An eyeglass fitting device

Abstract

The utility model discloses a kind of lens matching device, including machine body, control unit, chin support and camera module;The machine body includes fixed base, support pipe column, swing upper cover and swing driving mechanism;The swing upper cover can rotate around support pipe column, the chin support is located on the support pipe column and is above the head end of the upper cover, and the camera module is located at the tail end of the upper cover.The lens matching device disclosed by the utility model realizes automatic operation, in addition to the front face image or the front head image of user can be shot to obtain accurate front information parameter, the side face image or the head side image of left and right sides of user can also be shot, so as to obtain accurate side information parameter, ensure that lens matching parameter accuracy, and the glasses matched according to lens matching parameter also meet the face feature and head feature of user, improve the wearing experience of user.

Description

Technical Field

[0001] This utility model relates to the field of eyeglass fitting instruments, and in particular to an eyeglass fitting device. Background Technology

[0002] With the rapid development of modern technology, personalized eyeglass fitting services are playing an increasingly prominent role in the eyewear industry. While traditional eyeglass fitting methods can meet basic eyeglass needs, they have many shortcomings in terms of measurement accuracy, user experience, and fitting efficiency.

[0003] For example, Chinese invention patent CN108392171A discloses a device for measuring the distance between eyeglasses and the eyes, nose, and ears before fitting glasses; Chinese utility model patent CN219736221U discloses a precise eye-glass distance measuring instrument. Existing solutions rely entirely on manual adjustment and measurement, resulting in low efficiency and poor accuracy, and are no longer sufficient to meet the requirements.

[0004] To overcome these shortcomings, virtual try-on devices and new types of eyeglass fitting devices have gradually emerged in the market. For example, Chinese invention patent CN113985628A discloses a method, device, and computer-readable storage medium for virtual eyeglass fitting. However, these devices still have many limitations in practical applications. Although virtual try-on devices can provide a certain try-on experience, because they are based on two-dimensional or three-dimensional models, they cannot completely reproduce the visual effect and comfort of wearing real eyeglasses.

[0005] The existing center positioning device (i-Terminal2) automates the process, employing autofocus technology to automatically adjust focus without manual adjustment. It captures facial features through facial center positioning scanning technology to calculate key frontal information parameters, including distance pupillary distance, near pupillary distance, monocular pupillary distance, frame height, pupillary width, frame width, bridge distance, and nasal root distance. However, because it uses frontal center positioning, the frontal scan results are relatively accurate. The results for the side profile are calculated through image fitting, leading to insufficient precision in the side information parameters required for fitting glasses. Side information parameters include tilt angle and interpupillary distance. Inaccurate side information parameters result in lenses that are not in the optimal position or angle. For example, an excessively large or small forward tilt angle may affect visual perception, while lenses that are too close to the eyes (touching the eyelashes) or too far from the eyes may cause instability, thus impacting the user's wearing experience. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new type of eyeglass fitting device that achieves automated operation. In addition to capturing a frontal image of the user's face or head to obtain accurate frontal information parameters, it can also capture side images of the user's face or head from the left and right sides to obtain accurate side information parameters, thus ensuring the accuracy of the eyeglass fitting parameters. The eyeglasses fitted according to the eyeglass fitting parameters also match the user's facial and head features, improving the user's wearing experience.

[0007] This utility model provides a lens fitting device, including a body, a control unit, a chin rest, and a camera module;

[0008] The body includes a fixed base, a support column disposed on the fixed base, a swinging top cover disposed on the fixed base and capable of rotating around the support column, and a swinging drive mechanism for driving the swinging top cover to swing back and forth relative to the fixed base.

[0009] The top end of the swing cover is pivotally connected to the fixed base, and the swing drive mechanism is connected to the top end of the cover.

[0010] The support column extends upward through the upper cover end, and the chin support is disposed on the support column and located above the upper cover end;

[0011] The upper cover of the swing cover extends upward at its tail end, and the camera module is located at the tail end of the upper cover. The camera of the camera module is located on the visible side of the tail end face of the upper cover and is higher than the chin rest.

[0012] The camera module and the swing drive mechanism are respectively connected to the control unit via signals.

[0013] In one of the alternative technical solutions, the swing angle of the swinging top cover relative to the fixed base is between -90° and +90°.

[0014] In one of the alternative technical solutions, the camera module includes two cameras, which are positioned on the same horizontal line and spaced apart on the visible side of the rear end face of the top cover.

