Variable elliptical aperture assembly, variable diaphragm and camera module

Abstract

The utility model discloses a variable elliptical aperture assembly, a variable diaphragm and a camera module. The variable elliptical aperture assembly comprises a first bearing ring, a first moving ring, a plurality of first diaphragm sheets and a first clamping ring, wherein the ring bottom wall of the first bearing ring is provided with a first opening and a first linear guide part; the first movable ring is rotatably connected to the first bearing ring, and the first movable ring is provided with a second opening and a second linear guide part; the plurality of first diaphragms are arranged between the first bearing ring and the first moving ring along the circumferential direction of the first bearing ring to form an elliptical hole; the first diaphragm sheet is provided with a first clamping part which is movably matched with the first linear guide part and a second clamping part which is movably matched with the second linear guide part; the first clamping ring is detachably clamped to the ring side wall of the first bearing ring; and the first movable ring rotates relative to the first bearing ring to drive the first clamping part to move relative to the first linear guide part and drive the second clamping part to move relative to the second linear guide part, so that the area of the elliptical hole is changed.

Description

Technical Field

[0001] The present application relates to the technical field of variable elliptical aperture components, and in particular to a variable elliptical aperture component, a variable iris, and a camera module. Background Art

[0002] An iris diaphragm is an optical device used to change the aperture size in camera modules. By adjusting the opening and closing of the iris, the amount of light entering the camera module can be controlled. The iris diaphragm consists of multiple movable blades that rotate around a central axis to change the degree of overlap, thereby adjusting the aperture size.

[0003] The variable iris diaphragm in related art is typically a variable circular iris, which is only used in scenarios where a circular aperture is variable, and its application scenarios are relatively limited. To meet different application scenarios, some variable irises include two sets of iris blades, one set of which forms a variable circular aperture, and the other set of which forms a variable elliptical aperture. This can meet different application scenarios. However, the two sets of iris blades in this variable iris are relatively complex in structure and costly. Utility Model Content

[0004] The embodiments of the present application provide a variable elliptical aperture assembly, a variable iris, and a camera module, which are used to solve the problems of complex variable iris structure and high cost in related technologies.

[0005] In the first aspect, an embodiment of the present application provides a variable elliptical aperture assembly for a variable aperture, the variable elliptical aperture assembly comprising a first carrying ring, a first movable ring, a plurality of first aperture pieces and a first retaining ring, the first carrying ring comprising a ring bottom wall and a ring side wall arranged around the edge of the ring bottom wall, the ring bottom wall being provided with a first opening and a first linear guide; the first movable ring is rotatably connected to the first carrying ring, the first movable ring being provided with a second opening and a second linear guide; the aperture piece is connected between the first carrying ring and the first movable ring, and a plurality of the first aperture pieces are arranged along the circumference of the first carrying ring to form an elliptical hole; the first aperture piece is provided with a first clamping portion on one side in the thickness direction for movably cooperating with the first linear guide, and a second clamping portion on the other side of the first aperture piece for movably cooperating with the second linear guide; the first retaining ring is detachably clamped to the ring side wall, and the first retaining ring is located on the side of the first movable ring away from the first aperture piece; the first movable ring rotates relative to the first carrying ring, driving the first clamping portion to move relative to the first linear guide, and the second clamping portion to move relative to the second linear guide to change the area of the elliptical hole.

[0006] In some embodiments, the first aperture piece has a first side and a second side relative to each other along a first direction, the second side has the same bending direction as the first side, and the second sides of a plurality of the first aperture pieces are arranged relative to each other to form the elliptical hole.

[0007] In some embodiments, the number of the first aperture blades is 2, and the two first aperture blades are symmetrically arranged with respect to a second direction, and the second direction is perpendicular to the first direction.

[0008] In some embodiments, the first aperture piece has a first side and a second side that are opposite to each other along the first direction; the number of the first clipping parts is 2, and the two first clipping parts are arranged at both ends of the first aperture piece in a direction perpendicular to the first direction; the orthographic projection of the second clipping part on the first aperture piece is located between the orthographic projections of the two first clipping parts on the first aperture piece.

[0009] In some embodiments, when the area of the elliptical hole is maximum, its orthographic projection on the ring bottom wall is within the first opening.

