Camera

Abstract

The present application discloses a camera. The camera includes a spectroscopic component, at least two imaging components and at least two polarizing plate driving components. The spectroscopic component divides the incident light into multiple light paths. Each imaging component images one light path, and includes a static polarizer, a rotating polarizer and a lens component. The lens component includes a lens; the static polarizer and the rotating polarizer are parallel and opposite to each other, and both are perpendicular to the corresponding light from the spectroscopic component, and the rotating polarizer is located between the static polarizer and the lens. Each set of polarizing plate driving components drives the rotating polarizer of a set of imaging components to rotate around the center line of the rotating polarizer relative to the static polarizer. The camera can avoid the influence of impurities and / or stray light by combining the spectroscopic component of the spectroscopic component with the rotating polarizer relative to the static polarizer, which is conducive to finally obtaining a clear image with good imaging effect, thereby achieving the expected monitoring effect.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a camera. Background Art

[0002] Existing underwater cameras usually use monocular imaging. Because underwater imaging is affected by impurities in the water (such as mud, microorganisms, etc.) and underwater stray light (scattered light from the sun and reflected light from aquatic plants, etc.), the monocular imaging effect is poor (for example, unclear), and the growth of underwater aquaculture cannot be efficiently identified. In addition to underwater cameras, some cameras used in non-underwater environments also have the above-mentioned problems. For example, such cameras work in environments such as mines. Impurities and / or stray light in such environments make the imaging effect poor (for example, unclear). Summary of the invention

[0003] The purpose of this application is to disclose a camera.

[0004] The present application discloses a camera. The camera includes a spectroscopic component, at least two imaging components and at least two polarizing plate driving components. The spectroscopic component divides the incident light into multiple light paths. Each imaging component images one light path, and includes a static polarizer, a rotating polarizer and a lens component. The lens component includes a lens; the static polarizer is parallel to and opposite to the rotating polarizer, and both are perpendicular to the corresponding light from the spectroscopic component, and the rotating polarizer is located between the static polarizer and the lens of the lens component. Each set of the polarizing plate driving components drives the rotating polarizer of a set of the imaging components to rotate relative to the static polarizer around the center line of the rotating polarizer.

[0005] In some embodiments, the camera includes a mounting bracket and a first beam splitter driving assembly, the beam splitter assembly includes a beam splitter and a vertical rotation axis, the vertical rotation axis is perpendicular to the beam splitter, and the beam splitter assembly is rotatably assembled to the mounting bracket via the vertical rotation axis; the first beam splitter driving assembly drives the beam splitter assembly to rotate around the center line of the beam splitter assembly. The center line of the beam splitter assembly is perpendicular to the beam splitter.

[0006] In some embodiments, the included angle between the beam splitter and the horizontal plane is a, and 30 degrees ≤ a ≤ 60 degrees.

[0007] In some embodiments, the camera includes a mounting bracket and a second spectrometer driving assembly, the spectrometer assembly includes a spectrometer, the spectrometer assembly includes a radial rotation axis arranged along the radial direction of the spectrometer, and the spectrometer assembly is rotatable on the mounting bracket via the radial rotation axis; the second spectrometer driving assembly drives the spectrometer assembly to rotate around an axis, and the axis coincides with the diameter of the spectrometer.

[0008] In some embodiments, the beam splitter assembly includes a beam splitter, which is inclined in a horizontal direction to split the incident light into two mutually perpendicular light rays.

[0009] In some embodiments, the camera includes a mounting bracket, and the mounting bracket includes a spectrometer mounting wall and two polarizer mounting walls, wherein: the spectrometer mounting wall is inclined relative to a horizontal plane and is mounted with the spectrometer; one of the polarizer mounting walls is located in a horizontal direction, and the other polarizer mounting wall is located in a vertical direction, and the two polarizer mounting walls are respectively provided with a through light entrance, and the static polarizer is fixed in the light entrance; the rotating polarizer is rotatably assembled on the polarizer mounting wall, and the lens assembly is assembled on the polarizer mounting wall; and the center line of the lens assembly, the center line of the rotating polarizer and the center line of the static polarizer coincide.

