TWI770672B - Aperture assembly - Google Patents

Abstract

The present application provides an aperture assembly. The aperture assembly is used in an optical lens system. The aperture assembly includes a plate including a transparent portion and a non-transparent portion. The transparent portion is configured to define an aperture of the optical lens system, wherein the contour of the transparent portion has a non-circular shape. The aperture assembly can prevent the size of the aperture from being reduced as the size of the plate is reduced in a case that a circular aperture is applied to the plate. The present application also realizes an aperture adjustment for a non-circular aperture.

Description

Aperture assembly

The present application relates to optical technology, in particular to an aperture assembly.

Today's electronic devices (such as mobile phones and tablet computers) are developing towards thinness and miniaturization, and the imaging devices (such as camera lenses) they are equipped with also need to be adjusted in size accordingly. The aperture size, size, and thickness also need to be reduced, which makes it difficult for large-aperture camera lenses to be applied to thin and light electronic devices.

As the size of the camera lens shrinks, the components in the camera lens also need to be resized accordingly. In particular, as shown in FIG. 1 , the reduction in size of the plate 12 used to define the aperture aperture will also affect the size of the aperture aperture. , from the original large-area aperture A to a small-area aperture B, resulting in the inability to meet the needs of a large aperture, which also limits the lens design. Therefore, it is a difficult problem in the technical field to configure a camera lens with a large aperture on a thin and light electronic device.

In addition, due to the thinness requirement of electronic devices, it is a challenge to configure the aperture adjustment structure on the body of the electronic device. However, the adjustable aperture function can change the depth of field and improve the quality of the photos taken, which is a very practical function. Therefore, how to realize the function of adjusting the aperture in the electronic device with the camera lens itself is the direction that the technical field can make further efforts.

An object of the present application is to provide an aperture assembly to avoid the lack of the circular aperture being reduced when the size of the plate is reduced.

An object of the present application is to provide an aperture assembly to realize aperture adjustment of a non-circular aperture aperture, which has both the functions of a large aperture and a variable aperture under a thin and miniaturized design.

In order to achieve the above object, the present application provides an aperture assembly for use in an optical lens system. The aperture assembly includes: a plate including a light-transmitting portion and a non-light-transmitting portion, and the light-transmitting portion is used to define the optical lens system. The aperture aperture of the aperture, wherein the outline of the light-transmitting portion has a non-circular shape; and a first aperture sheet and a second aperture sheet are arranged on the plate, wherein when the first aperture sheet moves along a first direction, When the second aperture plate moves in a second direction, the aperture aperture of the optical lens system is changed, so that the optical lens system has a first aperture aperture; when the first aperture plate moves in the second direction, the first aperture plate is moved in the second direction. When the two aperture plates move along the first direction, the aperture aperture of the optical lens system is changed, so that the optical lens system has a second aperture aperture, and the first aperture aperture is different from the second aperture aperture.

In the aperture assembly of the present application, the outline of the light-transmitting portion includes a first cut edge, a first arc edge connected to the first cut edge, and a second cut edge and a first cut edge connected to the second cut edge Two arc edges, the second trimming edge is set relative to the first trimming edge, and the second arc edge is set relative to the first arc edge.

In the aperture assembly of the present application, the lengths of the first cut edge and the second cut edge are equal, and the curvature radii of the first arc edge and the second arc edge are the same.

In the aperture assembly of the present application, the first direction and the second direction are directions that are inclined, parallel or perpendicular to the first cut edge or the second cut edge.

In the aperture assembly of the present application, the aperture assembly further comprises: a rotating member, a first force applying member and a second force applying member are arranged on the rotating member, wherein a first force receiving member is arranged on the first aperture plate, The first force-applying piece of the rotating piece is adapted to the first force-receiving piece, and the first force-applying piece applies force to the first aperture plate along with the rotation of the rotating piece, so as to move the first aperture plate , and the second aperture plate is provided with a second force-bearing member, the second force-applying member of the rotating member is adapted to the second force-bearing member, and the second force-applying member is rotated along with the rotation of the rotating member. The second aperture plate exerts a force to move the second aperture plate; and a base with a stopper on the base, wherein the first aperture plate has a first stop structure, the second aperture There is a second limit structure on the plate, and the limit piece of the base is adapted to the first limit structure and the second limit structure, and is used to guide the movement of the first aperture plate and the second aperture plate .

In the aperture assembly of the present application, the first force applying member and the second force applying member of the rotating member are located at relative positions in the radial direction, the first limiting structure of the first aperture plate and the second limiting structure of the second aperture plate A bit structure extends along the first direction and the second direction.

In the aperture assembly of the present application, the plate is provided with a first limiting groove and a second limiting groove, and the first force-applying member of the rotating member passes through the first limiting groove on the plate, and the rotating member The second force-applying piece is penetrated through the second limiting slot on the plate, the first limiting slot is used to limit the movement of the first force-applying piece of the rotating piece, and the first limiting slot is arc-shaped, Corresponding to the movement track of the first force application member; the second limit groove is used to limit the movement of the second force application member of the rotating member, and the second limit groove is arc-shaped, corresponding to the second force application member. movement track.

