Optical detection device and optical detection apparatus

Abstract

The application relates to an optical detection device and an optical detection equipment, the optical detection equipment comprising the optical detection device, the optical detection device comprising a base and a plurality of detection assemblies, the base being connected with a mounting plate, the mounting plate being provided with a detection station below, the plurality of detection assemblies being arranged on the mounting plate at intervals around a central axis, each detection assembly being provided with a detection lens, all the detection lenses being arranged downwardly in a direction close to the central axis, so that the products can be detected from various angles by using the plurality of detection assemblies, and thus the detection precision of the products can be ensured under the premise of low cost; and each detection lens can move relative to the mounting plate to adjust the position of the detection lens, so that the central axes of all the detection lenses can converge on a convergence point located at the detection station, and thus the coordinates of the plurality of detection assemblies can be unified, and thus the detection precision and reliability can be further ensured.

Description

Technical Field

[0001] This application relates to the field of optical inspection technology, and in particular to an optical inspection device and optical inspection equipment. Background Technology

[0002] With the development of technology, the technical requirements for electronic products are getting higher and higher, especially the clarity of display modules, which poses a greater challenge. However, in order to ensure that the finished display modules are free of defects and that the clarity reaches the expected level, optical inspection is required to check whether the display modules have surface defects before the electronic products leave the factory.

[0003] As product testing requirements increase, the precision and complexity of corresponding optical inspection devices also increase. However, most optical inspection devices on the market currently use a single-camera fixed inspection method. To ensure inspection accuracy, this inspection method requires the installation of a high-end camera. Although high-end cameras have high inspection accuracy, they are also expensive and have a high false detection rate for specific defects. Utility Model Content

[0004] Therefore, it is necessary to address the problems of high inspection costs and high false detection rates for special defects caused by the single-camera fixed inspection method of existing optical inspection devices. This application provides an optical inspection device and an optical inspection equipment including the optical inspection device that can solve the above problems.

[0005] According to one aspect of this application, an optical detection device is provided, comprising:

[0006] A base, on which a mounting plate is connected, and a testing station is located below the mounting plate;

[0007] Multiple detection components are spaced apart on the mounting plate around a central axis extending in a vertical direction. Each detection component has a detection lens. All detection lenses are tilted downward toward the central axis. Each detection lens is movable relative to the mounting plate to adjust its position so that the central axes of all detection lenses converge at a convergence point located at the detection station.

[0008] In one embodiment, the position of the detection lens in the horizontal direction perpendicular to the vertical direction is adjustable; and / or, the detection lens is capable of deflecting relative to the central axis to change its mounting angle relative to the central axis.

[0009] In one embodiment, the horizontal direction includes a first horizontal direction and a second horizontal direction that are perpendicular to each other; the detection component further includes a first adjustment block mounted on the mounting plate, the detection lens being connected to the first adjustment block, and the first adjustment block being adjustable in the first horizontal direction relative to the mounting plate.

[0010] In one embodiment, the detection lens is connected to the first adjustment block via a second adjustment block, the second adjustment block being adjustable in the second horizontal direction relative to the mounting position of the first adjustment block.

[0011] In one embodiment, the second adjusting block has a first mounting surface and a second mounting surface that are set at an angle to each other, the first mounting surface being connected to the first adjusting block, and the detection lens being connected to the second mounting surface such that the detection lens is tilted relative to the first adjusting block.

[0012] In one embodiment, the first adjusting block is connected to the second adjusting block via a first connector and a plurality of second connectors, all of the second connectors being spaced apart from the first connector along a circumferential direction;

[0013] The first connecting member can rotate around its own central axis and move along its own axial direction under the action of external force to apply a closing force to the second adjusting block to fix the second adjusting block and the first adjusting block to each other; or it can rotate in the opposite direction around its own central axis and move in the opposite direction along its own axial direction under the action of external force to release the closing force and allow the second adjusting block to move relative to the first adjusting block.

[0014] The second connector is used to apply an opening force to the second adjusting block when the second adjusting block is movable relative to the first adjusting block, which can pry the second adjusting block to deflect relative to the first adjusting block.