[0010] In some embodiments, when the area of the elliptical hole is maximum, its orthographic projection on the first dynamic ring is within the second opening.

[0011] In some embodiments, the first linear guide portion is a linear guide groove, and the second linear guide portion is an arc guide groove; the first clamping portion is a columnar structure, and the second clamping portion is a columnar structure.

[0012] In some embodiments, the first movable ring is provided with a first handle, and the side wall of the ring is provided with a first limiting groove for the first handle to extend out of the first bearing ring, the first limiting groove extends along the circumference of the first bearing ring, and the first avoidance groove along the circumferential groove side wall of the first bearing ring limits the rotation angle of the first handle in the first avoidance groove.

[0013] In some embodiments, a first avoidance groove is formed on the side wall of the ring, a protrusion is formed on the first clamping ring, and the first avoidance groove is engaged with the protrusion.

[0014] The variable elliptical aperture assembly provided in the embodiment of the present application drives the movement of the plurality of first aperture blades through the rotation of the first movable ring, thereby changing the area of the elliptical aperture formed by the plurality of first aperture blades. The variable elliptical aperture assembly achieves the purpose of a variable elliptical aperture. At the same time, the first aperture blades are directly and movably connected to the first supporting ring and the first movable ring, thereby simplifying the structure of the variable elliptical aperture assembly and reducing the manufacturing cost. When the variable aperture needs to have the functions of a variable circular aperture and a variable elliptical aperture at the same time, there is no need to redesign the structure of a variable aperture. On the basis of the variable aperture that can realize a variable circular aperture in the related art, the variable elliptical aperture assembly can be used to achieve the adjustment and conversion of the variable circular aperture and the variable elliptical aperture. This not only meets a variety of application scenarios, but also has a simple structure and low modification cost.

[0015] In a second aspect, an embodiment of the present application further provides a variable aperture, comprising the variable elliptical aperture assembly described in the first aspect.

[0016] In some embodiments, the variable aperture also includes a variable circular aperture assembly; the variable circular aperture assembly includes a second carrying ring, a second movable ring and a plurality of second aperture pieces movably connected between the second carrying ring and the second movable ring; the plurality of second aperture pieces are arranged circumferentially along the second carrying ring to form a circular hole; the second movable ring rotates relative to the second carrying ring, driving the second aperture pieces to move relative to the second carrying ring to change the area of the circular hole.

[0017] In a third aspect, an embodiment of the present application further provides a camera module comprising an optical lens and a variable aperture as described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 Schematic diagram of the assembly structure of the variable aperture in some embodiments of the present application;

[0020] Figure 2 for Figure 1 Partial exploded view of the variable aperture;

[0021] Figure 3 Schematic diagram of the structure of a variable elliptical aperture assembly in some embodiments of the present application;

[0022] Figure 4 for Figure 3Exploded view of the variable elliptical aperture assembly in the;

[0023] Figure 5 for Figure 3 Schematic diagram of the assembly structure of the first carrying ring and the first aperture piece at one viewing angle;

[0024] Figure 6 for Figure 3 A schematic diagram of the assembly structure of the first carrying ring and the first aperture piece in another viewing angle;

[0025] Figure 7 for Figure 2 Exploded view of the variable circular aperture assembly in the;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the variable aperture in the first position;

[0027] Figure 9 for Figure 1 Schematic diagram of the structure of the variable aperture in the second position;

[0028] Figure 10 for Figure 1 Schematic diagram of the structure when the variable aperture is in the third position.

[0029] Description of reference numerals:

[0030] 10, variable elliptical aperture assembly; 100, elliptical hole; 20, variable circular aperture assembly; 200, circular hole;

[0031] 1. First carrying ring; 101. Ring bottom wall; 102. Ring side wall; 11. First opening; 12. First linear guide; 13. First limiting groove; 14. First avoidance groove;

[0032] 2. First moving ring; 21. Second opening; 22. Second linear guide; 23. First handle;

[0033] 3. First aperture piece; 301. First side edge; 302. Second side edge; 31. First clamping portion; 32. Second clamping portion;

[0034] 4. First clasp; 41. Protrusion;