In the aperture assembly of the present application, the first force applying member and the second force applying member of the rotating member are the first protrusion and the second protrusion respectively, the first force receiving member on the first aperture plate and the second aperture The second force-receiving members on the plate are respectively a first force-receiving hole and a second force-receiving hole, the first protrusion of the rotating member is penetrated through the first force-bearing hole of the first aperture plate, and the second force-bearing hole of the rotating member is The protrusion passes through the second force-receiving hole of the second aperture plate, the limiting member on the base is a limiting protrusion, the first limiting structure of the first aperture sheet and the first limiting structure on the second aperture sheet The two limiting structures are a first limiting hole and a second limiting hole respectively, and the limiting protrusion passes through the first limiting hole of the first aperture sheet and the second limiting hole of the second aperture sheet, The first aperture sheet and the second aperture sheet are aperture blades stacked on the plate in sequence.

In the aperture assembly of the present application, the first force-receiving member of the first aperture plate and the second force-receiving member of the second aperture plate are a first force-receiving hole and a second force-receiving hole, respectively, and the first aperture plate is provided with There is a first through-hole, the second aperture plate is provided with a second through-hole, and the first force-applying member of the rotating member passes through the first force-receiving hole of the first aperture plate and the second aperture plate The second receiving through hole of the rotating member passes through the first receiving through hole of the first aperture plate and the second force receiving hole of the second diaphragm, and the first receiving through hole is used for When the second urging member of the rotating member applies force to the second aperture plate, it does not interfere with the first aperture plate, and the second through hole is used for the first urging member of the rotating member to apply force to the second aperture plate. When the first aperture plate exerts force, it does not interfere with the second aperture plate.

In the aperture assembly of the present application, the aperture assembly further includes a third aperture sheet and a fourth aperture sheet, which are stacked with the plate, the first aperture sheet and the second aperture sheet, wherein the third aperture sheet and the fourth aperture plate are allowed to move in a third direction and a fourth direction, respectively, and the third aperture plate and the fourth aperture plate are also allowed to move in the fourth direction and the third direction, respectively.

In the aperture assembly of the present application, the aperture assembly further comprises: a rotating member, and a first force applying member, a second force applying member, a third force applying member and a fourth force applying member are arranged on the rotating member, The first aperture plate is provided with a first force-receiving member, the first force-applying member of the rotating member is adapted to the first force-receiving member, and the first force-applying member drives the first aperture plate along the first direction move; a second force-receiving member is provided on the second aperture plate, the second force-applying member of the rotating member is adapted to the second force-receiving member, and the second force-applying member drives the second aperture plate along the second force-receiving member The third aperture plate is provided with a third force-receiving member, the third force-applying member of the rotating member is adapted to the third force-receiving member, and the third force-applying member drives the third aperture plate along the Movement in three directions; a fourth force-receiving member is arranged on the fourth aperture plate, the fourth force-applying member of the rotating member is adapted to the fourth force-receiving member, and the fourth force-applying member drives the fourth aperture plate along the Moving in a fourth direction, wherein the first direction and the second direction correspond to a vertical direction, and the third direction and the fourth direction correspond to a horizontal direction.

In the aperture assembly of the present application, the aperture assembly further includes a driving unit, the driving unit is a motor, the motor has a rotatable shaft, and the rotating member is fixed on the shaft of the motor and rotates with the shaft.

In the aperture assembly of the present application, the aperture assembly further includes a drive unit, the drive unit includes a drive base, a shaft, a magnet and a coil, the magnet is arranged opposite the coil, and the shaft is arranged on the drive base, The rotating member and the shaft are connected to each other.

In the aperture assembly of the present application, the light-transmitting portion of the plate used to define the aperture aperture of the optical lens system has a non-circular profile, so it is possible to avoid the loss that the aperture aperture of the circular aperture is also reduced when the size of the plate is reduced, The configuration of the large-aperture imaging module can be realized on thin or small electronic devices, so as to achieve the effect of large-aperture shooting. Furthermore, in the embodiment of the present application, a pair of aperture plates is used, one of which moves in the first direction, and the other one moves in the second direction, thereby changing the aperture aperture and realizing the aperture with a non-circular aperture aperture. Adjustment. Furthermore, multiple pairs of aperture plates can also be combined, and each pair of aperture plates moves in different directions to realize the adjustment of multi-segment apertures, so that the optical lens system has multi-segment variable apertures.

In order to make the objectives, technical solutions and effects of the present application clearer and clearer, the present application will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application, and the word "embodiment" used in the specification of the present application is intended to be used as an example, example or illustration, and is not used to limit the present application. In addition, as used in this specification and the appended claims, the article "a" can generally be construed to mean "one or more" unless specified otherwise or clear from the context in the singular form. Also, in the accompanying drawings, elements that are structurally or functionally similar or identical are denoted by the same element reference numerals.

The present application provides an aperture assembly, which can be installed in a mobile terminal such as a mobile phone, a smart phone (Smartphone), a tablet computer (Tablet Computer), a wearable device with a camera function, etc., but is not limited to this. The present application can realize the configuration of a large-aperture image capturing module on a light and thin electronic device, and meet the user's requirement for using a large-aperture lens for imaging. On the other hand, the present application imparts the function of variable aperture to the lens equipped with the electronic device, so that the user can adjust the depth of field through the selection of the aperture when taking pictures with the lens.

