Camera module focus assembly system and method, lens assembly parameter acquisition device and photosensitive assembly parameter acquisition device

Abstract

The present invention provides a camera module focus assembly system and method, a lens component parameter acquisition device and a photosensitive component parameter acquisition device, wherein the camera module focus assembly method is characterized by comprising: acquiring performance parameters of a photosensitive component on a photosensitive component carrier; acquiring performance parameters of a lens component; analyzing suitable focus assembly positions of the photosensitive component and the lens component according to the performance parameters of the photosensitive component and the performance parameters of the lens component; and assembling the photosensitive component and the lens component accordingly according to the suitable focus assembly position, thereby improving assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the field of camera modules, and more particularly to a camera module focus assembly system and method, a lens component parameter acquisition device and a photosensitive component parameter acquisition device, so as to decompose the active focus process in the prior art, test and acquire the parameters of the optical component and the photosensitive component in the front-end process, so that the active focus step can be processed in parallel with other steps, thereby improving the assembly efficiency. Background Art

[0002] In recent years, camera modules have become an indispensable part of electronic terminals such as mobile phones. However, with the continuous development of technology, consumers have higher and higher requirements for the imaging quality of camera modules, and the demand for camera modules with high imaging quality is getting higher. Correspondingly, the existing market demand and requirements have challenged the existing production capacity.

[0003] The camera module includes a photosensitive component and a lens component disposed on the photosensitive component. The photosensitive component includes a photosensitive element and a circuit board, and the photosensitive element is attached to the circuit board. The lens assembly includes an optical lens, and some lens assemblies also include a lens barrel and a lens barrel support for supporting the optical lens. The relative position of the lens assembly and the photosensitive component, especially the relative position of the optical axis of the optical lens and the photosensitive element, has a decisive influence on the imaging quality of the camera module, and the two need to be precisely positioned relative to each other. In low-pixel camera modules, mechanical alignment is used to achieve assembly and fixation of the two, but this method is obviously no longer applicable to the accuracy of relative positioning in camera modules with high imaging quality.

[0004] In order to achieve precise positioning of the optical component and the photosensitive component, the existing camera module assembly method adopts active alignment to adjust the assembly. The specific steps include: the photosensitive component is fixed in a suitable position, the photosensitive element is lit, the mechanical device clamps the lens component and adjusts it in the six degrees of freedom, and the relative position of the lens component relative to the photosensitive component is adjusted by running the defocus curve to ensure that the center of the image is clear and the resolution of the four corners of the picture is uniform, and the lens component is fixed to the photosensitive component in a suitable position, and the glue is pre-cured to complete the active alignment adjustment and fixation. This process requires a complete defocus curve test to determine the position of the lens assembly relative to the photosensitive element in the direction of the optical axis, and then the lens assembly is shifted and tilted relative to the photosensitive element at this position, that is, the relative position of the optical center of the lens assembly and the center of the photosensitive element is adjusted, and the deflection angle of the optical axis of the photosensitive element and the vertical direction of the photosensitive element is adjusted.

[0005] However, each camera module needs to be aligned one by one during the assembly process, which takes a lot of time to ensure the alignment accuracy. The existing camera module assembly method takes a long time to complete a single module, is inefficient, and is difficult to meet the existing production tasks and production speed. Summary of the invention

[0006] One object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, so that the focusing step and other steps of the assembly process, such as loading, dispensing or pre-curing steps, can be processed in parallel, thereby improving production speed and production efficiency.

[0007] Another object of the present invention is to provide a camera module focus assembly system and method, a lens component parameter acquisition device and a photosensitive component parameter acquisition device, wherein the focus assembly system realizes precise positioning of the relative positions of the optical component and the photosensitive component according to the various parameters of the optical component and the photosensitive component, thereby realizing the assembly of a camera module with high imaging quality to meet the needs of large-scale production.

[0008] Another object of the present invention is to provide a camera module focus assembly system and method, a lens component parameter acquisition device and a photosensitive component parameter acquisition device, wherein the various parameters of the optical component and the photosensitive component are processed according to a preset algorithm, and the appropriate assembly position of the two can be directly obtained, so that the focus assembly can be directly performed. Compared with the prior art method of adjusting the position of a single module one by one, the efficiency is higher and the accuracy is higher.

[0009] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the photosensitive assembly can be directly assembled with the lens assembly on the photosensitive assembly carrier. Different from the method of grabbing and fixing the photosensitive assemblies one by one in the prior art, the solution of the present invention can save time and improve efficiency.

[0010] Another object of the present invention is to provide a camera module focus assembly system and method, a lens component parameter acquisition device and a photosensitive component parameter acquisition device, which are circulated in the focus assembly system in the form of a carrier plate to facilitate mass production and improve assembly efficiency.

[0011] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the photosensitive assembly is retained on a photosensitive assembly carrier for circulation, thereby reducing the step of sucking the photosensitive assembly with a suction nozzle, thereby reducing the risk of contamination of the color filter surface caused by this step.

[0012] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the parameters of the lens assembly can be directly measured and the various optical parameters of the lens assembly can be recorded after the lens assembly completes the assembly of the lens barrel and the lens, without having to wait until the measurement during the assembly process, so as to further reduce the steps and time of focus assembly.

[0013] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the lens assembly parameter acquisition device provides reference positioning to establish an accurate test inspiration state for subsequent test steps such as rotation offset test and defocus test, thereby avoiding the lens assembly from being skewed during the test process.

[0014] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the lens assembly positioning module, the shooting position of the rotation offset module and the defocus test position of the lens assembly parameter acquisition device are at the same height and in the same horizontal direction as much as possible, thereby reducing the movement stroke.

[0015] Another object of the present invention is to provide a camera module focus assembly system and method, a lens assembly parameter acquisition device and a photosensitive assembly parameter acquisition device, wherein the lens assembly parameter acquisition device uses a preset standard reference photosensitive element to test various parameters of the lens assembly. Compared with the method in the prior art where the photosensitive element parameters and lens assembly parameters of a single module are unknown and need to be calibrated and measured one by one, the solution of the present invention uses a standard reference chip with known parameters, so that the various parameters of the lens assembly are more efficient.

[0016] In order to achieve at least one purpose of the present invention, according to one aspect of the present invention, the present invention further provides a camera module focus assembly method, comprising:

[0017] (a) obtaining performance parameters of a photosensitive component;

[0018] (b) obtaining performance parameters of a lens assembly;

[0019] (c) analyzing suitable focusing assembly positions of the photosensitive component and the lens assembly according to performance parameters of the photosensitive component and performance parameters of the lens assembly; and

[0020] (d) Assembling the photosensitive component and the lens component accordingly according to the appropriate focus assembly position.

[0021] According to one embodiment of the present invention, in the step (d), the photosensitive component and the lens assembly are assembled on a photosensitive component carrier.

[0022] According to one embodiment of the present invention, the step (a) further comprises the steps of:

[0023] (a.1) obtaining a photosensitive component distribution array of a photosensitive component carrier through a photosensitive component positioning device, and measuring the position information, optical axis optical center information and rotation data information of the photosensitive component located on the photosensitive component carrier; and

[0024] (a.2) Measuring height information and tilt data information of a photosensitive element of the photosensitive component located on a photosensitive component carrier.

