TW201833527A - Vibration detection system detecting the change in the coordinate value, the sharpness or the gray scale of the image of the feature graphic by an innovative hardware design - Google Patents

Abstract

The invention relates to a vibration detection system, comprising at least a vibration unit, a fixture unit, a detection unit, and a display unit. The vibration detection system of this invention is a lens vibration detection system which uses a frequency conversion and multi-axis vibrating machine to detect whether the lens in the lens is loose and thus causes the optical axis to shift, and mainly effectively detects the change in the coordinate value, sharpness or gray scale of the image of the feature graphics by an innovative hardware design, so as to learn the problem that whether the optical axis is shifted due to the looseness of the lens in the lens. This invention indeed eliminates the defective lenses products in time before they are assembled into a camera, thereby achieving the advantages of reduced assembly and manufacturing costs and subsequent maintenance costs.

Description

   Vibration detection system   

The invention relates to a vibration detection system, in particular to a lens vibration detection system that uses frequency conversion and a multi-axis vibration machine to detect whether the lens in the lens is loose and causes the optical axis to shift.

Generally, when assembling the lens, the lens is loaded into the lens barrel in order during assembly. In order to fix the lens at a predetermined position in the lens barrel, in practice, glue is often used to secure it; however, due to many restrictions such as the design of the lens barrel , Sometimes it is impossible to use glue to fix the lens firmly on the lens barrel, so that the lens has the disadvantage of lens shift and loose after the vibration test, resulting in optical axis shift; currently in the optical factory to detect the light caused by the loose lens The axis shift often has to wait for the entire lens to be assembled into a camera before the detection action can be performed, and it is impossible to detect whether the optical axis is loose due to vibration; in this way, the problem of optical axis shift due to poor lens quality will eventually lead to The entire set of cameras was scrapped, which virtually increased the cost of assembly and manufacturing.

In view of this, one of the inventors applied for "Integrated Vibration Detection Method and Device" No. I55479 on August 6, 103 of the Republic of China to solve the above-mentioned problems, please refer to FIG. 1, It is a schematic diagram of the system installation of the traditional integrated vibration detection device, wherein the integrated vibration detection device includes a detection jig (A) and a detection machine (B) provided on a vibrating machine, wherein the detection jig (A) includes a lens The fixing module (C) is used to fix the lens to be tested (D); a detection pattern (E) is installed on the side of the lens to be tested (D); the detection pattern (E) has more than one detection pattern; an image forming The unit is installed on the side of the test lens (D) opposite to the test chart (E) to sense the light reflected by the test chart (E) and form a test image; when the light passes through the test lens (D) To the inspection map (E), the inspection map (E) reflects the light to the image forming unit to form an image, and the inspection machine (B) compares the images of the inspection map (E) to instantly detect whether the optical axis of the lens is shifted due to vibration ; However, the following problems are often encountered during actual implementation:

1. The natural resonance frequency of an abnormally assembled lens will vary due to actual conditions. The single frequency vibrator used in this patent cannot effectively and accurately detect only slightly abnormal lenses.

2. In the mass production practice of the factory, some abnormal lenses are more sensitive to vibration tests in certain directions. The unidirectional vibrator used in this patent cannot effectively and accurately detect these abnormally shifted lenses.

3. The vibration detection method of the lens is mainly to make the light pass through the lens to be tested (D) and hit the detection pattern (E) on the side of the lens to be tested (D), and then reflect the light to the detection pattern (E) The image is formed on the image forming unit on the other side of the lens under test (D). Because the distance between the lens under test (D), the inspection image (E), and the image forming unit is very limited, the inspector sets up the lens under test (D) so that When the imaging is in the image forming unit, it is often easy to hit other components because of the lack of space, which may cause damage to related components.

Therefore, how to effectively design the combination of innovative hardware and software so that the inspection personnel can effectively avoid the above-mentioned shortcomings of the previous technology when performing lens looseness detection, and indeed achieve the vibration detection of the lens to know whether the lens in the lens The problem of optical axis shift caused by looseness is eliminated immediately before the camera is assembled into the camera, to achieve the purpose of reducing assembly and manufacturing costs. It is still necessary for the lens looseness detection system and other related industry developers and relevant researchers Continuous efforts to overcome and solve the problem.

Now, in view of the fact that the above-mentioned lens lens looseness detection still has many shortcomings in actual implementation, it is a tireless spirit that is improved by its rich professional knowledge and many years of practical experience. Based on this, the invention was developed.

