Bending degree testing device

Abstract

The embodiment of the invention provides a bending degree testing device which is applied to glasses and comprises a movable assembly, a driving piece and a photosensitive assembly, the movable assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with a left glasses leg of the glasses, and the second connecting piece is connected with a right glasses leg of the glasses; the driving piece is used for driving the movable assembly to move so as to adjust the opening and closing degree of the glasses; the photosensitive assembly is arranged on one side of the movable assembly and used for detecting the bending degree of the glasses.

Description

Technical Field

[0001] This application relates to the field of augmented reality technology, and more specifically, to a bending degree testing device. Background Technology

[0002] AR smart glasses offer a novel interactive experience by overlaying virtual information onto the user's field of vision. However, current AR smart glasses commonly suffer from deformation issues during wear, which can affect the device's optical performance and user experience. For example, when using 6DOF calibration and sensor calibration techniques to accurately display virtual information, ignoring the glasses' deformation will prevent the calibrated parameters from reaching their optimal state in actual use, thus impacting the user experience.

[0003] To avoid deformation affecting the optical performance and user experience of AR smart glasses, it is necessary to test the bendability of the glasses. However, traditional bend testing typically uses a fixture with a fixed bendability, which can only test the bendability of glasses with a fixed opening degree. It is not applicable to bendability testing with multiple opening degrees, has poor flexibility, and this fixed bendability method leads to errors in the test results, affecting the accuracy of bendability testing for AR glasses. Summary of the Invention

[0004] The purpose of this application is to provide a new technical solution for a bending degree testing device.

[0005] In a first aspect, this application provides a bending degree testing device for eyeglasses, comprising:

[0006] The active component includes a first connector and a second connector, the first connector being connected to the left temple of the glasses and the second connector being connected to the right temple of the glasses;

[0007] A driving element for driving the movable component to adjust the opening degree of the glasses;

[0008] A photosensitive component, located on one side of the movable component, is used to detect the curvature of the glasses.

[0009] Optionally, the active component further includes:

[0010] A support member includes a main body, a first side, and a second side, which are movably connected. A first connecting member is disposed on the first side, and a second connecting member is disposed on the second side. The main body is used to support the frame of the glasses.

[0011] Optionally, the driving element includes:

[0012] Base;

[0013] A lead screw, which is disposed on the base;

[0014] The first slider is movably connected to the first side portion, the first slider is threadedly connected to the first end of the lead screw, and the first slider is movably disposed on the base along the axial direction of the lead screw.

[0015] The second slider is movably connected to the second side portion, the second slider is threadedly connected to the second end of the lead screw, and the second slider is movably disposed on the base along the axial direction of the lead screw;

[0016] An electric motor is connected to the lead screw to drive the lead screw to rotate.

[0017] Optionally, the base includes a first support column and a second support column, and the lead screw is disposed between the first support column and the second support column.

[0018] Optionally, the first support column is equipped with a first rangefinder for collecting a first distance between the first slider and the first support column, and the second support column is equipped with a second rangefinder for collecting a second distance between the second slider and the second support column.

[0019] Optionally, the photosensitive component includes a light-emitting plate and a photosensitive plate, which are disposed opposite to each other on both sides of the movable component. The photosensitive plate is used to detect the curvature of the glasses.

[0020] Optionally, the light-emitting panel is provided with multiple light sources arranged in a uniform manner.

[0021] Optionally, the photosensitive component further includes a camera, which is mounted on the base and is used to detect the curvature of the glasses.

[0022] Optionally, the base includes a third support column, and the camera is mounted on the third support column.

[0023] Optionally, the camera is slidable along a first direction of the base.

[0024] According to the bending degree testing device provided in this application embodiment, the eyeglasses can be fixed to the testing device by the first connector and the second connector, ensuring that the eyeglasses will not slip during bending degree testing and adjustment of the opening degree, and can be adjusted according to the target opening degree (i.e., the target temple distance) while ensuring that the temples remain taut, thereby reducing the error of the bending degree test. The movable component is driven by a driving component, allowing for flexible adjustment of the eyeglass opening degree, facilitating bending degree testing at different opening degrees. The photosensitive component can acquire projected images of the eyeglasses at different opening degrees, and the bending degree of the eyeglasses can be determined based on these projected images, improving the accuracy of the bending degree test.

