Lens assembly

Abstract

The embodiment of the invention discloses a lens assembly, which is characterized in that a stop structure is arranged on the opposite side of a lens seat or a mounting seat, and a first connecting area and a second connecting area of an elastic part are respectively connected with the mounting seat and the lens seat. Therefore, by utilizing the first stop part and the second stop part which are arranged at an interval, the limiting precision of the stop structure on the lens seat and the mounting seat is improved. And on the other hand, the elastic body is arranged between the first stop part and the second stop part, so that when the lens seat inclines towards one side of the elastic part, the inclination amplitude of the lens seat can be reduced, and excessive wear of the first stop part or the second stop part is avoided. And meanwhile, abnormal deformation of the elastic body can be avoided. And the service lives of the elastic part, the lens seat and the mounting seat are ensured.

Description

Technical Field

[0001] The invention relates to the field of camera technology, and in particular to a lens assembly. Background Art

[0002] The spring sheet in the lens assembly is arranged between the lens seat and the base, so that the lens seat is suspended on the base through the spring sheet, thereby playing the role of fixing the lens seat, driving the lens seat to reset, buffering and shock absorbing. However, it is difficult to ensure that the lens seat always moves along the axial direction of the lens, which may cause the lens seat to tilt when it contacts the base through the limiting structure. In turn, it causes wear of the limiting structure, the lens seat or the base, and abnormal deformation of the spring sheet. How to ensure the position accuracy of the lens seat when it contacts the base has become a problem that needs to be solved. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a lens assembly, in which a stop structure is arranged on opposite sides of a lens mount and a mounting seat, and a first stop portion and a second stop portion are arranged on both sides of an elastic body, respectively. Thus, when the lens mount abuts against the mounting seat through the stop structure, the first stop portion cooperates with the second stop portion to prevent the lens mount from being excessively tilted, thereby ensuring the relative position accuracy of the lens mount and the mounting seat.

[0004] The lens assembly of the embodiment of the present invention comprises:

[0005] Mounting seat;

[0006] Lens mount;

[0007] an elastic portion, comprising a first connecting area, a second connecting area and an elastic body, wherein the elastic body is connected between the first connecting area and the second connecting area, the first connecting area is connected to the mounting seat, and the second connecting area is connected to the lens seat; and

[0008] A stop structure is arranged on the lens mount and / or the mounting seat, and the stop structure includes a first stop portion and a second stop portion, the first stop portion and the second stop portion protrude toward opposite sides of the lens mount and the mounting seat, and the first stop portion and the second stop portion are located on both sides of the elastomer.

[0009] Further, the protrusion height of the second stop portion is greater than the protrusion height of the first stop portion, and the difference between the protrusion heights of the second stop portion and the first stop portion is within a predetermined range.

[0010] Furthermore, a difference in protrusion height between the second stop portion and the first stop portion is C, wherein 0mm﹤C≤0.0387mm.

[0011] Further, the lens mount has a first contact position and a second contact position;

[0012] At the first contact position, the lens mount and the mounting seat abut against each other through the second stopper, and the first stopper is in a spaced state with the lens mount or the mounting seat;

[0013] At the second contact position, the lens seat and the mounting seat abut against each other through the first stop portion and the second stop portion.

[0014] Further, the elastic body includes a first connecting end and a second connecting end, the first connecting end is connected to the first connecting area, and the second connecting end is connected to the second connecting area;

[0015] The first stop portion is closer to the first connection end than the second stop portion.

[0016] Further, the first connecting end is connected to a side of the first connecting area close to the first stop portion;

[0017] The second stop portion is located at a side of the first connection area away from the first stop portion, and the second connection area is arranged adjacent to the second stop portion.

[0018] Furthermore, the mounting seat has a first surface, and the first surface is convexly provided with a first connecting boss;

[0019] The first connection area is disposed on the surface of the first connection boss, and at least a portion of the elastic body is opposite to the first surface and is spaced apart from it.

[0020] Furthermore, in the projection direction of the mounting seat, at least a portion of the first stop portion and at least a portion of the second stop portion overlap with an edge area of ​​the lens mount, and the first connection area is staggered with the lens mount.

[0021] Furthermore, the lens mount has a second surface, the second surface faces the first surface, and a second connecting boss is convexly provided on the second surface;

[0022] The second connection area is disposed on the surface of the second connection protrusion, and at least a portion of the elastic body is opposite to the second surface and is spaced apart from it.

[0023] Furthermore, the first connection area is a sheet-like structure, and the protrusion heights of the first stopper and the second stopper are greater than the thickness of the sheet-like structure;

[0024] When the elastic portion is in a free state, the first connecting area corresponds to a side surface of the first stop portion and a side surface of the second stop portion.

[0025] Further, the elastic body includes a first connecting end and a second connecting end, the first connecting end is connected to the first connecting area, and the second connecting end is connected to the second connecting area;

[0026] The first connecting area has a first side edge, the first side edge is located at a side of the first connecting area close to the lens mount and at an edge of the first connecting boss, and the first connecting end is connected to the first side edge.

[0027] Furthermore, the first side edge includes an avoidance section and a connection section in the length direction, the avoidance section is located on the table surface of the first connection boss, and the connection section is relative to the avoidance section, close to the edge of the first connection boss and connected to the first connection end;

[0028] The first stop portion is disposed adjacent to the connecting section, and the second stop portion is disposed adjacent to the avoiding section.

[0029] Further, the first stop portion includes a first stop boss, and the first stop boss has a first stop surface;

[0030] The second stop portion comprises a second stop boss, and the second stop boss has a second stop surface;

[0031] An area of ​​the first stop surface is greater than an area of ​​the second stop surface.

[0032] Further, a straight line connecting the first stop surface and the second stop surface away from the lens mount passes through the first connecting end and is located on a side of the first side edge close to the lens mount.

