Imaging device and operation method thereof

Abstract

The invention belongs to the technical field of imaging, and provides an imaging device and an operation method thereof, and the imaging device comprises a base which is provided with a first light-transmitting hole and a second light-transmitting hole which are coaxially arranged; the rotating disc is rotationally arranged in the base, a plurality of first sliding grooves which are distributed in the circumferential direction at intervals are formed in the rotating disc, each first sliding groove is provided with a first sliding block, the first sliding blocks can linearly move in the first sliding grooves in a reciprocating mode, and a plurality of optical filters which are linearly distributed at intervals are arranged on the first sliding blocks; wherein the first sliding groove is provided with a third light-transmitting hole, the third light-transmitting hole can be coaxial with the first light-transmitting hole and the second light-transmitting hole, and each light filter located on the first sliding block can move to the third light-transmitting hole and cover the third light-transmitting hole. By the adoption of the structure, a plurality of different optical filters can be located on the same rotating disc, the different optical filters can be switched according to experiment requirements, operation is easy and convenient, and the automation degree is high.

Description

Technical Field

[0001] The present invention belongs to the field of imaging technology, and in particular relates to an imaging device and an operating method thereof. Background Art

[0002] Imaging equipment is commonly found in the field of bio-imaging technology, and is used to perform quantitative analysis on the images taken.

[0003] In practical applications, since different experiments require the use of light in different wavelength bands, different filters are usually installed and replaced before the experiment to meet the experimental requirements. In the existing technology, the filter is usually installed and fixed together with the camera lens, and the structure is relatively simple. When switching the filter, it usually needs to be disassembled and replaced. The whole process is troublesome and cumbersome, and it cannot meet the needs of fast multi-band imaging experiments on the same device, and it is impossible to quickly replace different filters according to the actual experimental needs. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides an imaging device that solves the cumbersome and complex filter replacement process in the prior art. This device allows for rapid switching of filters to meet the needs of different experiments, simplifying the switching process. Furthermore, the device provides multiple filter options for switching, meeting the needs of a wide variety of light sources. Another aspect of the present invention provides a method for operating the imaging device.

[0005] In order to achieve the above object, the present invention adopts the following scheme: An imaging device, comprising: A base is provided with a first cavity, and the base is provided with a first light-transmitting hole and a second light-transmitting hole arranged coaxially; a lens, detachably disposed at the first light transmission hole; and a camera, detachably disposed at the second light transmission hole; a turntable rotatably disposed in the first cavity of the base, the turntable being provided with a plurality of first chutes distributed at intervals, the first chutes being circumferentially distributed around the rotation center of the turntable, each of the first chutes being provided with a first slider, the first slider being capable of reciprocating linear movement within the first chutes along the length direction of the first chutes, the first slider being provided with a plurality of filters distributed at intervals along a linear direction, the distribution direction of the filters being consistent with the movement direction of the first slider; Among them, a third light-transmitting hole is provided on the first slide groove, and the third light-transmitting hole can be coaxial with the first light-transmitting hole and the second light-transmitting hole. Each filter located on the first slider can be moved to the third light-transmitting hole and cover the third light-transmitting hole. The light passes through the lens, the first light-transmitting hole, the third light-transmitting hole, the filter, and the second light-transmitting hole in sequence to the camera.

[0006] In some embodiments, the first sliding groove is provided with a preset length, and the width of the first sliding groove is adapted to the width of the first sliding block.

[0007] In some embodiments, a detachable first limit block is provided on the turntable, and the first limit block is arranged along the length direction of the first slide groove. The first limit block protrudes from the edge of the first slide groove, and the first sliding block partially abuts against the first limit block.

[0008] In some embodiments, the first slider is provided with a plurality of through fourth light-transmitting holes, and the optical filter is detachably disposed on the fourth light-transmitting holes, and the optical filter covers the fourth light-transmitting holes.

[0009] In some embodiments, a first pressing block is provided between two adjacent fourth light-transmitting holes, the first pressing block protrudes relative to the edge of the first sliding groove, and the first pressing block is detachably provided on the turntable.

[0010] In some embodiments, the movement directions of the plurality of first sliding blocks all point to the rotation center of the turntable.

[0011] In some embodiments, the turntable is provided with a plurality of first guide grooves, the distribution direction of the first guide grooves being consistent with the movement direction of the first slider, the first guide grooves being connected to the first chute, the number of the first guide grooves being equal to the number of the first sliders; and the length of the first guide grooves being greater than or equal to the distance the first slider moves relative to the first chute. A first guide rod is provided on the first slider, one end of which extends into the first guide slot. A first return spring is provided in the first guide slot, one end of which abuts against one end of the first guide rod.

[0012] In some embodiments, a first cover plate is provided on the turntable, the first cover plate covers the first guide grooves, and the first cover plate is detachably provided on the turntable.

[0013] In some embodiments, it also includes a first push rod movably arranged on the base and a plurality of first notches arranged on the side of the turntable, the number of the first notches is equal to the number of the first sliding grooves, the first notches are connected to the first sliding grooves, one end of the first push rod can pass through the first notch and abut against the first slider, and the moving direction of the free end of the first push rod is consistent with the moving direction of the first slider.

[0014] In some embodiments, the first notches are evenly distributed along the sidewall of the outer circumference of the turntable.

[0015] In some embodiments, the base includes a base and a second cover plate, the base and the base form a first cavity, the first light-transmitting hole is provided on the base, and the second light-transmitting hole is provided on the second cover plate.

