Anti-shake testing device and anti-shake testing method of optical image stabilizer

Abstract

The application provides a kind of optical image stabilizer's anti-shake testing device and anti-shake testing method, optical image stabilizer's anti-shake testing device includes: rotary table;Motor is installed on the rotary table, the rotary table can provide the rotation of predetermined frequency and amplitude to the motor;Lens simulator is installed on the motor;Optical image stabilizer is connected with the motor and drives the motor to promote the lens simulator to move;Gyroscope can measure the vibration of the motor;Laser range finder can measure the distance between it and the lens simulator by laser.Compared with the prior art, the application uses laser ranging instead of the original image judgment mode, without waiting for the debugging of image sensor, also does not need to build the whole photographing system, thereby saving a lot of resources, also improves the efficiency of the whole system debugging.

Description

[0001] The present application relates to the technical field of anti-shake testing of optical image stabilizers, and particularly relates to an anti-shake testing device and method for optical image stabilizers.

[0002] The existing scheme generally uses a photographing system to take pictures before and after anti-shake is turned on, and compares the pictures before and after to determine the compensation ratio of the anti-shake. This scheme requires the motor to wait for the image sensor to be debugged after completion, and then the entire photographing system needs to be built and debugged before it can be used. The building and debugging of the photographing system requires a large amount of resources, and the debugging of the image sensor also requires time and cooperation with other manufacturers.

[0003] Therefore, there is an urgent need to provide a new technical solution to solve the above problems.

[0004] One of the purposes of the present application is to provide an anti-shake testing device and method for optical image stabilizers, which measures the actual displacement of the lens using a laser ranging method, and then calculates the compensation ratio of the anti-shake, without the need for a photographing system and an image sensor, thereby saving a large amount of resources and improving the efficiency of the entire system debugging.

[0005] According to one aspect of the present application, the present application provides an anti-shake testing device for optical image stabilizers, comprising: a turntable; a motor installed on the turntable, the turntable being capable of providing the motor with a predetermined frequency and amplitude of rotation; a lens simulator installed on the motor; an optical image stabilizer connected to the motor and driving the motor to push the lens simulator to move; a gyroscope capable of measuring the vibration of the motor; and a laser range finder capable of measuring the distance between the laser range finder and the lens simulator by laser.

[0006] ​​​Further, the anti-shake testing device of the optical image stabilizer performs the following operations during the anti-shake testing process: turning off the optical image stabilizer, starting the turntable to rotate at a predetermined frequency and amplitude, and the laser range finder collecting the distance between the laser range finder and the lens simulator within a predetermined time period to generate first shake measurement data; turning on the optical image stabilizer, starting the turntable to rotate at a predetermined frequency and amplitude, and the gyroscope measuring the vibration of the motor and generating vibration measurement data; the optical image stabilizer calculating compensation data according to the vibration measurement data provided by the gyroscope and driving the motor to perform vibration compensation based on the compensation data to push the lens simulator to move, at this time, the laser range finder collects the distance between the laser range finder and the lens simulator within a predetermined time period to generate second shake measurement data; and calculating the compensation stroke of the lens simulator according to the first shake measurement data and the second shake measurement data collected by the laser range finder and the rotation radius and rotation angle of the lens simulator, and calculating the compensation ratio of the optical image stabilizer according to the compensation stroke.

[0007] Further, the rotation axis of the turntable is adjusted to be consistent with the center of the lens simulator or the center of the bottom of the motor to determine the rotation radius of the lens simulator; and / or the predetermined laser measurement position on the lens simulator is calculated according to the rotation radius and rotation angle of the lens simulator when the turntable is not started, wherein the distance between the predetermined laser measurement position on the lens simulator and the rotation axis of the turntable is the rotation radius of the lens simulator; the rotation angle of the turntable is the rotation angle of the lens simulator; the shake measurement data is the difference between the maximum distance value or the minimum distance value measured by the laser range finder and the reference distance value, and the distance between the lens simulator and the laser range finder measured by the laser range finder is the reference distance value when the turntable is not started; and the rotation angle of the lens simulator can be measured by the gyroscope.

[0008] Further, the motor is provided with a hollow structure; the lens simulator includes a lens part and a mounting part protruding from the bottom surface of the lens part; the mounting part of the lens simulator is mounted in the hollow structure of the motor, and the lens part is located above the motor.

[0009] Further, the motor only pushes the lens simulator to move in a direction parallel to the surface of the motor.