[0015] In one of the alternative technical solutions, a far pupillary distance target window is provided at the top of the tail end of the upper cover, and / or a near pupillary distance target is provided on the side of the tail end of the upper cover facing the head end of the upper cover, and the near pupillary distance target is located below the camera.

[0016] In one of the alternative technical solutions, an attraction light is provided on the visible side of the tail end of the upper cover, and the attraction light is signal-connected to the control unit;

[0017] And / or, the top of the swing cover is provided with a supplementary light, which is signal-connected to the control unit.

[0018] In one of the alternative technical solutions, the support column is connected to a lifting drive mechanism for driving the chin rest to rise and fall, and the lifting drive mechanism is signal-connected to the control unit.

[0019] In one of the optional technical solutions, the top end of the cover is provided with a power-on button and a power-off button, and the power-on button and the power-off button are respectively connected to the control unit.

[0020] In one of the alternative technical solutions, an annular forehead support is connected to the support column, the chin support is located inside the forehead support, and a flexible forehead pad is provided on the top edge of the forehead support.

[0021] In one of the alternative technical solutions, the swing drive mechanism includes a drive motor, a driving wheel, and a driven wheel;

[0022] The drive motor is mounted on the fixed base and is signal-connected to the control unit.

[0023] The driving wheel is connected to the motor shaft of the drive motor, and the driven wheel is arranged coaxially with the support column and connected to the top end of the upper cover.

[0024] In one of the alternative technical solutions, the fixed base is provided with a monitoring sensor for monitoring the rotation angle of the driven wheel, and the monitoring sensor is signal-connected to the control unit.

[0025] The above technical solution has the following beneficial effects:

[0026] The eyeglass fitting device provided by this utility model includes a main body, a control unit, a chin rest, and a camera module. The main body includes a fixed base and a swinging top cover. A support column is provided on the fixed base. The top end of the swinging top cover is fitted onto the support column and is pivotally connected to the fixed base, thereby allowing the swinging top cover to swing left and right relative to the fixed base about the support column as an axis. A swinging drive mechanism is provided between the fixed base and the swinging top cover to drive the swinging top cover to swing left and right.

[0027] The chin support is located above the top end of the cover and is supported by a support column. The chin support is used to lift the user's chin and plays a positioning role.

[0028] The top cover of the swing-type cover curves upwards at its rear end, where the camera module is located. Its camera protrudes from the visible side of the rear end of the cover and is positioned above the chin rest. The camera module captures facial data and transmits it to the control unit, which then calculates the parameters required for fitting the glasses.

[0029] When a user needs glasses, the chin is supported by the chin rest, the swing cover is in its initial position, and the camera is facing the face, allowing the camera module to capture an image of the user's face or head. Then, the swing drive mechanism drives the swing cover to one side of the fixed base (e.g., the left), until the camera faces the user's side profile (e.g., the left side), and the camera module captures an image of the user's side profile or head from that side. Next, the swing drive mechanism drives the swing cover to the other side of the fixed base (e.g., the right side), until the camera faces the user's other side profile (e.g., the right side), and the camera module captures an image of the user's side profile or head from that side.

[0030] In summary, the eyeglass fitting device provided by this utility model achieves automated operation. In addition to capturing a frontal image of the user's face or head to obtain accurate frontal information parameters, it can also capture side images of the user's face or head from the left and right sides to obtain accurate side information parameters, ensuring the accuracy of the eyeglass fitting parameters. The eyeglasses fitted according to the eyeglass fitting parameters also match the user's facial and head features, improving the user's wearing experience. Attached Figure Description

[0031] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0032] Figure 1 A perspective view of a lens fitting device provided in an embodiment of the present invention from one angle;

[0033] Figure 2 A cross-sectional view of a lens fitting device provided in an embodiment of this utility model;

[0034] Figure 3 for Figure 1 The illustrated lens fitting device is shown in cross-sectional view along the joint surface between the fixed base and the swing top cover.

[0035] Figure 4 A perspective view of a lens fitting device provided in one embodiment of the present invention from another angle;

[0036] Figure 5 A front view of a lens fitting device provided in an embodiment of this utility model;

[0037] Figure 6 A schematic diagram showing the signal connections of each electrical component;

[0038] Figure 7 A schematic diagram showing the upper cover frame swinging towards the base frame after being driven by the swing drive mechanism.