The main purpose of the present invention is to provide a vibration detection system, especially a lens vibration detection system that uses frequency conversion and a multi-axis vibration machine to detect whether the lens in the lens is loose and causes the optical axis to shift, mainly through innovative hardware Designed to effectively detect changes in the coordinate value, sharpness or gray scale of the image of the feature graphic to know whether the lens inside the lens is loose due to optical axis shift and other problems. It is true that the lens is immediately assembled before the camera is assembled The elimination of defective products can achieve the advantages of reducing assembly and manufacturing costs and subsequent maintenance costs.

In order to achieve the above-mentioned implementation objective, the inventor proposes a vibration detection system that performs loose detection of at least one lens to be tested. The vibration detection system includes at least a vibration unit, a jig unit, a detection unit, and a display unit ; The vibration unit includes a power source, a platform connected to the power source, and a cover provided on the platform, wherein the power source drives the platform by frequency conversion and multi-axial mode to generate vibration, and the cover is connected to the platform An accommodating space is formed; the jig unit is arranged on the platform and accommodated in the accommodating space, the jig unit includes a light source, at least one fixed module, at least one target area corresponding to the fixed module, and a sensor The test module and a relay lens (Relay Lens), where the light source is mounted on the inner end of the mask to provide a light to the lens to be tested, the fixed module corresponds to the lens to be tested, and each target area is A feature pattern is correspondingly provided, and the target area is provided on one side of the lens under test to reflect light passing through the lens under test, and the sensing module is provided on the other side of the lens under test corresponding to the target area. In order to receive the variation feature graphic image formed by the light reflected by the target area, the relay lens is set between the lens to be tested and the sensing module to increase the focal length of the lens to be tested; the detection unit is electrically connected to the sensor Module, the detection unit receives the variation feature graphic image received by the sensing module, and compares the difference between the variation feature graphic image and an original feature graphic image with an algorithm, and obtains a difference value, when the difference value exceeds At a predetermined threshold, the detection unit sends out a signal; the display unit is electrically connected to the detection unit, the display unit displays the original feature graphic image, the variant feature graphic image, and the difference value, and the display unit sends out after receiving the signal A warning signal.

In the vibration detection system as described above, the characteristic pattern includes one of a cross mark pattern, a square pattern, a dot pattern or a sharpness pattern, or a combination of two or more.

In the vibration detection system as described above, the sensing module is one of a photocoupled device (Charge Coupled Device, CCD) or a complementary metal oxide semiconductor (Complementary Metal-Oxide-Semiconductor, CMOS) and the like.

In the vibration detection system as described above, the original feature graphic image is an image of the feature graphic obtained when the lens to be tested is stationary.

The vibration detection system as described above, wherein the detection unit compares the difference value formed by one or a combination of two or more features such as the coordinate value, sharpness or gray scale between the variegated feature image and the original feature image And compare with the critical value.

In the vibration detection system as described above, the detection unit is electrically connected to the sensing module and the display unit via a signal transmission line.

In the vibration detection system as described above, the warning signal is presented as one type or a combination of two or more such as sound, light, image or vibration.

In this way, the vibration detection system of the present invention uses an innovative hardware design to effectively detect changes in the coordinate value, sharpness, or grayscale of the image of the characteristic pattern, so as to know whether the lens in the lens causes light due to looseness For problems such as shaft shift, it is true that the defective products of the lens are eliminated immediately before being assembled into the camera, which achieves advantages such as reducing assembly and manufacturing costs and subsequent maintenance costs; in addition, the vibration detection system of the present invention mainly uses a frequency conversion type The multi-axis vibrating machine detects the looseness of the lens in the lens, which effectively enables the lens with only a slight looseness to be detected due to the natural resonance frequency of the frequency conversion vibration, or the lens with some abnormalities is more sensitive to the vibration frequency in certain directions Since the multi-axial vibration is also detected, compared with the traditional detection method using a single vibration frequency, it can indeed achieve the advantages of improving the detection ability of the lens lens; furthermore, the vibration detection system of the present invention mainly sets the relay lens Between the lens to be tested and the sensing module, it can not only effectively increase the imaging focal length of the lens to be tested, but also effectively avoid the collision and damage between components due to the user's desire to adjust the imaging focal length of the lens to be tested in practical operation. The shortcomings do achieve the advantages of reducing production costs and subsequent maintenance costs.