The aperture assembly provided by the present application is used in an optical lens system. As a part of an imaging module or a camera lens, the aperture assembly is used to define the aperture of the camera lens, that is, to control the amount of light entering the camera lens. The aperture assembly can be implemented to make the camera lens The aperture assembly with a fixed aperture can also be implemented as an aperture assembly with a variable aperture for the imaging lens.

As shown in FIG. 2 , the aperture assembly includes a plate 22 . The plate 22 includes a light-transmitting portion 221 and a non-light-transmitting portion 222 . The light-transmitting portion 221 is used to define the aperture aperture of the optical lens system. The plate 22 mentioned herein may be one plate in the aperture assembly or one plate in a plurality of plates, or may be a general term for a plurality of plates in the aperture assembly having the same or similar sizes and shapes of light-transmitting parts. The light-transmitting portion 221 of the plate 22 represents an area through which light can pass, which may be an aperture of a certain section on the travel path of the light in the lens, or may be the initial or final aperture aperture of the optical lens system.

Specifically, different from the aperture aperture of the conventional lens, the outline of the light-transmitting portion 221 of the plate 22 in the present application has a non-circular shape, that is, a non-circular aperture is formed. In one embodiment, as shown in FIG. 2 , the outline of the light-transmitting portion 221 includes a first cut edge 22a, a second cut edge 22b, a first arc edge 22c, and a second arc edge 22d. The first cut edge 22a and the second cut edge 22b face each other, and the first arc edge 22c and the second arc edge 22d face each other. These cut edges and arc edges are connected end-to-end to form a hollow area, that is, the light-transmitting portion 221 . In one embodiment, the lengths of the first cut edge 22a and the second cut edge 22b are equal, and the curvature radii of the first arc edge 22c and the second arc edge 22d are the same, that is, the plate 22 forms a symmetrical transparent Light unit 221 .

A possible approach is to change the aperture aperture to the above-mentioned non-circular aperture if the original aperture size is to be maintained when the size of the plate 22 of the aperture assembly is reduced to meet the size requirements. Aperture aperture, that is, trimming the upper and lower sides of a circle (obtaining the first trimming edge 22a and the second trimming edge 22b), and extending the arc edges on the left and right sides of the circle laterally (obtaining the first arc edge 22c and second arc edge 22d), thereby reducing the influence of the aperture size due to the reduction of the lens size.

In the aperture assembly of the present application, the light-transmitting portion 221 of the plate 22 for defining the aperture aperture of the optical lens system has a non-circular profile, so that the circular aperture can be prevented from being reduced when the size of the plate 22 is reduced. It is possible to realize the configuration of the large-aperture imaging module on thin or small electronic devices, so as to achieve the effect of large-aperture shooting.

In addition, the contour of the non-circular shape can also be composed of lines (not shown) with continuous plural concavities and convexities, plural zigzags or wavy shapes, that is, the contour lines have continuous plural concavo-convex, plural zigzag or wavy shapes, but the whole is still non-circular outline of shape.

3A to 3C show an aperture assembly 30 according to the first embodiment of the present application, the aperture assembly 30 can adjust the aperture aperture, so that the imaging module or the camera lens has multiple apertures. FIG. 3A is a perspective view of the aperture assembly 30 , FIG. 3B is a perspective view from another angle, and FIG. 3C is an exploded view. Please refer to FIGS. 3A to 3C together. The aperture assembly 30 includes a driving unit (eg, a motor 31 ), a base 32 , a first flat plate 33 , a first aperture plate 35 , a second aperture plate 34 and a first aperture plate 34 . Two flat plates 36. The driving unit 31 is fixed on the base 32 , the first plate 33 , the second aperture plate 34 , the first aperture plate 35 and the second plate 36 are arranged on the base 32 , for example, these elements are stacked on the base 32 in sequence , the first diaphragm 35 and the second diaphragm 34 are arranged between the first flat plate 33 and the second flat plate 36 . The aperture blades referred to herein may be aperture blades, feathers, or the like. The first flat plate 33 can also be referred to as a bottom plate, and the second flat plate 36 can also be referred to as a cover plate. The above-mentioned plate 22 can be any one of the base 32, the first flat plate 33 and the second flat plate 36, and can also be a general term for these plates 32, 33 and 36, and these plates 32, 33 and 36 all have The light-transmitting parts that define the aperture aperture of the optical lens system, the size and shape of these light-transmitting parts are the same or similar. As shown in FIG. 3C , the base 32 , the first flat plate 33 and the second flat plate 36 all have non-circular light-transmitting parts with upper and lower cut edges and left and right arc edges.

The drive unit may be an electric drive motor, such as the motor 31, but is not limited to this. The drive unit may be implemented by a magnet coil assembly and a voice coil motor driven by magnetic force, or by a piezoelectric material, a shape memory alloy (Shape Memory Alloy, SMA) etc. to realize the drive.