[0033] Further, the first stop boss and the second stop boss are arranged on the mounting seat, and the first stop boss and the second stop boss protrude toward the lens seat, and the edge of the table surface of the second stop boss is provided with a rounded corner.

[0034] Furthermore, the second stop portion further includes a third stop boss;

[0035] The first stop boss and the second stop boss are arranged on the lens mount, and the first stop boss and the second stop boss protrude toward the mounting seat, the third stop boss is arranged on the mounting seat, the third stop boss protrudes toward the mounting seat and corresponds to the second stop boss, and the table edge of the second stop boss and / or the third stop boss is provided with a rounded corner.

[0036] Furthermore, the first stopper and the second stopper are both multiple in number, and the first stopper and the second stopper form a stopper unit;

[0037] There are multiple elastic parts, each of which includes multiple elastic units corresponding to the multiple stop units one by one, and each elastic unit includes the first connecting area, the second connecting area and the elastomer, and the multiple elastic units are located on a side away from the multiple elastic parts.

[0038] Furthermore, the number of the elastic parts is two, the two elastic parts are arranged opposite to each other, the elastic part comprises a connector, and two ends of the connector are connected to two second connecting areas;

[0039] The elastic portion includes two elastic units, and the two first stop portions corresponding to the same elastic portion are located at a side where the two elastic units are close to each other.

[0040] Furthermore, the stop structure further includes:

[0041] Two third stoppers are provided on the lens mount and / or the mounting seat, the third stoppers protrude toward opposite sides of the lens mount and the mounting seat, and the protrusion height of the third stoppers is the same as that of the second stoppers;

[0042] The two third stop portions are respectively arranged corresponding to the two elastic portions, and the third stop portion is located between the corresponding two first stop portions.

[0043] Furthermore, the stop structure further includes:

[0044] Two rotation limit parts are respectively arranged corresponding to the two third stop parts. The rotation limit parts are arranged on the lens mount and / or the mounting seat and protrude toward the opposite sides of the lens mount and the mounting seat. The side surfaces of the rotation limit parts are at least partially opposite to the side surfaces of the third stop parts.

[0045] In the lens assembly of the embodiment of the present invention, the stop structure is arranged on the opposite side of the lens seat or the mounting seat, and the first connection area and the second connection area of ​​the elastic part are respectively connected to the mounting seat and the lens seat. Therefore, the first stop part and the second stop part arranged at intervals are used to improve the limiting accuracy of the stop structure on the lens seat and the mounting seat. On the other hand, the elastic body is arranged between the first stop part and the second stop part. When the lens seat tilts toward one side of the elastic body, the tilt amplitude of the lens seat can be reduced, thereby avoiding excessive wear of the first stop part or the second stop part. At the same time, abnormal deformation of the elastic body can also be avoided. The service life of the elastic part, the lens seat and the mounting seat is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0047] Figure 1 is a structural schematic diagram of one side of a lens assembly provided by a first embodiment of the present invention;

[0048] Figure 2 is a structural schematic diagram of the other side of the lens assembly provided by the first embodiment of the present invention;

[0049] Figure 3 is a structural schematic diagram of another side of the lens assembly provided by the first embodiment of the present invention;

[0050] Figure 4 is a structural schematic diagram of one side of a lens assembly provided by a second embodiment of the present invention;

[0051] Figure 5 is a schematic structural diagram of the other side of the lens assembly provided by the second embodiment of the present invention;

[0052] Figure 6 is a partial structural schematic diagram of a lens assembly provided in a second embodiment of the present invention;

[0053] Figure 7 is an exploded schematic diagram of a lens assembly provided by a first embodiment of the present invention;

[0054] Figure 8 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0055] Fig. 9 is an exploded schematic diagram of a lens assembly provided by a second embodiment of the present invention;

[0056] Fig.10 yes Figure 5 The enlarged schematic diagram of point B in the middle;

[0057] Fig.11 is a schematic diagram of the dimensions of the stop structure provided by the first embodiment of the present invention;

[0058] Fig.12 is a schematic diagram of the dimensions of a stopper structure provided in a second embodiment of the present invention;

[0059] Fig.13 is a schematic diagram of the motion state of a lens assembly according to an embodiment of the present invention;

[0060] Fig.14 is a cross-sectional schematic diagram of a lens assembly provided by a first embodiment of the present invention;

[0061] Fig.15 is a schematic structural diagram of an elastic portion and a mounting seat provided in a first embodiment of the present invention;

[0062] Fig.16is a schematic structural diagram of one side of the elastic portion and the mounting seat provided by the second embodiment of the present invention;

[0063] Fig.17 is a schematic structural diagram of the elastic portion and the other side of the mounting seat provided by the second embodiment of the present invention;

[0064] Fig.18 is a schematic diagram of the positional relationship between the elastic portion and the mounting seat provided in the first embodiment of the present invention;

[0065] Fig.19 is a partial schematic diagram of the elastic portion provided by the first embodiment of the present invention;

[0066] Fig. 20 is a schematic diagram of the positional relationship between the elastic portion and the lens mount provided by the second embodiment of the present invention;

[0067] Fig.21 It is a partial schematic diagram of the elastic portion provided by the second embodiment of the present invention.

[0068] Description of reference numerals:

[0069] 1-Stop structure;

[0070] 11-first stopper; 12-second stopper; 13-third stopper; 14-rotation limiter;

[0071] 2- elastic part;

[0072] 21-first connection area; 211-first side edge; 212-avoidance section; 213-connection section;

[0073] 22- second connection area;

[0074] 23-elastic body; 231-first connecting end; 232-second connecting end;

[0075] 24-connector;

[0076] 3- Lens mount;

[0077] 31- second surface; 32- second connecting boss;

[0078] 4-Mounting seat;

[0079] 41-first surface; 42-first connecting boss; 421-first side surface;

[0080] 51-first stop boss; 511-first stop surface;

[0081] 52-second stop boss; 521-second stop surface;

[0082] 53- third stop boss;

[0083] 6- Connect the straight lines;

[0084] 7- Coil. DETAILED DESCRIPTION

[0085] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In order to avoid confusing the essence of the present invention, known methods, processes, flows, components and circuits are not described in detail.

