Dual-motor-driven integrated shutter module for infrared filter and aperture

Abstract

The present invention discloses an infrared filter and aperture integrated shutter module driven by dual motors, which includes a housing, a middle cover, a vane group, a filter substrate, an infrared filter, a first motor and a second motor. The housing includes a lower cover and an upper cover; the vane group includes a first vane and a second vane that are abutted together, and a first channel on the first vane and a second channel on the second vane jointly form an aperture; a motion transmission component A is connected to the rotating shaft of the first motor, and the motion transmission component A is respectively connected to the first vane and the second vane to drive the first vane and the second vane to move relatively to adjust the aperture size; a motion transmission component B is connected to the rotating shaft of the second motor, and the motion transmission component B is connected to the filter substrate to drive the filter substrate to move so that the infrared filter selectively covers the aperture. In the present invention, the dual motors respectively drive the vane group and the infrared filter, which is convenient to control and has higher flexibility.

Description

Technical Field

[0001] The present invention belongs to the field of cameras, and more specifically, relates to an integrated shutter module of an infrared filter and an aperture. Background Art

[0002] The aperture (IRIS), ISO, and shutter speed of a camera are very important parameters for camera imaging because a large number of variables depending on them constitute the final image. The aperture can add an artistic effect to the picture, blur the periphery of the object, and endow the picture with brightness, and vice versa. If the picture creativity requires, the picture can be darkened. Briefly speaking, the aperture is a hole inside the lens that allows a certain amount of light to pass through.

[0003] The aperture mainly affects the brightness factor of the image and is directly related to exposure. The larger the hole, the more light enters the lens and reaches the camera sensor. Therefore, the image appears brighter and the shadows look more saturated. By reducing the aperture, the opening can be narrowed, thereby limiting the light output.

[0004] DOF (depth of the clear imaging space) is the amount of space in the picture that remains in focus by connecting the foreground and the background. A photo with a blurred background has a shallower depth of field, and vice versa. In a clear image, the depth of field is important. The larger the aperture, the smaller the depth of field, and the greater the blurring of the taken photo. On the contrary, if the aperture is small, the taken photo is very clear and has no sense of hierarchy.

[0005] The aperture of a camera lens can be divided into a continuous aperture and a discontinuous aperture. The continuous aperture can achieve stepless adjustment and can be adjusted at any position between two aperture gears. The discontinuous aperture is adjusted in one-stop, half-stop, or one-third-stop of the aperture, and there is an obvious positioning feel during adjustment.

[0006] In some current cameras, the adjustment of the aperture size is carried out through the transmission of a gear mechanism. The gear mechanism drives the movement of the rocker arm and the vanes on the rocker to open and close multiple vanes to achieve aperture adjustment. Such a transmission structure is relatively precise and complex, and the manufacturing and installation processes are complex, with a high cost. It is easy to get stuck during the transmission process, resulting in the inability to adjust the aperture. In addition, the aperture of some cameras is controlled by a solenoid valve plus a Hall element, which is difficult to control. Moreover, an ordinary camera is very clear during the day, but it has no night vision function and cannot work when there is no light at night. Summary of the Invention

[0007] In view of the above defects or improvement requirements of the prior art, the present invention provides an integrated shutter module of an infrared filter and an aperture driven by two motors, which respectively adjusts the aperture size and the position of the infrared filter through two motors, is very convenient for control and adjustment, and can be used at night.