[0016] In some embodiments, a preset distance is set between the turntable and the base and the second cover plate, a first annular support structure is provided between the turntable and the second cover plate, and a second annular support structure is provided between the turntable and the base; The first annular support structure includes a first annular groove provided on the second cover plate and a first annular support bar provided on the first cover plate, or a first annular support bar provided on the second cover plate and a first annular groove provided on the first cover plate, wherein the first annular support bar abuts against the first annular groove; The second annular support structure includes a second annular groove provided on the base and a second annular support bar provided on the turntable, or a second annular support bar provided on the base and a second annular groove provided on the turntable, wherein the second annular support bar abuts against the second annular groove; The first annular groove and the second annular groove are concentrically arranged, and the center of the first annular groove coincides with the rotation center of the turntable.

[0017] In some embodiments, it also includes a first guide rail arranged on the base and a second slider arranged on the first guide rail, the second slider makes reciprocating linear motion on the first guide rail, the first push rod is arranged on the second slider, and the moving direction of the second slider is consistent with the moving direction of the free end of the first push rod.

[0018] In some embodiments, a sampling port is provided on the second cover plate, a detachable sampling cover plate is provided on the sampling port, the sampling port is offset relative to the second light-transmitting hole, and several filters on the first slider can be exposed at the sampling port.

[0019] In some embodiments, the turntable is numbered, and a third notch is provided at the edge of the sampling port. When the multiple filters of the first slider are exposed at the sampling port, the numbered positions correspond to the third notch positions.

[0020] In some embodiments, a first driving shaft is further included. A first driving disk is provided on the first driving shaft. The turntable is fixed on the first driving disk. The first driving shaft is rotatably arranged relative to the base.

[0021] The present invention further provides an operating method of an imaging device, which is applied to an imaging device described in each of the above embodiments, comprising the following steps: S1. Confirm the type of filter required for this experiment; S2. Drive the turntable to rotate the first slider carrying the target filter to the first light-transmitting hole and the second light-transmitting hole, so that light passes through the filter located on the first slider; if the target filter is located at the first light-transmitting hole, the imaging experiment can be carried out at this time; if not, proceed to the next step; S3. Push the first push rod to drive the first slider to move in the first slide groove until the target filter moves to the first light transmission hole and the second light transmission hole. At this time, the imaging experiment can be carried out. After the experiment is completed, the first push rod is reset and the first slider is reset.

[0022] In some embodiments, the angle of each rotation of the turntable satisfies K*(360° / N), where K is a positive integer and N is the number of the first chute.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The present invention employs a turntable structure with a plurality of spaced first sliders disposed thereon, each of which is provided with multiple filters, thereby forming a turntable structure containing multiple rings of filters. The rotation of the turntable, combined with the reciprocating linear movement of the first sliders, enables a switching mechanism for different filters, meeting diverse experimental needs without the need for repeated disassembly and replacement, resulting in convenient operation and saving time and effort. Furthermore, while being able to accommodate a large number of different experiments requiring different filters, the device occupies a small space and is highly practical.

[0024] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of the imaging device of the present invention; Figure 2 for Figure 1 Exploded view in ; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 is a first perspective view of a base of an imaging device of the present invention; Figure 5 A second perspective view of the base of the imaging device of the present invention; Figure 6 is a first perspective view of a second cover plate of the imaging device of the present invention; Figure 7 An exploded view of a turntable of the imaging device of the present invention; Figure 8 A perspective view of a turntable of an imaging device according to the present invention from a bottom side perspective; Figure 9 A top view of a turntable of an imaging device according to the present invention; Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 It is a schematic structural diagram of a single first chute of the imaging device of the present invention; Figure 12 A perspective view of a first slider of an imaging device according to the present invention; Figure 13 A cross-sectional view of a first slider of an imaging device according to the present invention with a filter; Figure 14 This is a schematic structural diagram of the first slider of the imaging device of the present invention being located at the sampling port; Figure 15 It is a schematic diagram of the three-dimensional structure of the sampling port of the imaging device of the present invention. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the accompanying drawings. In the description of this embodiment, unless otherwise specified, the terms "left" and "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present application and simplify the description. They do not indicate or imply that the present application must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limiting the present application.

[0027] like Figure 1 and 2 As shown in FIG. 1 , an imaging device provided by the present invention mainly includes a base 101 and a turntable 200, and the turntable 200 is rotatably arranged on the base 101. Specifically, a first cavity is provided on the base 101 for installing the turntable 200, as shown in FIG. Figure 2 and Figure 4 As shown, a second light-transmitting hole 10113 and a first light-transmitting hole 10121 are provided on the upper and lower sides of the base 101. In this embodiment, the second light-transmitting hole 10113 and the first light-transmitting hole 10124 are circular and coaxially arranged with the second light-transmitting hole 10113 and the first light-transmitting hole 10121. Optionally, the shapes of the second light-transmitting hole 10113 and the first light-transmitting hole 10121 are not limited by the present invention and can be rectangular, pentagonal, or other structural shapes. It is only necessary to ensure that the projected positions of the second light-transmitting hole 10113 and the first light-transmitting hole 10121 on the plane of the turntable rotation 200 correspond to each other, just as the second light-transmitting hole 10113 and the first light-transmitting hole 10121 in the aforementioned circular structure are coaxially arranged. It should be noted that to avoid light interference, the first cavity is a sealed cavity that blocks external light, and the light source only enters through the first light-transmitting hole 10121 and exits through the second light-transmitting hole 10113.

