CN114527616B

CN114527616B - Video camera system

Info

Publication number: CN114527616B
Application number: CN202210137865.7A
Authority: CN
Inventors: 谢清伟
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2023-09-26
Anticipated expiration: 2042-02-15
Also published as: CN114527616A

Abstract

The application provides a camera system which comprises a base, a sensor, a light filter support, a driving device, a light filter and a buffer component. The sensor is fixed on the base. The optical filter support is rotatably arranged on the base and comprises a first position and a second position, and the optical filter support can be rotatably switched between the first position and the second position. The driving device comprises a rotating shaft, and the rotating shaft extends to the optical filter support and is connected with the optical filter support. The optical filter comprises a first optical filter and a second optical filter, the first optical filter and the second optical filter are fixed on the optical filter support, the first optical filter faces the sensor when the optical filter support is in a first position, and the second optical filter faces the sensor when the optical filter support is in a second position. The buffer component is arranged on the base and positioned on the rotating path of the optical filter support and is used for colliding with the optical filter support so as to reduce the speed of the optical filter support. The rotating shaft is directly connected with the optical filter support, so that the switching speed of the optical filter support is higher.

Description

Video camera system

Technical Field

The application relates to the technical field of cameras, in particular to a camera system.

Background

The double-light fusion adopts a scheme that an optical filter is rapidly switched between two frames of exposure of a sensor, so that the front frame and the rear frame are exposed through different optical filters, and then the two frames of images are fused. However, this scheme has high requirements on the switching speed of the optical filter, and the switching speed of the optical filter in the related art is slow, which is far from the requirements.

Disclosure of Invention

The application provides a camera system for solving the problem of low switching speed of an optical filter.

The present application provides a camera system including:

a base;

the sensor is fixed on the base;

the optical filter support is rotatably arranged on the base and comprises a first position and a second position, and the optical filter support can be rotatably switched between the first position and the second position;

the driving device comprises a rotating shaft, and the rotating shaft extends towards the optical filter support and is connected with the optical filter support; a kind of electronic device with high-pressure air-conditioning system

The optical filter comprises a first optical filter and a second optical filter, the first optical filter and the second optical filter are fixed on the optical filter support, when the optical filter support is in the first position, the first optical filter faces the sensor, and when the optical filter support is in the second position, the second optical filter faces the sensor.

Optionally, the camera system includes a buffer assembly, where the buffer assembly is disposed on the base and is located on a rotation path of the filter support, and is configured to collide with the filter support, so as to slow down the filter support to the first position or the second position.

Optionally, the buffer assembly includes a first buffer assembly and a second buffer assembly, where the first buffer assembly and the second buffer assembly are separately disposed on the base on a rotation path of the filter support, the first buffer assembly is used to collide with the filter support when the filter support rotates from the first position to the second position, and the second buffer assembly is used to collide with the filter support when the filter support rotates from the second position to the first position.

Optionally, the optical filter support includes a support main body portion and a protrusion, the support main body portion is connected with the driving device, the optical filter is disposed on the support main body portion, and the protrusion is convexly disposed on a side surface of the support main body portion facing the buffer assembly, and is used for colliding with the first buffer assembly and the second buffer assembly; and/or

The optical filter support is arranged on the base in a reciprocating rotation mode between the first position and the second position, and the first buffer component and the second buffer component are arranged on two opposite sides of the rotating shaft of the driving device.

Optionally, the buffer assembly includes a blocking member and a buffer block, the buffer block is movably disposed on the base, the blocking member is fixed on the base and located on a movement path of the buffer block, and the buffer block moves to strike the blocking member when the buffer block is collided by the filter support.

Optionally, the buffer assembly includes a buffer elastic member, the buffer elastic member includes a first end and a second end, the first end is fixed to the buffer block, the buffer elastic member bypasses the buffer block from the first end to the buffer block extends outward, and the second end is located outside the buffer block and extends to the rotation path of the filter support, so as to collide with the filter support.

Optionally, the base includes relative first face and second face, the light filter support is located first face, drive arrangement locates the second face, the barrier with the buffer block is located the second face, the second end of buffering elastic component is located first face.