[0008] To achieve the above object, according to one aspect of the present invention, there is provided an integrated shutter module of an infrared filter and an aperture driven by a dual motor, which is characterized in that it includes a housing, a middle cover, a vane group, a filter substrate, an infrared filter, a first motor and a second motor, wherein:

[0009] The housing includes a lower cover and an upper cover fixedly connected together. A first light-transmitting hole is provided on the lower cover, and a second light-transmitting hole is provided on the upper cover at a position corresponding to the first light-transmitting hole;

[0010] The middle cover, the vane group and the filter substrate are all located inside the housing and are all mounted on the housing. A vane chamber is formed between the middle cover and the lower cover, and the vane group is arranged in the vane chamber;

[0011] The vane group includes a first vane and a second vane abutting against each other. A first hole on the first vane and a second hole on the second vane together form an aperture;

[0012] The first motor and the second motor are both mounted on the housing; a motion transmission member A is connected to the rotating shaft of the first motor, and the motion transmission member A is respectively connected to the first vane and the second vane to drive the first vane and the second vane to move relatively to adjust the aperture size; a through hole A is provided on the middle cover at a position corresponding to the aperture, the filter substrate is placed on the middle cover and a through hole B is provided on the filter substrate, and the infrared filter is mounted on the filter substrate at a position corresponding to the through hole B; a motion transmission member B is connected to the rotating shaft of the second motor, and the motion transmission member B is connected to the filter substrate to drive the filter substrate to move so that the infrared filter selectively covers the aperture.

[0013] Preferably, the motion transmission member A includes a first swing arm and a second swing arm fixedly mounted on the rotating shaft of the first motor, and the first swing arm and the second swing arm are circumferentially distributed along the rotating shaft of the first motor. Long strip holes A and long strip holes B are respectively provided on the first vane and the second vane, and the length directions of the long strip holes A and long strip holes B are the same. A plurality of guide posts A and a plurality of guide posts B are provided on the upper cover. Each guide post A extends into the long strip hole A so that the first vane moves along the length direction of the long strip hole A, and each guide post B extends into the long strip hole B so that the second vane moves along the length direction of the long strip hole B;

[0014] A first guide groove serving as a moving channel for the first swing arm is provided on the first vane, and a second guide groove serving as a moving channel for the second swing arm is provided on the second vane. The first swing arm and the second swing arm respectively extend into the first guide groove and the second guide groove to drive the first vane and the second vane to move relatively to adjust the aperture size when the rotating shaft of the first motor rotates.

[0015] Preferably, there are multiple elongated holes A, and these elongated holes A are distributed on multiple straight lines and these straight lines are parallel to each other;

[0016] There are multiple elongated holes B, and these elongated holes B are distributed on multiple straight lines and these straight lines are parallel to each other.

[0017] Preferably, a guiding track is provided on the lower cover, and the filter substrate is installed on the guiding track;

[0018] The movement transmission component B includes a third swing arm installed on the rotating shaft of the second motor. A third guiding groove serving as a moving channel for the third swing arm is provided on the filter substrate. The third swing arm extends into the third guiding groove to drive the filter substrate to move along the guiding track when the rotating shaft of the second motor rotates, so as to selectively cover the aperture with the infrared filter.

[0019] Preferably, there are two guiding tracks and they are parallel to each other. Each guiding track is formed by a plurality of arc-shaped bosses arranged on the same straight line, and the filter substrate is clamped by these two guiding tracks.

[0020] Preferably, the first vane includes a first vane body and a plurality of convex points, and each of the convex points is arranged on the surface of the first vane body close to the second vane to reduce the contact area and friction force between the first vane and the second vane;

[0021] and / or,

[0022] The second vane includes a second vane body and a plurality of convex points, and each of the convex points is arranged on the surface of the second vane body close to the first vane to reduce the contact area and friction force between the first vane and the second vane.

[0023] Preferably, the first motor and the second motor are respectively installed on the housing through buckles, and I-shaped buckles are respectively installed on each of the buckles to prevent the buckles from falling off the housing.

[0024] Preferably, the middle cover is fixedly installed on the lower cover through a buckle.

[0025] Preferably, there are two infrared filters, and the wavelengths of the light waves that they can penetrate and reflect are not equal.

[0026] Preferably, the lower cover is respectively provided with dust-proof cover positioning platforms at positions corresponding to the first motor and the second motor. The dust-proof cover is installed on the dust-proof cover positioning platform through a buckle for respectively sealing and dust-proofing the first motor and the second motor from the lower cover.

