Driver, imaging device, and electronic device

Abstract

The present invention discloses a driver, an imaging device and an electronic device. The driver is used to drive an imaging lens. The driver includes a frame portion, a receiving portion, a driving portion, an optical identification structure and a liquid. The frame portion is used to accommodate the imaging lens. The receiving portion is disposed on the frame portion, used to receive the imaging lens and provide a degree of freedom for the imaging lens to move relative to the frame portion. The driving portion is used to drive the imaging lens to move. The optical identification structure is disposed on a part of the frame portion, the receiving portion or the driving portion. The optical identification structure includes a plurality of optical identification units. The optical identification units are arranged adjacent to each other, and each optical identification unit includes a first optical identification surface. The liquid is disposed in the optical identification structure. The liquid is in physical contact with the imaging lens, the frame portion, the receiving portion or the driving portion adjacent to the optical identification structure. The imaging device has the above-mentioned driver, and the electronic device has the above-mentioned imaging device.

Description

Technical Field

[0001] The present invention relates to a driver, an imaging device, and an electronic device, and particularly to a driver and an imaging device applicable to an electronic device. Background Art

[0002] As semiconductor process technology becomes more sophisticated, the performance of electronic photosensitive elements can accommodate more pixels. Therefore, optical lenses with high imaging quality have become an essential part. In addition, a driver is needed to drive the optical lens to achieve effects such as focusing and optical anti-shake. With the rapid development of technology, the application range of electronic devices equipped with drivers and optical lenses is more extensive, and the requirements for drivers are also more diverse.

[0003] However, the driver is composed of multiple components. Most of these components are compactly assembled together due to requirements such as space saving, and the dispensing process is often used to join adjacent components in the driver. This will result in a significant reduction in the allowable error to a very small range in the dispensing process, thereby greatly increasing the difficulty of the dispensing process. Therefore, how to improve the structure of the driver for precise dispensing has become an important issue in the current optical field. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention discloses a driver, an imaging device, and an electronic device, which helps to be detected by an optical identification system in the dispensing process and timely feedback the current dispensing situation, so as to obtain a driver with well-adhered assembled components.

[0005] The present invention provides a driver for driving an imaging lens. The driver includes a frame part, a receiving part, a driving part, an optical identification structure, and a liquid. The frame part is used to accommodate the imaging lens. The receiving part is disposed on the frame part. The receiving part is used to receive the imaging lens and provide at least one degree of freedom for the imaging lens to move relative to the frame part. The driving part is used to drive the imaging lens to move along the direction of the at least one degree of freedom. The optical identification structure is disposed on a part of one of the frame part, the receiving part, and the driving part, and the optical identification structure includes a plurality of optical identification units. The plurality of optical identification units are arranged adjacent to each other. Each optical identification unit includes a first optical identification surface. The liquid is disposed on the optical identification structure, and the liquid is in physical contact with one of the imaging lens, the frame part, the receiving part, and the driving part adjacent to the optical identification structure. The area of each first optical identification surface is A, and the distance between the centers of the patterns of two adjacent ones of the plurality of first optical identification surfaces is D, which satisfies the following conditions:

[0006] 0.001 [square millimeter] ≤ A ≤ 0.5 [square millimeter]; and

[0007] 0.03 [mm] ≤ D ≤ 1.0 [mm].

[0008] The present invention provides a driver for driving an imaging lens. The driver includes a frame portion, a receiving portion, a driving portion, an optical recognition structure, and a liquid. The frame portion is used to accommodate the imaging lens. The receiving portion is disposed on the frame portion, and the receiving portion is used to receive the imaging lens and provide at least one degree of freedom for the imaging lens to move relative to the frame portion. The driving portion is used to drive the imaging lens to move along the direction of the at least one degree of freedom. The optical recognition structure is used to be disposed on the imaging lens, and the optical recognition structure faces at least a part of one of the frame portion, the receiving portion, and the driving portion, and the optical recognition structure includes a plurality of optical recognition units. The plurality of optical recognition units are arranged adjacent to each other. Each optical recognition unit includes a first optical recognition surface. The liquid is disposed in the optical recognition structure, and the liquid is in physical contact with one of the frame portion, the receiving portion, and the driving portion adjacent to the optical recognition structure. The area of each first optical recognition surface is A, and the distance between the centers of the patterns of two adjacent ones of the plurality of first optical recognition surfaces is D, which satisfies the following conditions:

[0009] 0.001 [mm²] ≤ A ≤ 0.5 [mm²]; and

[0010] 0.03 [mm] ≤ D ≤ 1.0 [mm].

[0011] The present invention provides an image capturing device including the above driver and the imaging lens.

[0012] The present invention provides an electronic device including the above image capturing device and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the imaging lens.

[0013] When A satisfies the above conditions, the first optical recognition surface can have a sufficient area range to facilitate detection by the optical recognition system.

[0014] When D satisfies the above conditions, a sufficient distance range can be provided between two adjacent first optical recognition surfaces to facilitate resolution by the optical recognition system.

[0015] The above description of the content of the present invention and the following description of the embodiments are used to illustrate and explain the principle of the present invention and provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective exploded view of a driver in cooperation with an imaging lens according to a first embodiment of the present invention is shown.

[0017] Figure 2 Shown Figure 1Partial enlarged schematic diagram of the optical identification structure in the PP area of the imaging lens with liquid set.

[0018] Figure 3 Illustrate Figure 2 Partial enlarged schematic diagram of the QQ area of the optical identification structure of the imaging lens.

[0019] Figure 4 Illustrate Figure 1 Stereo exploded schematic diagram of another perspective of the driver with the imaging lens.

[0020] Figure 5 Illustrate Figure 4 Partial enlarged schematic diagram of the RR area of the imaging lens.

[0021] Figure 6 Illustrate Figure 5 Schematic diagram of the optical identification structure of the imaging lens with liquid set.

[0022] Figure 7 Stereo exploded schematic diagram of the driver with the imaging lens according to the second embodiment of the present invention.

[0023] Figure 8 Illustrate Figure 7 Partial enlarged schematic diagram of the SS area of the partial driver.

[0024] Figure 9 Illustrate Figure 7 Stereo schematic diagram of the partial driver.

[0025] Figure 10 Illustrate Figure 9 Partial enlarged schematic diagram of the TT area of the partial driver.

[0026] Figure 11 Illustrate Figure 10 Schematic diagram of the optical identification structure of the partial driver with liquid set.

[0027] Figure 12 Stereo exploded schematic diagram of the driver with the imaging lens according to the third embodiment of the present invention.

[0028] Figure 13 Illustrate Figure 12 Partial enlarged schematic diagram of the UU area of the partial driver.

[0029] Figure 14 Illustrate Figure 13 Schematic diagram of the optical identification structure of the partial driver with liquid set.

[0030] Figure 15 Illustrate Figure 13Schematic diagram of the engagement of the optical identification structure of a part of the driver after setting the liquid with the driver of other parts.

[0031] Figure 16 Illustrate Figure 12 Front view schematic diagram of the imaging lens.

[0032] Figure 17 Illustrate Figure 12 Side view schematic diagram of the imaging lens.

[0033] Figure 18 Illustrate Figure 12 Rear view schematic diagram of the imaging lens.

[0034] Figure 19 Illustrate Figure 18 Partial enlarged schematic diagram of the optical identification structure of the imaging lens in the VV area after setting the liquid.

[0035] Figure 20 Illustrate Figure 12 Three-dimensional schematic diagram of the optical identification structure of the imaging lens.

[0036] Figure 21 Three-dimensional schematic diagram of an imaging device according to the fourth embodiment of the present invention.

[0037] Figure 22 Three-dimensional schematic diagram of an electronic device according to the fifth embodiment of the present invention.

[0038] Figure 23 Illustrate Figure 22 Three-dimensional schematic diagram of the other side of the electronic device.

[0039] Figure 24 Illustrate Figure 22 System block diagram of the electronic device.

[0040] Figure 25 Illustrate Figure 22 Image schematic diagram captured by the electronic device with an equivalent focal length between 11 mm and 14 mm.

[0041] Figure 26 Illustrate Figure 22 Image schematic diagram captured by the electronic device with an equivalent focal length between 22 mm and 30 mm.

[0042] Figure 27 Illustrate Figure 22 Image schematic diagram captured by the electronic device with an equivalent focal length between 100 mm and 150 mm.

[0043] Figure 28 Illustrate Figure 22Schematic diagram of an image captured by an electronic device with an equivalent focal length between 400 mm and 600 mm.

[0044] Figure 29 Schematic diagram showing parameter θ in an embodiment according to the present invention.

[0045] Figure 30 Three-dimensional schematic diagram showing a three-dimensional optical recognition structure in another embodiment according to the present invention.

[0046] Figure 31 Three-dimensional schematic diagram showing a three-dimensional optical recognition structure in another embodiment according to the present invention.

[0047] Figure 32 Three-dimensional schematic diagram showing a three-dimensional optical recognition structure in another embodiment according to the present invention.

[0048] Figure 33 Schematic diagram showing a planar optical recognition structure in another embodiment according to the present invention.

[0049] Figure 34 Schematic diagram showing a planar optical recognition structure in another embodiment according to the present invention.

[0050] Figure 35 Schematic diagram showing a planar optical recognition structure in another embodiment according to the present invention.

[0051]

Symbol description

[0052] 1, 2, 3... drivers;

[0053] 11, 21, 31... frame parts;

[0054] 11a, 31a... receiving part installation positions;

[0055] 211, 311... upper frames;

[0056] 212... gaskets;

[0057] 213, 313... lower frames;

[0058] 12, 22, 32... receiving parts;

[0059] 22a... receiving part installation position;

[0060] 121, 321... supporting elements;

[0061] 222... upper spring pieces;

[0062] 223... lower spring pieces;

[0063] 224... carriers;

[0064] 13, 23, 33... driving parts;

[0065] 131, 231, 331... coils;

[0066] 132, 232, 332... magnetic elements;

[0067] 14a, 14b, 24a, 34a, 34b, 34c, TOIS, TOIS1, TOIS2, TOIS3, TOIS4, TOIS5, TOIS6... optical identification structures;

[0068] 140a, 140b, 240a, 340a, 340b, 340c, TOIS1_0, TOIS2_0, TOIS3_0, TOIS4_0, TOIS5_0, TOIS6_0... optical identification units;

[0069] 141a, 141b, 241a, 341a, 341b, 341c, TOIS1_1, TOIS2_1, TOIS3_1, TOIS4_1, TOIS5_1, TOIS6_1... first optical identification surfaces;

[0070] 142a, 142b, 242a, 342a, 342b, 342c, TOIS1_2, TOIS2_2, TOIS3_2, TOIS4_2, TOIS5_2, TOIS6_2... second optical identification surfaces;

[0071] 143b, 243a, 343a, 343b, 343c, TOIS1_3, TOIS4_3, TOIS5_3, TOIS6_3... third optical identification surfaces;

[0072] 244a, 344a, 344b, 344c, TOIS4_4, TOIS5_4, TOIS6_4... fourth optical identification surfaces;

[0073] 345b, TOIS5_5... fifth optical identification surfaces;

[0074] 346b, TOIS5_6... sixth optical identification surfaces;

[0075] 347b, TOIS5_7... seventh optical identification surfaces;

[0076] 348b, TOIS5_8... eighth optical identification surfaces;

[0077] 349b... ninth optical identification surfaces;

[0078] 3410b... tenth optical identification surfaces;

[0079] 3411b…The eleventh optical recognition surface;

[0080] 3412b…The twelfth optical recognition surface;

[0081] 15a, 15b, 25a, 35a, 35b, 35c…Liquids;

[0082] 10, 20, 30…Imaging lenses;

[0083] 10a, 10b, 30c…Drive unit mounting positions;

[0084] 30b…Receiving unit mounting position;

[0085] 101, 201, 301…Optical axes;

[0086] 102, 202, 302…Optical elements;

[0087] 103, 203, 303…Lens barrels;

[0088] 204, 304…Imaging surfaces;

[0089] 4, 5a, 5b, 5c, 5d, 5e, 5f, 5g…Image pickup devices;

[0090] 43, IS…Electronic photosensitive elements;

[0091] 44…Image stabilization module;

[0092] 5…Electronic device;

[0093] 5h…Indicator light;