Optionally, the base includes a base body portion and a mounting portion connected to the base body portion, and the driving device and the filter support are mounted on the base body portion; the buffer block comprises a connecting part and an acting part, the connecting part is rotatably connected to the mounting part, the buffer elastic piece is arranged between the connecting part and the mounting part, the acting part is connected with the connecting part and is positioned outside the mounting part and used for impacting the blocking piece, and the blocking piece is arranged between the mounting part and the driving device.

Optionally, the buffer assembly includes a reset elastic member, one end of the reset elastic member is fixed on the buffer block, the reset elastic member bypasses the buffer block and extends outwards of the buffer block, the other end of the reset elastic member is located outside the buffer block and is abutted with the base, and after the buffer block impacts the blocking member, the reset elastic member enables the buffer block to move and reset in a direction away from the blocking member; and/or

The buffer assembly further comprises a limiting piece, the limiting piece is fixed on the base and is separated from the blocking piece, the buffer assembly extends to the position between the blocking piece and the limiting piece and can move between the blocking piece and the limiting piece, and when the optical filter support is located at the first position or the second position, the buffer block is separated from the blocking piece and is propped against the limiting piece.

Optionally, the camera system includes a magnetic part and a magnetic matching part matched with the magnetic part, the magnetic part is arranged on the base, the magnetic matching part is arranged on the optical filter support, and when the optical filter support is positioned at the first position and the second position, the magnetic part adsorbs the magnetic matching part.

Optionally, the number of the magnetic pieces is consistent with the number of the optical filters; and/or

The magnetic parts comprise a first magnetic part and a second magnetic part, the first magnetic part and the second magnetic part are arranged on the driving device in a separated mode, when the optical filter support is located at a first position, the first magnetic part adsorbs the magnetic matching part, and when the optical filter support is located at a second position, the second magnetic part adsorbs the magnetic matching part.

The camera system provided by the application comprises the driving device, the optical filter support and the optical filter, wherein the optical filter is fixed on the optical filter support, the driving device comprises a rotating shaft, the rotating shaft extends to the optical filter support, the rotating shaft of the driving device is connected with the optical filter support, so that the driving device can be directly connected with the optical filter support, and the driving device can directly drive the optical filter support to rotate, thereby enabling the switching speed of the optical filter support between a first position and a second position to be faster, enabling the first optical filter and the second optical filter to be rapidly switched, and further enabling the double-light fusion image effect to be better.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is an exploded view of a camera system according to an exemplary embodiment of the present application;

FIG. 2 is a perspective view of the camera system of FIG. 1 with the base removed;

FIG. 3 is a schematic plan view of the filter holder of the camera system of FIG. 1 in a first position;

FIG. 4 is a schematic plan view of the filter holder of the camera system of FIG. 1 in a second position;

fig. 5 is a schematic plan view of the other side of the camera system shown in fig. 1.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

In the related art, the double-light fusion can be regarded as the combination of a visible light channel and an infrared light channel, wherein the visible light channel can show real-time dynamic state of a target, and the effect is equivalent to that of a camera; the infrared light channel can exhibit a field temperature difference in a thermal image manner. The double-light fusion scheme comprises two schemes, namely a pure optical scheme, namely that light is split into two sensors through a prism and then fused, and the scheme has higher requirements on precision and higher cost. Another scheme is to rapidly switch the optical filter between two frames of exposure of a sensor and then fuse the two frames of images, and the scheme has high requirements on the switching speed of the optical filter.

The application provides a camera system. The camera system of the present application will be described in detail with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.

Fig. 1 shows an exploded view of a camera system 10 according to an exemplary embodiment of the present application.

Referring to fig. 1, the present application provides a camera system 10 comprising a base 11, a filter holder 22, a driving device 25, and a filter 27. Fig. 2 is a schematic perspective view of the camera system 10 of fig. 1 with the base 11 removed. The camera system 10 comprises a sensor 21. In some embodiments, the base 11 may be substantially plate-shaped. A sensor 21 (see fig. 2) is fixed to the base 11 for sensing light passing through the filter 27. The camera system 10 includes a main board 44, and the main board 44 is fixed to the base 11. In some embodiments, the motherboard 44 and the filter support 22 are disposed on opposite sides of the chassis 11. In other embodiments, the motherboard 44 and the filter support 22 are disposed on the same side of the chassis 11. The sensor 21 is provided on the main board 44. The sensor 21 may be provided on a side of the main board facing the filter holder 22. In some embodiments, the base 11 is provided with light holes 53, the light holes 53 communicate with opposite sides of the base 11, and the sensor 21 can sense light passing through the filter 27 through the light holes 53.