     (Traditional integrated vibration detection device)     

(A) ‧‧‧Test fixture

(B) ‧‧‧Inspection machine

(C) ‧‧‧Fixed module

(D) ‧‧‧ lens to be tested

(E) ‧‧‧Detection chart

     (Vibration detection system of the present invention)     

(1) ‧‧‧Vibration detection system

(11) ‧‧‧Vibration unit

(111) ‧‧‧Power source

(112) ‧‧‧platform

(113) ‧‧‧Mask

(114) ‧‧‧accommodation space

(12) ‧‧‧ Fixture unit

(121) ‧‧‧Light source

(122) ‧‧‧Fixed module

(123) ‧‧‧ target area

(1231) ‧‧‧Characteristics

(124) ‧‧‧sensing module

(125) ‧‧‧Relay lens

(13) ‧‧‧Detection unit

(14) ‧‧‧Display unit

(15) ‧‧‧Signal transmission line

(2) ‧‧‧ lens to be tested

Figure 1: Schematic diagram of system installation of traditional integrated vibration detection device

Figure 2: Side view of the vibration unit and fixture unit of a preferred embodiment of the vibration detection system of the present invention

Figure 3: Schematic diagram of a preferred embodiment of the vibration detection system of the present invention

Figure 4: Schematic diagram of the characteristic diagram of a preferred embodiment of the vibration detection system of the present invention

In order to facilitate your examination committee to understand the technical features, content, advantages and achievable effects of the present invention, the present invention is described in detail in conjunction with the drawings and in the form of expressions of the embodiments, and the drawings used therein, Its purpose is only for illustration and supplementary description, and may not be the true scale and precise configuration after the implementation of the present invention, so it should not be interpreted and limited to the relationship between the scale and the configuration of the attached drawings, and the scope of the present invention in the actual implementation is limited , He Xianming.

The advantages, technical features, and objectives of the present invention will be described in more detail with reference to the exemplary embodiments and the accompanying drawings to make it easier to understand, and the present invention may be implemented in different forms, so it should not be understood that Limited to the embodiments presented this time, on the contrary, with ordinary knowledge in the technical field, the embodiments provided will make the disclosure more thorough and comprehensive and complete to convey the scope of the present invention, and the present invention will only The scope of the attached patent application is defined.