[0094] 52…Flashlight module;

[0095] 53…Focus assist module;

[0096] 54…Image signal processor;

[0097] 55…User interface;

[0098] 551…Shooting button;

[0099] 552…Image playback button;

[0100] 553…Image pickup device switching button;

[0101] 554…Integrated menu button;

[0102] 56…Image software processor;

[0103] 57, CB…Circuit boards;

[0104] 571…Connector;

[0105] 58. EC... Electronic component;

[0106] 581... Signal emission module;

[0107] 582... Memory;

[0108] 583... Random access memory;

[0109] 584... Gyroscope;

[0110] 585... Position locator;

[0111] 59... Single-chip system;

[0112] 9... Optical identification system;

[0113] DA... Assembly direction;

[0114] DCF... Circumferential direction;

[0115] DOB... Observation direction;

[0116] D1... First direction;

[0117] D2... Second direction;

[0118] FT... Filter;

[0119] LB2... Second lens barrel;

[0120] OBJ... Object;

[0121] OFE... Optical axis turning element;

[0122] PH... Positioning hole;

[0123] PR... Positioning protrusion;

[0124] A, Aap... Area of the first optical identification surface;

[0125] A2... Area of the second optical identification surface;

[0126] A3... Area of the third optical identification surface;

[0127] A4... Area of the fourth optical identification surface;

[0128] A5... Area of the fifth optical identification surface;

[0129] A6... Area of the sixth optical identification surface;

[0130] A7... Area of the seventh optical identification surface;

[0131] A8... Area of the eighth optical identification surface;

[0132] A9… Area of the ninth optical recognition surface;

[0133] A10… Area of the tenth optical recognition surface;

[0134] A11… Area of the eleventh optical recognition surface;

[0135] A12… Area of the twelfth optical recognition surface;

[0136] D, Dap… Spacing distance between the respective graphic centers of two adjacent ones in the first optical recognition surface;

[0137] ΔH… Height difference between the first optical recognition surface and the second optical recognition surface in each optical recognition unit in a direction perpendicular to the first optical recognition surface;

[0138] θ… Angle between the observation direction and the optical recognition structure;

[0139] Φ… Intersection angle between the first optical recognition surface and the second optical recognition surface in each optical recognition unit. Detailed implementation manners

[0140] The following details the detailed features and advantages of the present invention in the implementation manners. The content is sufficient for any person skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. And according to the content disclosed in this specification, the scope of the patent application and the drawings, any person skilled in the relevant art can easily understand the relevant objectives and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention in any way.

[0141] The present invention provides a driver for driving an imaging lens. The driver includes a frame part, a receiving part, and a driving part. The frame part is used to accommodate the imaging lens. The receiving part is disposed on the frame part. The receiving part is used to receive the imaging lens and is used to provide at least one degree of freedom for the imaging lens to move relative to the frame part. The driving part is used to drive the imaging lens to move along the direction of the at least one degree of freedom.

[0142] Specifically, the receiving part may include a spring piece, a suspension wire, a ball, a guide rod, a slider, etc., but the present invention is not limited thereto. Please refer to Figure 1 , which is a schematic diagram showing that the receiving part 12 of the driver 1 according to the first embodiment of the present invention includes a support element 121 in the shape of a ball. Please refer to Figure 7 , which is a schematic diagram showing that the receiving part 22 of the driver 2 according to the second embodiment of the present invention includes an upper spring piece 222 and a lower spring piece 223 in the shape of a spring piece. Please refer to Figure 12 , which is a schematic diagram showing that the receiving part 32 of the driver 3 according to the third embodiment of the present invention includes a support element 321 in the shape of a spring piece.

[0143] The imaging lens may have an optical axis. The imaging lens may include a plurality of optical elements and a lens barrel. The plurality of optical elements are arranged along the optical axis. The lens barrel surrounds the optical axis, and at least one of the plurality of optical elements is received in the lens barrel. The plurality of optical elements may at least include a lens, a mirror, an optical axis turning element, a light shielding element, a space spacer element, a fixing member, etc., but the present invention is not limited thereto.

[0144] The driver further includes an optical identification structure. The optical identification structure includes a plurality of optical identification units. The plurality of optical identification units are arranged adjacent to each other. In one embodiment, the optical identification structure may be disposed on a part of one of the frame portion, the receiving portion, and the driving portion. Please refer to Figure 8 , which shows the optical identification structure 24a disposed on the carrier 224 of the receiving portion 22 of the driver 2 according to the second embodiment of the present invention, and the optical identification structure 24a faces the upper spring piece 222 of the receiving portion 22 (shown in Figure 7 ). Please refer to Figure 13 , which shows the optical identification structure 34a disposed on the lower frame 313 of the frame portion 31 of the driver 3 according to the third embodiment of the present invention, and the optical identification structure 34a faces the support element 321 of the receiving portion 32 (shown in Figure 12 ). In another embodiment, the optical identification structure may be disposed on the imaging lens, and the optical identification structure faces a part of at least one of the frame portion, the receiving portion, and the driving portion. Please refer to Figure 1 , which shows the optical identification structure 14a disposed on the lens barrel 103 of the imaging lens 10 according to the first embodiment of the present invention, and the optical identification structure 14a faces the magnetic element 132 of one of the driving portions 13.

[0145] The driver further includes a liquid. The liquid is disposed on the optical identification structure and can face another adjacent element. The liquid may be in a solid state or a non-solid state under normal conditions. The liquid in a solid state may be an adhesive; thereby, it is beneficial to provide a bonding force for fixing adjacent elements after curing. Or, the liquid in a solid state may also be a liquid plastic dissolved by an organic solvent; thereby, by coating the organic solvent, the adjacent plastic material surfaces of the adjacent elements can be melted, and after the melted liquid plastic is cured, it is integrated with the adjacent elements. Among them, the organic solvent may be, for example but not limited to, acetone, methyl ethyl ketone, chloroform. Or, the liquid in a non-solid state may be a lubricant and a damper; thereby, the liquid can be used to extend the life of the driver and reduce the vibration generated when the lens moves, further improving the stability of the driver.

[0146] In the aspect where the optical identification structure is disposed on a part of one of the frame portion, the receiving portion, and the driving portion, the liquid is in physical contact with one of the imaging lens, the frame portion, the receiving portion, and the driving portion adjacent to the optical identification structure. Please refer to Figure 11, which shows the liquid 25a disposed on the optical identification structure 24a on the carrier 224 of the receiving portion 22 of the second embodiment of the present invention, and the liquid 25a is in physical contact with the upper spring piece 222 to engage the upper spring piece 222 of the receiving portion 22 and the carrier 224 with each other. In the aspect where the optical identification structure is disposed on the imaging lens, the liquid is in physical contact with one of the frame portion, the receiving portion, and the driving portion adjacent to the optical identification structure. Please refer to Figure 1 and Figure 2 , which shows the liquid 15a disposed on the optical identification structure 14a on the lens barrel 103 of the imaging lens 10 of the first embodiment of the present invention, and the liquid 15a is in physical contact with the magnetic element 132 to engage the magnetic element 132 of the driving portion 13 and the lens barrel 103 of the imaging lens 10 with each other.

[0147] Each optical identification unit of the optical identification structure includes a first optical identification surface. In each optical identification unit, the first optical identification surface may have a different glossiness from other parts of the optical identification unit in a direction. Thereby, it is beneficial to mark the position to be dispensed with glue and can timely feedback the current glue dispensing condition. Specifically, the aforementioned liquid can be used for glue dispensing, and when the liquid contacts the first optical identification surface, the glossiness of the first optical identification surface will change. Therefore, in the glue dispensing process, the information on the surface of the optical identification structure can be obtained by the optical identification method. This information can be the actual position of the liquid, the filling amount, the flow direction, etc., so as to be able to timely compare the current glue dispensing condition with the target glue dispensing result and timely correct it. In this way, defects such as incomplete glue dispensing or glue overflow can be avoided, further improving the qualified rate and accuracy of the glue dispensing process to increase the speed of the subsequent assembly process and reduce the pollution of the liquid to non-glue-dispensing areas. Among them, the liquid can change the glossiness of the first optical identification surface by covering, corrosion, changing the surface microstructure or dyeing, etc., but the present invention is not limited thereto.

[0148] The area of each first optical identification surface is A, which satisfies the following conditions: 0.001 [square millimeters] ≤ A ≤ 0.5 [square millimeters]. Thereby, the first optical identification surface can have a sufficient area range to facilitate being detected by the optical identification system. Among them, the following conditions can also be satisfied: 0.0015 [square millimeters] ≤ A ≤ 0.1 [square millimeters]. Among them, the following conditions can also be satisfied: 0.002 [square millimeters] ≤ A ≤ 0.042 [square millimeters]. Please refer to Figure 2 , which shows the schematic diagram of the parameter A of the first embodiment of the present invention.

[0149] The distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which satisfies the following condition: 0.03 [mm] ≤ D ≤ 1.0 [mm]. Thereby, a sufficient distance range can be provided between two adjacent first optical identification surfaces to facilitate resolution by the optical identification system. Among them, the graphic center of the first optical identification surface refers to the geometric center of the first optical identification surface range. Please refer to Figure 2 , which is a schematic diagram showing the parameter D of the first embodiment of the present invention.

[0150] The area of each first optical identification surface is A, and the distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which can satisfy the following condition: 0.05 ≤ √(A) / D ≤ 1.5. Thereby, the dimensionless relationship between the area of the first optical identification surface and the distance between the graphic centers of two adjacent first optical identification surfaces can be defined as a recognition factor, and by matching the first optical identification surfaces with appropriate distances and areas, while collecting the information of the dispensing filling amount, the liquid distribution state and the flow direction can be displayed. Among them, the following condition can also be satisfied: 0.1 ≤ √(A) / D ≤ 1.0.

[0151] Each optical identification unit may further include a second optical identification surface, and the first optical identification surface and the second optical identification surface in each optical identification unit are arranged adjacent to each other. The first optical identification surface and the second optical identification surface have different gloss degrees in one direction. Among them, the first optical identification surface and the second optical identification surface can achieve different gloss degrees in one direction through different surface roughnesses, surface microstructures in different directions, height differences, angle differences, etc., but the present invention is not limited thereto.

[0152] The optical recognition structure disclosed by the present invention can be viewed from an observation direction. The included angle between the observation direction and the optical recognition structure is θ, and the glossiness difference ΔG between the first optical recognition surface and the second optical recognition surface in each optical recognition unit in the observation direction satisfies the following conditions: 50° ≤ θ ≤ 90°; and 15 [gloss units] ≤ ΔG ≤ 50 [gloss units]. Thus, the first optical recognition surface and the second optical recognition surface can be distinguished by the optical recognition system through their glossiness difference. The principle is that after the surface is irradiated with light, the glossiness of the surface can be obtained by converting the reflectivity of the light. The higher the glossiness, the easier it is for the light to be reflected by the surface. If θ is 60 degrees, the corresponding measurement range is 0 to 1000 gloss units. For example, if the reflectivities measured for the first optical recognition surface and the second optical recognition surface in the observation direction with θ being 60 degrees are 0.5% and 3% respectively, it can be known that the glossinesses of the first optical recognition surface and the second optical recognition surface are 5 gloss units and 30 gloss units respectively, and the difference between the two is 25 gloss units, meeting the above conditional formula "15 [gloss units] ≤ ΔG ≤ 50 [gloss units]". Among them, θ can also be 85 degrees, and the corresponding measurement range is 0 to 160 gloss units. Please refer to Figure 29 , which is a schematic diagram showing the optical recognition structure TOIS of an embodiment of the present invention observed by the optical recognition system 9 along the observation direction DOB with an included angle of θ.

[0153] The following table shows the experimental data of the optical recognition system for optical recognition surfaces with the same surface structure under different areas (i.e., the above A) and different spacings (i.e., the above D) in the recognition environment of 50° ≤ θ ≤ 90°; and 15 [gloss units] ≤ ΔG ≤ 50 [gloss units]. All the experimental data in the following table can be recognized by the optical recognition system, and the optical recognition surface after dispensing can be further detected by the optical recognition system.