[0010] In some embodiments, the camera includes a mounting bracket, and all static polarizers are assembled on the mounting bracket; each set of the imaging components includes a fixing part and a rotating frame, and the fixing part is assembled on the mounting bracket or is integrally formed with the mounting bracket; the rotating frame is rotatably assembled with the fixing part; the rotating frame is fixed with the rotating polarizer, and the rotating frame is driven by the corresponding polarizer driving assembly; the rotating frame is provided with a through hole; the lens of the lens assembly extends into the through hole, opposite to the rotating polarizer.

[0011] In some embodiments, the mounting bracket includes a light entrance and fixing parts evenly distributed along the circumference of the light entrance, the static polarizer is fixed in the light entrance, and the fixing member is fixedly connected to the fixing parts.

[0012] In some embodiments, the camera includes a mounting bracket, the mounting bracket includes a light entrance that passes through the mounting bracket, the light entrance is provided with a supporting boss surrounding the light entrance, the supporting boss is provided with a boss glue dispensing groove, and the static polarizer is bonded to the supporting boss through the glue in the boss glue dispensing groove; or, the imaging component includes a rotating frame, the rotating frame includes a through hole; the through hole is provided with a supporting step surrounding the through hole, the supporting step is provided with a step glue dispensing groove; the rotating polarizer is bonded to the supporting step through the glue in the step glue dispensing groove.

[0013] In some embodiments, each set of the imaging assembly includes a fixed part and a rotating frame; the rotating frame is rotatably assembled with the fixed part; the rotating frame is fixed with the rotating polarizer; the rotating frame is engaged with the polarizer driving assembly. The polarizer driving assembly is located to the side of the imaging assembly and includes a motor; the motor shaft of the motor is parallel to the center line of the rotating polarizer.

[0014] For the camera, since the camera of the present application divides the incident light into multiple light paths through the light splitting component, the multiple light paths are imaged by multiple sets of the imaging components to obtain initial images at multiple angles, and ultimately more images can be provided for subsequent algorithm analysis (crossing, filtering and other software algorithm analysis), and at the same time, the rotating polarizer rotates relative to the static polarizer, thereby obtaining more pictures of different angles, different areas and different transmittances of the target object. Furthermore, for each light path, the rotating polarizer is driven by the polarizer driving component to rotate relative to the static polarizer, so as to achieve detailed analysis of the image of a single light path, thereby obtaining a multi-dimensional picture on the subdivided features, which is convenient for accurate detailed analysis of local features. Finally, the light splitting of the light splitting component combined with the rotating polarizer relative to the static polarizer can avoid the influence of impurities and / or stray light, which is conducive to finally obtaining a clear image, and the imaging image effect is good, thereby achieving the expected monitoring effect, such as target state detection, quantity statistics, high-definition display, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a camera according to an embodiment of the present application;

[0016] Figure 2 is a schematic diagram showing the relative rotation of a rotating polarizer and a static polarizer according to an embodiment of the present application;

[0017] Figure 3 is a stereoscopic diagram of an assembly composed of relevant components of a camera according to an embodiment of the present application;

[0018] Figure 4 yes Figure 3 An exploded view of the relevant components of the camera shown;

[0019] Figure 5 is along Figure 3 A cross-sectional view of the AA line;

[0020] Figure 6 It is the overall structure of the camera in use according to the embodiment of the present application;

[0021] Figure 7 yes Figure 5 A magnified view of part A;

[0022] Figure 8 is a three-dimensional view of an assembly composed of related components of a camera shown in an embodiment of the present application at another angle;

[0023] Fig. 9 is a schematic diagram showing a mounting bracket at an angle according to an embodiment of the present application;

[0024] Fig.10 is a schematic diagram showing a mounting bracket at another angle according to an embodiment of the present application;

[0025] Fig.11 is a schematic diagram of an assembly consisting of a first light splitting driving component, a light splitting component and a mounting bracket according to an embodiment of the present application;