[0025] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0027] Figure 1 This is one of the structural schematic diagrams of the bending degree testing device provided in the embodiments of this application;

[0028] Figure 2 This is a second schematic diagram of the bending degree testing device provided in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Eyeglasses; 11. Left temple; 12. Right temple; 13. Frame;

[0031] 2. Movable component; 21. First connector; 22. Second connector; 23. Support component;

[0032] 23. Support component; 231. Main body; 232. First side part; 233. Second side part;

[0033] 3. Driving component; 31. Base; 32. First slider; 33. Second slider; 34. Motor; 35. Lead screw; 36. First rangefinder; 37. Second rangefinder; 38. Connecting shaft;

[0034] 31. Base; 311. First support column; 312. Second support column; 313. Third support column;

[0035] 4. Photosensitive component; 41. Light-emitting plate; 42. Photosensitive plate; 43. Camera. Detailed Implementation

[0036] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0037] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0038] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0039] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0041] The bending degree testing device provided in this application embodiment will be described in detail below with reference to the accompanying drawings. The first and second connectors can fix the eyeglasses to the testing device, ensuring that the eyeglasses will not slip during bending degree testing and adjustment of the opening angle. It can be adjusted according to the target opening angle (i.e., the target temple spacing) and ensures that the temples remain taut, thereby reducing the error in the bending degree test. The moving components are driven by a driving component, allowing for flexible adjustment of the eyeglass opening angle, facilitating bending degree testing at different opening angles. The photosensitive component can acquire projected images of the eyeglasses at different opening angles, and the bending degree of the eyeglasses can be determined based on these images, improving the accuracy of the bending degree test.

[0042] See Figure 1 and Figure 2 This application exemplarily illustrates a bending degree testing apparatus.

[0043] The bending degree testing device provided in this application embodiment is applied to eyeglasses, and its structure can be found in [reference needed]. Figure 1 and Figure 2 As shown, the device includes: a moving component 2, a driving component 3, and a photosensitive component 4.

[0044] The movable component 2 includes a first connector 21 and a second connector 22. The first connector 21 is connected to the left temple 11 of the glasses 1, and the second connector 22 is connected to the right temple 12 of the glasses 1. The driving component 3 is used to drive the movable component 2 to adjust the opening degree of the glasses 1. The photosensitive component 4 is located on one side of the movable component 2 and is used to detect the bending degree of the glasses 1.

[0045] The aforementioned glasses can be AR smart glasses or other glasses that require bending testing, such as reading glasses, sunglasses, etc. There are no restrictions here.

[0046] The first connector 21 is used to fix the left temple 11 of the glasses, and the second connector 22 is used to fix the right temple 12 of the glasses.

[0047] In one example, the first connector 21 and the second connector 22 are located as follows: Figure 1 The positions shown are as indicated. At this time, the first connector and the second connector can be, for example, clips, to secure the left temple and right temple of the glasses respectively when the glasses 1 is placed on the movable component 2.

[0048] In another example, the first connector 21 and the second connector 22 are located as follows: Figure 2 The positions shown are as indicated. At this point, the first and second connectors can be, for example, hinges, to connect to the ends of the left and right temples respectively, to secure the left and right temples.

[0049] It should be noted that, Figure 1 and Figure 2 China only Figure 2 The structure of the glasses 1 fixed to the bending degree testing device is shown. Figure 1 Eyeglasses 1 are not shown.

[0050] With the temples of the glasses fixedly connected to the movable component 2, the driving component 3 drives the movable component 2 to move, and the distance between the temples of the glasses changes accordingly, that is, the opening degree of the glasses changes. In other words, the opening degree of the glasses is the distance between the temples of the glasses.

[0051] The photosensitive component 4 is located on the side facing the active component 2 to capture a frontal image of the glasses 1, and then determine the curvature of the glasses 1 based on the frontal image.

[0052] It should be noted that the method of determining the curvature of glasses based on the projected image of the glasses is well known in the art and will not be elaborated here.