[0154]

[0155]

[0156] The roughness difference ΔR between the first optical recognition surface and the second optical recognition surface in each optical recognition unit in a direction satisfies the following condition: 0.01 [μm] ≤ ΔR ≤ 3.5 [μm]. Thereby, the first optical recognition surface and the second optical recognition surface can have different glossiness due to different roughness, and thus can be distinguished by the optical recognition system. Since in the cutting process, different roughness can be generated in different directions, the roughness measured on the same surface in different directions will be different. The first optical recognition surface and the second optical recognition surface can have different roughness in the same direction of measuring roughness through different cutting directions, and thus generate different glossiness. In the present invention, unless otherwise specified, the roughness refers to the "arithmetic mean roughness Ra".

[0157] The height difference ΔH between the first optical recognition surface and the second optical recognition surface in each optical recognition unit in a direction perpendicular to the first optical recognition surface satisfies the following condition: 0.001 [mm] ≤ ΔH ≤ 0.1 [mm]. Thereby, the flow of the liquid can be further guided, and the liquid can be retained on the lower optical recognition surface to improve the effect of dispensing recognition, and the current filling amount of the liquid can be estimated by the proportion of the optical recognition unit covered by the liquid. Please refer to Figure 3 , which is a schematic diagram showing the parameter ΔH of the first embodiment of the present invention.

[0158] The intersection angle Φ between the first optical recognition surface and the second optical recognition surface in each optical recognition unit satisfies the following condition: 3 [degrees] ≤ Φ ≤ 75 [degrees]. Thereby, the difference in surface glossiness can be generated by changing the angle of the light rays in the reflection observation direction. Please refer to Figure 5 , which is a schematic diagram showing the parameter Φ of the first embodiment of the present invention.

[0159] The frame portion can have a mounting position. The optical recognition structure and the liquid are arranged at the mounting position. A part of one of the imaging lens, the frame portion, the receiving portion and the driving portion adjacent to the optical recognition structure is arranged at the mounting position and faces the optical recognition structure. Thereby, it can be ensured that the part of the imaging lens, the frame portion, the receiving portion and the driving portion arranged at the mounting position can be stably lapped with the optical recognition structure, thereby improving the assembly quality. Please refer to Figure 12 and Figure 13 , which is a schematic diagram showing the receiving portion mounting position 31a on the object side of the lower frame 313 of the frame portion 31 of the third embodiment of the present invention, and the support element 321 of the receiving portion 32 is arranged at the receiving portion mounting position 31a and faces the optical recognition structure 34a.

[0160] In an aspect where the frame part has a mounting position, the frame part may include a positioning protrusion. The positioning protrusion is located at the mounting position. One of the imaging lens, the frame part, the receiving part, and the driving part adjacent to the optical recognition structure has a positioning hole, and the positioning hole corresponds to the positioning protrusion. Thus, when one of the imaging lens, the frame part, the receiving part, and the driving part is engaged with the positioning protrusion through the positioning hole, at least a part of the optical recognition structure will be covered, thereby further improving the assembly quality. In addition, the optical recognition structure may surround the positioning protrusion. Please refer to Figure 12 and Figure 13 which shows the positioning protrusion PR provided on the mounting position 31a of the receiving part of the third embodiment of the present invention, and the support element 321 has a positioning hole PH corresponding to the positioning protrusion PR of the frame part 31.

[0161] The imaging lens may have a mounting position. The optical recognition structure and the liquid are arranged at the mounting position. A part of one of the frame part, the receiving part, and the driving part adjacent to the optical recognition structure is arranged at the mounting position and faces the optical recognition structure. Thus, it can be ensured that the part of one of the frame part, the receiving part, and the driving part arranged at the mounting position can be stably lapped with the optical recognition structure, thereby improving the assembly quality. Please refer to Figure 12 which shows the driving part mounting position 30c of the lens barrel 303 of the imaging lens 30 of the third embodiment of the present invention in a direction perpendicular to the optical axis 301, and the coil 331 of the driving part 33 is arranged at the driving part mounting position 30c and faces the optical recognition structure 34c.

[0162] In an aspect where the imaging lens has a mounting position, the imaging lens may include a positioning protrusion. The positioning protrusion is located at the mounting position. One of the frame part, the receiving part, and the driving part adjacent to the optical recognition structure has a positioning hole, and the positioning hole corresponds to the positioning protrusion. Thus, when one of the frame part, the receiving part, and the driving part is engaged with the positioning protrusion through the positioning hole, at least a part of the optical recognition structure will be covered, thereby further improving the assembly quality. In addition, the optical recognition structure may surround the positioning protrusion. Please refer to Figure 12 which shows the positioning protrusion PR provided on the driving part mounting position 30c of the third embodiment of the present invention, and the coil 331 has a positioning hole PH corresponding to the positioning protrusion PR of the imaging lens 30.

[0163] The driving unit may include a coil and a magnetic element. The coil and the magnetic element are arranged relative to each other in space. In a state where the frame portion has a mounting position, one of the coil and the magnetic element may be arranged at the mounting position and joined to the frame portion through a liquid. The other of the coil and the magnetic element may be arranged on the imaging lens. In a state where the imaging lens has a mounting position, one of the coil and the magnetic element may be arranged at the mounting position and joined to the imaging lens through a liquid. The other of the coil and the magnetic element may be arranged on the frame portion. In the present invention, when current is given to the coil, a force will be generated between the coil and the magnetic element due to the repulsion or attraction between the magnetic fields. This is conducive to driving the imaging lens to move. In addition, the driving unit may include shape memory alloy (SMA) materials, piezoelectric (Piezoelectric) materials, microelectromechanical systems (MEMS) actuators, etc., which drive the imaging lens to move through reversible deformation, but the present invention is not limited to this. Please refer to Figure 4 , a magnetic element 132 is shown disposed on the drive unit mounting position 10 b of the imaging lens 10 according to the first embodiment of the present invention, and the magnetic element 132 is coupled to the lens barrel 103 of the imaging lens 10 through a liquid 15 b.

[0164] The receiving portion may include a supporting element. The supporting element is in physical contact with both the frame portion and the imaging lens. In the case where the frame portion has a mounting position, a portion of the supporting element may be disposed at the mounting position and coupled to the frame portion via a liquid. In the case where the imaging lens has a mounting position, a portion of the supporting element may be disposed at the mounting position and coupled to the imaging lens via a liquid. In this way, the connection between the frame portion and the imaging lens can be ensured. Please refer to Figures 12 to 15 , is a diagram showing a support element 321 provided on the receiving portion mounting position 31a of the frame portion 31 and the receiving portion mounting position 30b of the imaging lens 30 according to the third embodiment of the present invention. The support element 321 is joined to the lower frame 313 of the frame portion 31 through a liquid 35a, and the support element 321 is joined to the image side of the lens barrel 303 of the imaging lens 30 through a liquid 35b.

[0165] The various technical features of the driver of the present invention can be configured in combination to achieve corresponding effects.

[0166] According to the above implementation modes, specific embodiments are proposed below and described in detail with reference to the accompanying drawings.

[0167] <First Embodiment>

[0168] Please refer to Figures 1 to 6 ,in Figure 1 FIG. 1 is a perspective exploded diagram of a driver and an imaging lens according to a first embodiment of the present invention. Figure 2Illustrated Figure 1 Partial enlarged schematic diagram of the optical identification structure in the PP area of the imaging lens shown in Figure 1 , Figure 3 Illustrated Figure 2 Partial enlarged schematic diagram of the QQ area of the optical identification structure of the imaging lens shown in Figure 2 , Figure 4 Illustrated Figure 1 Exploded perspective view of another angle of the driver paired with the imaging lens shown in Figure 1 , Figure 5 Illustrated Figure 4 Partial enlarged schematic diagram of the RR area of the imaging lens shown in Figure 4 , and Figure 6 Illustrated Figure 5 Schematic diagram of the optical identification structure of the imaging lens shown in Figure 5 provided with liquid.

[0169] In this embodiment, a driver 1 is used to drive an imaging lens 10. The driver 1 includes a frame portion 11, a receiving portion 12, and two driving portions 13. The imaging lens 10 has an optical axis 101, and the imaging lens 10 includes a plurality of optical elements 102 and a lens barrel 103. The optical elements 102 are arranged along the optical axis 101. The lens barrel 103 surrounds the optical axis 101. The optical elements 102 are all received in the lens barrel 103.

[0170] The frame portion 11 has an accommodation space (not labeled separately) for receiving the lens barrel 103 of the imaging lens 10 into the accommodation space of the frame portion 11 along an assembly direction DA. The receiving portion 12 is disposed on the frame portion 11. Specifically, the receiving portion 12 includes four support elements 121. The support elements 121 are spherical balls. The frame portion 11 has four receiving portion mounting positions 11a corresponding to the spherical shape. One end of the support element 121 of the receiving portion 12 is used to receive the imaging lens 10, and the other end of the support element 121 of the receiving portion 12 is disposed in the receiving portion mounting position 11a to be in physical contact with both the frame portion 11 and the imaging lens 10, and is used to provide the imaging lens 10 with a degree of freedom to move relative to the frame portion 11 along the optical axis 101.

[0171] The driving portions 13 are disposed on opposite sides of the lens barrel 103 of the imaging lens 10 in a direction perpendicular to the optical axis 101 and in a direction perpendicular to the assembly direction DA. Each driving portion 13 includes a coil 131 and a magnetic element 132. The coil 131 and the magnetic element 132 in each driving portion 13 are relatively disposed in space.

[0172] Specifically, the imaging lens 10 has two driving part mounting positions 10a and 10b. The driving part mounting position 10a and the driving part mounting position 10b are arranged on opposite sides of the lens barrel 103 of the imaging lens 10 in the direction perpendicular to the optical axis 101 and the direction perpendicular to the assembling direction DA. The magnetic element 132 is arranged at the driving part mounting position 10a and the driving part mounting position 10b of the imaging lens 10, and the coil 131 is arranged at the position of the frame part 11 corresponding to the magnetic element 132. When current is applied to the coil 131, a force will be generated between the coil 131 and the magnetic element 132 due to the repulsion or attraction between magnetic fields, and the driving part 13 is used to utilize this force to drive the imaging lens 10 to move in the direction of the degree of freedom along the optical axis 101.

[0173] The driver 1 further includes two optical identification structures 14a and 14b. The optical identification structure 14a and the optical identification structure 14b are respectively arranged at the driving part mounting position 10a and the driving part mounting position 10b. The optical identification structure 14a faces the magnetic element 132 of one of the driving parts 13 in the direction perpendicular to the optical axis 101 and the direction perpendicular to the assembling direction DA, and the optical identification structure 14b faces the magnetic element 132 of the other driving part 13 in the assembling direction DA.

[0174] The optical identification structure 14a is a three-dimensional optical identification structure, which includes a plurality of optical identification units 140a. The optical identification structure 14b is a three-dimensional optical identification structure, which includes a plurality of optical identification units 140b.

[0175] Each optical identification unit 140a includes a first optical identification surface 141a and a second optical identification surface 142a. The first optical identification surface 141a and the second optical identification surface 142a are arranged adjacent to each other in the optical axis 101 direction and the assembling direction DA. The optical identification units 140a are arranged adjacent to each other in the optical axis 101 direction and the assembling direction DA, so that the optical identification structure 14a has a grid-like appearance.

[0176] The area of each first optical identification surface 141a is A, which satisfies the following condition: A = 9.0×10E-2 [square millimeters].

[0177] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface 141a is D, which satisfies the following condition: D = 0.6 [millimeters].

[0178] The area of each first optical identification surface 141a is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface 141a is D, which satisfies the following condition: √(A) / D = 0.5.

[0179] The first optical identification surface 141a and the second optical identification surface 142a have different gloss degrees in one direction.

[0180] An included angle between an observation direction and the optical recognition structure 14a is θ, which satisfies the following condition: 50° ≤ θ ≤ 90°. A glossiness difference ΔG between the first optical recognition surface 141a and the second optical recognition surface 142a in each optical recognition unit 140a in the observation direction satisfies the following condition: 15 gloss units ≤ ΔG ≤ 50 gloss units.

[0181] A height difference ΔH between the first optical recognition surface 141a and the second optical recognition surface 142a in each optical recognition unit 140a in a direction perpendicular to the first optical recognition surface 141a satisfies the following condition: ΔH = 0.005 mm.