[0086] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0087] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0088] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0089] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0091] Figure 1-Figure 3 It is a structural schematic diagram of the lens assembly provided in the first embodiment. Figure 4-Figure 6 Schematic diagram of the structure of the lens assembly provided by the second embodiment.

[0092] In some embodiments, Figure 1-Figure 6 As shown, the lens assembly in this embodiment includes a stopper structure 1, an elastic portion 2, a lens mount 3, a mounting seat 4 and a coil 7. The coil 7 is disposed on the lens mount 3. The stopper structure 1 is disposed on the lens mount 3 and / or the mounting seat 4, and the stopper structure 1 is located on opposite sides of the lens mount 3 and the mounting seat 4. When the lens mount 3 and the mounting seat 4 are close to each other, the stopper structure 1 is used to limit the relative position between the lens mount 3 and the mounting seat 4.

[0093] Furthermore, the lens assembly also includes a lens and a magnetic assembly. The lens is arranged in a fixing hole of the lens holder 3. The magnetic field generated by the coil 7 after being energized can act on the magnetic assembly, and then the magnetic assembly is used to drive the lens to move.

[0094] Figure 7 It is an exploded schematic diagram of the lens assembly provided in the first embodiment. Figure 8 yes Figure 3 A magnified schematic diagram of center A. Fig. 9 Schematic diagram of an exploded view of the lens assembly provided in the second embodiment. Fig.10 yes Figure 5 A magnified schematic diagram of point B in the middle.

[0095] Further reference Figure 7-Figure 10 As shown, the elastic portion 2 includes a first connecting area 21, a second connecting area 22 and an elastic body 23, the elastic body 23 is connected between the first connecting area 21 and the second connecting area 22, the first connecting area 21 is connected to the mounting seat 4, and the second connecting area 22 is connected to the lens seat 3.

[0096] Optionally, the first connection area 21 and the second connection area 22 can be fixed to the outer surface of the mounting seat 4 and the lens holder 3, respectively. For example, they can be fixed by adhesive or welding, etc. Or, by using an insert molding process, the first connection area 21 and the second connection area 22 can be respectively arranged as inserts on the inner side of the mounting seat 4 and the lens holder 3.

[0097] Specifically, the second connection area 22 and the lens holder 3 as well as the first connection area 21 and the mounting seat 4 are fixed by adhesive, and then the first connection area 21 and the mounting seat 4 are fixed again by welding.

[0098] Further reference Figure 1-Figure 10As shown, the stop structure 1 includes a first stop portion 11 and a second stop portion 12. The first stop portion 11 and the second stop portion 12 are arranged in pairs, the first stop portion 11 and the second stop portion 12 protrude toward the opposite sides of the lens holder 3 and the mounting seat 4, and the first stop portion 11 and the second stop portion 12 are located on both sides of the elastic body 23.

[0099] Specifically, when the magnetic force of the magnetic assembly disappears, the lens mount 3 will approach the mounting seat 4 under the action of the restoring elastic force of the elastic body 23 until the lens mount 3 collides with the mounting seat 4 through the stop structure 1. Then, the lens mount 3 will separate from the mounting seat 4 again, and the lens mount 3 will be suspended above the mounting seat 4. In this form, there is a certain gap between the lens mount 3 and the mounting seat 4.

[0100] Optionally, the first stopper 11 and the second stopper 12 are simultaneously disposed on the mounting seat 4, so that the first stopper 11 and the second stopper 12 simultaneously protrude toward the lens mount 3. Thus, the overall weight of the lens mount 3 is reduced, and when the magnetic assembly drives the lens mount 3 to move, the response speed of the lens mount 3 can be increased.

[0101] Optionally, the first stopper 11 and the second stopper 12 are simultaneously disposed on the lens mount 3, so that the first stopper 11 and the second stopper 12 simultaneously protrude toward the mounting seat 4. Thus, the overall mechanical strength of the lens mount 3 is improved.

[0102] Optionally, the first stopper 11 is disposed on the lens mount 3, and the second stopper 12 is disposed on the mounting seat 4. Alternatively, the first stopper 11 is disposed on the mounting seat 4, and the second stopper 12 is disposed on the lens mount 3. Thus, it is convenient for those skilled in the art to control the center of gravity of the lens mount 3 through the stopper structure 1, and ensure the movement accuracy of the lens mount 3.

[0103] Specifically, the stopper structure 1 is injection molded together with the lens holder 3 and / or the mounting seat 4. The injection molding material may be engineering plastic (eg ET530). Thus, it is ensured that the stopper structure 1 has a certain wear resistance.

[0104] In summary, in the lens assembly of this embodiment, the stop structure 1 is arranged on the opposite side of the lens holder 3 or the mounting seat 4, and the first connection area 21 and the second connection area 22 of the elastic part 2 are connected to the mounting seat 4 and the lens holder 3 respectively. Therefore, the first stop part 11 and the second stop part 12 arranged at intervals are used to improve the limiting accuracy of the stop structure 1 on the lens holder 3 and the mounting seat 4. On the other hand, the elastic body 23 is arranged between the first stop part 11 and the second stop part 12. When the lens holder 3 tilts toward one side of the elastic part 2, the tilting amplitude of the lens holder 3 can be reduced, and excessive wear of the first stop part 11 or the second stop part 12 can be avoided. At the same time, abnormal deformation of the elastic body 23 can also be avoided. The service life of the elastic part 2, the lens holder 3 and the mounting seat 4 is guaranteed.