First, please refer to FIGS. 2 to 3, which is a side view of the vibration unit and jig unit of a preferred embodiment of the vibration detection system of the present invention, and a schematic diagram of the system installation, in which the vibration detection system of the present invention ( 1) It is to detect the looseness of at least one lens (2) to be tested, at least including: a vibration unit (11), which includes a power source (111), a platform (112) connected to the power source (111), and A cover (113) provided on the platform (112), wherein the power source (111) drives the platform (112) in a frequency conversion and multi-axial manner to generate vibration, between the cover (113) and the platform (112) There is an accommodating space (114); this is because in the actual implementation situation, the natural resonance frequency of the lens under test (2) assembled abnormally will vary due to actual conditions, and part of the lens under test (2) is abnormally loose ) Is more sensitive to vibration tests in certain directions, so the present invention uses a frequency conversion and multi-axial vibration unit (11) to perform loose lens detection. Compared with the traditional detection method using a single vibration frequency, it can make The lens to be tested (2) with only slight looseness is easier to be detected, which can effectively improve the detection ability and reduce the production cost. The cover (113) provided on the vibrating platform (112) is for vibration Prevent unnecessary light source interference from outside during inspection; a fixture unit (12) is installed on the platform (112) and accommodated in the accommodating space (114). The fixture unit (12) includes a light source (121) ), At least one fixed module (122), at least one target area (123) corresponding to the fixed module (122), a sensing module (124), and a relay lens (125), wherein the light source (121) ) Is erected at the inner end of the mask (113) to provide a light to the lens to be tested (2), the fixed module (122) is correspondingly carrying the lens to be tested (2), and each target area (123) is A feature pattern (1231) is correspondingly provided, and the target area (123) is provided on one side of the lens (2) to be tested to reflect the light passing through the lens (2) to be tested, and the sensing module (124) is Corresponding to the target area (123), it is arranged on the other side of the lens (2) to be tested, to receive the variable feature graphic image formed by the light reflected by the target area (123), and the relay lens (125) is set at Between the lens under test (2) and the sensing module (124) to increase the focal length of the lens under test (2); in addition, the characteristic pattern (1231) includes a cross mark pattern, a grid pattern, a dot pattern or One type of graphics such as sharpness graphics or a combination of two or more; furthermore, the sensing module (124) is a device such as a photoelectric coupling element (CCD) or a complementary metal oxide semiconductor (CMOS); in addition, Please also refer to FIG. 4 again, which is a schematic diagram of a characteristic pattern of a preferred embodiment of the vibration detection system of the present invention, wherein the characteristic pattern (1231) is a pattern in which a cross mark pattern and a grid pattern are mixed to provide different Detection method Detect the looseness of the lens to be tested (2); in a preferred embodiment of the invention, the lens to be tested (2) to be loosened is correspondingly mounted on the fixed module (122), and the fixed module ( 122) is arranged on the vibrating platform (112), and the target area (123) and the sensing module (124) presented in the form of a photoelectric coupling element (CCD) are also arranged on the vibrating platform (112), The relay lens (125) is installed between the lens to be tested (2) and the sensing module (124), wherein the relay lens (125) can be It is called a teleconverter or relay lens, which is mainly used to increase the focal length of the lens under test (2) to avoid the disadvantages of collision and damage to other components due to adjustment of the imaging focal length of the lens under test (2) in practical operation; When the continuous light emitted by the light source (121) passes through the lens under test (2) mounted on the fixed module (122) and hits the target area (123), the target area (123) will re-continuous light It is reflected on the sensing module (124) through the lens to be tested (2) and the relay lens (125), and then the sensing module (124) converts the reflected light into a variable feature graphic image and outputs it to the detection unit (13) ); A detection unit (13), which is electrically connected to the sensing module (124), and the detection unit (13) receives the variation feature graphic image received by the sensing module (124), and compares with an algorithm The difference between the variation feature graphic image and an original feature graphic image, and a difference value is obtained. When the difference value exceeds a predetermined threshold value, the detection unit (13) sends out a signal; in addition, the original feature graphic image is awaiting The image of the characteristic graphic (1231) obtained by measuring the lens (2) at rest; furthermore, the detection unit (13) compares the coordinate value, sharpness or gray scale between the variable characteristic graphic image and the original characteristic graphic image The difference value formed by one of the features or the combination of the two or more is compared with the threshold value; in a preferred embodiment of the present invention, the detection unit (13) of the sensing module (124) is electrically connected It receives the variation feature graphic image received by the sensing module (124), and the detection unit (13) uses an algorithm to compare the variation feature graphic image with the original feature graphic image by the coordinate value, sharpness, or gray scale. Perform operations such as subtraction or subtraction to obtain a difference value. If the difference value exceeds a system-predetermined threshold, the detection unit (13) sends a signal to the display unit (14), where the original feature graphic image That is, the image of the characteristic pattern (1231) obtained when the lens to be tested (2) is at rest, that is, the lens to be tested (2) is mounted on the fixed module (122), and detected by the vibration detection system (1) Method, but the image of the feature graphic (1231) obtained under the condition that the vibration unit (11) is not turned on, and the detection unit (13) compares the difference between the variant feature graphic image and the original feature graphic image, for example, compares the variant feature graphic image Cross-shaped graphic with the original feature graphic image Relative to the coordinate position, when the difference in coordinate position of the cross mark exceeds the threshold set by the system, the detection unit (13) sends a signal to the display unit (14); and a display unit (14) is electrically connected The detection unit (13), the display unit (14) displays the original feature graphic image, the variation feature graphic image, and the difference value, and the display unit (14) emits a warning signal after receiving the signal; in addition, the detection unit (13) It is electrically connected to the sensing module (124) and the display unit (14) via a signal transmission line (15); furthermore, the warning signal is one type or more of sound, light, image or vibration Combination presentation; in a preferred embodiment of the present invention, the display unit (14) presented in the form of a liquid crystal screen receives and displays the original feature graphic image, the variation feature graphic image and the difference received by the detection unit (13) Value, and the display unit (14) sends out a warning signal of the image form after receiving the signal from the detection unit (13) to remind the detection personnel that the lens (2) is loose.