[0010] According to another aspect of the present application, the present application provides a method for testing the anti-shake performance of an optical image stabilizer, which comprises: installing a lens simulator into a motor, installing the motor onto a rotating table, setting a predetermined frequency and amplitude of the rotating table; calculating a predetermined laser measuring position on the lens simulator according to the radius of rotation and the angle of rotation of the lens simulator when the rotating table is not activated; closing the optical image stabilizer, activating the rotating table to rotate at the predetermined frequency and amplitude, and collecting the distance between the laser range finder and the lens simulator within a predetermined time period to generate first shake measurement data; opening the optical image stabilizer, activating the rotating table to rotate at the predetermined frequency and amplitude, measuring the vibration of the motor by a gyroscope and generating vibration measurement data, calculating compensation data by the optical image stabilizer according to the vibration measurement data provided by the gyroscope, and driving the motor to compensate for the vibration based on the compensation data to push the lens simulator to move, at this time, the laser range finder collects the distance between the laser range finder and the lens simulator within a predetermined time period to generate second shake measurement data; calculating the compensation stroke of the lens simulator according to the first shake measurement data, the second shake measurement data collected by the laser range finder, and the radius of rotation and the angle of rotation of the lens simulator, and calculating the compensation ratio of the optical image stabilizer according to the compensation stroke.

[0011] Further, the distance between the predetermined laser measuring position of the lens simulator and the rotating shaft of the rotating table is the radius of rotation of the lens simulator; and the angle of rotation of the rotating table is the angle of rotation of the lens simulator.

[0012] Further, the radius of rotation of the lens simulator is determined by adjusting the rotating shaft of the rotating table to be consistent with the center of the lens simulator or the center of the bottom of the motor; and / or the shake measurement data is the difference between the maximum or minimum distance value measured by the laser range finder and a reference distance value, wherein the distance between the lens simulator and the laser range finder measured by the laser range finder when the rotating table is not activated is the reference distance value.

[0013] The angle of rotation of the lens simulator can be measured by the gyroscope.

[0014] Further, the motor is provided with a hollow structure; the lens simulator comprises a lens part and a mounting part protruding from the bottom surface of the lens part; the mounting part of the lens simulator is installed in the hollow structure of the motor, and the lens part is located above the motor.

[0015] Further, the motor only pushes the lens simulator to move in a direction parallel to the surface of the motor.

[0016] Compared with the prior art, the laser ranging is adopted instead of the original image judging mode, so that the image sensor does not need to be debugged, and the whole photographing system does not need to be built, thereby saving a large amount of resources and improving the efficiency of the whole system debugging. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor. Among them:

[0018] Figure 1 Front view of the motor in an embodiment of the present application;

[0019] Figure 2 Side view of the motor in an embodiment of the present application;

[0020] Figure 3 Front view of the lens simulator in an embodiment of the present application;

[0021] Figure 4 Side view of the lens simulator in an embodiment of the present application;

[0022] Figure 5 Rear view of the lens simulator in an embodiment of the present application;

[0023] Figure 6 Front view of the lens simulator and the motor assembled together in an embodiment of the present application;

[0024] Figure 7 Side view of the lens simulator and the motor assembled together in an embodiment of the present application;

[0025] Figure 8 Flow chart of the anti-shake test method of the anti-shake test device of the optical image stabilizer in an embodiment of the present application;

[0026] Figure 9 Schematic diagram of the relative position relationship of the motor, the lens simulator, the laser ranging device and the laser light path thereof when step 830 is performed in an embodiment of the present application;

[0027] Figure 10 Schematic diagram of the relative position relationship of the motor, the lens simulator, the laser ranging device and the laser light path thereof when step 840 is performed in an embodiment of the present application.

DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] As used in this description, the terms "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the application. The appearances of the phrases "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are the described features, structures, or characteristics of any one embodiment necessarily the same as any other embodiment. It is to be understood that the use of the term connected herein does not mean that the entities are directly connected to each other, unless expressly specified otherwise.

