to half of the hollow cylinder. Similarly, the hollow hemispherical body 34 is a part of the hollow sphere, and the hollow hemispherical body 34 includes but is not limited to half of the hollow sphere.

[0124] The hollow hemispherical body 34 may protrude from the first surface 10a as a whole and be located outside the first surface 10a. The second opening 32 may be formed by cutting off a portion of the hollow hemispherical body 34. Preferably, the cut surface is parallel to the longitudinal axis p and forms an angle α with the first surface 10a.

[0125] The first hollow semi-cylinder 33 and the hollow semi-sphere 34 can be used to accommodate at least a portion of the first signal receiver 500 , and better match the shape of the first signal receiver 500 .

[0126] In some embodiments, the second mounting portion 30 includes a second hollow semi-cylinder 35 coaxially arranged with the first hollow semi-cylinder 33 , the second hollow semi-cylinder 35 is connected to one end of the first hollow semi-cylinder 33 facing away from the hollow hemisphere 34 , and the inner diameter of the second hollow semi-cylinder 35 is larger than the inner diameter of the first hollow semi-cylinder 33 .

[0127] The second hollow semi-cylinder 35 may be located inside the cover body 10. The angle formed by the second hollow semi-cylinder 35 and the cover body 10 is the same as the angle formed by the first hollow semi-cylinder 33 and the cover body 10.

[0128] The space inside the second hollow semi-cylinder 35 , the space inside the first hollow semi-cylinder 33 , and the space inside the hollow hemisphere 34 are sequentially connected to form a space for accommodating the first signal receiver 500 .

[0129] The second hollow semi-cylinder 35 can be used to accommodate the base of the first signal receiver 500, improving the installation stability of the first signal receiver 500. In the embodiments of the present application, two hollow semi-cylinders with different inner diameters are used to accommodate the first signal receiver 500, which fits better with the shape of the first signal receiver 500 and reduces the wobbling of the first signal receiver 500 within the second mounting portion 30.

[0130] In some alternative embodiments, the second mounting portion 30 may also include only one hollow semi-cylinder with a larger inner diameter and the hollow hemisphere 34 to integrally accommodate the first signal receiver 500 and its base. Thus, only one milling operation is required, simplifying the process.

[0131] In some embodiments, referring to Figure 6 , the cover body 10 includes a recess 13. The recess 13 corresponds to the second mounting portion 30 in the thickness direction X and is recessed from the second surface 10b towards the first surface 10a.

[0132] In some embodiments, the shape of the recess 13 matches the shape of the first signal receiver. Exemplarily, the recess 13 can be semi-cylindrical to facilitate the installation of the first signal receiver.

[0133] In some embodiments, referring to Figure 6 , at least a part of the first mounting portion 20 protrudes from the second surface 10b. A first cavity 23 is defined within the first mounting portion 20, and the first cavity 23 can accommodate at least a part of the signal transmitter.

[0134] The first mounting portion 20 can protrude entirely from the second surface 10b or partially from the second surface 10b.

[0135] Optionally, the signal transmitter can be entirely accommodated within the first cavity 23 to block the signal emitted by the signal transmitter inside the cover body 10 through the first mounting portion 20, such that the signal emitted by the signal transmitter is only emitted through the first opening 21.

[0136] In the embodiments of the present application, at least a part of the first mounting portion 20 is provided to protrude from the second surface 10b, which can improve the installation stability of the signal transmitter and block the signal in an undesired direction through the first mounting portion 20.

[0137] Refer to Figure 6 and Figure 9, the second mounting portion 30 further includes a third hollow semi-cylinder 36 opposite to the first hollow semi-cylinder 33. The central axis of the third hollow semi-cylinder 36 is parallel to the thickness direction X, and the third hollow semi-cylinder 36 penetrates the cover body 10 along the thickness direction X of the cover body 10. During installation, the lower surface of the first signal receiver 500 abuts against the side wall of the third hollow semi-cylinder 36, and the upper surface abuts against the first hollow semi-cylinder 33 and the hollow hemisphere 34 respectively. This design improves the inclusiveness and installation convenience for the first signal receiver 500.

