Infrared temperature measurement system and device

Abstract

The utility model discloses an infrared temperature measurement system and device, comprising a first lens, a second lens, a spectroscope, an infrared receiver, a laser and a first adjusting module, the first lens, the spectroscope, the second lens and the infrared receiver are arranged in sequence; external infrared incident light sequentially transmits through the first lens, the spectroscope and the second lens and then is focused on the infrared receiver, and the laser device is arranged at a preset angle, so that laser emitted by the laser device is reflected by the spectroscope and then transmits through the first lens in the reverse direction of the infrared incident light to form collimated laser; the first adjusting module and the second lens are installed in a matched mode so as to adjust the position of the second lens. According to the infrared temperature measurement system and the infrared temperature measurement equipment, accurate positioning of an infrared temperature measurement point is realized through laser indication, and the indication laser is collimated through the first lens, so that the indication laser is not limited by distance, clear and visible positioning light spots are accurately formed on the temperature measurement point, and the infrared temperature measurement system and the infrared temperature measurement equipment are suitable for a working distance in a larger range.

Description

Technical Field

[0001] This utility model belongs to the field of non-contact temperature measurement technology, specifically relating to an infrared temperature measurement system and device. Background Technology

[0002] Infrared thermometry is often used for non-contact temperature measurement of high-temperature objects. This method first focuses the infrared radiation emitted by the object through a lens onto a receiver (such as a thermopile or photodiode). The receiver then converts the received light information into an electrical signal, the intensity of which is proportional to the radiated power. Finally, the peak wavelength of the high-temperature object is estimated using Wien's displacement law, and the temperature is accurately calculated using Planck's formula. This method is suitable for wide-range, multi-wavelength measurements.

[0003] Existing infrared temperature measurement devices generally suffer from limitations in working distance and measurement scenarios, as well as insufficient installation flexibility. Different application scenarios often require different models of temperature measurement devices to achieve accurate measurements. Furthermore, the measurement location of the temperature measurement device is not clearly defined, and the installation position is difficult to determine. This directly affects the accuracy of the measurement data. Only when the installation position ensures that the lens optical axis coincides with the center of the receiver can the reception efficiency be maximized, resulting in more accurate measurement results.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide an infrared temperature measurement system and device that can solve the problems of unclear measurement position indication and difficulty in determining the installation position.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] An infrared temperature measurement system includes a first lens, a second lens, a beam splitter, an infrared receiver, a laser, and a first adjustment module. The first lens, the beam splitter, the second lens, and the infrared receiver are arranged sequentially so that external infrared incident light is sequentially transmitted through the first lens, the beam splitter, and the second lens and then focused onto the infrared receiver. The laser is set at a preset angle so that its emitted laser light is reflected by the beam splitter and then transmitted through the first lens in the opposite direction to the infrared incident light to form a collimated laser. The first adjustment module is installed in conjunction with the second lens to adjust the position of the second lens.

[0008] In one or more embodiments of this utility model, the infrared temperature measurement system further includes a first reflector, and the laser and the first reflector are arranged at a preset angle corresponding to the beam splitter, so that the laser emitted by the laser is reflected by the first reflector and the beam splitter in sequence and then transmitted through the first lens in the opposite direction of the infrared incident light to form a collimated laser.

[0009] In one or more embodiments of this invention, the laser light reflected by the beam splitter to the first lens is coaxial with the infrared incident light transmitted through the first lens and directed towards the beam splitter.

[0010] In one or more embodiments of this utility model, the infrared temperature measurement system further includes a second reflector, which is configured at a preset angle to correspond with the beam splitter and the second lens to reflect the infrared incident light transmitted through the beam splitter onto the second lens; or the infrared temperature measurement system further includes a second reflector, which is configured at a preset angle to correspond with the first lens and the beam splitter to reflect the infrared incident light transmitted through the first lens onto the beam splitter, and reflect the laser light reflected by the beam splitter onto the first lens.

[0011] In one or more embodiments of the present invention, the first adjustment module is used to adjust the position of the second lens along the optical axis of the second lens.

[0012] In one or more embodiments of the present invention, the infrared temperature measurement system further includes a second adjustment module, which is installed in conjunction with the first lens to adjust the position of the first lens.

