Lens and ultraviolet camera

Abstract

The application relates to a lens and an ultraviolet camera, a first shell is provided with a first mounting channel, a side wall of the first shell is provided with an adjusting hole in communication with the first mounting channel; at least part of a first optical assembly is arranged in the first mounting channel; at least part of an adjusting piece is arranged in the adjusting hole, the adjusting piece can reciprocate along the axial direction of the adjusting hole and is used for abutting against the first optical assembly to drive the first optical assembly to move along the direction parallel to the axis of the adjusting piece. Compared with the prior art, the first optical assembly and the first shell in the lens are designed in a split type, the first optical assembly is driven to move by the abutting of the adjusting piece, the optical axis of the first optical assembly is adjusted, and therefore the detection accuracy of the ultraviolet camera is ensured.

Description

Technical Field

[0001] This application relates to the field of camera technology, and in particular to a lens and an ultraviolet camera. Background Technology

[0002] Ultraviolet (UV) cameras, with their ability to capture ultraviolet radiation invisible to the naked eye, have become key equipment for early warning of potential hazards and fault location in power grids. A UV camera consists of a lens, body, and UV photosensitive element. Among them, the lens, as the receiving window of ultraviolet signals, directly determines the imaging quality and detection accuracy of the UV camera. To adapt to the needs of different detection scenarios, the lens of a UV camera is usually designed to be interchangeable. By changing the lens with different focal lengths and apertures, the UV camera can be adapted to different application scenarios.

[0003] In traditional technology, the camera body and lens are usually connected by a threaded bayonet for quick assembly and disassembly. However, due to assembly errors, the optical axis of the lens and the geometric center of the image sensor are difficult to align after each lens replacement, resulting in optical axis misalignment and affecting the detection accuracy of the ultraviolet camera. Utility Model Content

[0004] Therefore, it is necessary to provide a lens and an ultraviolet camera to address the problem that the optical axis of the lens and the geometric center of the photosensitive element are difficult to coincide in traditional technology, which leads to optical axis offset and thus affects the detection accuracy of ultraviolet cameras.

[0005] The technical solution is as follows:

[0006] One embodiment provides a lens, including:

[0007] A first housing, wherein the first housing has a first mounting channel and an adjustment hole connected to the first mounting channel is provided on the side wall of the first housing;

[0008] A first optical component, at least a portion of which is disposed within the first mounting channel; and

[0009] An adjusting member, at least a portion of which is disposed within the adjusting hole, is capable of reciprocating along the axial direction of the adjusting hole and is used to abut against the first optical component, thereby driving the first optical component to move in a direction parallel to the axis of the adjusting member.

[0010] In the aforementioned lens, the first housing is used to connect to the body of the ultraviolet camera. An adjustment member located in the adjustment hole can reciprocate along the axis of the adjustment hole, thereby abutting against the first optical component in the first mounting channel. Under the abutting action of the adjustment member, the first optical component moves within the first mounting channel to adjust the optical axis of the first optical component, making the optical axis coincide with the geometric center of the photosensitive element in the body. Compared with conventional technology, the first optical component and the first housing in the aforementioned lens are designed separately. The first optical component is moved by the abutting action of the adjustment member, thereby adjusting the optical axis of the first optical component and ensuring the detection accuracy of the ultraviolet camera.

[0011] In one embodiment, the adjusting member includes an adjusting rod and an adjusting head, one end of the adjusting rod passing through the adjusting hole and used to abut against the first optical component, and the other end of the adjusting rod being connected to the adjusting head.

[0012] In one embodiment, the outer wall of the adjusting rod is provided with a first threaded portion, and the wall of the adjusting hole is provided with a first threaded engagement portion, wherein the first threaded portion is screwed into the first threaded engagement portion.

[0013] In one embodiment, at least two adjustment holes are provided and are spaced apart circumferentially along the first mounting channel, and at least two adjustment members are provided and are provided in correspondence with the adjustment holes.

[0014] In one embodiment, the first optical component includes a second housing and a lens module, at least a portion of the second housing is disposed within the first mounting channel, the second housing has a second mounting channel, and the lens module is disposed within the second mounting channel.

[0015] In one embodiment, the first optical component further includes a gasket that is fitted over the second housing and abuts against the inner wall of the first mounting channel.

[0016] In one embodiment, the outer wall of the second housing has a mounting groove, and at least a portion of the gasket is disposed within the mounting groove.

