An imaging device and method of operation thereof

Abstract

This invention belongs to the field of imaging technology and provides an imaging device and its operating method. The imaging device includes a base with a first light-transmitting hole and a second light-transmitting hole arranged coaxially. A turntable is rotatably disposed within the base and has several spaced and circumferentially distributed first sliding grooves. Each first sliding groove has a first slider that can reciprocate linearly within the first sliding groove. Several filters are arranged linearly at intervals on the first slider. A third light-transmitting hole is provided on each of the first sliding grooves, and the third light-transmitting hole is coaxial with the first and second light-transmitting holes. Each filter located on the first slider can move to the third light-transmitting hole and cover it. By adopting the above structure, multiple different filters can be located on the same turntable. Different filters can be switched according to experimental needs, making the operation simple, convenient, and highly automated.

Description

Technical Field

[0001] This invention belongs to the field of imaging technology, and specifically refers to an imaging device and its operating method. Background Technology

[0002] Imaging equipment is commonly used in the field of bioimaging technology, where quantitative analysis is performed on the images captured.

[0003] In practical applications, different experiments require the use of light in different wavelength bands. Therefore, different filters are usually installed and replaced before the experiment to meet the experimental requirements. In the existing technology, filters are usually installed and fixed together with the camera lens, which is a relatively simple structure. When switching filters, it is usually necessary to disassemble and replace them. The whole process is relatively troublesome and cumbersome. It cannot meet the requirements of rapid multi-band imaging experiments on the same equipment, nor can it adapt to the needs of different experiments and quickly change filters according to the actual experimental requirements. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides an imaging device to solve the problem of the cumbersome and complicated process of changing filters in the prior art, thereby enabling rapid switching of different filters to meet the needs of different experiments, simplifying the switching process. Furthermore, it provides multiple filters for switching to satisfy the needs of various light sources. Another aspect of the present invention also provides a method for operating the imaging device.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] An imaging device, comprising:

[0007] The base has a first cavity, and the base has a first light-transmitting hole and a second light-transmitting hole arranged coaxially.

[0008] The lens is detachably mounted at the first light-transmitting hole; the camera is detachably mounted at the second light-transmitting hole.

[0009] A turntable is rotatably disposed in the first cavity of the base. The turntable is provided with a plurality of spaced first sliding grooves. The first sliding grooves are circumferentially distributed around the rotation center of the turntable. Each first sliding groove is provided with a first slider. The first slider can reciprocate linearly within the first sliding groove along the length of the first sliding groove. The first slider is provided with a plurality of spaced filters distributed linearly. The distribution direction of the filters is consistent with the movement direction of the first slider.

[0010] The first slide is provided with a third light-transmitting hole, which is 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 it. 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.

[0011] In some embodiments, the first groove has a preset length, and the width of the first groove is adapted to the width of the first slider.

[0012] In some embodiments, the turntable is provided with a detachable first limiting block, the first limiting block is arranged along the length direction of the first slide groove, the first limiting block protrudes from the edge of the first slide groove, and the first slider part abuts against the first limiting block.

[0013] In some embodiments, the first slider is provided with a plurality of through fourth light-transmitting holes, and the filter is detachably disposed on the fourth light-transmitting holes, the filter covering the fourth light-transmitting holes.

[0014] 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 is detachably mounted on the turntable.

[0015] In some embodiments, the movement direction of the plurality of first sliders is all directed toward the rotation center of the turntable.

[0016] In some embodiments, the turntable is provided with a plurality of first guide grooves, the distribution direction of the first guide grooves is consistent with the moving direction of the first slider, the first guide grooves are connected to the first slide groove, the number of the first guide grooves is equal to the number of the first sliders, and the length of the first guide groove is greater than or equal to the distance the first slider moves relative to the first slide groove.

[0017] The first slider is provided with a first guide rod, one end of which extends into the first guide groove. A first return spring is provided in the first guide groove, and one end of the first return spring abuts against one end of the first guide rod.

[0018] In some embodiments, the turntable is provided with a first cover plate that covers a plurality of first guide grooves, and the first cover plate is detachably mounted on the turntable.

[0019] In some embodiments, the system further includes a first push rod movably disposed on the base and a plurality of first notches disposed on the side of the turntable. The number of first notches is equal to the number of first slides. The first notches communicate with the first slides. One end of the first push rod can pass through the first notch and abut against the first slider. The direction of movement of the free end of the first push rod is consistent with the direction of movement of the first slider.

[0020] In some embodiments, the first notch is evenly distributed along the sidewall of the outer periphery of the turntable.