[0035] 5. Second carrying ring; 51. Third opening; 52. Mounting hole; 53. Second limiting groove; 54. Second avoidance groove;

[0036] 6. Second moving ring; 61. Fourth opening; 62. Linear groove; 63. Second handle;

[0037] 7. Second aperture blade; 71. First pin; 72. Second pin;

[0038] 8. Second clasp; 81. Protrusion. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0043] An iris diaphragm is an optical device used to change the aperture size in camera modules. By adjusting the opening and closing of the iris, the amount of light entering the camera module can be controlled. The iris diaphragm consists of multiple movable blades that rotate around a central axis to change the degree of overlap, thereby adjusting the aperture size.

[0044] The variable iris diaphragm in related art is typically a variable circular iris, which is only used in scenarios where a circular aperture is variable, and its application scenarios are relatively limited. To meet different application scenarios, some variable irises include two sets of iris blades, one set of which forms a variable circular aperture, and the other set of which forms a variable elliptical aperture, so as to meet different application scenarios. However, this variable iris is an integrated structure, and the connection structure between the two sets of iris blades, the carrier ring, and multiple dynamic rings is relatively complex, resulting in high production costs and relatively limited application scenarios.

[0045] like Figure 1 、 Figure 3 and Figure 4 As shown, an embodiment of the present application provides a variable aperture, which includes a variable elliptical aperture assembly 10. The variable elliptical aperture assembly 10 includes a first supporting ring 1, a first movable ring 2, a plurality of first aperture pieces 3 and a first retaining ring 4. The first supporting ring 1 includes a ring bottom wall 101 and a ring side wall 102 arranged around the edge of the ring bottom wall 101. The ring bottom wall 101 is provided with a first opening 11 and a first linear guide portion 12. The first movable ring 2 is rotatably connected to the first supporting ring 1. The first movable ring 2 is provided with a second opening 21 and a second linear guide portion 22. The aperture piece is connected between the first supporting ring 1 and the first movable ring 2. The plurality of first aperture pieces 3 are arranged along the circumference of the first supporting ring 1 to form an elliptical hole 1. 00; The first aperture piece 3 is provided with a first clamping portion 31 on one side in the thickness direction, which is movably engaged with the first linear guide portion 12, and the other side of the first aperture piece 3 is provided with a second clamping portion 32 which is movably engaged with the second linear guide portion 22; the first clamping ring 4 is detachably clamped to the ring side wall 102, and the first clamping ring 4 is located on the side of the first movable ring 2 away from the first aperture piece 3; the first movable ring 2 rotates relative to the first supporting ring 1, driving the first clamping portion 31 to move relative to the first linear guide portion 12, and the second clamping portion 32 to move relative to the second linear guide portion 22, so as to change the area of the elliptical hole 100.

[0046] The first movable ring 2 rotates relative to the first carrier ring 1 , which means that the first movable ring 2 is parallel to the ring bottom wall 101 of the first carrier ring 1 , and the first movable ring 2 rotates relative to the first carrier ring 1 along the optical axis of the variable elliptical aperture assembly 10 .

[0047] The above-mentioned elliptical hole 100 includes a hole whose outline is elliptical, and also includes a hole whose outline is approximately elliptical, that is, an ellipse in a geometric sense.

[0048] The rotation of the first movable ring 2 drives the movement of the plurality of first aperture blades 3, thereby changing the area of the elliptical aperture 100 formed by the plurality of first aperture blades 3. The variable elliptical aperture assembly 10 achieves the purpose of a variable elliptical aperture 100. Furthermore, the first aperture blades 3 are directly and movably connected to the first carrier ring 1 and the first movable ring 2, thereby simplifying the structure of the variable elliptical aperture assembly 10 and reducing the manufacturing cost. The first retaining ring 4 is detachably engaged with the side of the first movable ring 2 away from the first aperture blades 3, limiting the distance that the first movable ring 2 can move relative to the first carrier ring 1 in the direction of the optical axis of the variable elliptical aperture assembly 10, thereby facilitating the assembly and disassembly of the variable elliptical aperture assembly 10 while maintaining a secure connection.