[0017] In one embodiment, the first mounting channel has a first port and a second port opposite to each other. The first port is for the first optical component to pass through. The lens also includes a limiting ring and a second optical component. The limiting ring is disposed at the second port. The second optical component is disposed within the first mounting channel and located between the first optical component and the limiting ring. The limiting ring abuts against the side of the second optical component away from the first optical component.

[0018] In one embodiment, the outer ring surface of the limiting ring is provided with a second threaded portion, and the inner wall of the second port is provided with a second threaded mating portion, and the second threaded portion is screwed into the second threaded mating portion.

[0019] Another embodiment provides an ultraviolet camera, the ultraviolet camera including a body and a lens as described above, the lens being connected to the body.

[0020] In the aforementioned ultraviolet camera, the first housing is used to connect to the camera body. An adjustment member located in the adjustment hole can reciprocate along the axis of the adjustment hole, thereby abutting the first optical component in the first mounting channel. Under the abutting action of the adjustment member, the first optical component moves within the first mounting channel to adjust the optical axis of the first optical component, making the optical axis coincide with the geometric center of the photosensitive element in the camera body. Compared with conventional technology, the first optical component and the first housing in the aforementioned lens are designed separately. The first optical component is moved by the abutting action of the adjustment member, thereby adjusting the optical axis of the first optical component and ensuring the detection accuracy of the ultraviolet camera. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the external structure of the lens in one embodiment of this application.

[0023] Figure 2 This is a cross-sectional view of a lens in one embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the lens explosion in one embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the structure of the adjusting member in one embodiment of this application.

[0026] Attached image annotations:

[0027] 100, First housing; 110, First mounting channel; 111, First port; 112, Second port; 113, Stepped portion; 120, Adjustment hole; 200, First optical component; 210, Second housing; 211, Mounting groove; 212, Second mounting channel; 220, Lens module; 230, Washer; 300, Adjusting component; 310, Adjusting rod; 320, Adjusting head; 321, Adjustment groove; 400, Reference surface; 500, Limiting ring; 600, Second optical component; X1, First optical axis; X2, Second optical axis. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] Please see Figures 1 to 3 One embodiment of this application provides a lens, including a first housing 100, a first optical component 200, and an adjustment member 300. The first housing 100 has a first mounting channel 110, and the side wall of the first housing 100 has an adjustment hole 120 communicating with the first mounting channel 110. At least a portion of the first optical component 200 is disposed in the first mounting channel 110. At least a portion of the adjustment member 300 is disposed in the adjustment hole 120. The adjustment member 300 is capable of reciprocating along the axial direction of the adjustment hole 120 and is used to abut against the first optical component 200 to drive the first optical component 200 to move in a direction parallel to the axis of the adjustment member 300.

[0035] In the aforementioned lens, the first housing 100 is used to connect to the body of the ultraviolet camera. The adjustment member 300, located within the adjustment hole 120, can reciprocate along the axial direction of the adjustment hole 120, thereby abutting against the first optical component 200 within the first mounting channel 110. Under the abutting action of the adjustment member 300, the first optical component 200 moves within the first mounting channel 110 to adjust the optical axis of the first optical component 200, making the optical axis coincide with the geometric center of the photosensitive element within the body. Compared with conventional technology, the first optical component 200 and the first housing 100 in the aforementioned lens are designed separately. The first optical component 200 is moved by the abutting action of the adjustment member 300, thereby adjusting the optical axis of the first optical component 200 and ensuring the detection accuracy of the ultraviolet camera.

[0036] For explanation, the body of the ultraviolet camera has a mounting side, the photosensitive element is located on the mounting side of the body, and the first housing 100 is connected to the mounting side of the body, such that the light-emitting side of the first optical component 200 is positioned facing the photosensitive element.

[0037] Furthermore, taking the photosensitive surface of the photosensitive element as the reference surface 400, the optical axis of the first optical component 200 should be perpendicular to the reference surface 400, and the optical axis of the first optical component 200 should coincide with the geometric center of the photosensitive element.

[0038] Furthermore, the geometric center of the photosensitive element is the intersection of the diagonals of the photosensitive surface. The geometric center of the photosensitive element must be completely aligned with the optical axis of the lens. If there is any offset, it will cause image offset. In this application, the adjustment member 300 is used to abut against the first optical component 200 and drive the first optical component 200 to move, thereby adjusting the optical axis of the first optical component 200 to be aligned with the geometric center of the photosensitive element.