[0025] According to one embodiment of the present invention, the step (a.2) uses an infrared ranging device to measure the height information and tilt data information of the photosensitive element of the photosensitive component.

[0026] According to one embodiment of the present invention, the step (b) further comprises the steps of:

[0027] (b.1) positioning the lens assembly at a reference position for initial calibration;

[0028] (b.2) moving the lens assembly to a rotation data information measurement position to measure the rotation data information of the lens assembly; and

[0029] (b.3) Move the selected lens assembly to a defocus test position, perform a defocus curve test using a preset standard reference photosensitive element, and obtain the optical center of the lens assembly optical axis, the tilt data information of the lens assembly, and the height data information from the optical center of the lens assembly optical axis to the standard reference photosensitive element.

[0030] According to one embodiment of the present invention, the step (b.2) further comprises the steps of:

[0031] A bottom image of the lens assembly is captured by a second visual camera, and rotation data information of the lens assembly relative to a standard reference photosensitive element is analyzed.

[0032] According to one embodiment of the present invention, before step (d), the camera module focus assembly method further comprises:

[0033] (e) Pre-fixing the relative position of the lens assembly and the corresponding photosensitive assembly.

[0034] According to another aspect of the present invention, the present invention further provides a camera module focus assembly system, comprising:

[0035] A photosensitive component parameter acquisition device, used to acquire performance parameters of a photosensitive component;

[0036] A lens assembly parameter acquisition device, used to acquire performance parameters of a lens assembly; and

[0037] An alignment assembly device analyzes the appropriate focus assembly position of the photosensitive component and the lens component according to the performance parameters of the photosensitive component and the lens component, and assembles the two at the appropriate focus assembly position.

[0038] According to one embodiment of the present invention, the alignment assembly device includes a lens assembly adjustment device and an assembly drive device, wherein the lens assembly adjustment device adjusts the lens assembly according to a suitable focus assembly position, and the assembly drive device drives the lens assembly adjustment device carrying the lens assembly to the top of the corresponding photosensitive component so that the lens assembly and the corresponding photosensitive component can be assembled.

[0039] According to one embodiment of the present invention, the photosensitive component parameter acquisition device includes a photosensitive component positioning device, wherein the photosensitive component positioning device determines the optical axis optical center information and rotation data information of the photosensitive component.

[0040] According to one embodiment of the present invention, the photosensitive component is placed on a photosensitive component carrier, and the photosensitive component positioning device determines the position of the photosensitive component in the photosensitive component distribution array of the photosensitive component carrier.

[0041] According to one embodiment of the present invention, the photosensitive component positioning device is implemented as a first visual camera, wherein the first visual camera is located above the photosensitive component loading position of the photosensitive component positioning device, and photographs the photosensitive component carrier from a top-down perspective to obtain a measurement image of the photosensitive component carrier, so as to analyze the position of the corresponding photosensitive component located in the photosensitive component distribution array of the photosensitive component carrier, optical axis optical center information and rotation data information based on the measurement image of the photosensitive component carrier.

[0042] According to one embodiment of the present invention, the photosensitive component parameter acquisition device includes a distance measuring device, wherein the distance measuring device measures the height information and the tilt amount of the photosensitive element located in the photosensitive component.

[0043] According to an embodiment of the present invention, the distance measuring device utilizes laser testing technology and is implemented as a laser distance measuring device.

[0044] According to one embodiment of the present invention, the distance measuring device includes a transmitting and receiving device driver, wherein the transmitting and receiving device driver drives the distance measuring device to change the laser emission angle, and tests at least 3 points on the surface of the photosensitive element to obtain the tilt amount of the photosensitive element.

[0045] According to one embodiment of the present invention, the photosensitive component parameter acquisition device includes a driving device, and the photosensitive component is placed on a photosensitive component carrier, wherein when a performance parameter of the photosensitive component of the photosensitive component carrier is measured, the driving device drives the photosensitive component parameter acquisition device to move to another photosensitive component of the photosensitive component carrier to measure the performance parameter of the other photosensitive component.

[0046] According to one embodiment of the present invention, the driving device drives the photosensitive component parameter acquisition device to move in a horizontal direction.

[0047] According to one embodiment of the present invention, the lens assembly parameter acquisition device includes a lens assembly positioning device, wherein the lens assembly positioning device provides a reference position, and the lens assembly is moved to the reference position to achieve initial calibration.

[0048] According to an embodiment of the present invention, the lens assembly parameter acquisition device includes a rotation offset measurement device, wherein the initially calibrated lens assembly is moved to the rotation offset measurement device for rotation offset measurement to acquire lens assembly rotation data information.

[0049] According to an embodiment of the present invention, the rotation offset measuring device is implemented as a second visual camera, and the second visual camera captures the bottom image of the lens assembly to obtain the rotation data information of the lens assembly.

[0050] According to one embodiment of the present invention, the lens assembly parameter acquisition device includes a defocus testing device, wherein the initially calibrated lens assembly is moved to the defocus testing device for a defocus curve test to obtain the optical center of the lens assembly optical axis, the lens assembly tilt data information, and the height data information from the optical center of the lens assembly optical axis to a standard reference photosensitive element.

[0051] According to one embodiment of the present invention, the defocus testing device includes a standard reference photosensitive element, a standard reference photosensitive element actuator, a power supply device and a test target plate, wherein the standard reference photosensitive element is drivably mounted on the standard reference photosensitive element actuator, wherein the power supply device supplies power to the standard reference photosensitive element and the standard reference photosensitive element actuator, wherein the test target plate is arranged in a path for shooting of the standard reference photosensitive element, wherein during testing, the lens assembly moving device keeps the lens assembly above the standard reference photosensitive element, the standard reference photosensitive element actuator drives the standard reference photosensitive element to move, continuously adjusts the distance between the standard reference photosensitive element and the lens assembly, and the standard reference photosensitive element obtains images of the test target plate at different distances.

[0052] According to an embodiment of the present invention, the lens assembly parameter acquisition device moves the lens assembly through the lens assembly adjustment device.

[0053] According to an embodiment of the present invention, the assembly position of the alignment assembly device and the respective parameter acquisition positions of the lens assembly parameter acquisition device are at the same height and in the same horizontal direction.

[0054] According to one embodiment of the present invention, the camera module focus assembly system further includes a glue dispensing device, wherein the glue dispensing mechanism dispenses glue on the bonding surface between the photosensitive component and the lens assembly for bonding and fixing before the lens assembly and the corresponding photosensitive component are assembled.

[0055] According to one embodiment of the present invention, the camera module focus assembly system further includes a pre-curing device, wherein the pre-curing device maintains the relative position of the lens assembly and the corresponding photosensitive assembly after the two are assembled.

[0056] According to an embodiment of the present invention, the pre-curing device is implemented as an exposure lamp.

[0057] According to one embodiment of the present invention, the photosensitive component is placed on a photosensitive component carrier, and the focusing assembly device includes a photosensitive component carrier moving device, wherein the assembly driving device drives the lens assembly adjustment device to move in a single direction, and the photosensitive component carrier moving device moves the photosensitive component carrier in a direction perpendicular to the driving direction of the assembly driving device.