[0049] When the variable aperture needs to have the functions of the variable circular aperture 200 and the variable elliptical aperture 100 at the same time, there is no need to redesign the structure of a variable aperture. On the basis of the variable aperture of the variable circular aperture 200 that can be realized in the relevant technology, the variable elliptical aperture assembly 10 can be matched to realize the adjustment and conversion of the variable circular aperture 200 and the variable elliptical aperture 100, which can not only meet a variety of application scenarios but also has a simple structure and low modification cost.

[0050] It should be noted that the variable elliptical aperture assembly 10 can be used independently as a variable aperture product with a variable elliptical aperture 100 in a camera module. The variable elliptical aperture assembly 10 can also be combined with a variable circular aperture assembly 20 having a variable circular aperture 200 within the variable aperture to form a variable aperture product with the variable elliptical aperture 100 and the variable circular aperture 200 being interchangeable. In other words, the variable elliptical aperture assembly 10 and the variable circular aperture assembly 20 can be located within the same lens position or a group of lenses within the camera module, or they can be located separately within different lens positions within the camera module. This allows for a wider range of applications compared to a single-piece variable aperture structure. The structure of the variable circular aperture assembly 20 within the variable aperture will be described in detail later.

[0051] like Figure 5 and Figure 6 As shown, in some embodiments, the first linear guide portion 12 is a linear guide groove, and the second linear guide portion 22 is an arc guide groove; the first clamping portion 31 is a columnar structure, and the second clamping portion 32 is a columnar structure.

[0052] By adopting a columnar structure for both the first clamping portion 31 and the second clamping portion 32 on the first aperture piece 3, not only can the first aperture piece 3 be movable and fitted relative to the first carrying ring 1, but it can also be movable and fitted relative to the first movable ring 2, thereby converting the rotation of the first movable ring 2 relative to the first carrying ring 1 into the relative movement of the first aperture piece 3 relative to the first carrying ring 1, but it is also beneficial to improve the connection reliability between the first aperture piece 3 and the first carrying ring 1 and the first movable ring 2.

[0053] like Figure 5 As shown, in some embodiments, the first aperture piece 3 has a relative first side 301 and a second side 302 along the first direction (the short axis direction of the elliptical hole 100), and the second side 302 has the same bending direction as the first side 301; the number of the first aperture pieces 3 is 2, and the second sides 302 of the two first aperture pieces 3 are symmetrically arranged relative to the second direction (the long axis direction of the elliptical hole 100), and the two first aperture pieces 3 form the elliptical hole 100, and the second direction is perpendicular to the first direction.

[0054] The aforementioned bending direction merely indicates that the first side 301 and the second side 302 bend toward the same side, but does not limit the curvature of the first side 301 and the second side 302. Typically, the first side 301 is an arc-shaped outer side, typically having a radius equal to or similar to the outer contour of the first carrier ring 1; the second side 302 forms the inner side of the elliptical hole, and the curvature of the second side 302 can be determined based on the size of the elliptical hole 100.

[0055] By using the second side edges 302 of two first aperture pieces 3 to form an elliptical hole 100, not only is the structure between the first aperture piece 3 and the first carrying ring 1 and the first movable ring 2 simplified, the assembly process of the first aperture piece 3 and the first carrying ring 1 and the first movable ring 2 is simplified, but also the cost of the variable elliptical aperture assembly 10 is reduced.

[0056] It should be noted that, in addition to being two, the number of the first aperture blades 3 may also be other numbers greater than two, such as four, six, etc., which can be arranged to form the elliptical hole 100 , and is not specifically limited here.

[0057] like Figure 5 As shown, in some embodiments, the number of the first clamping portions 31 is two, and the two first clamping portions 31 are arranged at both ends of the first aperture piece 3 in a direction perpendicular to the first direction; the second clamping portion 32 is located between the orthographic projections of the two first clamping portions 31 on the first aperture piece 3.

[0058] like Figure 6 As shown, in some embodiments, when the area of the elliptical hole 100 is the largest, its orthographic projection on the ring bottom wall 101 is within the first opening 11 .

[0059] Through the above arrangement, the second opening 21 on the first carrying ring 1 will not block the elliptical hole 100 , thereby facilitating improvement in the stability of light passing through the elliptical hole 100 .

