Infrared thermal imaging camera with autofocus

Abstract

Infrared thermal imaging camera with autofocus, characterized in that it comprises an infrared main control module (4) and a front housing assembly (1), wherein the front housing assembly (1) comprises an infrared lens (11) and an electrical focusing assembly (12), and wherein the electrical focusing assembly (12) is distributed on the rear of the infrared lens (11); and wherein the electrical focusing assembly (12) is communicatively connected to the infrared main control module (4).

Description

Technical area

[0001] The present utility model relates to the technical field of infrared thermal imaging cameras, in particular an infrared thermal imaging camera with autofocus. Background technology

[0002] With continuous advances in science and technology, infrared thermal imaging cameras are increasingly finding applications in defense, industry, and medicine. Thermal imaging cameras are optoelectronic products, with the imaging component being a crucial part of the infrared thermal imaging camera. Depending on the operating environment or the distance to the observed target, the user must focus the imaging component to obtain a clear image. Most infrared thermal imaging cameras currently available on the market use a manually rotating focus wheel to adjust the distance between the optics and the infrared sensor. A few models, however, rely on manually adjusting the position of the infrared sensor to achieve focus.

[0003] Manual focusing on thermal imaging cameras has inherent disadvantages: it requires operation with both hands, which limits its usability in certain scenarios; manual focusing is time-consuming, which can lead to the loss of fast-moving targets; and manual focusing relies on the visual assessment of image sharpness, and accurate detection of target sharpness can be affected by differences in visual acuity or hand tremors.

[0004] Therefore, the fast, precise and convenient focusing of infrared thermal imaging cameras presents a challenge that must be considered and solved by experts in this field. Content of the utility model

[0005] With regard to the existing technical problems in the prior art, the present utility model provides an infrared thermal imaging camera with autofocus.

[0006] To solve the above technical problem, the present utility model uses the following technical solution: an infrared thermal imaging camera with autofocus, comprising an infrared main control module and a front housing assembly, wherein the front housing assembly comprises an infrared lens and an electrical focusing assembly, and wherein the electrical focusing assembly is distributed along the rear of the infrared lens; and wherein the electrical focusing assembly is communicatively connected to the infrared main control module;

[0007] The operator sends a focus command, and the infrared main control module receives this command while simultaneously acquiring external image information. It then quantifies and processes the differences within this image information. Based on these processing results, the infrared main control module simultaneously controls the electrical focusing assembly to perform the focusing operation.

[0008] The present utility model has the following advantages: during the operating process, the operator sends a focusing command, and the infrared main control module receives this focusing command and simultaneously acquires external image information. It then quantifies and processes the differences within this image information. Simultaneously, based on these processing results, the infrared main control module controls the electrical focusing assembly to perform focusing operations.

[0009] The present utility model is characterized by a simple construction and rational design, and implements an automatic drive for the focusing assembly. This significantly increases the convenience and precision of focusing the infrared thermal imaging camera, thus improving the user experience with the product.

[0010] Based on the above technical solution, the present utility model can be improved as follows.

[0011] Furthermore, the electrical focusing assembly comprises an infrared detector and an electronic control element, wherein the electronic control element is installed at the rear of the infrared lens and is communicatively connected to the main infrared control module; and wherein the infrared detector is installed on the electronic control element, and wherein the electronic control element is used to drive the infrared detector to move back and forth along the front-back direction.

[0012] The advantageous effect of applying the aforementioned additional solution is that, during the focusing process, the electronic control element drives the infrared detector to move back and forth along the front-to-back axis, thereby changing the distance between the infrared detector and the infrared lens to achieve focus. This allows for adaptation to various operating scenarios and simplifies use.

[0013] Furthermore, the electronic control element includes a driver that is installed on the rear of the infrared lens, the driver being connected to the infrared detector and communicatively linked to the main infrared control module.

[0014] The advantageous effect of applying the aforementioned additional solution is that, during the focusing process, the driver causes the infrared detector to move back and forth along the front-to-back axis, thereby changing the distance between the infrared detector and the infrared lens to achieve focus. This allows for adaptation to various operating scenarios and simplifies use.

[0015] Furthermore, the driver comprises an electric motor and a leadscrew assembly, wherein the electric motor is installed at the rear of the infrared lens, the drive end of the electric motor extending along the front-back direction and communicatively connected to the main infrared control module; and wherein the leadscrew assembly extends along the front-back direction, and one end of the leadscrew assembly is rigidly connected to the drive end of the electric motor; and wherein the infrared detector is rigidly connected to a slide in the leadscrew assembly.