[0026] Fig.12 It is a schematic diagram of an assembly consisting of a first splitter driving component, a splitter component and a mounting bracket according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] Here, the technical solutions in the embodiments (or "implementation methods") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0028] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0029] See also Figure 1 , Figures 3 to 5 and Figure 8 The present application discloses a camera. The camera can be used in underwater environments, and can also be used in environments such as mines where impurities and / or stray light affect the imaging effect. The camera includes a light splitting component 1, at least two imaging components and at least two polarizer drive components. Figure 1 and Figure 6 In the use state, the light of the target object 20 is directed to the light splitting component 1 through the window glass 30. The light splitting component 1 splits the incident light into multiple light paths. The light splitting component 1 is not limited to the light splitter of the present application. In some embodiments, the light splitting component 1 can be a polyhedron to achieve the splitting into multiple light paths. Each set of imaging components images one light path, that is, the number of imaging components is equal to the number of paths into which the light is split. Figure 1, the incident light L is divided into two paths of light (a first path of light L1 propagating in the vertical direction and a second path of light L2 propagating in the horizontal direction), and there are two sets of imaging components, which are named as the first imaging component 21 and the second imaging component 22 for easy distinction. The first imaging component 21 images the path of light transmitted in the vertical direction, and the second imaging component 22 images the path of light transmitted in the horizontal direction.

[0030] Each imaging assembly 21 includes a static polarizer 211, a rotating polarizer 212 and a lens assembly 213. The lens assembly 213 includes a lens 2131. The static polarizer 211 refers to a polarizer that is in a static state during the operation of the camera. The rotating polarizer 212 refers to a polarizer that can rotate relative to the static polarizer 211. Their structures can be the same or different. The static polarizer 211 is parallel to the rotating polarizer 212 and is perpendicular to the corresponding light from the light splitting assembly 1. For details, see Figure 1 Combined with Figure 2 For the vertically transmitted light L1, the static polarizer 211 and the rotating polarizer 212 are both placed horizontally and perpendicular to the light L1. For the horizontally transmitted light L2, the static polarizer 211 and the rotating polarizer 212 are both placed vertically and perpendicular to the light L2. The rotating polarizer 212 is located between the static polarizer 211 and the lens 2131 of the lens assembly 213. In this way, each light beam from the spectroscopic component 1 passes through the static polarizer 211 and the rotating polarizer 212 in sequence and enters the lens 2131 of the lens assembly 213 for imaging. Of course, for each imaging component, their structures can be the same or different as long as the imaging purpose can be achieved. For example, the components of the first imaging component 21 can have a different structure from the components of the second imaging component 22.

[0031] Each set of the polarizer driving assembly drives the rotating polarizer 212 of a set of the imaging assembly to rotate relative to the static polarizer 211 around the center line of the rotating polarizer 212. Figure 1 The r and R are shown in Figure 1 , Figures 3 to 5 , Figure 6 and Figure 8In the embodiment, the number of polarizer drive components is the same as the number of imaging components. For the sake of distinction, they are named as the first polarizer drive component 31 and the second polarizer drive component 32. In other embodiments, the number of polarizer drive components may not be equal to the number of imaging components. For example, in the present application, the rotating polarizer 212 of the imaging component 21 needs to rotate (clockwise and counterclockwise), which can be achieved by one set of polarizer drive components or by two sets of polarizer drive components, one set of polarizer drive components realizes the clockwise rotation of the rotating polarizer 212, and the other set of polarizer drive components realizes the counterclockwise rotation of the rotating polarizer 212. See Figure 2 , the rotation of the rotating polarizer 212 relative to the static polarizer 211 is described as follows:

[0032] The static polarizer 211 and the rotating polarizer 212 are respectively provided with a mark 2110. In the initial state where the two are not rotated relative to each other, the marks 2110 of the two are aligned, and the corresponding rotating polarizer 212 is driven by the polarizer driving assembly. The angle b between the rotating polarizer 212 and the static polarizer 211 is the angle of rotation of the rotating polarizer 212 relative to the static polarizer 211. Of course, how the rotating polarizer 212 rotates relative to the static polarizer 211 can be achieved in any way, and is not limited to the implementation described in this application.