[0039] In one embodiment, the outer peripheral surface of the first housing 100 is provided with threads, and the first housing 100 is fixed to the lens interface of the camera body by means of threads and thread-locking adhesive.

[0040] Optionally, the photosensitive element can be a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide-Semiconductor), etc., without specific limitations here.

[0041] Optionally, the first optical component 200 can be a lens component or a filter component, etc., without specific limitations.

[0042] exist Figures 1 to 3 In the embodiment shown, the first optical component 200 is a lens assembly.

[0043] For further explanation, please refer to Figures 1 to 2 The axis of the adjustment hole 120 is perpendicular to the optical axis of the first optical component 200, and the axis of the adjustment hole 120 is parallel to the photosensitive surface. The adjustment member 300 can reciprocate along the axis of the adjustment hole 120 and change its own position, thereby abutting against the side wall of the first optical component 200, so that the first optical component 200 can move in a direction parallel to the photosensitive surface, thereby adjusting the optical axis of the first optical component 200 to overlap with the geometric center of the photosensitive element.

[0044] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment, the adjustment member 300 includes an adjustment rod 310 and an adjustment head 320. One end of the adjustment rod 310 passes through the adjustment hole 120 and is used to abut against the first optical component 200. The other end of the adjustment rod 310 is connected to the adjustment head 320.

[0045] The adjusting rod 310 passes through the adjusting hole 120 and abuts against the first optical component 200, so that the first optical component 200 can move in a direction parallel to the photosensitive surface of the photosensitive element, thereby achieving the purpose of adjusting the position of the optical axis of the first optical component 200.

[0046] Optionally, the adjustment hole 120 can be a blind hole or a through hole, as long as one end of the adjustment hole 120 can be connected to the first mounting channel 110 so that the adjustment rod 310 located in the adjustment hole 120 can produce a resisting effect on the first optical component 200 in the first mounting channel 110. No specific limitation is made here.

[0047] exist Figures 1 to 3 In the embodiment shown, the adjustment hole 120 is a through hole. One end of the adjustment hole 120 is connected to the outside, and the other end of the adjustment hole 120 is connected to the first mounting channel 110. The adjustment rod 310 passes through the adjustment hole 120. In use, the operator adjusts the position of the adjustment head 320, thereby driving the adjustment rod 310 to move along the axial direction of the adjustment hole 120 and abut against the first optical component 200, thereby adjusting the position of the first optical component 200.

[0048] In one embodiment, the outer wall of the adjusting rod 310 is provided with a first threaded portion, and the wall of the adjusting hole 120 is provided with a first threaded mating portion, and the first threaded portion is screwed into the first threaded mating portion.

[0049] Since the first threaded part on the outer wall of the adjusting rod 310 is screwed into the first threaded part on the inner wall of the adjusting hole 120, the position of the first adjusting rod 310 can be precisely adjusted by rotating the adjusting rod 310, which is low in cost and reliable in adjustment process.

[0050] Furthermore, the first threaded portion on the outer wall of the adjusting rod 310 is an external thread, and the first threaded mating portion on the wall of the adjusting hole 120 is an internal thread.

[0051] Please see Figure 4 In one embodiment, the adjusting head 320 has an adjusting groove 321 for assembling with the rotating component.

[0052] The rotating component is assembled with the adjusting groove 321 of the adjusting head 320. When the rotating component rotates, it can drive the adjusting head 320 and the adjusting rod 310 to rotate. Under the screw engagement of the first thread and the second thread, the position of the adjusting member 300 is adjusted, thereby adjusting the position of the optical axis of the first optical component 200.

[0053] Furthermore, the shape of the adjusting groove 321 can be straight or cross-shaped, and correspondingly, the rotating part can be a straight screwdriver, a cross screwdriver, etc., which will not be elaborated here.

[0054] Please see Figures 1 to 3 In one embodiment, at least two adjustment holes 120 are provided and are spaced apart circumferentially along the first mounting channel 110, and at least two adjustment members 300 are provided and are provided in a one-to-one correspondence with the adjustment holes 120.

[0055] At least two adjustment holes 120 are circumferentially spaced on the side wall of the first housing 100 along the first mounting channel 110, and adjustment members 300 are correspondingly arranged in the adjustment holes 120. This arrangement allows the position of at least two adjustment members 300 to be adjusted, thereby enabling multi-angle contact with the first optical component 200 and achieving multi-angle adjustment of the position of the first optical component 200, improving adjustment flexibility, and further ensuring that the optical axis of the first optical component 200 overlaps with the geometric center of the photosensitive surface of the photosensitive element.

