Miniature thermal imaging MIPI module

Abstract

This invention discloses a miniature thermal imaging MIPI module, comprising a first housing, a second housing, and a third housing arranged sequentially. Through a multi-layered housing structure and integrated adjustment components, this miniature thermal imaging MIPI module achieves focal length and aperture adjustment within a compact space. The aperture adjustment component utilizes a guide ring to drive a guide drive groove and a guide post to rotate. The guide post slides within the guide driven groove, thereby driving the light-shielding plate to adjust the circumferential adjustment to regulate the amount of light entering the device. The focal length adjustment component uses a flexible telescopic tube and a telescopic guide shaft to extend and retract between the first and second housings, changing the distance between the lens and the thermal imaging element to adjust the focal length. This design allows the module to maintain flexible optical adjustment capabilities while achieving miniaturization, solving the problem of fixed focal length and aperture in traditional thermal imaging modules for miniaturized applications. It improves imaging accuracy and applicability, making it suitable for space-constrained devices such as smartphones and drones.

Description

Technical Field

[0001] This utility model relates to the field of thermal imaging technology, specifically a miniature thermal imaging MIPI module. Background Technology

[0002] Thermal imaging technology is an advanced sensing technology that detects infrared radiation emitted from the surface of an object and converts it into a visible thermal image (temperature distribution map). This technology has unique advantages such as being non-contact, penetrating smoke, and unaffected by visible light illumination conditions, and has been widely used in various fields including industrial temperature measurement, security monitoring, fire rescue, medical diagnosis, and automotive driver assistance.

[0003] Traditional thermal imaging modules typically use USB, Ethernet, or other dedicated interfaces for data output. While these interface solutions are mature and reliable in specific situations, their inherent drawbacks, such as large size, high power consumption, and complex transmission protocols, limit the widespread adoption of thermal imaging technology in emerging application scenarios that are space-constrained, power-sensitive, and require high integration, such as consumer electronics and Internet of Things (IoT) devices like smartphones, tablets, drones, and augmented reality (AR) glasses.

[0004] In recent years, with the widespread adoption of the Mobile Industry Processor Interface (MIPI) standard, especially its Camera Serial Interface (MIPICSI-2) in mobile devices, its high bandwidth, low power consumption, low electromagnetic interference (EMI), and standardized protocol stack have made it an ideal choice for embedded vision systems. Therefore, the industry has begun exploring combining thermal imaging cores with the MIPI interface to create compact, low-power, and highly compatible thermal imaging MIPI modules. These modules are designed for integration into portable devices such as smartphones, tablets, drones, and augmented reality (AR) glasses, which are highly sensitive to space and power consumption.

[0005] However, to adapt to the aforementioned application scenarios, thermal imaging MIPI modules must be miniaturized, which introduces new technical challenges: the limited physical space of the module severely restricts the adjustment capabilities of its optical system. Specifically, within such a limited space, the mechanical structure for precisely adjusting the focal length by moving 114 lens groups is difficult to implement, resulting in inconsistent focusing accuracy after initial assembly and an inability to meet the zoom requirements of different application scenarios. Similarly, the aperture adjustment mechanism used to control the amount of light and depth of field is usually fixed due to insufficient installation space, preventing the module from optimizing imaging performance based on changes in ambient light and the target object.