The filter support 22 is rotatably disposed on the base 11, and the filter support 22 includes a first position and a second position, and the filter support 22 is rotatably switched between the first position and the second position. The filter holder 22 is rotatable relative to the base 11 parallel to the base 11. The filter holder 22 includes a holder body 23 and a connecting shaft 45 connected to the holder body, and the connecting shaft 45 is provided at the center of the holder body 23.

Referring to fig. 1 and 2, the driving device 25 includes a rotation shaft 26, and the rotation shaft 26 extends toward the filter support 22, is connected to the filter support 22, and provides power to the filter support 22 as a power source. The driving device 25 may be a device driven by a motor or the like. The rotating shaft 26 of the driving device 25 is directly connected with the filter support 22, so that the transmission structure is simplified, and the switching speed of the filter support 22 is higher. In some embodiments, the connecting shaft 45 extends toward the drive 25, and the shaft 26 interfaces with the connecting shaft 45. The rotating shaft 26 and the connecting shaft 45 are directly and fixedly connected, and other components can be omitted in the middle. In this embodiment, the rotating shaft 26 and the connecting shaft 45 of the filter support 22 are fixed together by interference connection, so that the fixing manner is more firm and not easy to separate.

FIG. 3 is a schematic plan view of the filter holder of the camera system of FIG. 1 in a first position; fig. 4 is a schematic plan view of the filter holder of the camera system of fig. 1 in a second position.

Referring to fig. 3 and 4, the filter 27 includes a first filter 28 and a second filter 29, and the first filter 28 and the second filter 29 are fixed to the filter holder 22. The first filter 28 faces the sensor 21 when the filter holder 22 is in the first position and the second filter 29 faces the sensor 21 when the filter holder 22 is in the second position. The dual light fusion is achieved by rapidly switching the first filter 28 and the second filter 29 between two frame exposures of the sensor 21 and then fusing the two frames of images. The filter holder 22 rotates to change the positions of the first filter 28 and the second filter 29 relative to the sensor 21. When the first filter 28 rotates to face the sensor 21, the sensor 21 senses the light passing through the first filter 28, and generates a first frame image. When the second filter 29 rotates to face the sensor 21, the sensor 21 senses the light passing through the second filter 29, and generates a second frame image. And fusing the two frames of images to obtain a fused image. In the present embodiment, the number of filters 27 is two. In other embodiments, the number of filters 27 may be three or more, three or more frame image fusion. The application is not limited.

Referring to fig. 1 and 2 again, the rotating shaft 26 of the driving device 25 of the camera system 10 provided by the application extends to the filter support 22, and is connected with the filter support 22, and the driving device 25 directly drives the filter support 22, so that the switching speed of the filter support 22 is faster, the interval time for generating two frames of images is short, and the image fusion effect is good.

In an alternative embodiment, the filter holder 22 comprises a protrusion 24, the holder body portion 23 is connected to the driving means 25, and the filter 27 is provided in the holder body portion 23. The protrusions 24 are protruded from a side of the holder body part 23 facing the buffer assembly 30 for colliding with the first buffer assembly 31 and the second buffer assembly 32. The side of the filter support 22 facing the buffer assembly 30 is provided with the protrusions 24, so that the energy of the filter support 22 can be transferred to the buffer block 34 through collision while saving space. The first filter 28, the second filter 29, and the protrusions 24 may be circumferentially distributed, and the protrusions 24 may be disposed between the first filter 28 and the second filter 29. When the filter holder 22 moves to the first position, the projection 24 collides with the first buffer member 31, and when it moves to the second position, the projection 24 collides with the second buffer member 32.