[0058] According to one embodiment of the present invention, the photosensitive component is placed on a photosensitive component carrier, and the alignment and assembly device assembles the corresponding photosensitive component and the lens assembly on the photosensitive component carrier.

[0059] According to another aspect of the present invention, the present invention further provides a lens assembly parameter acquisition device comprising:

[0060] A lens assembly moving device, used for moving a lens assembly;

[0061] a rotational offset measuring device, wherein the lens assembly is moved by the lens assembly moving device to the rotational offset measuring device to perform rotational offset measurement to obtain lens assembly rotation data information; and

[0062] A defocus testing device, wherein the lens assembly is moved to the defocus testing device by the lens assembly moving device to perform a defocus curve test, and obtains the optical center of the lens assembly optical axis, the lens assembly tilt data information and the height data information from the optical center of the lens assembly optical axis to a standard reference photosensitive element.

[0063] According to one embodiment of the present invention, the lens assembly parameter acquisition device further comprises a lens assembly positioning device, wherein the lens assembly positioning device provides a reference position, the lens assembly is first moved to the reference position by the lens assembly moving device to achieve initial calibration, and then moved to the rotation offset measurement device or the rotation offset measurement device to measure

[0064] According to an embodiment of the present invention, the reference positioning, the rotation data information measurement position of the rotation offset measuring device, and the defocus test position of the defocus testing device and other parameter acquisition positions are at the same height and in the same horizontal direction.

[0065] According to another aspect of the present invention, the present invention further provides a photosensitive component parameter acquisition device, comprising:

[0066] A photosensitive component positioning device, wherein the photosensitive component positioning device determines the position, optical axis optical center information and rotation data information of a photosensitive component located in a photosensitive component distribution array of a photosensitive component carrier; and

[0067] A distance measuring device is provided, wherein the distance measuring device measures the height information and tilt amount of the photosensitive element of the photosensitive component located on the photosensitive component carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a flow chart of a camera module focus assembly method according to an embodiment of the present invention.

[0069] Figure 2 It is a flow chart of a method for obtaining performance parameters of a photosensitive component in a camera module focus assembly method according to an embodiment of the present invention.

[0070] Figure 3 It is a flow chart of a method for obtaining performance parameters of a lens assembly of a camera module focus assembly method according to an embodiment of the present invention.

[0071] Figure 4 It is a structural block diagram of a camera module focus assembly system according to an embodiment of the present invention.

[0072] Figure 5 It is a structural block diagram of a camera module focus assembly system according to another embodiment of the present invention.

[0073] Figure 6 It is a structural diagram of a camera module focus assembly system according to an embodiment of the present invention.

[0074] Figure 7 It is a structural diagram of a photosensitive component parameter acquisition device of a camera module focus assembly system according to an embodiment of the present invention.

[0075] Figure 8 It is a schematic diagram of a lens assembly of a camera module focus assembly system according to an embodiment of the present invention.

[0076] Fig. 9 It is a structural diagram of a lens component parameter acquisition device of a camera module focus assembly system according to another embodiment of the present invention.

[0077] Fig.10 It is a structural diagram of an alignment assembly device of a camera module focus assembly system according to an embodiment of the present invention.

[0078] Fig.11 It is a structural diagram of an alignment assembly device of a camera module focus assembly system according to another embodiment of the present invention.

[0079] Fig.12 It is a structural block diagram of a camera module focus assembly system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0080] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0081] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0082] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0083] like Figures 1 to 12As shown, a camera module focus assembly system and method of one embodiment of the present invention are described. The camera module focus assembly system and method processes various parameters of the optical component and the photosensitive component according to a preset algorithm, and can directly obtain the appropriate assembly position of the two, and realize the precise positioning of the relative positions of the two. Compared with the method of adjusting the position of a single module one by one in the prior art, the focusing step and other steps of the camera module assembly process of the present invention, such as loading, dispensing or pre-curing steps, can be processed in parallel, thereby improving the production speed and production efficiency, realizing the assembly of camera modules with high imaging quality, meeting the needs of large-scale production, and having higher precision.

[0084] The photosensitive component 100 of the present invention includes a photosensitive element, a circuit board and a lens holder. The photosensitive element is attached to the circuit board in a communicative manner. The lens holder is used to encapsulate the photosensitive element and the circuit board, and can be formed by molding or injection molding, but is not limited to this. The specific structure of the photosensitive component 100 is not limited, and can be a COB (chip on board) photosensitive component, an MOC (model on chip) photosensitive component or an MOB (model on board) photosensitive component, etc. The lens assembly 200 of the present invention includes an optical lens. The lens assembly 200 may further include an actuator such as a motor to form an autofocus camera module.

[0085] Specifically, Figure 1 As shown, a camera module focus assembly method according to an embodiment of the present invention is described.

[0086] Step 110 : Provide a photosensitive component carrier 300 including a plurality of photosensitive components 100 .

[0087] In actual production, the photosensitive component carrier plate 300 can be moved to the transmission mechanism by the photosensitive component loading mechanism 60, so as to be provided to the next process link. A plurality of the photosensitive components 100 are regularly distributed in an array on the photosensitive component carrier plate 300 to form a photosensitive component distribution array.

[0088] Step 120: Dispense glue at the position where the photosensitive component 100 is fixed to the lens component 200.

[0089] Specifically, the photosensitive component 100 located on the photosensitive component carrier 300 is glued, and glue is dispensed on the bonding surface of the photosensitive component 100 and the lens component 200 for bonding and fixing. For example, a glue dispensing mechanism is provided, and the glue dispensing mechanism includes a mechanical arm or other mechanical structure that can achieve the same function, and a UV glue dispensing syringe is provided at a glue dispensing end of the mechanical arm. The control center controls the mechanical arm to move above the photosensitive component carrier 300 according to preset data, and performs a glue dispensing operation on the photosensitive component 100 on the photosensitive component carrier 300.

[0090] Step 130: Obtain performance parameters of the photosensitive component 100 on the photosensitive component carrier 300.

[0091] When the photosensitive component carrier 300 is transmitted and fixed to the photosensitive component parameter acquisition device, the performance parameters of each of the photosensitive components 100 contained therein can be measured, such as the position information of the photosensitive component carrier 300, the optical center information (OC position, Optical Center) and rotation data information of the optical axis of each of the photosensitive components 100, the height information and tilt data information of the photosensitive element of each of the photosensitive components 100, etc.

[0092] Specifically, the step 130 may further include the following steps:

[0093] Step 131: photograph the photosensitive component carrier 300 through a first visual camera to measure the position information, optical axis optical center information and rotation data information of the photosensitive component 100 located on the photosensitive component carrier 300.

[0094] Step 132: Measure the height information and tilt data information of the photosensitive element of the photosensitive component 100 located on the photosensitive component carrier 300.

[0095] That is to say, the first visual camera is located above the photosensitive component carrier 300, and photographs the photosensitive component carrier 300 from a top view, thereby obtaining a measurement image of the photosensitive component carrier 300. By measuring the image of the photosensitive component carrier 300, the position information, optical axis optical center information and rotation data information of each photosensitive component 100 located on the photosensitive component carrier 300 can be obtained. Furthermore, the height information (the height of the photosensitive element of the photosensitive component to a preset point, such as the height of the distance to the emitting end of the laser transmitter) and the tilt data information of the photosensitive element of each photosensitive component can be measured contactlessly by using an infrared ranging device or the like. It can be known that the above-mentioned visual camera and infrared ranging device are only examples, and those skilled in the art can also use other devices to measure the performance parameters of the photosensitive component.