[0006] Among the technologies related to thermal imaging MIPI modules, there is a lack of a solution that can achieve controllable focal length and aperture adjustment within the specific miniaturized structure of a thermal imaging MIPI module. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this invention aims to provide a technical solution for a miniature thermal imaging (MIPI) module that can solve the aforementioned problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A miniature thermal imaging MIPI module includes a first housing, a second housing, and a third housing arranged sequentially. A lens assembly is mounted on the upper end face of the first housing, an aperture adjustment assembly is mounted between the lens assembly and the first housing, a focus adjustment assembly is mounted between the first housing and the second housing, a thermal imaging element is mounted inside the second housing, a sealed first mounting chamber is formed between the lens assembly, the first housing and the second housing, and a sealed second mounting chamber is formed between the second housing and the third housing. The lens assembly includes a lens mounting base fixed to the upper end face of the first housing, a lens barrel rotatably mounted inside the lens mounting base, a lens element mounted at the upper end of the lens barrel, and a guide ring fixedly mounted at the lower end of the lens barrel. The aperture adjustment assembly includes a rotating adjustment rod and a light-shielding plate rotatably mounted on the first housing. A guide post is fixedly provided at the front end of the rotating adjustment rod. A guide drive groove is provided on the lower end face of the guide ring. The guide post slides in the guide drive groove. A guide follower groove is provided on the light-shielding plate. The guide post slides in the guide follower groove. The focal length adjustment assembly includes a flexible telescopic tube and a telescopic guide shaft. One end of the flexible telescopic tube is fixedly connected to the lower end face of the first housing, and the other end of the flexible telescopic tube is fixedly connected to the upper end face of the second housing. The first housing and the second housing are telescopically adjusted through the telescopic guide shaft.

[0009] As a further embodiment of this utility model: the upper end face of the first housing is provided with an L-shaped first limiting member and a second limiting member, the first limiting member and the second limiting member are enclosed to form a U-shaped structure, the ends of the first limiting member and the second limiting member are respectively formed with U-shaped limiting arms, adjacent U-shaped limiting arms are enclosed to form a limiting hole, and the lower end face of the rotating adjusting rod is formed with a rotating adjusting disc that rotates and engages within the limiting hole.

[0010] As a further embodiment of this utility model: a first guide limiting plate is installed on the upper end face of the first housing, the first guide limiting plate covers the first limiting member and the second limiting member, an arc-shaped first guide limiting groove is opened on the first guide limiting plate, and the guide post passes through the first guide limiting groove upward and slides within the first guide limiting groove.

[0011] As a further embodiment of this utility model: the upper end face of the rotating adjustment rod is formed with a positioning shaft, the light shield is provided with a shaft mounting hole sleeved on the positioning shaft, the light shield is rotated and adjusted with the positioning shaft as the rotation center, the light shield is provided with at least two pieces and the two light shields are symmetrical, the center of symmetry is located on the lens barrel axis.

[0012] As a further embodiment of this utility model: the upper end face of the first housing is also provided with a second guide limiting plate, the second guide limiting plate is covered above the light shield, the second guide limiting plate is provided with an arc-shaped second guide limiting groove, and the guide post passes through the second guide limiting groove upward and slides within the second guide limiting groove.

[0013] As a further embodiment of this utility model: the first housing has guide shaft mounting holes at its four corners, the telescopic guide shaft is rotatably connected to the guide shaft mounting holes, and the lower end of the telescopic guide shaft is provided with a threaded connection part; the second housing has screw mounting holes at its four corners.