[0021] In some embodiments, the base includes a base and a second cover plate, the base and the base forming a first cavity, the first light-transmitting hole being disposed on the base, and the second light-transmitting hole being disposed on the second cover plate.

[0022] In some embodiments, a preset distance is provided 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;

[0023] The first annular support structure includes a first annular groove disposed on the second cover plate and a first annular support strip disposed on the first cover plate, or a first annular support strip disposed on the second cover plate and a first annular groove disposed on the first cover plate, wherein the first annular support strip abuts against the first annular groove.

[0024] The second annular support structure includes a second annular groove disposed on the base and a second annular support bar disposed on the turntable, or a second annular support bar disposed on the base and a second annular groove disposed on the turntable, wherein the second annular support bar abuts against the second annular groove;

[0025] 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.

[0026] In some embodiments, the system further includes a first guide rail disposed on the base and a second slider disposed on the first guide rail. The second slider reciprocates linearly on the first guide rail. The first push rod is disposed on the second slider, and the movement direction of the second slider is consistent with the movement direction of the free end of the first push rod.

[0027] In some embodiments, the second cover plate is provided with a sampling port, and the sampling port is provided with a detachable sampling cover plate. The sampling port is offset relative to the second light-transmitting hole, and a plurality of filters on the first slider can be exposed at the sampling port.

[0028] In some embodiments, the turntable is numbered, and the edge of the sampling port is provided with a third notch. When multiple filters of the first slider are exposed at the sampling port, the position of the number corresponds to the position of the third notch.

[0029] In some embodiments, a first drive shaft is also included, on which a first drive disk is provided, the turntable is fixedly disposed on the first drive disk, and the first drive shaft is rotatably disposed relative to the base.

[0030] The present invention further provides an operating method for an imaging device, applied to an imaging device described in the above embodiments, comprising the following steps:

[0031] S1. Confirm the type of filter required for this experiment;

[0032] 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 exactly at the first light-transmitting hole, the imaging experiment can be performed at this time. If not, proceed to the next step.

[0033] S3. Push the first push rod to move the first slider in the first slide groove until the target filter moves to the first light-transmitting hole and the second light-transmitting hole. At this time, the imaging experiment can be carried out. After the experiment is completed, the first push rod and the first slider are reset.

[0034] In some implementations, the turntable rotates by an angle that satisfies K*(360° / N) each time, where K is a positive integer and N is the number of first grooves.

[0035] Compared with the prior art, the beneficial effects of this invention are as follows:

[0036] This invention utilizes a turntable structure with several spaced-apart first sliders. Each first slider holds multiple filters, forming a turntable structure with multiple rings of filters. The rotation of the turntable, combined with the reciprocating linear movement of the first sliders, enables the switching of different filters, meeting diverse experimental needs. This eliminates the need for repeated disassembly and replacement, making operation convenient and time-saving. Furthermore, while capable of handling numerous experiments requiring different filters, this device occupies a small space and is highly practical.

[0037] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0038] Figure 1 This is a perspective view of the imaging device of the present invention;

[0039] Figure 2 for Figure 1 Exploded view in the image;

[0040] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0041] Figure 4 This is a first perspective view of the base of the imaging device of the present invention;

[0042] Figure 5 This is a second perspective view of the base of the imaging device of the present invention;

[0043] Figure 6 This is a first perspective view of the second cover plate of the imaging device of the present invention;

[0044] Figure 7 This is an exploded view of the rotating disk of the imaging device of the present invention;

[0045] Figure 8 This is a perspective view of the rotating disk of the imaging device of the present invention from a lower side view.

[0046] Figure 9 This is a top view of the rotating disk of the imaging device of the present invention;

[0047] Figure 10 for Figure 9 Enlarged view at point B in the middle;

[0048] Figure 11 This is a schematic diagram of the structure of a single first groove in the imaging device of the present invention;

[0049] Figure 12 This is a perspective view of the first slider of the imaging device of the present invention;

[0050] Figure 13 A cross-sectional view of the first slider of the imaging device of the present invention with a filter;

[0051] Figure 14 This is a schematic diagram of the imaging device of the present invention with the first slider located at the sampling port;

[0052] Figure 15 This is a three-dimensional structural diagram of the sampling port of the imaging device of the present invention. Detailed Implementation

