Camera module quality inspection device and system

Abstract

The utility model relates to a camera module quality inspection device and system. The device comprises a cylinder, a PCB, a multi-gear switch and a plurality of LED lamp sets. Clamping grooves are formed in two ends of the cylinder; the PCB is matched with the section of the cylinder in shape; the clamping groove at the first end of the cylinder is used for clamping a PCB, and the clamping groove at the second end of the cylinder is used for clamping a camera module to be subjected to quality inspection; an LED lamp set is arranged on the side, facing the interior of the cylinder, of the PCB, and a multi-gear switch is arranged on the other side of the PCB. Gears of the multi-gear switch are in one-to-one correspondence with the LED lamp banks and are used for controlling on / off of the corresponding LED lamp banks; the wavelengths of the LED lamp sets are different, and the light source intensity is adjustable. During implementation, according to the wavelength required by the camera module to be subjected to quality inspection, the corresponding LED lamp set is controlled by the multi-gear switch to provide the light source with the corresponding wavelength, the LED lamp set and the camera module to be subjected to quality inspection are located in the cylindrical cavity together, and at the moment, whether the camera module to be subjected to quality inspection has defects or not is judged according to the imaging result of the mobile terminal carrying the camera module to be subjected to quality inspection.

Description

Technical Field

[0001] This application relates to the technical field of quality inspection of camera modules, and particularly to a quality inspection device and system for camera modules. Background Art

[0002] The shooting angle of existing mobile camera modules is around 76 degrees. In the prior art, when conducting quality inspection on mobile camera modules, a common white board is usually used to block the lens light aperture to check whether there are defects such as dirt and dirt spots in the camera imaging.

[0003] With the increase in customer requirements, the shooting angle requirements of mobile camera modules have expanded to 100° - 180°. When detecting dirt and dirt spots in such large-lens and large-angle camera modules, using a common white board cannot effectively block the view completely, and it is impossible to detect whether there are problems such as dirt, dirt spots, and color spots in the entire picture. The reason is that when producing, a common white board is used to block the field of view angle of the lens light aperture, and because the first piece of glass of this large lens is curved, and the angle and distortion are too large to effectively block completely, which is equivalent to only blocking 50% of the picture, and the other 50% cannot effectively detect whether there are defects. Utility Model Content

[0004] To at least overcome to some extent the problem that the quality inspection technology of camera modules in the related art cannot effectively conduct quality inspection on camera modules, this application provides a quality inspection device and system for camera modules.

[0005] The solution of this application is as follows:

[0006] According to the first aspect of the embodiments of this application, a quality inspection device for camera modules is provided, including:

[0007] A cylinder, a PCB board, a multi-position switch, and multiple groups of LED lamp groups;

[0008] Slots are provided at both ends of the cylinder;

[0009] The cross-sectional shape of the PCB board fits the cylinder;

[0010] The slot at the first end of the cylinder is used to engage the PCB board, and the slot at the second end is used to engage the camera module to be quality inspected;

[0011] The LED lamp groups are arranged on the side of the PCB board facing the inside of the cylinder, and the multi-position switch is arranged on the other side of the PCB board;

[0012] Each position of the multi-position switch corresponds to each LED lamp group one by one, and is used to control the on / off of the corresponding LED lamp group;

[0013] The wavelengths of each LED light group are different, and the light source intensity is adjustable.

[0014] Preferably, each LED light group includes multiple LED lamp beads;

[0015] The LED lamp beads within each group are arranged in a ring around the center of the PCB board.

[0016] Preferably, there is a gap between the rings formed by each LED light group.

[0017] Preferably, the LED light groups are arranged in order from the inside out with the center of the PCB board as the reference, sorted by wavelength from weak to strong.

[0018] Preferably, a light-transmitting white board that fits the cross-sectional shape of the cylinder is also provided outside the LED light group.

[0019] Preferably, it further includes:

[0020] A potentiometer;

[0021] The potentiometer is arranged on the PCB board;

[0022] The potentiometer is respectively connected to the power supply and the multi-position switch, and is used to adjust the light source intensity of each LED light group.

[0023] Preferably, the PCB board is fixed on the card slot at the first end of the cylinder through a sealant.

[0024] According to the second aspect of the embodiments of the present application, a camera module quality inspection system is provided, including:

[0025] A PC terminal, and a camera module quality inspection device as described in any one of the above;

[0026] The PC terminal is connected to a mobile device carrying the camera module to be quality inspected through a USB cable, and displays the images collected by the camera module to be quality inspected.

[0027] The technical solution provided by the present application may include the following beneficial effects: The camera module quality inspection device in the present application includes: a cylinder, a PCB board, a multi-position switch, and multiple groups of LED light groups. Card slots are provided at both ends of the cylinder; the PCB board fits the cross-sectional shape of the cylinder; the card slot at the first end of the cylinder is used to engage the PCB board, and the card slot at the second end is used to engage the camera module to be quality inspected; LED light groups are arranged on the side of the PCB board facing the inside of the cylinder, and a multi-position switch is arranged on the other side of the PCB board; each position of the multi-position switch corresponds to each LED light group one by one, and is used to control the on / off of the corresponding LED light group; the wavelengths of each LED light group are different, and the light source intensity is adjustable.