[0053] The specific process for conducting the bending degree test based on the disclosed device is as follows:

[0054] First, connect the left temple 11 of the glasses 1 to the first connector 21, and connect the right temple 12 to the second connector 22. Then, drive the first connector 21 and the second connector 22 to move through the drive unit 3 to adjust the opening degree of the glasses to the target opening degree. Then, collect the projection image of the glasses at the target opening degree through the photosensitive component 4, and then determine the bending degree of the glasses based on the projection image.

[0055] According to the bending degree testing device provided in the embodiments of this application, the glasses can be fixed to the testing device by the first connector and the second connector, which can ensure that the glasses will not slip during the bending degree test and the adjustment of the opening degree, and can be adjusted according to the target opening degree (i.e., the target temple distance) and ensure that the temples always remain straight, thereby reducing the error of the bending degree test.

[0056] By driving the moving components, the opening degree of the glasses can be flexibly adjusted, facilitating bending degree testing at different opening degrees. The photosensitive component can collect projected images of the glasses at different opening degrees, and the bending degree of the glasses can be determined based on these projected images, which can improve the accuracy of bending degree testing of glasses.

[0057] In some embodiments, such as Figure 2 As shown, the active component 2 also includes a support member 23, which includes a main body 231, a first side 232 and a first side 233. The main body 231, the first side 232 and the first side 233 are movably connected. A first connector 21 is disposed on the first side 232 and a first connector 22 is disposed on the first side 233. The main body 231 is used to support the frame 13 of the glasses 1.

[0058] Specifically, the active component 2 also includes a support 23 for supporting the glasses.

[0059] In some examples, the shape of the support 23 is the same as or similar to that of the glasses to better fit the structure of the glasses and facilitate support for the glasses.

[0060] like Figure 1 As shown, the support member 23 includes a main body 231, a first side 232 and a second side 233. The first end of the first side 232 is movably connected to the first end of the main body 231, and the first end of the second side 233 is movably connected to the second end of the main body 231.

[0061] The active connection can be a hinge or other common active connection methods.

[0062] The first connector 21 is located at the middle of the first side portion 232, and the second connector 23 is located at the middle of the second side portion 233.

[0063] The main body 231 has a support surface (not shown) for supporting the eyeglass frame 13.

[0064] According to the embodiments of this application, by setting a support member and providing a first connector and a second connector on the support member to connect the temples of the glasses, it is convenient to fix the glasses on the support member while also supporting the glasses to avoid the projected image of the glasses being significantly different from the actual glasses due to the glasses being tilted, thereby further reducing the error in bending degree detection and improving the accuracy of bending degree detection.

[0065] In some embodiments, the drive unit 3 includes: a base 31, a lead screw 35, a first slider 32, a second slider 33, and a motor 34.

[0066] The lead screw 35 is mounted on the base 31 along a second direction. This second direction can be the direction between the left temple 11 and the right temple 12. A first slider 32 is movably connected to the second end of the first side portion 232, threadedly connected to the first end of the lead screw 35, and movably mounted on the base 31 along the axial direction of the lead screw 35. A second slider 33 is movably connected to the second end of the second side portion 233, threadedly connected to the second end of the lead screw 35, and movably mounted on the base 31 along the axial direction of the lead screw 35. A motor 34 is connected to either the first or second end of the lead screw 35 via a connecting shaft 38 to drive the lead screw 35 to rotate.

[0067] In some embodiments, the lead screw 35 may be a reverse lead screw to facilitate adjustment of the temple spacing.

[0068] In some embodiments, the motor 34 can drive the lead screw to rotate upon receiving a drive command.

[0069] According to an embodiment of this application, when the motor receives a drive command, it drives the lead screw to rotate axially. While the lead screw rotates, the first and second sliders, threadedly connected to the lead screw, move axially along the lead screw to adjust the distance between the left and right temples, i.e., to adjust the opening degree of the glasses. This structure allows for flexible adjustment of the opening degree, and by controlling the motor with commands, it is convenient to perform bending tests on the glasses at different opening degrees.

[0070] In some embodiments, the base 31 includes a first support column 311 and a second support column 312, and a lead screw 35 is disposed between the first support column 311 and the second support column 312.

[0071] Specifically, the lead screw 35 is disposed on the base 31 along the direction of the interval between the first support column 311 and the second support column 312.

[0072] In some embodiments, the first support column 311 is provided with a first rangefinder 36 for collecting a first distance between the first slider 32 and the first support column 311, and the second support column 312 is provided with a second rangefinder 37 for collecting a second distance between the second slider 33 and the second support column 312.

