An eye movement tracking structure, an eye movement tracking device and an intelligent glasses device

Abstract

The present disclosure relates to the field of intelligent devices, and particularly to an eye movement tracking structure, an eye movement tracking device and an intelligent glasses device. The eye movement tracking structure is used for wearing on the eye of a wearer, and comprises an inner ring piece, an outer ring piece and an image collector used for image collection of the eye of the wearer. The inner ring piece and the outer ring piece are both ring-shaped pieces. One side of the inner ring piece is close to the eye of the wearer, and the other side of the inner ring piece is in abutment with one side of the outer ring piece. The side of the inner ring piece close to the eye of the wearer is connected with a cover. A slot is provided through the thickness direction of the inner ring piece close to the cover, and the slot is in communication with the space in the cover. An extrusion plate is arranged in the slot and is detachably connected with the inner ring piece. The image collector is in abutment between the extrusion plate and the inner wall of the cover, and the image collector is connected with the outer ring piece. Thus, the production and maintenance efficiency of the eye movement tracking structure can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of smart devices, and in particular to an eye-tracking structure, an eye-tracking device, and a smart glasses device. Background Technology

[0002] Currently, smart devices such as VR glasses typically include eye-tracking structures to capture images of the wearer's eyes and control the smart device to perform corresponding preset operations based on the captured eye images.

[0003] Current eye-tracking structures consist of a mounting component and an image acquisition unit. To reduce wear on the image acquisition unit, the mounting component is typically designed to consist of an outer shell and a base. The image acquisition unit is fixedly connected to the base, and the outer shell is fitted over the image acquisition unit to protect it. For ease of manufacturing, the outer shell and the base that connects to the image acquisition unit are usually manufactured separately. During the assembly of the eye-tracking structure, adhesive is used to bond the base and the outer shell together to relatively secure them.

[0004] However, in order to ensure a stable connection between the base and the outer shell, a large amount of glue is usually used to bond them together. After applying the glue to the base and the outer shell, it takes a long time for the glue to dry. As a result, the assembly and disassembly efficiency of the eye-tracking structure is low, and therefore the production and maintenance efficiency of the eye-tracking structure is also low. Summary of the Invention

[0005] To address the aforementioned technical problems, the technical solution adopted in this disclosure is as follows:

[0006] According to one aspect of this disclosure, an eye-tracking structure is provided for wearing on the eyes of a wearer. The eye-tracking structure includes an inner ring, an outer ring, and an image acquisition device for acquiring images of the wearer's eyes.

[0007] Both the inner and outer ring plates are annular plates.

[0008] One side of the inner ring is close to the wearer's eyes, and the side of the inner ring away from the wearer's eyes abuts against the side of the outer ring.

[0009] The inner ring is connected to the cover on the side closest to the wearer's eyes.

[0010] A slot is provided through the inner ring plate near the cover, along the thickness direction of the inner ring plate, and the slot is connected to the space inside the cover.

[0011] The slot is equipped with a compression plate that can be detachably connected to the inner ring plate.

[0012] The image acquisition device is positioned between the extrusion plate and the inner wall of the cover, and is connected to the outer ring plate.

[0013] Optionally, an extrusion groove is provided through the extrusion plate along the thickness direction of the extrusion plate.

[0014] The lens of the image acquisition device is located between the inner ring and the wearer's eyes, with the lens end resting against the inside of the cover.

[0015] The end of the image acquisition unit furthest from the lens is connected to a contact plate, which is connected to the outer ring plate.

[0016] The side of the abutment piece furthest from the image acquisition device is designated as the abutment surface, which abuts against the inner wall of the extrusion groove.

[0017] Optionally, a sponge sheet is placed between the contact surface and the inner wall of the extrusion groove, and the sponge sheet is in a state of being squeezed by the contact surface and the inner wall of the extrusion groove.

[0018] Optionally, at least one lamp slot is formed through the inner ring sheet along its thickness direction. In some embodiments, a plurality of lamp slots are formed through the inner ring sheet along its thickness direction.

[0019] Each light slot is equipped with an infrared lamp. The end of each infrared lamp near the outer ring is connected to the outer ring. Each infrared lamp is used to emit infrared light into the space between the inner ring and the wearer's eyes.

[0020] Optionally, a transparent ring is connected to the side of the inner ring away from the outer ring, and the transparent ring covers each lamp slot on the inner ring.