[0015] In one embodiment, each of the detection components is detachably provided with a cone-shaped contour block, which is used to replace the detection lens to simulate whether the central axes of all the detection lenses converge at the convergence point;

[0016] When the cone tips of all the contour blocks converge at the convergence point, the central axes of all the detection lenses also converge at the convergence point.

[0017] In one embodiment, the base is mounted on a linear module, a bracket is movably mounted on the linear module, and at least one filter is mounted on the bracket. The linear module can drive the bracket and the filter to move together, so that the filter is located at or away from the detection station.

[0018] In one embodiment, the optical inspection device further includes a support platform for holding the product to be inspected, the support platform being provided with a heating element for heating the product to be inspected at different temperatures.

[0019] The aforementioned optical inspection device, on the one hand, integrates multiple inspection components spaced around a central axis on a mounting plate connected to the base. Each inspection component's inspection lens is tilted downwards towards the central axis, resulting in a compact and efficient structure that facilitates inspection of products from various angles. This ensures high inspection accuracy while maintaining low cost. On the other hand, by allowing the inspection lens of each component to move relative to the mounting plate, the installation position of each lens can be easily adjusted. This allows the central axes of all inspection lenses to converge at a single point on the inspection station, achieving coordinate unification of the multiple inspection components and further ensuring inspection accuracy and reliability.

[0020] According to another aspect of this application, an optical inspection device is provided, comprising:

[0021] A support platform is used to support the product to be tested. A pressing cover plate is movably provided on the support platform. The pressing cover plate can move relative to the support platform to press the product to be tested and make the product to be tested electrically conductive.

[0022] A temperature control module is disposed below the support platform. The temperature control module includes a heating element, which is used to heat the product being tested at different temperatures.

[0023] The optical inspection device described in any of the above embodiments is disposed above the support platform, and the optical inspection device is used to inspect the product being inspected.

[0024] In one embodiment, the carrier platform has multiple product cavities, each product cavity being used to place one of the products to be tested. The optical inspection equipment further includes a transfer module, and the optical inspection device is disposed on the transfer module. The transfer module is used to drive the optical inspection device to move so as to inspect the products to be tested placed in each of the product cavities respectively.

[0025] The aforementioned optical inspection equipment, by setting a temperature control module on the carrier platform, includes a heating element that heats the product under inspection at different temperatures. This allows the product to be inspected by the optical inspection device at different temperatures, thereby simulating different temperature conditions. When the product under inspection is a display module of an electronic product, the display effect of the product under inspection can be tested under different temperature conditions, thus ensuring that the display effect of the product under inspection will not be distorted under various temperatures, guaranteeing the quality of the product leaving the factory. Attached Figure Description

[0026] Figure 1 This is an axonometric view of an optical detection device provided in an embodiment of this application.

[0027] Figure 2 This is an axonometric view of an optical detection device provided in a preferred embodiment of this application.

[0028] Figure 3 This is an axonometric view of multiple detection components converging at the same convergence point in an optical detection device provided in an embodiment of this application.

[0029] Figure 4 This is a front view of multiple detection components converging at the same convergence point in an optical detection device provided in an embodiment of this application.

[0030] Figure 5 An axonometric view of a detection component in an optical detection apparatus provided in an embodiment of this application.

[0031] Figure 6 An axonometric view of an optical inspection device provided in an embodiment of this application.

[0032] Figure 7 A partial structural diagram of an optical inspection device provided in an embodiment of this application. Figure 1 (The press cover is in the open position).

[0033] Figure 8 A partial structural diagram of an optical inspection device provided in an embodiment of this application. Figure 2 (The press cover is in the closed position).

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Optical inspection equipment; 10. Optical inspection device; 11. Inspection station; 12. Central axis; 100. Base; 200. Inspection component; 210. Main unit; 211. Second oblong hole; 220. Inspection lens; 230. First adjusting block; 231. First oblong hole; 240. Second adjusting block; 241. First mounting surface; 242. Second mounting surface; 250. First connector; 260. Second connector; 300. Mounting plate; 400. Contouring block; 500. Judgment component; 510. Judgment lens; 600. Linear module; 700. Bracket; 800. Filter; 900. Protective cover; 1000. Light source; 20. Support platform; 21. Product cavity; 30. Temperature control module; 40. Circuit board; 50. Pressing cover plate; 60. Transfer module. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] One embodiment of this application provides an optical inspection device for detecting whether a product has defects, so as to ensure that the tested product is a qualified product when it reaches the user after leaving the factory.