[0182] The driver 1 further includes a liquid 15a. The liquid 15a is disposed on the optical recognition structure 14a, and the liquid 15a faces the magnetic element 132 of the driving portion 13. The liquid 15a is in physical contact with the magnetic element 132 to engage the magnetic element 132 and the lens barrel 103 of the imaging lens 10 with each other.

[0183] Each optical recognition unit 140b includes a first optical recognition surface 141b, a second optical recognition surface 142b, and a third optical recognition surface 143b. The first optical recognition surface 141b and the second optical recognition surface 142b are arranged adjacent to each other in the connecting line direction of the two driving portions 13, and the third optical recognition surface 143b is arranged adjacent to the first optical recognition surface 141b and the second optical recognition surface 142b in the optical axis 101 direction. The optical recognition units 140b are arranged adjacent to each other in the optical axis 101 direction.

[0184] The area of each first optical recognition surface 141b is A, which satisfies the following condition: A = 8.4×10E-2 square millimeters.

[0185] The area of each second optical recognition surface 142b is A2, which satisfies the following condition: A2 = 8.4×10E-2 square millimeters.

[0186] The area of each third optical recognition surface 143b is A3, which satisfies the following condition: A3 = 1.61×10E-1 square millimeters.

[0187] The interval distance between the graphic centers of two adjacent ones in the first optical recognition surface 141b is D, which satisfies the following condition: D = 0.47 mm.

[0188] The area of each first optical recognition surface 141b is A, and the interval distance between the graphic centers of two adjacent ones in the first optical recognition surface 141b is D, which satisfies the following condition: √(A) / D = 0.617.

[0189] The first optical identification surface 141b, the second optical identification surface 142b, and the third optical identification surface 143b have different gloss levels in a direction.

[0190] An included angle between an observation direction and the optical identification structure 14b is θ, which satisfies the following condition: 50° ≤ θ ≤ 90°. A gloss difference ΔG between any two of the first optical identification surface 141b, the second optical identification surface 142b, and the third optical identification surface 143b in each optical identification unit 140b in the observation direction satisfies the following condition: 15 gloss units ≤ ΔG ≤ 50 gloss units.

[0191] A height difference ΔH between the first optical identification surface 141b and the third optical identification surface 143b in each optical identification unit 140b in a direction perpendicular to the first optical identification surface 141b satisfies the following condition: ΔH = 0.025 mm.

[0192] An intersection angle Φ between the first optical identification surface 141b and the second optical identification surface 142b in each optical identification unit 140b satisfies the following condition: Φ = 5°.

[0193] The driver 1 further includes a liquid 15b. The liquid 15b is disposed on the optical identification structure 14b. Please refer to Figure 6 , which is a schematic diagram showing the optical identification structure of the imaging lens with the liquid disposed thereon. When the liquid 15b covers all of the third optical identification surface 143b and part of the second optical identification surface 142b, it means that the dosage of the liquid 15b is appropriate. When the liquid 15b only covers part of the third optical identification surface 143b, it means that the dosage of the liquid 15b is insufficient. When the liquid 15b covers all of the first optical identification surface 141b, it means that the dosage of the liquid 15b is excessive. The liquid 15b faces the magnetic element 132 of the driving portion 13. The liquid 15b is in physical contact with the magnetic element 132 to engage the magnetic element 132 and the lens barrel 103 of the imaging lens 10 with each other.

[0194] <Second Embodiment>

[0195] Please refer to Figures 7 to 11 , wherein Figure 7 is a three-dimensional exploded schematic diagram showing a driver cooperating with an imaging lens according to the second embodiment of the present invention, Figure 8 shows Figure 7 a partially enlarged schematic diagram of the SS area of a part of the driver in Figure 9 shows Figure 7 a three-dimensional schematic diagram of a part of the driver in Figure 10 shows Figure 9 a partially enlarged schematic diagram of the TT area of a part of the driver in Figure 11 showsFigure 10 Schematic diagram of the optical identification structure of a part of the driver with a liquid set therein.

[0196] In this embodiment, the driver 2 is used to drive an imaging lens 20. The driver 2 includes a frame portion 21, a receiving portion 22, and a driving portion 23. The imaging lens 20 has an optical axis 201, and the imaging lens 20 includes a plurality of optical elements 202 and a lens barrel 203. The optical elements 202 are arranged along the optical axis 201. The lens barrel 203 surrounds the optical axis 201. The optical elements 202 are all received in the lens barrel 203.

[0197] The frame portion 21 includes an upper frame 211, a gasket 212, and a lower frame 213. The gasket 212 is disposed on the upper frame 211. A receiving space (not labeled separately) is formed between the lower frame 213 and the upper frame 211 for the lens barrel 203 of the imaging lens 20 to be received in the receiving space of the frame portion 21 along the direction of the optical axis 201. The receiving portion 22 includes an upper spring piece 222, two lower spring pieces 223, and a carrier 224. The upper spring piece 222 is disposed on the upper frame 211 of the frame portion 21 and on one side of the carrier 224. The lower spring pieces 223 are disposed on the lower frame 213 of the frame portion 21 and on the other side of the carrier 224. The carrier 224 of the receiving portion 22 is used to receive the imaging lens 20 and is in physical contact with the imaging lens 20. The upper spring piece 222 and the lower spring pieces 223 are spring pieces that can elastically deform in the direction of the optical axis 201 and are used to provide the imaging lens 20 with the freedom to move relative to the frame portion 21 along the optical axis 201.

[0198] Specifically, the carrier 224 of the receiving portion 22 has four receiving portion mounting positions 22a on the object side. The receiving portion 22 includes four positioning protrusions PR. The positioning protrusions PR are located at the receiving portion mounting positions 22a of the carrier 224. The upper spring piece 222 has four positioning holes PH, and the positioning holes PH correspond to the positioning protrusions PR. The upper spring piece 222 passes through the positioning protrusions PR disposed on the receiving portion mounting positions 22a through the positioning holes PH to cover at least a part of the carrier 224.

[0199] The driving portion 23 is disposed around the carrier 224 in a direction perpendicular to the optical axis 201. Each driving portion 23 includes a coil 231 and four magnetic elements 232. The coil 231 and the magnetic elements 232 in each driving portion 23 are relatively disposed in space. Specifically, the coil 231 is disposed around the carrier 224. The four magnetic elements 232 are disposed on the upper frame 211 and are respectively located in the spaces between the coil 231 and the four corners of the upper frame 211. When a current is applied to the coil 231, a force will be generated between the coil 231 and the magnetic elements 232 due to the repulsion or attraction between the magnetic fields, and the driving portion 23 is used to utilize this force to drive the imaging lens 20 to move in the direction of the freedom of the optical axis 201.

[0200] The driver 2 and the imaging lens 20 are paired with an electronic photosensitive element IS, a plurality of electronic components EC, and a circuit board CB on the image side. The electronic photosensitive element IS is disposed on an imaging surface 204 of the imaging lens 20, and is electrically connected to the electronic components EC and the circuit board CB to receive the imaging light information on the imaging surface 204 and transmit the imaging light information to the electronic components EC and the circuit board CB.

[0201] The driver 2 further includes four optical identification structures 24a. The optical identification structures 24a are disposed at the mounting positions 22a of the receiving portions of the carrier 224. The optical identification structures 24a face the upper spring piece 222 of the receiving portion 22 in the direction of the optical axis 201.

[0202] Each optical identification structure 24a is a planar optical identification structure, which includes a plurality of optical identification units 240a.

[0203] Each optical identification unit 240a in each optical identification structure 24a includes a first optical identification surface 241a, a second optical identification surface 242a, a third optical identification surface 243a, and a fourth optical identification surface 244a. The first optical identification surface 241a and the second optical identification surface 242a are arranged adjacent to each other in the circumferential direction DCF around the positioning protrusion PR. The third optical identification surface 243a and the fourth optical identification surface 244a are arranged adjacent to each other in the circumferential direction DCF, and are farther from the positioning protrusion PR than the first optical identification surface 241a and the second optical identification surface 242a. That is to say, in each optical identification unit 240a, the first optical identification surface 241a, the second optical identification surface 242a, the third optical identification surface 243a, and the fourth optical identification surface 244a can be regarded as being arranged in a 2×2 arc matrix. The optical identification units 240a are arranged adjacent to each other in the circumferential direction DCF and in the direction away from the positioning protrusion PR, so that the optical identification structure 24a has a grid-like appearance. In addition, the optical identification structure 24a also extends in the direction of the optical axis 201 and is disposed on a part of the positioning protrusion PR.

[0204] The area of the first optical identification surface 241a that is farthest from the positioning protrusion PR is A, which satisfies the following condition: A = 1.77×10E-2 [square millimeters].

[0205] The distance between the centers of the patterns of two adjacent ones of the first optical identification surface 241a that are farthest from the positioning protrusion PR in the circumferential direction DCF is D, which satisfies the following condition: D = 0.50 [millimeters]. The "two adjacent ones of the first optical identification surface 241a in the circumferential direction DCF" here refers to two adjacent first optical identification surfaces 241a that are substantially equidistant from the geometric center of the positioning protrusion PR.

[0206] The area of the first optical recognition surface 241a that is farthest from the positioning protrusion PR is A, and the distance between the centers of adjacent respective patterns in the circumferential direction DCF on the first optical recognition surface 241a that is farthest from the positioning protrusion PR is D, which satisfies the following condition: √(A) / D = 0.266.

[0207] The first optical recognition surface 241a and the second optical recognition surface 242a have different gloss levels in one direction, the first optical recognition surface 241a and the third optical recognition surface 243a have the same gloss level in one direction, and the second optical recognition surface 242a and the fourth optical recognition surface 244a have the same gloss level in one direction.

[0208] The angle between an observation direction and the optical recognition structure 24a is θ, which satisfies the following condition: 50 [degrees] ≤ θ ≤ 90 [degrees]. The difference in gloss level between the first optical recognition surface 241a and the second optical recognition surface 242a in each optical recognition unit 240a in the observation direction is ΔG, which satisfies the following condition: 15 [gloss units] ≤ ΔG ≤ 50 [gloss units].

[0209] The driver 2 further includes four liquids 25a. The liquids 25a are disposed on the optical recognition structure 24a, and the liquids 25a face the upper leaf spring 222. The liquids 25a are in physical contact with the upper leaf spring 222 to join the upper leaf spring 222 of the receiving portion 22 and the carrier 224 to each other. As Figure 10 and Figure 11 shown, when the upper leaf spring 222 facing the optical recognition structure 24a is joined to the positioning protrusion PR through the positioning hole PH, only a part of the optical recognition structure 24a is covered. In this way, the optical recognition structure 24a that is not covered by the upper leaf spring 222 can be used for optical recognition in subsequent dispensing processes. Thereby, the recognizability of the optical recognition structure 24a after being covered can be further improved to increase the qualified rate of the dispensing process.

[0210] <Third Embodiment>

[0211] Please refer to Figures 12 to 20 where Figure 12 shows a three-dimensional exploded view of a driver with an imaging lens according to the third embodiment of the present invention, Figure 13 shows Figure 12 a partially enlarged view of the UU region of a part of the driver shown in Figure 14 shows Figure 13 a schematic diagram of the optical recognition structure of a part of the driver shown in Figure 15 shows Figure 13 a schematic diagram of the joining of the optical recognition structure of a part of the driver after the liquid is disposed and other parts of the driver, Figure 16 shows Figure 12 a front view schematic diagram of the imaging lens shown inFigure 17 A side view schematic diagram of an imaging lens shown as Figure 12 is shown in Figure 18 A rear view schematic diagram of an imaging lens shown as Figure 12 is shown in Figure 19 A partially enlarged schematic diagram of an optical recognition structure in the VV region of an imaging lens shown as Figure 18 is shown in, and Figure 20 A three-dimensional schematic diagram of an optical recognition structure of an imaging lens shown as Figure 12 is shown in

[0212] In this embodiment, a driver 3 is used to drive an imaging lens 30. The driver 3 includes a frame portion 31, a receiving portion 32, and two driving portions 33. The imaging lens 30 has an optical axis 301, and the imaging lens 30 includes a plurality of optical elements 302, a lens barrel 303, and a second lens barrel LB2. The optical elements 302 are arranged along the optical axis 301 and include an optical axis turning element OFE. The lens barrel 303 surrounds the optical axis 301, and the plurality of optical elements 302 are received in the lens barrel 303. The second lens barrel LB2 is disposed on the object side of the lens barrel 303, and the optical axis turning element OFE is received in the second lens barrel LB2. As Figure 12 shown, the optical axis turning element OFE is, for example, a prism or a mirror. The optical axis 301 extending from the object side of the imaging lens 30 is turned 90 degrees after passing through the optical axis turning element OFE, thereby obtaining a more flexible spatial configuration.