[0073] Specifically, the first rangefinder 36 is located on the side of the first support column 311 near the first slider 32, and the second rangefinder 37 is located on the side of the second support column 312 near the second slider 33, and the first rangefinder and the second rangefinder are opposite each other.

[0074] In some examples, the first and second rangefinders can be infrared rangefinders, etc.

[0075] In some embodiments, the photosensitive component 4 includes a plurality of light sources disposed at a central position between the first support post 311 and the second support post 312.

[0076] Based on this embodiment, by comparing the first distance and the second distance before acquiring the eyeglass image, and when the first distance and the second distance are equal, it can be determined that the eyeglass is at the center position between the first support column 311 and the second support column 312. At this time, the eyeglass can receive a vertical and uniform light source, thereby making the projected image of the eyeglass smaller than the actual eyeglass, and further improving the accuracy of the eyeglass bending test.

[0077] In addition, the actual opening degree of the glasses can be indirectly calculated through the first and second distances, thereby enabling the opening degree of the glasses to be adjusted by the cooperation of the first and second rangefinders and the driving component. This improves the accuracy of the opening degree adjustment and avoids the problem of inaccurate bending test degree caused by the actual opening degree of the glasses not reaching the target opening degree, reducing the test error of bending degree and improving the accuracy of bending degree test.

[0078] In existing technologies, to facilitate the calculation of the bending degree of eyeglasses, industrial cameras are often used to capture images of the eyeglasses at a certain opening degree; that is, the photosensitive component 4 is an industrial camera, and the bending degree of the eyeglasses is then detected based on these images. However, due to the low resolution of industrial cameras, the accuracy of bending degree detection based on camera images is low.

[0079] Based on this, the inventors have provided a light-emitting plate 41 and a photosensitive plate 42 on both sides of the movable component 2. That is, in some embodiments, the photosensitive component 4 includes a light-emitting plate 41 and a photosensitive plate 42, which are disposed opposite to each other on both sides of the movable component 2. The photosensitive plate 42 is used to detect the bending degree of the glasses 1.

[0080] The light-emitting plate 41 and the photosensitive plate 42 are disposed on opposite sides of the movable component 2, and are arranged opposite to each other. Furthermore, the photosensitive plate 42 is a high-resolution photosensitive plate, that is, the resolution of the photosensitive plate 42 is greater than the resolution of the industrial camera.

[0081] By positioning the light-emitting plate 41 and the photosensitive plate 42 on opposite sides of the active component 2, the error between the frontal image of the glasses captured by the photosensitive plate and the actual glasses can be reduced. Capturing the projected image of the glasses using a high-resolution photosensitive plate improves the clarity of the captured projected image, further enhancing the accuracy of the bending degree test.

[0082] However, using a high-resolution photosensitive plate 42 to capture projected images of the glasses at different opening degrees is costly. To reduce costs while meeting the clarity requirements of the projected images for bending degree testing, the inventors proposed a technical solution that combines a lower-resolution photosensitive plate and a lower-resolution industrial camera to detect the bending degree of glasses.

[0083] Based on this, in some embodiments, such as Figure 1 As shown, the photosensitive component 4 includes a light-emitting plate 41, a photosensitive plate 42, and a camera 43.

[0084] The photosensitive plate 42 has a low resolution and is used to capture the projected image of the glasses.

[0085] The camera 43 is located at the center between the first support column 311 and the second support column 312 of the base 31, and is used to capture a frontal image of the glasses to detect the bending degree of the glasses 1.

[0086] According to embodiments of this application, a camera captures an image of the glasses, and a photosensitive plate captures a projected image. When calculating the bending degree, the image of the glasses and the projected image can be compared to determine whether the glasses are tilted forward or backward (i.e., whether the glasses are parallel to the photosensitive plate). Furthermore, if tilting is determined, the glasses can be adjusted promptly to reduce the error between the projected image and the actual glasses, thus improving the accuracy of the bending degree test. Conversely, if the glasses are determined not to be tilted, the bending degree of the glasses can be detected based on either the image of the glasses or the projected image.