In some embodiments, the camera system 10 further includes a buffer assembly 30, where the buffer assembly 30 is disposed on the base 11 and located in a rotation path of the filter support 22, for colliding with the filter support 22 to slow the filter support 22 to the first position or the second position. The buffer assembly 30 is located in the rotational path of the filter support 22, and when the filter support 22 rotates from the second position to approach the first position, the buffer assembly 30 is impacted and decelerated to the first position. When the filter holder 22 rotates from the first position to approach the second position, the collision buffer assembly 30 decelerates to the second position. So can make filter support 22 rotate a section distance back can slow down and stop in corresponding position fast for filter support 22 can stop in corresponding position as soon as possible, makes sensor 21 can respond to light as soon as possible, produces the image, and thus interval time is short between two frame images, makes the image fusion effectual. And the filter support 22 moving at high speed is decelerated by collision, so that the structure is simple and reliable, and the realization is easy.

In an alternative embodiment, the buffer assembly 30 includes a first buffer assembly 31 and a second buffer assembly 32, where the first buffer assembly 31 and the second buffer assembly 32 are separately disposed on the base 11 along a rotation path of the filter support 22, the first buffer assembly 31 is used to collide with the filter support 22 when the filter support 22 rotates from the first position to the second position, and the second buffer assembly 32 is used to collide with the filter support 22 when the filter support 22 rotates from the second position to the first position, and the first buffer assembly 31 and the second buffer assembly 32 are disposed separately from each other, so that the filter support 22 can be decelerated near both the first position and near the second position, so that the filter support 22 can be stopped at the corresponding position as soon as possible. The first buffer assembly 31 and the second buffer assembly 32 are located at the edge of the filter support 22, may be distributed on a circumference centered on a point on the center line of the rotation shaft 26 of the driving device 25, and may be distributed on opposite sides of the base 11.

Referring to fig. 5, base 11 includes opposing first and second sides 49, 50, and opposing third and fourth sides 51, 52, third side 51 connecting first and second sides 49, 50, first and second cushioning assemblies 31, 32 proximate second side 50 with respect to sensor 21, first cushioning assembly 31 proximate third side 51 with respect to fourth side 52, and second cushioning assembly 32 proximate third side 51 with respect to fourth side 52, such that first and second cushioning assemblies 31, 32 are distributed on first and second sides 49, 50 of base 11.

Referring to fig. 1, 3 to 5, in an alternative embodiment, the filter support 22 is reciprocally rotatably disposed on the base 11 between a first position and a second position, the first buffer assembly 31 and the second buffer assembly 32 are disposed on opposite sides of the rotating shaft 26 of the driving device 25, so that the arrangement is more uniform, the positioning and the installation are easy, the installation space of the base 11 can be saved, and the space utilization is improved. The shaft 26 of the driving device 25 is close to the second side 50 relative to the sensor 21, the driving device 25 is located between the third side 51 and the fourth side 52, the first buffer assembly 31 is located between the driving device 25 and the third side 51, and the second buffer assembly 32 is located between the driving device 25 and the fourth side 52. The first and second buffer assemblies 31 and 32 may be symmetrically disposed with respect to the central axis of the base 11. The rotation shaft 26 of the driving device 25 may pass through the central axis of the base 11 to be perpendicular to the central axis.

Referring again to fig. 1, in an alternative embodiment, the bumper assembly 30 includes a stop 33 and a bumper block 34, the stop 33 being a flexible material, and in this embodiment, the stop 33 being rubber. The buffer block 34 is movably disposed on the base 11, and the blocking member 33 is fixed on the base 11 and located on the moving path of the buffer block 34. When the buffer block 34 is collided by the filter support 22, the buffer block moves to strike the blocking piece 33, energy of the filter support 22 is transferred to the buffer block 34 in a collision mode, and kinetic energy is converted into energy in the form of heat energy and the like by the buffer block 34 in a collision mode with the blocking piece 33, wherein the buffer block 34 needs to calculate rotational inertia according to the law of conservation of energy and the theorem of moment of momentum, so that the energy of the filter support 22 can be reduced to the maximum. In some embodiments, the buffer block 34 is rotatably provided to the base 11, and rotates toward the blocking member 33 when being impacted until striking the blocking member 33.