[0027] Generally speaking, compared with the prior art by the above technical solutions conceived by the present invention, the following beneficial effects can be achieved:

[0028] 1) The first motor of the shutter module of the present invention can drive the first vane and the second vane to move relative to each other, so as to quickly adjust the aperture size. Moreover, the second motor can drive the infrared filter to move, so as to adapt to the photographing environments in the daytime and at night. The two motors of the present invention respectively drive the vane group and the infrared filter, which is convenient to control and has higher flexibility.

[0029] 2) The motion transmission component A of the present invention uses a swing arm mounted on the rotating shaft of the first motor instead of the traditional aperture gear. Equivalent to directly driving the vane group to generate relative movement through the first motor, it can respond quickly and the transmission is reliable.

[0030] 3) The guide post of the present invention can make the first vane and the second vane move linearly to change the aperture size. The guide post mainly restricts the moving directions of the first vane and the second vane, so that they can move parallelly without deviation.

[0031] 4) The arc-shaped boss of the present invention can not only reduce the contact surface between the lower cover and the filter substrate, making the front and back movement of the filter substrate smoother, but also limit the position of the filter substrate, so that the filter substrate will not deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0033] Figure 2 is an exploded view of the present invention;

[0034] Figure 3 、 Figure 4 are schematic diagrams of the lower cover of the present invention from different perspectives respectively;

[0035] Figure 5 is a schematic diagram of the middle cover of the present invention;

[0036] Figure 6 is a schematic diagram of the upper cover of the present invention;

[0037] Figure 7a and Figure 7b are schematic diagrams of the first motor and the second motor of the present invention respectively;

[0038] Figure 8 is a partially enlarged schematic diagram of the middle cover of the present invention installed on the lower cover by a buckle;

[0039] Figure 9 is a partially enlarged schematic diagram of the installation location of the first motor of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Referring to the drawings, the dual-motor driven infrared filter and aperture integrated shutter module includes a housing, a middle cover 40, a feather root group, a filter substrate 50, an infrared filter, a first motor 10A and a second motor 10B, wherein:

[0042] The housing includes a lower cover 20 and an upper cover 60 that are fixedly connected together. The upper cover 60 has four positioning holes 63 distributed around it, which cooperate with the four positioning holes 63 around the lower cover 20 for positioning. The upper cover 60 also has three upper threaded holes 64 distributed around it, which are used to be fixedly installed with the three lower threaded holes 27 of the lower cover 20 by screws 70, and the first quill 30A and the second quill 30B, the middle cover 40 and the filter substrate 50 are wrapped in the middle.

[0043] The lower cover 20 is provided with a first light-transmitting hole, and the upper cover 60 is provided with a second light-transmitting hole at a position corresponding to the first light-transmitting hole; both the first light-transmitting hole and the second light-transmitting hole can transmit light, and their diameters are fixed and cannot be adjusted. Therefore, the shutter module needs to use an aperture to control the exposure.

[0044] The middle cover 40, the quill group and the filter substrate 50 are all located in the housing and are mounted on the housing. A quill room is formed between the middle cover 40 and the lower cover 20. The quill group is arranged in the quill room. The inner wall of the lower cover 20 has a quill receiving plane 23-1 to receive the quill group.

[0045] The calamus group includes a first calamus 30A and a second calamus 30B abutting against each other, the first calamus 30A and the second calamus 30B are both thin sheets, the first channel on the first calamus 30A and the second channel on the second calamus 30B jointly form an aperture; the first channel can be a channel with one end closed and the other end open, and the closed end is arc-shaped, and the second channel can be a circular hole, then the relative position of the arc-shaped end of the first channel and the second channel is changed, so that the size of the aperture can be changed. The first calamus 30A can move on the calamus receiving plane 23-1.