[0105] Fig.11 It is a schematic diagram of the dimensions of the stop structure 1 provided in the first embodiment. Fig.12 It is a schematic diagram of the dimensions of the stop structure 1 provided in the second embodiment. Fig.13 It is a schematic diagram of the motion state of the lens assembly.

[0106] Specifically, Fig.11 As shown, the first stopper 11 and the second stopper 12 are protruded from the mounting seat 4. The height of the first stopper 11 is dimension A1, and the height of the second stopper 12 is dimension A2. The lens mount 3 in the figure is suspended above the mounting seat 4, that is, the lens mount 3 is in a stationary state. The lens mount 3 has a second surface 31 that cooperates with the stopper structure 1. In this form, the distances from the first stopper 11 and the second stopper 12 to the second surface 31 are dimensions L1 and L2, respectively.

[0107] Specifically, Fig.12 As shown, the first stopper 11 is convexly disposed on the lens holder 3, and the second stopper 12 is disposed on both the lens holder 3 and the mounting seat 4. The height of the first stopper 11 is dimension A1, and the height of the second stopper 12 is dimension A2. The second stopper 12 includes a second stopper boss 52 and a second stopper boss 52, and the height dimensions of the second stopper boss 52 and the second stopper boss 52 are dimension A21 and dimension A22, respectively. That is, the sum of dimension A21 and dimension A22 is equal to dimension A2.

[0108] Specifically, Fig.13As shown, states I and II correspond to the first embodiment described above. State III corresponds to the second embodiment described above. In states I and III, the lens mount 3 touches the stop structure 1 along the axial direction of the lens or approximately along the axial direction of the lens. In this form, the second stop portion 12 abuts against the lens mount 3 (the second stop boss 52 abuts against the second stop boss 52), while the first stop portion 11 maintains a gap with the lens mount 3 or the mounting seat 4. In addition, the enlarged view of state III shows the state of the edge position of the second stop boss 52 and the third stop boss 53 after the lens mount 3 is tilted. In state II, the lens mount 3 tilts after touching the second stop portion 12, causing part of the second surface 31 to abut against the first stop portion 11. That is, the lens mount 3 has a secondary collision with the stop structure 1.

[0109] In state I, the lens holder 3 flips along one side edge of the second stop boss 52, and the flip radius is approximately R1. In state III, the lens holder 3 flips along the edge of the second stop boss 52 and the third stop boss 53, and the flip radius is approximately R2. As can be seen from the figure, the height difference between the first stop boss 51 and the second stop boss 52 in state I is greater than the height difference between the first stop boss 51 and the second stop boss 52 in state III. As a result, R1 is greater than R2. Therefore, when the stop structure 1 undergoes a secondary collision, the tilt amplitude of state I is greater than the tilt amplitude of state III.

[0110] In some embodiments, Figure 11-Figure 12 As shown, the protruding height of the second stopper 12 is configured to be greater than the protruding height of the first stopper 11, and the difference between the protruding heights of the second stopper 12 and the first stopper 11 is within a predetermined range. That is, the dimension A2 is greater than the dimension A1.

[0111] Therefore, the height dimensions of the first stopper 11 and the second stopper 12 in this embodiment are configured to be different, which reduces the situation where the lens holder 3 or the mounting seat 4 contacts the first stopper 11 and the second stopper 12 at the same time, that is, reduces the contact area between the stopper structure 1 and the lens holder 3 or the mounting seat 4. Therefore, it is helpful for those skilled in the art to control the relative distance between the lens holder 3 and the mounting seat 4 through the stopper structure 1. At the same time, the wear of the stopper structure 1 can also be reduced.

[0112] In some embodiments, Figure 11-13 As shown, the lens mount 3 has a first contact position and a second contact position.

[0113] It is easy to understand that there are uncontrollable factors in the elastic deformation of the elastic part 2. That is, in some cases, the lens holder 3 can move along the axial direction. But in other cases, the deformation of the elastic body 23 causes the lens holder 3 to flip randomly without direction.

[0114] In this embodiment, when the motion trajectory of the lens holder 3 is relatively stable, it will contact the mounting seat 4 at the first contact position and move away from the mounting seat 4 after contact. In this process, the lens holder 3 and the mounting seat 4 abut against each other through the second stopper 12, and the first stopper 11 is in a spaced state with the lens holder 3 or the mounting seat 4. When the motion trajectory of the lens holder 3 is unstable (for example, the speed of the lens holder 3 is too fast or the elastic part 2 produces unstable deformation due to its own defects), the lens holder 3 will first contact the second stopper 12, then tilt, and contact the first stopper 11 at the second contact position. In this form, the lens holder 3 and the mounting seat 4 abut against each other through the first stopper 11 and the second stopper 12, and after abutting, the lens holder 3 and the mounting seat 4 move away from each other.

[0115] Optionally, the second surface 31 is a plane, and the dimension A2 is larger than the dimension A1, so that the dimension L2 is larger than the dimension L1. The second surface 31 is perpendicular or substantially perpendicular to the movement direction of the lens holder 3. For example, the stopper structure 1 is arranged on the mounting seat 4. Fig.11 and Fig.13 As shown, in this embodiment, when the movement trajectory of the lens holder 3 is stable, the lens holder 3 is limited by the second stopper 12, thereby reducing the contact area between the lens holder 3 and the stopper structure 1. Thus, the limiting accuracy is improved. In addition, the wear between the lens holder 3 and the stopper structure 1 is also reduced. On the other hand, when the movement trajectory of the lens holder 3 is unstable, the lens holder 3 tilts after contacting the second stopper 12. In this form, the first stopper 11, which is smaller in height than the second stopper 12, is used to limit the lens holder 3, thereby avoiding excessive tilting of the lens holder 3 and limiting the deformation of the elastic body 23. Fig.13 As shown in area IIa in FIG. 1 , the first stopper 11 can also prevent the edge of the second stopper 12 from being excessively worn, causing the top surface of the second stopper 12 to be inclined.

