Aperture preparation method, aperture, camera module and electronic equipment

Abstract

The invention discloses an aperture preparation method, an aperture, a camera module and electronic equipment. The method comprises the following steps: acquiring an aperture gear, a rotor motion parameter, a guide column position and a blade parameter of the aperture; determining a guide groove path according to at least one of an aperture gear, a rotor motion parameter, a guide column position or a blade parameter; obtaining a preset tilt angle specification; and when the path inclination angle between the guide groove path and the position of the guide column does not meet the preset inclination angle specification, the guide groove path is segmented, at least two sub-arc sections are established, and G3 continuous design is adopted between every two adjacent sub-arc sections. According to the diaphragm guide groove, the path of the blade guide groove is designed in a segmented mode, G3 continuous design is adopted between different sub-arc sections, the dynamic performance of the diaphragm guide groove can be improved, the problems of thrust torque oscillation and blade rotation jamming caused by the fact that the curvature and the curvature radius of the guide groove are discontinuous are solved, and the design effect of the diaphragm is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical equipment, and in particular to an aperture preparation method, an aperture, a camera module and electronic equipment. Background Art

[0002] The aperture is a component on the camera that is used to adjust the size of the lens aperture to control imaging parameters such as depth of field and the amount of light entering. The aperture usually uses multiple blades with a guide column and guide groove design, and the aperture opening and closing control function is achieved by driving the blades to move along the path provided by the guide groove.

[0003] In the prior art, the aperture guide groove is usually composed of multiple curves, and the curves are usually connected in a tangent continuity, that is, G1 continuity. Figure 1 FIG. 1 is a schematic diagram of the structure of an existing aperture guide groove. Figure 1 As shown, in the curve connected by G1 continuous mode, the curvature and curvature radius of the curve are not continuous, which will cause thrust torque oscillation and blade rotation jamming generated by the acceleration part when the guide column and the guide groove are in action, affecting the design effect of the guide groove. Summary of the invention

[0004] The present invention provides an aperture preparation method, an aperture, a camera module and an electronic device to solve the problems of thrust torque oscillation and blade rotation jamming caused by discontinuous curvature and curvature radius of the existing aperture guide groove, and to improve the dynamic performance of the aperture guide groove.

[0005] According to one aspect of the present invention, there is provided a method for preparing an aperture, wherein the aperture comprises a housing, a rotor arranged in the housing, and a plurality of blades annularly distributed on the rotor, wherein a guide post is provided on the rotor, and the method comprises: obtaining an aperture gear position, a rotor motion parameter, a guide post position, and a blade parameter of the aperture; determining a guide groove path according to at least one of the aperture gear position, the rotor motion parameter, the guide post position, or the blade parameter; obtaining a preset tilt angle specification; when the path tilt angle between the guide groove path and the guide post position does not meet the preset tilt angle specification, segmenting the guide groove path to establish at least two sub-arc segments, and adopting a G3 continuous design between two adjacent sub-arc segments.

[0006] Optionally, when the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments, including: obtaining the curvature change rate of the guide groove path between different aperture gears, and the correlation between the aperture gear and the curvature change rate; setting a segmentation point on any path between the gears with relatively large curvature change rates, or setting a segmentation point on any path between the gears with relatively small correlation; determining the G3 curvature based on the arc curvature on both sides of the segmentation point.

[0007] Optionally, when the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and G3 continuous design is adopted between two adjacent sub-arc segments. It also includes: segmenting the guide groove path based on a preset step size, calculating the sub-path inclination angles between different sub-path segments and the guide post position; when the sub-path inclination angle does not meet the preset inclination angle specification, setting a segmentation point on the sub-path segment corresponding to the sub-path inclination angle; and determining the G3 curvature based on the arc curvature on both sides of the segmentation point.

[0008] Optionally, determining the guide groove path according to at least one of the aperture gear, the rotor motion parameter, the guide post position or the blade parameter includes: obtaining a maximum gear, an intermediate gear and a minimum gear among the aperture gears; and determining the guide groove path according to the aperture diameters corresponding to the maximum gear, the intermediate gear and the minimum gear.

[0009] Optionally, obtaining the aperture gear, rotor motion parameters, guide post position and blade parameters of the aperture includes: determining the aperture gear and the aperture diameter corresponding to the aperture gear according to demand data of a camera module; and / or determining the guide post position according to the aperture diameter and a limiting size of the housing; and / or determining the rotor motion parameters according to the aperture rotation thrust, the aperture diameter and the inner arc of the blade.