[0030] In the description of the present application, it needs to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation to the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "coupling" and the like should be understood in a broad sense; for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In order to meet the requirements of users on shooting quality, OIS (Optical Image Stabilizer) anti-shake technology has gradually been popularized in most terminal devices. The function of optical anti-shake technology is to avoid picture blur caused by hand shaking and other factors during shooting, thereby improving the clarity of imaging. The main principle is to increase a movable part driven by magnetic force in the lens group. When shaking occurs, the shaking angle is detected by a gyroscope, which is converted into the stroke that needs to be compensated by the lens. The current is changed to drive the lens to the corresponding position, so as to avoid large deflection of the light path, thereby achieving the purpose of compensation. In most cases, the compensation position generally requires the center of the lens to be pushed to the center position near the non-shaking position to ensure the final imaging effect. The existing OIS detection method is mostly realized by shooting. The camera is placed on a turntable, the corresponding shaking frequency and amplitude are set, and the compensation results are judged by comparing the imaging photos before and after compensation. Since shooting is involved, a complete shooting environment, corresponding light and corresponding test images are needed. The image part of the camera also needs to be debugged to take the results.

[0033] In order to start testing the effect of OIS in the motor stage only, the present application tests the position of the lens in the form of laser ranging, thereby calculating the corresponding compensation effect. This method only needs to add a dummy lens on the basis of the motor, and then add a laser range finder that must be used in the industry to perform the test. The image sensor does not need to be adjusted, and a complete shooting environment is not needed. Based on this, the present application provides an anti-shake test device and an anti-shake test method for an optical image stabilizer.

[0034] The anti-shake test device for an optical image stabilizer provided by the present application comprises a turntable (not marked), a motor 10, a lens simulator (or dummy lens) 20, an optical image stabilizer (not marked), a gyroscope (not marked) and a laser range finder 30. The motor 10 is installed on the turntable (not marked), and the turntable (not marked) can provide a predetermined frequency and amplitude of rotation for the motor 10. The lens simulator (or dummy lens) 20 is installed on the motor 10. The optical image stabilizer (not marked) is connected with the motor 10 and drives the motor 10 to push the lens simulator (or dummy lens) 20 to move. The gyroscope (not marked) can measure the vibration (or rotation) of the motor 10. The laser range finder 30 can measure the distance between the laser range finder 30 and the lens simulator 20 by laser.

[0035] Please refer to Figure 1 , which is a front view of the motor 10 in an embodiment of the present application. Please refer to Figure 2 , which is a side view of the motor 10 in an embodiment of the present application. Figure 1 and Figure 2The motor 10 shown is provided with a hollow structure 12.

[0036] Referring to Figure 3 As shown, it is a front view of the lens simulator (or fake lens) 20 in an embodiment of the present application; referring to Figure 4 As shown, it is a side view of the lens simulator (or fake lens) 20 in an embodiment of the present application; referring to Figure 5 As shown, it is a back view of the lens simulator (or fake lens) 20 in an embodiment of the present application. Figures 3-5 The lens simulator 20 shown includes a lens part 22 and a mounting part 24 protruding from the bottom surface of the lens part 22.

[0037] Referring to Figure 6 As shown, it is a front view of the lens simulator (or fake lens) 20 and the motor 10 assembled together in an embodiment of the present application; referring to Figure 7 As shown, it is a side view of the lens simulator (or fake lens) 20 and the motor 10 assembled together in an embodiment of the present application. In Figure 6 and Figure 7 In the embodiment shown, the mounting part 24 of the lens simulator 20 is installed in the hollow structure 12 of the motor 10, and the lens part 22 is located above the motor 10, so the lens simulator (or fake lens) 20 needs to be separately molded to ensure its installation accuracy and surface smoothness. In Figures 3-7 In the specific embodiment shown, the mounting part 24 of the lens simulator (or fake lens) 20 is a cylinder.

[0038] The anti-shake testing device of the optical image stabilizer provided by the present application needs to perform the following operations during the anti-shake testing process.

[0039] The optical image stabilizer (not identified) is turned off, the turntable (not identified) is started to rotate at a predetermined frequency and amplitude, and the laser range finder 30 collects the distance between it and the lens simulator 20 through laser measurement within a predetermined time length to generate first shake measurement data.

[0040] The optical image stabilizer (not identified) is turned on, the turntable (not identified) is started to rotate at a predetermined frequency and amplitude, the gyroscope (not identified) measures the vibration (or rotation) of the motor 10 and generates vibration measurement data, the optical image stabilizer (not identified) calculates compensation data according to the vibration measurement data provided by the gyroscope (not identified), and drives the motor 10 to compensate for vibration based on the compensation data to push the lens simulator (or fake lens) 20 to move, thereby compensating for shake. At this time, the laser range finder 30 collects the distance between it and the lens simulator 20 through laser measurement within a predetermined time length to generate second shake measurement data.