In an alternative embodiment, the damper assembly 30 includes a damper elastic member 37, the damper elastic member 37 including a first end 47 and a second end 48, the first end 47 being secured to the damper block 34, the damper elastic member 37 extending outwardly from the first end 47 around the damper block 34 toward the damper block 34, the second end 48 being located outside the damper block 34 and extending into the rotational path of the filter support 22 for collision with the filter support 22. The rotating filter support 22 collides with the second end 48 of the buffer elastic member 37, so that the buffer elastic member 37 is elastically deformed, the filter support 22 transfers energy to the buffer block 34 to achieve the deceleration of the filter support 22, and meanwhile, the buffer elastic member 37 has elasticity, so that the buffer block 34 and the blocking member 33 can be prevented from being damaged due to rigid collision. In some embodiments, the buffer spring 37 is a torsion spring. The buffer elastic member 37 is accommodated between the bases 11 of the buffer block 34, the first end 47 can be abutted against the inner wall of the buffer block 34, and the second end 48 can extend from the bases 11 to the outside of the bases 11.

In an alternative embodiment, the buffer assembly 30 includes a return elastic member 38, one end of the return elastic member 38 is fixed to the buffer block 34, the return elastic member 38 bypasses the buffer block 34 and extends outwards from the buffer block 34, and the other end of the return elastic member 38 is located outside the buffer block 34 and abuts against the base 11. After the buffer block 34 hits the blocking member 33, the return elastic member 38 returns the buffer block 34 to move away from the blocking member 33. Since the switching speed of the filter support 22 is high, the reset elastic member 38 is provided to enable the buffer block 34 and the buffer elastic member 37 to quickly return to the initial positions, so as to prepare for the next collision of the filter support 22 to the buffer elastic member 37. In this embodiment, the base 11 is provided with a limiting protrusion 46, the reset elastic member 38 bypasses the buffer block 34 and extends outwards from the buffer block 34, and is abutted against the limiting protrusion 46 provided on the base 11, and the reset elastic member 38 and the buffer elastic member 37 may be disposed on two sides of the buffer block 34. In some embodiments, the positioning spring 38 is a torsion spring that is widely used and serves to better cushion the impact.

In an alternative embodiment, cushioning assembly 30 further includes a stop 39, stop 39 being secured to base 11 and spaced apart from stop 33, cushioning assembly 30 extending between stop 33 and stop 39 and being movable between stop 33 and stop 39. When the filter holder 22 is in the first position or the second position, the buffer block 34 is separated from the stopper 33 and abuts against the stopper 39. After the buffer block 34 hits the blocking member 33, the reset elastic member 38 drives the buffer block 34 to move away from the blocking member 33 for reset until the buffer block 34 is blocked by the limiting member 39. The stopper 33 and the stopper 39 together restrict the displacement of the buffer block 34, and the buffer block 34 moves between the stopper 33 and the stopper 39. The stop 39 and the stop 33 may be distributed over a circumference, with the buffer block 34 rotating between them. The limiting member 39 can ensure that the initial position of the buffer block 34 is the same and the compression amount of the buffer elastic member 37 is the same each time the filter support 22 is switched between the first position and the second position, thereby ensuring the accuracy of the movement of the filter support 22.

In this embodiment, when the filter support 22 rotates from the second position to the first position, the second buffer assembly 32 plays a role in buffering, the second end 48 of the buffer elastic member 37 of the second buffer assembly 32 collides with the filter support 22, so as to drive the buffer block 34 to move until striking the blocking member 33, and after the buffer block 34 strikes the blocking member 33, the reset elastic member 38 resets the buffer block 34 to move away from the blocking member 33 of the first buffer assembly 31, and finally abuts against the limiting member 39. When the filter support 22 rotates from the first position to the second position, the first buffer assembly 31 plays a role in buffering, and the movement mode of the first buffer assembly 31 is the same as that of the second buffer assembly 32.

In an alternative embodiment, the base 11 includes a base body 14 and a mounting portion 15 coupled to the base body 14. The driving device 25 and the filter holder 22 are attached to the base body 14. The sensor 21 is provided in the base body 14. The mounting portion 15 may be located at an edge of the base body portion 14. The buffer block 34 includes a connecting portion 35 and an acting portion 36, the connecting portion 35 is rotatably connected to the mounting portion 15, and the buffer elastic member 37 is disposed between the connecting portion 35 and the mounting portion 15. The buffer elastic member 37 is accommodated between the connecting portion 35 and the mounting portion 15. The acting portion 36 is connected to the connecting portion 35, and is located outside the mounting portion 15, for striking the blocking member 33, and the blocking member 33 is disposed between the mounting portion 15 and the driving device 25. The blocking member 33 is located inside the base 11 with respect to the connecting portion 35, and the connecting portion 35 is located near the edge of the base 11 with respect to the blocking member 33. When the damper assembly 30 is impacted, the acting portion 36 moves in the inner direction of the base 11, that is, in the edge direction away from the base 11. Thus, the space of the base 11 can be fully utilized, the space utilization rate is high, the structure is compact, and the size of the base 11 can be smaller. The acting portion 36 is located between the blocking member 33 and the stopper 39, and moves therebetween. The stop 39 is located near the edge of the base 11 relative to the stop 33, and the stop 39 may be located away from the drive 25 and the sensor 21 relative to the stop 33.