[0014] As a further embodiment of this utility model: the flexible telescopic tube includes a plurality of mounting frames arranged in an equidistant array and a flexible connecting part installed between adjacent frames. The mounting frame is provided with a guide shaft insertion hole, and the telescopic guide shaft passes through the guide shaft insertion hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This novel miniature thermal imaging MIPI module achieves focal length and aperture adjustment within a compact space through a multi-layered housing structure and integrated adjustment components. The aperture adjustment component uses a guide ring to drive the guide drive groove and guide post to rotate, and the guide post slides within the guide driven groove, thereby driving the light shield to adjust circumferentially to regulate the amount of light entering. The focal length adjustment component uses a flexible telescopic tube and telescopic guide shaft to extend and retract between the first and second housings, changing the distance between the lens and the thermal imaging element to adjust the focal length. At the same time, the sealed first and second mounting chambers effectively protect the internal components from environmental interference. This design allows the module to maintain flexible optical adjustment capabilities while miniaturizing, solving the problem of fixed focal length and aperture in traditional thermal imaging modules for miniaturized applications, improving imaging accuracy and applicability, and making it suitable for space-constrained devices such as smartphones and drones. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is an exploded view of the lens assembly in this utility model; Figure 4This is a three-dimensional view of the guide ring structure in this utility model; Figure 5 This is another three-dimensional view of the guide ring in this utility model; Figure 6 This is an exploded view of the aperture adjustment component in this utility model; Figure 7 This is a three-dimensional view of the internal structure of the aperture adjustment component in this utility model; Figure 8 This is another three-dimensional view of the internal structure of the aperture adjustment component in this utility model; Figure 9 This is another three-dimensional view of the internal structure of the aperture adjustment component in this utility model; Figure 10 This is another three-dimensional view of the internal structure of the aperture adjustment component in this utility model; Figure 11 This is an exploded view of the second housing, the third housing, and the focus adjustment assembly in this utility model; Figure 12 This is a three-dimensional structural view of the flexible telescopic tube in this utility model; The reference numerals and names in the figure are as follows: First housing - 101, Second housing - 102, Third housing - 103, Lens assembly - 105, Aperture adjustment assembly - 106, Focus adjustment assembly - 107, Thermal imaging element - 108, First mounting chamber - 109, Second mounting chamber - 110, Lens mount - 111, Lens barrel - 112, Lens element - 114, Guide ring - 116, Rotating adjustment rod - 117, Light shield - 118, Guide post - 120, Guide drive groove - 122, Guide driven groove - 123, Flexible telescopic tube - 124, Extension Constricting guide shaft-125, first limiting component-127, second limiting component-128, U-shaped limiting arm-131, limiting hole-132, rotating adjustment disc-133, first guide limiting plate-134, first guide limiting groove-136, positioning rotating shaft-137, rotating shaft mounting hole-138, second guide limiting plate-141, second guide limiting groove-142, guide shaft mounting hole-144, threaded connection part-146, threaded mounting hole-147, mounting frame-148, flexible connection part-149, guide shaft insertion hole-150. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-12 A miniature thermal imaging MIPI module includes a first housing 101, a second housing 102 and a third housing 103 installed sequentially. A lens assembly 105 is mounted on the upper end face of the first housing 101. An aperture adjustment assembly 106 is mounted between the lens assembly 105 and the first housing 101. A focus adjustment assembly 107 is mounted between the first housing 101 and the second housing 102. A thermal imaging element 108 is mounted inside the second housing 102. A sealed first mounting chamber 109 is formed between the lens assembly 105, the first housing 101, and the second housing 102. A sealed second mounting chamber 110 is formed between the second housing 102 and the third housing 103. The lens assembly 105 includes a lens mounting base 111 fixed to the upper end face of the first housing 101. A lens barrel 112 is rotatably mounted inside the lens mounting base 111. A lens 114 is mounted on the upper end of the lens barrel 112. A guide ring 116 is fixedly mounted on the lower end of the lens barrel 112. like Figure 1 First, the focus adjustment assembly 107 integrated between the first and second housings 102, through the coordinated action of the flexible telescopic tube 124 and the telescopic guide shaft 125, allows the entire lens assembly 105 to make precise axial movements relative to the thermal imaging element 108, enabling the module to adjust the focus after initial assembly and improving the imaging effect; it gives the module the ability to zoom in different application scenarios, such as switching from wide-angle inspection to close-up observation in security monitoring, or focusing on targets at different distances in industrial inspection, improving the module's scene applicability and imaging quality; The aperture adjustment assembly 106 includes a rotating adjustment rod 117 and a light-shielding plate 118 rotatably mounted on the first housing 101. A guide post 120 is fixedly provided at the front end of the rotating adjustment rod 117. A guide drive groove 122 is provided on the lower end face of the guide ring 116. The guide post 120 slides in the guide drive groove 122. A guide follower groove 123 is provided on the light-shielding plate 118. The guide post 120 slides in the guide follower groove 123. The aperture adjustment assembly 106, through a clever lever and slot transmission (rotating adjustment rod 117, guide post 120, guide drive slot 122 and guide driven slot 123), converts the rotational motion of the lens barrel 112 into the circumferential adjustment of the light shield 118 within a limited space, thereby controlling the amount of light entering the module. This allows the module to adapt to environments with different light intensities (such as preventing overexposure in strong light and improving the signal-to-noise ratio in low light). It can also control the depth of field by changing the aperture size, meeting the depth of field requirements of certain specific applications, thereby optimizing the performance of thermal imaging. The focal length adjustment assembly 107 includes a flexible telescopic tube 124 and a telescopic guide shaft 125. One end of the flexible telescopic tube 124 is fixedly connected to the lower end face of the first housing 101, and the other end of the flexible telescopic tube 124 is fixedly connected to the upper end face of the second housing 102. The first housing 101 and the second housing 102 are telescopically adjusted through the telescopic guide shaft 125. The stacked design of the multi-layer housing (first, second, and third housings 103) is the basis for miniaturization. The sealed first and second mounting chambers 110 formed by these housings constitute a compartmentalized protection system: the first mounting chamber 109 seals the contamination-sensitive optical path (from lens 114 to thermal imaging element 108), effectively isolating dust and moisture and preventing performance degradation caused by contamination or fogging of lens 114; the second mounting chamber 110 provides a stable working environment for the internal circuitry, especially the thermal imaging element 108 and the MIPI interface, enhancing the module's mechanical strength and resistance to vibration and shock, making it particularly suitable for mobile scenarios such as drones and handheld devices. In addition, the flexible telescopic tube 124 in the focus adjustment assembly 107 not only plays a guiding and buffering role when the housing expands and contracts, but also acts as a dynamic seal to ensure that its sealing performance is not compromised when the volume of the first mounting chamber 109 changes, thereby maintaining the adjustment function while ensuring the long-term reliability of the core optical components. Ultimately, this module combines the low power consumption, high bandwidth, and easy integration advantages of the MIPI interface with the unique functions of thermal imaging technology, such as non-contact temperature measurement and smoke penetration. Furthermore, by solving the optical adjustment bottleneck caused by miniaturization, it becomes an ideal solution that can be seamlessly integrated into portable devices (such as smartphones, AR / VR glasses, tablets, and micro drones) with strict requirements on space and power consumption. In one embodiment, the thermal imaging element 108 includes a long-wave infrared thermal imager module, Lepton 3.5. The miniaturization, native MIPI CSI-2 interface, ultra-low power consumption, and high integration of the Lepton 3.5 make it an ideal thermal imaging element choice for realizing the miniature thermal imaging MIPI module. This novel miniature thermal imaging MIPI module achieves focal length and aperture adjustment within a compact space through a multi-layered housing structure and integrated adjustment components: the aperture adjustment component 106 uses a guide ring 116 to drive the guide drive groove 122 and guide post 120 to rotate, and the guide post 120 slides within the guide driven groove 123, thereby driving the light shield 118 to adjust the circumferential adjustment to regulate the amount of light entering; the focal length adjustment component 107 uses a flexible telescopic tube 124 and a telescopic guide shaft 125 to extend and retract between the first housing 101 and the second housing 102, changing the distance between the lens 114 and the thermal imaging element 108 to adjust the focal length; at the same time, the sealed first and second mounting chambers 110 effectively protect the internal components from environmental interference. This design allows the module to maintain flexible optical adjustment capabilities while being miniaturized, solving the problem of fixed focal length and aperture in traditional thermal imaging modules in miniaturized applications, improving imaging accuracy and applicability, and is suitable for space-constrained devices such as smartphones and drones.