[0087] In some embodiments, the light-emitting plate 41 is provided with a plurality of uniformly arranged light sources. These plurality of uniformly arranged light sources can form a uniform, direct, parallel beam of light to illuminate the glasses, so that the photosensitive plate can acquire a projected image with smaller errors than the actual glasses, thereby improving the accuracy of bending degree detection.

[0088] In some embodiments, the base 31 includes a third support column 313 located at the center between the first support column 311 and the second support column 312, and the camera 43 is disposed on the third support column 313.

[0089] By placing the camera on the third support column, the height difference between the camera and the glasses can be reduced, making it easier for the camera to capture glasses images that are less different from real glasses, thereby improving the accuracy of bending degree detection based on glasses images captured by the camera.

[0090] Since different types of glasses have different sizes, in order to facilitate the camera to capture images of glasses of different sizes to detect the degree of bending, in some embodiments, the camera 43 is slidable along the first direction of the base 31.

[0091] Specifically, the first direction is perpendicular to the second direction, which is the direction in which the left and right temples of the glasses are spaced apart. The first direction can also be referred to as the direction of the distance between the camera and the glasses.

[0092] The distance between the camera and the glasses can be adjusted by sliding the camera along the first direction, which facilitates the adjustment of the distance to capture a complete image of the glasses, thereby improving the applicability of the bending degree testing device to bending degree testing of different types of glasses and expanding the scope of application of the bending degree testing device.

[0093] According to the bending degree testing device provided in the embodiments of this application, the glasses can be fixed to the testing device by the first connector and the second connector, which can ensure that the glasses will not slip during the bending degree test and the adjustment of the opening degree, and can be adjusted according to the target opening degree (i.e., the target temple distance) and ensure that the temples always remain straight, thereby reducing the error of the bending degree test.

[0094] By driving the moving components, the opening degree of the glasses can be flexibly adjusted, facilitating bending degree testing at different opening degrees. The photosensitive component can collect projected images of the glasses at different opening degrees, and the bending degree of the glasses can be determined based on these projected images, which can improve the accuracy of bending degree testing of glasses.

[0095] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0096] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A bending degree testing device, applied to eyeglasses, characterized in that, include: The active component includes a first connector and a second connector, the first connector being connected to the left temple of the glasses and the second connector being connected to the right temple of the glasses; A driving element for driving the movable component to adjust the opening degree of the glasses; A photosensitive component, located on one side of the movable component, is used to detect the curvature of the glasses.

2. The apparatus according to claim 1, characterized in that, The activity component also includes: A support member includes a main body, a first side, and a second side, which are movably connected. A first connecting member is disposed on the first side, and a second connecting member is disposed on the second side. The main body is used to support the frame of the glasses.

3. The apparatus according to claim 2, characterized in that, The driving component includes: Base; A lead screw, which is disposed on the base; The first slider is movably connected to the first side portion, the first slider is threadedly connected to the first end of the lead screw, and the first slider is movably disposed on the base along the axial direction of the lead screw. The second slider is movably connected to the second side portion, the second slider is threadedly connected to the second end of the lead screw, and the second slider is movably disposed on the base along the axial direction of the lead screw; An electric motor is connected to the lead screw to drive the lead screw to rotate.

4. The apparatus according to claim 3, characterized in that, The base includes a first support column and a second support column, and the lead screw is disposed between the first support column and the second support column.

5. The apparatus according to claim 4, characterized in that, The first support column is equipped with a first distance measuring device for collecting a first distance between the first slider and the first support column, and the second support column is equipped with a second distance measuring device for collecting a second distance between the second slider and the second support column.

6. The apparatus according to claim 1, characterized in that, The photosensitive component includes a light-emitting plate and a photosensitive plate, which are disposed opposite to each other on both sides of the movable component. The photosensitive plate is used to detect the curvature of the glasses.

7. The apparatus according to claim 6, characterized in that, The light-emitting panel is equipped with multiple evenly arranged light sources.

8. The apparatus according to claim 6 or 7, characterized in that, The photosensitive component also includes a camera, which is mounted on the base and is used to detect the curvature of the glasses.

9. The apparatus according to claim 8, characterized in that, The base includes a third support column, and the camera is mounted on the third support column.

10. The apparatus according to claim 9, characterized in that, The camera is slidable along a first direction of the base.

Images