[0213] The frame portion 31 includes an upper frame 311 and a lower frame 313. A receiving space (not labeled separately) is formed between the lower frame 313 and the upper frame 311 for the lens barrel 303 of the imaging lens 30 to be received in the receiving space of the frame portion 31 along the direction of the optical axis 301. The receiving portion 32 includes two supporting elements 321. The supporting elements 321 are disposed on the lower frame 313 of the frame portion 31, and the supporting elements 321 are in physical contact with both the lower frame 313 and the imaging lens 30. The supporting elements 321 of the receiving portion 32 are used to support the imaging lens 30. The supporting elements 321 are spring pieces that can elastically deform in the direction of the optical axis 301 and are used to provide the imaging lens 30 with freedom of movement relative to the frame portion 31 along the optical axis 301.

[0214] Specifically, the lower frame 313 of the frame portion 31 has four receiving portion mounting positions 31a on the object side. The frame portion 31 includes four positioning protrusions PR. The positioning protrusions PR of the frame portion 31 are located at the receiving portion mounting positions 31a of the lower frame 313. The support element 321 has four positioning holes PH, and the positioning holes PH correspond to the positioning protrusions PR of the frame portion 31. The support element 321 passes through the positioning protrusions PR disposed on the receiving portion mounting positions 31a through the positioning holes PH to cover at least a part of the lower frame 313. The imaging lens 30 has four receiving portion mounting positions 30b on the image side. The imaging lens 30 includes four non-cylindrical positioning protrusions PR. The positioning protrusions PR of the imaging lens 30 are located at the receiving portion mounting positions 30b. A part of the support element 321 is disposed at the receiving portion mounting positions 30b.

[0215] The driving portions 33 are disposed on opposite sides of the lens barrel 303 of the imaging lens 30 in a direction perpendicular to the optical axis 301. Each driving portion 33 includes a coil 331 and a magnetic element 332. The coil 331 and the magnetic element 332 in each driving portion 33 are oppositely disposed in space.

[0216] Specifically, the imaging lens 30 has two driving portion mounting positions 30c. The driving portion mounting positions 30c are disposed on opposite sides of the lens barrel 303 of the imaging lens 30 in a direction perpendicular to the optical axis 301. The imaging lens 30 includes two positioning protrusions PR. The positioning protrusions PR of the imaging lens 30 are located at the driving portion mounting positions 30c. The coil 331 has two positioning holes PH, and the positioning holes PH correspond to the positioning protrusions PR of the imaging lens 30. The coil 331 passes through the positioning protrusions PR disposed on the driving portion mounting positions 30c through the positioning holes PH, and the magnetic element 332 is disposed at a position of the upper frame 311 corresponding to the coil 331. When a current is applied to the coil 331, a force is generated between the coil 331 and the magnetic element 332 due to repulsion or attraction between magnetic fields, and the driving portion 33 is used to utilize this force to drive the imaging lens 30 to move in the direction of the degree of freedom of the optical axis 301.

[0217] The driver 3 and the imaging lens 30 are paired with a filter FT, an electronic photosensitive element IS, and a circuit board CB on the image side. The filter FT is made of glass and is disposed between the lower frame 313 and the electronic photosensitive element IS without affecting the focal length of the imaging lens 30. The electronic photosensitive element IS is disposed on an imaging surface 304 of the imaging lens 30 and is electrically connected to the circuit board CB to receive the imaging light information on the imaging surface 304 and transmit the imaging light information to the circuit board CB. Only for the purpose of simplicity of illustration, only Figure 12 is shown in a configuration with a bent optical axis 301, and the remaining drawings of this embodiment still show a straight optical axis 301.

[0218] The driver 3 further includes four optical recognition structures 34a, four optical recognition structures 34b, and two optical recognition structures 34c. The optical recognition structure 34a is disposed at the receiving portion mounting position 31a of the lower frame 313. The optical recognition structure 34a faces the support element 321 of the receiving portion 32 in the direction of the optical axis 301. The optical recognition structure 34b is disposed at the receiving portion mounting position 30b of the imaging lens 30. The optical recognition structure 34b faces the support element 321 of the receiving portion 32 in the direction of the optical axis 301. The optical recognition structure 34c is disposed at the driving portion mounting position 30c of the imaging lens 30. The optical recognition structure 34b faces the coil 331 of the driving portion 33 in a direction perpendicular to the optical axis 301.

[0219] Each optical recognition structure 34a is a planar optical recognition structure, which includes a plurality of optical recognition units 340a. Each optical recognition structure 34b is a planar optical recognition structure, which includes a plurality of optical recognition units 340b. Each optical recognition structure 34c is a three-dimensional optical recognition structure, which includes a plurality of optical recognition units 340c.

[0220] Each optical recognition unit 340a in each optical recognition structure 34a includes a first optical recognition surface 341a, a second optical recognition surface 342a, a third optical recognition surface 343a, and a fourth optical recognition surface 344a. The first optical recognition surface 341a and the second optical recognition surface 342a are arranged adjacent to each other in a vertical direction perpendicular to the optical axis 301. The third optical recognition surface 343a and the fourth optical recognition surface 344a are arranged adjacent to each other in the same vertical direction perpendicular to the optical axis 301, and are arranged adjacent to the first optical recognition surface 341a and the second optical recognition surface 342a in another vertical direction perpendicular to the optical axis 301. That is to say, in each optical recognition unit 340a, the first optical recognition surface 341a, the second optical recognition surface 342a, the third optical recognition surface 343a, and the fourth optical recognition surface 344a can be regarded as a 2×2 matrix arrangement. The optical recognition units 340a are arranged adjacent to each other in two vertical directions perpendicular to the optical axis 301, so that the optical recognition structure 34a has a grid-like appearance.

[0221] The area of the first optical recognition surface 341a that is not disposed at the outer edge of the receiving portion mounting position 31a is A, which satisfies the following condition: A = 5.8×10E-3 [square millimeters].

[0222] The distance between the centers of the patterns of two adjacent ones of the first optical recognition surfaces 341a that are not disposed at the outer edge of the receiving portion mounting position 31a is D, which satisfies the following condition: D = 0.15 [millimeters].

[0223] The area of the first optical recognition surface 341a not disposed on the outer edge of the receiving portion mounting position 31a is A, and the distance between the centers of the patterns of two adjacent ones of the first optical recognition surfaces 341a not disposed on the outer edge of the receiving portion mounting position 31a is D, which satisfies the following condition: √(A) / D = 0.5.

[0224] The first optical recognition surface 341a and the second optical recognition surface 342a have different gloss levels in one direction, the first optical recognition surface 341a and the third optical recognition surface 343a have the same gloss level in one direction, and the second optical recognition surface 342a and the fourth optical recognition surface 344a have the same gloss level in one direction.

[0225] The angle between an observation direction and the optical recognition structure 34a is θ, which satisfies the following condition: 50° ≤ θ ≤ 90°. The gloss difference between the first optical recognition surface 341a and the second optical recognition surface 342a in each optical recognition unit 340a in the observation direction is ΔG, which satisfies the following condition: 15 [gloss units] ≤ ΔG ≤ 50 [gloss units].

[0226] The driver 3 further includes four liquids 35a. The liquids 35a are disposed on the optical recognition structure 34a, and the liquids 35a face the support element 321. The liquids 35a are in physical contact with the support element 321 to join the lower frame 313 of the frame portion 31 and the support element 321 of the receiving portion 32 to each other. As Figure 14 shown, the liquids 35a cover a part of the optical recognition structure 34a. In this way, the filling amount of the liquids 35a can be estimated by recognizing the area of the optical recognition structure 34a not covered by the liquids 35a. In this way, when as Figure 15 shown, after the support element 321 facing the optical recognition structure 34a is joined to the positioning protrusion PR of the frame portion 31 through the positioning hole PH, it is possible to prevent the glue overflow of the liquids 35a covered by the support element 321, which is conducive to the mutual joining of the support element 321 and the lower frame 313 of the frame portion 31 through the liquids 35a.

[0227] Each optical recognition unit 340b in each optical recognition structure 34b includes two first optical recognition surfaces 341b, two second optical recognition surfaces 342b, a third optical recognition surface 343b, a fourth optical recognition surface 344b, a fifth optical recognition surface 345b, a sixth optical recognition surface 346b, a seventh optical recognition surface 347b, an eighth optical recognition surface 348b, a ninth optical recognition surface 349b, a tenth optical recognition surface 3410b, two eleventh optical recognition surfaces 3411b, and two twelfth optical recognition surfaces 3412b. Each optical recognition structure 34b has an elliptical appearance. The first optical recognition surface 341b and the second optical recognition surface 342b are arranged adjacent to each other in the short-axis direction of the ellipse. The third optical recognition surface 343b, the fourth optical recognition surface 344b, the fifth optical recognition surface 345b, and the sixth optical recognition surface 346b are sequentially arranged in an oblique direction away from the positioning protrusion PR on the receiving portion mounting position 30b between the short axis and the long axis of the ellipse. The seventh optical recognition surface 347b, the eighth optical recognition surface 348b, the ninth optical recognition surface 349b, and the tenth optical recognition surface 3410b are sequentially arranged in another oblique direction away from the positioning protrusion PR on the receiving portion mounting position 30b between the short axis and the long axis of the ellipse, and are respectively adjacent to the third optical recognition surface 343b, the fourth optical recognition surface 344b, the fifth optical recognition surface 345b, and the sixth optical recognition surface 346b. The eleventh optical recognition surface 3411b and the twelfth optical recognition surface 3412b are arranged adjacent to each other in the long-axis direction of the ellipse. That is, each optical recognition unit 340b can be regarded as one-fourth of an ellipse. The optical recognition units 340b are arranged adjacent to each other along the circumferential direction DCF around the positioning protrusion PR, so that the optical recognition structure 34b has an elliptical grid-like appearance.

[0228] The area of each first optical recognition surface 341b is A, which satisfies the following condition: A = 7×10E-3 [square millimeters].

[0229] The area of each second optical recognition surface 342b is A2, which satisfies the following condition: A2 = 7×10E-3 [square millimeters].

[0230] The area of each third optical recognition surface 343b is A3, which satisfies the following condition: A3 = 2.2×10E-3 [square millimeters].

[0231] The area of each fourth optical recognition surface 344b is A4, which satisfies the following condition: A4 = 4.1×10E-3 [square millimeters].

[0232] The area of each fifth optical recognition surface 345b is A5, which satisfies the following condition: A5 = 6.1×10E-3 [square millimeters].

[0233] The area of each sixth optical identification surface 346b is A6, which satisfies the following condition: A6 = 8.1×10E-3 [square millimeters].

[0234] The area of each seventh optical identification surface 347b is A7, which satisfies the following condition: A7 = 2.2×10E-3 [square millimeters].

[0235] The area of each eighth optical identification surface 348b is A8, which satisfies the following condition: A8 = 4.1×10E-3 [square millimeters].

[0236] The area of each ninth optical identification surface 349b is A9, which satisfies the following condition: A9 = 6.1×10E-3 [square millimeters].

[0237] The area of each tenth optical identification surface 3410b is A10, which satisfies the following condition: A10 = 8.1×10E-3 [square millimeters].

[0238] The area of each eleventh optical identification surface 3411b is A11, which satisfies the following condition: A11 = 3×10E-3 [square millimeters].

[0239] The area of each twelfth optical identification surface 3412b is A12, which satisfies the following condition: A12 = 3×10E-3 [square millimeters].

[0240] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface 341b is D, which satisfies the following condition: D = 0.1 [millimeters].

[0241] The area of each first optical identification surface 341b is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface 341b is D, which satisfies the following condition: √(A) / D = 0.837.