[0013] In one or more embodiments of the present invention, the second adjustment module is used to adjust the position of the first lens along the optical axis of the first lens.

[0014] In one or more embodiments of the present invention, the first lens comprises a cemented lens; and / or the second lens comprises a meniscus lens.

[0015] In one or more embodiments of this utility model, the radius of curvature of the mirror surface on the side of the first lens receiving the infrared incident light is smaller than the radius of curvature of the mirror surface on the other side.

[0016] A specific embodiment of this utility model also provides an infrared temperature measuring device, including a housing and the aforementioned infrared temperature measuring system, wherein the infrared temperature measuring system is disposed inside the housing.

[0017] Compared with existing technologies, the infrared temperature measurement system and equipment of this invention achieves precise positioning of the infrared temperature measurement point through laser indication. The indicator laser is collimated by a first lens, allowing it to form a clearly visible positioning spot on the temperature measurement point accurately, regardless of distance, making it suitable for a wider range of working distances. Furthermore, by sharing the optical path between the infrared light and the indicator laser, the system integration is significantly improved, resulting in a more compact overall structure.

[0018] This system is also equipped with adjustment modules for both the first and second lenses, enabling dual focusing and dynamic adaptation to a wide working distance from 0.65m to positive infinity. During long-distance measurements, non-contact temperature measurement effectively avoids the effects of high-temperature heat radiation, keeping the operating temperature consistently below 80℃. This design ensures measurement accuracy while significantly improving adaptability to various working environments and extending equipment lifespan, making it particularly suitable for harsh conditions such as industrial sites. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the infrared temperature measurement system in one embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of an infrared temperature measuring device in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the infrared temperature measurement system in another embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the infrared temperature measurement system in another embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] The terms "coupled," "connected," or "linked" in this specification include both direct and indirect connections. Indirect connections are those made through an intermediate medium, such as those made through an electrically conductive medium, which may have parasitic inductance or capacitance. Indirect connections may also include connections made through other active or passive devices to achieve the same or similar functional purpose, such as connections through switches, follower circuits, or other circuits or components. Furthermore, in this specification, terms such as "first" and "second" are primarily used to distinguish one technical feature from another, and do not necessarily require or imply any actual relationship, quantity, or order between these technical features.

[0026] In the detailed description of this specification, reference is made to the accompanying drawings, which form a part thereof, wherein like reference numerals always denote like parts, and wherein exemplary embodiments are shown by way of example that may be implemented. It should be understood that other embodiments may be utilized, and structural or logical changes may be made, without departing from the scope of this application. Therefore, the following detailed description should not be considered limiting.

[0027] The various operations in the specification may be described sequentially as multiple discrete actions or operations in a manner most conducive to understanding the claimed subject matter. However, the order of description should not be construed as implying that these operations must be sequentially related. Specifically, these operations may not be performed in the order presented. The described operations may be performed in a different order than in the described embodiments. Various additional operations may be performed in additional embodiments and / or the described operations may be omitted.

[0028] For the purposes of this application, the phrase "A and / or B" means (A), (B), or (A and B). For the purposes of this application, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0029] Various components and devices may be mentioned or shown in the singular form herein, but only for the convenience of discussion, and any element mentioned in the singular form may include multiple such elements as taught herein.

[0030] The description uses the phrases "in one embodiment," "in other embodiments," or "in some embodiments," each of which may refer to one or more of the same or different embodiments. Furthermore, the terms "comprising," "including," "having," etc., used in relation to embodiments of this application are synonymous.

[0031] Example 1

[0032] like Figure 1As shown, the infrared temperature measurement system in one embodiment of this utility model includes a first lens 10, a second lens 20, a beam splitter 30, a first reflector 40, a second reflector 50, an infrared receiver 60, a laser 70, a first adjustment module 80, and a second adjustment module 90.

[0033] The first lens 10, the beam splitter 30, the second lens 20, and the infrared receiver 60 are arranged in sequence so that the external infrared incident light (indicated by the thick gray solid line in the figure) is sequentially transmitted through the first lens 10, the beam splitter 30, and the second lens 20 and then focused onto the infrared receiver 60.