[0016] The advantageous effect of applying the aforementioned additional solution is that, during the focusing process, the electric motor drives the lead screw assembly. The lead screw in the assembly converts its own rotation into a linear movement of the carriage mounted on it. This movement causes the carriage to move the infrared detector back and forth along the front-to-back axis, thereby changing the distance between the infrared detector and the infrared lens to achieve focus. This allows for adaptation to various operating scenarios and simplifies use.

[0017] Furthermore, the electronic control element also includes a mounting seat that is permanently installed on the rear of the infrared lens, with the driver being installed on the mounting seat.

[0018] The advantageous effect of applying the above-mentioned further solution consists of a simple structure and a rational design, whereby the electric motor is mounted using the mounting seat, thus achieving convenient installation.

[0019] Furthermore, the electrical focusing assembly further comprises a movable bracket, wherein a projection on the movable bracket is connected to the electronic control element; and wherein the infrared detector is installed on the movable bracket.

[0020] The advantageous effect of using the aforementioned solution lies in its simple construction and rational design. The infrared detector is mounted using a movable bracket, allowing for convenient installation. Simultaneously, the driver actuates the movable bracket, enabling adjustment of the distance between the infrared detector and the infrared lens to achieve focus. This allows for adaptation to various operating scenarios and simplifies use.

[0021] Furthermore, a protruding block is arranged on the movable bracket, with a limit detector installed on the mounting seat, which is communicatively connected to the infrared main control module in order to detect the position of the protruding block and thus limit the movable bracket.

[0022] The advantageous effect of applying the above-mentioned further solution consists of a simple setup and a rational design, and during the focusing process the limiting detector detects the real-time position of the protruding block in order to limit the movement of the infrared detector and avoid excessive movement.

[0023] Furthermore, a guide rod assembly is installed on the mounting seat, and a bearing assembly is installed on the movable bracket, which interacts with the guide rod assembly.

[0024] The advantageous effect of applying the above-mentioned further solution consists of a simple setup and a rational design. During the focusing process, the bearing assembly on the movable bracket interacts with the guide rod assembly on the mounting seat to provide guidance, thereby ensuring more stable movement of both the movable bracket and the infrared detector.

[0025] Furthermore, a main housing is included, wherein the front and rear ends of the main housing are each open; and wherein the infrared lens is installed at the front opening of the main housing, while the infrared main control module is installed at the rear opening of the main housing, and wherein the electrical focusing assembly is distributed within the main housing; and wherein a key assembly and a display assembly are still installed on the main housing, and wherein the key assembly and the display assembly are each communicatively connected to the main infrared control module.

[0026] The advantageous effect of applying the aforementioned further solution lies in a simple structure and a rational design, whereby the respective assemblies are integrated together in one piece using the main housing, which enables easy use; Furthermore, the keypad assembly on the main housing facilitates the operation of the entire device, while the display assembly on the main housing enables convenient display of the operating data.

[0027] The present utility model further relates to an autofocus method for an infrared thermal imaging camera, which is implemented using the aforementioned infrared thermal imaging camera with autofocus and comprises the following specific steps: S1: The operator sends a focusing command, and the infrared main control module receives this focusing command and simultaneously captures external image information; S2: The infrared main control module quantifies and processes the differences within this image information and, based on these processing results, controls the electrical focusing assembly to perform focusing operations.

[0028] The advantageous effect of applying the aforementioned further solution is that the present utility model continues to provide an autofocus method for an infrared thermal imaging camera, which is characterized by a simple structure and a rational design and implements an automatic drive of the focusing assembly. This significantly increases the convenience and precision of focusing the infrared thermal imaging camera and thus improves the user experience with the product. Illustration of the attached drawings Fig. Figure 1 shows an overall assembly view of the present utility model; Fig. Figure 2 shows a schematic diagram of the internal structure of the present utility model; Fig. Figure 3 shows an assembly view of an infrared lens and an electric focusing assembly according to the present utility model; Fig. Figure 4 shows a partial exploded view of an infrared lens and an electric focusing assembly according to the present utility model; Fig. Figure 5 shows a flowchart of an autofocus procedure according to the present utility model.