[0242] The first optical identification surface 341b and the second optical identification surface 342b have different gloss degrees in one direction. The first optical identification surface 341b, the fourth optical identification surface 344b, the sixth optical identification surface 346b, the seventh optical identification surface 347b, the ninth optical identification surface 349b and the twelfth optical identification surface 3412b have the same gloss degree in one direction, and the second optical identification surface 342b, the third optical identification surface 343b, the fifth optical identification surface 345b, the eighth optical identification surface 348b, the tenth optical identification surface 3410b and the eleventh optical identification surface 3411b have the same gloss degree in one direction.

[0243] The included angle between an observation direction and the optical identification structure 34b is θ, which satisfies the following condition: 50° ≤ θ ≤ 90°. The difference in gloss between the first optical identification surface 341b and the second optical identification surface 342b in each optical identification unit 340b in the observation direction is ΔG, which satisfies the following condition: 15 gloss units ≤ ΔG ≤ 50 gloss units.

[0244] The driver 3 further includes at least four liquids 35b. The liquids 35b are disposed in the optical identification structure 34b, and the liquids 35b face the support element 321. The liquids 35b are in physical contact with the support element 321; the liquids 35b can be an adhesive; thereby, the image side of the lens barrel 303 of the imaging lens 30 and the support element 321 of the receiving portion 32 can be joined to each other; the liquids 35b can also be a lubricant or a damper; thereby, the liquids can be used to extend the life of the driver and reduce the vibration generated when the lens moves, further improving the stability of the driver.

[0245] Each optical identification unit 340c in each optical identification structure 34c includes a first optical identification surface 341c, a second optical identification surface 342c, a third optical identification surface 343c, and a fourth optical identification surface 344c. The first optical identification surface 341c and the second optical identification surface 342c are arranged adjacent to each other in a direction perpendicular to the optical axis 301. The third optical identification surface 343c and the fourth optical identification surface 344c are arranged adjacent to each other in a direction perpendicular to the optical axis 301, and are arranged adjacent to the first optical identification surface 341c and the second optical identification surface 342c in the direction of the optical axis 301. That is to say, the first optical identification surface 341c, the second optical identification surface 342c, the third optical identification surface 343c, and the fourth optical identification surface 344c in each optical identification unit 340c can be regarded as a 2×2 matrix arrangement. The optical identification units 340c are arranged adjacent to each other in the direction of the optical axis 301 and in a direction perpendicular to the optical axis 301, such that the optical identification structure 34c has a grid-like appearance.

[0246] The area of each first optical identification surface 341c is A, which satisfies the following condition: A = 4.0×10E-2 square millimeters.

[0247] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface 341c is D, which satisfies the following condition: D = 0.4 millimeters.

[0248] The area of each first optical identification surface 341c is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface 341c is D, which satisfies the following condition: √(A) / D = 0.5.

[0249] The first optical identification surface 341c and the second optical identification surface 342c have different gloss levels in a direction. The first optical identification surface 341c and the third optical identification surface 343c have the same gloss level in a direction, and the second optical identification surface 342c and the fourth optical identification surface 344c have the same gloss level in a direction.

[0250] An observation direction forms an angle θ with the optical identification structure 34c, which satisfies the following condition: 50° ≤ θ ≤ 90°. The gloss difference ΔG between the first optical identification surface 341c and the second optical identification surface 342c in each optical identification unit 340c in the observation direction satisfies the following condition: 15 [gloss units] ≤ ΔG ≤ 50 [gloss units].

[0251] The height difference ΔH between the first optical identification surface 341c and the second optical identification surface 342c in each optical identification unit 340c in a direction perpendicular to the first optical identification surface 341c satisfies the following condition: ΔH = 0.025 [mm]. Moreover, the first optical identification surface 341c and the fourth optical identification surface 344c have the same height in a direction perpendicular to the first optical identification surface 341c, and the second optical identification surface 342c and the third optical identification surface 343c have the same height in a direction perpendicular to the first optical identification surface 341c.

[0252] The driver 3 further includes at least two liquids 35c. The liquids 35c are disposed on the optical identification structure 34c, and the liquids 35c face the coil 331 of the driving part 33 to join the coil 331 and the lens barrel 303 of the imaging lens 30 to each other. During the process of disposing the liquids 35c, the filling amount of the liquids 35c can be estimated by identifying the area of the optical identification structure 34c not covered by the liquids 35c. In addition, since the first optical identification surface 341c and the fourth optical identification surface 344c have the same height in a direction perpendicular to the first optical identification surface 341c, the continuously adjacent first optical identification surface 341c and the fourth optical identification surface 344c form a strip-shaped protrusion, which can be conducive to guiding the flow direction of the liquids 35c.

[0253] The optical identification structure of the present invention is not limited to the above embodiments. Any one of the above optical identification structures can be replaced with another optical identification structure as the case may be, or it can also be replaced with one of the following planar or three-dimensional optical identification structures as the case may be.

[0254] Please refer to Figure 30 which is a three-dimensional schematic diagram showing a three-dimensional optical identification structure in another embodiment according to the present invention. As Figure 30As shown, a three-dimensional optical identification structure TOIS1 includes a plurality of optical identification units TOIS1_0. Each optical identification unit TOIS1_0 includes a first optical identification surface TOIS1_1, a second optical identification surface TOIS1_2, and a third optical identification surface TOIS1_3. The first optical identification surface TOIS1_1 and the second optical identification surface TOIS1_2 are arranged adjacent to each other in a first direction D1. The third optical identification surface TOIS1_3 is arranged adjacent to the first optical identification surface TOIS1_1 and the second optical identification surface TOIS1_2 in a second direction D2, where the second direction D2 is perpendicular to the first direction D1.

[0255] The first optical identification surface TOIS1_1 and the second optical identification surface TOIS1_2 may have the same glossiness and the same roughness in a direction.

[0256] The second optical identification surface TOIS1_2 and the third optical identification surface TOIS1_3 may have different glossiness and the same roughness in a direction.

[0257] The area of each first optical identification surface TOIS1_1 is A, which satisfies the following condition: A = 1.0×10E-2 [square millimeters].

[0258] The area of each third optical identification surface TOIS1_3 is A3, which satisfies the following condition: A3 = 2.0×10E-2 [square millimeters].

[0259] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS1_1 is D, which satisfies the following condition: D = 0.2 [millimeters].

[0260] The area of each first optical identification surface TOIS1_1 is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS1_1 is D, which satisfies the following condition: √(A) / D = 0.5.

[0261] The height difference between the first optical identification surface TOIS1_1 and the third optical identification surface TOIS1_3 in the direction perpendicular to the first optical identification surface TOIS1_1 in each optical identification unit TOIS1_0 is ΔH, which satisfies the following condition: ΔH = 0.072 [millimeters]. And, the first optical identification surface TOIS1_1 and the third optical identification surface TOIS1_3 are parallel to each other.

[0262] The intersection angle between the first optical identification surface TOIS1_1 and the second optical identification surface TOIS1_2 in each optical identification unit TOIS1_0 is Φ, which satisfies the following condition: Φ = 36 [degrees].

[0263] Please refer toFigure 31 , is a three-dimensional schematic diagram showing a three-dimensional optical recognition structure according to another embodiment of the present invention. As Figure 31 shown, a three-dimensional optical recognition structure TOIS2 includes a plurality of optical recognition units TOIS2_0. Each optical recognition unit TOIS2_0 includes a first optical recognition surface TOIS2_1 and a second optical recognition surface TOIS2_2. The first optical recognition surface TOIS2_1 and the second optical recognition surface TOIS2_2 are arranged adjacent to each other in a first direction D1 and a second direction D2, wherein the second direction D2 is perpendicular to the first direction D1.

[0264] The first optical recognition surface TOIS2_1 and the second optical recognition surface TOIS2_2 have different gloss levels in one direction.

[0265] The area of each first optical recognition surface TOIS2_1 is A, which satisfies the following condition: A = 2.5×10E-3 [square millimeters].

[0266] The area of each second optical recognition surface TOIS1_2 is A2, which satisfies the following condition: A2 = 7.5×10E-3 [square millimeters].

[0267] The distance between the centers of the patterns of two adjacent ones of the first optical recognition surfaces TOIS2_1 is D, which satisfies the following condition: D = 0.1 [millimeters].

[0268] The area of each first optical recognition surface TOIS2_1 is A, and the distance between the centers of the patterns of two adjacent ones of the first optical recognition surfaces TOIS2_1 is D, which satisfies the following condition: √(A) / D = 0.5.

[0269] The height difference between the first optical recognition surface TOIS2_1 and the second optical recognition surface TOIS2_2 in the direction perpendicular to the first optical recognition surface TOIS2_1 in each optical recognition unit TOIS2_0 is ΔH, which satisfies the following condition: ΔH = 0.018 [millimeters]. And, the first optical recognition surface TOIS2_1 and the second optical recognition surface TOIS2_2 are parallel to each other, and two adjacent second optical recognition surfaces TOIS2_2 are further connected in the second direction D2.

[0270] Please refer to Figure 32 , is a three-dimensional schematic diagram showing a three-dimensional optical recognition structure according to another embodiment of the present invention. As Figure 32As shown, a three-dimensional optical recognition structure TOIS3 includes a plurality of optical recognition units TOIS3_0. Each optical recognition unit TOIS3_0 includes a first optical recognition surface TOIS3_1 and a second optical recognition surface TOIS3_2. The first optical recognition surface TOIS3_1 and the second optical recognition surface TOIS3_2 are arranged adjacent to each other.

[0271] The first optical recognition surface TOIS3_1 and the second optical recognition surface TOIS3_2 have different glossiness and the same roughness in one direction.

[0272] The area of each first optical recognition surface TOIS3_1 is A, which satisfies the following condition: A = 1.0×10E-2 [square millimeters].

[0273] The distance between the centers of the patterns of two adjacent ones in the first optical recognition surface TOIS3_1 is D, which satisfies the following condition: D = 0.20 [millimeters].

[0274] The area of each first optical recognition surface TOIS3_1 is A, and the distance between the centers of the patterns of two adjacent ones in the first optical recognition surface TOIS3_1 is D, which satisfies the following condition: √(A) / D = 0.5.

[0275] The intersection angle between the first optical recognition surface TOIS3_1 and the second optical recognition surface TOIS3_2 in each optical recognition unit TOIS3_0 is Φ, which satisfies the following condition: Φ = 20 [degrees].

[0276] Please refer to Figure 33 , which shows a schematic diagram of a planar optical recognition structure in another embodiment according to the present invention. As Figure 33As shown in the figure, a planar optical identification structure TOIS4 includes a plurality of optical identification units TOIS4_0. Each optical identification unit TOIS4_0 includes a first optical identification surface TOIS4_1, a second optical identification surface TOIS4_2, a third optical identification surface TOIS4_3, and a fourth optical identification surface TOIS4_4. The first optical identification surface TOIS4_1 and the second optical identification surface TOIS4_2 are arranged adjacent to each other in a first direction D1. The third optical identification surface TOIS4_3 and the fourth optical identification surface TOIS4_4 are arranged adjacent to each other in the first direction D1, and are arranged adjacent to the first optical identification surface TOIS4_1 and the second optical identification surface TOIS4_2 in a second direction D2, where the second direction D2 is perpendicular to the first direction D1. That is to say, in each optical identification unit TOIS4_0, the first optical identification surface TOIS4_1, the second optical identification surface TOIS4_2, the third optical identification surface TOIS4_3, and the fourth optical identification surface TOIS4_4 can be regarded as a 2×2 matrix arrangement. The optical identification units TOIS4_0 are arranged adjacent to each other along the first direction D1 and the second direction D2, so that the optical identification structure TOIS4 has a grid-like appearance.

[0277] The first optical identification surface TOIS4_1 and the second optical identification surface TOIS4_2 have different gloss degrees in a direction, the first optical identification surface TOIS4_1 and the third optical identification surface TOIS4_3 have the same gloss degree in a direction, and the second optical identification surface TOIS4_2 and the fourth optical identification surface TOIS4_4 have the same gloss degree in a direction.

[0278] The area of each first optical identification surface TOIS4_1 is A, which satisfies the following condition: A = 1.21×10E-2 [square millimeters].

[0279] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS4_1 is D, which satisfies the following condition: D = 0.22 [millimeters].

[0280] The area of each first optical identification surface TOIS4_1 is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS4_1 is D, which satisfies the following condition: √(A) / D = 0.5.