[0096] It is worth mentioning that the step 131 and the step 132 can be performed simultaneously or sequentially, and the order of the steps is not limited. The step 131 can be performed first, or the step 132 can be performed first.

[0097] Step 140 : Provide a lens assembly carrier 400 including a plurality of lens assemblies 200 .

[0098] In actual production, the lens assembly carrier plate 400 can be moved to the transmission mechanism by another lens assembly loading mechanism 70, so as to be provided to the next process link. A plurality of lens assemblies 200 are regularly distributed in an array on the lens assembly carrier plate 400 to form a lens assembly distribution array. In other words, the lens assembly carrier plate 400 and the photosensitive assembly carrier plate 300 can be loaded at different locations through different loading mechanisms at the same time, synchronously, and without interfering with each other.

[0099] Step 150: Obtain performance parameters of the selected lens assembly 200.

[0100] When the lens assembly carrier 400 is transported to the lens assembly parameter acquisition device, a lens assembly 200 can be randomly selected by a suction nozzle or a mechanical claw and other devices, and its performance parameters can be measured, such as lens assembly rotation data information, lens assembly optical axis optical center, lens assembly tilt data information and lens assembly optical axis optical center to standard reference photosensitive element height data information, etc.

[0101] Specifically, the step 150 may further include the following steps:

[0102] Step 151: Position the selected lens assembly 200 at a reference position to facilitate initial calibration.

[0103] Positioning the lens assembly 200 at the reference position can ensure the initial calibration of the lens assembly 200, so that when a robot arm such as a mobile claw subsequently moves the selected lens assembly 200 from the reference position, the lens assembly 200 has been calibrated instead of being in a skewed, inverted, etc. state, thereby affecting measurement, alignment and assembly.

[0104] Step 152 : Move the selected lens assembly 200 to a rotation data information measurement position to measure the rotation data information of the selected lens assembly 200 .

[0105] There are many methods for measuring the rotation data information of the selected lens assembly 200. In one embodiment of the present invention, a second visual camera is used to capture the bottom image of the lens assembly 200 (the side of the lens assembly 200 used for mounting with the photosensitive assembly 100 is the bottom surface), thereby obtaining the rotation data information of the lens assembly 200 relative to the standard reference photosensitive element. Simply put, this is because most photosensitive elements are currently rectangular, and the actuator or lens barrel support of the lens assembly 200 is also mostly square. Through the bottom image of the lens assembly 200, it is possible to analyze whether the corresponding sides of the rectangular lens assembly and the square standard reference photosensitive element are parallel, or the rotation data information when they are not parallel.

[0106] Step 153: Move the selected lens assembly 200 to a defocus test position, perform a defocus curve test using a preset standard reference photosensitive element, and obtain the optical center of the lens assembly optical axis, the tilt data information of the lens assembly, and the height data information from the optical center of the lens assembly optical axis to the standard reference photosensitive element.

[0107] The preset standard reference photosensitive element refers to a photosensitive element with known parameters. Since the parameters of the standard reference photosensitive element are known, the selected lens assembly 200 uses the standard reference photosensitive element as a measurement standard, which is easier to measure and determine the performance parameters of the lens assembly 200 than the alignment scheme in the prior art where both the lens assembly and the photosensitive element are unknown and need to be adjusted continuously.

[0108] The defocus test position refers to a position suitable for the lens assembly 200 and the preset standard reference photosensitive element to cooperate in the defocus curve test. The tilt data information of the lens assembly is calculated by the MTF peak positions at the four corners of the defocus curve, and the optical axis optical center position of the lens assembly and the height data information from the optical axis optical center of the lens assembly to the standard reference photosensitive element (hereinafter referred to as the lens assembly height information) are obtained by the Mark point coordinates.

[0109] During the defocus curve test, the lens assembly 200 can be driven, and a preset standard reference photosensitive element can also be driven to achieve a change in the distance between the lens assembly 200 and the preset standard reference photosensitive element. In one embodiment of the present invention, the lens assembly 200 is moved and fixed to the defocus test position, and the standard reference photosensitive element is drivably mounted on an actuator, such as a high-speed voice coil motor. During the test, the high-speed voice coil motor drives the standard reference photosensitive element to adjust the distance between the lens assembly 200 and the preset standard reference photosensitive element, so that the clear position of the standard reference chip relative to the lens of the lens assembly 200 can be quickly obtained, thereby determining the height data information from the optical center of the optical axis of the lens assembly to the standard reference photosensitive element.

[0110] Alternatively, the performance parameters of the selected lens assembly 200 can be completed in the front-end process, and the various performance parameters of the lens assembly can be measured and recorded after the lens assembly completes the assembly of the lens barrel and the lens. For example, an identification pattern can be set at any position of the lens assembly 200 that does not affect the optical imaging, such as a QR code, for marking and recording the performance parameters of the lens assembly. During the focusing assembly process, the identification pattern of the lens assembly is scanned and identified by the identification recognition device to obtain the corresponding performance parameters of the lens assembly 200. For example, the performance parameters of the lens assembly are recorded in an electronic file, and a corresponding number is set for the corresponding lens assembly. During the focusing assembly process, the corresponding number set for the lens assembly is read by shooting, and the corresponding electronic file record is retrieved to obtain the corresponding performance parameters of the lens assembly.

[0111] It is worth mentioning that the parameter acquisition process of the lens assembly 200 and the parameter acquisition process of the photosensitive assembly 100 can be performed in parallel without interfering with each other. That is, the steps 110 to 130 and the steps 140 to 150 can be performed in parallel. Figure 1 The order of step 152 and step 153 is not certain, and step 152 can be performed first, or step 153 can be performed first.

[0112] Step 160: According to the performance parameters of the photosensitive component 100 and the performance parameters of the lens component 200, the appropriate focusing assembly positions of the photosensitive component 100 and the lens component 200 are analyzed and assembled at corresponding positions.

[0113] According to the information of the optical center of the optical axis of the lens assembly and the optical center of the optical axis of the photosensitive assembly, the rotation data information of the lens assembly and the rotation data information of the photosensitive assembly, the tilt data information of the lens assembly and the tilt data information of the photosensitive assembly, and the height information of the photosensitive element and the height information of the lens assembly, the appropriate focus assembly position of the photosensitive assembly 100 and the lens assembly 200 can be analyzed. The selected lens assembly 200 is adjusted to be in a suitable position relative to the corresponding photosensitive assembly 100, and the position information of the photosensitive assembly 100 on the photosensitive assembly carrier 300 can be used to assemble the selected lens assembly 200 to the corresponding photosensitive assembly 100 at a suitable focus assembly position.

[0114] Step 170: Pre-fix the relative position of the lens assembly 200 and the corresponding photosensitive assembly 100.

[0115] The glue dispensed in step 120 can be solidified by the exposure lamp, thereby maintaining the relative position of the lens assembly 200 and the corresponding photosensitive assembly 100. That is, the lens assembly and the photosensitive assembly are fixed at the relative position calculated by the control center, and at this time, the obtained module is maintained at the position of the original photosensitive assembly on the carrier.