[0028] The lens 104 is detachably arranged at the first light hole 10121, and the camera 103 is detachably arranged at the second light hole 10113. The lens 104 covers the first light hole 10121, and the camera 103 covers the second light hole 10113. Specifically, the second mounting seat 10114 is detachably arranged at the second light hole 10113, and a second mounting position is provided on the second mounting seat 10114; the first mounting seat 10124 is detachably arranged at the first light hole 10121, and a first mounting position is provided on the first mounting seat 10124; the lens 104 is detachably connected to the first mounting position of the first mounting seat 10124, and the camera 103 is detachably arranged at the second mounting position of the second mounting seat 10114. A light source is provided on one side of lens 104. The light source passes sequentially through lens 104, first light transmission hole 10121, third light transmission hole 203, filter 20231, second light transmission hole 10113, and finally to camera 103. In this embodiment, lens 104 can be replaced according to experimental needs, and camera 103 can be a line array camera or an area array camera. The removable connection between second mounting base 10114 and first mounting base 10124 includes, but is not limited to, a bolt or screw locking structure. Camera 103 is positioned via a hole axis, and multiple threaded holes are provided on second mounting base 10114 for tightening and securing with screws or bolts. In this embodiment, internal threads are provided on first mounting base 10124, and matching external threads are provided on lens 103. The threaded structure allows lens 103 to be removably mounted in the second mounting position.

[0029] In this embodiment, the first light-transmitting hole 10121 is arranged on the first mounting seat 10124, the second light-transmitting hole 10113 is arranged on the second mounting seat 10114, the first mounting seat 10124 is detachably arranged on the base 1012, and the second mounting seat 10114 is detachably arranged on the second cover plate 1011, and the detachable method includes but is not limited to a locking structure of bolts or screws.

[0030] The turntable 200 is disposed in the first cavity of the base 101 and can rotate relative to the base 101. A plurality of first slide grooves 201 are provided on the turntable 200. Figure 7 and Figure 10 As shown, the first chutes 201 are arranged at intervals, and the plurality of first chutes 201 are circumferentially distributed around the rotation center of the turntable 200. A first slider 202 is provided on each first chute 201. The first slider 202 can move back and forth linearly along the length direction of the first chute 201. A plurality of different filters 20231 are provided on the first slider 202. Figure 13 As shown, the plurality of filters 20231 are distributed in a straight line, which is consistent with the length direction of the first slide groove 201. A third light-transmitting hole 203 is provided on the first slide groove 201. Figure 11As shown, each third light-transmitting hole 203 is at the same distance from the rotation center of the turntable 200, so that each third light-transmitting hole 203 located on the turntable 200 can be coaxial with the second light-transmitting hole 10113 and the first light-transmitting hole 10121. A plurality of filters 20231 arranged on the first slider 201 can cover the third light-transmitting holes 203, so that light entering the camera 103 from the lens 104 must be completely filtered by the filter 20231 before being emitted, thereby realizing the screening of light required for the experiment.

[0031] In this embodiment, in order to facilitate control and maximize the use of the space of the turntable 200, the distance between two adjacent filters 20231 is the same, and the first slide grooves 201 are evenly spaced on the turntable 200. Figure 9 As shown, each first chute 201 corresponds to an auxiliary line, and the first chute 201 is symmetrically arranged about the auxiliary line. The angle between the two auxiliary lines corresponding to two adjacent first chute 201 is a, so that multiple first chute 201 are evenly distributed circumferentially on the turntable 200. The number of filters 20231 is at least two. If the size of the turntable 200 is not considered, it can be three or four or other integers. By adopting the above solution, it is possible to set multiple circles of different filters 20231. By rotating the turntable 200 and combining the movement of the first slider 202 in the first chute 201, it is possible to switch the filters 20231 on the turntable 200 at will, thereby meeting different light source requirements, simplifying the experimental process, improving experimental efficiency, and being convenient and simple to operate.

[0032] In one embodiment, the first chute 201 is configured with a preset length to allow each filter 20231 on the first slider 202 to move to the third light-transmitting aperture 203 and completely cover the third light-transmitting aperture 203. To reduce the area occupied by the first chute 201 on the turntable 200, the width of the first chute 201 matches the width of the first slider 202. This eliminates the need for additional limiting structures to constrain the first slider 202 for reciprocating linear movement, simplifying the device. In this embodiment, the width of the first slider 202 only needs to be slightly larger than the diameter of the filter 20231, thereby minimizing the width of the first slider 202. By providing a first chute 201 that matches the width of the first slider 202, the area occupied by the first chute 201 on the turntable 200 is reduced, and the number of first chute 201 can be maximized.

[0033] In one embodiment, in order to enable the first slider 202 to move stably in the first slide groove 201 and not to escape from the first slide groove 201, a first limit block 206 is provided on the turntable 200, and the first limit block is detachably arranged relative to the turntable. Figure 7 and Figure 10As shown, the first limit block 206 is arranged along the length direction of the first slide groove 201, that is, the moving direction of the first slider 202. The first limit block 206 protrudes relative to the edge of the first slide groove 201, thereby abutting or blocking part of the first slider 202. When the first limit block 206 is not removed, the first slider 202 cannot escape from the first slide groove 201, thereby limiting the first slider 202 in the vertical direction of the plane where the turntable 200 rotates.