[0116] In some embodiments, Figure 11-Figure 12 As shown, the difference between the protrusion height of the second stopper 12 and the first stopper 11 is C. Among them, 0mm﹤C≤0.0387mm. That is, the value of the dimension A2 minus the dimension A1 is greater than 0mm and less than or equal to 0.0387mm. Optionally, C can be configured as 0.01mm.

[0117] It is easy to understand that in this embodiment, the influence of the tolerance generated by the stop structure 1 and the lens mount 3 and the mounting seat 4 on the height difference between the first stop portion 11 and the second stop portion 12 is taken into consideration, and the standard deviation of the dimensions of the lens mount 3, the mounting seat 4 and the stop structure 1 is controlled at 3σ, so that the lens assembly can meet the requirement of the height difference between the first stop portion 11 and the second stop portion 12 in 99.7% of the cases.

[0118] Fig.14It is a cross-sectional schematic diagram of the lens assembly provided in the first embodiment. Fig.15 It is a schematic structural diagram of the elastic portion 2 and the mounting seat 4 provided in the first embodiment. Fig.16 and Fig.17 It is a schematic structural diagram of the elastic portion 2 and the mounting seat 4 provided in the second embodiment. Fig.18 It is a schematic diagram of the positional relationship between the elastic portion 2 and the mounting seat 4 provided in the first embodiment. Fig.19 It is a partial schematic diagram of the elastic part 2 provided in the first embodiment. Fig. 20 Schematic diagram of the positional relationship between the elastic portion 2 and the lens holder 3 provided in the second embodiment. Fig.21 1 and 1 are partial schematic diagrams of the elastic portion 2 provided in the second embodiment. In each of the figures, a top surface of the first stopper 11 is drawn with a section line to distinguish it from the second stopper 12 and the third stopper 13.

[0119] In some embodiments, Figure 14-Figure 21 As shown, the elastic body 23 includes a first connection end 231 and a second connection end 232. The first connection end 231 is connected to the first connection area 21, and the second connection end 232 is connected to the second connection area 22. The stop structure 1 is configured such that the first stop portion 11 is closer to the first connection end 231 than the second stop portion 12.

[0120] Specifically, the elastic body 23 is a belt-shaped structure, and the elastic body 23 is bent and extended from the first connection area 21 to the second connection area 22. In this embodiment, when the lens holder 3 moves up and down, when the elastic part 2 generates elastic deformation, in the extension direction of the elastic body 23, the deformation amplitude of the area near the first connection end 231 is smaller than the deformation amplitude of the middle area of ​​the elastic body 23. As a result, the area near the first connection end 231 has less bending deformation along the thickness direction of the belt-shaped structure, and more circumferential torsional deformation along the extension direction of the belt-shaped structure.

[0121] To this end, the second stopper 12 is arranged away from the first connection end 231. When the lens holder 3 moves in the radial direction of the lens or flips in a direction away from the first stopper 11, the second stopper 12 can first limit the position thereof, thereby ensuring the contact area between the second stopper 12 and the lens holder 3. The first stopper 11 adjacent to the first connection end 231 can effectively limit the flipping range of the lens holder 3 when the lens holder 3 flips.

[0122] In some embodiments, Figure 14-Figure 21 As shown, the first connection end 231 is connected to a side of the first connection area 21 closer to the first stopper 11. The second stopper 12 is located on a side of the first connection area 21 away from the first stopper 11, and the second connection area 22 is disposed adjacent to the second stopper 12.

[0123] Specifically, in the axial cross-sectional direction of the lens, the second stopper 12 is staggered with the second connection area 22. In this embodiment, driven by the lens mount 3, the second connection area 22 has the largest movement amplitude, and staggering the second connection area 22 with the second stopper 12 can avoid the second connection area 22 from contacting the second stopper 12. At the same time, when the second connection area 22 drives the lens mount 3 to move, the contact area between the second stopper 12 and the lens mount 3 can also be guaranteed.

[0124] In some embodiments, Fig.16 As shown, the mounting seat 4 has a first surface 41, and the first surface 41 is convexly provided with a first connection boss 42. The first connection area 21 is arranged on the table surface of the first connection boss 42, and at least part of the elastic body 23 is opposite to the first surface 41 and is arranged at a distance. Specifically, the first connection boss 42 is located at the edge of the mounting seat 4. In this embodiment, when the elastic body 23 is bent and deformed, the elastic body 23 can be prevented from contacting the mounting seat 4, and it is ensured that the elastic part 2 has sufficient deformation space.

[0125] In some embodiments, Figure 1-Figure 6 As shown, in the projection direction of the lens mount 3 on the mounting seat 4 , at least part of the first stop portion 11 and at least part of the second stop portion 12 overlap with the edge area of ​​the lens mount 3 , and the first connection area 21 is offset from the lens mount 3 .

[0126] The first connection area 21 of this embodiment extends laterally to the lens holder 3 and is exposed outside the lens holder 3. This facilitates the operator to assemble the lens holder 3, the mounting seat 4 and the elastic part 2. For example, the second connection area 22 is first fixedly connected to the lens holder 3, and then the elastic part 2 and the lens holder 3 are placed on the edge of the mounting seat 4 through the first connection area 21. Finally, the first connection area 21 and the mounting seat 4 are bonded or welded.