[0116] like Figures 4 to 12 As shown, a camera module focus assembly system according to an embodiment of the present invention is described. The camera module focus assembly method can be applied to the camera module focus assembly system to achieve the advantages and purposes of the present invention.

[0117] Specifically, the camera module focus assembly system includes a photosensitive component parameter acquisition device 10, a lens component parameter acquisition device 20 and an alignment assembly device 30. The photosensitive component parameter acquisition device 10 acquires the performance parameters of each photosensitive component 100 of the photosensitive component carrier 300. The lens component parameter acquisition device 20 acquires the performance parameters of the lens component 200. The alignment assembly device 30 analyzes the appropriate focus assembly position of the two according to the performance parameters of the photosensitive component 100 and the performance parameters of the lens component 200, and assembles them.

[0118] As described above, the photosensitive component parameter acquisition device 10 can acquire performance parameters such as the position information of each photosensitive component 100 located on the photosensitive component carrier 300, the optical axis optical center information and rotation data information of each photosensitive component 100, and the height information and tilt data information of the photosensitive element of each photosensitive component 100. The lens component parameter acquisition device 20 can acquire performance parameters such as the lens component rotation data information, the optical axis optical center of the lens component, the lens component tilt data information, and the height data information from the optical axis optical center of the lens component to the standard reference photosensitive element.

[0119] In one embodiment of the present invention, the photosensitive component parameter acquisition device 10 has a photosensitive component loading position 14, and includes a photosensitive component positioning device 11 and a distance measuring device 12. The photosensitive component loading position 14 is used to load and fix the photosensitive component carrier 300. When the photosensitive component carrier 300 is transported to the photosensitive component parameter acquisition device 10, the photosensitive component parameter acquisition device 10 fixes it to the photosensitive component loading position 14 for subsequent parameter measurement. The photosensitive component positioning device 11 is used to determine the position of the photosensitive component 100 in the photosensitive component distribution array of the photosensitive component carrier 300, the optical axis optical center information and the rotation data information. The distance measuring device 12 is used to measure the height information and tilt amount of the photosensitive element of each photosensitive component located on the photosensitive component carrier.

[0120] The photosensitive component positioning device 11 includes a first visual camera 111, which is used to take a picture of the photosensitive component located on the photosensitive component carrier, so as to obtain a measurement image of the photosensitive component carrier 300. The first visual camera 111 is located above the photosensitive component loading position 14, and takes a picture of the photosensitive component carrier 300 from a top view, so as to obtain a measurement image of the photosensitive component carrier 300. According to the measurement image of the photosensitive component carrier 300, the position of the photosensitive component 100 in the photosensitive component distribution array of the photosensitive component carrier 300, the optical axis optical center information and the rotation data information can be analyzed. Further, the photosensitive component positioning device 11 can also include a light source device 112 to provide a light source for the first visual camera 111. The light source device 112 can be provided above the photosensitive component loading position 14, in parallel with the first visual camera 111, or the light source device 112 is a ring light, located between the first visual camera and the loading position, or other positions that do not block the shooting, which is not limited by the present invention.

[0121] The distance measuring device 12 can be implemented by using infrared laser and other technologies. Taking laser testing technology as an example, the distance measuring device 12 includes a transmitting and receiving device 121 for transmitting and receiving lasers, so as to calculate the height information and tilt amount of the photosensitive elements of each photosensitive component according to the laser data. For example, the distance measuring device 12 is installed above the photosensitive component loading position 14, parallel to the first visual camera 111 or other positions that do not block the shooting. The transmitting and receiving device 121 transmits a laser to the corresponding photosensitive component 100, and receives the reflected laser, and can calculate the height information and tilt amount of the photosensitive element of the corresponding photosensitive component 100 according to laser data such as laser speed, reflection time and reflected laser offset angle.

[0122] Furthermore, the distance measuring device 12 includes a transmitter-receiver device driver 122, which is used to drive the transmitter-receiver device 121 to change the laser emission angle. In order to measure the tilt of the photosensitive element of the photosensitive component 100, at least three positions of the photosensitive element need to be measured to determine the tilt of the plane where the photosensitive element is located. Preferably, at least four positions of the photosensitive element are measured, that is, the transmitter-receiver device driver 122 drives the transmitter-receiver device 121 to emit lasers at four different angles.

[0123] The photosensitive component parameter acquisition device 10 further includes a driving device 13, which is used to drive the first visual camera 111 and / or the distance measuring device 12 to move. After the performance parameters of one of the photosensitive components 100 of the photosensitive component carrier 300 are measured, the driving device 13 drives the first visual camera 111 and / or the distance measuring device 12 to move above another photosensitive component 100 of the photosensitive component carrier 300 to measure the performance parameters of another photosensitive component 100. That is, the first visual camera 111 and / or the distance measuring device 12 are installed on the driving device 13 in a drivable manner, and the stop point of the driving device 13 driving the first visual camera 111 and / or the distance measuring device 12 is the same as the photosensitive component distribution array of the photosensitive component carrier 300, so as to facilitate measurement one by one. However, the present invention does not limit the driving route of the driving device 13, which can be an S-shaped row-by-row or column-by-column drive stop measurement, or a random stop measurement until all measurements are completed. That is to say, according to the array distribution position of the photosensitive components of the photosensitive component carrier 300, the video driver driving device 13 drives the first visual camera 111 and / or the distance measuring device 12 to correspond to the positions of each photosensitive component 100 in sequence.

[0124] Preferably, the driving device 13 drives the first visual camera 111 and / or the distance measuring device 12 to move in the horizontal direction, that is, to move in the X-axis direction and the Y-axis direction, so as to avoid longitudinal movement and reduce the moving path. The driving method of the driving device 13 is not limited, and it can include an X-direction driving unit 131 and a Y-direction driving unit 132, and the X-direction driving unit 131 and the Y-direction driving unit 132 are independent of each other and do not interfere with each other, such as Figure 7 For example, the X-direction driving unit 131 may be implemented as a pulley device that moves a preset distance, and the Y-direction driving unit 132 may be implemented as a telescopic arm that can extend and retract a preset distance, and so on.

[0125] The lens assembly parameter acquisition device 20 is used to acquire the performance parameters of the lens assembly 200. In one embodiment of the present invention, the performance parameters of the lens assembly 200 are completed in the front-end process, for example, the various performance parameters of the lens assembly can be measured and recorded after the lens assembly completes the assembly of the lens barrel and the lens. For example, a QR code or other identification pattern can be set at any position of the lens assembly 200 that does not affect the optical imaging, for marking and recording the performance parameters of the lens assembly 200, such as Figure 8As shown. During the focusing assembly process, the identification pattern of the lens assembly 200 is read by the identification recognition device equipped with the lens assembly parameter acquisition device 20 to obtain the corresponding performance parameters of the lens assembly 200. For example, the performance parameters of the lens assembly 200 are recorded in an electronic file, and a corresponding number is set for the corresponding lens assembly 200. During the focusing assembly process, the lens assembly 200 is photographed by the lens assembly parameter acquisition device 20 to set the corresponding number, and the corresponding electronic file record is retrieved to obtain the corresponding performance parameters.