In the following, the driving unit is an electric drive motor 31 for illustration. Please continue to refer to FIGS. 3A to 3C. The motor 31 has a rotatable shaft 31a, and the aperture assembly 30 further includes a rotating member 310. The shaft of the motor 31 31a passes through the base 32, the rotating member 310 is fixed on the shaft 31a of the motor 31, the base 32 is provided with a groove, and the rotating member 310 can rotate in the groove along with the shaft 31a. The rotating member 310 has a rotating platform 312 and a first force applying member 313 and a second force applying member 314 disposed on the rotating platform 312 . Preferably, the first force applying member 313 and the second force applying member 314 are disposed on opposite sides in the radial direction. The first force application member 313 and the second force application member 314 of the rotating member 310 are used to drive the first aperture plate 35 and the second aperture plate 34 to move respectively, thereby changing the aperture aperture of the optical lens system. The first force application member 313 and the second force application member 314 of the rotating member 310 may be structural members in any form. For example, the first force application member 313 and the second force application member 314 are respectively the first protrusion and the second protrusion. .

The first aperture plate 35 is provided with a first force-receiving member 351 , the first force-applying member 313 of the rotating member 310 is matched with the first force-receiving member 351 , and the first force-applying member 313 is matched with the first force-receiving member 351 The rotating member 310 can apply force to the first aperture plate 35, the second aperture plate 34 is provided with a second force-receiving member 341, and the second force-applying member 314 of the rotating member 310 is adapted to the second force-receiving member 341. The cooperation of the second force-applying member 314 and the second force-receiving member 341 enables the rotating member 310 to apply force to the second aperture plate 34 . Specifically, the first force-receiving member 351 on the first aperture plate 35 is, for example, a first force-receiving hole, and the second force-receiving member 341 on the second aperture plate 34 is, for example, a second force-receiving hole. The first protrusion of the rotating member 310 passes through the first force receiving hole of the first aperture plate 35 , and the second protrusion of the rotating member 310 passes through the second force receiving hole of the second diaphragm plate 34 . When the motor 31 rotates, the first protrusion on the rotating member 310 exerts a force on the first aperture plate 35 at the first force-receiving hole of the first aperture plate 35 to make the first aperture plate 35 move. The second protrusion on the second aperture sheet 34 exerts force on the second aperture sheet 34 at the second force-receiving hole of the second aperture sheet 34 to make the second aperture sheet 34 move.

4A and 4B show schematic diagrams of the operation of the first aperture plate 35 and the second aperture plate 34 . 4A and 4B together, when the first aperture plate 35 moves in a first direction (such as upper left), the second aperture plate 34 moves in a second direction (such as lower right) (such as from 4A to 4B ), the aperture aperture of the optical lens system is changed, so that the optical lens system has a first aperture aperture (such as a smaller aperture aperture); when the first aperture plate 35 is in the second direction (such as the lower right ), when the second aperture plate 34 moves along the first direction (such as the upper left) (such as from FIG. 4B to FIG. 4A ), the aperture aperture of the optical lens system is changed, so that the optical lens system has a second aperture aperture (such as a larger aperture) Large aperture aperture), the first aperture aperture is different from the second aperture aperture (in this example, the second aperture aperture is larger than the first aperture aperture). In this example, the second aperture aperture may be the same as the aperture aperture defined by the light-transmitting portion 221 of the plate 22 , or smaller than the aperture aperture defined by the light-transmitting portion 221 of the plate 22 . Preferably, the first direction and the second direction are opposite directions.

Specifically, referring to FIGS. 3C , 4A and 4B, when the motor 31 drives the rotating member 310 to rotate clockwise, the first force member 313 of the rotating member 310 drives the first aperture plate 35 to the first direction ( As shown in the upper left direction), the second force member 314 of the rotating member 310 drives the second aperture plate 34 to move in the second direction (such as the lower right direction), that is, from the action shown in FIG. 4A to FIG. 4B , at this time, the optical lens The aperture aperture of the system changes from the second aperture aperture to the first aperture aperture, which is the size of the first aperture; when the motor 31 drives the rotating member 310 to rotate counterclockwise, the first force member 313 of the rotating member 310 drives the A diaphragm 35 moves in the second direction (eg, the lower right direction), and the second force member 314 of the rotating member 310 drives the second diaphragm 34 to move in the first direction (eg, the upper left direction), that is, from FIG. 4B to FIG. 4A In the action shown, the aperture aperture of the optical lens system changes from the first aperture aperture to the second aperture aperture, which is the size of the second aperture. Thereby, multi-stage adjustment of the aperture of the optical lens system is realized.

Referring to FIGS. 3A to 3C , a limiting member 32 a is provided on the base 32 , a first limiting structure 352 is provided on the first aperture plate 35 , and a second limiting structure 342 is provided on the second aperture plate 34 . The position of the first limiting structure 352 of a diaphragm 35 corresponds to the position of the second limiting structure 342 of the second diaphragm 34 . The limiting member 32 a of the base 32 is connected to the first limiting structure 352 and the second limiting structure 342 . The structure 342 is adapted to guide the movement of the first aperture plate 35 and the second aperture plate 34 . Specifically, the limiting member 32a on the base 32 may be a limiting protrusion, the first limiting structure 352 on the first aperture plate 35 may be a first limiting hole, and the second limiting structure 352 on the second aperture sheet 34 may be a first limiting hole. The limiting structure 342 may be a second limiting hole, and the limiting protrusions on the base 32 pass through the first limiting hole of the first aperture sheet 35 and the second limiting hole of the second aperture sheet 34 . The first limiting hole of the first aperture sheet 35 and the second limiting hole of the second aperture sheet 34 extend along the first direction and the second direction, so that the first aperture sheet 35 is positioned between the limiting protrusion and the first limiting position. Under the guidance of the position hole, it can move in the first direction (such as the upper left) and in the second direction (such as the lower right). The second aperture plate 34 is guided by the limit protrusion and the second limit hole Down, it can move in the first direction (such as upper left), and it can also move in the second direction (such as lower right).

