Dual filter switcher and camera device

Abstract

This invention provides a dual filter switcher and a camera device, relating to the field of photography technology, to solve the technical problem of poor light sensitivity. The dual filter switcher contains a chip and includes a housing, a dual filter assembly, a driving device, and a cleaning brush disposed within the housing. The dual filter assembly is positioned above the chip and spaced apart from it. The driving device is connected to the dual filter assembly via a transmission mechanism, causing the dual filter assembly to move. The cleaning brush is fixedly connected to the side of the dual filter assembly facing the chip and cleans the surface of the chip facing the dual filter assembly as the dual filter assembly moves. By cleaning the surface of the chip facing the dual filter assembly with the movement of the cleaning brush, the chip is kept clean, improving light sensitivity and thus enhancing image quality. The self-cleaning of the chip is achieved by switching the position of the dual filter assembly; the structure is relatively simple and easy to implement.

Description

Technical Field

[0001] This invention relates to the field of photography technology, and more particularly to a dual filter switcher and a camera device. Background Technology

[0002] With the rapid development of imaging equipment, various scenarios such as industrial and agricultural production, intelligent transportation, medical and home applications, and security monitoring now utilize camera devices for multi-light source imaging both day and night. To achieve clear imaging in both day and night, camera devices include an Infrared Cut (IR-CUT), which corrects color casts during the day and improves brightness at night. However, dust particles often accumulate inside the IR-CUT, affecting its light-sensing performance. Summary of the Invention

[0003] In view of the above problems, the present invention provides a dual filter switcher and a camera device to improve the light sensitivity of the dual filter switcher.

[0004] To achieve the above objectives, a first aspect of the present invention provides a dual filter switcher, wherein a chip is disposed within the dual filter switcher, and the dual filter switcher includes a housing, and a dual filter assembly, a driving device, and a cleaning brush disposed within the housing;

[0005] The dual filter assembly is disposed above the chip and spaced apart from the chip. The driving device is connected to the dual filter assembly via transmission and drives the dual filter assembly to move. The cleaning brush is fixedly connected to the side of the dual filter assembly facing the chip and cleans the surface of the chip facing the dual filter assembly as the dual filter assembly moves.

[0006] In some possible embodiments, the dual filter assembly includes a movable plate, a first filter, and a second filter;

[0007] The movable plate is connected to the driving device. The movable plate is provided with two slots that penetrate the movable plate. The two slots are spaced apart along a first direction. The first filter and the second filter respectively cover the two slots.

[0008] In some possible embodiments, the first filter and the second filter are fixedly disposed on the top surface of the movable plate, and the cleaning brush is fixedly disposed on the bottom surface of the movable plate and located between the two slots.

[0009] In some possible embodiments, the first filter and the second filter are fixedly disposed on the bottom surface of the movable plate, and the cleaning brush is fixedly disposed on the bottom surface of the first filter and / or the second filter, and is located between the two slots.

[0010] In some possible embodiments, the first filter and the second filter are in contact, the cleaning brush is located on the bottom surface of the first filter and extends to the bottom surface of the second filter, and the cleaning brush is bonded to both the first filter and the second filter.

[0011] In some possible embodiments, the dual filter switcher is further provided with a dust-catching adhesive, which is located inside the housing and disposed on opposite sides of the chip along the first direction.

[0012] In some possible embodiments, the bottom surface of the cleaning brush is lower than the top surface of the chip, and both ends of the cleaning brush extend outward from the chip along a second direction, which intersects with the first direction.

[0013] In some possible embodiments, along the first direction, the length of both slots is greater than the length of the chip, and when the slots are directly opposite the chip, the cleaning brush is located beside the chip.

[0014] In some possible embodiments, the first filter is an infrared cutoff filter, and the second filter is a full-spectrum filter.