[0033] As set above, for the camera working underwater or in a similar environment, since the camera of the present application divides the incident light into multiple light paths through the light splitting component 1, the multiple light paths are imaged by multiple sets of the imaging components to obtain the initial image at multiple angles, and finally provide more images for the subsequent algorithm analysis (cross, filtering and other software algorithm analysis); at the same time, the rotating polarizer 212 rotates relative to the static polarizer 211, so as to obtain more pictures of different angles, different areas and different transmittances of the target object, and further, for each light path, the rotating polarizer 212 is driven by the polarizer driving component to rotate relative to the static polarizer 211 (the amount of light entering the light splitting component to the rotating polarizer can be adjusted), so as to realize the detailed analysis of the image of the single light path, so as to obtain a multi-dimensional picture on the subdivided features, which is convenient for accurate detailed analysis of local features. Finally, the light splitting of the light splitting component and the rotating polarizer relative to the static polarizer can avoid the influence of impurities and / or stray light, which is conducive to finally obtaining a clear image, and the imaging image effect is good, so as to achieve the expected monitoring effect, such as target state detection, quantity statistics, high-definition display, etc. In some implementations, the camera has only one optical path and can only obtain images from a single angle, resulting in fewer images available for algorithm training and processing, and the final image is unclear or lacks image information, which cannot achieve the expected monitoring effect. In addition, since the rotating polarizer 212 of each imaging component is driven by the corresponding polarizer driving component, the images can be independently produced without interfering with each other and can be flexibly adjusted.

[0034] In some embodiments, see Fig.11 The camera includes a mounting bracket 4 and a first light splitting driving component 5. The light splitting component 1 includes a light splitter and a vertical rotation axis. Although the vertical rotation axis is not shown in the figure, the technicians can Fig.11 The rotation direction indicated in the figure can be used to understand the structure of the vertical rotation axis. The vertical rotation axis is perpendicular to the spectrometer 11, and the spectrometer component is rotatably assembled to the mounting bracket 4 through the vertical rotation axis. There is no limit to how to assemble, for example, the spectrometer component 1 is assembled to the mounting bracket 4 through components such as bearings. The first spectrometer driving component 5 drives the spectrometer component 1 to rotate around the center line O of the spectrometer component 1. The center line O of the spectrometer component 1 is perpendicular to the spectrometer 11. The first spectrometer driving component 5 is not limited to the structure of the present application, and a belt drive or the like may also be adopted. In an embodiment of the present application, the first spectrometer driving component 5 includes a first spectrometer motor 51 and a first spectrometer gear 52 assembled to the first spectrometer motor 51. In this case, the spectrometer component 1 includes teeth, so that the spectrometer component 1 is meshed with the first spectrometer gear 52 of the first spectrometer driving component 5 through the teeth, thereby realizing the rotation of the spectrometer component 1.

[0035] As set up above, the spectroscopic component 1 rotates around the center line O (the amount of light entering the spectroscopic component through the window can be adjusted), and combined with the rotation of the rotating polarizer 212 relative to the static polarizer 211, more light corresponding to targets with different angles and different transmittances can be obtained. The light enters the lens through the rotating polarizer to achieve imaging and obtain pictures of the target at different angles, different areas, and different transmittances, avoiding the influence of impurities and / or stray light, and is more conducive to finally obtaining a clear image with good imaging effect, achieving the expected monitoring effect, such as target state detection, quantity statistics, high-definition display, etc.

[0036] See also Fig.12 The camera includes a mounting bracket 4 and a second beam splitter driving component 6. The beam splitter component 1 includes a beam splitter 11 and a radial shaft 12 arranged along the radial direction of the beam splitter 11. The beam splitter component 1 is rotatably connected to the mounting bracket 4 via the radial shaft 12. The second beam splitter driving component 6 drives the beam splitter component 1 to rotate around an axis F, and the axis F coincides with the diameter of the beam splitter 11. The beam splitter component 1 rotates around the axis F, that is, the beam splitter component 1 is adjusted. Figure 1 The angle a shown is not limited to 30 degrees ≤ a ≤ 60 degrees. Fig.12 The axis F and the rotation directions F1 and F2 of the light splitting component 1 are shown. There is no limitation on how the second light splitting driving component 6 drives the light splitting component 1 to rotate. For example, Fig.12In the embodiment, the second splitting driving light assembly 6 includes a second splitting motor 61 and a second splitting gear 62 assembled on the second splitting motor 61. A third splitting gear 63 is assembled on one of the radial rotating shafts. The second splitting gear 62 and the third splitting gear 63 are meshed, whereby the second splitting motor 61 rotates to drive the second splitting gear 62 to rotate, and through the meshing between the gears, the splitting assembly 1 is driven to rotate around the axis F.