[0010] Optionally, the obtaining of the preset tilt angle specification includes: obtaining a resistance parameter of the blade rotating along the guide groove path; and determining the preset tilt angle specification according to the resistance parameter.

[0011] Optionally, the aperture preparation method further includes: forming the continuous sub-arc segments of G3 on the housing or the blades to form guide grooves.

[0012] According to another aspect of the present invention, an aperture is provided, which is manufactured and formed based on the above-mentioned aperture manufacturing method, wherein the guide groove of the aperture is provided with at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments.

[0013] Optionally, the guide groove is arranged on the housing or blades of the aperture.

[0014] According to another aspect of the present invention, there is provided a camera module, comprising: the above-mentioned aperture.

[0015] According to another aspect of the present invention, there is provided an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can perform the above-mentioned aperture preparation method.

[0016] The technical solution of the embodiment of the present invention preliminarily calculates the guide groove path by obtaining at least one of the aperture gear, rotor motion parameters, guide post position or blade parameters; when the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments, thereby solving the problems of thrust torque oscillation and blade rotation jamming caused by the discontinuity of the curvature and curvature radius of the existing aperture guide groove, improving the dynamic performance of the aperture guide groove, avoiding the thrust torque oscillation and blade rotation jamming caused by the discontinuity of the curvature and curvature radius of the guide groove, and improving the aperture design effect.

[0017] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of an existing aperture guide groove;

[0020] Figure 2 A flowchart of an aperture preparation method provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of an aperture provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a path inclination angle under an aperture gear provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a path inclination angle under another aperture gear provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a path inclination angle under another aperture gear provided by an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the structure of a G3 continuous guide groove provided in an embodiment of the present invention;

[0026] Figure 8 A flow chart of another aperture preparation method provided by an embodiment of the present invention;

[0027] Fig. 9 A flow chart of another aperture preparation method provided by an embodiment of the present invention;

[0028] Fig.10 A flow chart of another aperture preparation method provided by an embodiment of the present invention;

[0029] Fig.11 A schematic structural diagram of an electronic device for implementing the aperture preparation method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatuses.

[0032] Figure 2 A flowchart of an aperture preparation method provided by an embodiment of the present invention, Figure 3A structural schematic diagram of an aperture is provided for an embodiment of the present invention. This embodiment can be applicable to the design scenarios of aperture blades and aperture guide grooves. The method can be executed by an aperture preparation device. The aperture preparation device can be implemented in the form of hardware and / or software. The aperture preparation device can be configured in an independent electronic device.

[0033] See also Figure 3 As shown, the aperture includes a housing ( Figure 3 The present invention relates to a rotor 101 (not shown), a rotor 101 disposed in a housing, and a plurality of blades 102 annularly distributed on the rotor 101, wherein a guide post 103 is disposed on the rotor 101. In this embodiment, the guide post 103 includes a fixed guide post and a position-limiting guide post. The fixed guide post is used to fix the blade 102 to the rotor 101; the position-limiting guide post moves along the path defined by the guide groove to drive the blade 102 to rotate along the circumferential direction of the fixed guide post.

[0034] See also Figure 2 and Figure 3 As shown, the aperture preparation method of the present application includes the following steps:

[0035] S1: Obtain the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture.

[0036] Among them, the aperture gear can be understood as the gear corresponding to different amounts of light entering. Typically, the aperture gear includes but is not limited to: F4.0, F2.0, F1.8 and F1.48. The larger the aperture gear, the smaller the corresponding aperture diameter (i.e., the light entering aperture). For example, when the aperture gear is F4.0, the corresponding aperture diameter (i.e., the light entering aperture) is equal to 50mm / 4=12.5mm; when the aperture gear is F2.0, the corresponding aperture diameter (i.e., the light entering aperture) is equal to 50mm / 2=25mm; when the aperture gear is F1.8, the corresponding aperture diameter (i.e., the light entering aperture) is equal to 50mm / 1.8=28mm; when the aperture gear is F1.48, the corresponding aperture diameter (i.e., the light entering aperture) is equal to 50mm / 1.48=34mm. In this embodiment, the aperture gear can be established based on the actual aperture demand data (such as the amount of light entering, depth of field, or other custom data).

[0037] The rotor can be understood as a rotatable device connected to the aperture blades, and the rotation of the rotor drives the aperture blades to open and close, thereby changing the size of the aperture. The rotor motion parameters can be understood as parameters that characterize the rotor motion state. Typically, the rotor motion parameters include but are not limited to: rotor speed, rotor rotation time, and rotor rotation angle. In this embodiment, the rotor motion parameters can be established based on the actual aperture demand data (such as the amount of light entering, depth of field, or other custom data) and the aperture structure.