[0043] The structure of the optical inspection device in this application will be described below using a display module of an electronic product such as a mobile phone or computer as an example. This embodiment is only used as an example and does not limit the technical scope of this application. It can be understood that in other embodiments, the optical inspection device of this application is not limited to detecting display defects in display modules, but can also be used to detect defects in any product, and is not limited here.

[0044] See Figure 1 , Figure 1This diagram shows an axonometric view of an optical inspection device 10 provided in an embodiment of this application. The optical inspection device 10 provided in this embodiment includes a base 100 and an inspection component 200. A mounting plate 300 is connected to the base 100, and an inspection station 11 is located below the mounting plate 300. The inspection component 200 includes a main unit 210 and an inspection lens 220. The main unit 210 is connected to the mounting plate 300, and the inspection lens 220 is mounted on the main unit 210. The inspection component 200 uses the inspection lens 220 to align with the surface of a product located on a support platform to perform optical detection on the product, thereby detecting whether the product has defects.

[0045] like Figure 2 As shown, in a preferred embodiment, a protective cover 900 is mounted on the base 100, and a mounting plate 300 is disposed on the protective cover 900 for connection to the base 100 via the protective cover 900, as shown. Figure 3 As shown, the protective cover 900 encloses all the detection lenses 220 inside itself to protect the detection lenses 220.

[0046] More preferably, such as Figure 3 and Figure 4 As shown, there are multiple detection components 200, which are spaced apart on the mounting plate 300 about a central axis 12 extending in a vertical direction (Z direction shown in the figure). The detection lens 220 of each detection component 200 is tilted downward toward the central axis 12 so that all detection lenses 220 can be aligned with the surface of the product.

[0047] As can be seen, by integrating multiple detection components 200 into the optical inspection device 10 provided in this application, not only is the structure of the optical inspection device 10 compact and small, but it is also convenient to use multiple detection components 200 to detect the surface defects of the product from various angles, thereby enabling comprehensive inspection of the product. Therefore, high inspection accuracy of the product can be guaranteed without using a high-precision camera.

[0048] As mentioned above, the product inspected by the optical inspection device 10 provided in this application can be a display module of an electronic product such as a mobile phone. In this case, it is necessary for each inspection component 200 to inspect the imaging effect of the product at a certain pixel. However, it is worth noting that electronic products generate heat during operation, especially when running multiple programs. Therefore, the product under inspection needs to be heated during inspection to simulate different temperature conditions and to inspect the display effect of the product under different temperature conditions, so as to ensure that the display effect of the product under inspection is not distorted under various temperatures.

[0049] For this reason, it is necessary to detect whether the imaging effect of the pixel changes under different temperatures. To achieve this, the central axes 12 of all detection lenses 220 need to be converged at the same convergence point located at the detection station 11. This controls the variable of pixel coordinates, ensuring that the pixel coordinates detected by different detection components 200 are unified under each temperature condition, thus allowing the imaging effect of the pixel to be detected at different temperatures. Therefore, in the embodiments of this application, each detection lens 220 can move relative to the mounting plate 300 to adjust its position, thereby enabling the central axes 12 of all detection lenses 220 to converge at the same convergence point.

[0050] As can be seen, by converging the central axes 12 of all the detection lenses 220 to the same convergence point, the detection deviation of a single detection component 200 can be eliminated. This avoids the detection results of each detection component 200 from being inconsistent due to their own independent coordinate system deviations, thus affecting the detection accuracy. Therefore, the accuracy and reliability of the detection are further ensured, and the overall detection stability of the device is improved.

[0051] As an optional embodiment, the position of the detection lens 220 of the detection assembly 200 in the horizontal direction perpendicular to the vertical direction is adjustable, and / or the detection lens 220 can be deflected relative to the central axis 12 to change its mounting angle relative to the central axis 12.