[0021] According to another aspect of this disclosure, this disclosure also provides an eye-tracking device, which includes an optical engine lens barrel and the aforementioned eye-tracking structure.

[0022] The optical mechanism tube is located on the side of the outer ring plate away from the inner ring plate, and the side of the outer ring plate away from the inner ring plate is connected to the optical mechanism tube.

[0023] Optionally, the eye-tracking device may also include a rotating ring, which is rotatably fitted onto the outside of the optical engine barrel mount. The rotating ring is used to focus the optical engine barrel when it rotates relative to the optical engine barrel.

[0024] Optionally, the rotating ring includes a first half-ring and a second half-ring, both of which are semi-circular, and the first half-ring and the second half-ring are detachably connected.

[0025] According to another aspect of this disclosure, this disclosure also provides a smart glasses device for wearing on the face of a wearer, the smart glasses device including a frame, a main unit and two of the aforementioned eye-tracking devices.

[0026] One side of the frame is close to the wearer's face.

[0027] Two eye-tracking devices are symmetrically mounted on the frame, with each device positioned close to the wearer's eyes.

[0028] The main unit is mounted on the side of the frame away from the wearer's face.

[0029] Each eye-tracking device is connected to the host computer, which controls the optical-mechanical tube in each eye-tracking device for display.

[0030] Optionally, the side of the frame closest to the wearer's face is connected to a ring-shaped soft padding strip along its length, with the side of the soft padding strip away from the frame fitting snugly against the wearer's face.

[0031] This disclosure has at least the following beneficial effects:

[0032] This disclosure adopts a connection method in which the image acquisition device is abutted between the extrusion plate and the cover. Compared with the connection method of connecting the outer ring plate and the inner ring plate by adhesive bonding, this disclosure can directly install the extrusion plate on the inner ring plate to fix the outer ring plate and the inner ring plate relatively, without waiting for the glue to dry. This improves the assembly and disassembly efficiency of the eye-tracking structure, and thus improves the production and maintenance efficiency of the eye-tracking structure. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 An exploded view of the eye-tracking structure provided in an embodiment of this disclosure.

[0035] Figure 2 for Figure 1 An enlarged view of part A.

[0036] Figure 3 This is a schematic diagram of the eye-tracking structure provided in an embodiment of this disclosure.

[0037] Figure 4 for Figure 3 An enlarged view of part B.

[0038] Figure 5 This is a schematic diagram of the structure of the extrusion plate provided in an embodiment of this disclosure.

[0039] Figure 6 This is a schematic diagram showing the structure of the extrusion groove as provided in an embodiment of this disclosure.

[0040] Figure 7A front view of a smart glasses device provided in an embodiment of this disclosure.

[0041] Figure 8 The smart glasses device provided in the embodiments of this disclosure is along Figure 7 A cross-sectional view with dashed lines in the figure.

[0042] Figure 9 for Figure 8 An enlarged view of part C.

[0043] Figure 10 This is a schematic diagram of the structure of the inner ring plate provided in an embodiment of this disclosure.

[0044] Figure 11 This is a schematic diagram of the structure of the prominent display slot provided in an embodiment of this disclosure.

[0045] Figure 12 An exploded view of the eye-tracking device provided in an embodiment of this disclosure.

[0046] Figure 13 This is a schematic diagram of the structure of the eye-tracking device provided in an embodiment of this disclosure.

[0047] Figure 14 A schematic diagram highlighting the first and second half-rings is provided for embodiments of this disclosure.

[0048] Figure 15 This is a schematic diagram of the structure of a smart glasses device provided in an embodiment of this disclosure.

[0049] Explanation of reference numerals in the attached drawings: 1. Eye-tracking structure; 11. Inner ring plate; 111. Cover; 1111. Lens groove; 1112. Transparent lens; 112. Slot; 113. Squeezing plate; 1131. Pressure plate buckle; 1132. Squeezing groove; 114. Buckling plate; 115. Positioning post; 116. Lamp groove; 12. Outer ring plate; 121. Abutting piece; 1211. Abutting surface; 1212. Sponge sheet; 122. Infrared... 13. Lamp; 131. Image acquisition device; 1311. Elastic sleeve; 1311. Lens hole; 14. Transparent ring; 2. Eye tracking device; 21. Optical engine barrel; 211. Receiving groove; 212. Masking plate; 22. Rotating ring; 221. First half ring; 222. Second half ring; 3. Smart glasses device; 31. Frame; 32. Main unit; 321. BTB connector; 3211. FPC board; 33. Soft pad strip. Detailed Implementation

[0050] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0051] This disclosure provides an eye-tracking structure for wearing in front of either eye of a wearer.