[0034] In this embodiment, the first limit block 206 is a thin sheet mechanism, and a corresponding groove is provided on the turntable 200, such as Figure 11 As shown (not marked), the first limit block 206 does not protrude relative to the turntable 200 as a whole, making the turntable 200 more compact. It should be noted that the first limit block 206 is provided with a certain length. No matter where the first slider 202 slides, the first limit block 206 can limit the first slider 202. At the same time, the protruding distribution of the first limit block 206 will not block the filter 20231, thereby preventing light from being blocked. In this embodiment, in order to reduce the number of installation times of the first limit block 206, the first limit block 206 can limit the first sliders 202 in two adjacent first chutes 201, such as Figure 9 Optionally, the first limit block 206 may also be a split structure, that is, two first limit blocks 206 are provided for each first chute 201. The detachable connection method is conventional bolt or screw fixing, which is not limited by the present invention.

[0035] In one embodiment, in order to facilitate the installation and fixation of the filter 20231, a plurality of through fourth light-transmitting holes 2023 are provided on the first slider 202, such as Figure 12 and Figure 13 As shown, an annular abutment boss 2021 protruding from the inner wall is provided in the fourth light-transmitting hole 2023, and the filter 20231 is adapted to the outer shape of the fourth light-transmitting hole 2023. The filter 20231 abuts on the annular abutment boss 2021 according to its own gravity. The filter 20231 covers the fourth light-transmitting hole 2023 so that the light source can only be transmitted through the filter 20231.

[0036] Furthermore, a first pressing block 205 is provided at the edge of the fourth light-transmitting hole 2023, as shown in FIG. Figure 10 As shown, the first pressing block 205 is a thin sheet structure, and the first pressing block 205 protrudes relative to the edge of the fourth light transmission hole 2023, thereby limiting the filter 20231 to prevent the filter 20231 from being separated from the fourth light transmission hole 2023. Figure 12As shown, the first pressing block 205 is detachably mounted on the turntable 200, and a sunken notch is provided on the turntable 200 so that the first pressing block 205 does not protrude relative to the turntable 200. At the same time, there will be no motion interference between the first pressing block 205 and the first limiting block 206. In this embodiment, the first limiting block 206 does not limit the first pressing block 205 in the vertical direction of the plane where the turntable 200 is located. In this embodiment, the first pressing block 205 is arranged according to the shape of the fourth light-transmitting hole 2023. Since the fourth light-transmitting hole 2023 adopts a circular structure, the first pressing block 205 adopts an arc-shaped structure to fully or semi-enclose the fourth light-transmitting hole 2023. Figure 10 As shown, in this embodiment, it is a semi-enclosed limit for the filter 20231, and the fully enclosed limit is a complete circular ring structure.

[0037] In order to reduce the number of first pressing blocks 205 to be installed, in this embodiment, one first pressing block 205 can limit the placement of the filter 20231 in two adjacent fourth light-transmitting holes 2023, and a threaded hole is set in the middle of the two fourth light-transmitting holes 2023, such as Figure 12 As shown (not marked in the figure), the first pressing block 205 is locked and fixed by bolts or screws.

[0038] In one embodiment, Figure 9 As shown, in order to facilitate the uniform distribution of the first chute 201 and the movement design of the first slider 202, the movement directions of the plurality of first sliders 202 all point to the rotation center of the turntable 200. In this embodiment, the first chute 201 is a symmetrical structure. Figure 9 The auxiliary lines shown are symmetrical, and the angle between two adjacent auxiliary lines is a. By adopting the above structure, the extension line of the symmetrical center axis of the first slide groove 201 passes through the rotation center of the turntable, so that the first slide grooves 201 are reasonably distributed on the turntable 200, and the number of the first slide grooves 201 can be maximized, which is convenient for the subsequent movement control of the first slider 202.

[0039] In one embodiment, a plurality of first guide grooves 208 are provided on the turntable 200, such as Figure 10 and Figure 11 As shown, the distribution direction of the first guide grooves 208 is consistent with the movement direction of the first slider 202, that is, the multiple first guide grooves 208 all point to the rotation center of the turntable 200. The first guide grooves 208 are connected to the first chute 201, and the number of first guide grooves 208 is equal to the number of first chute 201. It should be noted that the length of the first guide grooves 208 is greater than the movement distance of the first slider 202 in the first chute 201.

[0040] Specifically, if Figure 12As shown, a first guide rod 2022 is provided on the first slider 202. One end of the first guide rod 2022 extends into the first guide slot 208. A first return spring 2081 is provided in the first guide slot 208. One end of the first return spring 2081 abuts against one end of the first guide rod 2022. By ensuring that the length of the first guide slot 208 is greater than the travel distance of the first slider 202, the first slider 202 can be moved into position, allowing the optical filter 20231, which is located away from the rotation center of the turntable 200, to reach the third light transmission hole 203.

[0041] In this embodiment, the first slider 202 is driven by an external force to push the first slider 202 to move. Therefore, when the first slider 202 is in the initial state, that is, the first slider 202 has not moved, it is only acted upon by the elastic force of the first return spring 2081. The filter 20231 on the first slider 202 that is closest to the rotation center of the turntable 200 is located at the third light transmission hole 203. When the first slider 202 moves toward the rotation center of the turntable 200, each filter 20231 on the first slider 202 can reach the third light transmission hole 203 until the filter 20231 farthest from the rotation center of the turntable 200 reaches the third light transmission hole 203. At this time, the compressed length of the first return spring 2081 is maximized. When the external force is released, under the action of the first return spring 2081, the first slider 202 returns to the initial state, that is, the filter 20231 on the first slider 202 that is closest to the rotation center of the turntable 200 is located at the third light transmission hole 203.