[0053] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the embodiments, unless otherwise stated, the terms "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the present application must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0054] like Figure 1 and 2 As shown, an imaging device provided by the present invention mainly includes a base 101 and a turntable 200, the turntable 200 being rotatably mounted on the base 101. Specifically, a first cavity is provided on the base 101 for mounting the turntable 200, as shown... 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 10121 are circular and coaxially arranged. Optionally, the shape of the second light-transmitting hole 10113 and the first light-transmitting hole 10121 is not limited by the present invention and can be rectangular, pentagonal, or other structural shapes, as long as the projection positions of the second light-transmitting hole 10113 and the first light-transmitting hole 10121 on the plane where the turntable rotates 200 degrees correspond, as in the aforementioned circular structure where the second light-transmitting hole 10113 and the first light-transmitting hole 10121 are coaxially arranged. It should be noted that, in order to avoid light interference, the first cavity is a sealed cavity that blocks external light. The light source only enters from the first light-transmitting hole 10121 and exits from the second light-transmitting hole 10113.

[0055] Lens 104 is detachably mounted at the first light-transmitting hole 10121, and camera 103 is detachably mounted at the second light-transmitting hole 10113. Lens 104 covers the first light-transmitting hole 10121, and camera 103 covers the second light-transmitting hole 10113. Specifically, second mounting base 10114 is detachably mounted at the second light-transmitting hole 10113, and a second mounting position is provided on the second mounting base 10114; first mounting base 10124 is detachably mounted at the first light-transmitting hole 10121, and a first mounting position is provided on the first mounting base 10124; lens 104 is detachably connected to the first mounting position of the first mounting base 10124, and camera 103 is detachably mounted at the second mounting position of the second mounting base 10114. A light source is provided on one side of the lens 104. The light source passes sequentially through the lens 104, the first light-transmitting hole 10121, the third light-transmitting hole 203, the filter 20231, the second light-transmitting hole 10113, and finally to the camera 103. In this embodiment, the lens 104 can be replaced according to experimental needs, and the camera 103 can be a line scan camera or an area scan camera. The detachable connection between the second mounting base 10114 and the first mounting base 10124 includes, but is not limited to, a locking structure using bolts or screws. The camera 103 is positioned by a hole shaft, and multiple threaded holes are provided on the second mounting base 10114 for locking and fixing with screws or bolts. In this embodiment, an internal thread is provided on the first mounting base 10124, and a matching external thread is provided on the lens 104, allowing the lens 104 to be detachably mounted on the second mounting position through the threaded structure.

[0056] In this embodiment, the first light-transmitting hole 10121 is disposed on the first mounting base 10124, and the second light-transmitting hole 10113 is disposed on the second mounting base 10114. The first mounting base 10124 is detachably disposed on the base 1012, and the second mounting base 10114 is detachably disposed on the second cover plate 1011. The detachable method includes, but is not limited to, a locking structure of bolts or screws.

[0057] The turntable 200 is disposed within the first cavity of the base 101 and is capable of rotating relative to the base 101. Multiple first grooves 201 are provided on the turntable 200, such as... Figure 7 and Figure 10 As shown, the first slide grooves 201 are spaced apart, and multiple first slide grooves 201 are circumferentially distributed around the rotation center of the turntable 200. A first slider 202 is provided on each first slide groove 201, and the first slider 202 can reciprocate linearly along the length of the first slide groove 201. Multiple different filters 20231 are provided on the first slider 202, such as... Figure 13 As shown, multiple filters 20231 are linearly distributed, consistent with the length direction of the first groove 201. A third light-transmitting hole 203 is provided through the first groove 201, as shown... Figure 11As shown, each third light-transmitting hole 203 is equidistant from the rotation center of the turntable 200, so that each third light-transmitting hole 203 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 set on the first slider 202 can cover the third light-transmitting hole 203, so that light entering the camera 103 from the lens 104 must be completely filtered by the filters 20231 before it can be emitted, thereby achieving the screening of the light required for the experiment.

[0058] In this embodiment, for ease of control and to maximize the use of the space of the turntable 200, the spacing between two adjacent filters 20231 is the same, and the first grooves 201 are evenly distributed on the turntable 200, such as... Figure 9 As shown, each first groove 201 corresponds to an auxiliary line, and the first grooves 201 are symmetrically arranged about the auxiliary line. The included angle between the two auxiliary lines corresponding to two adjacent first grooves 201 is α, so that multiple first grooves 201 are evenly distributed circumferentially on the turntable 200. The minimum number of filters 20231 is two, but if the size of the turntable 200 is not considered, it can be three, four, or other integers. By adopting the above scheme, multiple turns of different filters 20231 can be set. By rotating the turntable 200 and moving the first slider 202 within the first groove 201, the filters 20231 can be switched arbitrarily on the turntable 200, thereby meeting different light source requirements, simplifying the experimental process, improving experimental efficiency, and being convenient and simple to operate.