[0037] As described above, since the light splitting component 1 (including the light splitter 11) rotates around the axis F, light effect diagrams of different axial angles of the picture are obtained, thereby achieving directional adjustment of the key area. For example, for aquatic organisms in the monitoring area, the light splitting component 1 (including the light splitter 11) can be rotated around the axis F to obtain pictures of the biological surface at different axis F angles, thereby increasing the accurate recognition of the biological epidermis. When this embodiment is combined with the relative rotation of the aforementioned rotating polarizer 212 and the static polarizer 211 and the rotation of the light splitting component 1 around the center line O, more pictures of different angles, different areas, and different transmittances of the target object can be obtained, avoiding the influence of impurities and / or stray light, which is conducive to finally obtaining a clear image with good imaging effect, thereby achieving the expected monitoring effect.

[0038] See also Fig.11 and Fig.12 For the present application, the rotation along the center line O and the rotation along the axis F as well as the rotation between the rotating polarizer 212 and the static polarizer 211 can be realized in the same camera. As described above, the combination of the rotation of the center line O and the rotation between the rotating polarizer 212 and the static polarizer 211 is briefly described as follows. An implementation method of the rotation along the center line O and the rotation along the axis F is as follows: the inner ring of the bearing is connected to the light splitting component and the first light splitting driving component 5 through a bearing, and the outer ring of the bearing is connected to the second light splitting driving component 6. In this way, because the inner ring and the outer ring can rotate relative to each other, when the first light splitting driving component 5 drives the inner ring, it can drive the light splitting component to realize the rotation of the center line O. When the second light splitting driving component 6 drives the bearing and the light splitting component 1 as a whole, the rotation along the axis F is realized.

[0039] See also Figure 1 , Figure 3 , Figure 5 and Figure 8 The light splitting component 1 includes a light splitter, which is inclined in the horizontal direction and splits the incident light into two mutually perpendicular light beams. Figure 1 As shown, the incident light L is split into a first light L1 and a second light L2 which are perpendicular to each other. The beam splitter can be assembled in any manner and is not limited to the embodiments described below.

[0040] As described above, the light is divided into two perpendicular paths by the beam splitter. On the one hand, under the premise of avoiding the influence of impurities and / or stray light and achieving good imaging effect, the structure of the beam splitter component 1 is simple, so that the structure of the camera is also simple and small in size. The simple structure can make the field of view of the lens component 213 relatively large and the shooting range larger. Because there are too many paths, the camera structure will be complicated. In the case of a complicated structure, the lens 2131 of the lens component 213 will inevitably be far away from the window glass 40, so that the field of view is small and the shooting range is small (the monitoring area is small). On the other hand, after the light is divided into two perpendicular paths, in the subsequent software algorithm analysis, there is no need to convert the image, etc., and the algorithm is simpler. However, the more paths there are, the more complicated the algorithm will be.

[0041] See also Figure 1 and Figure 5 , the angle between the beam splitter and the horizontal plane is a, 30 degrees ≤ a ≤ 60 degrees, for example, 30 degrees, 33 degrees, 35 degrees, 38 degrees, 40 degrees, 42 degrees, 43 degrees, 45 degrees, 48 ​​degrees, 50 degrees 52 degrees, 53 degrees, 55 degrees, 58 degrees or 60 degrees. For the beam splitter component that can be driven by the second beam splitter driving component to rotate around the axis F, the beam splitter can be rotated to a value within the range of 30 degrees to 60 degrees; for the beam splitter component that cannot be driven by the second beam splitter driving component to rotate around the axis F, when installed, the beam splitter component is installed at a value within the range of 30 degrees to 60 degrees.

[0042] In the above angle, when a=45 degrees, on the one hand, under the premise of avoiding the influence of impurities and / or stray light to achieve good imaging effect, the structure of the light splitting component 1 is simple, so that the structure of the camera is also simple and the volume is small. Moreover, after the light is split into two perpendicular paths, in the subsequent software algorithm analysis, it is not necessary to convert (or correct) the image, and the algorithm is simpler. In the above embodiment, a=45 degrees is also conducive to splitting the incident light into Figure 1 Regarding the horizontal and vertical light rays shown, technicians can understand that in some embodiments, the two light rays L1 and L2 can be perpendicular, but the light ray L1 is not transmitted in the vertical direction, and the light ray L2 is not transmitted in the horizontal direction. In this case, the image needs to be converted (or corrected) through an algorithm.