[0126] In another embodiment of the present invention, Fig. 9 As shown, the lens assembly parameter acquisition device 20 includes a lens assembly positioning device 21, a rotation offset measuring device 22, a defocus test device 23 and a lens assembly moving device 24. A lens assembly 200 is selected from the lens assembly carrier 400 and positioned to the lens assembly positioning device 21. The lens assembly positioning device 21 provides a reference position, and the selected lens assembly 200 is moved to the reference position by the lens assembly moving device 24. The reference position allows the lens assembly 200 to be placed forward (the state in which the lens assembly and the photosensitive component are installed is forward), so that it is initially calibrated to avoid being in an inverted or tilted state. The lens assembly moving device 24 moves the lens assembly 200 that has been initially calibrated to the rotation offset measuring device 22 for rotation offset measurement to obtain lens assembly rotation data information. The lens assembly moving device 24 moves the initially calibrated lens assembly 200 to the defocus testing device 23 for defocus curve testing, thereby obtaining performance parameters such as the optical center of the lens assembly optical axis, the lens assembly tilt data information, and the height data information from the optical center of the lens assembly optical axis to the standard reference photosensitive element.

[0127] In one embodiment of the present invention, the rotation offset measuring device 22 can be implemented as a second visual camera. The second visual camera captures the bottom image of the lens assembly 200, thereby obtaining the rotation data information of the lens assembly. The lower surface contour of the lens assembly 200 is mostly a rectangle, and the photosensitive element in the photosensitive component and the lens seat on the photosensitive component are also rectangular. In order to achieve the miniaturization of the camera module, the sides of the rectangular outline of the lens assembly 200 need to be parallel to the sides of the rectangular outline of the lens seat of the photosensitive component to reduce the size and unnecessary space, that is, the rotation offset of the lens assembly 200 is obtained with reference to the known standard reference photosensitive element.

[0128] In one embodiment of the present invention, the defocus test device 23 includes a standard reference photosensitive element 231, a standard reference photosensitive element actuator 232, a power supply device 233 and a test target plate 234. The standard reference photosensitive element 231 is mounted on the standard reference photosensitive element actuator 232 in a drivable manner, and the standard reference photosensitive element actuator 232 drives the standard reference photosensitive element 231 to move. The power supply device 233 supplies power to the standard reference photosensitive element 231 and the standard reference photosensitive element actuator 232, and can light up the standard reference photosensitive element 231 and drive the standard reference photosensitive element actuator 232 to move. The test target plate 234 is set in the path of the standard reference photosensitive element 231 for shooting.

[0129] During the defocus curve test, the lens assembly moving device 24 keeps the lens assembly 200 at the defocus test position, that is, above the standard reference photosensitive element 231. The standard reference photosensitive element 231 is illuminated to obtain the reflected light of the test target plate 234. The standard reference photosensitive element actuator 232 drives the standard reference photosensitive element 231 to move, and continuously adjusts the distance between the standard reference photosensitive element 231 and the lens assembly 200. The standard reference photosensitive element 231 obtains the image of the test target plate 234 at different intervals. According to the image of the test target plate 234 at different intervals, the clear position of the standard reference photosensitive element 231 relative to the lens assembly 200 can be determined by using a preset algorithm, so as to determine the height of the lens assembly 200. At the same time, the defocus curve obtained by the defocus test and the four-corner MTF peak position are used to calculate the tilt of the lens assembly, and the optical axis optical center position of the lens assembly is obtained by the Mark point coordinates. Those skilled in the art should know the specific principles and basic implementation methods of the defocus curve test, which will not be repeated here.

[0130] Preferably, the reference positioning, the rotation data information measuring position of the rotation offset measuring device 22, and the defocus test position of the defocus test device 23 are at the same height and in the same horizontal direction as much as possible. When the rotation offset measuring device 22 is implemented as a second visual camera, the rotation data information measuring position is the photo taking position of the second visual camera. The rotation data information measuring position refers to the position of the lens assembly when the rotation offset measuring device 22 is tested. The defocus test position refers to the position of the lens assembly when the defocus test device 23 is tested. In the process of testing the lens assembly, the lens assembly moving device 24 moves the lens assembly from the reference positioning to the photo taking position above the second visual camera, and moves it to the defocus test position for defocus testing. In order to reduce the movement stroke, the reference positioning, the rotation data information measuring position and the defocus test position are at the same height and in the same horizontal direction as much as possible.

[0131] It is worth mentioning that the installation positions of the defocus test device 23 and the rotation offset measurement device 22 are not limited, that is, the test order of the lens assembly 200 is not limited. The lens assembly moving device 24 can first move the lens assembly 200 to the defocus test device 23 for defocus curve testing, or first move it to the rotation offset measurement device 22 for rotation offset measurement.

[0132] The focusing assembly device 30 obtains the performance parameters of the photosensitive component 100 and the performance parameters of the lens component 200, analyzes the appropriate focusing assembly positions of the two, and assembles them. The focusing assembly device 30 includes a control center 31, which is used to analyze the appropriate focusing assembly positions of the two according to a preset algorithm. For example, according to the optical center of the optical axis of the lens component and the optical center of the optical axis of the photosensitive component, the rotation data information of the lens component and the rotation data information of the photosensitive component, the tilt data information of the lens component and the tilt data information of the photosensitive component, and the height information of the photosensitive element and the height information of the lens component, the appropriate focusing assembly positions of the photosensitive component 100 and the lens component 200 can be analyzed.

[0133] The focus assembly device 30 includes a lens assembly adjustment device 32 and an assembly drive device 33. The lens assembly adjustment device 32 adjusts the selected lens assembly 200 to a suitable focus assembly position according to the analyzed suitable focus assembly position. The assembly drive device 33 drives the lens assembly adjustment device 32 carrying the lens assembly 200 to the top of the photosensitive component carrier 300 corresponding to the photosensitive component 100 located at the photosensitive component loading position 14. The lens assembly adjustment device 32 installs the adjusted lens assembly 200 on the corresponding photosensitive component 100 according to the suitable focus assembly position.

[0134] In one embodiment of the present invention, the lens assembly adjusting device 32 and the lens assembly moving device 24 of the lens assembly parameter acquiring device 20 are the same device. Figure 6As shown, for example, it is implemented as a six-degree-of-freedom clamping device. Taking the six-degree-of-freedom clamping device as an example, the six-degree-of-freedom clamping device clamps the lens assembly and transfers it between the lens assembly parameter acquisition device 20 and the focus assembly device 30. That is, the six-degree-of-freedom clamping device clamps the lens assembly 200 and moves it from the reference positioning to the rotation offset measuring device 22, and moves it to the defocus test position. After the parameters are acquired, the six-degree-of-freedom clamping device clamps the lens assembly 200 and adjusts the selected lens assembly 200 to a suitable focus assembly position according to the analyzed suitable focus assembly position. The assembly drive device 33 drives the six-degree-of-freedom clamping device with the lens assembly 200 to move to the top of the photosensitive component carrier 300 corresponding to the photosensitive component 100, as shown Fig.10 Preferably, the assembly position of the focus assembly device 30 and the reference positioning, the rotation data information measurement position of the rotation offset measuring device 22, and the defocus test position of the defocus test device 23 and other parameter acquisition positions are as high as possible and in the same horizontal direction to reduce the accumulated error of the movement during the movement.