[0052] Specifically, in combination Figure 4 and Figure 5 As shown, the detection assembly 200 also includes a first adjusting block 230 and a second adjusting block 240. The first adjusting block 230 is mounted on the mounting plate 300, and the second adjusting block 240 is connected to the first adjusting block 230. The detection lens 220 is connected to the second adjusting block 240 via the main unit 210, and thus connected to the first adjusting block 230 via the second adjusting block 240. The mounting position of the first adjusting block 230 relative to the mounting plate 300 is adjustable. More specifically, relative to a single detection assembly 200, the horizontal direction includes mutually perpendicular first horizontal directions (…). Figure 5 The X direction shown) and the second horizontal direction ( Figure 5 (As shown in the Y direction), the first horizontal direction is the radial direction defined by the central axis 12. The position of the first adjusting block 230 relative to the mounting plate 300 in the first horizontal direction is adjustable, and the mounting position of the second adjusting block 240 relative to the first adjusting block 230 in the second horizontal direction is adjustable.

[0053] Optionally, in some embodiments, the position adjustment of the first adjusting block 230 relative to the mounting plate 300 and the position adjustment of the second adjusting block 240 relative to the first adjusting block 230 are performed manually. For example, as... Figure 5As shown, the first adjusting block 230 is connected to the mounting plate 300 by multiple first fasteners (not shown in the figure), such as screws, and the first adjusting block 230 has multiple first oblong holes 231. The long side of the first oblong hole 231 is parallel to the first horizontal direction. The first fasteners pass through the first oblong holes 231, so that after the first fasteners are loosened, the position of the first adjusting block 230 in the first horizontal direction can be manually adjusted, thereby making the position of the detection lens 220 in the first horizontal direction also adjustable; similarly, as Figure 3 As shown, the main unit 210 is connected to the second adjusting block 240 by a plurality of second fasteners (not shown in the figure), such as screws. The main unit 210 has a second oblong hole 211, the long side of which is parallel to the second horizontal direction. The second fastener passes through the second oblong hole 211, so that after the second fastener is loosened, the position of the second adjusting block 240 in the second horizontal direction can be manually adjusted, thereby making the position of the detection lens 220 in the second horizontal direction also adjustable.

[0054] Regarding the structure of the second adjusting block 240, from Figure 5 As shown in the second horizontal view, the cross-section of the second adjusting block 240 is triangular, meaning the second adjusting block 240 has a first mounting surface 241 and a second mounting surface 242 that are set at an angle to each other. The first mounting surface 241 is connected to the first adjusting block 230, and the main unit 210 is connected to the second mounting surface 242, so that the detection lens 220 is connected to the second mounting surface 242 through the main unit 210; combined with Figure 4 As shown, since the first adjustment block 230 is installed on the horizontally set mounting plate 300, the first adjustment block 230 is set horizontally, which makes the first mounting surface 241 also set horizontally, thereby making the second mounting surface 242 set at an angle, and thus making the detection lens 220 tilt downward toward the central axis 12.

[0055] It is understood that in other embodiments, the second adjustment block 240 may not be provided, and the host 210 may be directly connected to the first adjustment block 230. The detection lens 220 may be tilted relative to the host 210, and the position of the host 210 relative to the first adjustment block 230 in the second horizontal direction may be adjustable. Alternatively, the relative position of the host 210 and the first adjustment block 230 may always be fixed, and only the position of the first adjustment block 230 relative to the mounting plate 300 may be adjustable. None of the above is limited.

[0056] Regarding how the detection lens 220 changes its mounting angle relative to the central axis 12, it can optionally be adjusted manually. Specifically, in one embodiment, as shown... Figure 5As shown, the first adjusting block 230 is connected to the second adjusting block 240 via a first connecting member 250 and multiple second connecting members 260. It can be seen from the figure that there are three second connecting members 260, although the number is not limited to this and can be any number. All the second connecting members 260 are spaced apart around the first connecting member 250 along a circumferential direction. In this embodiment, the first connecting member 250 is a screw, and the second connecting member 260 is a set screw, the end of which has a certain elasticity. The first connecting member 250 passes through the first adjusting block 230 and the second adjusting block 240, and the second connecting member 260 passes through the first adjusting block 230, with the end of the second connecting member 260 abutting against the second adjusting block 240.