[0038] The guide post position can be understood as providing a fixed point and a position limiting structure during the opening and closing rotation of the blades, which is used to fix the blades and ensure that the blades can stably and reliably complete the opening and closing action. Typically, the guide post position includes but is not limited to: a fixed guide post position and a limiting guide post position. In this embodiment, the guide post position can be established based on the motion trajectory and force conditions of the aperture blades, the focal length and aperture size of the camera lens, the adjustment range and accuracy of the aperture, and the overall structure and internal space layout of the camera module, so that the blades are evenly stressed during the opening and closing process, the movement is smooth, and there is no interference with other components.

[0039] The blade parameters can be understood as parameters that characterize the outer structure of the aperture blades. Typically, the blade parameters include, but are not limited to, blade shape, number of blades, and inner arc length of the blades. In this embodiment, the blade parameters can be established based on the actual aperture demand data (such as the amount of light entering, depth of field, or other custom data), imaging effects, and processing dimensions, etc., to ensure that the opening and closing movement of the blades is stable and smooth while ensuring the imaging effect.

[0040] In some embodiments, after obtaining the aperture position, rotor motion parameters, guide post position and blade parameters, the aperture preparation method of the present application also includes: detecting whether interference occurs between the blades and between the blades and the rotor, and adjusting the guide post position and blade parameters when interference occurs.

[0041] S2: Determine the guide groove path according to at least one of the aperture gear position, the rotor motion parameter, the guide post position or the blade parameter.

[0042] The guide groove path is the movement trajectory of the aperture blades during the opening and closing process.

[0043] Specifically, the design method of the guide groove path includes but is not limited to any of the following: designing the trajectory size (such as arc length and radian) according to the blade shape (usually arc or polygonal) and the number of blades of the aperture blades; designing the trajectory shape of the guide groove (such as circular or arc) according to the aperture gear and rotor motion parameters; and determining the guide groove layout position according to the position of the guide post.

[0044] In some embodiments, determining the guide groove path according to at least one of the aperture gear, rotor motion parameter, guide post position or blade parameter includes: obtaining the maximum gear, the middle gear and the minimum gear in the aperture gear; determining the guide groove path according to the aperture diameter corresponding to the maximum gear, the middle gear and the minimum gear. Exemplarily, taking the aperture gear including F4.0, F2.0, F1.8, F1.48 and F1.0 as an example, the guide groove trajectory can be determined based on the aperture diameters corresponding to F4.0, F1.8 and F1.0 respectively.

[0045] S3: Obtain preset tilt angle specifications.

[0046] The tilt angle may be understood as the path inclination angle formed between the guide groove path and the guide post position at different aperture gears. Figure 4 A schematic diagram of a path inclination angle under an aperture gear provided by an embodiment of the present invention; Figure 5 A schematic diagram of a path inclination angle under another aperture gear provided by an embodiment of the present invention; Figure 6 A schematic diagram of a path inclination angle under another aperture gear provided by an embodiment of the present invention. Figures 4 to 6 As shown, the path inclination angle θ may be the angle formed by the line connecting the fixed guide post and the limiting guide post and the tangent line of the guide groove path.

[0047] The preset tilt angle specification can be understood as the range of path tilt angles that will not cause a stuck phenomenon during the rotation of the blade. For example, the preset tilt angle specification can be designed as: θ min ≤θ≤θ max Among them, θ min Indicates the lower limit of the path inclination angle to ensure the stable and smooth opening and closing movement of the blades; θ max Indicates the upper limit of the path inclination angle to ensure stable and smooth opening and closing movement of the blades.

[0048] Optionally, obtaining the preset tilt angle specification includes: obtaining a resistance parameter of the blade rotating along the guide groove path, and determining the preset tilt angle specification according to the resistance parameter. The resistance parameter is established based on the source of the force that hinders the blade from rotating along the guide groove path. Typically, the resistance parameter includes but is not limited to: the friction coefficient between the guide column and the guide groove. Specifically, a corresponding relationship between the resistance parameter and the preset tilt angle specification can be established based on calibration data. In the design process, the preset tilt angle specification is determined by looking up a table by detecting the friction coefficient between the guide column and the guide groove.

[0049] S4: When the path inclination angle between the guide groove path and the guide column position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is used between two adjacent sub-arc segments.