[0046] The first motor 10A and the second motor 10B are both mounted on the housing, preferably on the lower cover 20; the first motor 10A and the second motor 10B are respectively mounted on the housing through first buckles 11, and each first buckle 11 is respectively mounted with an I-shaped buckle to prevent the first buckle 11 from falling off the housing.Figure 4 , Figure 6 , two circular holes are formed in the back surface of the lower cover 20 for installing two motors, and the motors are fixedly installed in the motor mounting holes 21 through the first buckles 11. A pair of first buckles 11 are arranged on one side of the first motor 10A and the second motor 10B of the present invention. The first buckles 11 are made of elastic material and are buckled into the motor mounting holes 21 on the back surface of the lower cover 20 by pressing and deforming. The motor mounting holes 21 are through holes. There are a first I-shaped buckle 61 and a second I-shaped buckle 62 at the bottom of the upper cover 60. Refer to Figure 9 , the first I-shaped buckle 61 and the second I-shaped buckle 62 respectively abut against the first buckles 11 on the bottom surfaces of the first motor 10A and the second motor 10B, so that the first buckles 11 can always buckle the motor mounting holes 21 to prevent the first buckles 11 from deforming inward and falling off. The lower cover 20 is respectively provided with dust-proof cover positioning platforms 26-1 at positions corresponding to the first motor 10A and the second motor 10B. The dust-proof cover 80 is installed on the dust-proof cover positioning platform 26-1 through the third buckle 26-2, so as to respectively seal and dust-proof the first motor 10A and the second motor 10B from the lower cover 20, and prevent dust from falling into the present invention during use and affecting the accuracy and service life of the present invention.

[0047] A motion transmission member A is connected to the rotating shaft of the first motor 10A, and the motion transmission member A is respectively connected to the first vane 30A and the second vane 30B to drive the first vane 30A and the second vane 30B to move relatively to adjust the aperture size.

[0048] The middle cover 40 is provided with a through hole A at a position corresponding to the aperture. The filter substrate 50 is placed on the middle cover 40 and the filter substrate 50 is provided with a through hole B. The infrared filter is installed at a position corresponding to the through hole B on the filter substrate 50; the through hole A and the through hole B do not affect the light filtering of the infrared filter.

[0049] A motion transmission member B is connected to the rotating shaft of the second motor 10B, and the motion transmission member B is connected to the filter substrate 50 to drive the filter substrate 50 to move so that the infrared filter selectively covers the aperture (selective covering means that the infrared filter can choose to cover or not cover the aperture).

[0050] Further, the motion transmission component A can adopt an existing structure that converts the rotation of a rotating shaft into linear motion, such as an existing lead screw mechanism, or a form in which a screw drives a moving block to move along the axial direction of the screw; if it is required that the overall structure of the shutter module is compact and small in size, the preferred solution of the present invention is that the motion transmission component A includes a first swing arm 12A and a second swing arm 12B fixedly installed on the rotating shaft of the first motor 10A, and the first swing arm 12A and the second swing arm 12B are circumferentially distributed along the rotating shaft of the first motor 10A. Long strip holes A and long strip holes B are respectively arranged on the first vane 30A and the second vane 30B, and the length directions of the long strip holes A and the long strip holes B are the same. A plurality of guide posts 25-2 are arranged on the upper cover 60, which are divided into a plurality of guide posts A and a plurality of guide posts B. Each guide post A extends into the long strip hole A so that the first vane 30A can move along the length direction of the long strip hole A, and the guide post A restricts the first vane 30A to only move longitudinally along the long strip hole A; each of the guide posts B extends into the long strip hole B so that the second vane 30B can only move along the length direction of the long strip hole B, and the guide post B restricts the second vane 30B to only move longitudinally along the long strip hole B, so that only relative movement can occur between the first vane 30A and the second vane 30B to change the relative positions of the first channel and the second channel. A first guide groove 31A serving as a moving channel for the first swing arm 12A is arranged on the first vane 30A, and a second guide groove 31B serving as a moving channel for the second swing arm 12B is arranged on the second vane 30B. The first swing arm 12A and the second swing arm 12B respectively extend into the first guide groove 31A and the second guide groove 31B, and the first swing arm 12A and the second swing arm 12B can respectively slide along the first guide groove 31A and the second guide groove 31B to drive the first vane 30A and the second vane 30B to move relatively when the rotating shaft of the first motor 10A rotates, so as to adjust the aperture size. The parts of the first swing arm 12A and the second swing arm 12B extending into the first guide groove 31A and the second guide groove 31B respectively can adopt a cylindrical structure, such as a bearing, or a relatively rotatable structure A and structure B that are hinged, and it is necessary not to affect the normal rotation of the rotating shaft of the motor and the normal movement of the first vane 30A and the second vane 30B. A limiting part 25-1 is arranged at the end of each guide post 25-2A and each guide post 25-2B to prevent the first vane 30A and the second vane 30B from falling off the guide posts 25-2A and the guide posts 25-2B.