[0059] In one embodiment, the first groove 201 has a preset length, allowing each filter 20231 on the first slider 202 to move to the third light-transmitting hole 203 and completely cover it. To reduce the area occupied by the first groove 201 on the turntable 200, the width of the first groove 201 matches the width of the first slider 202, eliminating the need for additional limiting structures to restrict the slider 202's reciprocating linear movement and 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, minimizing its width. By setting the first groove 201 to match the width of the first slider 202, the area occupied by the first groove 201 on the turntable 200 is reduced, maximizing the number of first grooves 201.

[0060] In one embodiment, in order to ensure that the first slider 202 moves stably within the first slide groove 201 and does not detach from the first slide groove 201, a first limiting block 206 is provided on the turntable 200. The first limiting block is detachably configured relative to the turntable. Figure 7 and Figure 10As shown, the first limiting block 206 is set along the length direction of the first slide groove 201, that is, the moving direction of the first slider 202. The first limiting 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 limiting block 206 is not removed, the first slider 202 cannot be dislodged from the first slide groove 201, thereby limiting the first slider 202 in the vertical direction of the plane where the turntable 200 rotates.

[0061] In this embodiment, the first limiting block 206 is a thin-plate mechanism, and corresponding grooves are provided on the turntable 200, such as... Figure 11 As shown (not labeled), this prevents the first limiting block 206 from protruding entirely relative to the turntable 200, making the structure of the turntable 200 more compact. It should be noted that the first limiting block 206 has a certain length, ensuring that it can limit the movement of the first slider 202 regardless of its position. Simultaneously, the protruding distribution of the first limiting block 206 will not obstruct the filter 20231, preventing light blockage. In this embodiment, to reduce the number of times the first limiting block 206 is installed, it can limit the movement of the first slider 202 within two adjacent first sliding grooves 201, such as... Figure 9 As shown. Optionally, the first limiting block 206 can also be a split structure, that is, two first limiting blocks 206 are provided for each first slide groove 201. The detachable connection method is conventional bolt or screw fixing, which is not limited by the present invention.

[0062] In one embodiment, 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 2021 protruding from the inner wall is provided inside the fourth light-transmitting hole 2023. The filter 20231 is adapted to the shape of the fourth light-transmitting hole 2023. The filter 20231 abuts against the annular abutment 2021 according to its own weight. The filter 20231 covers the fourth light-transmitting hole 2023 so that the light source can only be transmitted through the filter 20231.

[0063] Furthermore, a first clamping block 205 is provided at the edge of the fourth light-transmitting hole 2023, such as... Figure 10 As shown, the first clamping block 205 is a thin sheet structure. The first clamping block 205 protrudes relative to the edge of the fourth light-transmitting hole 2023, thereby limiting the position of the filter 20231 and preventing the filter 20231 from detaching from the fourth light-transmitting hole 2023. Figure 12As shown, the first pressing block 205 is detachably mounted on the turntable 200. A recessed groove is provided on the turntable 200 to prevent the first pressing block 205 from protruding relative to the turntable 200. Simultaneously, it avoids motion interference with 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 of the turntable 200. In this embodiment, the first pressing block 205 is configured 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 partially enclose and limit the fourth light-transmitting hole 2023. Figure 10 As shown, in this embodiment, the filter 20231 is partially surrounded and limited; a fully surrounded and limited structure would be a complete circular ring structure.

[0064] To reduce the number of first clamping blocks 205 required, in this embodiment, one first clamping block 205 can limit the placement of filters 20231 within two adjacent fourth light-transmitting holes 2023. A threaded hole is provided in the middle of the two fourth light-transmitting holes 2023. Figure 12 As shown (not labeled in the diagram), the first clamping block 205 is locked and fixed by bolts or screws.

[0065] In one embodiment, such as Figure 9 As shown, to facilitate the uniform distribution of the first grooves 201 and for the design of the movement of the first sliders 202, the movement directions of the multiple first sliders 202 all point towards the rotation center of the turntable 200. In this embodiment, the first grooves 201 have a symmetrical structure. Figure 9 The auxiliary lines shown are symmetrical, and the included angle between two adjacent auxiliary lines is α. By adopting the above structure, the extension line of the symmetrical central axis of the first slide groove 201 passes through the rotation center of the turntable, so that the first slide groove 201 is reasonably distributed on the turntable 200, and the number of the first slide groove 201 can be maximized, which facilitates the subsequent movement control of the first slider 202.