[0056] Furthermore, in Figures 1 to 3 In the embodiment shown, there are three adjustment holes 120. The line connecting two adjacent adjustment holes 120 and the axis of the first mounting channel 110 forms a 120° angle. There are three adjustment members 300, which are correspondingly arranged in the adjustment holes 120 to adjust the position of the first optical component 200 from multiple angles.

[0057] Understandably, in other embodiments, the adjustment hole 120 may also be provided in two or more forms, which can be flexibly set according to the specific needs of the current application scenario, and no specific limitation is made here.

[0058] Please see Figures 1 to 3In one embodiment, the first optical component 200 includes a second housing 210 and a lens module 220. At least a portion of the second housing 210 is disposed within a first mounting channel 110, and the second housing 210 has a second mounting channel 212. The lens module 220 is disposed within the second mounting channel 212.

[0059] The lens module 220 is disposed in the second mounting channel 212 of the second housing 210 to protect the lens module 220. At least a portion of the second housing 210 is disposed in the first mounting channel 110. The adjusting member 300 can abut against the second housing 210 to adjust the position of the second housing 210 in the first mounting channel 110.

[0060] Furthermore, at least a portion of the lens module 220 constitutes a combined structure with alternating positive and negative lenses.

[0061] Furthermore, the lens module 220 in this embodiment includes a first lens, a second lens, a third lens, and a fourth lens. These lenses are sequentially arranged from the light-inlet side to the light-outlet side of the lens module 220. The first lens is a positive lens, the second lens is a positive lens, the third lens is a negative lens, and the fourth lens is a positive lens. The second, third, and fourth lenses form an alternating positive and negative arrangement. This alternating arrangement of positive and negative lenses can compensate for chromatic aberration and spherical aberration, improving the imaging quality in the 260nm-270nm wavelength band.

[0062] In some embodiments, such as Figures 1 to 3 As shown, one end of the second housing 210 passes through the first mounting channel 110, so that a portion of the second housing 210 is located within the first mounting channel 110; in other embodiments, the second housing 210 may also be completely located within the first mounting channel 110, which is not specifically limited here.

[0063] Furthermore, the second housing 210 is coaxially arranged with the first housing 100, that is, the axis of the second mounting channel 212 coincides with the axis of the first mounting channel 110.

[0064] Please see Figures 2 to 3 In one embodiment, the first optical component 200 further includes a washer 230, which is sleeved on the outside of the second housing 210 and abuts against the inner wall of the first mounting channel 110.

[0065] The installation error between the second housing 210 and the inner wall of the first mounting channel 110 is eliminated by abutting the washer 230 against the outer wall of the second housing 210 and the inner wall of the first mounting channel 110, which has a low implementation cost. In addition, the damping provided by the washer 230 can also prevent the second housing 210 from shaking in the first mounting channel 110, further improving the imaging stability of the lens.

[0066] Furthermore, the washer 230 is an O-ring rubber ring. The inner ring of the O-ring rubber ring is fitted onto the outer wall of the second housing 210, and the outer ring of the O-ring rubber ring abuts against the inner wall of the first mounting channel 110. The O-ring rubber ring deforms to compensate for the fitting and installation error between the second housing 210 and the inner wall of the first mounting channel 110 and to improve the imaging stability of the lens.

[0067] In one embodiment, the second housing 210 is also connected to the first housing 100 by a thread. During the screwing process of the second housing 210 and the first housing 100, the setting of the washer 230 can also play a certain guiding role in the screwing of the second housing 210, so that the optical axes of the first optical component 200 and the second optical component 600 naturally coincide.

[0068] Please see Figures 2 to 3 In one embodiment, the outer wall of the second housing 210 is provided with a mounting groove 211, and at least a portion of the gasket 230 is disposed in the mounting groove 211.

[0069] The mounting groove 211 can limit the gasket 230 to a certain extent, preventing the gasket 230 from moving on the outer wall of the second housing 210.

[0070] Furthermore, the portion of the washer 230 protruding from the mounting groove 211 can abut against the inner wall of the first mounting channel 110.