[0039] Figure 8 A schematic diagram showing the upper cover frame swinging to the other side of the base frame after being driven by the swing drive mechanism. Detailed Implementation

[0040] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0041] like Figure 1-2 , Figure 4-8 As shown, an embodiment of the present invention provides a lens fitting device, including a body 1, a control unit 2, a chin rest 3, and a camera module 4.

[0042] The body 1 includes a fixed base 11, a support column 12 disposed on the fixed base 11, a swinging top cover 13 disposed on the fixed base 11 and capable of rotating around the support column 12, and a swinging drive mechanism 14 for driving the swinging top cover 13 to swing back and forth relative to the fixed base 11.

[0043] The top end 131 of the swing cover 13 is pivotally connected to the fixed base 11, and the swing drive mechanism 14 is connected to the top end 131 of the cover.

[0044] The support column 12 extends upward through the upper cover head end 131, and the chin support 3 is located on the support column 12 and above the upper cover head end 131.

[0045] The upper cover 13 extends upward from the tail end 132 of the swing cover 13. The camera module 4 is located at the tail end 132 of the upper cover. The camera 41 of the camera module 4 is located on the visible side of the tail end 132 of the upper cover and is higher than the chin support 3.

[0046] The camera module 4 and the swing drive mechanism 14 are respectively connected to the control unit 2 via signals.

[0047] The eyeglass fitting device provided by this utility model includes a body 1, a control unit 2, a chin rest 3, and a camera module 4, etc.

[0048] The main body of the device 1 includes a fixed base 11 and a swinging top cover 13. The main body of the device 1 can adopt a conventional support structure or a biomimetic structure, such as a whale shape, to increase childlike fun. High fun will encourage children to cooperate actively, reduce the workload of optometrists, and thus improve work efficiency.

[0049] A support column 12 is provided on the fixed base 11. Preferably, the support column 12 is located at the front end or head end of the fixed base 11. The support column 12 can be a solid column or a hollow tube. The lower end of the support column 12 is directly connected to the fixed base 11, or it can be connected through a connecting structure. The upper end of the support column 12 extends above the swing cover 13.

[0050] The upper cover head 131 of the swing cover 13 is fitted onto the support column 12 with a clearance fit. The axis of the support column 12 coincides with the rotation center of the swing cover 13. The upper cover head 131 is pivotally connected to the fixed base 11. A pivoting structure, such as a bearing or a shaft, can be configured between the upper cover head 131 and the fixed base 11. The swing cover 13 can swing left and right relative to the fixed base 11 about the support column 12 as an axis. If necessary, a protective sleeve 134 can be provided on the top of the upper cover head 131, through which the support column 1 passes.

[0051] A swing drive mechanism 14 is provided between the fixed base 11 and the swing cover 13 to drive the swing cover 13 to swing left and right. The swing drive mechanism 14 can be a cylinder, hydraulic cylinder, motor, etc. The main body of the swing drive mechanism 14 is located on the fixed base 11, and the output end of the swing drive mechanism 14 is connected to the swing cover 13. Specifically, the output end of the swing drive mechanism 14 is connected to the head end 131 of the cover.

[0052] The control unit 2 can be a chip, controller, control circuit board, etc., used to control the switching operation of various electrical components. The control unit 2 can be optionally located in the cavity of the fixed base 11 or the swing cover 13.

[0053] The chin support 3 is located above the top end 131 of the upper cover. The chin support 3 is connected to the upper end of the support column 12 and is supported by the support column 12. The chin support 3 is used to support the user's chin and plays a positioning role.

[0054] The tail end 132 of the swing cover 13 is upturned. The tail end 132 of the cover can be vertically connected to the rear end of the swing cover 13. An arc-shaped connection structure can also be used to transition between the tail end 132 of the cover and the rear end of the swing cover 13.

[0055] A camera module 4 is located at the rear end 132 of the top cover, and the camera module 4 employs a camera. The camera 41 of the camera module 4 protrudes from the visible side of the rear end 132 of the top cover and is higher than the chin rest 3 to capture the user's face. The visible side of the rear end 132 of the top cover is the side facing the top end 131 of the top cover, which can be seen by the user.

[0056] The camera module 4 is used to capture facial or head image data and transmit it to the control unit 2, which then calculates the various parameters required for eyeglass fitting. The technology by which the control unit 2 calculates the various parameters required for eyeglass fitting based on the captured images is existing technology and will not be described in detail here.