Next, in order to enable your reviewer to further understand the purpose, features, and desired effects of the present invention, the following specific practical examples of the vibration detection system (1) of the present invention are used to further prove the vibration detection system of the present invention ( 1) The range of practical application, but it is not intended to limit the scope of the present invention in any form; when a user wants to perform a loose detection of a lens (2) to be tested to determine whether it causes a defect such as an offset of the optical axis, etc. The vibration detection system (1) of the present invention is used to effectively detect the change of the coordinate value, resolution or gray scale of images such as cross marks, resolution figures or arbitrary figures through innovative hardware design. Know whether the lens inside the lens is loose and cause the optical axis to shift and other shortcomings. It is true that the defective products of the lens can be eliminated immediately before being assembled into the camera to achieve the advantages of reducing production costs and subsequent maintenance costs. First, prepare a vibration Unit (11), wherein the vibration unit (11) includes a power source (111), a platform (112) connected to the power source (111), and a cover (113) provided on the platform (112), The power source (111) drives the platform (112) by frequency conversion and multi-axial mode to generate vibration, and an accommodating space (114) is formed between the shield (113) and the platform (112); then, a jig is prepared Unit (12), wherein the jig unit (12) is disposed on the platform (112) and accommodated in the accommodating space (114), the jig unit (12) includes a light source (121), at least one fixed mold Group (122), at least one target area (123) corresponding to the fixed module (122), a sensing module (124), and a relay lens (125), wherein the light source (121) is mounted on the mask (113) The inner end is used to provide a light to the lens to be tested (2), the fixed module (122) is correspondingly carrying the lens to be tested (2), and each target area (123) is correspondingly provided with a characteristic pattern ( 1231), and the target area (123) is disposed on one side of the lens (2) to be tested to reflect light passing through the lens (2) to be tested, and the sensing module (124) corresponds to the target area (123) ) Is installed on the other side of the lens to be tested (2) to receive the variogram image formed by the light reflected by the target area (123), and the relay lens (125) is set to the lens to be tested (2) And the sensing module (124) to increase the focal length of the lens (2) to be tested; then, prepare a detection unit (13), wherein the detection unit (13) is electrically connected to the sensing module (124), The detection unit (13) receives the variation feature graphic image received by the sensing module (124), and compares the difference between the variation feature graphic image and an original feature graphic image with an algorithm, and obtains a difference value when When the difference value exceeds a predetermined threshold, the detection unit (13) sends a signal to a display unit (14); finally, the display unit (14) is prepared, wherein the display unit (14) is electrically connected to the detection unit (13) ), Show The display unit (14) displays the original feature graphic image, the variation feature graphic image, and the difference value, and the display unit (14) emits a warning signal after receiving the signal; the vibration detection system (1) of the present invention is provided in hardware After completion, the user sets the mask (113) provided with the light source (121) on the platform (112), and then can perform the loose detection of the lens (2) to be tested, that is, the continuous emission of the light source (121) After the light passes through the lens to be tested (2) mounted on the fixed module (122) and hits the target area (123), the target area (123) will pass the continuous light through the lens to be tested (2) and the center After the lens (125) is reflected on the sensing module (124) in the form of a photoelectric coupling element (CCD), the sensing module (124) converts the reflected light into a variable feature graphic image and outputs it to the detection unit (13) ), Where the feature graphic (1231) is a graphic image of a cross pattern and a checkered pattern, and after the detection unit (13) receives the variant feature graphic image, the detection unit (13) uses an algorithm to convert the variant feature graphic image and The original feature graphic image is compared or subtracted by coordinate value, sharpness or gray scale features to obtain a difference value. If the difference value exceeds a system-predetermined threshold value, the detection unit ( 13) A signal is sent to the display unit (14), where the original feature graphic image is the image of the feature graphic (1231) obtained when the lens under test (2) is at rest, and the lens under test (2) is to be erected on On the fixed module (122), the image of the characteristic pattern (1231) obtained under the condition of the above-mentioned vibration detection system (1) without turning on the vibration unit (11), and the detection unit (13) compares the variation The difference between the feature graphic image and the original feature graphic image is, for example, to compare the relative coordinate position of the cross mark between the variant feature graphic image and the original feature graphic image. When the difference of the coordinate position of the cross mark image exceeds the critical value set by the system, Then, the detection unit (13) sends a signal to the display unit (14), and the display unit (14) presented in the form of a liquid crystal screen receives and displays the original feature graphic image and the variant feature graphic image received by the detection unit (13) , And the difference value, and the display unit (14) sends out a warning signal in the form of an image after receiving the signal from the detection unit (13) to remind the testing personnel that the lens (2) is loose.