[0052] Reference Figure 1 The eye-tracking structure 1 includes an inner ring plate 11, an outer ring plate 12, and an image acquisition device 13 for acquiring eye images of the wearer's eyes.

[0053] Reference Figure 1 and Figure 2 Both the inner ring 11 and the outer ring 12 are circular ring-shaped pieces; one side of the inner ring 11 is close to the wearer's eyes, and the side of the inner ring 11 away from the wearer's eyes abuts against one side of the outer ring 12; the side of the inner ring 11 close to the wearer's eyes is connected to a cover 111; a slot 112 is provided through the inner ring 11 near the cover 111 along the thickness direction of the inner ring 11, and the slot 112 communicates with the space inside the cover 111.

[0054] Reference Figure 3 and Figure 4 A compression plate 113 is provided inside the slot 112 and is detachably connected to the inner ring piece 11. In one possible embodiment, a plurality of pressure plate buckles 1131 are fixedly connected to the edge of the compression plate 113. Each pressure plate buckle 1131 connected to the compression plate 113 abuts against a buckle plate 114 on the side away from the cover 111, and each buckle plate 114 is integrally connected to the inner ring piece 11. The pressure plate buckles 1131 are made of an elastic material, such as plastic or rubber, etc., and this embodiment does not limit the material.

[0055] Reference Figure 1 The image acquisition device 13 is abutted between the compression plate 113 and the inner wall of the cover 111, and the image acquisition device 13 is in a state of being squeezed by the compression plate 113 and the cover 111; the image acquisition device 13 is connected to the outer ring plate 12, and the lens end of the image acquisition device 13 faces the eyes of the wearer.

[0056] In assembling the eye-tracking structure 1, the image acquisition device 13 is first inserted into the housing 111, and the inner ring plate 11 is adjusted to abut against the outer ring plate 12. Then, the compression plate 113 is installed relative to the inner ring plate 11 so that the image acquisition device 13 abuts against the compression plate 113 and the housing 111. At this time, the outer ring plate 12 and the inner ring plate 11 can be relatively fixed. It can be seen that the present disclosure adopts the connection method of abutting the image acquisition device 13 between the compression plate 113 and the housing 111. Compared with the connection method of connecting the outer ring plate 12 and the inner ring plate 11 by adhesive bonding, the present disclosure can directly install the compression plate 113 on the inner ring plate 11 to relatively fix the outer ring plate 12 and the inner ring plate 11 without waiting for the glue to dry. This improves the assembly and disassembly efficiency of the eye-tracking structure 1, and thus improves the production and maintenance efficiency of the eye-tracking structure 1.

[0057] In addition, the image acquisition device 13 being squeezed by the compression plate 113 and the cover 111 can improve the positional stability of the image acquisition device 13 relative to the compression plate 113 and the cover 111 in the eye tracking structure 1, thereby improving the connection stability between the outer ring plate 12 and the inner ring plate 11.

[0058] Optional, refer to Figure 1 After fixing the inner ring 11 and the outer ring 12 relatively in the above manner, the inner ring 11 and the outer ring 12 can be bonded together at the joint between them with glue. Since this bonding is used to strengthen the connection between the inner ring 11 and the outer ring 12, only a small amount of glue is needed and the drying time is short.

[0059] Optional, refer to Figure 1 A plurality of positioning posts 115 are fixedly connected to the side of the inner ring plate 11 near the outer ring plate 12. The positioning posts 115 are arranged along the annular direction of the inner ring plate 11, and each positioning post 115 is inserted into the outer ring plate 12. It can be seen that the setting of the positioning posts 115 can reduce the possibility of misalignment between the inner ring plate 11 and the outer ring plate 12.

[0060] Reference Figure 4 and Figure 5 An extrusion groove 1132 is provided on the extrusion plate 113 along the thickness direction of the extrusion plate 113.