[0138] Those skilled in the art can understand that in an alternative embodiment, a complete hollow cylinder corresponding to the first hollow semi-cylinder 33 can be used to penetrate the cover body 10 in a direction at a specific angle to the first surface 10a, and then a hollow hemisphere 34 is formed at the position where the complete hollow cylinder protrudes from the first surface 10a. In this alternative embodiment, when installing the first signal receiver 500, the outer surface of the first signal receiver 500 is wrapped by the hollow cylinder, which can increase the installation stability.

[0139] In some embodiments, the structure of the third mounting portion 60 is the same as that of the second mounting portion 30. For example, the third mounting portion 60 also includes structures such as a first hollow semi-cylinder and a hollow hemisphere, which will not be elaborated here.

[0140] According to the second aspect of the present application, an eye detection device 1000 is further provided in an embodiment of the present application. Referring to Figure 1 , Figure 2 and Figure 9 , the eye detection device 1000 includes a signal transmitter 400, a first signal receiver 500, and an end cover 100 provided according to any embodiment of the present application. The signal transmitter 400 is disposed in the first mounting portion 20 and is exposed to the outside of the first surface 10a through the first opening 21. The first signal receiver 500 is disposed in the second mounting portion 30, and the receiving surface of the first signal receiver 500 is exposed to the outside of the first shielding cover 31 through the second opening 32.

[0141] The signal transmitter 400 can be an optical transmitter capable of emitting an optical signal, and the optical signal emitted by it can be an infrared signal, a white light signal, etc. Correspondingly, the first signal receiver 500 can be a receiver sensitive to the optical signal emitted by the signal transmitter 400 and can receive the optical signal.

[0142] In some alternative embodiments, the signal transmitter 400 can also emit other types of signals. Correspondingly, the first signal receiver 500 is sensitive to other types of signals emitted by the signal transmitter 400 and can receive the signal.

[0143] The signal transmitter 400 can transmit signals in various directions toward the outside of the first surface 10a through the first opening 21. The first signal receiver 500 can directionally receive the signals reflected by the user's face through the second opening 32, shielding stray signals, diffuse reflections, and the direct signals from the signal transmitter, improving the accuracy of the left and right eye recognition by the eye detection device 1000, and thus improving the accuracy of data storage and the detection result of the eye detection device 1000.

[0144] In some embodiments, the eye detection device 1000 further includes a housing 200. The housing 200 includes an open end. The end cap 100 is connected to the housing 200 and seals the open end of the housing 200 to form a housing body 300.

[0145] In some embodiments, the eye detection device 1000 further includes a control device disposed in the housing body 300. The control device is connected to the signal transmitter 400 and the first signal receiver 500, and is configured to determine whether the currently detected eye is the left eye or the right eye according to the signal strength of the reflected signal received by the first signal receiver 500.

[0146] The eye detection device 1000 provided by the embodiments of the present application has a simple structure, is easy to manufacture, has a low cost, strong practicability, and high detection accuracy, providing convenience for data storage, tracking, and monitoring after measurement.

[0147] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An end cap for an eye detection device, characterized in that, include: The cover body comprises a first surface and a second surface which are arranged opposite to each other along the thickness direction of the cover body; a first mounting portion, provided on the cover body and capable of mounting a signal transmitter, the first mounting portion penetrating the cover body along the thickness direction and forming a first opening on the first surface, the first opening being open to the outside of the first surface along the thickness direction; as well as A second mounting portion is provided on the cover body and is capable of mounting a first signal receiver. The second mounting portion is located on at least one side of the first mounting portion along a first direction, and the first direction intersects with the thickness direction. The second mounting portion includes a first shielding cover protruding from the first surface, and the outer surface of the first shielding cover is capable of absorbing the signal emitted by the signal transmitter. A second opening is provided on a side of the first shielding cover facing away from the first mounting portion.

2. The end cap according to claim 1, characterized in that, Also includes: A first protruding portion, adjacent to one side of the first mounting portion along a second direction, wherein the first direction, the second direction and the thickness direction intersect each other; At least a portion of the first protrusion protrudes from the first surface, and an outer surface of the first protrusion can absorb the signal emitted by the signal transmitter.