[0019] In this embodiment of the present invention, the upper end face of the first housing 101 is provided with an L-shaped first limiting member 127 and a second limiting member 128. The first limiting member 127 and the second limiting member 128 are arranged to form a U-shaped structure. The ends of the first limiting member 127 and the second limiting member 128 are respectively formed with U-shaped limiting arms 131. Adjacent U-shaped limiting arms 131 are arranged to form a limiting hole 132. The lower end face of the rotating adjusting rod 117 is formed with a rotating adjusting disk 133 that rotates and engages within the limiting hole 132. like Figure 10 As shown, by providing a U-shaped structure formed by the L-shaped first limiting member 127 and the second limiting member 128 on the upper end surface of the first housing 101, and forming a U-shaped limiting arm 131 at its end to form a limiting hole 132, the rotating adjustment rod 117 is constrained to rotate within the limiting hole 132. The limiting hole 132 not only provides a stable and reliable rotation fulcrum for the rotating adjustment rod 117, but also the limiting hole 132 formed by the U-shaped limiting arm 131 has a certain elastic deformation capability, ensuring both the stability and smoothness of the transmission (the cooperation between the guide post 120 and the guide drive groove 122 and the guide driven groove 123) during aperture adjustment. Moreover, the overall U-shaped structure and the U-shaped limiting arm 131 together form a rigid support frame, which enhances the ability of the adjustment mechanism to resist external impacts and vibrations and improves the mechanical stability of the aperture adjustment assembly 106.