It can be seen from the above implementation description that the vibration detection system of the present invention has the following advantages compared with the prior art:

1. The vibration detection system of the present invention uses an innovative hardware design to effectively detect changes in the coordinate value, sharpness or gray scale of the image of the characteristic pattern to know whether the lens in the lens causes the optical axis due to looseness Problems such as offset, indeed remove the defective products of the lens immediately before assembling the camera, to achieve advantages such as reducing assembly and manufacturing costs and subsequent maintenance costs.

2. The vibration detection system of the present invention mainly uses the frequency conversion type multi-axial vibration machine to detect the looseness of the lens in the lens, so that the lens with only a slight looseness abnormality is detected due to the natural resonance frequency of the frequency conversion type vibration, or Some abnormal lenses are sensitive to vibration frequencies in certain directions and are detected because of multi-axial vibration. Compared with the traditional detection method using a single vibration frequency, it can indeed achieve the advantages of improving the detection ability of the lens lens.

3. The vibration detection system of the present invention is mainly to set the relay lens between the lens to be tested and the sensing module, which can not only effectively increase the imaging focal length of the lens to be tested, but also effectively avoid adjustments due to user's desire in practical operation The shortcomings of collision and damage between components of the imaging focal length of the lens to be tested do indeed achieve the advantages of reducing production costs and subsequent maintenance costs.

In summary, the vibration detection system of the present invention can indeed achieve the expected use effect by the above disclosed embodiments, and the present invention has not been disclosed before the application, and has fully met the requirements and requirements of the Patent Law . I filed an application for a patent for invention in accordance with the law, pleaded for the review, and granted the patent.

However, the illustrations and descriptions disclosed above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention; those who are familiar with the art, according to the characteristic scope of the present invention, do other things Equivalent changes or modifications should be regarded as not departing from the design scope of the present invention.

Claims (7)

    A vibration detection system performs loose detection of at least one lens to be tested. The vibration detection system includes at least: a vibration unit including a power source, a platform connected to the power source, and a cover provided on the platform The upper cover, wherein the power source drives the platform in a frequency conversion and multi-axial manner to generate vibration, and an accommodating space is formed between the cover and the platform; a jig unit is provided on the platform and Accommodated in the accommodating space, the fixture unit includes a light source, at least one fixed module, at least one pair of target areas corresponding to the fixed module, a sensing module, and a relay lens, wherein the The light source is erected at the inner end of the mask to provide a light to the lens to be tested, the fixed module corresponds to bear the lens to be tested, and each target area is correspondingly provided with a characteristic pattern, and the target The zone is arranged on one side of the lens under test to reflect the light passing through the lens under test, and the sensing module is arranged on the other side of the lens under test corresponding to the target area to receive Variation characteristic graphic image formed by light reflected from the target area, the relay lens is disposed between the lens to be tested and the sensing module to increase the focal length of the lens to be tested; a detection unit is electrically Connected to the sensing module, the detecting unit receives the variation feature graphic image received by the sensing module, and compares the difference between the variation feature graphic image and an original feature graphic image by an algorithm, and obtains a Difference value, when the difference value exceeds a predetermined threshold, the detection unit sends out a signal; and a display unit is electrically connected to the detection unit, the display unit displays the original feature graphic image, the variation feature The graphic image and the difference value, and the display unit sends a warning signal after receiving the signal.         The vibration detection system as described in item 1 of the patent application scope, wherein the characteristic pattern includes one or a combination of two or more of a cross mark pattern, a square pattern, a dot pattern or a sharpness pattern.         The vibration detection system as described in item 1 of the patent application scope, wherein the sensing module is one of a photoelectric coupling element (CCD) or a complementary metal oxide semiconductor (CMOS).         The vibration detection system as described in item 1 of the patent application scope, wherein the original feature graphic image is an image of the feature graphic obtained when the lens to be tested is at rest.         The vibration detection system as described in item 1 or 4 of the patent application scope, wherein the detection unit compares one of the coordinate value, sharpness or grayscale feature between the variable feature graphic image and the original feature graphic image or The difference value formed by the combination of the two or more is compared with the critical value.         The vibration detection system as described in item 1 of the patent application scope, wherein the detection unit is electrically connected to the sensing module and the display unit via a signal transmission line.         The vibration detection system as described in item 1 of the patent application scope, wherein the warning signal is presented in one of sound, light, image or vibration or a combination of two or more.