[0127] In some embodiments, Figure 5 , Fig. 9 and Fig.14 As shown, the lens holder 3 has a second surface 31, the second surface 31 faces the first surface 41, and the second surface 31 is convexly provided with a second connection boss 32. The second connection area 22 is arranged on the table surface of the second connection boss 32, and at least part of the elastic body 23 is opposite to the second surface 31 and is arranged at intervals. The area between the first surface 41 and the second surface 31 in this embodiment forms a deformation space for the elastic body 23 to bend and deform. Avoid collision between the elastic body 23 and the lens holder 3 or the mounting seat 4.

[0128] Furthermore, if Figure 8As shown, the first connection area 21 is a sheet structure, and the protrusion height of the first stopper 11 and the second stopper 12 is greater than the thickness of the sheet structure. When the elastic part 2 is in a free state, the first connection area 21 corresponds to the side surface of the first stopper 11 and the side surface of the second stopper 12. Thus, it is avoided that the lens holder 3 directly contacts the first connection area 21, causing the first connection area 21 to be squeezed.

[0129] In some embodiments, Figure 18-Figure 21 As shown, the elastic body 23 includes a first connection end 231 and a second connection end 232, the first connection end 231 is connected to the first connection area 21, and the second connection end 232 is connected to the second connection area 22. The first connection area 21 has a first side edge 211, the first side edge 211 is located on a side of the first connection area 21 close to the lens holder 3, the first side edge 211 is at the edge of the first connection boss 42, and the first connection end 231 is connected to the first side edge 211. In this way, the first connection end 231 is prevented from contacting the top of the first connection boss 42, and when the strip-like structure is bent and deformed, the first connection end 231 can be prevented from colliding with the first connection boss 42.

[0130] In some embodiments, Figure 18-Figure 19 As shown, the first side edge 211 includes an avoidance section 212 and a connection section 213 in the length direction, the avoidance section 212 is located on the table surface of the first connection boss 42, and the connection section 213 is relative to the avoidance section 212, close to the edge of the first connection boss 42 and connected to the first connection end 231. The first stopper 11 is disposed adjacent to the connection section 213, and the second stopper 12 is disposed adjacent to the avoidance section 212.

[0131] Optionally, the connecting section 213 is aligned with the edge of the first connecting boss 42, or the connecting section 213 is configured to be aligned with the first side surface 421 of the first connecting boss 42. The first side surface 421 faces the central area of ​​the mounting seat 4 and is connected to the first surface 41.

[0132] Thus, the avoidance section 212 can prevent the edge of the lens holder 3 from being scratched by the first connection area 21, so that the material falling off the lens holder 3 forms dust attached to the lens assembly, affecting the imaging effect of the lens assembly. On the other hand, the first connection end 231 is separated from the first connection boss 42 to prevent the deformation of the elastic body 23 from interfering with the first connection boss 42. At the same time, the first stopper 11 is arranged adjacent to the connection section 213 to minimize the possibility that the lens holder 3 contacts the first connection area 21 after being tilted.

[0133] In some embodiments, Figure 14-17As shown, the first stop portion 11 includes a first stop boss 51 having a first stop surface 511. The second stop portion 12 includes a second stop boss 52 having a second stop surface 521. The area of ​​the first stop surface 511 is greater than the area of ​​the second stop surface 521.

[0134] In this embodiment, the area of ​​the first stop surface 511 is relatively small, which can reduce the wear between the first stop surface 511 and the lens holder 3 or the mounting seat 4. Fig.13 For example, when the lens mount 3 contacts the first stopper 11, only a part of the first stopper 11 contacts the lens mount 3. Therefore, in this embodiment, reducing the area of ​​the first stopper surface 511 can reduce the overall weight of the lens assembly and make it easier for those skilled in the art to control the height of the first stopper 11.

[0135] In some embodiments, Figure 18-Figure 21 As shown, the connecting straight line 6 between the first stop surface 511 and the second stop surface 521 away from the lens mount 3 passes through the first connecting end 231 and is located at a side of the first side edge 211 close to the lens mount 3 .

[0136] Specifically, the connecting straight line 6 is located on the side of the connecting section 213 close to the lens holder 3. The connecting straight line 6 in this embodiment is a virtual line segment, which is formed by connecting the side walls of the first stopper 11 and the second stopper 12 on the side away from the fixing hole. When the lens holder 3 flips toward the first connecting boss 42, the edge of the first connecting area 21 can be prevented from being lifted from the top of the first connecting boss 42 under the drive of the lens holder 3. Thus, the first connecting area 21 is ensured to be stably connected to the first connecting boss 42. In addition, the deformation amplitude between the first connecting end 231 and the first side edge 211 can be further limited to avoid fatigue damage at the connection position between the first connecting end 231 and the first side edge 211.

[0137] In some embodiments, Figure 1-Figure 3 and Fig.11 As shown, the first stop boss 51 and the second stop boss 52 are arranged on the mounting seat 4, and the first stop boss 51 and the second stop boss 52 protrude toward the lens holder 3. In this embodiment, the first stop boss 51 and the second stop boss 52 are used to cooperate with the second surface 31 to limit the displacement of the lens holder 3. At the same time, the weight of the lens holder 3 is reduced.

[0138] In some embodiments, Figure 4-Figure 6 and Fig.12As shown, the second stop portion 12 further includes a third stop boss 53. The first stop boss 51 and the second stop boss 52 are arranged on the lens holder 3, and the first stop boss 51 and the second stop boss 52 protrude toward the mounting seat 4, and the third stop boss 53 is arranged on the mounting seat 4, and the third stop boss 53 protrudes toward the mounting seat 4 and corresponds to the second stop boss.

[0139] In this embodiment, the height of the second stop portion 12 is the sum of the heights of the second stop boss 52 and the third stop boss 53. Thus, the height difference between the second stop boss 52 and the third stop boss 53 is reduced, and the rotation radius of the lens holder 3 is reduced (e.g. Fig.13 ), thereby reducing the tilt angle of the lens mount 3.