[0071] Please see Figures 2 to 3 In one embodiment, at least two mounting slots 211 are provided and spaced apart along the axial direction of the second mounting channel 212, and at least two gaskets 230 are provided and are provided in a one-to-one correspondence with the mounting slots 211, thereby further improving the imaging stability of the lens.

[0072] Please see Figures 2 to 3 In one embodiment, the first mounting channel 110 has a first port 111 and a second port 112 opposite to each other. The first port 111 is for the first optical component 200 to pass through. The lens also includes a limiting ring 500 and a second optical component 600. The limiting ring 500 is disposed at the second port 112. The second optical component 600 is disposed in the first mounting channel 110 and located between the first optical component 200 and the limiting ring 500. The limiting ring 500 abuts against the side of the second optical component 600 away from the first optical component 200.

[0073] The second port 112 is oriented towards the camera body, and the limiting ring 500 can limit the second optical component 600 to prevent it from detaching from the first mounting channel 110, thereby improving the reliability of the lens.

[0074] Further, please refer to Figures 2 to 3The second optical component 600 includes a filter module located between the light-emitting side of the first optical component 200 and the photosensitive element. The filter module can filter the light that finally enters the sensing element to avoid color shift and ensure that the light forms a clear and accurate image on the sensing element.

[0075] Furthermore, please refer to Figure 1 The first optical axis X1 of the filter module should coincide with the second optical axis X2 of the lens module 220, and both the first optical axis X1 and the second optical axis X2 should coincide with the optical axis of the photosensitive element.

[0076] For illustrative purposes, the optical axis of the photosensitive element here refers to the axis that passes through the geometric center of the photosensitive surface of the photosensitive element and is perpendicular to the photosensitive surface.

[0077] In one embodiment, the filter module includes multiple filters with a maximum gap of 0.5 mm between them, and the multiple filters are integrated within the first mounting channel 110 to form a single filter module.

[0078] Furthermore, the filter module is cylindrical, and its outer diameter is adapted to the inner wall of the first mounting channel 110. The first housing 100 provides rigid support for the filter module, preventing the filter module from deforming due to external forces and affecting its own optical path, thereby improving the stability of the filter.

[0079] Furthermore, the filter module is fitted with a clearance fit to the inner wall of the first mounting channel 110. During the assembly of the filter module, the filter module can be finely adjusted within the first mounting channel 110 to facilitate the calibration of the optical axis of the filter module. The clearance fit provides adjustment margin for the calibration of the optical axis of the filter module, thereby solving the problem that the optical axis offset of the filter module caused by the interference fit cannot be corrected.

[0080] Please see Figures 2 to 3 In one embodiment, one side of the limiting ring 500 faces the second optical component 600, and the other side of the limiting ring 500 faces the body. Light passing through the second optical component 600 can pass through the middle of the limiting ring 500 to enter the photosensitive element of the body.

[0081] Please see Figures 1 to 3 In one embodiment, the first optical component 200 passes through the first port 111 and is at least partially located within the first mounting channel 110, so that the first optical component 200 can be detached from the first housing 100 by entering and exiting the first port 111.

[0082] Further, please refer to Figures 2 to 3The first installation channel 110 is provided with a step portion 113, which is positioned facing the second end. The step surface of the step portion 113 is used to abut against the second optical component 600, so that the second optical component 600 abuts against the step surface of the step portion 113 and the limiting ring 500.

[0083] Please see Figures 2 to 3 In one embodiment, the first housing 100 is used to connect to the body and fix relative to the photosensitive surface of the photosensitive element, so that the relative position between the second optical component 600 and the body is fixed. When the first optical component 200 needs to be replaced, the second housing 210 only needs to be removed from the first port 111 of the first mounting channel 110, and the first optical component 200 to be replaced needs to be inserted into the first mounting channel 110 from the first port 111. Since the position of the first housing 100 is not adjusted during this process, the relative position between the second optical component 600 and the body is fixed. Therefore, there is no need to adjust the optical axis of the second optical component 600; only the optical axis of the first optical component 200 needs to be adjusted to coincide with that of the second optical component 600. Furthermore, the position of the first optical component 200 can be finely adjusted by the abutment of the adjusting member 300 against the first optical component 200, eliminating the need for large-scale calibration after each replacement of the first optical component 200 and improving the replacement efficiency of the first optical component 200. By replacing the first optical component 200, the lens can achieve efficient detection in different scenarios while ensuring consistent image quality.