The base 32 can also be provided with another limiting member 32b, such as a limiting protrusion, and the first aperture plate 35 and the second aperture plate 34 are additionally provided with limiting structures (eg, limiting holes) at the corresponding positions. Or more than two limiting structures can make the movement of the first aperture plate 35 and the second aperture plate 34 more stable.

Please refer to FIGS. 3A to 3C , a first limiting groove 361 and a second limiting groove 362 are formed on the second flat plate 36 , and the first force-applying member 313 of the rotating member 310 penetrates through the first force-applying member 313 on the second flat plate 36 . A limiting slot 361 , the second force applying member 314 of the rotating member 310 penetrates the second limiting slot 362 on the second plate, and the shape of the first limiting slot 361 matches the rotation trajectory of the first force applying member 313 , the shape of the second limiting groove 362 matches the rotation trajectory of the second force applying member 314 . That is, the first limiting slot 361 is arc-shaped, corresponding to the movement trajectory of the first force-applying member 313, and used to limit the movement of the first force-applying member 313 of the rotating member 310; the second limiting slot 362 is arc-shaped , corresponding to the movement trajectory of the second force applying member 314 , and is used to limit the movement of the second force applying member 314 of the rotating member 310 . The sizes of the first limiting groove 361 and the second limiting groove 362 determine the arc through which the rotating member 310 can rotate, thereby limiting the movement amount of the first aperture plate 35 and the second aperture plate 34 .

It should be noted that, the first limiting groove 361 and the second limiting groove 362 can also be disposed on other plates except the second flat plate 36, and can be adjusted according to the needs of structural design.

The first direction and the second direction mentioned above are the directions inclined to the first cut edge 22a or the second cut edge 22b, that is, the oblique direction, and the first aperture plate 35 and the second aperture plate 34 are along the upper left and lower right. direction move. However, in an embodiment, the first direction and the second direction may also be directions parallel to the first cut edge 22a or the second cut edge 22b, that is, the horizontal direction, so that the first aperture plate 35 and the second aperture plate 34 Can move in the left and right directions. In another embodiment, the first direction and the second direction may also be directions perpendicular to the first cut edge 22a or the second cut edge 22b, that is, vertical directions, so that the first aperture plate 35 and the second aperture plate 34 can Move in the up and down direction. The above-mentioned various different can be accomplished by properly adjusting the force-applying member on the rotating member 310, the force-receiving member and the limiting structure on the aperture plate, the limiting member on the base 32 and/or the limiting groove on the plate. implementation.

FIG. 5 shows an aperture assembly 50 according to the second embodiment of the present application, the aperture assembly 50 has two pairs of aperture plates, namely four aperture plates, wherein one pair of aperture plates realizes movement in the vertical direction, and the other pair of aperture plates The movement in the horizontal direction is realized, and multi-stage aperture adjustment can be achieved. As shown in FIG. 5 , the first aperture sheet 35 and the second aperture sheet 34 are stacked between the bottom plate and the cover plate and can move in the vertical direction, and the third aperture sheet 52 and the fourth aperture sheet 51 are stacked on the base Between 32 and the bottom plate, it can move in the horizontal direction.

As shown in FIG. 5 , FIG. 6A and FIG. 6B , when the rotating member 310 rotates clockwise, the first force-applying member 313 on the rotating member 310 is located at the first force-receiving member 351 of the first aperture plate 35 to the first force-receiving member 351 . The aperture plate 35 exerts force, so that the first aperture plate 35 moves upward, and the second force application member 314 on the rotating member 310 exerts force on the second aperture plate 34 at the second force receiving member 341 of the second aperture plate 34 , so that the second aperture plate 34 moves downward, that is, the action from FIG. 6A to FIG. 6B . When the rotating member 310 rotates counterclockwise, the first urging member 313 on the rotating member 310 makes the first diaphragm 35 move downward, and the second urging member 314 on the rotating member 310 makes the second diaphragm 34 move upward , that is, the action from FIG. 6B to FIG. 6A . In this way, in the vertical direction, the aperture size of the aperture of the optical lens system is changed.