[0140] Furthermore, the top edges of the first stop boss 51, the second stop boss 52 and the third stop boss 53 are provided with rounded corners. Fig.13 Taking the middle state II as an example, when the lens holder 3 is tilted, the lens holder 3 can roll along the rounded corner until the lens holder 3 abuts against the first stopper 11. Thus, the friction between the lens holder 3 and the second stopper 12 is reduced. Fig.13 Taking the middle state III as an example, when the lens holder 3 is tilted, the rounded corners provided on the second stop boss 52 can roll along the rounded corners provided on the third stop boss 53 , further reducing the wear of the stop structure 1 .

[0141] In some embodiments, Figure 15-17 As shown, the number of the first stopper 11 and the second stopper 12 are both multiple, and the first stopper 11 and the second stopper 12 form a stopper unit. The number of the elastic part 2 is multiple, and the elastic part 2 includes multiple elastic units corresponding to the multiple stopper units one by one, and the elastic unit includes a first connecting area 21, a second connecting area 22 and an elastic body 23, and the multiple elastic units are located on the side away from the multiple elastic parts 2. This embodiment uses multiple elastic units to cooperate with the corresponding multiple stopper units to limit the position in the circumferential direction of the lens at the same time, and further limit the movement of the lens holder 3 in all directions.

[0142] In some embodiments, Figure 7-Figure 10 As shown, there are two elastic parts 2. The two elastic parts 2 are arranged opposite to each other, and the elastic parts 2 include a connecting body 24, and two ends of the connecting body 24 are connected to two second connecting areas 22. Fig.15 and Fig.17 As shown, the elastic part 2 includes two elastic units, and the two first stoppers 11 corresponding to the same elastic part 2 are located on the side where the two elastic units are close to each other. Therefore, this embodiment limits the flipping range of the lens holder 3 along the arrangement direction of the two elastic parts 2, ensuring the consistency of the deformation of the two elastic parts 2.

[0143] In some embodiments, Figure 7 , Fig. 9 and Fig.13 As shown, the stop structure 1 further includes two third stop portions 13. The two third stop portions 13 are arranged on the lens holder 3 and / or the mounting seat 4, and the third stop portions 13 protrude toward the opposite sides of the lens holder 3 and the mounting seat 4, and the protrusion height of the third stop portions 13 is the same as that of the second stop portion 12. The two third stop portions 13 are respectively arranged corresponding to the two elastic portions 2, and the third stop portion 13 is located between the corresponding two first stop portions 11.

[0144] Alternatively, if Figure 7 and Fig.15 As shown, the top surface height of the two third stopper portions 13 is flush with the top surface height of the second stopper portion 12. Thus, the lens holder 3 is ensured to be in stable contact with the stopper structure 1, and the occurrence of tilting is reduced.

[0145] Further reference Figure 7 and Fig. 9 As shown, the stop structure 1 further includes two rotation limiting portions 14. The two rotation limiting portions 14 are respectively arranged corresponding to the two third stop portions 13, and the rotation limiting portions 14 are arranged on the lens holder 3 and / or the mounting seat 4 and protrude toward the opposite sides of the lens holder 3 and the mounting seat 4, and the side surfaces of the rotation limiting portions 14 are at least partially opposite to the side surfaces of the third stop portions 13. The rotation limiting portions 14 in this embodiment are used to cooperate with the third stop portions 13 to limit the rotation range of the lens holder 3.

[0146] Specifically, if Figure 7 As shown, two rotation limiting parts 14 are provided on the lens holder 3. When the first stopper 11 and the second stopper 12 abut against the lens holder 3 at the same time, the end surface of the rotation limiting part 14 is kept in a spaced state with the mounting seat 4. Thus, it is ensured that the side surface of the rotation limiting part 14 can abut against the side surface of the third stopper 13, so as to limit the rotation range of the lens holder 3.

[0147] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lens assembly, characterized in that: The lens assembly comprises: Mounting seat (4); Lens mount (3); The elastic part (2) comprises a first connection area (21), a second connection area (22) and an elastic body (23), wherein the elastic body (23) is connected between the first connection area (21) and the second connection area (22), the first connection area (21) is connected to the mounting seat (4), and the second connection area (22) is connected to the lens seat (3); and A stop structure (1) is arranged on the lens mount (3) and / or the mounting seat (4), the stop structure (1) comprising a first stop portion (11) and a second stop portion (12), the first stop portion (11) and the second stop portion (12) protruding toward opposite sides of the lens mount (3) and the mounting seat (4), and the first stop portion (11) and the second stop portion (12) are located on both sides of the elastic body (23).

2. The lens assembly according to claim 1, characterized in that: The protruding height of the second stop portion (12) is greater than the protruding height of the first stop portion (11), and the difference between the protruding heights of the second stop portion (12) and the first stop portion (11) is within a predetermined range.

3. The lens assembly according to claim 2, characterized in that: The difference between the protrusion heights of the second stopper (12) and the first stopper (11) is C, wherein 0mm﹤C≤0.0387mm.

4. The lens assembly according to claim 2, characterized in that: The lens mount (3) has a first contact position and a second contact position; At the first contact position, the lens seat (3) and the mounting seat (4) abut against each other via the second stopper (12), and the first stopper (11) and the lens seat (3) or the mounting seat (4) are in a spaced state; At the second contact position, the lens seat (3) and the mounting seat (4) abut against each other via the first stop portion (11) and the second stop portion (12).

5. The lens assembly according to claim 2, characterized in that: The elastic body (23) comprises a first connecting end (231) and a second connecting end (232), wherein the first connecting end (231) is connected to the first connecting area (21), and the second connecting end (232) is connected to the second connecting area (22); The first stop portion (11) is closer to the first connection end (231) relative to the second stop portion (12).