[0060] like Figure 3 As shown, in some embodiments, when the area of the elliptical hole 100 is the largest, its orthographic projection on the first dynamic ring 2 is within the second opening 21 .

[0061] Through the above arrangement, during the rotation of the first moving ring 2 , the second opening 21 on the first moving ring 2 will not block the elliptical hole 100 , thereby further improving the stability of light passing through the elliptical hole 100 .

[0062] like Figure 3 and Figure 4 As shown, in some embodiments, the first movable ring 2 is provided with a first handle 23, and the ring side wall 102 is provided with a first limiting groove 13 for the first handle 23 to extend out of the first bearing ring 1, and the first limiting groove 13 extends along the circumference of the first bearing ring 1, and the first avoidance groove 14 along the circumferential groove side wall of the first bearing ring 1 limits the rotation angle of the first handle 23 in the first avoidance groove 14.

[0063] By arranging the first handle 23 on the first movable ring 2, the first movable ring 2 can be easily rotated relative to the first supporting ring 1, thereby facilitating connection with the driving mechanism that drives the first movable ring 2 to rotate. Moreover, the groove side wall of the first avoidance groove 14 along the circumference of the first supporting ring 1 limits the rotation angle of the first handle 23 in the first avoidance groove 14, thereby reducing the risk of damage to the first aperture plate 3 caused by excessive rotation of the first movable ring 2, thereby improving the reliability of the variable elliptical aperture assembly 10.

[0064] The first movable ring 2 and the first handle 23 may be an integral structure, thereby reducing the number of parts, simplifying the assembly process, and improving the reliability of the first movable ring 2.

[0065] like Figure 3 and Figure 4 As shown, in some embodiments, the ring side wall 102 is provided with a first avoidance groove 14 , the first clamping ring 4 is provided with a protrusion 41 , and the first avoidance groove 14 is engaged with the protrusion 41 .

[0066] By forming the first avoidance groove 14 in the ring sidewall 102 , the first avoidance groove 14 along the circumferential groove sidewall of the first supporting ring 1 can limit the rotation of the protrusion 41 , thereby fixing the first clamping ring 4 and the first supporting ring 1 relatively.

[0067] like Figure 1 、 Figure 2 、 Figure 4 and Figure 7 As shown, an embodiment of the present application also provides a variable aperture, including a variable elliptical aperture assembly 10 and a variable circular aperture assembly 20; the variable circular aperture assembly 20 includes a second carrying ring 5, a second movable ring 6 and a plurality of second aperture pieces 7 movably connected between the second carrying ring 5 and the second movable ring 6; the plurality of second aperture pieces 7 are arranged circumferentially along the second carrying ring 5 to form a circular hole 200; the second movable ring 6 rotates relative to the second carrying ring 5, driving the second aperture pieces 7 to move relative to the second carrying ring 5 to change the area of the circular hole 200.

[0068] The variable iris mentioned above refers to a variable circular aperture assembly 20 having a variable circular aperture 200 , which is combined to form a variable iris product having a variable elliptical aperture 100 and a variable circular aperture 200 that can be converted into each other.

[0069] like Figure 7 As shown, the second carrier ring 5 has a third opening 51 and a mounting hole. The second carrier ring 5 is also provided with a second retaining ring 8. The second movable ring 6 has a fourth opening 61 and a linear groove. A plurality of second aperture blades 7 are arranged between the second carrier ring 5 and the second movable ring 6 to form a circular aperture 200. A first pin is provided on one side of the thickness direction of the second aperture blade 7 for rotationally engaging with the mounting hole, and a second pin is provided on the other side of the second aperture blade 7 for movement engaging with the linear groove. The rotation of the second movable ring 6 drives the plurality of second aperture blades 7 to move, changing the area of the circular aperture 200 formed by the plurality of second aperture blades 7. This allows the variable iris assembly 20 to achieve the variable circular aperture 200, while the variable elliptical aperture assembly 10 achieves the variable elliptical aperture 100.

[0070] The second retaining ring 8 is detachably connected to the side of the second movable ring 6 away from the second aperture piece 7, limiting the distance that the second movable ring 6 can move relative to the second carrying ring 5 in the optical axis direction of the variable aperture, thereby making the variable circular aperture assembly 20 easy to disassemble and assemble while being firmly connected.