[0066] 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 moving direction of the first slider 202, that is, 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 slide grooves 201, and the number of first guide grooves 208 is equal to the number of first slide grooves 201. It should be particularly noted that the length of the first guide grooves 208 is greater than the moving distance of the first slider 202 in the first slide groove 201.

[0067] Specifically, such as Figure 12As shown, a first guide rod 2022 is provided on the first slider 202, with one end of the first guide rod 2022 extending into the first guide groove 208. A first return spring 2081 is provided within the first guide groove 208, with one end of the first return spring 2081 abutting against one end of the first guide rod 2022. By ensuring that the length of the first guide groove 208 is greater than the moving distance of the first slider 202, it is guaranteed that the first slider 202 can move into position, allowing the filter 20231, located away from the rotation center of the turntable 200, to reach the third light-transmitting hole 203.

[0068] In this embodiment, the first slider 202 is driven by an external force, which pushes the first slider 202 to move. Therefore, when the first slider 202 is in the initial state, that is, when the first slider 202 has not moved, it is only subject to 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-transmitting hole 203. When the first slider 202 moves towards the rotation center of the turntable 200, each filter 20231 on the first slider 202 can reach the third light-transmitting hole 203 until the filter 20231 that is farthest from the rotation center of the turntable 200 reaches the third light-transmitting hole 203. At this time, the first return spring 2081 is compressed to its maximum length. 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-transmitting hole 203.

[0069] Furthermore, it should be noted in the above embodiments that 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 limit structure is required. When the filter 20231 on the first slider 202 that is farthest from the rotation center of the turntable 200 is located at the third light-transmitting hole 203, the other end of the first slider 202 abuts against the inner wall of the first slide groove 201, and no additional limit structure is required. In this embodiment, there are two filters 20231 on each first slider 202. Therefore, when either end of the first slider 202 abuts against the inner wall of the first slide groove 201, there will always be one filter 20231 located at the third light-transmitting hole 203. By adopting this structure, the limit design between the first slider 202 and the first slide groove 201 is simplified, and the operation is simple.

[0070] Optionally, the number of filters 20231 on the same first slider 202 can be 3, 4 or even 5. As long as the turntable 200 is large enough and the space occupied by the whole device is not considered, it can be achieved. In this case, except for the filters 20231 located at both ends, the movement distance of the first slider 202 does not need to be controlled. The filter 20231 located in the middle of the first slider 202 needs to be controlled by an external structure. At this time, it is necessary to know the center distance between two adjacent filters 20231. Each time the center distance is moved, the filter 20231 in the middle of the first slider 202 can accurately reach the third light-transmitting hole 203.

[0071] In one embodiment, such as Figure 7 and Figure 9 As shown, in order to facilitate the installation of the first return spring 2081 and to prevent the first return spring 2081 from popping 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 mounted on the turntable 200. The detachable connection method of the first cover plate 207 includes, but is not limited to, locking and fixing by bolts or screws.

[0072] In one embodiment, to facilitate the movement of the first slider 202 relative to the first slide groove 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, wherein the number of first notches 204 is equal to the number of first slide grooves 201. The first notches 204 connect the outside of the turntable with the first slide groove 201. The first push rod 10125 can extend into the first slide groove 201 through the first notches 204 and abut against the first slider 202, thereby driving the first slider 202 to move relative to the first slide groove 201. The moving direction of the first push rod 20125 is consistent with the moving direction of the first slider 202. In this embodiment, the first push rod 20125 is movably disposed on the base 101 and has a free end, which can reciprocate linearly.

[0073] Furthermore, to facilitate the control of the rotation angle of the turntable 200, multiple first notches 204 are evenly distributed on the outer peripheral sidewall of the turntable 200. In this embodiment, the turntable 200 itself is a circular structure, meaning that the first push rod 20125 can move the same distance within each first slide groove 201. At this time, the first push rod 20125 can drive any one of the filters 20231 on the first slider 202 to be located at the third light-transmitting hole 203. When the first slider 202 just exits any one of the first notches 204, the turntable can rotate.

[0074] In one embodiment, to facilitate the assembly of the turntable 200, the base 101 is configured as a detachable base 1012 and a second cover plate 1011, which are assembled to form a first cavity, wherein a first light-transmitting hole 10121 is located on the base and a second light-transmitting hole 10113 is located on the second cover plate 1011. Specifically, the second cover plate 1011 has 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 inside 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, the combination of the first annular protrusion 10118 and the second annular protrusion 10123 can make the first cavity opaque and avoid external light from interfering with the experiment.