[0028] In this technical solution, a cylinder is used as the "lamp shade". During implementation, the second end of the cylinder lamp shade is snapped onto the camera module to be inspected. According to the wavelength required by the camera module to be inspected, the corresponding LED lamp group is controlled by a multi-position switch to provide a light source of the corresponding wavelength. At this time, the LED lamp group and the camera module to be inspected are both in the cylinder cavity. The imaging result of the mobile terminal carrying the camera module to be inspected is used to determine whether there are defects in the camera module to be inspected. If there are no stains or dirt spots in the imaging result, it means that the camera module to be inspected passes the quality inspection. If there are stains or dirt spots in the imaging result, it means that the camera module to be inspected has defects and the quality inspection fails.

[0029] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with this application and used together with the specification to explain the principles of this application.

[0031] Figure 1 is a schematic structural diagram of a camera module quality inspection device provided by an embodiment of this application;

[0032] Figure 2 is a schematic structural diagram of a camera module quality inspection device provided by an embodiment of this application;

[0033] Figure 3 is a schematic circuit structure diagram of a PCB board in a camera module quality inspection device provided by an embodiment of this application;

[0034] Figure 4 is a schematic layout diagram of an LED lamp group in a camera module quality inspection device provided by an embodiment of this application.

[0035] Reference numerals: cylinder - 1; PCB board - 2; multi-position switch - 3; LED lamp group - 4; light-transmitting white board - 5; potentiometer - 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. On the contrary, they are only examples of devices and methods consistent with some aspects of this application as detailed in the appended claims.

[0037] Refer to Figure 1 - Figure 2 , a camera module quality inspection device, comprising:

[0038] A cylinder 1, a PCB board 2, a multi-position switch 3, and multiple groups of LED lamp groups 4;

[0039] Card slots are provided at both ends of the cylinder 1;

[0040] The cross-sectional shape of the PCB board 2 fits that of the cylinder 1;

[0041] The card slot at the first end of the cylinder 1 is used to engage the PCB board 2, and the card slot at the second end is used to engage the camera module to be inspected;

[0042] The LED lamp groups 4 are arranged on the side of the PCB board 2 facing the inside of the cylinder 1, and the multi-position switch 3 is arranged on the other side of the PCB board 2;

[0043] Each position of the multi-position switch 3 corresponds to one of the LED lamp groups 4, and is used to control the on / off of the corresponding LED lamp group 4;

[0044] The wavelengths of the LED lamp groups 4 are different, and the light source intensity is adjustable.

[0045] It should be noted that the cylinder 1 in this embodiment is a hollow cylindrical structure, and the PCB board 2 is an existing PCB circuit board. The cross-sectional shape of the PCB board 2 in this embodiment needs to fit that of the cylinder 1 to be engaged at the first end of the cylinder 1.

[0046] It should be noted that referring to Figure 2 , the first end of the cylinder 1 has a card slot that can be used to engage the PCB board 2. In specific practice, the dimensions of the cylinder 1 are: height 6 cm, radius 3 cm. The radius of the PCB board 2 is 2.7 cm.

[0047] In this technical solution, the LED lamp groups 4 mainly play a role in emitting light, and the cylinder mainly plays a role in concentrating light.

[0048] Preferably, the PCB board 2 is fixed to the card slot at the first end of the cylinder 1 with a sealant. In specific practice, UV sealant can be selected to bond and seal the engagement part between the PCB board 2 and the first end of the cylinder 1.

[0049] In specific practice, the LED lamp groups 4 generally include lamp groups with three wavelengths of 650 nm / 850 nm / 940 nm. Correspondingly, the multi-position switch 3 is a 3-position switch. Figure 3 For the circuit structure schematic diagram of the PCB board 2, the connection relationship between the LED lamp groups 4 and the 3-position switch is as Figure 3 shown.

[0050] Referring to Figure 4 , each of the LED lamp groups 4 includes multiple LED lamp beads;

[0051] The LED lamp beads within each group are arranged in a ring around the center of the PCB board 2.

[0052] There is a gap between the rings formed by each LED lamp group 4.

[0053] The LED lamp groups 4 are arranged in sequence from the inside to the outside with the center of the PCB board 2 as the reference according to the sorting of wavelengths from weak to strong.

[0054] Figure 4 Among them, the innermost LED lamp group 4 is a lamp group with a wavelength of 650 nm, the middle LED lamp group 4 is a lamp group with a wavelength of 850 nm, and the outermost LED lamp group 4 is a lamp group with a wavelength of 940 nm.

[0055] In this technical solution, according to the wavelength required by the camera module to be inspected, the corresponding LED lamp group 4 is controlled by the multi-position switch 3 to provide a light source with the corresponding wavelength.

[0056] The arrangement of the LED lamp beads in each group in a ring shape around the center of the PCB board 2 can make the light source distribution more uniform.