[0041] According to the first jitter measurement data and the second jitter measurement data collected by the laser range finder 30, and the rotation radius and the rotation angle of the lens simulator (or dummy lens) 20, the compensation stroke (i.e. the stroke or distance pushed) of the lens simulator (or dummy lens) 20 is calculated, and according to the compensation stroke, the compensation ratio of the optical image stabilizer (not identified) is calculated. Specifically, the compensation ratio of the optical image stabilizer (not identified) can be calculated according to the compensation stroke and the actual required lens stroke.

[0042] In one embodiment, by adjusting the rotation axis of the turntable (not identified) to be consistent with the center of the lens simulator (or dummy lens) 20 or the center of the bottom of the motor 10, the rotation radius of the lens simulator (or dummy lens) 20 can be determined.

[0043] In one embodiment, when the turntable is not started (or stationary), the predetermined laser measurement position on the lens simulator (or dummy lens) 20 is calculated according to the rotation radius and the rotation angle of the lens simulator (or dummy lens) 20, wherein the distance between the predetermined laser measurement position on the lens simulator (or dummy lens) 20 and the rotation axis of the turntable (not identified) is the rotation radius of the lens simulator (or dummy lens) 20; and the rotation angle of the turntable (not identified) is the rotation angle of the lens simulator (or dummy lens) 20.

[0044] In one embodiment, the jitter measurement data is the difference between the maximum distance value or the minimum distance value measured by the laser range finder 30 and the reference distance value, wherein the distance between the lens simulator (or dummy lens) 20 and the laser range finder 30 measured by the laser range finder 30 when the turntable (not identified) is not started is the reference distance value; and the rotation angle of the lens simulator (or dummy lens) 20 can be measured by the gyroscope (not identified).

[0045] In one embodiment, the motor 10 only pushes the lens simulator (or dummy lens) 20 to move in a direction parallel to the surface of the motor 10, and does not push the lens simulator (or dummy lens) 20 to move in a direction perpendicular to the surface of the motor 10.

[0046] According to another aspect of the present application, the present application provides a method for anti-shake testing of an anti-shake testing device of an optical image stabilizer, as shown in Figure 8 The flowchart of the anti-shake testing method of the anti-shake testing device of the optical image stabilizer in one embodiment of the present application is shown in Figure 8 The anti-shake testing method includes the following steps.

[0047] Step 810, install the lens simulator (or fake lens) 20 into the motor 10, install the motor 10 vertically on the turntable (not identified), and set the predetermined frequency and amplitude of the turntable (not identified). In an embodiment, by adjusting the rotation axis of the turntable (not identified) to be consistent with the center of the lens simulator (or fake lens) 20 or the center of the bottom of the motor 10, the rotation radius of the lens simulator (or fake lens) 20 can be determined.

[0048] Step 820, when the turntable is not started (or stationary), calculate the predetermined laser measurement position on the lens simulator (or fake lens) 20 according to the rotation radius and rotation angle of the lens simulator (or fake lens) 20, wherein the distance between the predetermined laser measurement position on the lens simulator (or fake lens) 20 and the rotation axis of the turntable (not identified) is the rotation radius of the lens simulator (or fake lens) 20; the rotation angle of the turntable (not identified) is the rotation angle of the lens simulator (or fake lens) 20.

[0049] Step 830, turn off the optical image stabilizer (not identified), start the turntable (not identified) to rotate at a predetermined frequency and amplitude, and the laser range finder 30 collects the distance between it and the lens simulator 20 through laser measurement within a predetermined time to generate first jitter measurement data.

[0050] Please refer to Figure 9 Fig. 8 shows a schematic diagram of the relative position relationship between the motor, the lens simulator, the laser range finder and its laser path when the step 830 is performed in an embodiment of the present application. In Figure 9 As can be seen in the embodiment shown in Fig. 8, the laser range finder 30 shoots laser from the side to the measurement position of the lens simulator (or fake lens) 20; in the case where the laser position (or laser path) remains unchanged, as the motor 10 rotates as a whole, the laser ranging result obtained by the laser range finder 30 will also change significantly, when the motor 10 rotates to the left, the laser ranging result becomes larger, and when the motor 10 rotates to the right, the laser ranging result becomes smaller.