[0057] When a user needs glasses, the chin is supported by the chin rest 3, the upper cover 13 swings to its initial position, and the camera 41 faces the face, capturing a frontal head image of the user using the camera module 4. The control unit 2 can calculate the frontal information parameters required for glasses fitting based on the frontal head image data.

[0058] Then, the swing drive mechanism 14 drives the swing cover 13 to swing towards one side (e.g., the left side) of the fixed base 11, until the camera 41 faces the side of the user's face or head (e.g., the left side), and the camera module 4 captures an image of the user's face or head on that side. The control unit 2 can calculate the side information parameters required for fitting glasses based on the side image or head image data.

[0059] Then, the swing drive mechanism 14 drives the swing cover 13 to swing to the other side (e.g., the right side) of the fixed base 11, until the camera 41 faces the side of the user's face or head on the other side (e.g., the right side), and the camera module 4 captures an image of the user's face or head on that side. The control unit 2 can calculate the side information parameters required for fitting glasses based on the image data of the face or head on that side.

[0060] Users can operate the swing drive mechanism 14 by pressing buttons or using a remote control, or the control unit 2 can automatically control the swing drive mechanism 14 to operate or stop according to the preset shooting time.

[0061] In summary, the eyeglass fitting device provided by this utility model achieves automated operation. In addition to capturing a frontal image of the user's face or head to obtain accurate frontal information parameters, it can also capture side images of the user's face or head from the left and right sides to obtain accurate side information parameters, ensuring the accuracy of the eyeglass fitting parameters. The eyeglasses fitted according to the eyeglass fitting parameters also match the user's facial and head features, improving the user's wearing experience.

[0062] In one embodiment, the body 1 is in the shape of a biomimetic whale, with the head end 131 of the upper cover resembling the shape of a whale's head and the tail end 132 of the upper cover resembling the shape of a whale's tail.

[0063] In one embodiment, such as Figure 7-8As shown, the fixed base 11 includes a base support 110, which serves as the skeleton structure of the fixed base 11. The main body of the swing drive mechanism 14 is fixed to the base support 110. A skin or plastic shell is provided on the outer periphery of the base support 110 to form the fixed base 11.

[0064] The swing cover 13 includes a horizontally extending transverse frame 130, the front end of which forms the frame of the cover head end 131. The rear end of the transverse frame 130 is connected to a rearwardly extending transition frame 135, and the upper end of the transition frame 135 is connected to a vertically extending vertical frame 134. The vertical frame 134 forms the frame of the cover tail end 132, and the camera module 4 is connected to the vertical frame 134. The front end of the transverse frame 130 is fitted onto the support column 12 and is connected to the base bracket 110 via a pivot structure. The output end of the swing drive mechanism 14 is connected to the transverse frame 130. A skin or plastic shell is provided around the outer periphery of the transverse frame 130, the transition frame 135, and the vertical frame 134 to form the swing cover 13.

[0065] In one embodiment, such as Figure 7-8 As shown, the swing angle of the top cover 13 relative to the fixed base 11 is between -90° and +90°. When the left and right swings to the extreme position, the camera 41 can face the user's side face. If swinging to the left of the fixed base 1 is a positive swing, then swinging to the right of the fixed base 1 is a negative swing, and vice versa.

[0066] In one embodiment, such as Figure 1 and Figure 4-5 As shown, the camera module 4 includes two cameras 41, which are located on the same horizontal line and spaced apart on the visible side of the rear end 132 of the top cover.

[0067] In this embodiment, the camera module 4 employs a binocular camera, which has two cameras 41, enabling more accurate object recognition and positioning. The binocular camera simultaneously captures images from different angles using the two cameras 41, thereby achieving stereoscopic vision and depth perception, resulting in superior performance in areas such as face recognition and background blurring.

[0068] The two cameras 41 are on the same horizontal line and spaced at a preset distance. When the swing cover 13 swings to one side of the fixed base 11, one camera 41 is roughly facing the user's side face; when the swing cover 13 swings to the other side of the fixed base 11, the other camera 41 is roughly facing the user's side face.

[0069] In one embodiment, such as Figure 1 and Figure 4-5As shown, a far pupillary distance target window 133 is provided at the top of the tail end 132 of the upper cover, and / or a near pupillary distance target 15 is provided on the side of the tail end 132 of the upper cover facing the head end 131 of the upper cover, and the near pupillary distance target 15 is located below the camera 41.