[0029] The components represented by reference numbers in the drawings are listed as follows: 1 Front housing assembly 11 Infrared lens 12 Electrical focusing assembly 121 Mounting seat 122 Electric motor 123 Electric motor processing circuit 124 Guide rod 125 Movable bracket 126 warehouses 127 Protruding block 128 Infrared detector 129 lead 2 Main cases 3 Key assembly 4 Infrared main control module 5 Display assembly 6 Power supply battery Specific embodiments

[0030] In conjunction with the accompanying drawings in the embodiment of the present application, the technical solutions in the embodiment of the present application are explained clearly and completely below. Obviously, the embodiments explained do not represent all embodiments, but only a subset of them. All other embodiments that a person skilled in the art in this field could obtain from the embodiments in the present application without any creative work should be considered to be covered by the scope of protection of the present application.

[0031] In the explanatory notes to this application, the terms "the first" and "the second" are used only to explain the objective and cannot be understood as indicating or implying relative importance or as implicitly referring to the number of required technical features. Therefore, the features defined by "the first" and "the second" may explicitly or implicitly include one or more of the features. In the explanatory notes to this application, "several" refers to two or more than two, unless otherwise specified.

[0032] The explanatory notes to this application should further clarify that the terms "arranged," "installed," "coupled," and "connected" should be understood in a broader sense in the absence of clear rules and definitions. For example, it could be a fixed connection as well as a detachable connection, or an integrated connection; it could be a mechanical connection or an electrical connection; it could be a direct connection or an indirect connection via a medium; it could also be a connection between the interiors of two elements. The average person skilled in the art in this field can understand the specific meanings of the aforementioned terms in this technology based on the specific situations they arise.

[0033] In the description of this application, spatial relationship terms such as "below," "under," "lower," "above," "upper," etc., may be used to describe the relationship between an element or feature and other elements or features, as shown in the drawings. It is understood that spatial relationship terms encompass not only the orientations shown in the drawings but also different orientations of devices in use and operation. For example, if a device is upside down in the drawings, an element or feature described as "below" or "under" another element will be oriented such that it is "above" that other element or feature. Thus, the exemplary terms "below" and "under" can encompass both upward and downward orientations. Furthermore, the device may also have alternative orientations (e.g.,rotated by 90 degrees or other orientations), and the spatial descriptions used here should be interpreted accordingly.

[0034] In the description of this application, the term "for example" is used to mean "as an example, illustration, or demonstration." Each embodiment described herein as "for example" is not necessarily to be interpreted as being more preferred or advantageous than other embodiments. The following description is provided to enable a person skilled in the art to realize and use the present utility model. Details are set forth in the following description for explanatory purposes. It is understood that a person skilled in the art will recognize that the present utility model can also be realized without these particular details. In other embodiments, known structures and methods are not described in detail in order to avoid making the description of the present utility model difficult to understand with unnecessary details.Therefore, the present utility model should not be limited to the embodiments shown, but should be in accordance with the broadest scope that corresponds to the principles and features disclosed herein. Example 1

[0035] As in Fig. As shown in Figures 1 to 4, the present embodiment provides an infrared thermal imaging camera with autofocus, comprising an infrared main control module 4 and a front housing assembly 1, wherein the front housing assembly 1 comprises an infrared lens 11 and an electrical focusing assembly 12, and wherein the electrical focusing assembly 12 is distributed on the rear side of the infrared lens 11; and wherein the electrical focusing assembly 12 is communicatively connected to the infrared main control module 4; The operator sends a focusing command, and the infrared main control module 4 receives this focusing command and simultaneously acquires external image information. It then quantifies and processes the differences within this image information. Simultaneously, based on these processing results, the infrared main control module 4 controls the electric focusing assembly 12 to perform focusing operations.

[0036] During the operating process, the operator sends a focusing command, and the infrared main control module 4 receives this focusing command and simultaneously acquires external image information. It then quantifies and processes the differences within this image information. Simultaneously, based on these processing results, the infrared main control module 4 controls the electric focusing assembly 12 to perform focusing operations.

[0037] Preferably, in the present embodiment, the infrared lens 11 adopts a cylindrical structure as a whole as a preferred configuration. This utilizes existing technology, and its specific structure and function are not explained in detail here.

[0038] Furthermore, the infrared main control module 4 utilizes existing technology, and its specific structure and operation are not explained in detail here.