[0043] See also Figures 3 to 5 as well as Figures 8 to 10The camera includes a mounting bracket 4, and the mounting bracket 4 includes a spectroscopic mounting wall 41 and two polarizing film mounting walls 42. The spectroscopic mounting wall 41 is inclined relative to the horizontal plane, and the spectroscopic film is installed. More specifically, the spectroscopic mounting wall 41 is provided with a fixing slot 411. The spectroscopic film is fixed in the fixing slot 411, and this fixing can be achieved by dispensing glue or the like. Among the two polarizing film mounting walls 42, one of the polarizing film mounting walls 42 is located in the horizontal direction, and the other of the polarizing film mounting walls 42 is located in the vertical direction, and the two polarizing film mounting walls 42 are respectively provided with a through light inlet 421, and the static polarizing film 211 is fixed in the light inlet 421.

[0044] The rotating polarizer 212 is assembled to the polarizer mounting wall 42 in a rotational manner. Figure 3 and Figure 7 Each set of the imaging assembly includes a fixing member 214, a rotating frame 215 and a supporting bearing 216. The structure of the fixing member 214 is not limited, and it is assembled to the mounting bracket 4 by means of screws or the like. In other embodiments, the fixing member 214 can also be integrally formed with the mounting bracket 4. The inner ring of the supporting bearing 216 is fixed to the rotating frame 215 by interference fit, and the outer ring of the supporting bearing 216 is fixed to the fixing member 214. In this way, after the rotating polarizer 212 is fixed to the rotating frame 215, the polarizer driving assembly drives the rotating frame 215 to rotate, and the rotating frame 215 rotates synchronously with the rotating polarizer 212. The lens assembly 213 is assembled to the polarizer mounting wall 42. In the embodiment of the present application, the lens assembly 213 includes a lens 2131, a sheet metal 2132 and a circuit board 2133. The lens 2131 of the lens assembly 213 is fixed to the sheet metal 2132, and then fixed to the polarizer mounting wall 42 by the sheet metal 2132. After the assembly is completed, the center line of the lens assembly 213 , the center line of the rotating polarizer 212 , and the center line of the static polarizer 211 coincide with each other.

[0045] As set up above, since the beam splitter is installed on the beam splitter mounting wall 41, the two static polarizers 211 are respectively installed on the corresponding polarizer mounting walls 42, the rotating polarizer 212 is rotatably installed on the polarizer mounting wall 42, and the lens assembly 213 is installed on the polarizer mounting wall, and the two polarizer mounting walls 42 are perpendicular to each other, combined with the positional relationship between the static polarizer 211, the rotating polarizer 212 and the lens assembly 213, it can ensure that the assembly between the aforementioned components is simple, more stable after assembly and more stable light transmission, and can ensure installation accuracy, and it is easier to coincide with the center line of the lens assembly 213, the center line of the rotating polarizer 212 and the center line of the static polarizer 211, and ultimately ensure the imaging effect.

[0046] See also Figure 3 , Figure 4 and Figure 7 , the camera includes a mounting bracket 4, and all the static polarizers 211 are assembled on the mounting bracket 4. Please refer to the above for how to assemble, which will not be repeated. Each set of the imaging components includes a fixing part 214 and a rotating frame 215, and the fixing part 214 is assembled on the mounting bracket 4. The rotating frame 215 is rotatably assembled with the fixing part 214; and the rotating frame 215 is fixed with the rotating polarizer 212, and the rotating frame 215 is driven by the corresponding polarizer driving assembly. The rotating frame 215 is provided with a through hole 2151; the lens assembly 213 includes a lens 2131, and the lens 2131 extends into the through hole 2151, opposite to the rotating polarizer 212.

[0047] As set up above, since the lens 2131 extends into the through hole 2151 and is opposite to the rotating polarizer 212, the lens 2131 is closer to the rotating polarizer 212 or the spectroscopic component 1, the field of view of the lens 2131 is larger, and the shooting range (monitoring area) is larger, so that pictures of the target object 20 at different angles, different areas, and different transmittances can be obtained, avoiding the influence of impurities and / or stray light, which is conducive to finally obtaining a clear image with good imaging effect, achieving the expected monitoring effect, such as target state detection, quantity statistics, high-definition display, etc.