[0042] Furthermore, it should be noted that in the above embodiment, when the first slider 202 is in the initial state, the first slider 202 abuts against the inner wall of the first slide groove 201, thereby forming a limit, and no additional limiting structure is required. When the filter 20231 on the first slider 202 that is farthest from the rotation center of the turntable 200 is at the third light transmission hole 203, the other end of the first slider 202 abuts against the inner wall of the first slide groove 201, and no additional limiting structure is required. In this embodiment, the number of filters 20231 on each first slider 202 is two. Therefore, when any one end of the first slider 202 abuts against the inner wall of the first slide groove 201, there will always be one filter 20231 at the third light transmission hole 203. By adopting such a structure, the limit design between the first slider 202 and the first slide groove 201 is simplified, and the operation is simple.

[0043] Optionally, the number of filters 20231 on the same first slider 202 can also be 3 or 4 or even 5, as long as the turntable 200 is large enough and the space occupied by the entire device is not considered, it can be achieved. At this time, except for the filters 20231 located at both ends, there is no need to additionally control the moving distance of the first slider 202. The filter 20231 located in the middle of the first slider 202 needs to control the moving distance of the first slider 202 through an external structure. At this time, it is necessary to clearly know the center distance between the two adjacent filters 20231. By moving the center distance each time, the filter 20231 in the middle position of the first slider 202 can accurately reach the third light-transmitting hole 203.

[0044] In one embodiment, Figure 7 and Figure 9 As shown, in order to facilitate the installation of the first return spring 2081 and prevent the first return spring 2081 from bouncing out of the first guide groove 208, a first cover plate 207 is provided on the turntable 200. The first cover plate 207 is detachably provided on the turntable 200. The detachable connection method of the first cover plate 207 includes but is not limited to a locking and fixing method of bolts or screws.

[0045] In one embodiment, to facilitate movement of the first slider 202 relative to the first chute 201, a first push rod 10125 is provided on the base 101, and a plurality of first notches 204 are provided on the edge of the turntable 200. The number of the first notches 204 is equal to the number of the first chute 201. The first notches 204 connect the outside of the turntable with the first chute 201. The first push rod 10125 can extend through the first notches 204 into the first chute 201 and abut against the first slider 202, thereby driving the first slider 202 to move relative to the first chute 201. The movement direction of the first push rod 20125 is consistent with the movement direction of the first slider 202. In this embodiment, the first push rod 20125 is movably provided on the base 101 and has a free end that is capable of reciprocating linear movement.

[0046] Furthermore, to facilitate control of the rotation angle of the turntable 200, a plurality of first notches 204 are evenly distributed on the outer peripheral sidewall of the turntable 200. In this embodiment, the turntable 200 itself has a circular structure, meaning that the first push rod 20125 can move the same distance within each first slot 201. At this time, the first push rod 20125 can drive any filter 20231 on the first slider 202 to be positioned at the third light-transmitting hole 203. When the first slider 202 just exits any first notch 204, the turntable can rotate.

[0047] In one embodiment, in order to facilitate the assembly of the turntable 200, the base 101 is configured as a detachable base 1012 and a second cover plate 1011, and the base 1012 and the second cover plate 1011 are assembled to form a first cavity, wherein the first light-transmitting hole 10121 is located on the base, and the second light-transmitting hole 10113 is located on the second cover plate 1011. Specifically, the second cover plate 1011 is a circular structure, a first annular protrusion 10118 is provided on the edge of the second cover plate 1011, and a second annular protrusion 10123 is provided on the base 1012. In this embodiment, the second annular protrusion 10123 is located on the inner side of the first annular protrusion. By providing the first annular protrusion 10118 and the second annular protrusion 10123, the base 1012 supports the second cover plate 1011 to form a first cavity. At the same time, combined with the first annular boss 10118 and the second annular boss 10123, the first cavity can be made light-proof, thereby preventing external light from interfering with the experiment.

[0048] Further, if Figure 3 and Figure 6 As shown, a second notch 10116 is provided on the first annular boss 10118 and the second annular boss 10123. The position of the second notch 10116 corresponds to the position of the first push rod 10125. The first notch 204 can correspond to the position of the second notch 10116. The first push rod 10125 can extend into the first notch 204 through the second notch 10116, and then extend into the first slide groove 201. In this embodiment, when the first push rod 20125 exits the first notch 204, the first push rod is located at the second notch 10116, blocking the second notch 10116 to prevent light from entering the first cavity.

[0049] In one embodiment, a preset distance is provided between the turntable 200 and the base 1012 and the second cover plate 1011 to prevent frictional resistance between the turntable 200 and the base 1012 or the second cover plate 1011 when the turntable 200 rotates. Furthermore, due to the gravity factor of the turntable 200 itself, a second annular support structure is provided between the turntable 200 and the base 1012, and a first annular support structure is provided between the turntable 200 and the second cover plate 1011. The second annular support structure can provide support for the turntable 200, and the first annular support structure can enable the turntable 200 to provide support for the second cover plate 1011. At the same time, the first and second annular support structures can also function as annular limiting structures to ensure that the turntable 200 always rotates around its own rotation center, thereby ensuring that the filter 20231 located on the turntable 200 always performs circular motion around the rotation center of the turntable 200.

[0050] Specifically, if Figure 6As shown, the first annular support structure includes a first annular groove 10117 arranged on the second cover plate 1011 and a first annular support bar 2071 arranged on the first cover plate 207. The first annular groove 10117 and the first annular support bar 2071 are coaxially arranged, and the centers of the first annular groove 10117 and the first annular support bar 2071 coincide with the rotation center of the turntable 200. The first annular support bar 2071 is located in the first annular groove 10117, and the protruding height of the first annular support bar 2071 relative to the first cover plate 207 is greater than the depth of the first annular groove 10117, thereby ensuring that a gap is left between the turntable 200 and the second cover plate 1011.