[0015] The dual filter switcher provided in this invention contains a chip. The dual filter switcher includes a housing, a dual filter assembly, a driving device, and a cleaning brush. The dual filter assembly is moved by the driving device. A cleaning brush is positioned on the side of the dual filter assembly facing the chip. The cleaning brush cleans the surface of the chip facing the dual filter assembly (i.e., the top surface) as the dual filter assembly moves, removing dust particles from the top surface of the chip, keeping the chip clean, ensuring the photographed image is free of black spots and dirt, improving light sensitivity, and thus improving image quality. Simultaneously, the chip self-cleaning is achieved by switching the position of the dual filter assembly, eliminating the need for an additional power source. The dual filter switcher has a relatively simple structure and is easy to implement.

[0016] A second aspect of this invention provides a camera device, comprising a dual filter switch as described above, a camera disposed on the dual filter switch, and a chip disposed within the dual filter switch, the chip being opposite to the camera. The camera device includes a dual filter switch, thus possessing at least the advantage of good image quality; specific effects are described above and will not be repeated here.

[0017] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the dual filter switcher and camera device provided by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the camera device in an embodiment of the present invention;

[0020] Figure 2 This is an assembly diagram of the camera device in an embodiment of the present invention;

[0021] Figure 3 This is the second position of the dual filter assembly in this embodiment of the invention;

[0022] Figure 4 This is a schematic diagram of the cleaning brush cleaning chip in an embodiment of the present invention;

[0023] Figure 5 This is the second position of the dual filter assembly in this embodiment of the invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10 - Camera device;

[0026] 11-Camera;

[0027] 12-Shell;

[0028] 13-U-shaped magnet;

[0029] 14-Magnetic block;

[0030] 15-Chip;

[0031] 16-Dust-collecting adhesive;

[0032] 17-Motherboard;

[0033] 21-Mobile board;

[0034] 22-Card slot;

[0035] 23-First filter;

[0036] 24 - Second filter;

[0037] 25 - Cleaning brush. Detailed Implementation

[0038] The dual-filter switcher in related technologies suffers from poor light sensitivity. The inventors' research revealed that this is because: dual-filter switchers typically include a dual-filter assembly, which is a movable structure requiring repeated switching. This assembly is prone to friction and shedding, resulting in dust particles on the chip, affecting light sensitivity and causing black spots in the image, thus impacting image quality. Furthermore, dual-filter switchers often require assembly, and dust particles are introduced during assembly and use, further affecting light sensitivity.

[0039] To address this, this invention provides a dual filter switcher. The dual filter switcher contains a chip. A cleaning brush is positioned on the side of the dual filter assembly facing the chip. As the dual filter assembly moves, the cleaning brush cleans the surface of the chip facing the dual filter assembly (i.e., the top surface), keeping the chip clean, improving light sensitivity, and thus enhancing image quality. Simultaneously, the chip's self-cleaning is achieved by switching the position of the dual filter assembly, eliminating the need for an additional power source. The dual filter switcher has a simple structure and is easy to implement.

[0040] To make the above-mentioned objectives, features, and advantages of the embodiments of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] See Figures 1 to 5 This invention provides a dual-filter switcher, which includes a chip 15 internally adapted to the switcher. The dual-filter switcher comprises a housing 12, a dual-filter assembly, a driving device, and a cleaning brush 25. The housing 12 includes an upper housing and a lower housing, which are sealed together to form a receiving space. This receiving space is sealed to prevent light leakage from affecting imaging. The upper housing has a mounting hole communicating with the receiving space, and a camera 11 is mounted within the mounting hole.

[0042] The dual filter assembly, driving device, cleaning brush 25, and chip 15 are all housed within the housing 12, meaning they are located within the accommodating space of the housing 12. Chip 15 is used for imaging. Chip 15 is located below and spaced apart from the dual filter assembly. For example, chip 15 may be located on the bottom wall of the accommodating space, opposite the mounting hole, and thus opposite the camera 11. The top surface of chip 15 can be perpendicular to the axis of the mounting hole, so that the camera 11 is perpendicular to chip 15, improving image quality.

[0043] The dual filter assembly is connected to a driving device, which moves the dual filter assembly, for example, by moving it along a first direction, so that the dual filter assembly can switch filters to allow different light to pass through. When the dual filter assembly is in the first position, the first filter 23 in the dual filter assembly is located above the chip 15, that is, the first filter 23 is located between the chip 15 and the camera 11; when the dual filter assembly is in the second position, the second filter 24 in the dual filter assembly is located above the chip 15, that is, the second filter 24 is located between the chip 15 and the camera 11.