[0070] The distance interpupillary distance (PIPD) target window 133 is used to fix the PIPD target or to allow the user's eyes to see the distant PIPD target through the window 133. Distance interpupillary distance (DIPD) refers to the distance between the centers of the pupils of both eyes when looking at a distant object. The PIPD target generally uses a clear, easily recognizable image or marker, such as a bright green target. Depending on the actual needs, the PIPD target can be placed within or outside the PIPD target window 133; in this case, the PIPD target window 133 serves to prevent obstruction of the view.

[0071] When the shape of the upper cover tail end 132 is designed to resemble a whale tail, the fork of its tail fin naturally forms a distant pupillary distance target window 133.

[0072] The near pupillary distance target 15 can be a pattern, screen, or lamp, and the lamp can be a single lamp, a ring lamp, etc. Near pupillary distance refers to the distance between the centers of the pupils of both eyes when the patient fixates on a near target (usually 30-40 cm in front of their eyes). Compared to distance pupillary distance, near pupillary distance is usually smaller. While a specific "target" is not mentioned as frequently as in distance pupillary distance measurement, the subject does need to fixate on a near target for accurate measurement. In this embodiment, configuring the near pupillary distance target 15 helps to quickly determine the patient's near pupillary distance.

[0073] Multiple near pupillary distance targets 15 can be placed at intervals as needed.

[0074] In one embodiment, such as Figure 1-2 and Figure 4-5 As shown, an attraction light 16 is provided on the visible side of the tail end 132 of the upper cover, and the attraction light 16 is connected to the control unit 2 by signal. And / or, a supplementary light 17 is provided on the top of the swinging upper cover 13, and the supplementary light 17 is connected to the control unit 2 by signal.

[0075] In this embodiment, optionally, an attraction light 16 is provided at the tail end 132 of the upper cover to attract the user's attention. The attraction light 16 can use various methods such as flashing colored lights, breathing lights, or flowing lights. Before the measurement begins, the attraction light 16 is turned on to attract the subject. When the camera module 4 starts shooting, the attraction light 16 is turned off to avoid affecting the shooting effect of the camera module 4. Optionally, after the measurement is completed, the camera module 4 is automatically turned back on.

[0076] In this embodiment, optionally, a supplementary light 17 is provided on the top of the swing cover 13, which is turned on when the camera module 4 is working to provide supplementary light to the pupil. The supplementary light 17 is turned on to provide supplementary light when measuring data such as interpupillary distance / pupil height.

[0077] Preferably, the supplementary light 17 is an infrared supplementary light, which is not dazzling, and the camera module 4 accordingly has infrared imaging function.

[0078] The supplementary light 17 can be mounted on the horizontal frame 130 and tilted forward and upward. A light-emitting hole is provided on the skin or plastic shell of the swing cover 13.

[0079] In one embodiment, such as Figure 2 As shown, the support column 12 is connected to a lifting drive mechanism 7 for driving the chin support 3 to rise and fall, and the lifting drive mechanism 7 is signal connected to the control unit 2.

[0080] The lifting drive mechanism 7 can adopt a structure such as a cylinder, hydraulic cylinder, or motor screw. It is connected to the support column 12 and the chin support 3, so that the height of the chin support 3 can be adjusted so that the user's pupil can be aligned with the camera 41.

[0081] Of course, the support column 12 also adopts an upper and lower segmented structure. The lifting drive mechanism 7 is connected between the upper and lower segments. The chin support 3 is connected to the upper segment of the support column 12. The lifting of the chin support 3 is adjusted by driving the upper segment of the support column 12 to lift.

[0082] In normal conditions, the chin support 3 is in its initial position, which is the lowest position. After the user completes the inspection, when the swing cover 13 resets, the lifting drive mechanism 7 drives the chin support 3 to reset.

[0083] In one embodiment, such as Figure 2 As shown, the support column 12 includes a support tube 121 and a support column 122 located above the support tube 121. The support tube 121 is fixed in the fixed base 11, and the upper cover end 131 is sleeved on the support tube 121 and can rotate around the support tube 121. The support column 122 is coaxially arranged with the support tube 121. The lower end of the support column 122 is connected to the upper end of the support tube 121 through an elastic element, and the upper end of the support column 122 extends above the upper cover end 131 / protective sleeve 134. The chin support 3 is fixed to the upper end of the support column 122.