[0051] Optionally, the first annular groove 10117 may be provided on the first cover plate 207 , and the first annular support bar 2071 may be provided on the second cover plate 1011 , which can also achieve the above-mentioned purpose.

[0052] Optionally, when the second cover plate 1011 is sufficiently rigid, the first annular support bar 2071 does not support the second cover plate 1011 , and only serves to limit the position.

[0053] Optionally, the first annular support bar 2071 may be a continuous structure or a discontinuous structure. When it is a continuous structure, the first annular support bar 2071 is composed of a plurality of bosses arranged at intervals at the same rotation center, and the plurality of bosses are located on the same circumference.

[0054] Similarly, if Figure 4 and Figure 8 As shown, the second annular support structure includes a second annular groove 10122 provided on the base 1012 and a second annular support bar 2072 provided on the turntable 200. The second annular groove 10122 and the second annular support bar 2072 are coaxially arranged. The second annular support bar 2072 is located within the second annular groove 10122 and abuts against the base 1012, thereby supporting the turntable 200 through the second annular support bar 2072. The centers of the second annular groove 10122 and the second annular support bar 2072 coincide with the rotation center of the turntable 200. The height of the second annular support bar 2072 protruding from the turntable 200 is greater than the depth of the second annular groove 20122, thereby ensuring a gap between the turntable 200 and the base 1012.

[0055] Optionally, the second annular groove 20122 may be provided on the turntable 200 , and the second annular support bar 2072 may be provided on the base 1012 , which can also achieve the above-mentioned purpose.

[0056] Optionally, the second annular support bar 2072 may be a continuous structure or a discontinuous structure. When it is a discontinuous structure, the second annular support bar 2072 is composed of a plurality of bosses arranged at intervals at the same rotation center, and the plurality of bosses are located on the same circumference.

[0057] In one embodiment, Figure 3 and Figure 4 As shown, to facilitate reciprocating linear movement of the first push rod 20125, a first guide rail 10130 and a second slider 10131 are provided on the base 1012. The second slider 10131 is slidably mounted on the first guide rail 10130, and the first push rod 10125 is mounted on the second slider 10131. In this embodiment, the length of the first guide rail 10130 coincides with the length of the first push rod 10125, thereby ensuring that the movement direction of the second slider 10131 coincides with the movement direction of the free end of the first push rod 10125. To ensure the stability of the movement of the second slider 10131, in this embodiment, two first guide rails 10130 are provided. The two first guide rails 10130 are arranged in parallel, and the second slider 10131 is mounted on each of the two first guide rails 10130. The two second sliders 10131 are connected by a first connecting block 10126, and the first push rod 10125 is mounted on the first connecting block 10126.

[0058] Furthermore, in order to drive the second slider 10131, the present embodiment further includes a driving assembly, which includes a first motor 10129, a first screw rod 10127 and a first nut 10128. The first screw rod 10127 is rotatably arranged relative to the base 1012 through a bearing and a bearing frame. In the present embodiment, the first screw rod 10127 is arranged parallel to the first guide rail 10130; the output end of the first motor 10129 is connected to the first screw rod 10127. The first motor 10129 is a commonly used servo motor. In the present embodiment, Figure 3 As shown, the two are connected by a synchronous belt and synchronous wheel structure. Optionally, the first motor 10129 and the first screw rod 10127 can also be connected by gear transmission or coupling. The first connecting member 10126 is connected to the first nut 10128. The forward and reverse rotation of the first motor 10129 drives the first nut 10128 to move back and forth on the first screw rod 10127, and then drives the first push rod 10125 to move back and forth through the first connecting member 10126.

[0059] In one embodiment, Figure 6 、 Figure 14 as well as Figure 15As shown, a sampling port 10111 is provided on the second cover plate 1011, and a detachable sampling cover plate 10112 is provided on the sampling port 10111, wherein the sampling port 10111 is offset relative to the second light-transmitting hole 10113, as shown in FIG. Figure 6 As shown, since a corresponding camera 103 or lens 104 is set at the second light-transmitting hole 10113, in order to facilitate the replacement of the filter 20231, the sampling port 10111 is set at a certain angle relative to the second light-transmitting hole 10113 to provide sufficient replacement space for the filter 20231.

[0060] Specifically, the sampling port 10111 can completely cover the first slider 202, thereby ensuring that the multiple filters 20231 located on the first slider 202 can be exposed at the sampling port 10111. The size of the sampling port 10111 depends on the number of filters 20231 on the same first slider 202. In this embodiment, there are two filters 20231 on each first slider 202, so the sampling port 10111 only needs to expose two filters 20231. In this embodiment, when a sampling port 10111 is provided, the first limiting plate 206 and the first clamping block 205 will not interfere with each other. When the first limiting plate 206 is fixed on the turntable 200, the first clamping block 205 can be removed from the turntable 200 through the sampling port 10111. Thus, by removing the first clamping block 205, the filter 20231 can be replaced at the sampling port 10111, so as to replace the filter 20231 that is not required for the experiment on the current turntable 200.