[0051] Step 840, turn on the optical image stabilizer (not identified), start the turntable (not identified) to rotate at a predetermined frequency and amplitude, the gyroscope (not identified) measures the vibration (or rotation) of the motor 10 and generates vibration measurement data, the optical image stabilizer (not identified) calculates compensation data according to the vibration measurement data provided by the gyroscope (not identified), and drives the motor 10 to compensate for vibration based on the compensation data to push the lens simulator (or fake lens) 20 to move, thereby compensating for jitter, at this time, the laser range finder 30 collects the distance between it and the lens simulator 20 through laser measurement within a predetermined time to generate second jitter measurement data.

[0052] Please refer to Figure 10As shown, it is a schematic diagram of the relative position relationship between the motor, the lens simulator, the laser range finder and the laser light path when the step 840 is performed in an embodiment of the present application. Figure 10 As can be seen in the embodiment shown, after the optical image stabilizer (not identified) is turned on, as the vibration (or rotation) of the motor 10 is detected by the gyroscope, the motor 10 will push the position of the lens simulator (or dummy lens) 20 in the opposite direction to try to ensure the stability of the light path, and the relative change in the laser ranging result will be smaller in terms of laser ranging. Figure 10 In the specific embodiment shown, the motor 10 only pushes the lens simulator (or dummy lens) 20 to move in a direction parallel to the surface of the motor 10, and does not push the lens simulator (or dummy lens) 20 to move in a direction perpendicular to the surface of the motor 10.

[0053] In theory, before and after the optical image stabilizer (not identified) is turned on, the change in the laser ranging result measured by the laser range finder 30 will be minimal or even completely unchanged. In actual use, the stroke or distance of the lens simulator (or dummy lens) 20 pushed can also be obtained according to the change in the laser ranging result measured by the laser range finder 30 before and after the optical image stabilizer (not identified) is turned on, and the compensation ratio of the optical image stabilizer (not identified) can be obtained by conversion to confirm whether it can achieve the required compensation ratio.

[0054] Step 850, according to the first jitter measurement data and the second jitter measurement data collected by the laser range finder 30, and the rotation radius and rotation angle of the lens simulator (or dummy lens) 20, the compensation stroke (i.e. the stroke or distance pushed) of the lens simulator (or dummy lens) 20 is calculated, and the compensation ratio of the optical image stabilizer (not identified) is calculated according to the compensation stroke. Specifically, the compensation ratio of the optical image stabilizer (not identified) can be calculated according to the compensation stroke and the actual required lens stroke.

[0055] In an embodiment, the jitter measurement data is the difference between the maximum distance value or the minimum distance value measured by the laser range finder 30 and the reference distance value, and the distance between the laser range finder 30 and the lens simulator (or dummy lens) 20 measured by the laser range finder 30 is the reference distance value when the turntable (not identified) is not started; the rotation angle of the lens simulator (or dummy lens) 20 can be measured by the gyroscope (not identified).

[0056] In summary, the present application provides a kind of optical image stabilizer of anti-shake test device and anti-shake test method, which uses the way of laser ranging to measure the actual displacement of lens, and then calculates the compensation ratio of anti-shake, without needing to take a picture system and image sensor, thereby saving a lot of resources, and improving the efficiency of the whole system debugging.

[0057] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearance of the above-mentioned terms in various places in the specification does not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0058] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present application, and those skilled in the art can make changes, modifications and variations to the above-described embodiments within the scope of the present application.

Claims

1. A device for testing the anti-shake of an optical image stabilizer, characterized in that, It comprises: a rotating table; a motor installed on the rotating table, which can provide the motor with a predetermined frequency and amplitude of rotation; a lens simulator installed on the motor; an optical image stabilizer connected with the motor and driving the motor to push the lens simulator to move; a gyroscope capable of measuring the vibration of the motor; a laser range finder capable of measuring the distance between it and the lens simulator by laser, During the process of anti-shake test, it performs the following operations: turn off the optical image stabilizer, start the rotating table to rotate at a predetermined frequency and amplitude, and the laser range finder collects the distance between it and the lens simulator within a predetermined time to generate first jitter measurement data; turn on the optical image stabilizer, start the rotating table to rotate at a predetermined frequency and amplitude, and the gyroscope measures the vibration of the motor and generates vibration measurement data; the optical image stabilizer calculates compensation data according to the vibration measurement data provided by the gyroscope, and drives the motor to compensate for vibration based on the compensation data to push the lens simulator to move, at this time, the laser range finder collects the distance between it and the lens simulator within a predetermined time to generate second jitter measurement data; According to the first jitter measurement data, the second jitter measurement data collected by the laser range finder, and the rotation radius and rotation angle of the lens simulator, the compensation stroke of the lens simulator is calculated, and the compensation ratio of the optical image stabilizer is calculated according to the compensation stroke, and the rotation angle of the lens simulator can be measured by the gyroscope.