[0061] Reference Figure 1 An elastic sleeve 131 is attached to the outer sleeve of the image acquisition device 13. The elastic sleeve 131 abuts between the image acquisition device 13 and the cover 111. The elastic sleeve 131 is in a state of being stretched by the image acquisition device 13 and compressed by the cover 111. The material of the elastic sleeve 131 can be silicone or rubber, etc. This embodiment does not limit this. A lens hole 1311 is provided through the elastic sleeve 131 near the lens end along the thickness direction of the elastic sleeve 131.

[0062] Reference Figure 1 The lens of the image acquisition device 13 is located between the inner ring 11 and the wearer's eyes, and the lens is abutted against the cover 111 by the elastic sleeve 131.

[0063] Reference Figure 1 The portion of the cover 111 near the lens end of the image acquisition device 13 is made of a transparent material. In one possible embodiment, a lens groove 1111 is formed along the thickness direction of the cover 111 at the position near the lens end of the image acquisition device 13. A transparent lens 1112 is fixedly connected within the lens groove 1111, and the lens end of the image acquisition device 13 is used to acquire eye images of the wearer through the transparent lens 1112. The transparent lens 1112 can be a polarizing film, etc., and this embodiment is not limited thereto.

[0064] Reference Figure 1 , Figure 7 , Figure 8 and Figure 9 An abutment piece 121 is fixedly connected to the end of the image acquisition unit 13 away from the lens end, and the abutment piece 121 is fixedly connected to the outer ring piece 12. Specifically, the abutment piece 121 may be a part of the FPC board 3211, etc., and this embodiment of the present disclosure does not limit it.

[0065] Reference, Figure 9 The side of the abutment piece 121 away from the image acquisition device 13 is set as the abutment surface 1211, and the abutment surface 1211 abuts against the inner wall of the extrusion groove 1132.

[0066] Therefore, it can be seen that the extrusion plate 113 in this disclosure has an extrusion groove 1132. After the extrusion plate 113 is installed relative to the inner ring plate 11, the extrusion groove 1132 can be used to observe whether the abutting surface 1211 of the abutting piece 121 abuts against the extrusion plate 113. This can reduce the possibility of misalignment or instability of the image acquisition device 13 relative to the extrusion plate 113 and the cover 111, thereby improving the connection stability between the outer ring plate 12 and the inner ring plate 11.

[0067] Reference Figure 9 A sponge sheet 1212 is placed between the abutting surface 1211 and the inner wall of the extrusion groove 1132, and the sponge sheet 1212 is in a state of being squeezed by the abutting surface 1211 and the inner wall of the extrusion groove 1132. In one possible embodiment, the sponge sheet 1212 is bonded to the abutting surface 1211 of the abutting piece 121.

[0068] Therefore, it can be seen that the sponge sheet 1212 in the compressed state in this disclosure can make the position of the image acquisition device 13 relative to the cover 111 and the compression plate 113 more fixed, thereby improving the stability of the connection between the inner ring sheet 11 and the outer ring sheet 12, and reducing the possibility of misalignment of the lens end of the image acquisition device 13 relative to the transparent lens 1112.

[0069] Reference Figure 10 , Figure 11 and Figure 12 A plurality of lamp slots 116 are provided through the inner ring plate 11 along the thickness direction of the inner ring plate 11. The plurality of lamp slots 116 are distributed on the inner ring plate 11 in the circumferential direction. An infrared lamp 122 is provided in each lamp slot 116. The end of each infrared lamp 122 near the outer ring plate 12 is fixedly connected to the outer ring plate 12. For example, the end of each infrared lamp 122 near the outer ring plate 12 is bonded to the outer ring plate 12. Each infrared lamp 122 is used to emit infrared light into the space between the inner ring plate 11 and the wearer's eyes.

[0070] Therefore, each infrared lamp 122 is used to emit invisible infrared light into the space between the inner ring plate 11 and the wearer's eyes, so as to provide light for the eye image acquisition of the image acquisition device 13 without affecting the wearer's visual experience.

[0071] Reference Figure 12 A transparent ring 14 is connected to the side of the inner ring 11 away from the outer ring 12, and the transparent ring 14 covers each lamp slot 116 on the inner ring 11. The transparent ring 14 can be a polarizer or the like, and this embodiment does not limit it.

[0072] Therefore, the transparent ring 14 can protect the infrared lamp 122 with minimal impact on the emitted light, reduce wear on the infrared lamp 122, and extend its service life.