[0075] Furthermore, such as 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 position of 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 into the first sliding 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, which blocks the second notch 10116 and prevents light from entering the first cavity.

[0076] In one embodiment, a preset distance is provided between the turntable 200 and the base 1012 and the second cover plate 1011 to avoid frictional resistance between the turntable 200 and the base 1012 or the second cover plate 1011 when the turntable 200 rotates. Furthermore, since the turntable 200 itself has a gravitational component, 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 provides support for the turntable 200, and the first annular support structure provides support for the second cover plate 1011. Simultaneously, the first and second annular support structures 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.

[0077] Specifically, such as Figure 6As shown, the first annular support structure includes a first annular groove 10117 disposed on the second cover plate 1011 and a first annular support bar 2071 disposed on the first cover plate 207. The first annular groove 10117 and the first annular support bar 2071 are coaxially arranged, and the center of the first annular groove 10117 and the first annular support bar 2071 coincides with the rotation center of the turntable 200. The first annular support bar 2071 is located in the first annular groove 10117, and the height of the protrusion 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 there is a gap between the turntable 200 and the second cover plate 1011.

[0078] Alternatively, the first annular groove 10117 can be disposed on the first cover plate 207, and the first annular support bar 2071 can be disposed on the second cover plate 1011, which can also achieve the above purpose.

[0079] Optionally, when the second cover plate 1011 is rigid enough, the first annular support bar 2071 does not support the second cover plate 1011; in this case, it only serves as a limit.

[0080] Optionally, the first annular support bar 2071 can be a continuous structure or a discontinuous structure. When it is a continuous structure, the first annular support bar 2071 is composed of multiple bosses spaced apart at the same rotation center, and the multiple bosses are located on the same circumference.

[0081] Similarly, such as Figure 4 and Figure 8 As shown, the second annular support structure includes a second annular groove 10122 disposed on the base 1012 and a second annular support bar 2072 disposed 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. 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 relative to 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.

[0082] Alternatively, the second annular groove 20122 can be set on the turntable 200, and the second annular support bar 2072 can be set on the base 1012, which can also achieve the above purpose.

[0083] Optionally, the second annular support bar 2072 can be a continuous structure or a discontinuous structure. When it is a discontinuous structure, the second annular support bar 2072 is composed of multiple bosses spaced apart at the same rotation center, and the multiple bosses are located on the same circumference.

[0084] In one embodiment, such as Figure 3 and Figure 4 As shown, to facilitate the reciprocating linear movement of the first push rod 20125, a first guide rail 10130 and a second slider 10131 are provided on the base 101. 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 direction of the first guide rail 10130 is consistent with the length direction of the first push rod 10125, thereby ensuring that the movement direction of the second slider 10131 is consistent 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, there are two first guide rails 10130, which are arranged in parallel. A second slider 10131 is mounted on each of the two first guide rails 10130, and the two second sliders 10131 are connected by a first connecting block 10126. The first push rod 10125 is mounted on the first connecting block 10126.

[0085] Furthermore, to drive the second slider 10131, this embodiment also includes a driving assembly, which includes a first motor 10129, a first lead screw 10127, and a first nut 10128. The first lead screw 10127 is rotatably mounted relative to the base 1012 via bearings and a bearing bracket. In this embodiment, the first lead screw 10127 is arranged parallel to the first guide rail 10130. The output end of the first motor 10129 is connected to the first lead screw 10127. The first motor 10129 is a commonly used servo motor. In this embodiment, as shown... Figure 3 As shown, the two are powered by a synchronous belt and synchronous pulley structure. Optionally, the first motor 10129 and the first lead screw 10127 can also be connected by gear transmission or coupling. The first connecting block 10126 is connected to the first nut 10128. The forward and reverse rotation of the first motor 10129 drives the first nut 10128 to reciprocate linearly on the first lead screw 10127, which in turn drives the first push rod 10125 to reciprocate linearly through the first connecting block 10126.

[0086] In one embodiment, such as 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. The sampling port 10111 is offset relative to the second light-transmitting hole 10113. Figure 6 As shown, since a corresponding camera 103 or lens 104 will be 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 space for the replacement of the filter 20231.

[0087] Specifically, the sampling port 10111 can completely cover the first slider 202, thereby ensuring that all 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 the sampling port 10111 is provided, the first limiting block 206 and the first pressing block 205 will not interfere with each other. When the first limiting block 206 is fixed on the turntable 200, the first pressing block 205 can be removed from the turntable 200 through the sampling port 10111. Thus, by removing the first pressing block 205, the filter 20231 can be replaced at the sampling port 10111 so as to replace the filter 20231 that is not currently on the turntable 200 and is not required for the experiment.