[0044] In some examples, the dual-filter assembly includes a movable plate 21, a first filter 23, and a second filter 24. The movable plate 21 is connected to a driving device. The driving device moves the movable plate 21, and the first filter 23 and the second filter 24 are fixedly connected to the movable plate 21 so that the first filter 23 and the second filter 24 move synchronously with the movable plate 21, thereby realizing the switching of the first filter 23 and the second filter 24, and thus realizing the filter switching of the dual-filter assembly.

[0045] The movable plate 21 is provided with two slots 22, which penetrate the surface of the movable plate 21 and are spaced apart along the first direction, that is, the two slots 22 are side by side and spaced apart. The two slots 22 can be the same in shape and size, and both slots 22 can be square or rectangular.

[0046] The two slots 22 are respectively adapted to the first filter 23 and the second filter 24, and are respectively covered by the first filter 23 and the second filter 24. That is, the two slots 22 are respectively opposite to the first filter 23 and the second filter 24, and the size of the first filter 23 and the second filter 24 is greater than or equal to the size of the slot 22.

[0047] The first filter 23 covers one of the two slots 22, and the second filter 24 covers the other slot 22. That is, the orthographic projection of the first filter 23 on the moving plate 21 covers the corresponding slot 22, and the orthographic projection of the second filter 24 on the moving plate 21 covers the opposite slot 22, so that all the light entering the chip 15 passes through the first filter 23 and the second filter 24 for filtering.

[0048] Among them, the first filter 23 is an infrared cutoff filter, and the second filter 24 is a full-spectrum transmission filter. For example... Figure 2 As shown, the first filter 23 and the second filter 24 are arranged side by side, with the first filter 23 located on the left and the second filter 24 located on the right.

[0049] When the dual filter assembly is in the first position, the infrared cut-off filter is located directly above the chip 15. The infrared cut-off filter is active, absorbing infrared light to prevent color distortion, allowing the chip 15 to reproduce true colors. When the dual filter assembly is in the second position, the full-transmittance filter is located directly above the chip 15, meaning the infrared cut-off filter is removed. Because the full-transmittance filter can refract and transmit infrared light, the chip 15 can fully utilize all light, increasing the amount of light entering and improving night vision performance.

[0050] In some possible examples, the first filter 23 and the second filter 24 are fixedly disposed on the top surface of the movable plate 21, and the cleaning brush 25 is fixedly disposed on the bottom surface of the movable plate 21 and located between the two slots 22. The first filter 23 and the second filter 24 are fixedly disposed (e.g., bonded) on the surface of the movable plate 21 opposite to the chip 15, that is, the first filter 23 and the second filter 24 are located on the same side of the movable plate 21 and on a different side of the movable plate 21 from the chip 15.

[0051] In the example above, the cleaning brush 25 is fixedly mounted (e.g., bonded) to the surface of the moving plate 21 facing the chip 15, so that the cleaning brush 25 is opposite to the chip 15, thereby cleaning the top surface of the chip 15. To avoid the cleaning brush 25 affecting the photosensitivity of the chip 15, the cleaning brush 25 is disposed on the moving plate 21 between the two slots 22. With this arrangement, as the moving plate 21 moves, the cleaning brush 25 sweeps across the top surface of the chip 15 to clean it. And when the moving plate 21 stops moving, the chip 15 is opposite to one slot 22, thus offset from the cleaning brush 25 between the two slots 22.

[0052] In some other possible examples, the first filter and the second filter 24 are fixedly disposed on the bottom surface of the moving plate 21, and the cleaning brush 25 is fixedly disposed on the bottom surface of the first filter 23 and / or the second filter 24, and located between the two slots 22. The first filter 23 and the second filter 24 are fixedly disposed (e.g., bonded) on the surface of the moving plate 21 facing the chip 15, that is, the first filter 23, the second filter 24 and the chip 15 are located on the same side of the moving plate 21.