[0034] Furthermore, the second reflector 50 is set at a preset angle corresponding to the beam splitter 30 and the second lens 20 to reflect the infrared incident light transmitted through the beam splitter 30 onto the second lens 20.

[0035] In one embodiment, the first lens 10, beam splitter 30, and second reflector 50 are arranged sequentially along the x-axis, and the second reflector 50, second lens 20, and infrared receiver 60 are arranged sequentially along the y-axis. The optical axes of the first lens 10, beam splitter 30, second reflector 50, and second lens 20 are coaxial. External infrared incident light (which can be approximated as parallel light) is initially focused after passing through the first lens 10, propagates backward along the x-axis, passes through the beam splitter 30, illuminates the second reflector 50, is reflected along the y-axis by the second reflector 50, and is refocused onto the infrared receiver 60 after passing through the second lens 20.

[0036] The infrared radiation emitted by the object under test is sequentially focused by the first lens 10 and the second lens 20. The synergistic effect of the dual optical structures significantly increases the radiant flux, ultimately forming a high-energy-density light spot on the surface of the infrared receiver 60. By changing the propagation direction of the incident light through the second reflector 50, the size of the system in a single direction is reduced, improving installation flexibility.

[0037] In other embodiments, the first lens 10, beam splitter 30, second reflector 50, second lens 20 and infrared receiver 60 may also be arranged in other directions, and the reflection direction of the second reflector 50 may also be set according to actual needs.

[0038] like Figure 1 As shown, the laser 70 and the first reflector 40 are set at a preset angle to correspond to the beam splitter 30, so that the laser emitted by the laser 70 (shown by the black dotted line in the figure) is reflected by the first reflector 40 and the beam splitter 30 in sequence and then transmitted through the first lens 10 in the opposite direction of the infrared incident light to form a collimated laser.

[0039] Preferably, the laser light reflected by the beam splitter 30 to the first lens 10 and the infrared incident light transmitted through the first lens 10 and directed towards the beam splitter 30 are coaxial, i.e., both propagate along the x-axis. At this time, the infrared optical path and the laser optical path satisfy the object-image conjugate relationship, which can ensure a high degree of spatial overlap between the infrared optical axis and the laser optical axis, ensuring that the laser spot landing point is the infrared temperature measurement point.

[0040] By re-inclining the laser beam into the first lens 10, the diverging laser beam is re-collimated, and a parallel beam with a divergence angle of <1mrad is output to the outside. This allows the indicator laser to accurately form a clearly visible positioning spot at the temperature measurement point without distance limitations, making it suitable for a wider range of working distances.

[0041] There are various ways to place the laser 70, the first reflector 40, and the beam splitter 30 at different positions and angles. As long as the laser can be transmitted through the first lens 10 in the opposite direction of the infrared incident light, it is acceptable. Those skilled in the art can design according to actual conditions and requirements.

[0042] In one embodiment, laser 70 emits green laser light to achieve a better indicating effect. In other embodiments, laser 70 may also emit visible laser light of other colors.

[0043] In one embodiment, the beam splitter 30 is capable of transmitting infrared light and reflecting visible light, wherein the infrared light wavelength is 0.75 μm to 1000 μm, and the visible light includes green light at 520 nm. In other embodiments, when the laser 70 emits visible laser light of other wavelengths, the beam splitter 30 is also capable of reflecting visible light of the corresponding wavelength.

[0044] In other embodiments, the first reflector 40 may not be provided. In this case, the laser 70 is positioned at a preset angle toward the beam splitter 30 so that the laser emitted by the laser is reflected by the beam splitter 30 and transmitted through the first lens 10 in the opposite direction of the infrared incident light to form a collimated laser.

[0045] like Figure 1 As shown, the first lens 10 is a convex lens. In one embodiment, the first lens 10 includes a cemented lens. Specifically, the cemented lens includes a positive lens 11 and a negative lens 12. The positive lens 11 is close to the external object to be measured, and the negative lens 12 is close to the beam splitter 30, the second reflecting mirror 50, and the second lens 20. The cementing surface of the positive lens 11 and the negative lens 12 is curved, thereby achieving the correction of chromatic aberration and aberration. The cementing surface may be concave towards either the positive lens 11 or the negative lens 12.