[0135] In one embodiment of the present invention, the assembly driving device 33 drives the lens assembly adjusting device 32 to move in a single direction, for example, only in the X direction or only in the Y direction. Fig.11 As shown. Correspondingly, the focusing assembly device 30 includes a photosensitive component carrier moving device 34, which is used to move the photosensitive component carrier 300 in a direction perpendicular to the driving direction of the assembly driving device 33, for example, only in the Y direction or only in the X direction. The photosensitive component carrier moving device 34 is installed on the photosensitive component loading position 14, and the photosensitive component loading 300 is positioned on the photosensitive component carrier moving device 34 in a drivable manner. When the assembly driving device 33 drives the lens assembly adjustment device 32 to move in the X direction, if a column of the photosensitive components 100 has been aligned and assembled, the photosensitive component carrier moving device 34 drives the photosensitive component loading 300 to move in the Y direction, so that the next column of the photosensitive components 100 is located in the moving direction of the lens assembly adjustment device 32 to be assembled.

[0136] Further, the camera module focus assembly system includes a glue dispensing device 40 for dispensing glue before the lens assembly 200 and the corresponding photosensitive assembly 100 are assembled. In one embodiment of the present invention, the glue dispensing device 40 dispenses glue before the photosensitive assembly 100 is subjected to a performance test. Preferably, the glue dispensing device 40 dispenses glue on the bonding surface where the photosensitive assembly 100 and the lens assembly 200 are used for bonding and fixing. For example, the glue dispensing device 40 includes a robotic arm and a UV glue dispensing syringe at one end of the robotic arm, and the robotic arm is controlled by the control center 31 to move above the photosensitive assembly carrier to perform a glue dispensing operation on the photosensitive assembly on the photosensitive assembly carrier.

[0137] When the focusing assembly device 30 assembles the lens assembly 200 and the corresponding photosensitive assembly 100, the glue dispensing device 40 has already implemented the glue dispensing step. Further, the focusing assembly device 30 includes a pre-curing device 35 for maintaining the relative position of the lens assembly 200 and the corresponding photosensitive assembly 100. In one embodiment of the present invention, the pre-curing device 35 is implemented as an exposure lamp. The glue dispensed by the glue dispensing device 40 will solidify under the exposure of the exposure lamp, thereby achieving pre-curing to maintain the relative position of the two.

[0138] It is worth mentioning that in order to further improve production efficiency, manufacturers can set up multiple production lines for parallel production, such as Fig.12 The parallel production lines can share a material unloading mechanism 50, or can use different material unloading mechanisms, which is not limited by the present invention.

[0139] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A camera module focus assembly method, characterized in that: include: (a) photographing a measurement image of a photosensitive component carrier plate by a first visual camera from a top-down perspective, obtaining position information, optical axis optical center information, and rotation data information of a photosensitive component located in a photosensitive component distribution array of the photosensitive component carrier plate, and measuring height information and tilt data information of a photosensitive element of the photosensitive component located on the photosensitive component carrier plate by an infrared distance measuring device; (b) selecting a lens assembly and positioning it to a lens assembly positioning device, wherein the lens assembly positioning device provides a reference position, the selected lens assembly is moved to the reference position by a lens assembly moving device, and the reference position causes the lens assembly to be placed in a forward direction, moving the lens assembly to a rotation data information measurement position, measuring the rotation data information of the lens assembly and moving the selected lens assembly to a defocus test position, performing a defocus curve test using a preset standard reference photosensitive element, and obtaining the optical axis optical center information of the lens assembly, the tilt data information of the lens assembly, and the height data information from the optical axis optical center of the lens assembly to the standard reference photosensitive element; (c) processing the rotation data information, optical axis optical center information, tilt data information and height data information from the optical axis optical center of the lens assembly to the standard reference photosensitive element, as well as the position information, optical axis optical center information and rotation data information of the photosensitive element of the photosensitive element in the photosensitive element distribution array of the photosensitive element carrier according to a preset algorithm, and directly obtaining the proper assembly position of the lens assembly and the photosensitive element; and (d) Assembling the photosensitive component and the lens component accordingly according to the appropriate assembly position.

2. The camera module focus assembly method according to claim 1, wherein in the step (d), the photosensitive component and the lens assembly are assembled on a photosensitive component carrier.

3. The camera module focusing assembly method according to claim 1, wherein the step (b) further comprises the steps of: A bottom image of the lens assembly is captured by a second visual camera, and rotation data information of the lens assembly relative to a standard reference photosensitive element is analyzed.

4. The camera module focusing assembly method according to claim 2, wherein the step (b) further comprises the steps of: A bottom image of the lens assembly is captured by a second visual camera, and rotation data information of the lens assembly relative to a standard reference photosensitive element is analyzed.

5. A camera module focus assembly system, characterized in that: include: A photosensitive component parameter acquisition device, used for photographing a photosensitive component carrier plate by a first visual camera to obtain a measurement image of the photosensitive component carrier plate, obtaining position information, optical axis optical center information and rotation data information of a photosensitive component located in a photosensitive component distribution array of the photosensitive component carrier plate, and measuring the height information and tilt data information of a photosensitive element of the photosensitive component located on the photosensitive component carrier plate by using an infrared distance measuring device; A lens assembly parameter acquisition device, used for selecting a lens assembly and positioning it to a lens assembly positioning device, wherein the lens assembly positioning device provides a reference position, the selected lens assembly is moved to the reference position by a lens assembly moving device, and the reference position causes the lens assembly to be placed forward, moves the lens assembly to a rotation data information measurement position, measures the rotation data information of the lens assembly, and moves the selected lens assembly to a defocus test position, performs a defocus curve test using a preset standard reference photosensitive element, thereby obtaining optical axis optical center information of the lens assembly, tilt data information of the lens assembly, and height data information from the optical axis optical center of the lens assembly to the standard reference photosensitive element; and An alignment assembly device processes, according to a preset algorithm, the position information of the photosensitive component in the photosensitive component distribution array of the photosensitive component carrier, the optical axis optical center information and the rotation data information, the height information and the tilt data information of the photosensitive element of the photosensitive component, and the rotation data information, the optical axis optical center information, the tilt data information and the height data information from the optical axis optical center of the lens assembly to the standard reference photosensitive element, so as to directly obtain a suitable focusing assembly position for the two, and assemble the two at the suitable focusing assembly position.

6. The camera module focus assembly system according to claim 5, wherein the alignment assembly device comprises a lens assembly adjustment device and an assembly drive device, wherein the lens assembly adjustment device adjusts the lens assembly according to a suitable focus assembly position, and the assembly drive device drives the lens assembly adjustment device carrying the lens assembly to the top of the corresponding photosensitive component so that the lens assembly and the corresponding photosensitive component can be assembled.

7. The camera module focus assembly system according to claim 5, wherein the ranging device comprises a transmitting and receiving device driver, wherein the transmitting and receiving device driver drives the ranging device to change the laser emission angle, and tests at least 3 points on the surface of the photosensitive element to obtain the tilt amount of the photosensitive element.