[0053] In the above example, the cleaning brush 25 is fixedly disposed (e.g., bonded) to the surface of the first filter 23 and / or the second filter 24 facing the chip 15, so that the cleaning brush 25 is opposite to the chip 15, thereby cleaning the top surface of the chip 15. To avoid the cleaning brush 25 affecting the light filtering of the chip 15, the cleaning brush 25 is located between the two slots 22. With this arrangement, as the moving plate 21 moves, the cleaning brush 25 sweeps across the top surface of the chip 15 to clean the top surface of the chip 15. And when the moving plate 21 stops moving, the chip 15 is opposite to one slot 22, thereby offsetting the cleaning brush 25 between the two slots 22.

[0054] In some possible implementations, the first filter 23 and the second filter 24 are in contact, and the cleaning brush 25 is located on the bottom surface of the first filter 23 and extends to the bottom surface of the second filter 24. The cleaning brush 25 is bonded to both the first filter 23 and the second filter 24. Figure 2 As shown, the first filter 23 and the second filter 24 are adjacent to each other so that the first filter 23 and the moving plate 21, and the second filter 24 and the moving plate 21 have a large contact area, so that the first filter 23 and the moving plate 21, and the second filter 24 and the moving plate 21 are firmly bonded together, thus preventing the first filter 23 and the second filter 24 from falling off.

[0055] Because the first filter 23 and the second filter 24 are in contact, the moving plate 21 between the two slots 22 partially contacts the first filter 23 and partially contacts the second filter 24. Correspondingly, the cleaning brush 25 can be partially bonded to the first filter 23 and partially bonded to the second filter 24. The contact portions of the cleaning brush 25 with the first filter 23 and the second filter 24 are opposite each other and are bonded to both. The orthographic projection of the cleaning brush 25 on the moving plate 21 partially overlaps with the orthographic projection of the first filter 23 on the moving plate 21, and also partially overlaps with the orthographic projection of the second filter 24 on the moving plate 21.

[0056] Continue reading Figure 2The bottom surface of the cleaning brush 25 is lower than the top surface of the chip 15, and both ends of the cleaning brush 25 extend outward from the chip 15 along the second direction, which intersects the first direction, for example, perpendicularly. That is, the surface of the cleaning brush 25 facing the chip 15 is lower than the surface of the chip 15 facing the cleaning brush 25, the top surface of the chip 15 is higher, and the bottom surface of the cleaning brush 25 is lower. The cleaning brush 25 remains flush with the surface of the chip 15, so that the cleaning brush 25 can fully contact the top surface of the chip 15 when it moves with the moving plate 21, thereby achieving cleaning of the chip 15.

[0057] The width of the cleaning brush 25 along the second direction is greater than the width of the chip 15, so that both ends of the cleaning brush 25 along the second direction are exposed at both ends of the chip 15. This allows the cleaning brush 25 to clean the entire top surface of the chip 15 as it moves with the moving plate 21, resulting in a good cleaning effect. The extension direction of the cleaning brush 25 can be parallel to the second direction, and the cleaning brush 25 can be a fiber brush.

[0058] Understandably, the cleaning area of ​​the cleaning brush 25 is a parallelogram, determined by the width of the cleaning brush 25 along the second direction and the distance the cleaning brush 25 moves along the first direction. When the top surface of the chip 15 is located in the cleaning area, the cleaning brush 25 can clean the entire top surface of the chip 15 in one unidirectional movement, resulting in good cleaning effect.

[0059] Continue reading Figure 2 Along the first direction, the length of both slots 22 is greater than the length of the chip 15. When the slots 22 and the chip 15 are directly opposite each other, the cleaning brush 25 is located next to the chip 15 to ensure that when the dual filter assembly is in the first or second position, the cleaning brush 25 and the chip 15 are staggered to avoid the cleaning brush 25 blocking the chip 15 and affecting the light filtering of the chip 15.

[0060] The cleaning process for cleaning brush 25 is as follows: Please refer to the following steps. Figure 3 , Figure 4 and Figure 5 When the dual filter assembly moves from the first position to the second position, the cleaning brush 25 moves from the first side of the chip 15 to the second side, for example, from the left side of the chip 15 to the right side of the chip 15. When the dual filter assembly moves from the second position to the first position, the cleaning brush 25 moves from the second side of the chip 15 to the first side of the chip 15, for example, from the right side of the chip 15 to the left side of the chip 15.