[0051] Further, there are a plurality of the long strip holes A, and these long strip holes A are distributed on a plurality of straight lines and these straight lines are parallel to each other; there are a plurality of the long strip holes B, and these long strip holes B are distributed on a plurality of straight lines and these straight lines are parallel to each other. Corresponding to the long strip holes A and the long strip holes B, the guide posts 25-2 are also distributed in a plurality of straight lines. Being distributed in a plurality of straight lines can ensure that the first vane 30A and the second vane 30B move relatively smoothly.

[0052] Further, a guiding track is provided on the lower cover 20, and preferably, the length direction of the guiding track is the same as that of the long hole A, and the filter substrate 50 is installed on the guiding track; the guiding track can guide the movement of the filter substrate 50. Preferably, there are two guiding tracks in the present invention and they are parallel to each other. Each guiding track is formed by a plurality of arc-shaped bosses 26 arranged on the same straight line. The filter substrate 50 is clamped by these two guiding tracks, and then the filter substrate 50 contacts the arc-shaped bosses 26. The middle cover 40 of the present invention can not only limit the vane group in the vane chamber, but also support the filter substrate 50. An infrared filter is fixed in the middle of the filter substrate 50, and both sides of the filter substrate 50 contact the arc-shaped bosses 26 inside the lower cover 20. The arc-shaped bosses 26 can not only reduce the contact surface between the lower cover 20 and the filter substrate 50, making the movement of the filter substrate 50 smoother, but also limit the position of the filter substrate 50, so that the filter substrate 50 will not shift.

[0053] Further, the motion transmission component B can adopt an existing structure that converts the rotation of a rotating shaft into a linear motion, such as an existing lead screw mechanism, or a form in which a screw drives a moving block to move along the axial direction of the screw; if it is required that the overall structure of the shutter module is compact and small in size, then a preferred solution of the present invention is that the motion transmission component B includes a third swing arm 13 installed on the rotating shaft of the second motor 10B. A third guiding groove 52 serving as a moving channel for the third swing arm 13 is provided on the filter substrate 50. The third swing arm 13 extends into the third guiding groove 52 to drive the filter substrate 50 to move along the guiding track when the rotating shaft of the second motor 10B rotates, so that the filter substrate 50 moves to selectively cover the aperture with the infrared filter. The parts where the third swing arm 13 extends into the third guiding groove 52 respectively can adopt a cylindrical structure, such as a bearing, or a relatively rotatable structure A and structure B connected by a hinge, which is required not to affect the normal rotation of the rotating shaft of the second motor 10B and the normal movement of the filter substrate 50.

[0054] Further, the first vane 30A includes a first vane 30A body and a plurality of bumps 32, and each of the bumps 32 is provided on the surface of the first vane 30A body close to the second vane 30B to reduce the contact area and friction force between the first vane 30A and the second vane 30B;

[0055] and / or,

[0056] the second vane 30B includes a second vane 30B body and a plurality of bumps 32, and each of the bumps 32 is provided on the surface of the second vane 30B body close to the first vane 30A to reduce the contact area and friction force between the first vane 30A and the second vane 30B.

[0057] That is, the convex points 32 can be on the first vane 30A and / or the second vane 30B. The convex points 32 can lift the first vane 30A and the second vane 30B, reducing the friction caused by the relative movement between the vanes.