[0020] In this embodiment of the present invention, a first guide limiting plate 134 is installed on the upper end face of the first housing 101. The first guide limiting plate 134 covers the first limiting member 127 and the second limiting member 128. An arc-shaped first guide limiting groove 136 is opened on the first guide limiting plate 134. The guide post 120 passes through the first guide limiting groove 136 upward and slides within the first guide limiting groove 136. like Figure 9 As shown, by covering the upper end surfaces of the first limiting member 127 and the second limiting member 128 with a first guide limiting plate 134, and opening an arc-shaped first guide limiting groove 136 on the plate, the guide post 120 extending from the rotating adjusting rod 117 can slide in the arc-shaped groove after passing through upward. The first guide limiting groove 136 provides a two-dimensional constraint for the adjustment process of the light shield 118. By rotating the lens barrel 112, the guide ring 116 is driven to rotate. The rotation of the guide ring 116 causes the guide drive groove 122 to drive the guide post 120 to rotate in an arc. By sliding the guide post 120 in the guide driven groove 123, the light shield 118 is driven to rotate and adjust. At this time, the arc-shaped first guide limiting groove 136 limits and guides the movement trajectory of the guide post 120, making the arc-shaped movement path of the guide post 120 more stable. This not only reduces the possible offset and shaking of the guide post 120 and improves the stability of the position control of the light shield 118, but also evenly disperses the friction and potential stress during the operation, ensuring the smoothness of the adjustment action.

[0021] In this embodiment of the utility model, the upper end face of the rotating adjustment rod 117 is formed with a positioning rotating shaft 137, and the light shield 118 is provided with a rotating shaft mounting hole 138 sleeved on the positioning rotating shaft 137. The light shield 118 rotates and adjusts with the positioning rotating shaft 137 as the rotation center. The light shield 118 is provided with at least two pieces and the two light shield pieces 118 are centrally symmetrical, with the center of symmetry located on the axis of the lens barrel 112. like Figure 8 As shown, by forming a positioning shaft 137 on the upper end face of the rotating adjustment rod 117, and by sleeved the light-shielding plate 118 onto the positioning shaft 137 through the shaft mounting hole 138, a stable and unique rotation center is established for the movement of the light-shielding plate 118. At the same time, the arrangement of at least two light-shielding plates 118 with the center symmetrical about the axis A of the lens barrel 112 ensures that all light-shielding plates 118 can open and close synchronously and symmetrically around a common axis. The guide post 120 slides within the guide follower groove 123 to drive the light-blocking plate 118 to rotate. The centrally symmetrical layout ensures that the light-passing hole formed by the multiple light-blocking plates 118 can always maintain symmetry about the axis of the lens barrel 112, improving the accuracy and stability of aperture adjustment, effectively avoiding optical aberrations that may be caused by asymmetrical light blocking, and ensuring that the formed aperture hole coincides with the optical axis, thereby significantly improving the uniformity of light intake control and the consistency of imaging quality.