[0050] Among them, G3 continuity means that the curve or the curve is continuous everywhere and the third-order derivative is continuous, that is, the curvatures of two adjacent sub-arc segments are tangent and continuous. Figure 7 A schematic diagram of the structure of a G3 continuous guide groove provided by an embodiment of the present invention. Figure 7 As shown, the curve designed with G3 continuous has a continuous and smooth curvature change.

[0051] Specifically, in the aperture design process, the aperture gear, rotor motion parameters, guide post position or blade parameters are first designed, and then the guide groove path is preliminarily calculated in combination with at least one of the aperture gear, rotor motion parameters, guide post position or blade parameters. When the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments. By introducing the G3 continuous design in the guide groove path, the problem of thrust torque oscillation and blade rotation jamming caused by the discontinuity of the curvature and curvature radius of the existing aperture guide groove is solved, the dynamic performance of the aperture guide groove is improved, the thrust torque oscillation and blade rotation jamming caused by the discontinuity of the curvature and curvature radius of the guide groove are avoided, and the aperture design effect is improved.

[0052] In some embodiments, obtaining the aperture position, rotor motion parameters, guide post position, and blade parameters of the aperture includes: determining the aperture position and the aperture diameter corresponding to the aperture position according to the demand data of the camera module. The demand data of the camera module includes, but is not limited to: the usage scenario of the camera module, the lens resolution, the lens focal length, and the size of the photosensitive element. Specifically, the light input requirement is calculated according to the demand data of the camera module, and the aperture position is configured according to the aperture diameter corresponding to the light input requirement.

[0053] In some embodiments, obtaining the aperture position of the aperture, the rotor motion parameters, the guide post position and the blade parameters includes: determining the guide post position according to the aperture diameter and the limited size of the housing. Specifically, the blade motion trajectory can be designed in combination with the aperture diameter and the limited size of the housing so that the blade is evenly stressed during the opening and closing process, moves smoothly, and does not interfere with other components.

[0054] In some embodiments, obtaining the aperture position of the aperture, the rotor motion parameters, the guide post position and the blade parameters includes: determining the rotor motion parameters according to the aperture rotation thrust, the aperture diameter and the blade inner arc. The aperture rotation thrust may be a force applied to the blade during the rotor rotation process, which is used to drive the blade to rotate. Specifically, the aperture diameter and the blade inner arc are used to design the motion trajectory of the rotor rotation motion, and the aperture rotation thrust is greater than the resistance on the motion trajectory, and the blade is ensured to perform stable and smooth opening and closing rotation.

[0055] Figure 8 A flowchart of another aperture preparation method provided by an embodiment of the present invention, in Figure 2 Based on the embodiment shown, a specific implementation method of a circular arc segmentation and G3 continuous design method is exemplarily shown. Figure 8 As shown, the aperture preparation method of the present application specifically includes:

[0056] S801: Acquire the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture.

[0057] S802: Determine a guide groove path according to at least one of an aperture position, a rotor motion parameter, a guide post position, or a blade parameter.

[0058] S803: Obtain preset tilt angle specifications.

[0059] S804: Determine whether the path inclination angle between the guide groove path and the guide post position meets the preset inclination angle specification.

[0060] If the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, step S805 is executed; if the path inclination angle between the guide groove path and the guide post position meets the preset inclination angle specification, step S805' is executed.

[0061] S805': Design the guide groove path as a single arc curve.

[0062] S805: Obtain the curvature change rate of the guide groove path between different aperture gears, and the correlation between the aperture gear and the curvature change rate.

[0063] The curvature change rate is used to characterize the degree of curvature change, and the correlation between the curvature change rate and the aperture position is used to characterize the degree of influence of the curvature change. The higher the correlation between the aperture position and the curvature change rate, the greater the influence of the aperture position change on the curvature change.

[0064] S806: Setting a segmentation point on any path between gears with a relatively large curvature change rate, or setting a segmentation point on any path between gears with a relatively small correlation.

[0065] S807: Determine the G3 curvature based on the arc curvatures on both sides of the segmentation point.