[0046] Preferably, the radius of curvature of the mirror surface on the side of the first lens 10 that receives infrared incident light is smaller than the radius of curvature of the mirror surface on the other side. The mirror surface of the positive lens 11 that receives infrared incident light is the first convex surface, and the mirror surface of the negative lens 12 that emits infrared incident light is the second convex surface. That is, the radius of curvature of the first convex surface is smaller than the radius of curvature of the second convex surface, which can reduce the aberration of infrared imaging in the system.

[0047] In other embodiments, the first lens 10 may also be a separate lens, a lens group, or other lenses.

[0048] The first lens 10 has a certain degree of converging effect on the incident light on both sides, thereby achieving preliminary focusing of infrared incident light and collimation of laser light.

[0049] In one embodiment, the second lens 20 includes a meniscus lens. Specifically, the meniscus lens is a positive meniscus lens, with its convex surface facing the infrared receiver 60, achieving the effect of converging and focusing light. By using a meniscus lens, aberrations can be corrected, accuracy at multiple working distances can be achieved, and the light-gathering effect can be optimized, thereby improving measurement accuracy. In other embodiments, the second lens 20 may also be other lenses such as convex lenses or plano-convex lenses.

[0050] like Figure 1 As shown, the first adjustment module 80 is installed in conjunction with the second lens 20 to adjust the position of the second lens 20. The second adjustment module 90 is installed in conjunction with the first lens 10 to adjust the position of the first lens 10.

[0051] Specifically, the first adjustment module 80 is used to adjust the position of the second lens 20 along the optical axis direction (i.e., the y-axis direction in the figure).

[0052] The second adjustment module 90 is used to adjust the position of the first lens 10 along the optical axis direction (i.e., the x-axis direction in the figure).

[0053] In one embodiment, the first adjustment module 80 and the second adjustment module 90 may be a threaded screw module. In other embodiments, the first adjustment module 80 and the second adjustment module 90 may also be other movable positioning components such as slide rails and cylinders.

[0054] By employing a dual-degree-of-freedom mechanical adjustment structure, the object-image distance between the first lens 10 and the second lens 20 can be dynamically adjusted, achieving precise focusing at multiple working distances. This overcomes the limitation of the fixed focal length in traditional high-temperature infrared temperature measurement modules, enabling adaptive and precise focusing at multiple object distances within a range of 0.65m to positive infinity. When the object distance changes, adjusting the relative positions of the first lens 10 and the second lens 20 can compensate for image distance deviations in real time, ensuring that the spot diameter is always controlled within more than 90% of the sensitive area of ​​the infrared receiver 60.

[0055] In one embodiment, a CMOS sensor can also be integrated at the back focal position of the infrared receiver 60. The infrared focusing spot can be displayed in real time by software, and the precise adjustment amount of the first adjustment module 80 and the second adjustment module 90 can be automatically calculated by combining image analysis algorithms to achieve closed-loop control.

[0056] In one embodiment, for commonly used working distances (such as 1m / 5m / 10m), the corresponding positions of the first adjustment module 80 and the second adjustment module 90 can be pre-calibrated, and rapid positioning can be achieved through scale markings or limit devices to reduce on-site debugging time.

[0057] In other embodiments, the second adjustment module 90 may not be provided. In this case, the position of the second lens 20 can be adjusted by the first adjustment module 80 alone, which can also achieve a certain focusing effect.

[0058] like Figure 2 As shown, this embodiment also provides an infrared temperature measuring device, including a housing 100 and the aforementioned infrared temperature measuring system, wherein the infrared temperature measuring system is disposed inside the housing 100.

[0059] In one embodiment, the housing 100 has a window 101, and a window plate 102 is installed on the window 101. External light can pass through the window plate 102 and illuminate the first lens 10, and laser light can also be emitted outward through the window plate 102. The window plate 102 and the housing 100 can protect the infrared temperature measurement system to improve its adaptability to harsh environments such as high temperatures.