[0088] Furthermore, such as Figure 10 , Figure 11 as well as Figure 14 As shown, the turntable 200 is also marked with a number 2011. A third notch 10115 is provided on the edge of the sampling port 10111 of the second cover plate 1011. When the turntable 200 rotates, it causes multiple filters 20231 on the first slider 202 to be fully exposed at the sampling port 10111. The number 2011 on the turntable 200 can be exposed to the field of vision of the experimenter through the third notch 10115. The experimenter can identify and replace the filter 20231 according to the corresponding number 2011. When installing or replacing the filter 20231, the experimenter records the model of the filter 20231 corresponding to each number, so that the type of filter 20231 can be distinguished according to the number, which is convenient for the experimenter.

[0089] In one embodiment, such as Figure 2 and Figure 8As shown in Figure 7, in order to facilitate the rotation of the turntable 200 relative to the base 101, a first drive shaft 105 is also included. A first drive disk 1051 is provided on the first drive shaft 105. The first drive disk 1051 is detachably mounted on the turntable 200. The two ends of the first drive shaft 105 are respectively rotatably mounted on the second cover plate 1011 and the base 1012 through bearings.

[0090] Furthermore, such as Figure 1 and Figure 2 As shown, a fixed bracket 102 is provided on the second cover plate 1011, and a second motor 1021 is provided on the fixed bracket 102. The output end of the second motor 1021 is connected to one end of the first drive shaft 105. In this embodiment, the connection is made through a coupling. The second motor 1021 is the same as the first motor 10129 and is driven by a servo motor.

[0091] In one embodiment, the present invention also provides an operation method for an imaging device, applied to the imaging devices in the above embodiments, mainly including the following steps:

[0092] S1. Confirm the type of filter 20231 required for this experiment;

[0093] S2. The second motor 1021 drives the turntable 200 to rotate relative to the base 101, rotating the first slider 202 carrying the target filter 20231 to the positions of the second light-transmitting hole 10113 and the first light-transmitting hole 10121, with light only passing through the filter 20231. If the target filter 20231 is exactly at the third light-transmitting hole 203, the turntable 200 stops rotating, and the imaging experiment can be performed. If the target filter 20231 is not at the third light-transmitting hole 203, the first motor 20129 rotates, driving the first push rod 20125 through the second notch 10116 and the first notch 204. The first slider 202 is moved into the first slide groove 201, and the first guide rod 2022 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. After 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, returning 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.

[0094] In one embodiment, to facilitate the rotation control of the turntable 200, in the initial position, the filter 20231 on one of the first sliders 202 closest to the rotation center of the turntable 200 is positioned at the third light-transmitting hole 203, and the two filters 20231 on the other first slider 202 are positioned at the sampling port 10111. With this configuration, it is only necessary to control the angle of each rotation of the turntable 200 to be K*(360° / N), where K is a positive integer and N is the number of first grooves 201. For example, when N is 10, the angle rotated by the turntable 200 each time is an integer multiple of 36 degrees, such as 36 degrees, 72 degrees, or 108 degrees. When N is 18, the angle rotated by the turntable 200 each time is an integer multiple of 20 degrees, such as 20 degrees, 40 degrees, or 60 degrees. N can also be other integers, including but not limited to the aforementioned numbers of 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, when the turntable 200 rotates by the aforementioned K*(360° / N) angle, 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 groove 201.

[0095] 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 feeding distance is the same each time. When the number of filters 20231 on each first slider 202 is greater than or equal to 2, assuming the distance between two adjacent filters 20231 is L, then it is only necessary for the first motor 20129 to drive the first nut 20128 to feed a distance of L each time when one end of the first push rod 20125 just touches the first slider 202. This allows the next adjacent filter 20231 on the first slider 202 to be located at the third light-transmitting hole 203.

[0096] In this embodiment, each first slider 202 has two filters 20231. 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 groove 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 located at the third light-transmitting hole 203, the first slider 202 abuts against the side wall of the first slide groove 201 at the end close to the rotation center of the turntable 200.