6. The lens assembly according to claim 5, characterized in that: The first connecting end (231) is connected to a side of the first connecting area (21) close to the first stopper (11); The second stop portion (12) is located on a side of the first connection area (21) away from the first stop portion (11), and the second connection area (22) is arranged adjacent to the second stop portion (12).

7. The lens assembly according to claim 2, characterized in that: The mounting seat (4) has a first surface (41), and a first connecting boss (42) is convexly provided on the first surface (41); The first connection area (21) is arranged on the surface of the first connection boss (42), and at least a portion of the elastic body (23) is arranged opposite to and spaced from the first surface (41).

8. The lens assembly according to claim 7, characterized in that: In the projection direction of the lens mount (3) onto the mounting seat (4), at least part of the first stop portion (11) and at least part of the second stop portion (12) overlap with the edge area of ​​the lens mount (3), and the first connection area (21) is offset from the lens mount (3).

9. The lens assembly according to claim 7, characterized in that: The lens mount (3) has a second surface (31), the second surface (31) faces the first surface (41), and a second connecting boss (32) is convexly provided on the second surface (31); The second connection area (22) is arranged on the surface of the second connection protrusion (32), and at least a portion of the elastic body (23) is arranged opposite to and spaced from the second surface (31).

10. The lens assembly according to claim 7, characterized in that: The first connection area (21) is a sheet-like structure, and the protrusion heights of the first stopper (11) and the second stopper (12) are greater than the thickness of the sheet-like structure; The elastic portion (2) is in a free state, and the first connection area (21) corresponds to a side surface of the first stop portion (11) and a side surface of the second stop portion (12).

11. The lens assembly according to claim 7, characterized in that: The elastic body (23) comprises a first connecting end (231) and a second connecting end (232), wherein the first connecting end (231) is connected to the first connecting area (21), and the second connecting end (232) is connected to the second connecting area (22); The first connection area (21) has a first side edge (211), the first side edge (211) is located on a side of the first connection area (21) close to the lens mount (3) and at an edge of the first connection boss (42), and the first connection end (231) is connected to the first side edge (211).

12. The lens assembly according to claim 11, characterized in that: The first side edge (211) comprises an avoidance section (212) and a connection section (213) in the length direction, the avoidance section (212) is located on the table surface of the first connection boss (42), and the connection section (213) is relative to the avoidance section (212), close to the edge of the first connection boss (42) and connected to the first connection end (231); The first stop portion (11) is arranged adjacent to the connecting section (213), and the second stop portion (12) is arranged adjacent to the avoiding section (212).

13. The lens assembly according to claim 11, characterized in that: The first stop portion (11) comprises a first stop boss (51), and the first stop boss (51) has a first stop surface (511); The second stop portion (12) comprises a second stop boss (52), and the second stop boss (52) has a second stop surface (521); The area of ​​the first stop surface (511) is greater than the area of ​​the second stop surface (521).

14. The lens assembly according to claim 13, characterized in that: A connecting straight line (6) between the first stop surface (511) and the second stop surface (521) on a side away from the lens mount (3) passes through the first connecting end (231) and is located on a side of the first side edge (211) close to the lens mount (3).

15. The lens assembly according to claim 13, wherein: The first stop boss (51) and the second stop boss (52) are arranged on the mounting seat (4), and the first stop boss (51) and the second stop boss (52) protrude toward the lens seat (3), and the surface edge of the second stop boss (52) is provided with a rounded corner.

16. The lens assembly according to claim 13, wherein: The second stop portion (12) further includes a third stop boss (53); The first stop boss (51) and the second stop boss (52) are arranged on the lens seat (3), and the first stop boss (51) and the second stop boss (52) protrude toward the mounting seat (4); the third stop boss (53) is arranged on the mounting seat (4), and the third stop boss (53) protrudes toward the mounting seat (4) and corresponds to the second stop boss; and the second stop boss (52) and / or the third stop boss (53) have their table edges rounded.

17. The lens assembly according to claim 1, wherein: The first stopper (11) and the second stopper (12) are both multiple in number, and the first stopper (11) and the second stopper (12) form a stopper unit; The elastic parts (2) are multiple in number, the elastic parts (2) include multiple elastic units corresponding one-to-one to the multiple stop units, the elastic units include the first connecting area (21), the second connecting area (22) and the elastic body (23), and the multiple elastic units are located on a side away from the multiple elastic parts (2).

18. The lens assembly according to claim 17, wherein: The number of the elastic parts (2) is two, the two elastic parts (2) are arranged opposite to each other, the elastic part (2) comprises a connecting body (24), and two ends of the connecting body (24) are connected to two second connecting areas (22); The elastic portion (2) comprises two elastic units, and the two first stop portions (11) corresponding to the same elastic portion (2) are located on a side where the two elastic units are close to each other.

19. The lens assembly according to claim 18, characterized in that: The stop structure (1) further comprises: Two third stop portions (13) are arranged on the lens seat (3) and / or the mounting seat (4), the third stop portions (13) protrude towards opposite sides of the lens seat (3) and the mounting seat (4), and the protruding height of the third stop portions (13) is the same as that of the second stop portions (12); The two third stop portions (13) are respectively arranged corresponding to the two elastic portions (2), and the third stop portion (13) is located between the corresponding two first stop portions (11).

20. The lens assembly according to claim 19, wherein: The stop structure (1) further comprises: Two rotation limiting portions (14) are respectively arranged corresponding to the two third stop portions (13); the rotation limiting portions (14) are arranged on the lens seat (3) and / or the mounting seat (4) and protrude toward opposite sides of the lens seat (3) and the mounting seat (4); and the side surfaces of the rotation limiting portions (14) are at least partially opposite to the side surfaces of the third stop portions (13).

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