Infrared thermal imager

Abstract

The utility model relates to an infrared thermal imager, which comprises a lens, an adjusting panel, a laser range finder and at least three first connecting pieces, and is characterized in that the lens comprises a lens main body and an infrared optical lens arranged on the lens main body, and is provided with an optical axis extending in the front-back direction; the adjusting panel is mounted on the lens, is provided with an accommodating hole for exposing the infrared optical lens, and comprises a mounting frame for forming a frame hole penetrating in the front-back direction; at least three adjusting holes distributed at intervals in the circumferential direction of the mounting frame are formed in the mounting frame in a penetrating mode, and all the adjusting holes extend in the front-back direction. The laser range finder is mounted on the mounting frame; the first connecting pieces are movably connected to the adjusting holes in the front-back direction so as to adjust the distance between the laser range finder and the adjusting panel, and the laser receiving heads and the laser emitting heads of the first connecting pieces are exposed out of the frame holes of the mounting frame. The objective of the utility model is to solve the problem that an existing infrared thermal imager with a built-in laser range finder cannot conveniently debug the optical axis.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared thermal imaging, in particular to an infrared thermal imager. Background Art

[0002] Infrared thermal imaging equipment is generally used for observation and target search at night. During use, target distance information plays a vital role in the user's judgment, so infrared thermal imaging equipment will add a laser rangefinder to measure the target distance.

[0003] At present, most of the laser rangefinders used in infrared thermal imagers are external laser rangefinders, that is, a laser rangefinder module and the infrared thermal imager are fixed together through additional mechanical structures and electronic interfaces. They are essentially two units. A few use built-in laser rangefinders, that is, the laser rangefinder and thermal imaging equipment are integrated into one.

[0004] Infrared thermal imagers are compact devices, so they have high requirements for appearance, operation, and accuracy. For infrared thermal imagers using external laser rangefinders, since the two are independent, their appearance is not beautiful enough, the structure is more complicated, the assembly requirements and parts costs are higher, and the operation is not convenient enough. The built-in laser rangefinder cannot easily debug the optical axis. Utility Model Content

[0005] Based on the above description, the utility model provides an infrared thermal imager to solve the problem that the existing infrared thermal imager with a built-in laser rangefinder cannot conveniently perform optical axis adjustment.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] An infrared thermal imager, comprising:

[0008] The lens comprises a lens body and an infrared optical lens mounted on the lens body, and has an optical axis extending in a front-to-back direction;

[0009] An adjustment panel is mounted on the lens body and is provided with a receiving hole for exposing the infrared optical lens, wherein the adjustment panel comprises a mounting frame, wherein the mounting frame forms a frame hole penetrating in the front-to-back direction; the mounting frame is penetrated with at least three adjustment holes spaced apart along its circumference, and each of the adjustment holes extends in the front-to-back direction;

[0010] A laser rangefinder, mounted on the mounting frame;

[0011] At least three first connecting members, each of the first connecting members is movably connected to each of the adjusting holes in the front-rear direction to adjust the distance between the laser rangefinder and the adjusting panel, and its laser receiving head and laser emitting head are both exposed from the frame holes of the mounting frame.

[0012] On the basis of the above technical solutions, the present utility model can also be improved as follows:

[0013] Further, the adjusting hole is set as a threaded hole;

[0014] The first connecting member is set as a screw that is in threaded fit with the threaded hole.

[0015] Further, four adjusting holes are provided, and the four adjusting holes are located at the four corners of the mounting frame.

[0016] Further, the frame holes of the mounting frame are provided in two and are adjacent to each other, and respectively correspond to the laser receiving head and the laser emitting head of the laser rangefinder;

[0017] The mounting frame has a connecting plate located between its two frame holes and extending in the up-down direction, and at least two through holes are penetrated through the connecting plate;

[0018] The laser rangefinder is provided with at least two connecting holes, and the two connecting holes respectively correspond to the two through holes;

[0019] The infrared thermal imager further includes at least two second connecting members, and each of the second connecting members connects each of the through holes and the corresponding connecting holes.

[0020] Further, the mounting frame forms a mounting groove with a notch facing backward;

[0021] The laser rangefinder is accommodated in the mounting groove;

[0022] The frame holes and each of the adjusting holes are both provided at the bottom of the mounting groove.