[0071] It should be noted that the circular hole 200 includes a circular outline in a geometric sense, and also includes a circular outline in a non-geometric sense, such as a regular polygon. When the number of second aperture blades 7 increases, the outline of the circular hole 200 is closer to a circular outline in a geometric sense.

[0072] For example, Figure 7 As shown, the number of the second aperture blades 7 is 7. Of course, the number of the second aperture blades 7 can also be other numbers greater than 7 or less than 7, which is not specifically limited here.

[0073] like Figures 8 to 10 As shown, in some embodiments, when the area of the circular hole 200 is the largest, its orthographic projection on the bottom wall of the second carrying ring 5 is within the third opening 51 , and its orthographic projection on the second dynamic ring 6 is within the fourth opening 61 .

[0074] The above arrangement reduces the blocking effect of the third opening 51 on the second carrying ring 5 and the fourth opening 61 on the second dynamic ring 6 on the circular hole 200 , thereby facilitating the improvement of the stability of light passing through the circular hole 200 .

[0075] like Figure 7As shown, in some embodiments, the second movable ring 6 is provided with a second handle 63, and the side wall of the second bearing ring 5 is provided with a second limiting groove 53 for the second handle 63 to extend out of the second bearing ring 5. The second limiting groove 53 extends along the circumference of the second bearing ring 5, and the second avoidance groove 54 along the circumferential groove side wall of the second bearing ring 5 limits the angle of rotation of the second handle in the first avoidance groove 14.

[0076] By arranging a second handle 63 on the second movable ring 6, the second movable ring 6 can be easily rotated relative to the second supporting ring 5, thereby facilitating connection with the driving mechanism that drives the second movable ring 6 to rotate. Moreover, the second avoidance groove 54 along the circumferential groove side wall of the second supporting ring 5 limits the rotation angle of the second handle 63 in the second avoidance groove 54, thereby reducing the risk of damage to the second aperture plate 7 caused by excessive rotation of the second movable ring 6, thereby improving the reliability of the variable circular aperture assembly 20.

[0077] The second movable ring 6 is detachably connected to the second handle 63. In this way, the structure of the second handle 63 can be determined according to the structure of the driving mechanism that drives the second movable ring 6 to rotate, thereby reducing the mutual influence between the structures of the second movable ring 6 and the second handle 63.

[0078] like Figure 7 As shown, in some embodiments, a second avoidance groove 54 is formed on the side wall of the second carrying ring 5 , a protrusion 81 is formed on the second clamping ring 8 , and the first avoidance groove 14 is engaged with the protrusion 81 .

[0079] By forming a second avoidance groove 54 on the side wall of the second supporting ring 5 , the second avoidance groove 54 along the circumferential groove side wall of the second supporting ring 5 can limit the rotation of the protrusion 81 , thereby fixing the second clamping ring 8 and the second supporting ring 5 relatively.

[0080] The first moving ring 2 and the second moving ring 6 in the variable aperture can be operated simultaneously. Figures 8 to 10 The shapes of the elliptical hole 100 and the circular hole 200 are shown when the first movable ring 2 and the second movable ring 6 are rotated simultaneously. Of course, the first movable ring 2 and the second movable ring 6 can also be rotated separately to adjust the areas of the elliptical hole 100 and the circular hole 200.

[0081] Some embodiments of the present application also provide a camera module, including a variable aperture and an optical lens.

[0082] The optical lens comprises a plurality of lenses. The structure of the optical lens may be the same as or different from that of the optical lens in the above embodiment, and is not specifically limited here.

[0083] The structure and effect of the variable iris are the same as those of the variable iris in the above embodiment, and will not be described in detail here.