[0039] Preferably, the present embodiment further comprises a power supply battery 6 which is connected to the infrared main control module 4 via a line and supplies power to various components.

[0040] Furthermore, the aforementioned power supply battery 6 preferably takes the form of a storage battery of existing technology, which must be replaced regularly to ensure the normal operation of the entire device.

[0041] The present embodiment is characterized by a simple structure and rational design, and incorporates an automatic drive for the focusing assembly. This significantly increases the convenience and precision of focusing the infrared thermal imaging camera, thus improving the user experience with the product. Example 2

[0042] Based on embodiment 1, the electrical focusing assembly 12 in the present embodiment comprises an infrared detector 128 and an electronic control element, wherein the electronic control element is installed on the rear side of the infrared lens 11 and is communicatively connected to the main infrared control module 4; and wherein the infrared detector 128 is installed on the rear side of the electronic control element and is connected to the electronic control element, and wherein the electronic control element is used to drive the infrared detector 128 to move back and forth along the front-back direction.

[0043] During the focusing process, the electronic control element drives the infrared detector 128 to move back and forth along the front-to-back direction, thereby changing the distance between the infrared detector 128 and the infrared lens 11 to achieve focus. This allows adaptation to different operating scenarios and facilitates use.

[0044] Preferably, in the present embodiment, the infrared detector 128 is equipped with an infrared detector circuit to ensure the normal operation of the infrared detector 128. Example 3

[0045] Based on embodiment 2, the electronic control element in the present embodiment comprises a driver installed on the rear of the infrared lens 11, wherein the driver is connected to the infrared detector 128 and is communicatively connected to the infrared main control module 4.

[0046] During the focusing process, the driver causes the infrared detector 128 to move back and forth along the front-to-back direction, thereby changing the distance between the infrared detector 128 and the infrared lens 11 to achieve focus. This allows adaptation to different operating scenarios and facilitates use. Example 4

[0047] Based on embodiment 3, the driver in the present embodiment comprises an electric motor 122 and a leadscrew assembly, wherein the electric motor 122 is installed at the rear of the infrared lens 11, the drive end of the electric motor extending along the front-to-back direction and communicatively connected to the infrared main control module 4; and wherein the leadscrew assembly is installed at the rear of the electric motor and extending along the front-to-back direction, and wherein one end of the leadscrew assembly is rigidly connected to the drive end of the electric motor 122; and wherein the infrared detector 128 is rigidly connected to a slide in the leadscrew assembly.

[0048] During the focusing process, the electric motor 122 drives the lead screw assembly, whereby the lead screw in the lead screw assembly converts its own rotation into a linear movement of the slide mounted on it via threads. This causes the slide to move the infrared detector 128 back and forth along the front-to-back direction, thereby changing the distance between the infrared detector 128 and the infrared lens 11 to achieve focus. This allows adaptation to different operating scenarios and facilitates use.

[0049] Alternatively, the aforementioned driver can use a miniature cylinder. The telescopic end of the miniature cylinder extends along the front-to-back direction and is rigidly connected to the infrared detector 128, which is communicatively linked to the infrared main control module 4. During the focusing process, the infrared main control module 4 controls the extension and retraction of the miniature cylinder. The miniature cylinder extends and retracts, causing the infrared detector 128 to move back and forth along the front-to-back direction, thus changing the distance between the infrared detector 128 and the infrared lens 11 to achieve focus. This allows for adaptation to various operating scenarios and simplifies use. Example 5

[0050] Based on any one of the embodiments 3 to 4, the electronic control element in the present embodiment further comprises a mounting seat 121 which is fixedly installed on the rear of the infrared lens 11, with the driver being installed on the mounting seat 121.

[0051] This solution is characterized by a simple structure and a rational design, whereby the electric motor 122 is mounted using the mounting seat, thus achieving convenient installation.

[0052] Preferably, in the present embodiment, the infrared lens 11 adopts a cylindrical structure as a preferred configuration, wherein the rear end of the mounting seat 121 is open, while the front end of the mounting seat 121 can be either closed or open.

[0053] Alternatively, the mounting seat 121 can assume a structure with a polygonal cross-section, tailored to specific requirements. Example 6

[0054] Based on embodiment 5, the electrical focusing assembly 12 in the present embodiment further comprises a movable holder 125, wherein a projection 129 on the movable holder 125 is connected to the electronic control element; and wherein the infrared detector 128 is installed on the movable holder 125.