3. The end cap according to claim 2, characterized in that: Along a direction perpendicular to the thickness direction, a cross section of the first protruding portion is a first circular ring, and a cross section of the first mounting portion is a second circular ring; The first outer circle of the first ring is tangent to the second outer circle of the second ring; or, the first outer circle of the first ring is intersected with the second outer circle of the second ring, the radius of the first outer circle is r1, the radius of the second outer circle is r2, the ring width of the first ring is d1, and the center distance between the first outer circle and the second outer circle is d2, wherein r1, r2, d1 and d2 satisfy: 0<(r1+r2-d2)<d1 / 2.

4. The end cap according to claim 2, characterized in that: The cover body is provided with a second protrusion, at least part of which protrudes from the first surface, the second protrusion is located on a side of the first mounting portion away from the first protrusion along the second direction, and the outer surface of the second protrusion can absorb the signal transmitted by the signal transmitter; In the second direction, the second mounting portion is located between the first protruding portion and the second protruding portion.

5. The end cap according to claim 2, characterized in that, The end cap also has one or more of the following features: The cover body includes a first portion and a second portion surrounding the first portion; the first protruding portion, the first mounting portion and the second mounting portion are all arranged on the first portion and are an integrally formed structure with the first portion; The cover body includes a recessed portion, which corresponds to the second mounting portion along the thickness direction and is recessed from the second surface to the first surface; The cover body includes a longitudinal axis extending along the second direction, the centers of the first protrusion and the first mounting portion are both located on the longitudinal axis, and the plane where the second opening is located is parallel to the longitudinal axis.

6. The end cap according to claim 1, characterized in that: The cover body further has a third mounting portion capable of mounting a second signal receiver. In the first direction, the third mounting portion is located between the first mounting portion and the second mounting portion; The third mounting portion includes a second shielding cover protruding from the first surface. The outer surface of the second shielding cover can absorb the signal emitted by the signal emitter, and the second shielding cover is provided with a third opening. The third opening faces away from the first mounting portion, and the included angle formed by the first normal line of the plane where the third opening is located and the second normal line of the plane where the second opening is located is 0° to 60°.

7. The end cover according to claim 6, wherein The included angle formed by the plane where the second opening is located and the first surface is 110° to 125°; and / or The included angle formed by the plane where the third opening is located and the first surface is 110° to 125°.

8. The end cover according to claim 1, wherein The number of the second mounting portions is two, and the two second mounting portions are symmetrically arranged on opposite sides of the first mounting portion along the first direction; and / or At least a part of the first mounting portion protrudes from the second surface, and a first cavity is defined in the first mounting portion, and the first cavity can accommodate at least a part of the signal emitter.

9. The end cover according to claim 1, wherein The second mounting portion includes a first hollow semi-cylinder and a hollow hemisphere. A part of the first hollow semi-cylinder protrudes from the first surface and is connected to the hollow hemisphere to form the first shielding cover. The included angle formed by the central axis of the first hollow semi-cylinder and the first surface is an acute angle, and the second opening is formed in the hollow hemisphere.

10. The end cover according to claim 9, wherein The second mounting portion includes a second hollow semi-cylinder coaxially arranged with the first hollow semi-cylinder. The second hollow semi-cylinder is connected to one end of the first hollow semi-cylinder away from the hollow hemisphere, and the inner diameter of the second hollow semi-cylinder is larger than the inner diameter of the first hollow semi-cylinder; and / or, The second mounting portion includes a third hollow semi-cylinder arranged opposite to the first hollow semi-cylinder. The central axis of the third hollow semi-cylinder is parallel to the thickness direction, and the third hollow semi-cylinder penetrates the cover body along the thickness direction.

11. The end cover according to any one of claims 1-10, wherein The cover body further has a third mounting portion capable of mounting a second signal receiver. In the first direction, the third mounting portion is located between the first mounting portion and the second mounting portion; The third mounting portion includes a second shielding cover protruding from the first surface. The outer surface of the second shielding cover can absorb the signal emitted by the signal emitter, and the second shielding cover is provided with a third opening. The third opening faces away from the first mounting portion; The structure of the third mounting portion is the same as the structure of the second mounting portion.

12. An eye detection device, characterized in that, Comprising: The end cover according to any one of claims 1-11; A signal transmitter, which is disposed on the first mounting portion and is exposed outside the first surface through the first opening; And A first signal receiver, which is disposed on the second mounting portion, and the receiving surface of the first signal receiver is exposed outside the first shielding cover through the second opening.

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