As shown in FIGS. 5 , 6C and 6D, the third diaphragm 52 and the fourth diaphragm 51 are allowed to move in a third direction (such as left) and a fourth direction (such as right), respectively, and the third diaphragm The plate 52 and the fourth aperture plate 51 are also allowed to move in the fourth and third directions, respectively. Preferably, the third direction and the fourth direction are opposite directions. The rotating platform 312 of the rotating member 310 is provided with a third force applying member 315 and a fourth force applying member 316 . Preferably, the third force application member 315 and the fourth force application member 316 are disposed on opposite sides in the radial direction. The third aperture plate 52 is provided with a third force-receiving member 521, the third force-applying member 315 of the rotating member 310 is adapted to the third force-receiving member 521, and the fourth aperture plate 51 is provided with a fourth force-receiving member 511, The fourth force-applying member 316 of the rotating member 310 is adapted to the fourth force-receiving member 511 . When the rotating member 310 rotates clockwise, the third force-applying member 315 on the rotating member 310 exerts a force on the third diaphragm plate 52 at the third force-receiving member 521 of the third diaphragm plate 52, so that the third diaphragm plate 52 Moving to the right, the fourth force-applying member 316 on the rotating member 310 exerts force on the fourth diaphragm plate 51 at the fourth force-receiving member 511 of the fourth diaphragm plate 51, so that the fourth diaphragm plate 51 moves to the left, that is, Actions from Figure 6C to Figure 6D. When the rotating member 310 rotates counterclockwise, the third force applying member 315 on the rotating member 310 causes the third aperture plate 52 to move to the left, and the fourth force applying member 316 on the rotating member 310 causes the fourth diaphragm plate 51 to move to the right , that is, the action from FIG. 6D to FIG. 6C . In this way, in the horizontal direction, the aperture size of the aperture of the optical lens system is changed. Preferably, the third force-applying member 315 and the fourth force-applying member 316 on the rotating platform 312 are respectively the third protrusion and the fourth protrusion, and the third force-receiving member 521 and the fourth The fourth force-receiving member 521 on the aperture plate 51 is a third force-receiving hole and a fourth force-receiving hole, respectively, and the third protrusion on the rotating platform 312 passes through the third force-receiving hole of the third aperture plate 52 to The third aperture plate 52 is driven to move; the fourth protrusion on the rotating platform 312 passes through the fourth force-receiving hole of the fourth aperture plate 51 to drive the fourth aperture plate 51 to move.

Therefore, as long as the appropriate mechanism design is matched, either one of the first pair of aperture plates and the second pair of aperture plates will work, and the other pair will not. , the multi-stage aperture adjustment of the optical lens system can be completed.

In addition, in an embodiment, as shown in FIG. 5 , the first force-receiving member 351 of the first aperture plate 35 and the second force-receiving member 341 of the second aperture plate 34 are the first force-receiving hole and the second force-receiving hole, respectively. For the force hole, the first aperture plate 35 is provided with a first through hole 355 , and the second aperture plate 34 is provided with a second through hole 345 . The second force member 314 of the rotating member 310 passes through the first receiving hole 355 of the first aperture plate 35 and the second force receiving hole of the second diaphragm plate 34 , and the first receiving hole 355 is used for the rotating member 310 When the second force applying member 314 exerts force on the second aperture plate 34 , the rotation trajectory of the second force applying member 314 is accommodated, so that the second force applying member 314 does not interfere with the first aperture plate 35 . The first force-applying member 313 of the rotating member 310 passes through the first force-receiving hole 345 of the first aperture plate 35 and the second through-hole 345 of the second aperture plate 34 . The second through-hole 345 is used in the rotating member 310 When the first force applying member 313 exerts force on the first aperture plate 35 , the rotation trajectory of the first force applying member 313 is accommodated, so that the first force applying member 313 does not interfere with the second aperture plate 34 .

7A shows a perspective view of the aperture assembly 70 according to the third embodiment of the present application, and FIG. 7B shows an exploded view of the aperture assembly 70 according to the third embodiment of the present application. Different from the above-mentioned first and second embodiments, in the third embodiment, the driving unit adopts a different solution. In this solution, the magnets and the two coils are arranged opposite (for example, side by side) to further reduce the size. the thickness of the aperture assembly. As shown in FIGS. 7A and 7B , the driving unit includes a driving base 71 , a shaft 72 , a circuit board 73 , a coil assembly 74 (eg, including two coils) and a magnet 75 . The shaft 72 is arranged on the drive base 71, and the circuit board 73 is provided with an opening corresponding to the shaft 72 for the shaft 72 to pass through, so that the shaft 72 is connected with the rotating member 310, and the rotating member 310 is fixed on the on the shaft 72. The circuit board 73 is used to control the current passing through the coil assembly 74. The magnet 75 can be a permanent magnet, and the magnet 75 is matched with the coil assembly 74 to drive. reduced, thereby reducing the overall thickness of the aperture assembly. In addition, the cover sheet 76 covers the rotating member 310 to provide protection.

The present application also provides an imaging module, which includes the above-mentioned aperture assembly. For the specific details of the aperture assembly, please refer to the above description, which will not be repeated here.

In the aperture assembly of the present application, a pair of aperture plates is used, one of which moves in the first direction and the other one moves in the second direction, thereby changing the aperture aperture and realizing aperture adjustment of non-circular aperture apertures. Furthermore, multiple pairs of aperture plates can also be combined, and each pair of aperture plates moves in different directions to realize the adjustment of multi-segment apertures, so that the optical lens system has multi-segment variable apertures.