[0097] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention. These 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: The base has a first cavity, and the base has a first light-transmitting hole and a second light-transmitting hole arranged coaxially. The lens is detachably mounted at the first light-transmitting hole; the camera is detachably mounted at the second light-transmitting hole. A turntable is rotatably disposed in the first cavity of the base. The turntable is provided with a plurality of spaced first sliding grooves. The first sliding grooves are circumferentially distributed around the rotation center of the turntable. Each first sliding groove is provided with a first slider. The first slider can reciprocate linearly within the first sliding groove along the length of the first sliding groove. The first slider is provided with a plurality of spaced filters distributed linearly. The distribution direction of the filters is consistent with the movement direction of the first slider. The first slide is provided with a third light-transmitting hole, which is 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. 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. The turntable is provided with a plurality of first guide grooves, the distribution direction of the first guide grooves is consistent with the moving direction of the first slider, the first guide grooves are connected to the first slide groove, the number of the first guide grooves is equal to the number of the first sliders, and the length of the first guide groove is greater than or equal to the distance the first slider moves relative to the first slide groove. The first slider is provided with a first guide rod, one end of which extends into the first guide groove. A first return spring is provided in the first guide groove, and one end of the first return spring abuts against one end of the first guide rod.

2. The imaging device according to claim 1, characterized in that, The first groove has a preset length, and the width of the first groove is adapted to the width of the first slider.

3. An imaging device according to claim 2, characterized in that, The turntable is provided with a detachable first limiting block. The first limiting block is arranged along the length direction of the first slide groove. The first limiting block protrudes from the edge of the first slide groove, and the first slider part abuts against the first limiting block.

4. An imaging device according to claim 1, characterized in that, The first slider is provided with several through fourth light-transmitting holes, and the filter is detachably disposed on the fourth light-transmitting holes, and the 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 and is detachably mounted on the turntable.

6. An imaging device according to claim 1, characterized in that, The movement direction of the plurality of first sliders is all directed toward the rotation center of the turntable.

7. An imaging device according to claim 1, 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 mounted on the turntable.

8. An imaging device according to claim 1, characterized in that, It also includes a first push rod movably mounted on the base and a plurality of first notches disposed on the side of the turntable. The number of first notches is equal to the number of first slides. The first notches communicate with the first slides. One end of the first push rod can pass through the first notch and abut against the first slider. The direction of movement of the free end of the first push rod is consistent with the direction of movement of the first slider.

9. An imaging device according to claim 8, characterized in that, The first notch is evenly distributed along the sidewall of the outer periphery of the turntable.

10. An imaging device according to claim 7, characterized in that, The base includes a base and a second cover plate, the base and the base forming a first cavity, the first light-transmitting hole being disposed on the base, and the second light-transmitting hole being disposed on the second cover plate.

11. An imaging device according to claim 10, characterized in that, A preset distance is provided between the turntable, 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 disposed on the second cover plate and a first annular support strip disposed on the first cover plate, or a first annular support strip disposed on the second cover plate and a first annular groove disposed on the first cover plate, wherein the first annular support strip abuts against the first annular groove. The second annular support structure includes a second annular groove disposed on the base and a second annular support bar disposed on the turntable, or a second annular support bar disposed on the base and a second annular groove disposed 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.

12. An imaging device according to claim 8, characterized in that, It also includes a first guide rail disposed on the base and a second slider disposed on the first guide rail. The second slider reciprocates linearly on the first guide rail. The first push rod is disposed on the second slider, and the movement direction of the second slider is consistent with the movement direction of the free end of the first push rod.

13. An imaging device according to claim 10, characterized in that, The second cover plate is provided with a sampling port, and the sampling port is provided with a detachable sampling cover plate. 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.

14. An imaging device according to claim 13, characterized in that, The turntable is numbered, and the edge of the sampling port is provided with a third notch. When multiple filters of the first slider are exposed at the sampling port, the position of the number corresponds to the position of the third notch.

15. An imaging device according to claim 10, characterized in that, It also includes a first drive shaft, on which a first drive disk is provided. The turntable is fixedly mounted on the first drive disk, and the first drive shaft is rotatably mounted relative to the base.

16. A method of operating an imaging device, applied to an imaging device according to any one of claims 1-15, characterized in that, Includes 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 and second light-transmitting holes so that light passes through the filter. If the target filter is exactly at the first light-transmitting hole, the imaging experiment can be performed at this time. Otherwise, proceed to the next step. S3. Push the first push rod to move the first slider in the first slide groove until the target filter moves to the first light-transmitting hole and the second light-transmitting hole. At this time, the imaging experiment can be carried out. After the experiment is completed, the first push rod and the first slider are reset.

17. The method of operating an imaging device according to claim 16, characterized in that, The angle through which the turntable rotates each time satisfies K*(360° / N), where K is a positive integer and N is the number of the first grooves.

Images