[0048] See also Figure 4 , Figures 8 to 10 The mounting bracket 4 includes fixing parts 424 evenly distributed along the circumference of the light inlet 421. The circumferential distribution is not limited. In the embodiment of the present application, the fixing parts 424 are distributed at the four corners of the square. The fixing member 214 is fixedly connected to the fixing parts 424. The fixing parts 424 are not limited to studs, as long as they can achieve the fixing of the two.

[0049] As set up above, since the fixing part 414 is evenly distributed in the circumference of the light entrance 421, the fixing member 214 is fixedly connected to the fixing part 424, so that the fixing member 214 is firmly fixed, and the fixing member 214 is rotatably assembled with the rotating frame 215, ensuring that the rotating polarizer 212 rotates around the center line and the rotation is stable, and finally ensuring that the relative position angle between the rotating polarizer 212 and the static polarizer 211 is not easy to change, which is beneficial to ensuring a good imaging effect.

[0050] See also Figure 5 , Figure 7 , Fig. 9 and Fig.10The camera includes a mounting bracket, the mounting bracket 4 includes a light inlet 421 penetrating the mounting bracket 4, a supporting boss 422 is provided in the light inlet 421 and surrounds the light inlet 421, and the supporting boss 422 is provided with a boss glue dispensing groove 423. The static polarizer 211 is bonded to the supporting boss 422 by the glue in the boss glue dispensing groove 423.

[0051] As configured above, since the boss glue dispensing groove 423 can accommodate glue dispensing, it can ensure that the static polarizer 211 is firmly assembled to the light entrance 421 of the mounting bracket 4 and is not easy to fall off.

[0052] See also Figure 7 The imaging assembly includes a rotating frame 215. The rotating frame 215 includes a through hole 2151. A supporting step 2152 is formed in the through hole 2151 and surrounds the through hole 2151. A step glue dispensing groove 2153 is provided in the supporting step 2152. The rotating polarizer 212 is bonded to the supporting step 2152 by the glue in the step glue dispensing groove 2153.

[0053] As configured above, since the step glue dispensing groove 2153 can accommodate glue dispensing, it can ensure that the rotating polarizer 212 is firmly assembled on the rotating frame 215 and is not easy to fall off.

[0054] See also Figure 3 , Figure 4 , Figure 5 and Figure 7 Each set of the imaging assembly includes a fixing member 214 and a rotating frame 215; the rotating frame 215 is rotatably assembled with the fixing member 214; and the rotating frame 215 is fixed with the rotating polarizer 212; the rotating frame 215 is meshed with the polarizer driving assembly. Specifically, the first polarizer driving assembly 31 includes a motor 311. The motor 311 includes a motor shaft 312, and the motor shaft 312 is sleeved with a gear. A circle of teeth is provided on the rotating frame 215, and the gear 313 is meshed with the teeth on the rotating frame 215 to realize the meshing of the rotating frame 315 with the polarizer driving assembly.

[0055] As set up as above, by engaging the rotating frame 215 with the polarizing plate driving assembly, it is convenient to drive the rotating frame 215 to rotate, and further, it is more convenient to drive the rotating polarizing plate 212 to rotate. For example, compared with the use of synchronous belt drive, it is not easy to slip, and the optical path is not easy to shake, thereby ensuring the imaging effect.

[0056] See also Figure 3 , Figure 4 , Figure 5 and Figure 7The polarizer driving assembly is located at the side of the imaging assembly, that is, the first polarizer driving assembly 31 is located at the side of the first imaging assembly 21, and the second polarizer driving assembly 32 is located at the side of the second imaging assembly 22. The polarizer driving assembly includes a motor 311; the motor shaft 312 of the motor 311 is parallel to the center line of the rotating polarizer 212.

[0057] As set up as above, since the polarizer driving assembly is located on the side of the imaging assembly, and the motor shaft 312 is parallel to the center line of the rotating polarizer 212, when the polarizer driving assembly engages with the rotating frame 215 and drives the rotating frame 215, it is not easy to get stuck, and the rotating frame 215 rotates more smoothly. Furthermore, the polarizer driving assembly is located on the side of the imaging assembly, which also facilitates the assembly of the polarizer driving assembly and the imaging assembly on the mounting bracket 4 respectively.