The present application has been disclosed above with preferred embodiments, but it is not intended to limit the present application. Those with ordinary knowledge in the technical field to which the present application pertains can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of this application should be determined by the scope of the appended patent application.

12: Board 22: Board 22a: First edge 22b: The second cutting edge 22c: The first arc edge 22d: The second arc edge 221: Translucent part 222: Non-transmissive part 30: Aperture assembly 31: Motor 31a: Shaft 310: Rotating part 312: Rotating platform 313: The first force-applying piece 314: The second force-applying piece 315: The third force-applying piece 316: The fourth force-applying piece 32: The base 32a: Limiting piece 32b: Limiting piece 33: The first plate 34: The second aperture plate 341: The second stress member 342: The second limit structure 345: The second through hole 35: The first aperture plate 351: The first force-bearing member 352: The first limit structure 355: The first through hole 36: The second plate 361: The first limit slot 362: The second limit slot 50: Aperture assembly 51: Fourth Aperture Plate 511: Fourth Force Part 52: Third Aperture Plate 521: The third force bearing part 70: Aperture assembly 71: Drive base 72: Shaft 73: Circuit Board 74: Coil Assembly 75: Magnet 76: Cover Sheet A: Aperture Aperture B: Aperture aperture

[FIG. 1] A schematic diagram showing a conventional aperture aperture configuration. [ FIG. 2 ] A schematic diagram showing a configuration of an aperture aperture according to an embodiment of the present application. [ Fig. 3A ] A perspective view showing the aperture assembly according to the first embodiment of the present application. [ Fig. 3B ] A perspective view showing another viewing angle of the aperture assembly according to the first embodiment of the present application. [ FIG. 3C ] An exploded view showing the aperture assembly according to the first embodiment of the present application. [ FIG. 4A ] A schematic diagram showing the operation of the first aperture plate and the second aperture plate according to the first embodiment of the present application. [ Fig. 4B ] A schematic diagram showing the operation of the first aperture plate and the second aperture plate according to the first embodiment of the present application. [ Fig. 5 ] An exploded view showing an aperture assembly according to a second embodiment of the present application. [ FIG. 6A ] A schematic diagram showing the operation of the first aperture plate and the second aperture plate according to the second embodiment of the present application. [ Fig. 6B ] A schematic diagram showing the operation of the first aperture plate and the second aperture plate according to the second embodiment of the present application. [ Fig. 6C ] A schematic diagram showing the operation of the third aperture plate and the fourth aperture plate according to the second embodiment of the present application. [ Fig. 6D ] A schematic diagram showing the operation of the third aperture plate and the fourth aperture plate according to the second embodiment of the present application. [ Fig. 7A ] A perspective view showing an aperture assembly according to a third embodiment of the present application. [ FIG. 7B ] An exploded view showing the aperture assembly according to the third embodiment of the present application.

22: Board 22a: first edge 22b: Second trim 22c: first arc edge 22d: Second arc edge 221: Translucent part 222: non-transparent part

Claims (13)