[0061] Further, if Figure 10 、 Figure 11 as well as Figure 14 As shown, the turntable 200 is also provided with numbers 2011, and a third notch 10115 is provided at the edge of the sampling port 10111 of the second cover plate 1011. When the turntable 200 rotates, the multiple filters 20231 on the first slider 202 are completely exposed at the sampling port 10111. The numbers 2011 set on the turntable 200 can be exposed to the field of view of the experimenter through the third notch 10115. The experimenter can identify and replace the filters 20231 according to the corresponding numbers 2011. When installing or replacing the filters 20231, the experimenter records the model of the filter 20231 corresponding to each number, so that the type of filter 20231 can be distinguished by the number, which is convenient for the experimenter to operate.

[0062] In one embodiment, Figure 2 and Figure 8In order to facilitate the rotation of the turntable 200 relative to the base 101, the figure 7 further includes a first driving shaft 105, on which a first driving disk 1051 is provided. The first driving disk 1051 is detachably arranged on the turntable 200, and the two ends of the first driving shaft 105 are rotatably arranged on the second cover plate 1011 and the base 1012 through bearings.

[0063] Further, if Figure 1 and Figure 2 As shown, a fixing bracket 102 is provided on the second cover plate 1011, and a second motor 1021 is provided on the fixing bracket 102. The output end of the second motor 1021 is dynamically connected to one end of the first drive shaft 105. In this embodiment, the connection is via a coupling. The second motor 1021 is similar to the first motor 10129 and is driven by a servo motor.

[0064] In one embodiment, the present invention further provides an operating method for an imaging device, which is applied to the imaging device in each of the above embodiments and mainly includes the following steps: S1. Confirm the type of filter 20231 required for this experiment; S2. The turntable 200 is driven to rotate relative to the base 101 by the second motor 1021, and the first slider 202 carrying the target filter 20231 is rotated to the second light transmission hole 10113 and the first light transmission hole 10121, and the light is transmitted only through the filter 20231. If the target filter 20231 is exactly at the third light transmission hole 203, the turntable 200 stops rotating and the imaging experiment can be carried out. If the target filter 20231 is not at the third light transmission hole 203, the first motor 20129 rotates, driving the first push rod 20125 to pass through the second notch 10116 and the first notch 204. It extends into the first slide groove 201, driving the first slider 202 to move in the first slide groove 201. At the same time, the first guide rod 2022 located on the first slider 202 compresses the first return spring 2081 so that the target filter 20231 is just located at the third light-transmitting hole 203. At this time, the imaging experiment can be carried out. When the experiment is completed, the first push rod 20125 is reset under the drive of the first motor 20129, and the first slider 202 is reset under the action of the first return spring 2081 and returns to the initial position, that is, the filter 20231 on the first slider 202 that is closest to the rotation center of the turntable 200 is located at the third light-transmitting hole 203.

[0065] In one embodiment, to facilitate the rotation control of the turntable 200, in the initial position, the optical filter 20231 on one of the first sliders 202 closest to the rotation center of the turntable 200 is located exactly at the third light-transmitting hole 203, and the two optical filters 20231 on the other first slider 202 are located exactly at the sampling port 10111. With this configuration, the turntable 200 only needs to be controlled to rotate by an angle of K*(360° / N), where K is a positive integer and N is the number of first slots 202. For example, when N is 10, the turntable 200 rotates by an angle that is an integer multiple of 36 degrees, such as 36 degrees, 72 degrees, or 108 degrees. When N is 18, the turntable 200 rotates by an angle that is an integer multiple of 20 degrees, such as 20 degrees, 40 degrees, or 60 degrees. N can also be another integer, including but not limited to the aforementioned 10 and 18, and can be preset according to specific applications. Since the filter 20231 is located at the third light-transmitting hole 203 when the turntable 200 is in the initial position, each time the turntable 200 rotates by the aforementioned angle K*(360° / N), the first slider 202 with the target filter 20231 can always be rotated to the third light-transmitting hole 203, and the first notch 204 can correspond to the position of the second notch 10116. The first push rod 20125 can abut against the first slider 202 through the first notch 204 and the second notch 10116, and drive the first slider 202 to move in the first slide groove 201.

[0066] Furthermore, the spacing between two adjacent filters 20231 on each first slider 202 is equal. When the first push rod 20125 pushes the first slider 202 to move, the distance of each feed movement is the same. When the number of filters 20231 on each first slider 202 is greater than or equal to 2, assuming that the distance between two adjacent filters 20231 is L, it is only necessary when one end of the first push rod 20125 just contacts the first slider 202. At this time, the first motor 20129 drives the first nut 20128 to feed a distance of L each time, and then the next adjacent filter 20231 on the first slider 202 can be controlled to be located at the third light-transmitting hole 203.

[0067] In this embodiment, there are two filters 20231 on each first slider 202. When the filter 20231 closest to the center of the turntable 200 is located at the third light-transmitting hole 203, the first slider 202 abuts against the side wall of the first slide 201 at the end away from the rotation center of the turntable 200. When the filter 20231 farthest from the rotation center of the turntable 200 is at the third light-transmitting hole 203, the first slider 202 abuts against the side wall of the first slide 201 at the end close to the rotation center of the turntable 200.

[0068] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention. Such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An imaging device, characterized in that: include: A base is provided with a first cavity, and the base is provided with a first light-transmitting hole and a second light-transmitting hole arranged coaxially; a lens, detachably disposed at the first light transmission hole; and a camera, detachably disposed at the second light transmission hole; a turntable rotatably disposed in the first cavity of the base, the turntable being provided with a plurality of first chutes distributed at intervals, the first chutes being circumferentially distributed around the rotation center of the turntable, each of the first chutes being provided with a first slider, the first slider being capable of reciprocating linear movement within the first chutes along the length direction of the first chutes, the first slider being provided with a plurality of filters distributed at intervals along a linear direction, the distribution direction of the filters being consistent with the movement direction of the first slider; Among them, a third light-transmitting hole is provided on the first slide groove, and the third light-transmitting hole can be coaxial with the first light-transmitting hole and the second light-transmitting hole. Each filter located on the first slider can be moved to the third light-transmitting hole and cover the third light-transmitting hole. The light passes through the lens, the first light-transmitting hole, the third light-transmitting hole, the filter, and the second light-transmitting hole in sequence to the camera.