[0057] When the first connector 250 is turned, it can rotate around its central axis 12 and move along its own axial direction under the action of external force, so as to apply a closing force to the second adjusting block 240 to fix the second adjusting block 240 and the first adjusting block 230 to each other. This closing force can cause the first adjusting block 230 and the second adjusting block 240 to rub against each other to achieve fixation. Conversely, when the first connector 250 is turned in the opposite direction, it can rotate in the opposite direction and move in the opposite direction along its own axial direction under the action of external force, so as to release the closing force and allow the second adjusting block 240 to move relative to the first adjusting block 230.

[0058] When the second adjusting block 240 is movable relative to the first adjusting block 230, the second connecting member 260 can move along its own axis to abut against the second adjusting block 240 and apply an opening force to the second adjusting block 240. When one of the second connecting members 260 moves and applies an opening force to the second adjusting block 240, the opening force can pry the second adjusting block 240 to deflect relative to the first adjusting block 230, thereby changing the installation angle of the detection lens 220 relative to the central axis 12.

[0059] It should be noted that in some cases, without reversing the first connector 250 to release the closing force, the second connector 260 can be moved along its own axis and the second adjusting block 240 can be slightly deflected relative to the first adjusting block 230 to adjust the installation angle of the detection lens 220 relative to the central axis 12 more slightly.

[0060] Furthermore, it should be noted that the adjustment method for the installation position of the detection component 200 is not limited to manual adjustment; it can also be adjusted electrically. This application does not limit the method.

[0061] Furthermore, in order to determine whether the central axes 12 of all detection lenses 220 converge at the same convergence point, preferably, as follows: Figure 3As shown, each detection component 200 is detachably equipped with a cone-shaped contour block 400, which can be detachably mounted on the host 210 to replace the detection lens 220. Before detection, the position of the detection component 200 can be adjusted to simulate whether the central axes 12 of all detection lenses 220 converge at the convergence point; as shown in the figure, when the cone tips of all contour blocks 400 converge at the convergence point, it indicates that the central axes 12 of all detection lenses 220 can also converge at the convergence point.

[0062] Furthermore, in order to more accurately determine whether the central axes 12 of all the detection lenses 220 converge at the same convergence point, such as... Figure 1 and Figure 2 As shown, a judgment component 500 for detecting a camera is provided on the base 100, and the judgment component 500 is located above the mounting plate 300. Figure 2 In the embodiment, the mounting plate 300 has a through hole at its center that extends through both opposite sides of itself, and the judging component 500 has a judging lens 510, which is positioned vertically. towards The following settings are configured and located in the through hole, so that when the detection component 200 is equipped with the contour block 400, the judgment component 500 can take a picture through the judgment lens 510 to determine whether the cone tips of all the contour blocks 400 converge at the convergence point. When it is confirmed that the cone tips of all the contour blocks 400 converge at the convergence point, the contour block 400 is removed from the host 210 and the detection lens 220 is installed on the host 210.

[0063] Preferably, the determining component 500 is movably mounted on the base 100 and can be moved up and down in the vertical direction by manual or electric adjustment to enable focusing.

[0064] Please continue reading. Figure 1 and Figure 2 ,exist Figure 1 and Figure 2 In one embodiment, the base 100 is mounted on a linear module 600. A bracket 700 is movably mounted on the linear module 600, and multiple filters 800 are mounted on the bracket 700. The linear module 600 can drive the bracket 700 and the filters 800 to move together, so that the filters 800 are positioned at or away from the detection station 11. When the filters 800 are at the detection station 11, they are located between the detection lens 220 and the support platform, and the detection component 200 detects the product being tested through the filters 800. When the filters 800 are away from the detection station 11, the detection component 200 can directly detect the product being tested without passing through the filters 800.

[0065] The purpose of setting the filter 800 is that when the product being inspected is a display module, the filter 800 can filter the light so that the inspection lens 220 can only detect the display level of the display module in a certain color, in order to determine whether the display module is full in display level of that color, thereby determining whether the product being inspected has display defects in display of a certain color.

[0066] exist Figure 1 and Figure 2 In the embodiment, there are three filters 800, each capable of filtering a different color. This allows the detection component 200 to sequentially determine whether the product being tested has display defects in the three colors when the detection lens 220 is aligned with each of the three filters 800. It is understood that the number of filters 800 is not limited; one or more filters can be used, and there is no limitation here. Alternatively, filters 800 can be omitted, and the detection lens 220 can directly detect the product without passing through the filters 800.