[0055] This solution is characterized by its simple construction and rational design. The infrared detector 128 is mounted using the movable bracket 125, enabling convenient installation. Simultaneously, the movable bracket 125 is actuated by the driver, allowing adjustment of the distance between the infrared detector 128 and the infrared lens 11 for focusing. This allows adaptation to various operating scenarios and facilitates use.

[0056] Preferably, in the present embodiment, the shape of the aforementioned movable bracket 125 is adapted to the shape of the mounting seat 121. It can assume a circular block structure or a block structure with a polygonal cross-section.

[0057] Preferably, in the present embodiment, the above-mentioned projection 129 assumes a cylindrical structure.

[0058] Alternatively, the aforementioned projection 129 can also assume other suitable geometric forms, for example a block-like structure. Example 7

[0059] Based on embodiment 6, in the present embodiment a protruding block 127 is further arranged on the movable bracket 125, wherein a limit detector is installed on the mounting seat 121, which is communicatively connected to the infrared main control module 4 in order to detect the position of the protruding block 127 and thus limit the movable bracket 125.

[0060] This solution is characterized by a simple structure and a rational design, and during the focusing process the limiting detector detects the real-time position of the protruding block 127 in order to limit the movement of the infrared detector 128 and avoid excessive movement.

[0061] Preferably, in the present embodiment, the above-mentioned protruding block 127 assumes a rectangular block structure.

[0062] Additionally, the limit detector uses two grid sensors or two Hall sensors, each positioned at both ends of the movement path of the movable bracket 125, to limit the end positions of the movement of the movable bracket 125.

[0063] Preferably, in the present embodiment, an electric motor processing circuit 123 is permanently installed on the mounting seat 121, which is connected via a line to the electric motor 122 and the infrared main control module 4.

[0064] In addition, the above-mentioned limit detector, which uses a grid sensor or a Hall sensor, is also arranged on the electric motor processing circuit123. Example 8

[0065] Based on any one of the embodiments 6 to 7, a guide rod assembly is installed on the mounting seat 121 in the present embodiment, wherein a bearing assembly is installed on the movable support 125, which interacts with the guide rod assembly.

[0066] This solution is characterized by a simple structure and a rational design, and during the focusing process the bearing assembly on the movable bracket 125 works together with the guide rod assembly on the mounting seat 121 to provide guidance, thereby ensuring a more stable movement of both the movable bracket 125 and the infrared detector 128.

[0067] Preferably, in the present embodiment, the guide rod assembly comprises at least one guide rod 124 which is fixedly installed on the mounting seat 121 and extends along its front-to-back direction; the bearing assembly comprises at least one bearing 126, wherein each bearing 126 is fixedly installed on the movable support 125 and is slidably mounted on the guide rod 124.

[0068] In addition, the guide rods 124 are preferably provided in a number of 2, while the bearings 126 are preferably provided in a number of 2, wherein the two bearings 126 each correspond one to one with one of the guide rods 124 and slide with it.

[0069] Alternatively, guide tubes can be used instead of the aforementioned bearings. Example 9

[0070] Based on the above respective embodiments, the present embodiment further comprises a main housing 2, wherein the front and rear ends of the main housing 2 are each open; and wherein the infrared lens 11 is installed at the front opening of the main housing 2, while the infrared main control module 4 is installed at the rear opening of the main housing 2, and wherein the electrical focusing assembly 12 is distributed within the main housing 2; and wherein a key assembly 3 and a display assembly 5 are further installed on the main housing 2, and wherein the key assembly 3 and the display assembly 5 are each communicatively connected to the infrared main control module 4.

[0071] This solution is characterized by a simple structure and a rational design, whereby the respective assemblies are integrated together in one piece using the main housing 2, which enables easy use; Furthermore, the key assembly 3 on the main housing 2 facilitates the operation of the entire device, while the display assembly 5 on the main housing 2 enables a convenient display of the operating data.

[0072] Preferably, in the present embodiment, the above-mentioned main housing 2 assumes a cylindrical housing, giving it an aesthetically pleasing overall appearance.

[0073] Preferably, in the present embodiment, the key assembly 3 comprises several keys. These keys are each mounted in several through-holes on the top of the main housing 2 and are each communicatively connected to the infrared main control module 4.