[0066] Specifically, see Figures 4 to 6 As shown in FIG. 1 , after the guide groove path is preliminarily designed based on the aperture gear, the path inclination angle θ between the guide groove path and the guide post position under different aperture gears is calculated respectively. If the path inclination angle θ at any position under any aperture gear does not meet the preset inclination angle specification (for example, θ<θ min Or, θ>θ max), the guide groove path is segmented. Exemplarily, taking the design of the guide groove path based on three aperture gears (such as F4.0, F1.8 and F1.0) as an example, the curvature change rate of the curve between F4.0 and F1.8 and the curvature change rate of the curve between F1.8 and F1.0 are calculated respectively. If the curvature change rate of the curve between F4.0 and F1.8 is greater than the curvature change rate of the curve between F1.8 and F1.0, a segmentation point is set at any point on the curve between F4.0 and F1.8, the arc curvatures on both sides of the segmentation point are calculated, and the G3 curvature is designed so that the arc curvatures on both sides of the segmentation point are tangently connected. Alternatively, the correlation between F4.0, F1.8 and F1.0 and the curvature change rate is calculated respectively. If the correlation between F4.0 and the curvature change rate is higher than that between F1.0 and the curvature change rate, a segmentation point is set at any point on the curve between F4.0 and F1.8, the arc curvatures on both sides of the segmentation point are calculated, and the G3 curvature is designed so that the arc curvatures on both sides of the segmentation point are tangently connected. By combining the curvature change rate between different aperture gears or the degree of influence of the gear on the curvature change, the guide groove path is segmented, the position of G3 on the guide groove path is optimized, and the dynamic performance of the aperture guide groove is further improved.

[0067] Fig. 9 A flowchart of another aperture preparation method provided by an embodiment of the present invention, Figure 2 Based on the embodiment shown, another specific implementation method of arc segmentation and G3 continuous design method is exemplarily shown. Fig. 9 As shown, the aperture preparation method of the present application specifically includes:

[0068] S901: Obtaining the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture.

[0069] S902: Determine a guide groove path according to at least one of an aperture position, a rotor motion parameter, a guide post position, or a blade parameter.

[0070] S903: Obtain preset tilt angle specifications.

[0071] S904: Determine whether the path inclination angle between the guide groove path and the guide column position meets the preset inclination angle specification

[0072] If the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, step S905 is executed; if the path inclination angle between the guide groove path and the guide post position meets the preset inclination angle specification, step S905' is executed.

[0073] S905': Design the guide groove path as a single arc curve.

[0074] S905: Segment the guide groove path based on a preset step length, and calculate the sub-path inclination angles between different sub-path segments and the guide post positions.

[0075] The preset step size may be established based on the arc length and curvature of the guide groove, or based on user-defined data, without limiting its specific value.

[0076] S906: When the inclination angle of the sub-path does not meet the preset inclination angle specification, a segmentation point is set in the sub-path segment corresponding to the inclination angle of the sub-path.

[0077] S907: Determine the G3 curvature based on the arc curvatures on both sides of the segmentation point.

[0078] Specifically, see Figures 4 to 6 As shown in FIG. 1 , after the guide groove path is preliminarily designed based on the aperture gear, the path inclination angle θ between the guide groove path and the guide post position under different aperture gears is calculated respectively. If the path inclination angle θ at any position under any aperture gear does not meet the preset inclination angle specification (for example, θ<θ min Or, θ>θ max ), the guide groove path is segmented based on the preset step length, and the sub-path inclination angles between different sub-path segments and the guide column position are calculated respectively. If the sub-path inclination angle does not meet the preset inclination angle specification, a segmentation point is set in the sub-path segment corresponding to the sub-path inclination angle, the arc curvature on both sides of the segmentation point is calculated, and the G3 curvature is designed so that the arc curvatures on both sides of the segmentation point are tangently connected. By calculating the path inclination angle on the guide groove path in segments, multiple segmentation points can be added to the guide groove path, which can improve the G3 continuous design accuracy and further improve the dynamic performance of the aperture guide groove.

[0079] Fig.10 A flowchart of another aperture preparation method provided by an embodiment of the present invention, Figure 2 Based on the embodiment shown, a specific implementation of the guide groove arrangement position is exemplarily shown. Fig.10 As shown, the aperture preparation method of the present application specifically includes the following steps:

[0080] S101: Acquire the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture.

[0081] S102: Determine a guide groove path according to at least one of an aperture position, a rotor motion parameter, a guide post position, or a blade parameter.

[0082] S103: Obtaining preset tilt angle specifications.

[0083] S104: When the path inclination angle between the guide groove path and the guide column position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is used between two adjacent sub-arc segments.

[0084] S105: forming continuous sub-arc segments of G3 on the housing or the blade to form a guide groove.

[0085] Specifically, referring to the above embodiment, after obtaining the G3 continuous guide groove path, the G3 continuous guide groove path can be set on the outer shell or the blade to form a guide groove, which is used to provide a travel space for the blade rotation movement, expand the use scenario of the G3 continuous guide groove path, and improve the flexibility of the aperture design.