Referring to fig. 1, 3 and 5, in this embodiment, the base 11 includes a first surface 12 and a second surface 13 opposite to the first surface 12 and close to the filter support 22, the base 11 is recessed from the first surface 12 to the second surface 13 to form a mounting portion 15, the mounting portion 15 includes an opening 16, a bottom surface 17 opposite to the opening 16, a protruding shaft 18 protruding from the bottom surface 17, and a connection surface 19 connecting the opening 16 and the bottom surface 17, the protruding shaft 18 passes through the connection portion 35 to rotatably connect the connection portion 35 to the mounting portion 15, the protruding shaft 18 is provided to fix the connection portion 35 to the mounting portion 15 more firmly, a through hole 20 is provided on a side of the connection surface 19 close to the filter support 22, and a second end 48 of the buffer elastic member 37 extends out of the buffer block 34 through the through hole 20 and extends onto a movement path of the filter support 22. The concave mounting part 15 is arranged to achieve the effect that the buffer block 34 and the optical filter support 22 are arranged on two opposite surfaces of the base 11, so that the space is saved, and the space utilization rate is improved.

In an alternative embodiment, the filter holder 22 is provided on the first face 12 and the driving means 25 is provided on the second face 13. The blocking member 33 and the buffer block 34 are disposed on the second surface 13, and the second end 48 of the buffer elastic member 37 is disposed on the first surface 12. The blocking member 33 and the buffer block 34 are disposed on one surface of the base 11 facing away from the filter support 22, and the above components are disposed on two opposite surfaces of the base 11, so that the distance from the filter support 22 to the first surface 12 can be reduced, the distance between the driving device 25 and the filter support 22 can be smaller, the connection can be more stable, and the transmission distance is short, so that the filter support 22 can be driven to rotate more stably when the driving device 25 moves.

The first and second buffer assemblies 31 and 32 may include the structure of the buffer assembly 30 described above, and the structures of the first and second buffer assemblies 31 and 32 may be the same or different.

Referring again to fig. 1, in an alternative embodiment, camera system 10 includes a magnetic member 40 and a magnetic mating member 43 that mates with magnetic member 40, magnetic member 40 is disposed on base 11 and magnetic mating member 43 is disposed on filter support 22. When the filter support 22 is at the first position and the second position, the magnetic component 40 adsorbs the magnetic matching component 43, so that the position of the filter support 22 can be accurately corrected, and the accuracy of the filter support 22 can be ensured in the repeated movement process. In this embodiment, the magnetic member 40 is a magnet, the magnetic matching member 43 is a bolt, and the bolt is easy to obtain and convenient to install and detach, so that the magnetic matching member 43 is convenient to replace.

In an alternative embodiment, the number of magnetic elements 40 corresponds to the number of filters 27, and the accuracy of the position of the filter support 22 can be ensured when any filter 27 faces the sensor 21.

In an alternative embodiment, the magnetic member 40 includes a first magnetic member 41 and a second magnetic member 42, where the first magnetic member 41 and the second magnetic member 42 are separately disposed on the driving device 25, and when the filter support 22 is in the first position, the first magnetic member 41 attracts the magnetic matching member 43, and when the filter support 22 is in the second position, the second magnetic member 42 attracts the magnetic matching member 43, so as to save installation space. The magnetic member 40 is disposed adjacent to the blocking member 33 and the magnetic engaging member 43 is disposed on the protrusion 24, which allows the same position of the filter holder 22 to achieve both the collision with the second end 48 of the buffer elastic member 37 and the correction of the position of the filter holder 22.