[0084] The lifting drive mechanism 7 adopts a motor-screw structure, which includes a screw motor 71 and a screw 72. The screw motor 71 is mounted in the fixed base 11, and the screw 72 passes through the screw motor 71 and the support tube 121. The upper end of the screw 72 is pivotally connected to the support column 122. The screw 72 supports the support column 122 and can rotate relative to the support column 122. The upper end of the screw 72 can be mounted in the lower end groove of the support column 122 via a bearing.

[0085] The rotation of the lead screw motor 71 drives the screw 72 to move up and down in a rotational manner. The assembly method of the lead screw motor 71 and the screw 72 is the subject of existing technology and will not be described in detail here.

[0086] As needed, a guide structure is provided between the top cover end 131 / protective sleeve 134 and the support column 122 to guide the support column 122 to move up and down. For example, a combination of axially extending limiting ribs and limiting grooves also serves to prevent the support column 122 from rotating. When the screw 72 moves up and down in a rotating manner, since its upper end is pivotally connected to the support column 122 and the support column 122 does not rotate, the support column 122 is driven to move up and down, thereby driving the chin support 3 to adjust its height.

[0087] In one embodiment, such as Figure 2 As shown, a limit switch 73 is provided at the top end 131 of the upper cover, and a position triggering element is provided on the screw 72 or the support column 122. When the screw 72 drives the support column 122 to rise to the maximum height, the triggering element triggers the limit switch 73, and the lead screw motor 71 stops rotating. In one embodiment, as shown... Figure 1 and Figure 4 As shown, the top end 131 of the upper cover is provided with a power-on button 18 and a power-off button 19. The power-on button 18 and the power-off button 19 are respectively connected to the control unit 2, so that the user under test can control the power-on or power-off.

[0088] Preferably, the power button 18 and the power off button 19 are located on opposite sides of the top end 131 of the upper cover, making it convenient for the user to control with both hands.

[0089] In one embodiment, such as Figure 1-2 and Figure 4-5 As shown, a ring-shaped forehead support 5 is connected to the support column 12, and the chin support 3 is located inside the forehead support 5. A flexible forehead pad 51 is provided on the top edge of the forehead support 5.

[0090] In this embodiment, a forehead support 5 is configured to position the user's head. During use, the chin rests on the chin rest 3, and the user's forehead rests on the forehead pad 51, resulting in good positioning.

[0091] In one embodiment, such as Figure 1-3As shown, the swing drive mechanism 14 includes a drive motor 141, a drive wheel 142, and a driven wheel 143.

[0092] The drive motor 141 is mounted on the fixed base 11 and is connected to the control unit 2 via signal.

[0093] The drive wheel 142 is connected to the motor shaft of the drive motor 141, and the driven wheel 143 is arranged coaxially with the support column 12 and connected to the top end 131 of the upper cover.

[0094] In this embodiment, the swing drive mechanism 14 adopts a motor gear combination, which includes a drive motor 141, a driving wheel 142 and a driven wheel 143.

[0095] The drive motor 141 is mounted on the fixed base 11, specifically on the base bracket 110. The drive wheel 142 is connected to the motor shaft of the drive motor 141. The driven wheel 143 is fixedly connected to the top end 131 of the upper cover, specifically, the driven wheel 143 is fixedly connected to the transverse frame 130. The driven wheel 143 is coaxially arranged with the support column 12 and is sleeved on the support column 12.

[0096] The drive motor 141 drives the drive wheel 142 to rotate in the forward or reverse direction, which in turn drives the driven wheel 143 to rotate in the forward or reverse direction, thereby causing the swing cover 13 to swing left and right.

[0097] In one embodiment, such as Figure 3 As shown, a monitoring sensor 6 for monitoring the rotation angle of the driven wheel 143 is provided on the fixed base 11. The monitoring sensor 6 is connected to the control unit 2 via a signal. The monitoring sensor 6 can be a photoelectric sensor, a Hall sensor, a limit switch, etc.

[0098] Since the camera module 4 needs to take pictures from the front, left and right sides respectively, it is necessary to monitor the three positions of the swinging cover 13.

[0099] The initial state is when the swing cover 13 is completely on the fixed base 11. At this time, the camera module 4 is directly behind the chin support 3, and the swing or rotation angle of the swing cover 13 is 0.