[0058] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A camera, characterized in that: The camera comprises a light splitting component, at least two sets of imaging components and at least two sets of polarizing plate driving components; The light splitting component splits the incident light into multiple light paths; Each imaging assembly images a line of light, and includes a static polarizer, a rotating polarizer and a lens assembly; the lens assembly includes a lens; the static polarizer is parallel to the rotating polarizer and is perpendicular to the corresponding light from the beam splitting assembly; the rotating polarizer is located between the static polarizer and the lens of the lens assembly; Each set of the polarizer driving assembly drives the rotating polarizer of a set of the imaging assembly to rotate relative to the static polarizer around the center line of the rotating polarizer; The camera comprises a mounting bracket and a first beam splitter driving assembly, the beam splitter assembly comprises a beam splitter and a vertical rotation shaft, the vertical rotation shaft is perpendicular to the beam splitter, and the beam splitter assembly is rotatably assembled to the mounting bracket via the vertical rotation shaft; The first light splitting driving component drives the light splitting component to rotate around the center line of the light splitting component, and the center line of the light splitting component is perpendicular to the light splitter; The camera comprises the mounting bracket and a second beam splitter driving assembly, the beam splitter assembly comprises a beam splitter, the beam splitter assembly comprises a radial rotating shaft arranged along the radial direction of the beam splitter, and the beam splitter assembly is rotatably connected to the mounting bracket via the radial rotating shaft; The second light splitting driving component drives the light splitting component to rotate around an axis, and the axis coincides with the diameter of the light splitter; One set of the imaging components is perpendicular to the other set of the imaging components.

2. The camera according to claim 1, characterized in that The light splitting component comprises a light splitter, and the angle between the light splitter and the horizontal plane is a, 30 degrees≤a≤60 degrees.

3. The camera according to claim 1, characterized in that The light splitting component comprises a light splitter, which is inclined in the horizontal direction and splits the incident light into two mutually perpendicular light rays.

4. The camera according to claim 3, characterized in that The camera comprises a mounting bracket, and the mounting bracket comprises a light splitting mounting wall and two polarizing plate mounting walls, wherein: The beam splitter installation wall is inclined relative to the horizontal plane, and is installed with the beam splitter; One of the polarizer mounting walls is located in the horizontal direction, and the other polarizer mounting wall is located in the vertical direction, and the two polarizer mounting walls are respectively provided with a through light entrance, and the static polarizer is fixed in the light entrance; The rotating polarizer is rotatably assembled on the polarizer mounting wall, and the lens assembly is assembled on the polarizer mounting wall; and the center line of the lens assembly, the center line of the rotating polarizer and the center line of the static polarizer coincide with each other.

5. The camera according to claim 1, characterized in that The camera comprises a mounting bracket, and all static polarizers are assembled on the mounting bracket; Each set of the imaging assembly comprises a fixing part and a rotating frame, wherein the fixing part is assembled to the mounting bracket or is formed integrally with the mounting bracket; the rotating frame is rotatably assembled with the fixing part; the rotating frame is fixed with the rotating polarizer, and the rotating frame is driven by the corresponding polarizer driving assembly; The rotating frame is provided with a through hole; the lens of the lens assembly extends into the through hole and is opposite to the rotating polarizer.

6. The camera according to claim 5, characterized in that The mounting bracket comprises a light entrance and fixing parts evenly distributed along the circumference of the light entrance. The static polarizer is fixed in the light entrance, and the fixing member is fixedly connected to the fixing parts.

7. The camera according to claim 1, characterized in that The camera comprises a mounting bracket, the mounting bracket comprises a light inlet penetrating the mounting bracket, a supporting boss is arranged in the light inlet and surrounds the light inlet, the supporting boss is provided with a boss glue dispensing groove, and the static polarizer is bonded to the supporting boss through the glue in the boss glue dispensing groove; Alternatively, the imaging assembly includes a rotating frame, the rotating frame includes a through hole; a supporting step is provided in the through hole and surrounds the through hole, and the supporting step is provided with a step glue dispensing groove; the rotating polarizer is bonded to the supporting step by the glue in the step glue dispensing groove.

8. The camera according to claim 1, characterized in that Each set of the imaging assembly comprises a fixed part and a rotating frame; the rotating frame is rotatably assembled with the fixed part; the rotating frame is fixed with the rotating polarizer; the rotating frame is engaged with the polarizer driving assembly; The polarizing plate driving assembly is located at the side of the imaging assembly and comprises a motor; the motor shaft of the motor is parallel to the center line of the rotating polarizing plate.

Images