In an alternative embodiment, the magnetic member 40 is mounted on the base 11 and disposed between the blocking member 33 and the buffer block 34, so that the mounting space is saved, and the blocking member 33 is disposed away from the base 11 relative to the magnetic member 40, so as to ensure that the buffer block 34 does not receive interference of the magnetic member 40 during the process of moving to strike the blocking member 33.

In this embodiment, the included angle between any two of the line from the center of the first optical filter 28 to the rotation center of the optical filter support 22, the line from the center of the second optical filter 29 to the rotation center of the optical filter support 22, and the line from the center of the magnetic matching piece 43 to the rotation center of the optical filter support 22 is 120 degrees, so that the first buffer assembly 31 and the second buffer assembly 32 are more uniformly distributed on the base 11, and the positioning and the installation are easier, and the accuracy of the use of the optical filter support 22 is ensured.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A camera system, comprising:

a base;

the sensor is fixed on the base;

A filter including a first filter and a second filter, the first filter and the second filter being fixed to the filter holder, the first filter facing the sensor when the filter holder is in the first position, the second filter facing the sensor when the filter holder is in the second position;

the camera system comprises a buffer assembly, wherein the buffer assembly is arranged on the base and positioned on a rotating path of the optical filter support and is used for colliding with the optical filter support so as to enable the optical filter support to be decelerated to the first position or the second position;

the buffer assembly comprises a blocking piece and a buffer block; the buffer block is movably arranged on the base, the blocking piece is fixed on the base and is positioned on the moving path of the buffer block, and the buffer block moves to impact the blocking piece when being impacted by the optical filter support;

the buffer assembly comprises a reset elastic piece, one end of the reset elastic piece is fixed on the buffer block, the reset elastic piece bypasses the buffer block to extend outwards of the buffer block, the other end of the reset elastic piece is located outside the buffer block and is abutted to the base, and after the buffer block collides with the blocking piece, the reset elastic piece enables the buffer block to move and reset in a direction away from the blocking piece.

2. The camera system of claim 1, wherein the buffer assembly comprises a first buffer assembly and a second buffer assembly, the first buffer assembly and the second buffer assembly being disposed on the base separately from each other in a rotational path of the filter support, the first buffer assembly being configured to collide with the filter support when the filter support is rotated from the first position to the second position, the second buffer assembly being configured to collide with the filter support when the filter support is rotated from the second position to the first position.

3. The camera system according to claim 2, wherein the filter holder includes a holder body portion and a protrusion, the holder body portion being connected to the driving device, the filter being provided to the holder body portion, the protrusion being provided to a side of the holder body portion facing the buffer assembly for collision with the first buffer assembly and the second buffer assembly; and/or

4. The camera system of claim 1, wherein the buffer assembly includes a buffer spring including a first end and a second end, the first end being secured to the buffer block, the buffer spring extending outward of the buffer block from the first end around the buffer block, the second end being located outside the buffer block and extending into a rotational path of the filter support for collision with the filter support.

5. The camera system of claim 4, wherein the base includes first and second opposing faces, the filter mount being disposed on the first face, the drive being disposed on the second face, the stop and the buffer block being disposed on the second face, the second end of the buffer spring being disposed on the first face; and/or

The base comprises a base main body part and a mounting part connected with the base main body part, and the driving device and the optical filter bracket are mounted on the base main body part; the buffer block comprises a connecting part and an acting part, the connecting part is rotatably connected to the mounting part, the buffer elastic piece is arranged between the connecting part and the mounting part, the acting part is connected with the connecting part and is positioned outside the mounting part and used for impacting the blocking piece, and the blocking piece is arranged between the mounting part and the driving device.

6. The camera system of claim 1, wherein the buffer assembly further comprises a stop member secured to the base and spaced apart from the stop member, the buffer assembly extending between the stop member and being movable between the stop member and the stop member, the buffer block being spaced apart from the stop member against the stop member when the filter holder is in the first or second positions.

7. The camera system of claim 1, comprising a magnetic member and a magnetic mating member mated with the magnetic member, the magnetic member disposed on the base, the magnetic mating member disposed on the filter support, the magnetic member attracting the magnetic mating member when the filter support is in the first position and the second position.

8. The camera system of claim 7, wherein the number of magnetic elements corresponds to the number of filters; and/or