[0057] The LED lamp groups 4 are arranged in sequence from the inside to the outside with the center of the PCB board 2 as the reference according to the sorting of wavelengths from weak to strong. In this way, the light sources with weak wavelengths are set more concentratedly, and the light sources with strong wavelengths are set relatively dispersedly, which can better provide the required light source for the camera module to be inspected.

[0058] It should be noted that, referring to Figure 1 - Figure 2 , a light-transmitting white board 5 that fits the cross-sectional shape of the cylinder 1 is also provided outside the LED lamp group 4.

[0059] The light-transmitting white board 5 mainly prevents the light source of the LED lamp group 4 from directly irradiating on the camera module. Through a certain degree of blocking by the light-transmitting white board 5, the light source of the LED lamp group 4 is more evenly distributed on the inner wall of the cylinder 1.

[0060] It should be noted that the camera module quality inspection device further includes:

[0061] A potentiometer 6;

[0062] The potentiometer 6 is arranged on the PCB board 2;

[0063] The potentiometer 6 is respectively connected to the power supply and the multi-position switch 3 and is used to adjust the light source intensity of each LED lamp group.

[0064] In this embodiment, the potentiometer 6 is respectively connected to the power supply and the multi-position switch 3 to adjust the power supply voltage, and further adjust the light source intensity of each LED lamp group.

[0065] It can be understood that in this technical solution, the cylinder 1 is used as the "lamp shade". During implementation, the second end of the cylinder 1 lamp shade is snapped onto the camera module to be inspected. According to the wavelength required by the camera module to be inspected, the corresponding LED lamp group 4 is controlled by the multi - gear switch 3 to provide a light source of the corresponding wavelength. At this time, the LED lamp group 4 and the camera module to be inspected are both in the cavity of the cylinder 1. The imaging result of the mobile terminal carrying the camera module to be inspected is used to determine whether there are defects in the camera module to be inspected. If there are no stains or dirt spots in the imaging result, it means that the camera module to be inspected passes the quality inspection. If there are stains or dirt spots in the imaging result, it means that the camera module to be inspected has defects and the quality inspection fails.

[0066] The camera module quality inspection device in this embodiment is applicable to the quality inspection work of camera modules with a wide - angle of more than 100°.

[0067] Embodiment Two

[0068] A camera module quality inspection system includes:

[0069] A PC terminal, and a camera module quality inspection device as in the above - mentioned embodiment;

[0070] The PC terminal is connected to the mobile device carrying the camera module to be inspected through a USB cable, and displays the images collected by the camera module to be inspected.

[0071] It should be noted that in this embodiment, the imaging result on the mobile device can be displayed on the PC terminal by connecting the PC terminal to the mobile device carrying the camera module to be inspected, and it can be more intuitive to determine whether there are defects in the camera module to be inspected through the imaging result.

[0072] It can be understood that the same or similar parts in the above - mentioned embodiments can be referred to each other, and the content not detailed in some embodiments can be referred to the same or similar content in other embodiments.

[0073] It should be noted that in the description of this application, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "a plurality of" refers to at least two.

[0074] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logic functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. An inspection device for a camera module, characterized in that, Comprising: A cylinder, a PCB board, a multi - gear switch, and multiple groups of LED lamp groups; Card slots are provided at both ends of the cylinder; The cross - sectional shape of the PCB board fits the cylinder; The card slot at the first end of the cylinder is used to engage the PCB board, and the card slot at the second end is used to engage the camera module to be quality - inspected; The LED lamp groups are arranged on the side of the PCB board facing the inside of the cylinder, and the multi - gear switch is arranged on the other side of the PCB board; Each gear of the multi - gear switch corresponds to each LED lamp group one by one, and is used to control the on / off of the corresponding LED lamp group; The wavelengths of each LED lamp group are different, and the light source intensity is adjustable; 2. The camera module quality inspection device according to claim 1, wherein Each LED lamp group includes multiple LED lamp beads; The LED lamp beads within each group are arranged in a ring around the center of the PCB board; 3. The camera module quality inspection device according to claim 2, characterized in that, There is a gap between the rings formed by each LED lamp group; 4. The camera module quality inspection device according to claim 3, wherein, The LED lamp groups are arranged from the inside to the outside in sequence with the center of the PCB board as the reference, sorted by wavelength from weak to strong; 5. The camera module quality inspection device according to claim 1, characterized in that, A light - transmissive white board that fits the cross - sectional shape of the cylinder is also arranged outside the LED lamp group; 6. The camera module quality inspection device according to claim 1, wherein, Also comprising: A potentiometer; The potentiometer is arranged on the PCB board; The potentiometer is respectively connected to the power supply and the multi - gear switch, and is used to adjust the light source intensity of each LED lamp group; 7. The camera module quality inspection device according to claim 1, characterized in that The PCB board is fixed on the card slot at the first end of the cylinder by sealant; 8. An inspection system for a camera module, characterized in that, Comprising: A PC terminal, and a camera module quality - inspection device according to any one of claims 1 - 7; The PC terminal is connected to a mobile device carrying the camera module to be quality - inspected through a USB cable, and displays the images collected by the camera module to be quality - inspected.

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