[0067] As an alternative embodiment, the optical inspection device 10 also includes a light source 1000, which is used to emit light that can illuminate the inspection station 11.

[0068] Additionally, see Figure 6 This application also provides an optical inspection device 1, which includes a support platform 20, a temperature control module 30, and the optical inspection apparatus 10 described in the previous embodiment. The optical inspection apparatus 10 is disposed above the support platform 20 and on a transfer module 60. The position of the support platform 20 constitutes an inspection station 11, and the temperature control module 30 is disposed below the support platform 20. The support platform 20 is used to support the product to be inspected; the temperature control module 30 includes a heating element (not shown in the figure), which is used to heat the product to be inspected and can heat the product to different temperatures to simulate different temperature conditions. This allows the optical inspection apparatus to inspect the product at different temperatures, with the aim of detecting the display effect of the product under different temperature conditions.

[0069] See Figure 7 and Figure 8 As an optional embodiment, the support platform 20 is provided with a circuit board 40 for connecting the product to be tested, and a pressing cover 50 is movably provided on the support platform 20, the pressing cover 50 being movably connected to the support platform 20. Figure 7 and Figure 8In the embodiment shown, the pressing cover 50 is rotatably connected to the support platform 20 and can rotate relative to the support platform 20 to press against the product to be tested placed on the support platform 20, so that the product to be tested is connected to the circuit board 40 to achieve electrical conduction.

[0070] Preferably, the support platform 20 is made of heat-resistant materials such as ceramic, and the heating element can be a heating coil. When the heating coil is energized, it can generate heat to heat the support platform 20. Preferably, the support platform 20 has a product cavity 21, in which the product can be fixed and heated by the heating element. More preferably, the support platform 20 can be made of metal, or a metal tray can be provided on the support platform 20. The product to be tested is placed on the tray, so that the high thermal conductivity of the metal can be used to quickly conduct heat to the product to be tested, thereby achieving rapid heating of the product.

[0071] Furthermore, the temperature control module 30 may also include a heat dissipation element (not shown in the figure). The heat dissipation element may be a heat dissipation fin or a fan, or an auxiliary cooling mechanism, etc., with the purpose of quickly dissipating heat from the product being tested after it is heated.

[0072] Optionally, in Figure 7 and Figure 8 In one embodiment, the support stage 20 has multiple product cavities 21, each of which is used to place a product to be tested. Correspondingly, there are also multiple temperature control modules 30, each of which is located below a product cavity 21, so that different products to be tested can be heated to different temperatures respectively, thus eliminating the need to heat a product to be tested to different temperatures sequentially, thereby improving testing efficiency.

[0073] It is understandable that the temperature control module 30 can also be an integrated module located below the support platform 20, which can heat all the products being tested to different temperatures in sequence, and this is not a limitation.

[0074] When multiple products to be tested are placed in multiple product cavities 21, please refer to the following section to ensure that all products can be tested sequentially. Figure 6 The optical inspection equipment 1 also includes a transfer module 60, on which the optical inspection device 10 is mounted. The transfer module 60 is used to drive the optical inspection device 10 to move so as to inspect the products placed in each product cavity 21 respectively.

[0075] The structure of the transfer module 60 can be a three-axis module or a robotic arm, etc. Specific structures can be found in existing technologies and will not be described further here. As for the structure of the optical detection device, its structure has already been described in detail in the embodiments described above, and will not be repeated here.

[0076] Therefore, the optical inspection device 10 provided in this application, by integrating multiple inspection components 200, enables the inspection of a pixel point of a product from multiple angles. Simultaneously, it allows for convenient and high-precision adjustment of the installation position of the inspection components 200, ensuring that the central axes 12 of all inspection components 200 converge at a single point for inspection. This not only results in higher inspection accuracy but also eliminates the need for a high-precision inspection camera, significantly reducing costs. Furthermore, the optical inspection device 1 provided in this application can inspect the display effect of the inspected product under different temperature conditions, ensuring that the display effect of the inspected product remains distorted at all temperatures, thus guaranteeing the product's factory quality. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as these combinations of technical features do not contradict each other, they should be considered within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An optical detection device, characterized in that, include: A base (100) is provided, on which a mounting plate (300) is connected, and a testing station (11) is located below the mounting plate (300). Multiple detection components (200) are spaced apart on the mounting plate (300) about a central axis (12) extending in a vertical direction. Each detection component (200) has a detection lens (220). All detection lenses (220) are tilted downward toward the central axis (12). Each detection lens (220) is movable relative to the mounting plate (300) to adjust its position so that the central axes (12) of all detection lenses (220) can converge at a convergence point located at the detection station (11).