2. The anti-shake test device of the optical image stabilizer according to claim 1, wherein the rotation radius of the lens simulator is determined by adjusting the rotation axis of the rotating table to be consistent with the center of the lens simulator or the center of the bottom of the motor; and / or a predetermined laser measurement position on the lens simulator is calculated according to the rotation radius and rotation angle of the lens simulator when the rotating table is not started, wherein the distance between the predetermined laser measurement position on the lens simulator and the rotation axis of the rotating table is the rotation radius of the lens simulator, and the rotation angle of the lens simulator is the rotation angle of the lens simulator; the jitter measurement data is the difference between the maximum or minimum distance value measured by the laser range finder and the reference distance value, and the distance between the laser range finder and the lens simulator measured by the laser range finder when the rotating table is not started is the reference distance value.

3. The anti-shake test device of the optical image stabilizer according to claim 1, wherein the motor is provided with a hollow structure; the lens simulator comprises a lens part and a mounting part protruding from the bottom surface of the lens part; the mounting part of the lens simulator is installed in the hollow structure of the motor, and the lens part is located above the motor.

4. The anti-shake test device of the optical image stabilizer according to any one of claims 1-3, wherein The motor only pushes the lens simulator to move in a direction parallel to the surface of the motor.

5. A method of shake correction testing of a shake correction testing apparatus of an optical image stabilizer, characterized by, It comprises: installing the lens simulator into the motor, installing the motor onto the turntable, setting the predetermined frequency and amplitude of the turntable; calculating the predetermined laser measurement position on the lens simulator according to the radius of rotation and the angle of rotation of the lens simulator when the turntable is not started; turning on the optical image stabilizer, starting the turntable to rotate at a predetermined frequency and amplitude, and the laser range finder collecting the distance between the laser range finder and the lens simulator within a predetermined time to generate first jitter measurement data; turning on the optical image stabilizer, starting the turntable to rotate at a predetermined frequency and amplitude, and the gyroscope measuring the vibration of the motor and generating vibration measurement data, the optical image stabilizer calculating compensation data according to the vibration measurement data provided by the gyroscope and driving the motor to compensate for vibration based on the compensation data to push the lens simulator to move, at this time, the laser range finder collects the distance between the laser range finder and the lens simulator within a predetermined time to generate second jitter measurement data; calculating the compensation stroke of the lens simulator according to the first jitter measurement data and the second jitter measurement data collected by the laser range finder, and the radius of rotation and the angle of rotation of the lens simulator, and calculating the compensation ratio of the optical image stabilizer according to the compensation stroke, the rotation angle of the lens simulator can be measured by the gyroscope.

6. The anti-shake test method of the anti-shake test device of the optical image stabilizer according to claim 5, wherein the distance between the predetermined laser measurement position of the lens simulator and the rotation axis of the turntable is the radius of rotation of the lens simulator; the rotation angle of the turntable is the rotation angle of the lens simulator.

7. The anti-shake test method of the anti-shake test device of the optical image stabilizer according to claim 6, wherein the radius of rotation of the lens simulator is determined by adjusting the rotation axis of the turntable to be consistent with the center of the lens simulator or the center of the bottom of the motor; and / or the jitter measurement data is the difference between the maximum or minimum distance value measured by the laser range finder and the reference distance value, and the distance between the laser range finder and the lens simulator measured by the laser range finder when the turntable is not started is the reference distance value.

8. The anti-shake test method of the anti-shake test device of the optical image stabilizer according to claim 5, wherein the motor is provided with a hollow structure; the lens simulator comprises a lens part and a mounting part protruding from the bottom surface of the lens part; the mounting part of the lens simulator is installed in the hollow structure of the motor, and the lens part is located above the motor.

9. The anti-shake test method of the anti-shake test device of the optical image stabilizer according to any one of claims 5-8, wherein the motor only pushes the lens simulator to move in a direction parallel to the surface of the motor.

Images