[0022] In this embodiment of the present invention, a second guide limiting plate 141 is also provided on the upper end face of the first housing 101. The second guide limiting plate 141 covers the top of the light shield 118. An arc-shaped second guide limiting groove 142 is provided on the second guide limiting plate 141. The guide post 120 passes through the second guide limiting groove 142 upward and slides within the second guide limiting groove 142. like Figure 7 As shown, by adding a second guide limiting plate 141 covering the light shield 118 on the upper end face of the first housing 101, and opening an arc-shaped second guide limiting groove 142 on the plate, the top of the guide post 120 is further embedded in and slides along the second guide limiting groove 142 after it passes through the guide driven groove 123 of the light shield 118 upwards, thus forming a second guidance and limiting of the guide post 120 from top to bottom; The second guide limiting groove 142 works in conjunction with the first guide limiting groove 136 below to constrain the movement trajectory of the guide post 120 within the preset arc path, thereby enhancing the rigidity and stability of the entire transmission chain and effectively suppressing possible warping or unexpected displacement of the guide post 120 during movement.

[0023] In this embodiment of the utility model, the first housing 101 has guide shaft mounting holes 144 at its four corners, the telescopic guide shaft 125 is rotatably connected in the guide shaft mounting holes 144, and the lower end of the telescopic guide shaft 125 is provided with a threaded connection part 146. The second housing 102 has screw mounting holes 147 at its four corners. By rotating the telescopic guide shaft 125, the threaded part at its lower end engages with the threaded mounting hole 147 on the second housing 102 to generate threaded transmission, thereby converting the rotational motion into linear displacement along the guide shaft axis between the first housing 101 and the second housing 102, thus controlling the relative distance between them. This creates a stable, reliable, and precise focal length adjustment mechanism. Through the self-locking characteristic of the threaded transmission, it effectively prevents focal length drift during operation, ensuring the stability of the imaging focal plane. At the same time, the guide shaft structure distributed at the four corners ensures the parallelism and stability of the two housings during the telescopic process.

[0024] In this embodiment of the present invention, the flexible telescopic tube 124 includes a plurality of mounting frames 148 arranged in an equidistant array and a flexible connecting part 149 installed between adjacent frames. The mounting frame 148 is provided with a guide shaft insertion hole 150, and the telescopic guide shaft 125 passes through the guide shaft insertion hole 150. When the focus adjustment assembly 107 is working, a relative displacement occurs between the first housing 101 and the second housing 102. At this time, the flexible connection part 149 undergoes controllable elastic deformation between the adjacent mounting frames 148, thereby smoothly adapting to this telescopic movement. The equidistantly arranged rigid mounting frames 148 provide uniform support points and a reliable mounting foundation for this deformation. It not only ensures the necessary freedom of movement for focus adjustment, allowing the housing to extend and retract smoothly without jamming, but also forms a retractable and airtight barrier between the first housing 101 and the second housing 102 through the continuous sealing characteristics of the flexible connection part 149, effectively preventing external dust, moisture and other contaminants from entering the precision optical chamber, thus improving the reliability and durability of the focus adjustment mechanism.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A miniature thermal imaging MIPI module, characterized in that, It includes a first housing (101), a second housing (102) and a third housing (103) installed in sequence. A lens assembly (105) is mounted on the upper end face of the first housing (101). An aperture adjustment assembly (106) is mounted between the lens assembly (105) and the first housing (101). A focal length adjustment assembly (107) is mounted between the first housing (101) and the second housing (102). A thermal imaging element (108) is mounted inside the second housing (102). A sealed first mounting chamber (109) is formed between the lens assembly (105), the first housing (101), and the second housing (102). A sealed second mounting chamber (110) is formed between the second housing (102) and the third housing (103). The lens assembly (105) includes a lens mounting base (111) fixed to the upper end face of the first housing (101), a lens barrel (112) is rotatably mounted inside the lens mounting base (111), a lens (114) is mounted on the upper end of the lens barrel (112), and a guide ring (116) is fixedly mounted on the lower end of the lens barrel (112). The aperture adjustment assembly (106) includes a rotating adjustment rod (117) and a light shield (118) rotatably mounted on the first housing (101). A guide post (120) is fixedly provided at the front end of the rotating adjustment rod (117). A guide drive groove (122) is provided on the lower end face of the guide ring (116). The guide post (120) slides in the guide drive groove (122). A guide follower groove (123) is provided on the light shield (118). The guide post (120) slides in the guide follower groove (123). The focal length adjustment assembly (107) includes a flexible telescopic tube (124) and a telescopic guide shaft (125). One end of the flexible telescopic tube (124) is fixedly connected to the lower end face of the first housing (101), and the other end of the flexible telescopic tube (124) is fixedly connected to the upper end face of the second housing (102). The first housing (101) and the second housing (102) are telescopically adjusted through the telescopic guide shaft (125).