[0073] This disclosure also provides an eye-tracking device, referring to... Figure 13 The eye-tracking device 2 includes an optical engine lens barrel 21 and the aforementioned eye-tracking structure 1;

[0074] Reference Figure 12 The optical-mechanical lens barrel 21 is used for image display. The optical-mechanical lens barrel 21 is located on the side of the outer ring plate 12 away from the inner ring plate 11, and the side of the outer ring plate 12 away from the inner ring plate 11 is connected to the optical-mechanical lens barrel 21. Therefore, the wearer can see the image displayed by the optical-mechanical lens barrel 21 through the area within the rings of the outer ring plate 12 and the inner ring plate 11. This image can be a dynamic image or a static image, etc., and this embodiment does not limit the specific image display.

[0075] Reference Figure 13The eye-tracking device 2 also includes a rotating ring 22, which is rotatably fitted onto the outer side of the optical engine tube 21. The rotating ring 22 is used to focus the optical engine tube 21 when rotating relative to it. Therefore, the wearer can rotate the rotating ring 22 relative to the optical engine tube 21 according to their own visual acuity to focus the optical engine tube 21, thus improving the wearer's experience of viewing images through the optical engine tube 21.

[0076] In one possible implementation, refer to Figure 14 The rotating ring 22 includes a first semi-ring 221 and a second semi-ring 222, both of which are semi-circular, and the first semi-ring 221 and the second semi-ring 222 are detachably connected. For example, the first semi-ring 221 and the second semi-ring 222 are plugged into each other. Therefore, the rotating ring 22, composed of the first semi-ring 221 and the second semi-ring 222, facilitates the assembly of the eye-tracking device 2. In another possible embodiment, the rotating ring 22 can also be a complete circular ring.

[0077] This disclosure also provides a smart glasses device for wearing on the face of a wearer near the eyes, see reference. Figure 15 The smart glasses device 3 includes a frame 31, a main unit 32, and two eye-tracking devices 2.

[0078] Reference Figure 15 One side of the frame 31 is close to the wearer's face, and two eye-tracking devices 2 are symmetrically mounted on the frame 31, with the two eye-tracking devices 2 located close to the wearer's eyes respectively; the main unit 32 is mounted on the side of the frame 31 away from the wearer's face, and each eye-tracking device 2 is connected to the main unit 32. The main unit 32 is used to control the optical-mechanical tube 21 in each eye-tracking device 2 to display.

[0079] In one possible implementation, refer to Figure 14 and Figure 15 Each eye-tracking device 2 has an image acquisition unit 13 connected to the host 32 via a BTB connector 321. The BTB connector 321 and the image acquisition unit 13 are connected via an FPC plate 3211. A receiving groove 211 is provided along the circumference of the optical engine barrel 21 to accommodate the FPC plate 3211 between the image acquisition unit 13 and the BTB connector 321. A rotating ring 22 can cover most of the receiving groove 211. The portion of the receiving groove 211 not covered by the rotating ring 22 can be covered by a shielding plate 212, which is bonded to the optical engine barrel 21, improving the aesthetics of the eye-tracking device 2.

[0080] Therefore, it can be seen that the wearer's eyes can view images through the optical engine tubes 21 of the two eye-tracking devices 2. During viewing, the image acquisition unit 13 in each eye-tracking device 2 can acquire eye images of the eye that the image acquisition unit 13 is close to. The host 32 can process the eye images acquired by the image acquisition unit 13 and control the smart glasses device 3 to execute corresponding programs. For example, if the eye image acquired by the image acquisition unit 13 shows that the eye is looking upward, then the smart glasses device 3 will be turned off.

[0081] In addition, since both the inner ring plate 11 and the outer ring plate 12 are sheet-like structures, their thickness is small, which can save space, reduce the distance between the optical engine tube 21 and the wearer's eyes, and improve the viewing experience.

[0082] Reference Figure 15 A ring-shaped soft padding strip 33 is fixedly connected to the side of the frame 31 closest to the wearer's face. The side of the soft padding strip 33 away from the frame 31 fits snugly against the wearer's face. The soft padding strip 33 can be made of soft materials such as sponge, and this embodiment does not limit the material used. Therefore, the deformation of the soft padding strip 33 allows it to fit more closely to the wearer's face, resulting in better light-blocking performance and improved user experience of the smart glasses device 3.

[0083] In addition, the eye-tracking structure 1 and the eye-tracking device 2 described above can also be applied to other XR (Extended Reality) products, and this disclosure does not limit them.