[0058] Furthermore, the middle cover 40 is fixedly installed on the lower cover 20 through the second buckle 41, which is convenient for installation.

[0059] Furthermore, there are two infrared filters, and the wavelengths of the light waves that they can penetrate and reflect are not equal. By moving the filter substrate 50, these two infrared filters can be switched, so as to use different infrared filters to cover the aperture. The second motor 10B drives the filter substrate 50 to move, so that the filter substrate 50 moves, and different infrared filters are switched according to different external environments and illuminations.

[0060] Furthermore, a plurality of positioning holes 63 are provided on the upper cover 60, and positioning posts 22 are respectively provided on the lower cover 20 at positions corresponding to the positioning holes 63. Each positioning post 22 extends into the positioning hole 63 at the corresponding position, so as to facilitate the positioning and installation of the upper cover 60.

[0061] Four cylindrical guide posts 25-2 are arranged inside the lower cover 20 of the present invention. The top of the guide post 25-2 is oval, and a limiting portion 25-1 protrudes by a section relative to the guide post 25-2. The guide post 25-2 is inserted into the long holes of the first vane 30A and the second vane 30B. The limiting portion 25-1 limits the positions of the first vane 30A and the second vane 30B, so that the first vane 30A and the second vane 30B will not fall off the guide post 25-2. The convex points of the first vane 30A and the second vane 30B can push the first vane 30A and the second vane 30B against each other, forming a gap between the first vane 30A and the second vane 30B, reducing the contact area between the first vane 30A and the second vane 30B, and further reducing the friction, making the relative movement between the first vane 30A and the second vane 30B smoother. After the first motor 10A is powered on and rotates, the first vane 30A and the second vane 30B are driven by the first swing arm 12A and the second swing arm 12B to move back and forth along the guide post 25-2, so that the aperture size can be changed. The guide post 25-2 mainly limits the moving direction of the first vane 30A and the second vane 30B, so that they can move parallelly without deviation.

[0062] The middle cover 40 of the present invention is fixedly buckled in five buckle grooves 23-2 around the lower cover 20 through five second buckles 41, and is covered on the vane receiving plane 23-1 on the inner wall of the lower cover 20, restricting the first vane 30A and the second vane 30B in the vane chamber. See Figure 8, the second buckle 41 is designed in an arrow shape, small at the front, protruding in the middle part, and tapering at the back, and can be inserted into elastic materials such as plastics. After pressing, the second buckle 41 deforms inward and is pressed into the buckle groove 23-2. After that, the part of the arrow umbrella cover at the front of the second buckle 41 is caught by the buckle groove 23-2. Such a design can not only limit the vane group in the vane chamber, but also ensure that the middle cover 40 will not fall off during the operation of the module, with higher safety.

[0063] The working process of the present invention is as follows:

[0064] The present invention is installed on the used device through the connection hole 65. After the first motor 10A is powered on and rotates, it drives a pair of symmetrical first swing arms 12A and second swing arms 12B to rotate, and then pulls / pushes a pair of first vanes 30A and second vanes 30B installed on the first swing arm 12A and the second swing arm 12B to move relatively, forming an opening and closing to adjust the size of the aperture. Similarly, after the second motor 10B is powered on, it drives the third swing arm 13 to rotate, and then pulls / pushes the filter substrate 50 to move back and forth, so that the first infrared filter 51A and the second infrared filter 51B fixedly installed on the filter substrate 50 are switched according to different needs.