[0061] During the repeated switching between the first and second positions of the dual filter assembly, the filters in the dual filter assembly can be repeatedly switched and freely positioned. At the same time, the cleaning brush 25 can be used to sweep back and forth across the top surface of the chip 15 to clean the dust particles on the top surface, keep the chip 15 clean, and ensure that the image is free of black spots and dirt, thereby improving the image quality and improving the shooting quality. Simultaneously, in actual development, it can improve the product yield and control costs.

[0062] Simultaneously, the self-cleaning of particles on the die (POD) on the chip 15 is achieved by switching the position of the dual filter assembly. This means that the switching action of the dual filter assembly and the cleaning action of the cleaning brush 25 are performed simultaneously, without requiring an additional power unit. The dual filter switcher has a relatively simple structure and is easy to implement. By using the cleaning brush 25 to clean the chip 15, compared to assembling a dustproof glass, the cleaning brush 25 does not obstruct the dual filter assembly during operation, reducing optical path loss in the optical system. This allows the chip 15 to receive more light, improving the brightness of the image and reducing glare caused by the use of optical glass.

[0063] To prevent dust particles swept off the chip 15 from floating inside the housing 12, a dust-catching adhesive 16 is also provided inside the dual filter switcher. The dust-catching adhesive 16 is located inside the housing 12 and is positioned on opposite sides of the chip 15 along the first direction. The dust-catching adhesive 16 adsorbs dust particles, causing them to reach the side of the chip 15 and adhere to the dust-catching adhesive 16, thus preventing the dust particles from falling back onto the chip 15 and ensuring clear imaging of the chip 15.

[0064] The dust-catching adhesive 16 can be positioned on opposite sides of the chip 15 along the first direction, meaning the position of the dust-catching adhesive 16 is consistent with the cleaning direction of the cleaning brush 25. This allows for better adsorption of dust particles while saving space within the housing 12. The dust-catching adhesive 16 can be a UV-cured dust-catching adhesive 16 (i.e., UV dust-catching adhesive 16), which utilizes electrostatic adsorption to attract dust particles, resulting in a better adsorption effect.

[0065] like Figures 3 to 5 As shown, during the process of the first filter 23 switching from left to right to above the chip 15, the cleaning brush 25 contacts the top surface of the chip 15 and sweeps away dust particles from left to right. The dust particles fall into the dust-collecting adhesive 16 area on the right side of the chip 15. During the process of the second filter 24 switching from right to left to above the chip 15, the cleaning brush 25 contacts the top surface of the chip 15 and sweeps away dust particles from right to left. The dust particles fall into the dust-collecting adhesive 16 area on the left side of the chip 15.

[0066] Continue reading Figure 1 and Figure 2 The drive unit can be housed within the upper housing, specifically by a recess in the upper housing where the drive unit is installed. The drive unit may include a U-shaped magnet 13, a magnetic block 14, a swing arm, and a wire frame.

[0067] The U-shaped magnet 13 has an electromagnetic induction port at the front end and a wire frame mounting position at the rear end. A magnetic block 14 is installed inside the electromagnetic induction port, and a wire frame is installed in the wire frame mounting position, with the wire frame fitted onto the wire frame mounting position.

[0068] The wire frame is equipped with a coil and two pins for providing a channel for the coil. The coil is a loop wound on the wire frame. The two pins are connected to the loop and to the terminal wire. The terminal wire is located on the outside of the housing 12 and is inserted into the two pins.

[0069] The magnetic block 14 is connected to the dual filter assembly via a swing arm, for example, to the movable plate 21. Specifically, the movable plate 21 has a through-hole, and one end of the swing arm has a connector that is movably engaged with the through-hole. The bottom of the swing arm is fixed to the magnetic block 14; for example, the top surface of the magnetic block 14 has a mounting hole, and the bottom of the swing arm is engaged within the mounting hole of the magnetic block 14.