2. The optical detection device according to claim 1, characterized in that, The position of the detection lens (220) in the horizontal direction perpendicular to the vertical direction is adjustable; and / or, the detection lens (220) is able to deflect relative to the central axis (12) to change its mounting angle relative to the central axis (12).

3. The optical detection device according to claim 2, characterized in that, The horizontal direction includes a first horizontal direction and a second horizontal direction that are perpendicular to each other; the detection component (200) also includes a first adjustment block (230) mounted on the mounting plate (300), the detection lens (220) is connected to the first adjustment block (230), and the first adjustment block (230) is adjustable in the first horizontal direction relative to the mounting plate (300).

4. The optical detection device according to claim 3, characterized in that, The detection lens (220) is connected to the first adjustment block (230) via a second adjustment block (240), and the second adjustment block (240) is adjustable in the second horizontal direction relative to the installation position of the first adjustment block (230).

5. The optical detection device according to claim 4, characterized in that, The second adjustment block (240) has a first mounting surface (241) and a second mounting surface (242) that are set at an angle to each other. The first mounting surface (241) is connected to the first adjustment block (230), and the detection lens (220) is connected to the second mounting surface (242) so that the detection lens (220) is tilted relative to the first adjustment block (230).

6. The optical detection device according to claim 4, characterized in that, The first adjusting block (230) is connected to the second adjusting block (240) via a first connector (250) and a plurality of second connectors (260), and all the second connectors (260) are spaced around the first connector (250) along a circumferential direction; The first connector (250) can rotate around its own central axis (12) and move along its own axial direction under the action of external force, so as to apply a closing force to the second adjusting block (240) to fix the second adjusting block (240) and the first adjusting block (230) to each other; or it can rotate in the opposite direction around its own central axis (12) and move in the opposite direction along its own axial direction under the action of external force, so as to release the closing force and allow the second adjusting block (240) to move relative to the first adjusting block (230); The second connector (260) is used to apply an opening force to the second adjusting block (240) when the second adjusting block (240) is movable relative to the first adjusting block (230), which can pry the second adjusting block (240) to deflect relative to the first adjusting block (230).

7. The optical detection device according to claim 1, characterized in that, Each of the detection components (200) is detachably provided with a cone-shaped contour block (400), which is used to replace the detection lens (220) to simulate whether the central axes (12) of all the detection lenses (220) converge at the convergence point; When the tips of all the contour blocks (400) converge at the convergence point, the central axes (12) of all the detection lenses (220) also converge at the convergence point.

8. The optical detection device according to claim 1, characterized in that, The base (100) is mounted on a linear module (600), on which a bracket (700) is movably mounted. At least one filter (800) is mounted on the bracket (700). The linear module (600) can drive the bracket (700) and the filter (800) to move together, so that the filter (800) is located at or away from the detection station (11).

9. An optical inspection device, characterized in that, include: A support platform (20) is used to support the product to be tested. A pressing cover plate (50) is movably provided on the support platform (20). The pressing cover plate (50) can move relative to the support platform (20) to press the product to be tested and make the product to be tested electrically conductive. A temperature control module (30) is disposed below the support platform (20). The temperature control module (30) includes a heating element, which is used to heat the product being tested at different temperatures. The optical inspection device (10) as described in any one of claims 1-8 is disposed above the support platform (20) and is used to inspect the product being inspected.

10. The optical inspection device according to claim 9, characterized in that, The support platform (20) has multiple product cavities (21), each of which is used to place one of the products to be tested. The optical inspection device (1) also includes a transfer module (60), and the optical inspection device (10) is disposed on the transfer module (60). The transfer module (60) is used to drive the optical inspection device (10) to move so as to inspect the products to be tested placed in each of the product cavities (21).

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