[0084] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0085] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A variable elliptical aperture assembly for a variable iris, characterized in that: The variable elliptical aperture assembly comprises: A first supporting ring (1) comprises a ring bottom wall (101) and a ring side wall (102) arranged around the edge of the ring bottom wall (101), wherein the ring bottom wall (101) is provided with a first opening (11) and a first linear guide portion (12); A first movable ring (2) is rotatably connected to the first supporting ring (1), and the first movable ring (2) is provided with a second opening (21) and a second linear guide portion (22); A plurality of first aperture pieces (3), the first aperture pieces (3) being connected between the first carrying ring (1) and the first movable ring (2), and the plurality of first aperture pieces (3) being arranged along the circumference of the first carrying ring (1) to form an elliptical hole (100); a first clamping portion (31) being provided on one side in the thickness direction of the first aperture piece (3) for movably cooperating with the first linear guide portion (12), and a second clamping portion (32) being provided on the other side of the first aperture piece (3) for movably cooperating with the second linear guide portion (22); a first retaining ring (4) detachably engaged with the ring side wall (102), the first retaining ring (4) being located on a side of the first movable ring (2) away from the first aperture plate (3); The first movable ring (2) rotates relative to the first bearing ring (1), driving the first clamping portion (31) to move relative to the first linear guide portion (12), and the second clamping portion (32) to move relative to the second linear guide portion (22), so as to change the area of the elliptical hole (100).

2. The variable elliptical aperture assembly according to claim 1, characterized in that: The first aperture piece (3) has a first side and a second side opposite to each other along a first direction, the second side having the same bending direction as the first side, and the second sides of a plurality of the first aperture pieces (3) are arranged opposite to each other to form the elliptical hole (100).

3. The variable elliptical aperture assembly according to claim 2, characterized in that: The number of the first aperture pieces (3) is two, and the two first aperture pieces (3) are symmetrically arranged relative to a second direction, and the second direction is perpendicular to the first direction.

4. The variable elliptical aperture assembly according to any one of claims 1 to 3, characterized in that: The first aperture plate (3) has a first side edge and a second side edge that are opposite to each other along a first direction; The number of the first clamping parts (31) is two, and the two first clamping parts (31) are arranged at two ends of the first aperture piece (3) in a direction perpendicular to the first direction; The orthographic projection of the second clamping portion (32) on the first aperture piece (3) is located between the orthographic projections of the two first clamping portions (31) on the first aperture piece (3).

5. The variable elliptical aperture assembly according to any one of claims 1 to 3, characterized in that: When the area of the elliptical hole is the largest, its orthographic projection on the ring bottom wall (101) is within the first opening (11); And / or, when the area of the elliptical hole is the largest, its orthographic projection on the first moving ring (2) is within the second opening (21).

6. The variable elliptical aperture assembly according to any one of claims 1 to 3, characterized in that: The first linear guide portion (12) is a linear guide groove, and the second linear guide portion (22) is an arc guide groove; The first clamping portion (31) is a columnar structure, and the second clamping portion is a columnar structure.

7. The variable elliptical aperture assembly according to any one of claims 1 to 3, characterized in that: The first movable ring (2) is provided with a first handle (23), and the ring side wall (102) is provided with a first limiting groove (13) for the first handle (23) to extend out of the first bearing ring (1), and the first limiting groove (13) extends along the circumference of the first bearing ring (1), and the first limiting groove (13) along the circumferential groove side wall of the first bearing ring (1) limits the rotation angle of the first handle (23) in the first limiting groove (13).

8. The variable elliptical aperture assembly according to any one of claims 1 to 3, characterized in that: The ring side wall (102) is provided with a first avoidance groove (14), the first clamping ring (4) is provided with a protrusion (41), and the first avoidance groove (14) is engaged with the protrusion (41).

9. A variable aperture, characterized in that: include: The variable elliptical aperture assembly (10) according to any one of claims 1 to 8.

10. The variable aperture according to claim 9, characterized in that: Also included is a variable circular aperture assembly (20); The variable circular aperture assembly (20) comprises a second carrying ring (5), a second movable ring (6), and a plurality of second aperture blades (7) movably connected between the second carrying ring (5) and the second movable ring (6); the plurality of second aperture blades (7) are arranged along the circumference of the second carrying ring (5) to form a circular hole (200); The second movable ring (6) rotates relative to the second supporting ring (5), driving the second aperture piece (7) to move, thereby changing the area of the circular hole (200).

11. A camera module, characterized in that: include: An optical lens and a variable aperture as claimed in claim 9 or 10.

Images