[0070] When current is supplied to the coil via the terminal wire, the current flowing through the coil magnetizes the U-shaped magnet 13. The U-shaped magnet 13 generates a magnetic field, which, under the influence of electromagnetic induction, produces a magnetic force that drives the magnetic block 14 to rotate. The pendulum fixed to the magnetic block 14 swings as the magnetic block 14 rotates. By changing the direction of the current flowing through the coil, the direction of the magnetic field generated by the U-shaped magnet 13 can be changed, causing the magnetic block 14 to rotate in different directions under the influence of different magnetic fields. This, in turn, pulls the dual filter assembly to reciprocate, realizing the switching between the first filter 23 and the second filter 24.

[0071] In some possible examples, a main board 17 is also provided inside the housing 12. The main board 17 can be a flexible printed circuit (FPC). The main board 17 has components that identify the illuminance and provides signals based on the illuminance to control the power supply of the drive device. When there is sufficient light during the day, the main board 17 drives the switcher to switch and position to the first filter 23 through circuit control. When there is insufficient light at night, the main board 17 drives the switcher to switch and position to the second filter 24 through circuit control.

[0072] In summary, the dual filter switcher in this embodiment of the invention includes a housing 12, a dual filter assembly, a driving device, and a cleaning brush 25. The dual filter assembly is moved by the driving device. The cleaning brush 25 is located on the side of the dual filter assembly facing the chip 15. The cleaning brush 25 cleans the surface of the chip 15 facing the dual filter assembly as the dual filter assembly moves, removing dust particles from the surface of the chip 15, keeping the chip 15 clean, ensuring the photographed image is free of black spots and dirt, improving light sensitivity, and thus improving image quality. Simultaneously, the chip 15 is self-cleaned by switching the position of the dual filter assembly, eliminating the need for an additional power source. The dual filter switcher has a relatively simple structure and is easy to implement.

[0073] This invention also provides a camera device 10, see below. Figure 1The camera device 10 includes a dual filter switcher, a camera 11 mounted on the dual filter switcher, and a chip 15 disposed within the dual filter switcher, with the chip 15 facing the camera 11. Since the camera device 10 includes a dual filter switcher, it at least has the advantage of good image quality; specific effects are described above and will not be repeated here.

[0074] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual filter switcher, characterized in that, The dual filter switcher contains a chip and includes a housing, as well as a dual filter assembly, a drive device, and a cleaning brush disposed within the housing. The dual filter assembly is disposed above the chip and spaced apart from the chip. The driving device is connected to the dual filter assembly and drives the dual filter assembly to move. The cleaning brush is fixedly connected to the side of the dual filter assembly facing the chip and cleans the surface of the chip facing the dual filter assembly as the dual filter assembly moves to switch filters. The dual filter assembly includes a movable plate, a first filter, and a second filter; The movable plate is connected to the driving device. The movable plate is provided with two slots that penetrate the movable plate. The two slots are spaced apart along a first direction. The first filter and the second filter respectively cover the two slots. The first filter and the second filter are fixedly disposed on the top surface of the movable plate, and the cleaning brush is fixedly disposed on the bottom surface of the movable plate and located between the two slots; or, the first filter and the second filter are fixedly disposed on the bottom surface of the movable plate, and the cleaning brush is fixedly disposed on the bottom surface of the first filter and / or the second filter and located between the two slots. Along the first direction, the length of both slots is greater than the length of the chip, and when the slots are directly opposite the chip, the cleaning brush is located beside the chip. The bottom surface of the cleaning brush is lower than the top surface of the chip, and both ends of the cleaning brush extend outward from the chip along the second direction, which intersects with the first direction.

2. The dual filter switcher according to claim 1, characterized in that, The dual filter switcher is also equipped with a dust-collecting adhesive, which is located inside the housing and disposed on opposite sides of the chip along the first direction.

3. The dual filter switcher according to claim 1, characterized in that, The first filter is an infrared cutoff filter, and the second filter is a full-spectrum filter.

4. A camera device, characterized in that, The device includes a dual filter switcher as described in any one of claims 1-3, a camera disposed on the dual filter switcher, and a chip disposed within the dual filter switcher, the chip being opposite to the camera.

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