[0281] Please refer to Figure 34 , which shows a schematic diagram of a planar optical identification structure in another embodiment according to the present invention. As Figure 34As shown, a planar optical identification structure TOIS5 includes a plurality of optical identification units TOIS5_0. Each optical identification unit TOIS5_0 includes a first optical identification surface TOIS5_1, a second optical identification surface TOIS5_2, a third optical identification surface TOIS5_3, a fourth optical identification surface TOIS5_4, a fifth optical identification surface TOIS5_5, a sixth optical identification surface TOIS5_6, a seventh optical identification surface TOIS5_7, and an eighth optical identification surface TOIS5_8. The first optical identification surface TOIS5_1, the second optical identification surface TOIS5_2, the seventh optical identification surface TOIS5_7, and the eighth optical identification surface TOIS5_8 are arranged adjacent to each other in a first direction D1. The fourth optical identification surface TOIS5_4, the third optical identification surface TOIS5_3, the sixth optical identification surface TOIS5_6, and the fifth optical identification surface TOIS5_5 are arranged adjacent to each other in the first direction D1 and are arranged adjacent to the first optical identification surface TOIS5_1, the second optical identification surface TOIS5_2, the seventh optical identification surface TOIS5_7, and the eighth optical identification surface TOIS5_8 in a second direction D2, where the included angle between the second direction D2 and the first direction D1 is 60 degrees. From Figure 34 it can be seen that the first optical identification surface TOIS5_1, the second optical identification surface TOIS5_2, the third optical identification surface TOIS5_3, the fourth optical identification surface TOIS5_4, the fifth optical identification surface TOIS5_5, the sixth optical identification surface TOIS5_6, the seventh optical identification surface TOIS5_7, and the eighth optical identification surface TOIS5_8 can be regarded as eight triangles forming a trapezoidal appearance. The optical identification units TOIS5_0 are arranged adjacent to each other along the first direction D1 and the second direction D2, so that the optical identification structure TOIS5 has a grid-like appearance. In addition, from Figure 34 it can be seen that the optical identification structure TOIS5 also includes 1 / 2 optical identification units (not otherwise labeled) with an area only half of that of the optical identification unit TOIS5_0 at the side edge, so that the optical identification structure TOIS5 can be as Figure 34 shown, forming a rectangle.

[0282] The first optical identification surface TOIS5_1, the second optical identification surface TOIS5_2, the third optical identification surface TOIS5_3, and the fourth optical identification surface TOIS5_4 have different gloss levels in one direction. The first optical identification surface TOIS5_1 and the fifth optical identification surface TOIS5_5 have the same gloss level in one direction. The second optical identification surface TOIS5_2 and the sixth optical identification surface TOIS5_6 have the same gloss level in one direction. The third optical identification surface TOIS5_3 and the seventh optical identification surface TOIS5_7 have the same gloss level in one direction. Also, the fourth optical identification surface TOIS5_4 and the eighth optical identification surface TOIS5_8 have the same gloss level in one direction.

[0283] The area of each first optical identification surface TOIS5_1 is A, which satisfies the following condition: A = 5.2 × 10E-3 [square millimeters]. Additionally, the area of the 1 / 2 first optical identification surface (not otherwise labeled) in one of the 1 / 2 optical identification units is 2.6 × 10E-3 square millimeters.

[0284] The distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS5_1 is D, which satisfies the following condition: D = 0.22 [millimeters].

[0285] The area of each first optical identification surface TOIS5_1 is A, and the distance between the centers of the patterns of two adjacent ones in the first optical identification surface TOIS5_1 is D, which satisfies the following condition: √(A) / D = 0.328.

[0286] Please refer to Figure 35 , which shows a schematic diagram of a planar optical identification structure in another embodiment according to the present invention. As Figure 35As shown, a planar optical recognition structure TOIS6 includes a plurality of optical recognition units TOIS6_0. Each optical recognition unit TOIS6_0 includes a first optical recognition surface TOIS6_1, a second optical recognition surface TOIS6_2, a third optical recognition surface TOIS6_3, and a fourth optical recognition surface TOIS6_4. The first optical recognition surface TOIS6_1 and the second optical recognition surface TOIS6_2 are arranged adjacent to each other in the circumferential direction DCF. The third optical recognition surface TOIS6_3 and the fourth optical recognition surface TOIS6_4 are arranged adjacent to each other in the circumferential direction DCF and are closer to the center of the circle than the first optical recognition surface TOIS6_1 and the second optical recognition surface TOIS6_2. That is to say, in each optical recognition unit TOIS6_0, the first optical recognition surface TOIS6_1, the second optical recognition surface TOIS6_2, the third optical recognition surface TOIS6_3, and the fourth optical recognition surface TOIS6_4 can be regarded as an arc matrix arrangement of 2×2. The optical recognition units TOIS6_0 are arranged adjacent to each other along the circumferential direction DCF and along the direction away from the center of the circle, so that the optical recognition structure TOIS6 has a grid-like appearance.

[0287] The first optical recognition surface TOIS6_1 and the second optical recognition surface TOIS6_2 have different glossiness in one direction. The first optical recognition surface TOIS6_1 and the third optical recognition surface TOIS6_3 have the same glossiness in one direction, and the second optical recognition surface TOIS6_2 and the fourth optical recognition surface TOIS6_4 have the same glossiness in one direction.

[0288] The area of the first optical recognition surface TOIS6_1 farthest from the center of the circle is A, which satisfies the following condition: A = 3.03×10E-2 [square millimeters].

[0289] The area of the first optical recognition surface TOIS6_1 closest to the center of the circle is Aap, which satisfies the following condition: Aap = 1.64×10E-2 [square millimeters].

[0290] The distance between the centers of adjacent figures in the first optical recognition surface TOIS6_1 farthest from the center of the circle along the circumferential direction DCF is D, which satisfies the following condition: D = 0.406 [millimeters].

[0291] The distance between the centers of the figures of the first optical recognition surface TOIS6_1 farthest from the center of the circle and the first optical recognition surface TOIS6_1 closest to the center of the circle is Dap, which satisfies the following condition: Dap = 0.286 [millimeters].

[0292] The area of the first optical identification surface TOIS6_1 that is farthest from the center of the circle is A, and the distance between the graphic centers of two adjacent ones in the first optical identification surface TOIS6_1 that is farthest from the center of the circle along the circumferential direction DCF is D, which satisfies the following condition: √(A) / D = 0.429.

[0293] <Fourth Embodiment>

[0294] Please refer to Figure 21 , which is a three-dimensional schematic diagram of an imaging device according to the fourth embodiment of the present invention. In this embodiment, the imaging device 4 is a camera module. The imaging device 4 includes the imaging lens 10, the driver 1, the electronic photosensitive element 43, and the image stabilization module 44 of the above first embodiment. The imaging device 4 can also be configured with the imaging lens and the driver of the above other embodiments, and the present invention is not limited thereto. The imaging device 4 uses the imaging lens 10 to converge light to generate an image, cooperates with the driver 1 to perform image focusing, and finally forms an image on the electronic photosensitive element 43 and can output it as image data.

[0295] The driver 1 can have an auto-focus function, and its driving method can use driving systems such as a voice coil motor (VCM), a microelectromechanical system, a piezoelectric system, and a shape memory alloy. The driver 1 can enable the imaging lens 10 to obtain a better imaging position, and can provide clear images for the object at different object distances. In addition, the imaging device 4 is equipped with an electronic photosensitive element 43 (such as a CMOS or a CCD) with good sensitivity and low noise, which is arranged on the imaging surface (not shown) of the imaging lens 10, and can truly present the good imaging quality of the imaging lens 10.

[0296] The image stabilization module 44 is, for example, an accelerometer, a gyroscope, or a Hall effect sensor. The driver 1 can cooperate with the image stabilization module 44 to jointly serve as an optical image stabilization (OIS) device, compensate for the blurred image generated by shaking during shooting by adjusting the changes of the imaging lens 10 in different axial directions, or use the image compensation technology in the image software to provide an electronic image stabilization (EIS) function, further improving the imaging quality in dynamic and low-light scenes.

[0297] <Fifth Embodiment>

[0298] Please refer to Figures 22 to 24 , wherein Figure 22 is a three-dimensional schematic diagram of an electronic device according to the fifth embodiment of the present invention, Figure 23 illustrates Figure 22A perspective view of the other side of the electronic device Figure 24 Illustrate Figure 22 A system block diagram of the electronic device

[0299] In this embodiment, the electronic device 5 is a mobile device, where the mobile device can be a computer, a smart phone, a smart wearable device, an aerial camera, or a vehicle-mounted video recording and display instrument, etc. The present invention is not limited thereto. The electronic device 5 includes an imaging device 4, imaging devices 5a, 5b, 5c, 5d, 5e, 5f, 5g, a flash module 52, a focus assist module 53, an image signal processor 54 (Image Signal Processor), a user interface 55, and an image software processor 56.

[0300] The imaging device 4, imaging devices 5a, 5b, 5c, and 5d are all disposed on the same side of the electronic device 5. The imaging devices 5e, 5f, 5g, and the user interface 55 are all disposed on the other side of the electronic device 5, and the user interface 55 is a display device, so that the imaging devices 5e and 5f can be used as front cameras to provide a self-timer function, but the present invention is not limited thereto.

[0301] The imaging devices 5a, 5b, 5c, 5d, 5e, 5f, and 5g may all include the driver of the present invention and may all have a structural configuration similar to that of the imaging device 4. Specifically, the imaging devices 5a, 5b, 5c, 5d, 5e, 5f, and 5g may each include an imaging lens, a driver, an electronic photosensitive element, and an image stabilization module. Among them, the imaging lenses of the imaging devices 5a, 5b, 5c, 5d, 5e, 5f, and 5g may each include an optical lens group, a lens barrel for carrying the optical lens group, and a support device.

[0302] The imaging device 4 is a wide-angle imaging device, the imaging device 5a is an ultra-wide-angle imaging device, the imaging device 5b is a macro imaging device, the imaging device 5c is a telephoto imaging device, the imaging device 5d is an ultra-telephoto imaging device, the imaging device 5e is an ultra-wide-angle imaging device, the imaging device 5f is a wide-angle imaging device, and the imaging device 5g is a Time of Flight (ToF) imaging device. The imaging devices 4, 5a, 5b, 5c, and 5d of this embodiment have different viewing angles, enabling the electronic device 5 to provide different magnification ratios to achieve the shooting effect of optical zoom. For example, the ultra-wide-angle imaging device 5a or 5e has a maximum viewing angle of 105 degrees to 125 degrees, and it can achieve an image with an equivalent focal length between 11 mm and 14 mm. The ultra-wide-angle imaging device 5a or 5e can be regarded as providing a magnification ratio of 0.5 times. The image captured in this case can be referred to Figure 25 , which is a schematic diagram of the image captured by the electronic device 5 with an equivalent focal length between 11 mm and 14 mm. The captured image includes the entire church, surrounding buildings, and people on the square. Figure 25 The image of Figure 26 has a larger viewing angle and depth of field, but is often accompanied by a larger distortion. The wide-angle imaging device 4 or 5f has a maximum viewing angle of 70 degrees to 90 degrees, and it can achieve an image with an equivalent focal length between 22 mm and 30 mm. The wide-angle imaging device 4 or 5f can be regarded as providing a magnification ratio of 1 times. The image captured in this case can be referred to Figure 27 , which is a schematic diagram of the image captured by the electronic device 5 with an equivalent focal length between 22 mm and 30 mm. The captured image includes the entire church and the people in front of the church. The telephoto imaging device 5c has a maximum viewing angle of 15 degrees to 30 degrees, and it can achieve an image with an equivalent focal length between 100 mm and 150 mm. The telephoto imaging device 5c can be regarded as providing a magnification ratio of 5 times. The image captured in this case can be referred to Figure 27 , which is a schematic diagram of the image captured by the electronic device 5 with an equivalent focal length between 100 mm and 150 mm. The captured image includes the flocks of birds flying in front of the church. Figure 28, is a schematic diagram of an image captured by the electronic device 5 with an equivalent focal length between 400 mm and 600 mm, where the captured image includes an angel statue and a cross above the church spire. Figure 28 The image of Figure 28 has a smaller viewing angle and depth of field, making it easier for the imaging lens of the super-telephoto imaging device 5d to be out of focus due to jitter. Therefore, when the driver provides a driving force to focus the imaging lens of the super-telephoto imaging device 5d on the target object, it can simultaneously provide a feedback force to correct jitter to achieve the effect of optical image stabilization. In addition, the imaging device 5g can obtain the depth information of the image. The above electronic device 5 takes the example of including multiple imaging devices 4, 5a, 5b, 5c, 5d, 5e, 5f, 5g, but the number and configuration of the imaging devices are not used to limit the present invention.