[0074] Preferably, in the present embodiment, the display assembly 5 comprises an eyepiece assembly and a screen. The eyepiece assembly is installed at the open rear end of the main housing 2, while the screen is installed at the corresponding rear section of the main housing 2. Example 10

[0075] Based on the above respective embodiments, as in Fig. As shown in Figure 5, the present embodiment further provides an autofocus method for an infrared thermal imaging camera, which is implemented using the above-mentioned autofocus infrared thermal imaging camera and comprises the following specific steps: S1: The operator sends a focusing command, and the infrared main control module 4 receives this focusing command and simultaneously acquires external image information; S2: the infrared main control module 4 quantifies and processes the differences within this image information and, based on these processing results, controls the electrical focusing assembly 12 to perform focusing operations.

[0076] The present embodiment further provides an autofocus method for an infrared thermal imaging camera, characterized by a simple structure and rational design, and implements an automatic drive of the focusing assembly. This significantly increases the convenience and precision of focusing the infrared thermal imaging camera and thus improves the user experience with the product.

[0077] The present utility model provides an infrared thermal imaging camera with autofocus and an autofocus method for it, wherein the specific steps of the autofocus are as follows: S1: The operator sends a focusing command, and the infrared main control module 4 receives this focusing command and simultaneously acquires external image information; S2: the infrared main control module 4 quantifies and processes the differences within this image information and, based on these processing results, controls the electrical focusing assembly 12 to perform focusing operations.

[0078] During this process, the infrared main control module 4 quantifies and processes the sharpness of the infrared image using the "grayscale gradient method". The processed results are fed back to the infrared main control module 4, which then controls the electrical focusing assembly 12 to perform focusing operations on the infrared detector.

[0079] The infrared master control module 4 initiates a "coarse focusing strategy" and controls the electric focusing assembly 12 to move the infrared detector in 0.02 mm increments to an area where the target appears clear. This process takes less than 0.3 seconds. Once the image is in the clear area, the infrared master control module 4 executes a "fine focusing strategy" and moves the infrared detector in 0.002 mm increments to the precise position where the target appears sharpest. This process takes less than 0.2 seconds. At this point, the infrared master control module 4 signals that focusing is complete, causing the electric focusing assembly 12 to stop operating.

[0080] This completes the one-button autofocus process, with the entire focusing process taking place within 0.5 seconds. The lower end of the main housing 2 still contains a power supply battery 6, which powers the infrared main control module 4.

[0081] The present utility model provides an infrared thermal imaging camera with autofocus and an autofocus method for it, which offer the following advantageous effects: The infrared thermal imaging camera with electric focus according to the present utility model solves the problems of existing infrared thermal imaging cameras regarding inconvenience of manual focusing, insufficient accuracy, and slow response time. By employing software algorithms that integrate an evaluation of the target information and the automatically controlled focusing assembly, the infrared thermal imaging camera according to the present utility model significantly improves the convenience and accuracy of focusing, thereby enhancing the user experience with the product.

[0082] To overcome the problems of existing infrared thermal imaging cameras regarding inconvenience during manual focusing, insufficient accuracy, and slow response time, the present utility model provides an infrared thermal imaging camera with autofocus and an autofocus method for this purpose. The infrared thermal imaging camera analyzes the image information of the target, then automatically triggers the movement of the electric motor, drives the focusing assembly to move along the optical axis, and thus achieves the purpose of automatic focusing of the target. It thereby implements the function of a fast and precise one-button autofocus.

[0083] An infrared thermal imaging camera with autofocus and an autofocus method for it, provided by the present utility model, have the following advantages: 1. The infrared sensor is electrically controlled, and focusing is achieved by adjusting the position of the infrared detector; with different model types, only a lens change is required; 2. The compact design of the electric motor's drive module ensures miniaturization of the entire electric focusing module, guaranteeing the use of the electric focusing method in the infrared thermal imaging camera; 3. During the automatic focusing process, the entire focusing process is completed within 0.5 seconds, with a focus error of less than 0.01 mm, enabling fast and precise focusing; 4. The simple one-button operation allows even inexperienced users to focus quickly and accurately, which significantly increases the ease of use of the thermal imaging camera.