[0084] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should also understand that various modifications can be made to the embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. An eye-tracking structure, characterized in that, The eye-tracking structure (1) is designed to be worn on the eyes of the wearer and includes an inner ring (11), an outer ring (12), and an image acquisition device (13) for acquiring images of the wearer's eyes. Both the inner ring plate (11) and the outer ring plate (12) are annular plates; One side of the inner ring (11) is close to the wearer's eyes, and the side of the inner ring (11) away from the wearer's eyes abuts against one side of the outer ring (12). The inner ring (11) is connected to the cover (111) on the side near the wearer's eyes; The inner ring plate (11) has a slot (112) extending through it along the thickness direction near the cover (111), and the slot (112) communicates with the space inside the cover (111). The slot (112) is provided with a compression plate (113) that is detachably connected to the inner ring plate (11); The image acquisition device (13) abuts against the inner wall of the extrusion plate (113) and the cover (111), and the image acquisition device (13) is connected to the outer ring plate (12); An extrusion groove (1132) is provided on the extrusion plate (113) along the thickness direction of the extrusion plate (113); The lens end of the image acquisition device (13) is located between the inner ring (11) and the eyes of the wearer, and the lens end abuts against the inside of the cover (111); The image acquisition unit (13) has an abutment piece (121) connected to the end away from the lens end, and the abutment piece (121) is connected to the outer ring piece (12); The side of the abutment piece (121) away from the image acquisition device (13) is set as the abutment surface (1211), and the abutment surface (1211) abuts against the inner wall of the extrusion groove (1132).

2. The eye-tracking structure according to claim 1, characterized in that, A sponge sheet (1212) is abutting between the contact surface (1211) and the inner wall of the extrusion groove (1132), and the sponge sheet (1212) is in a state of being squeezed by the contact surface (1211) and the inner wall of the extrusion groove (1132).

3. The eye-tracking structure according to claim 1, characterized in that, At least one lamp groove (116) is provided through the inner ring plate (11) along the thickness direction of the inner ring plate (11); Each of the lamp slots (116) is provided with an infrared lamp (122), and each infrared lamp (122) is connected to the outer ring plate (12) at one end near the outer ring plate (12). Each infrared lamp (122) is used to emit infrared light into the space between the inner ring plate (11) and the eyes of the wearer.

4. The eye-tracking structure according to claim 3, characterized in that, A transparent ring (14) is connected to the side of the inner ring (11) away from the outer ring (12), and the transparent ring (14) covers each of the lamp slots (116) on the inner ring (11).

5. An eye-tracking device, characterized in that, The eye-tracking device (2) includes an optical engine lens barrel (21) and an eye-tracking structure (1) as described in any one of claims 1-4; The optical-mechanical lens barrel (21) is located on the side of the outer ring plate (12) away from the inner ring plate (11), and the side of the outer ring plate (12) away from the inner ring plate (11) is connected to the optical-mechanical lens barrel (21).

6. The eye-tracking device according to claim 5, characterized in that, The eye-tracking device (2) further includes a rotating ring (22), which is rotatably sleeved outside the optical engine barrel (21) base. The rotating ring (22) is used to focus the optical engine barrel (21) when rotating relative to the optical engine barrel (21).

7. The eye-tracking device according to claim 6, characterized in that, The rotating ring (22) includes a first half-ring (221) and a second half-ring (222), both of which are semi-circular, and the first half-ring (221) and the second half-ring (222) are detachably connected.

8. A smart glasses device, characterized in that, The smart glasses device (3) is designed to be worn on the face of the wearer and includes a frame (31), a main unit (32), and two eye-tracking devices (2) according to any one of claims 5-7. One side of the frame (31) is close to the wearer's face; Two eye-tracking devices (2) are symmetrically mounted on the frame (31), and the two eye-tracking devices (2) are respectively located close to the eyes of the wearer; The main unit (32) is mounted on the side of the frame (31) away from the wearer's face; Each of the eye-tracking devices (2) is connected to the host (32), which controls the optical-mechanical tube (21) in each of the eye-tracking devices (2) to display.

9. The smart glasses device according to claim 8, characterized in that, The side of the eyeglass frame (31) closest to the wearer's face is connected to a ring-shaped soft padding strip (33) along its length, and the side of the soft padding strip (33) away from the eyeglass frame (31) is in contact with the wearer's face.

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