[0303] When the user shoots the object OBJ, the electronic device 5 uses the imaging device 4, the imaging device 5a, the imaging device 5b, the imaging device 5c or the imaging device 5d to collect light and take an image, activates the flash module 52 to provide fill light, and uses the object distance information of the object OBJ provided by the focus assist module 53 for rapid focusing. Coupled with the image signal processor 54 for image optimization processing, the image quality generated by the imaging lens 10 is further improved. The focus assist module 53 can adopt an infrared or laser focus assist system to achieve rapid focusing.

[0304] In addition, the electronic device 5 can also use the imaging device 5e, the imaging device 5f or the imaging device 5g to take pictures. When the imaging device 5e, the imaging device 5f or the imaging device 5g takes pictures, a reminder light 5h can emit light to remind the user that the electronic device 5 is taking pictures. The user interface 55 can adopt a touch screen or a physical shooting button 551, and cooperate with the diverse functions of the image software processor 56 to perform image shooting and image processing. The image processed by the image software processor 56 can be displayed on the user interface 55. The user can also replay the previously taken image through the image playback button 552 of the user interface 55, can also select a suitable imaging device for shooting through the imaging device switching button 553, and can also adjust the suitable shooting conditions for the current shooting scene through the integrated menu button 554.

[0305] Furthermore, the electronic device 5 further includes a circuit board 57, and the circuit board 57 carries a plurality of electronic components 58. The imaging devices 4, 5a, 5b, 5c, 5d, 5e, 5f, 5g are electrically connected to the electronic components 58 through the connectors 571 on the circuit board 57. Among them, the electronic components 58 may include a signal transmission module 581, and the image can be transmitted to other electronic devices or cloud storage through the signal transmission module 581. Among them, the signal transmission module 581 may be a Wireless Fidelity (WiFi) module, a Bluetooth module, an infrared module, a network service module, or an integrated module of the above multiple signal transmissions. The present invention is not limited thereto.

[0306] The electronic components 58 may also include a memory 582, a random access memory 583 for storing image signals, a gyroscope 584, and a position locator 585 to facilitate the navigation or positioning of the electronic device 5. In this embodiment, the image signal processor 54, the image software processor 56, and the random access memory 583 are integrated into a single-chip system 59. However, the present invention is not limited to this configuration. In some other embodiments, the electronic components may also be integrated into the imaging device or may be disposed on one of the multiple circuit boards.

[0307] The drivers 1-3 of the present invention are not limited to being applied to mobile devices. The drivers 1-3 can more be applied to a mobile focusing system according to requirements, and have the characteristics of excellent aberration correction and good imaging quality. For example, the drivers 1-3 can be applied to electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring devices, dash cams, reverse imaging devices, multi-lens devices, identification systems, motion-sensing game consoles, and wearable devices in various aspects. The foregoing electronic devices are only exemplary illustrations of the actual application examples of the present invention, and do not limit the application scope of the camera module of the present invention.

[0308] Although the present invention is disclosed as above in the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the patent protection scope of the present invention shall be subject to the scope defined by the claims attached to this specification.

Claims

1. A driver for driving an imaging lens, characterized in that, The driver includes: A frame part for accommodating the imaging lens; A receiving part disposed on the frame part, the receiving part being used for receiving the imaging lens, and the receiving part being used for providing at least one degree of freedom for the imaging lens to move relative to the frame part; A driving part for driving the imaging lens to move along the direction of the at least one degree of freedom; An optical identification structure disposed on a part of one of the frame part, the receiving part and the driving part, the optical identification structure includes a plurality of optical identification units, the optical identification units are arranged adjacent to each other, and each optical identification unit includes a first optical identification surface; and A curable liquid, a damping liquid or a lubricating liquid is disposed on the optical identification structure, and the curable liquid, the damping liquid or the lubricating liquid is in physical contact with one of the imaging lens, the frame part, the receiving part and the driving part adjacent to the optical identification structure; Wherein, the area of each first optical identification surface is A, and the distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions: 0.001 square millimeter ≤ A ≤ 0.5 square millimeter; and 0.03 millimeter ≤ D ≤ 1.0 millimeter.

2. The driver according to claim 1, characterized in that, The area of each first optical identification surface is A, which satisfies the following conditions: 0.0015 square millimeter ≤ A ≤ 0.1 square millimeter.

3. The driver according to claim 2, characterized in that, The area of each first optical identification surface is A, which satisfies the following conditions: 0.002 square millimeter ≤ A ≤ 0.042 square millimeter.

4. The driver according to claim 1, wherein The area of each first optical identification surface is A, and the distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions:

5. The driver according to claim 4, wherein The area of each first optical identification surface is A, and the distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions:

6. The driver according to claim 1, characterized in that, Each optical identification unit further includes a second optical identification surface, and the first optical identification surface and the second optical identification surface in each optical identification unit are arranged adjacent to each other; Wherein, the included angle between an observation direction and the optical identification structure is θ, and the gloss difference ΔG between the first optical identification surface and the second optical identification surface in each optical identification unit in the observation direction satisfies the following conditions: 50 degrees ≤ θ ≤ 90 degrees; and 15 gloss units ≤ ΔG ≤ 50 gloss units.

7. The driver according to claim 6, characterized in that, The roughness difference ΔR between the first optical identification surface and the second optical identification surface in each optical identification unit in a direction satisfies the following conditions: 0.01 micron ≤ ΔR ≤ 3.5 microns.

8. The driver according to claim 6, wherein The height difference ΔH between the first optical identification surface and the second optical identification surface in each optical identification unit in the direction perpendicular to the first optical identification surface satisfies the following conditions: 0.001 millimeter ≤ ΔH ≤ 0.1 millimeter.

9. The driver according to claim 6, characterized in that, The intersection angle Φ between the first optical identification surface and the second optical identification surface in each optical identification unit satisfies the following conditions: 3 degrees ≤ Φ ≤ 75 degrees.

10. The driver according to claim 1, characterized in that, The frame part has a mounting position, and the optical identification structure, the curable liquid, the damping liquid or the lubricating liquid are arranged at the mounting position; Wherein, a part of one of the imaging lens, the frame part, the receiving part and the driving part adjacent to the optical identification structure is arranged at the mounting position and faces the optical identification structure.

11. The driver according to claim 10, characterized in that, The driving part includes a coil and a magnetic element, and the coil and the magnetic element are arranged opposite to each other in space; Wherein, one of the coil and the magnetic element is arranged at the mounting position and is joined to the frame part through the curable liquid, the damping liquid or the lubricating liquid.

12. The driver according to claim 10, characterized in that, The receiving part includes a supporting element, and the supporting element is in physical contact with both the frame part and the imaging lens at the same time; Wherein, a part of the supporting element is arranged at the mounting position and is joined to the frame part through the curable liquid, the damping liquid or the lubricating liquid.

13. The driver according to claim 10, characterized in that, The frame part includes a positioning projection, the positioning projection is located at the mounting position, one of the imaging lens, the frame part, the receiving part and the driving part adjacent to the optical identification structure has a positioning hole, and the positioning hole corresponds to the positioning projection.

14. An imaging device, characterized in that, Comprising: The driver according to claim 1; and The imaging lens according to claim 1.

15. An electronic device, characterized in that, Comprising: The imaging device according to claim 14; and An electronic photosensitive element, arranged on an imaging surface of the imaging lens.

16. A driver for driving an imaging lens, characterized in that, The driver includes: A frame part for accommodating the imaging lens; A receiving part arranged on the frame part, the receiving part is used for receiving the imaging lens, and the receiving part is used for providing at least one degree of freedom for the imaging lens to move relative to the frame part; A driving part for driving the imaging lens to move along the direction of the at least one degree of freedom; An optical identification structure for being arranged on the imaging lens, the optical identification structure faces at least a part of one of the frame part, the receiving part and the driving part, the optical identification structure includes a plurality of optical identification units, the optical identification units are arranged adjacent to each other, and each optical identification unit includes a first optical identification surface; and A curable liquid, a damping liquid or a lubricating liquid, arranged on the optical identification structure, and the curable liquid, the damping liquid or the lubricating liquid is in physical contact with one of the frame part, the receiving part and the driving part adjacent to the optical identification structure; Wherein, the area of each first optical identification surface is A, and the distance between the graphic centers of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions: 0.001 square millimeter ≤ A ≤ 0.5 square millimeter; and 0.03 millimeter ≤ D ≤ 1.0 millimeter.

17. The driver according to claim 16, characterized in that, The area of each first optical identification surface is A, which satisfies the following conditions: 0.0015 square millimeter ≤ A ≤ 0.1 square millimeter.

18. The driver according to claim 17, characterized in that, The area of each first optical identification surface is A, which satisfies the following conditions: 0.002 square millimeter ≤ A ≤ 0.042 square millimeter.

19. The driver according to claim 16, wherein The area of each of the first optical identification surfaces is A, and the distance between the centers of the patterns of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions:

20. The driver according to claim 19, characterized in that, The area of each of the first optical identification surfaces is A, and the distance between the centers of the patterns of two adjacent ones of the first optical identification surfaces is D, which satisfies the following conditions:

21. The driver according to claim 16, wherein, Each of the optical identification units further includes a second optical identification surface, and the first optical identification surfaces in each of the optical identification units are arranged adjacent to each other; Wherein, the included angle between an observation direction and the optical identification structure is θ, and the gloss difference ΔG between the first optical identification surface and the second optical identification surface in each of the optical identification units in the observation direction satisfies the following conditions: 50 degrees ≤ θ ≤ 90 degrees; and 15 gloss units ≤ ΔG ≤ 50 gloss units.

22. The driver according to claim 21, characterized in that, The roughness difference ΔR between the first optical identification surface and the second optical identification surface in each of the optical identification units in a direction satisfies the following conditions: 0.01 micrometer ≤ ΔR ≤ 3.5 micrometers.

23. The driver according to claim 21, characterized in that, The height difference ΔH between the first optical identification surface and the second optical identification surface in each of the optical identification units in a direction perpendicular to the first optical identification surface satisfies the following conditions: 0.001 millimeter ≤ ΔH ≤ 0.1 millimeter.

24. The driver according to claim 21, characterized in that, The intersection angle Φ between the first optical identification surface and the second optical identification surface in each of the optical identification units satisfies the following conditions: 3 degrees ≤ Φ ≤ 75 degrees.

25. The driver according to claim 16, characterized in that, The imaging lens has a mounting position, and the optical identification structure and the curable liquid, damping liquid or lubricating liquid are arranged at the mounting position; Wherein, a part of one of the frame portion, the receiving portion and the driving portion adjacent to the optical identification structure is arranged at the mounting position and faces the optical identification structure.

26. The driver according to claim 25, wherein, The driving portion includes a coil and a magnetic element, and the coil and the magnetic element are arranged opposite to each other in space; Wherein, one of the coil and the magnetic element is arranged at the mounting position and is joined to the imaging lens through the curable liquid, damping liquid or lubricating liquid.

27. The driver according to claim 25, wherein The receiving portion includes a supporting element, and the supporting element is in physical contact with both the frame portion and the imaging lens at the same time; Wherein, a part of the supporting element is arranged at the mounting position and is joined to the imaging lens through the curable liquid, damping liquid or lubricating liquid.

28. The driver according to claim 25, characterized in that, The imaging lens includes a positioning protrusion, the positioning protrusion is located at the mounting position, and one of the frame portion, the receiving portion and the driving portion adjacent to the optical identification structure has a positioning hole, and the positioning hole corresponds to the positioning protrusion.

29. An imaging device, characterized in that, Comprising: The driver according to claim 16; and The imaging lens according to claim 16.

30. An electronic device, characterized in that, Comprising: The imaging device according to claim 29; and An electronic photosensitive element, arranged on an imaging surface of the imaging lens.

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