8. The camera module focus assembly system according to claim 5, wherein the photosensitive component parameter acquisition device includes a driving device, and the photosensitive component is placed on a photosensitive component carrier, wherein when a performance parameter of the photosensitive component of the photosensitive component carrier is measured, the driving device drives the photosensitive component parameter acquisition device to move to another photosensitive component of the photosensitive component carrier to measure the performance parameter of the other photosensitive component.

9. The camera module focus assembly system according to claim 8, wherein the driving device drives the photosensitive component parameter acquisition device to move in a horizontal direction.

10. The camera module focus assembly system according to claim 5, wherein the lens assembly parameter acquisition device comprises a rotation offset measurement device, wherein the initially calibrated lens assembly is moved to the rotation offset measurement device for rotation offset measurement to obtain lens assembly rotation data information.

11. The camera module focus assembly system according to claim 10, wherein the rotation offset measuring device is implemented as a second visual camera, and the second visual camera captures the bottom image of the lens assembly to obtain the rotation data information of the lens assembly.

12. The camera module focus assembly system according to claim 5, wherein the lens assembly parameter acquisition device comprises a defocus test device, wherein the initially calibrated lens assembly is moved to the defocus test device for defocus curve testing to obtain the optical center of the lens assembly optical axis, the lens assembly tilt data information, and the height data information from the optical center of the lens assembly optical axis to a standard reference photosensitive element.

13. The camera module focus assembly system according to claim 12, wherein the defocus test device comprises a standard reference photosensitive element, a standard reference photosensitive element actuator, a power supply device and a test target plate, wherein the standard reference photosensitive element is drivably mounted on the standard reference photosensitive element actuator, wherein the power supply device supplies power to the standard reference photosensitive element and the standard reference photosensitive element actuator, wherein the test target plate is arranged in a path for shooting of the standard reference photosensitive element, wherein during testing, the lens assembly moving device keeps the lens assembly above the standard reference photosensitive element, the standard reference photosensitive element actuator drives the standard reference photosensitive element to move, continuously adjusts the distance between the standard reference photosensitive element and the lens assembly, and the standard reference photosensitive element obtains images of the test target plate at different distances.

14. The camera module focus assembly system according to claim 5 further comprises a glue dispensing device, wherein the glue dispensing mechanism dispenses glue on the bonding surface between the photosensitive component and the lens component for bonding and fixing before the lens component and the corresponding photosensitive component are assembled.

15. The camera module focus assembly system according to claim 14 further comprises a pre-curing device, wherein the pre-curing device maintains the relative position of the lens assembly and the corresponding photosensitive assembly after the lens assembly and the corresponding photosensitive assembly are assembled.

16. The camera module focus assembly system according to claim 15, wherein the pre-curing device is implemented as an exposure lamp.

17. The camera module focus assembly system according to claim 6, wherein the photosensitive component is placed on a photosensitive component carrier, the alignment assembly device includes a photosensitive component carrier moving device, wherein the assembly drive device drives the lens assembly adjustment device to move in a single direction, and the photosensitive component carrier moving device moves the photosensitive component carrier in a direction perpendicular to the driving direction of the assembly drive device.

18. The camera module focus assembly system according to claim 6, wherein the photosensitive component is placed on a photosensitive component carrier, and the alignment assembly device assembles the corresponding photosensitive component and the lens assembly on the photosensitive component carrier.

19. A lens assembly parameter acquisition device, characterized in that: include: A lens assembly moving device, used for moving a lens assembly; a rotation offset measuring device, wherein the lens assembly is moved by the lens assembly moving device to the rotation offset measuring device to perform rotation offset measurement, and obtain lens assembly rotation data information; and A defocus testing device, wherein the lens assembly moving device is configured to hold the lens assembly in a defocus testing position, and the defocus testing device is configured to perform a defocus curve test on the lens assembly held in the defocus testing position to obtain the optical axis optical center of the lens assembly, the tilt data information of the lens assembly, and the height data information from the optical axis optical center of the lens assembly to a standard reference photosensitive element of the defocus testing device, wherein the defocus testing position is configured to be located above the standard reference photosensitive element.

20. The lens assembly parameter acquisition device according to claim 19 further comprises a lens assembly positioning device, wherein the lens assembly positioning device provides a reference position, the lens assembly is first moved to the reference position by the lens assembly moving device to achieve initial calibration, and then moved to the rotational offset measuring device or the rotational offset measuring device is measured.

21. The lens assembly parameter acquisition device according to claim 19, wherein the rotation offset measurement device is implemented as a second visual camera, and the second visual camera captures the bottom image of the lens assembly to obtain the lens assembly rotation data information.

22. The lens assembly parameter acquisition device according to claim 19, wherein the defocus test device comprises a standard reference photosensitive element, a standard reference photosensitive element actuator, a power supply device and a test target plate, wherein the standard reference photosensitive element is drivably mounted on the standard reference photosensitive element actuator, wherein the power supply device supplies power to the standard reference photosensitive element and the standard reference photosensitive element actuator, wherein the test target plate is arranged in a path for the standard reference photosensitive element to shoot, wherein during testing, the lens assembly moving device keeps the lens assembly above the standard reference photosensitive element, the standard reference photosensitive element actuator drives the standard reference photosensitive element to move, and continuously adjusts the distance between the standard reference photosensitive element and the lens assembly, and the standard reference photosensitive element acquires images of the test target plate at different distances.

23. The lens assembly parameter acquisition device according to claim 20, wherein the reference positioning, the rotation data information measurement position of the rotation offset measuring device, and the defocus test position parameter acquisition position of the defocus testing device are at the same height and in the same horizontal direction.

24. A device for acquiring parameters of a photosensitive component, characterized in that: include: a photosensitive component positioning device, the photosensitive component positioning device is implemented as a first visual camera, wherein the first visual camera is located above the photosensitive component loading position of the photosensitive component parameter acquisition device, and takes a bird's-eye view of the photosensitive component carrier to obtain a measurement image of the photosensitive component carrier, so as to analyze the position of the corresponding photosensitive component located in the photosensitive component distribution array of the photosensitive component carrier, the optical axis optical center information and the rotation data information according to the measurement image of the photosensitive component carrier; and A distance measuring device is installed above the photosensitive component loading position, and the distance measuring device includes a transmitting and receiving device, which transmits laser to the corresponding photosensitive component and receives reflected laser, so as to calculate the height information and tilt amount of the photosensitive element of the corresponding photosensitive component according to the laser speed, reflection time and reflected laser offset angle laser data.

25. The photosensitive component parameter acquisition device according to claim 24, wherein the distance measuring device utilizes laser testing technology and is implemented as a laser distance measuring device.

26. A photosensitive component parameter acquisition device according to claim 25, wherein the distance measuring device comprises a transmitting and receiving device driver, wherein the transmitting and receiving device driver drives the distance measuring device to change the laser emission angle, and tests at least 3 points on the surface of the photosensitive element to obtain the tilt amount of the photosensitive element.

27. The photosensitive component parameter acquisition device according to claim 23 further comprises a driving device, wherein after a performance parameter of one photosensitive component of the photosensitive component carrier is measured, the driving device drives the photosensitive component parameter acquisition device to move to another photosensitive component of the photosensitive component carrier to measure the performance parameter of the other photosensitive component.

28. The photosensitive component parameter acquisition device according to claim 27, wherein the driving device drives the photosensitive component parameter acquisition device to move in a horizontal direction.

Images