[0086] Based on the same inventive concept as any of the above embodiments, an embodiment of the present invention further provides an aperture, which is prepared and formed based on the above aperture preparation method. The guide groove of the aperture is provided with at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments.

[0087] Optionally, the G3 continuous guide groove of the present application may be provided on the outer shell or blades of the aperture.

[0088] Based on the same inventive concept as any of the above embodiments, an embodiment of the present invention further provides a camera module, comprising: the above aperture, wherein the guide groove of the aperture is provided with at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments.

[0089] In this embodiment, the camera module includes but is not limited to: a mobile phone camera module, a vehicle camera module, a smart home appliance camera module, a still camera module, and a surveillance camera camera module.

[0090] Based on the same inventive concept as any of the above embodiments, an embodiment of the present invention also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the aperture preparation method provided in any of the above embodiments.

[0091] Fig.11A schematic diagram of the structure of an electronic device for implementing the aperture preparation method of an embodiment of the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0092] like Fig.11 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0093] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0094] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the aperture preparation method described above.

[0095] In some embodiments, the aperture preparation method described above may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the aperture preparation method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the aperture preparation method described above in any other appropriate manner (e.g., by means of firmware).

[0096] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0097] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0098] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0099] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0100] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0101] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0102] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0103] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing an aperture, wherein the aperture comprises a housing, a rotor disposed in the housing, and a plurality of blades annularly distributed on the rotor, wherein a guide column is disposed on the rotor, wherein: The method comprises: Obtaining the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture; Determine the guide groove path according to at least one of the aperture gear position, the rotor motion parameter, the guide post position or the blade parameter; Get the preset tilt angle specification; When the path inclination angle between the guide groove path and the guide column position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments.

2. The aperture preparation method according to claim 1, characterized in that: When the path inclination angle between the guide groove path and the guide column position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments, including: Acquire the curvature change rate of the guide groove path between different aperture gears, and the correlation between the aperture gear and the curvature change rate; A segmentation point is set on any path between the gears with a relatively large curvature change rate, or a segmentation point is set on any path between the gears with a relatively small correlation degree; The G3 curvature is determined based on the arc curvatures on both sides of the segmentation point.

3. The aperture preparation method according to claim 1, characterized in that: When the path inclination angle between the guide groove path and the guide post position does not meet the preset inclination angle specification, the guide groove path is segmented to establish at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments, further comprising: Segmenting the guide groove path based on a preset step length, and calculating the sub-path inclination angles between different sub-path segments and the guide post position; When the inclination angle of the sub-path does not meet the preset inclination angle specification, setting a segmentation point on the sub-path segment corresponding to the inclination angle of the sub-path; The G3 curvature is determined based on the arc curvatures on both sides of the segmentation point.

4. The aperture preparation method according to claim 1, characterized in that: The determining of the guide groove path according to at least one of the aperture gear position, the rotor motion parameter, the guide post position or the blade parameter comprises: Obtaining the maximum gear, the middle gear and the minimum gear in the aperture gear; The guide groove path is determined according to the aperture diameters corresponding to the maximum gear position, the middle gear position and the minimum gear position.

5. The aperture preparation method according to claim 1, characterized in that: The step of obtaining the aperture position, rotor motion parameters, guide post position and blade parameters of the aperture includes: Determine the aperture position and the aperture diameter corresponding to the aperture position according to the required data of the camera module; and / or, Determining the position of the guide post according to the aperture diameter and the limiting dimensions of the housing; and / or, The rotor motion parameters are determined according to the aperture rotation thrust, the aperture diameter and the blade inner arc.

6. The aperture preparation method according to claim 1, characterized in that: The obtaining of the preset tilt angle specification includes: Obtaining resistance parameters of the blade rotating along the guide groove path; The preset tilt angle specification is determined according to the resistance parameter.

7. The aperture preparation method according to any one of claims 1 to 6, characterized in that: Also includes: The continuous sub-arc segments of G3 are formed on the housing or the blade to form guide grooves.

8. An aperture, characterized in that: The aperture is prepared and molded based on the aperture preparation method according to any one of claims 1 to 7, wherein the guide groove of the aperture is provided with at least two sub-arc segments, and a G3 continuous design is adopted between two adjacent sub-arc segments.

9. A camera module, characterized in that: include: The aperture as claimed in claim 8.

10. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can perform the aperture preparation method according to any one of claims 1 to 7.

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