An aperture assembly used in an optical lens system, the aperture assembly comprising: a plate including a light-transmitting portion and a non-light-transmitting portion, the light-transmitting portion being used to define an aperture aperture of the optical lens system, wherein the light-transmitting portion The contour of the portion has a non-circular shape; and a first aperture plate and a second aperture plate are disposed on the plate, wherein when the first aperture plate moves in a first direction, the second aperture plate moves along a first When moving in two directions, the aperture aperture of the optical lens system is changed, so that the optical lens system has a first aperture aperture; when the first aperture sheet moves along the second direction, the second aperture sheet moves along the first direction When moving, the aperture aperture of the optical lens system is changed, so that the optical lens system has a second aperture aperture, and the first aperture aperture is different from the second aperture aperture. The aperture assembly according to claim 1, wherein the outline of the light-transmitting portion includes a first cut edge, a first arc edge connected to the first cut edge, and a second cut edge and the second cut edge A connected second arc edge, the second cut edge is set relative to the first cut edge, and the second arc edge is set relative to the first arc edge. The aperture assembly according to claim 2, wherein the lengths of the first cut edge and the second cut edge are the same, and the curvature radii of the first arc edge and the second arc edge are the same. The aperture assembly according to claim 2, wherein the first direction and the second direction are directions inclined, parallel or perpendicular to the first cut edge or the second cut edge. The aperture assembly according to claim 1, further comprising: a rotating member, a first force applying member and a second force applying member are disposed on the rotating member, wherein a first force receiving member is disposed on the first aperture plate, The first force-applying piece of the rotating piece is adapted to the first force-receiving piece, and the first force-applying piece applies force to the first aperture plate along with the rotation of the rotating piece, so as to move the first aperture plate , and the second aperture plate is provided with a second force-receiving member, and the second force-applying member of the rotating member is connected to the second force-receiving member. The force member is adapted, and the second force-applying member applies force to the second aperture plate along with the rotation of the rotating member to make the second aperture plate move; and a base, on which a limit stop is arranged The first aperture piece has a first limiting structure, the second aperture piece has a second limiting structure, and the limiting piece of the base is connected to the first limiting structure and the second limiting structure The adaptation is used to guide the movement of the first aperture plate and the second aperture plate. The aperture assembly according to claim 5, wherein the first force-applying member and the second force-applying member of the rotating member are located at opposite positions in the radial direction, and the first limiting structure of the first aperture plate and the second aperture plate The second limiting structure extends along the first direction and the second direction. The aperture assembly according to claim 5, wherein the board is provided with a first limiting groove and a second limiting groove, and the first force-applying member of the rotating member passes through the first limiting groove on the board , the second force-applying piece of the rotating piece passes through the second limiting slot on the plate, the first limiting slot is used to limit the movement of the first force-applying piece of the rotating piece, the first limiting slot It is arc-shaped, corresponding to the movement track of the first force-applying member; the second limit groove is used to limit the movement of the second force-applying member of the rotating member, and the second limit groove is arc-shaped and corresponds to the second force-applying member. The movement trajectory of the force applying element. The aperture assembly according to claim 5, wherein the first force-applying member and the second force-applying member of the rotating member are a first protrusion and a second protrusion, respectively, and the first force-receiving member on the first aperture plate and The second force-receiving members on the second aperture plate are respectively a first force-receiving hole and a second force-receiving hole, and the first protrusion of the rotating member passes through the first force-receiving hole of the first aperture plate. The second protrusion of the member is inserted through the second force-receiving hole of the second aperture plate, wherein the limiting member on the base is a limiting protrusion, the first limiting structure of the first aperture plate and the The second limiting structures on the two diaphragms are respectively a first limiting hole and a second limiting hole, and the limiting protrusion is penetrated through the first limiting hole of the first diaphragm and the first limiting hole of the second diaphragm. Two limiting holes, wherein the first aperture sheet and the second aperture sheet are aperture blades sequentially stacked on the plate. The aperture assembly according to claim 5, wherein the first force-receiving member of the first aperture plate and the second force-receiving member of the second aperture plate are a first force-receiving hole and a second force-receiving hole, respectively, and the first force-receiving member A first aperture plate is provided with a first through hole, the second aperture plate is provided with a second through hole, and the first force member of the rotating member passes through the first force hole of the first aperture plate and the first through hole. The second receiving through holes of the two aperture plates, the second force applying member of the rotating member passes through the first receiving through hole of the first diaphragm plate and the second force receiving hole of the second diaphragm plate, the first receiving The through hole is used for not interfering with the first aperture plate when the second force applying member of the rotating member exerts force on the second aperture plate, and the second receiving through hole is used for the first applying force of the rotating member When the force member exerts force on the first aperture plate, it does not interfere with the second aperture plate. An aperture assembly used in an optical lens system, the aperture assembly comprising: a plate including a light-transmitting portion and a non-light-transmitting portion, the light-transmitting portion being used to define an aperture aperture of the optical lens system, wherein the light-transmitting portion The contour of the part has a non-circular shape; a first aperture sheet and a second aperture sheet are arranged on the plate, wherein when the first aperture sheet moves in a first direction, the second aperture sheet moves along a second aperture sheet When the direction moves, the aperture aperture of the optical lens system is changed, so that the optical lens system has a first aperture aperture; when the first aperture sheet moves along the second direction, the second aperture sheet moves along the first direction , the aperture aperture of the optical lens system is changed, so that the optical lens system has a second aperture aperture, the first aperture aperture is different from the second aperture aperture; and a third aperture plate and a fourth aperture plate, Stacked with the plate, the first aperture plate and the second aperture plate, wherein the third aperture plate and the fourth aperture plate are allowed to move in a third direction and a fourth direction, respectively, the third aperture plate The aperture plate and the fourth aperture plate are also allowed to move in the fourth direction and the third direction, respectively. The aperture assembly according to claim 10, further comprising: A rotating member, the rotating member is provided with a first force-applying piece, a second force-applying piece, a third force-applying piece and a fourth force-applying piece, wherein the first aperture plate is provided with a first force-receiving piece , the first force-applying piece of the rotating piece is adapted to the first force-receiving piece, and the first force-applying piece drives the first aperture piece to move along the first direction; a second force-receiving piece is arranged on the second aperture piece The second force-applying piece of the rotating piece is adapted to the second force-receiving piece, and the second force-applying piece drives the second aperture plate to move along the second direction; the third aperture plate is provided with a third receiving member a force member, the third force-applying member of the rotating member is adapted to the third force-receiving member, and the third force-applying member drives the third aperture plate to move along the third direction; a fourth aperture plate is provided on the fourth aperture plate A force-receiving member, the fourth force-applying member of the rotating member is adapted to the fourth force-receiving member, and the fourth force-applying member drives the fourth aperture plate to move along the fourth direction, wherein the first direction and the first The second direction corresponds to a vertical direction, and the third direction and the fourth direction correspond to a horizontal direction. The aperture assembly according to any one of claims 5 or 11, further comprising: a driving unit, the driving unit is a motor, the motor has a rotatable shaft, the rotating member is fixed on the shaft of the motor and rotate with the shaft. The aperture assembly according to any one of claims 5 or 11, further comprising: a drive unit, the drive unit includes a drive base, a shaft, a magnet and a coil, the magnet is disposed opposite to the coil, and the shaft is disposed on the On the driving base, the rotating member and the shaft are connected to each other.

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