2. An imaging device according to claim 1, characterized in that: The first sliding groove is provided with a preset length, and the width of the first sliding groove is adapted to the width of the first sliding block.

3. An imaging device according to claim 2, characterized in that: The turntable is provided with a detachable first limit block, which is arranged along the length direction of the first chute. The first limit block protrudes from the edge of the first chute, and the first sliding block partially abuts against the first limit block.

4. An imaging device according to claim 1, characterized in that: The first slider is provided with a plurality of through fourth light-transmitting holes, and the optical filter is detachably arranged on the fourth light-transmitting holes, and the optical filter covers the fourth light-transmitting holes.

5. An imaging device according to claim 4, characterized in that: A first pressing block is provided between two adjacent fourth light-transmitting holes. The first pressing block protrudes relative to the edge of the first sliding groove. The first pressing block is detachably provided on the turntable.

6. The imaging device according to claim 1, wherein: The moving directions of the plurality of first sliding blocks all point to the rotation center of the turntable.

7. An imaging device according to claim 6, characterized in that: The turntable is provided with a plurality of first guide grooves, the distribution direction of the first guide grooves being consistent with the movement direction of the first slider, the first guide grooves being connected to the first chute, and the number of the first guide grooves being equal to the number of the first sliders; the length of the first guide grooves being greater than or equal to the distance the first slider moves relative to the first chute; A first guide rod is provided on the first slider, one end of which extends into the first guide slot. A first return spring is provided in the first guide slot, one end of which abuts against one end of the first guide rod.

8. An imaging device according to claim 7, characterized in that: The turntable is provided with a first cover plate, which covers a plurality of first guide grooves. The first cover plate is detachably arranged on the turntable.

9. The imaging device according to claim 7, wherein: It also includes a first push rod movably arranged on the base and a plurality of first notches arranged on the side of the turntable, the number of the first notches is equal to the number of the first sliding grooves, the first notches are connected to the first sliding grooves, one end of the first push rod can pass through the first notch and abut against the first slider, and the moving direction of the free end of the first push rod is consistent with the moving direction of the first slider.

10. An imaging device according to claim 9, characterized in that: The first notches are evenly distributed along the sidewall of the outer periphery of the turntable.

11. The imaging device according to claim 8, wherein: The base includes a base and a second cover plate, wherein the base and the base form a first cavity, the first light-transmitting hole is arranged on the base, and the second light-transmitting hole is arranged on the second cover plate.

12. An imaging device according to claim 11, characterized in that: A preset distance is set between the turntable and the base and the second cover plate, a first annular support structure is set between the turntable and the second cover plate, and a second annular support structure is set between the turntable and the base; The first annular support structure includes a first annular groove provided on the second cover plate and a first annular support bar provided on the first cover plate, or a first annular support bar provided on the second cover plate and a first annular groove provided on the first cover plate, wherein the first annular support bar abuts against the first annular groove; The second annular support structure includes a second annular groove provided on the base and a second annular support bar provided on the turntable, or a second annular support bar provided on the base and a second annular groove provided on the turntable, wherein the second annular support bar abuts against the second annular groove; The first annular groove and the second annular groove are concentrically arranged, and the center of the first annular groove coincides with the rotation center of the turntable.

13. The imaging device according to claim 9, wherein: It also includes a first guide rail arranged on the base and a second slider arranged on the first guide rail, the second slider performs reciprocating linear movement on the first guide rail, the first push rod is arranged on the second slider, and the moving direction of the second slider is consistent with the moving direction of the free end of the first push rod.

14. The imaging device according to claim 11, wherein: The second cover plate is provided with a sampling port, a detachable sampling cover plate is provided on the sampling port, the sampling port is offset relative to the second light-transmitting hole, and the plurality of filters on the first slider can be exposed at the sampling port.

15. An imaging device according to claim 14, characterized in that: The turntable is provided with numbers, and a third notch is provided at the edge of the sampling port. When the multiple filters of the first slider are exposed at the sampling port, the positions of the numbers correspond to the positions of the third notch.

16. The imaging device according to claim 11, wherein: It also includes a first driving shaft, a first driving disk is provided on the first driving shaft, the turntable is fixedly arranged on the first driving disk, and the first driving shaft is rotatably arranged relative to the base.

17. An operating method of an imaging device, applied to an imaging device according to any one of claims 1 to 16, characterized in that: The steps include: S1. Confirm the type of filter required for this experiment; S2. Drive the turntable to rotate the first slider carrying the target filter to the first light transmission hole and the second light transmission hole to allow light to pass through the filter; if the target filter is just at the first light transmission hole position, the imaging experiment can be carried out at this time; if not, proceed to the next step; S3. Push the first push rod to drive the first slider to move in the first slide groove until the target filter moves to the first light transmission hole and the second light transmission hole. At this time, the imaging experiment can be carried out. After the experiment is completed, the first push rod is reset and the first slider is reset.

18. The method for operating an imaging device according to claim 17, wherein: The angle of each rotation of the turntable satisfies K*(360° / N), where K is a positive integer and N is the number of the first chutes.

Images