[0084] Although embodiments or examples of the present disclosure have been described with reference to the accompanying drawings, it should be clear that the foregoing embodiments or examples are merely illustrative. The scope of this utility model is not limited by these embodiments or examples, but is defined exclusively by the granted claims and their equivalents. Various elements within the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be carried out in a different order than that described here. In addition, various elements within the embodiments or examples may be combined in different ways.It is important to note that with the further development of technology, many of the elements described here can be replaced by equivalents that emerge after this revelation.

[0085] The present utility model relates to an infrared thermal imaging camera with autofocus, comprising an infrared main control module and a front housing assembly, wherein the front housing assembly includes an infrared lens and an electric focusing assembly, and wherein the electric focusing assembly is located at the rear of the infrared lens; the operator sends a focusing command, and the infrared main control module receives this focusing command and simultaneously acquires external image information, subsequently quantifying and processing the differences within this image information. Simultaneously, based on these processing results, the infrared main control module controls the electric focusing assembly to perform focusing operations. The advantages of the present utility model lie in its simple construction, rational design, and automatic drive of the focusing assembly.This significantly increases the convenience and precision of focusing the infrared thermal imaging camera, thus improving the user experience with the product.

Claims

[1] Infrared thermal imaging camera with autofocus, characterized by , that it comprises an infrared main control module (4) and a front housing assembly (1), wherein the front housing assembly (1) comprises an infrared lens (11) and an electrical focusing assembly (12), and wherein the electrical focusing assembly (12) is distributed on the rear of the infrared lens (11); and wherein the electrical focusing assembly (12) is communicatively connected to the infrared main control module (4). [2] Infrared thermal imaging camera with autofocus according to claim 1, characterized by, that the electrical focusing assembly (12) comprises an infrared detector (128) and an electronic control element, wherein the electronic control element is installed on the rear of the infrared lens (11) and is communicatively connected to the main infrared control module (4); and wherein the infrared detector (128) is installed on the electronic control element, and wherein the electronic control element is used to drive the infrared detector (128) to move back and forth along the front-back direction. [3] Infrared thermal imaging camera with autofocus according to claim 2, characterized by , that the electronic control element includes a driver which is installed on the rear of the infrared lens (11), the driver being connected to the infrared detector (128) and communicatively linked to the infrared main control module (4). [4] Infrared thermal imaging camera with autofocus according to claim 3, characterized by, that the driver comprises an electric motor (122) and a leadscrew assembly, wherein the electric motor (122) is installed at the rear of the infrared lens (11), the drive end of the electric motor extending along the front-back direction and communicatively connected to the infrared main control module (4); and wherein the leadscrew assembly extends along the front-back direction, and one end of the leadscrew assembly is rigidly connected to the drive end of the electric motor (122); and wherein the infrared detector (128) is rigidly connected to a slide in the leadscrew assembly. [5] Infrared thermal imaging camera with autofocus according to claim 3, characterized by , that the electronic control element further comprises a mounting seat (121) which is permanently installed on the rear of the infrared lens (11), with the driver being installed on the mounting seat (121). [6] Infrared thermal imaging camera with autofocus according to claim 5, characterized by , that the electrical focusing assembly (12) further comprises a movable support (125) wherein a projection (129) on the movable support (125) is connected to the electronic control element; and wherein the infrared detector (128) is installed on the movable support (125). [7] Infrared thermal imaging camera with autofocus according to claim 6, characterized by , that a protruding block (127) is further arranged on the movable bracket (125), wherein a limit detector is installed on the mounting seat (121) which is communicatively connected to the infrared main control module (4) in order to detect the position of the protruding block (127) and thus limit the movable bracket (125). [8] Infrared thermal imaging camera with autofocus according to claim 6, characterized by, that a guide rod assembly is installed on the mounting seat (121), wherein a bearing assembly is installed on the movable support (125) which interacts with the guide rod assembly. [9] Infrared thermal imaging camera with autofocus according to one of claims 1 to 8, characterized by , that it further comprises a main housing (2) wherein the front and rear ends of the main housing (2) are each open; and wherein the infrared lens (11) is installed at the front opening of the main housing (2), while the infrared main control module (4) is installed at the rear opening of the main housing (2), and wherein the electrical focusing assembly (12) is distributed within the main housing (2); and wherein a key assembly (3) and a display assembly (5) are further installed on the main housing (2), and wherein the key assembly (3) and the display assembly (5) are each communicatively connected to the infrared main control module (4).

Images