[0084] Furthermore, by means of the above method, the position of the optical axis of the lens module 220 can be adjusted so that the position of the optical axis of the lens module 220 coincides with the position of the optical axis of the filter module, thereby ensuring image quality.

[0085] In one embodiment, the outer ring surface of the limiting ring 500 is provided with a second threaded portion, and the inner wall of the second port 112 is provided with a second threaded mating portion, and the second threaded portion and the second threaded mating portion are screwed together.

[0086] The installation of the limiting ring 500 is achieved by screwing the second threaded portion of the outer ring surface of the limiting ring 500 with the second threaded mating portion of the inner wall of the second port 112 of the first mounting channel 110. This method has low implementation cost and reliable limiting effect on the second optical component 600.

[0087] Furthermore, the second threaded part is an external thread provided on the outer ring surface of the limiting ring 500, and the second threaded mating part is an internal thread provided on the second port 112 of the first mounting channel 110. The external thread and the internal thread are screwed together to realize the installation of the limiting ring 500.

[0088] Another embodiment provides an ultraviolet camera, which includes a body and a lens as described above, the lens being connected to the body.

[0089] In the aforementioned ultraviolet camera, the first housing 100 is used to connect to the camera body. The adjustment member 300, located within the adjustment hole 120, can reciprocate along the axial direction of the adjustment hole 120, thereby abutting against the first optical component 200 within the first mounting channel 110. Under the abutting action of the adjustment member 300, the first optical component 200 moves within the first mounting channel 110, thereby adjusting the optical axis of the first optical component 200 so that the optical axis coincides with the geometric center of the photosensitive element within the camera body. Compared with conventional technology, the first optical component 200 and the first housing 100 in the aforementioned lens are designed separately. The first optical component 200 is moved by the abutting action of the adjustment member 300, thereby adjusting the optical axis of the first optical component 200, thus ensuring the detection accuracy of the ultraviolet camera.

[0090] Furthermore, the ultraviolet camera also includes a photosensitive element housed inside the camera body and located on the light-emitting side of the lens.

[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A lens, characterized in that, include: A first housing, wherein the first housing has a first mounting channel and an adjustment hole connected to the first mounting channel is provided on the side wall of the first housing; A first optical component, at least a portion of which is disposed within the first mounting channel; as well as An adjusting member, at least a portion of which is disposed within the adjusting hole, is capable of reciprocating along the axial direction of the adjusting hole and is used to abut against the first optical component, thereby driving the first optical component to move in a direction parallel to the axis of the adjusting member.

2. The lens according to claim 1, characterized in that, The adjusting component includes an adjusting rod and an adjusting head. One end of the adjusting rod passes through the adjusting hole and is used to abut against the first optical component. The other end of the adjusting rod is connected to the adjusting head.

3. The lens according to claim 2, characterized in that, The outer wall of the adjusting rod is provided with a first threaded portion, and the wall of the adjusting hole is provided with a first threaded mating portion, and the first threaded portion is screwed into the first threaded mating portion.

4. The lens according to claim 1, characterized in that, The adjustment holes are provided in at least two and are spaced apart circumferentially along the first installation channel. The adjustment members are provided in at least two and are arranged one-to-one with the adjustment holes.

5. The lens according to claim 1, characterized in that, The first optical component includes a second housing and a lens module. At least a portion of the second housing is disposed within the first mounting channel. The second housing has a second mounting channel, and the lens module is disposed within the second mounting channel.

6. The lens according to claim 5, characterized in that, The first optical component also includes a gasket, which is fitted over the second housing and abuts against the inner wall of the first mounting channel.

7. The lens according to claim 6, characterized in that, The outer wall of the second housing has a mounting groove, and at least a portion of the gasket is disposed in the mounting groove.

8. The lens according to claim 1, characterized in that, The first mounting channel has a first port and a second port opposite to each other. The first port is used for the first optical component to pass through. The lens also includes a limiting ring and a second optical component. The limiting ring is disposed at the second port. The second optical component is disposed in the first mounting channel and located between the first optical component and the limiting ring. The limiting ring abuts against the side of the second optical component away from the first optical component.

9. The lens according to claim 8, characterized in that, The outer ring surface of the limiting ring is provided with a second threaded portion, and the inner wall of the second port is provided with a second threaded mating portion, and the second threaded portion is screwed into the second threaded mating portion.

10. An ultraviolet camera, characterized in that, The ultraviolet camera includes a body and a lens as described in any one of claims 1-9, wherein the lens is connected to the body.

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