[0060] In other embodiments, the window 102 may not be provided, or the first lens 10 may be installed inside the window 101 of the housing 100 to improve the overall light receiving efficiency and reduce the light blocking of the mechanical structure.

[0061] In practical applications, when installing the infrared temperature measurement system or device in this embodiment, the installation position can be intuitively calibrated using the visible laser spot, ensuring precise alignment between the infrared temperature measurement module's optical path and the target being measured. This is particularly beneficial for measuring long distances (>10m) or small targets (<1mm), significantly reducing installation difficulty and guaranteeing the accuracy of measurement results. Because a collimated laser is used, a clear indicator spot can be formed at various working distances, meeting the requirements for rapid deployment and high-stability measurement in complex scenarios.

[0062] Through optimized spatial layout, the infrared light and laser share the same optical path, enabling the system to achieve high-collimation laser indication of <1mrad within a compact optical path, significantly improving system integration and achieving a compact overall structure. A dual-degree-of-freedom lens position adjustment mechanism dynamically adapts to a wide working distance range from 0.65m to positive infinity. During long-distance measurements, non-contact temperature measurement effectively avoids the effects of high-temperature thermal radiation, keeping the operating temperature consistently below 80℃. This also allows for the use of low-cost glass optical components, significantly improving system reliability and lifespan while ensuring performance.

[0063] This design not only ensures measurement accuracy but also significantly improves adaptability to different working environments and extends the service life of the equipment, making it particularly suitable for harsh working conditions such as industrial sites.

[0064] Example 2

[0065] like Figure 3 As shown, the infrared temperature measurement system in this embodiment differs from the infrared temperature measurement system in Embodiment 1 in that the position of the second reflector 50 is different, and the positions of the beam splitter 30, the first reflector 40 and the laser 70 are also adjusted accordingly.

[0066] Specifically, the first lens 10, the beam splitter 30, the second lens 20, and the infrared receiver 60 are arranged in sequence so that the external infrared incident light (indicated by the thick gray solid line in the figure) passes through the first lens 10, the beam splitter 30, and the second lens 20 in sequence and is then focused onto the infrared receiver 60.

[0067] Furthermore, the second reflector 50 is set at a preset angle corresponding to the first lens 10 and the beam splitter 30, so as to reflect the infrared incident light transmitted through the first lens 10 onto the beam splitter 30. The infrared incident light then passes through the beam splitter 30 and the second lens 20 in sequence and is focused onto the infrared receiver 60.

[0068] The laser 70 and the first reflecting mirror 40 are positioned at a preset angle corresponding to the beam splitter 30, so that the laser emitted from the laser 70 is reflected sequentially by the first reflecting mirror 40 and the beam splitter 30 and then propagates in the opposite direction to the infrared incident light. The second reflecting mirror 50 then reflects the laser reflected by the beam splitter 30 onto the first lens 10, and then transmits it through the first lens 10 to form a collimated laser.

[0069] In one embodiment, the first lens 10 and the second reflecting mirror 50 are arranged sequentially along the x-axis, and the second reflecting mirror 50, beam splitter 30, second lens 20, and infrared receiver 60 are arranged sequentially along the y-axis. The optical axes of the first lens 10, second reflecting mirror 50, beam splitter 30, and second lens 20 are coaxial. External infrared incident light (which can be approximately considered as parallel light) is initially focused after passing through the first lens 10, propagates backward along the x-axis, is reflected along the y-axis by the second reflecting mirror 50, and is then refocused onto the infrared receiver 60 after passing through the beam splitter 30 and the second lens 20 in sequence.

[0070] The laser emitted from laser 70 is reflected sequentially by the first reflecting mirror 40 and the beam splitter 30, propagates along the y-axis, and is reflected along the x-axis by the second reflecting mirror 50, finally passing through the first lens 10 to form a collimated laser. Preferably, the laser reflected by the beam splitter 30 to the first lens 10 is coaxial with the infrared incident light that passes through the first lens 10 and is incident on the beam splitter 30.

[0071] There are various ways to place the laser 70, the first reflector 40, and the beam splitter 30 at different positions and angles. As long as the laser can be transmitted through the first lens 10 in the opposite direction of the infrared incident light, it is acceptable. Those skilled in the art can design according to actual conditions and requirements.