[0065] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An infrared filter and aperture integrated shutter module driven by dual motors, characterized in that, It includes a housing, a middle cover, a vane group, a filter substrate, an infrared filter, a first motor and a second motor, where: The housing includes a lower cover and an upper cover fixedly connected together. A first light-transmitting hole is provided on the lower cover, and a second light-transmitting hole is provided on the upper cover at a position corresponding to the first light-transmitting hole; The middle cover, the vane group and the filter substrate are all located inside the housing and are all mounted on the housing. A vane chamber is formed between the middle cover and the lower cover, and the vane group is arranged in the vane chamber; The vane group includes a first vane and a second vane abutting against each other. A first hole passage on the first vane and a second hole passage on the second vane together form an aperture; The first motor and the second motor are both mounted on the housing; a motion transmission member A is connected to the rotating shaft of the first motor, and the motion transmission member A is respectively connected to the first vane and the second vane to drive the first vane and the second vane to move relatively to adjust the aperture size; The middle cover is provided with a through hole A at a position corresponding to the aperture. The filter substrate is placed on the middle cover and the filter substrate is provided with a through hole B. The infrared filter is mounted at a position corresponding to the through hole B on the filter substrate; a motion transmission member B is connected to the rotating shaft of the second motor, and the motion transmission member B is connected to the filter substrate to drive the filter substrate to move so that the infrared filter selectively covers the aperture; The motion transmission member A includes a first swing arm and a second swing arm fixedly mounted on the rotating shaft of the first motor, and the first swing arm and the second swing arm are circumferentially distributed along the rotating shaft of the first motor. Long strip holes A and long strip holes B are respectively provided on the first vane and the second vane, and the length directions of the long strip holes A and the long strip holes B are the same. A plurality of guide posts A and a plurality of guide posts B are provided on the upper cover. Each guide post A extends into the long strip hole A so that the first vane moves along the length direction of the long strip hole A. Each guide post B extends into the long strip hole B so that the second vane moves along the length direction of the long strip hole B; A first guide groove serving as a moving channel for the first swing arm is provided on the first vane, and a second guide groove serving as a moving channel for the second swing arm is provided on the second vane. The first swing arm and the second swing arm respectively extend into the first guide groove and the second guide groove to drive the first vane and the second vane to move relatively to adjust the aperture size when the rotating shaft of the first motor rotates; A guide track is provided on the lower cover, and the filter substrate is mounted on the guide track; The motion transmission member B includes a third swing arm mounted on the rotating shaft of the second motor. A third guide groove serving as a moving channel for the third swing arm is provided on the filter substrate. The third swing arm extends into the third guide groove to drive the filter substrate to move along the guide track when the rotating shaft of the second motor rotates, so that the infrared filter selectively covers the aperture.

2. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 1, wherein There are multiple long strip holes A, and these long strip holes A are distributed on multiple straight lines and these straight lines are parallel to each other; There are multiple long strip holes B, and these long strip holes B are distributed on multiple straight lines and these straight lines are parallel to each other.

3. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 2, wherein There are two guide rails which are parallel to each other. Each guide rail is formed by a plurality of arc-shaped bosses arranged on the same straight line. The filter substrate is clamped by the two guide rails.

4. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 1, wherein The first feather comprises a first feather body and a plurality of convex points, each of the convex points being arranged on a side of the first feather body close to the second feather, so as to reduce the contact area and friction between the first feather and the second feather; and / or, The second feather comprises a second feather body and a plurality of convex points, and each of the convex points is arranged on a side of the second feather body close to the first feather to reduce the contact area and friction between the first feather and the second feather.

5. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 1, characterized in that, The first motor and the second motor are respectively mounted on the housing through buckles, and an I-shaped buckle is respectively mounted on each of the buckles to prevent the buckle from falling off the housing.

6. The dual-motor-driven integrated infrared filter and aperture shutter module according to claim 1, wherein, The middle cover is fixedly mounted on the lower cover by buckles.

7. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 1, wherein, The infrared filters consist of two pieces, and the wavelengths of light waves that can be transmitted and reflected by them are not equal.

8. The dual-motor-driven infrared filter and aperture integrated shutter module according to claim 1, wherein The lower cover is provided with dust cover plate positioning platforms at positions corresponding to the first motor and the second motor, respectively. The dust cover plate is mounted on the dust cover plate positioning platforms by snap buckles, so as to achieve dust-proof sealing between the first motor and the second motor and the lower cover respectively.

Images