[0100] When the swing cover 13 swings to the left limit position, it is approximately +90°, and when the swing cover 13 swings to the right limit position, it is approximately -90°.

[0101] The rotation angle of the driven wheel 143 is the same as the rotation angle of the swing cover 13. The default state is that the swing cover 13 is in the initial state.

[0102] When capturing frontal and side image data, the swing drive mechanism 14 is in a stopped state, and the rotation angle of the driven wheel 143 is 0.

[0103] After the front and side images are captured, the swing cover 13 is driven to swing forward (e.g., swing to the left) by about 90°. When the monitoring sensor 6 detects that the driven wheel 143 rotates forward by 90°, it sends a signal to the control unit 2 to control the swing drive mechanism 14 to stop.

[0104] After the front or left side image is captured, the swing cover 13 is driven to swing in the opposite direction (e.g., to the right) by about 180°. When the monitoring sensor 6 detects that the driven wheel 143 rotates 180° in the opposite direction, it sends a signal to the control unit 2 to control the swing drive mechanism 14 to stop.

[0105] After the image on the right or opposite side is captured, the swing cover 13 is driven to swing forward and reset, swinging about 90°. When the monitoring sensor 6 detects that the driven wheel 143 rotates forward 90°, it sends a signal to the control unit 2 to control the swing drive mechanism 14 to stop, and the swing cover 13 resets to the initial position.

[0106] The motor involved in this utility model can be a stepper motor or a servo motor.

[0107] The "signal connection" involved in this utility model refers to the connection of two components through a wire or through a wireless connection to achieve signal transmission.

[0108] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0109] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.

Claims

1. A lens fitting device, characterized in that, Includes the body, control unit, chin rest, and camera module; The body includes a fixed base, a support column disposed on the fixed base, a swinging top cover disposed on the fixed base and capable of rotating around the support column, and a swinging drive mechanism for driving the swinging top cover to swing back and forth relative to the fixed base. The top end of the swing cover is pivotally connected to the fixed base, and the swing drive mechanism is connected to the top end of the cover. The support column extends upward through the upper cover end, and the chin support is disposed on the support column and located above the upper cover end; The upper cover of the swing cover extends upward at its tail end, and the camera module is located at the tail end of the upper cover. The camera of the camera module is located on the visible side of the tail end face of the upper cover and is higher than the chin rest. The camera module and the swing drive mechanism are respectively connected to the control unit via signals.

2. The eyeglass fitting device according to claim 1, characterized in that, The swing angle of the upper cover relative to the fixed base is between -90° and +90°.

3. The eyeglass fitting device according to claim 1, characterized in that, The camera module includes two cameras, which are positioned on the same horizontal line and spaced apart on the visible side of the rear end face of the top cover.

4. The eyeglass fitting device according to claim 1, characterized in that, The top of the tail end of the upper cover is provided with a far pupillary distance target window, and / or, the side of the tail end of the upper cover facing the head end of the upper cover is provided with a near pupillary distance target, and the near pupillary distance target is located below the camera.

5. The eyeglass fitting device according to claim 1, characterized in that, An attraction light is provided on the visible side of the tail end of the upper cover, and the attraction light is signal-connected to the control unit; And / or, the top of the swing cover is provided with a supplementary light, which is signal-connected to the control unit.

6. The eyeglass fitting device according to claim 1, characterized in that, The support column is connected to a lifting drive mechanism for adjusting the chin support, and the lifting drive mechanism is signal-connected to the control unit.

7. The eyeglass fitting device according to claim 1, characterized in that, The top cover is equipped with a power-on button and a power-off button, which are respectively connected to the control unit.

8. The eyeglass fitting device according to claim 1, characterized in that, A ring-shaped forehead support is connected to the support column, and the chin support is located inside the forehead support. A flexible forehead pad is provided on the top edge of the forehead support.

9. The eyeglass fitting device according to any one of claims 1-8, characterized in that, The swing drive mechanism includes a drive motor, a driving wheel, and a driven wheel; The drive motor is mounted on the fixed base and is signal-connected to the control unit. The driving wheel is connected to the motor shaft of the drive motor, and the driven wheel is arranged coaxially with the support column and connected to the top end of the upper cover.

10. The eyeglass fitting device according to claim 9, characterized in that, The fixed base is equipped with a monitoring sensor for monitoring the rotation angle of the driven wheel, and the monitoring sensor is signal-connected to the control unit.

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