[0072] Apart from this, the infrared temperature measurement system in this embodiment is exactly the same as the infrared temperature measurement system in Embodiment 1, and achieves the same technical effect.

[0073] This embodiment also provides an infrared temperature measuring device. Compared with the infrared temperature measuring device in Embodiment 1, the only difference is in the infrared temperature measuring system of the infrared temperature measuring device, which will not be described in detail here.

[0074] Example 3

[0075] like Figure 4 As shown, the infrared temperature measurement system in this embodiment differs from the infrared temperature measurement system in Embodiment 1 in that the second reflector 50 is removed, and the positions of the second lens 20 and the infrared receiver 60 are also adjusted accordingly.

[0076] Specifically, the first lens 10, the beam splitter 30, the second lens 20, and the infrared receiver 60 are arranged in sequence so that the infrared incident light passes through the first lens 10, the beam splitter 30, and the second lens 20 in sequence and is then focused on the infrared receiver 60.

[0077] In one embodiment, the first lens 10, the beam splitter 30, the second lens 20, and the infrared receiver 60 are all arranged along the x-axis, so that the infrared incident light is transmitted along the x-axis through the beam splitter 30 and then continues to be transmitted along the x-axis through the second lens 20, and finally is focused onto the infrared receiver 60.

[0078] At the same time, the first adjustment module 80 adjusts the position of the second lens 20 along the optical axis direction (i.e., the x-axis direction in the figure).

[0079] Apart from this, the infrared temperature measurement system in this embodiment is exactly the same as the infrared temperature measurement system in Embodiment 1 or 2, and achieves the same technical effect.

[0080] This embodiment also provides an infrared temperature measuring device. Compared with the infrared temperature measuring device in Embodiment 1, the only difference is in the infrared temperature measuring system of the infrared temperature measuring device, which will not be described in detail here.

[0081] 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.

[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An infrared temperature measurement system, characterized by The infrared temperature measurement system comprises a first lens, a second lens, a beam splitter, an infrared receiver, a laser and a first adjusting module.

2. The infrared thermometry system of claim 1, wherein, The infrared temperature measurement system further comprises a first reflector, the laser and the first reflector are arranged at a preset angle corresponding to the beam splitter, so that the laser emitted by the laser is reflected by the first reflector and the beam splitter in turn and then transmitted through the first lens in the opposite direction of the infrared incident light to form a collimated laser.

3. The infrared thermometry system of claim 1, wherein, The laser reflected by the beam splitter to the first lens is coaxial with the infrared incident light transmitted through the first lens to the beam splitter.

4. The infrared thermometry system of claim 1, wherein, The infrared temperature measurement system further comprises a second reflector, the second reflector is arranged at a preset angle corresponding to the beam splitter and the second lens to reflect the infrared incident light transmitted through the beam splitter to the second lens. Alternatively The infrared temperature measurement system further comprises a second reflector, the second reflector is arranged at a preset angle corresponding to the first lens and the beam splitter to reflect the infrared incident light transmitted through the first lens to the beam splitter and reflect the laser reflected by the beam splitter to the first lens.

5. The infrared thermometry system of claim 1, wherein, The first adjusting module is used for adjusting the position of the second lens along the optical axis direction of the second lens.

6. The infrared thermometry system of claim 1, wherein, The infrared temperature measurement system further comprises a second adjusting module, the second adjusting module is arranged in cooperation with the first lens to adjust the position of the first lens.

7. The infrared thermometry system of claim 6, wherein, The second adjusting module is used for adjusting the position of the first lens along the optical axis direction of the first lens.

8. The infrared thermometry system of claim 1, wherein, The first lens comprises a cemented lens; and / or The second lens comprises a meniscus lens.

9. The infrared thermometry system of claim 1, wherein, The curvature radius of the mirror surface on one side of the first lens receiving the infrared incident light is smaller than that of the mirror surface on the other side.

10. An infrared temperature measurement device, characterized by The infrared temperature measurement system comprises a housing and the infrared temperature measurement system according to any one of claims 1-9, the infrared temperature measurement system is arranged inside the housing.

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