2. The miniature thermal imaging MIPI module according to claim 1, characterized in that, The upper end face of the first housing (101) is provided with an L-shaped first limiting member (127) and a second limiting member (128). The first limiting member (127) and the second limiting member (128) are enclosed to form a square structure. The ends of the first limiting member (127) and the second limiting member (128) are respectively formed with U-shaped limiting arms (131). Adjacent U-shaped limiting arms (131) are enclosed to form a limiting hole (132). The lower end face of the rotating adjusting rod (117) is formed with a rotating adjusting disc (133) that rotates and engages within the limiting hole (132).

3. A miniature thermal imaging MIPI module according to claim 2, characterized in that, The upper end face of the first housing (101) is provided with a first guide limiting plate (134), which covers the first limiting member (127) and the second limiting member (128). The first guide limiting plate (134) is provided with an arc-shaped first guide limiting groove (136), and the guide post (120) extends upward through the first guide limiting groove (136) and slides within the first guide limiting groove (136).

4. A miniature thermal imaging MIPI module according to claim 3, characterized in that, The upper end face of the rotating adjustment rod (117) is formed with a positioning shaft (137). The light shield (118) is provided with a shaft mounting hole (138) sleeved on the positioning shaft (137). The light shield (118) is rotated and adjusted with the positioning shaft (137) as the rotation center. There are at least two light shields (118) and the two light shields (118) are symmetrical. The center of symmetry is located on the axis of the lens barrel (112).

5. A miniature thermal imaging MIPI module according to claim 4, characterized in that, The upper end face of the first housing (101) is also provided with a second guide limiting plate (141), which covers the light shield (118) and has an arc-shaped second guide limiting groove (142) on it. The guide post (120) passes through the second guide limiting groove (142) and slides within the second guide limiting groove (142).

6. A miniature thermal imaging MIPI module according to any one of claims 1-5, characterized in that, The first housing (101) has guide shaft mounting holes (144) at its four corners. The telescopic guide shaft (125) is rotatably connected in the guide shaft mounting holes (144). The lower end of the telescopic guide shaft (125) is provided with a threaded connection part (146). The second housing (102) has screw mounting holes (147) at its four corners.

7. A miniature thermal imaging MIPI module according to claim 6, characterized in that, The flexible telescopic tube (124) includes multiple mounting frames (148) arranged in an equidistant array and a flexible connecting part (149) installed between adjacent frames. The mounting frame (148) is provided with a guide shaft insertion hole (150), and the telescopic guide shaft (125) passes through the guide shaft insertion hole (150).

Images