[0023] Further, the infrared thermal imager further includes a focusing mechanism, and the focusing mechanism is installed at the rear side of the lens body.

[0024] Further, a card slot is recessed on the front side surface of the mounting frame;

[0025] Each of the adjusting holes penetrates through the bottom of the card slot;

[0026] The infrared thermal imager further includes a card frame adapted to the card slot, and the frame hole of the card frame is arranged corresponding to the frame hole of the adjusting hole.

[0027] Further, the adjusting panel further includes a panel body;

[0028] The accommodating hole is provided in the panel body;

[0029] The mounting frame is connected to the upper hole wall of the accommodating hole.

[0030] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0031] By movably connecting three of the first connecting members to three of the adjusting holes in the front-back direction, before fixing the laser rangefinder to the adjustment panel, the distance between each of the connecting holes and each of the adjusting holes can be adjusted, so as to be able to adjust the angular deflection of the installed laser rangefinder, so that the laser optical axis of the laser rangefinder is adjusted to be completely coincident with the infrared optical axis of the infrared optical lens, and the performance of the infrared thermal imager is improved. Description of the Drawings

[0032] Figure 1 Schematic structural diagram of an infrared thermal imager provided by an embodiment of the present utility model (excluding the clamping frame);

[0033] Figure 2 is Figure 1 three-dimensional exploded structural diagram;

[0034] Figure 3 Front view schematic diagram of an infrared thermal imager provided by an embodiment of the present utility model;

[0035] Figure 4 is Figure 3 Cross-sectional view along A-A;

[0036] Figure 5 is Figure 4 Enlarged schematic diagram of the partial A in;

[0037] In the drawings, the list of components represented by each reference numeral is as follows:

[0038] 1, lens; 11, lens body; 12, infrared optical lens; 2, adjustment panel; 21, accommodating hole; 22, mounting frame; 222, adjusting hole; 223, connecting plate; 2231, through hole; 224, mounting groove; 225, card slot; 23, panel body; 3, laser rangefinder; 31, connecting hole; 4, focusing mechanism; 5, clamping frame; 6, infrared sensor; 7, circuit board assembly; a, adjustment gap. Detailed Embodiment

[0039] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0041] It can be understood that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the figure is flipped, the element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (such as rotating 90 degrees or other orientations), and the spatial description used herein is accordingly interpreted.

[0042] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection", if there is a transfer of electrical signals or data between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0043] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" or "having" or the like specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0044] Please refer to Figure 1 and Figure 2, the present utility model provides an infrared thermal imager, which includes a lens 1, an adjustment panel 2, a laser rangefinder 3 and at least three first connectors. The lens 1 includes a lens body 11 and an infrared optical lens 12 installed on the lens body 11, and has an optical axis extending in the front-rear direction; the adjustment panel 2 is installed on the lens body 11 and is provided with a receiving hole 21 for exposing the infrared optical lens 12. The adjustment panel 2 includes a mounting frame 22, and the mounting frame 22 forms a through hole extending in the front-rear direction; at least three adjustment holes 222 are provided in the mounting frame 22 at intervals along its circumferential direction, and each adjustment hole 222 extends in the front-rear direction; the laser rangefinder 3 is installed on the mounting frame 22; each of the first connectors is movably connected to each adjustment hole 222 in the front-rear direction to adjust the distance between the laser rangefinder 3 and the adjustment panel 2, and its laser receiving head and laser emitting head are both exposed from the through hole of the mounting frame 22.

[0045] The three first connectors are movably connected to the three adjustment holes 222 in the front-rear direction to adjust the distance between each connection hole 31 and each adjustment hole 222 before fixing the laser rangefinder 3 to the adjustment panel 2, so as to be able to adjust the angular deflection of the installed laser rangefinder 3, so that the laser optical axis of the laser rangefinder 3 is adjusted to completely coincide with the infrared optical axis of the infrared optical lens 12, improving the performance of the infrared thermal imager.

[0046] Further, in this embodiment, the adjustment hole 222 is set as a threaded hole; the first connector is set as a screw that is threadedly matched with the threaded hole. By adjusting the depth of the screw connected to the threaded hole, the gap between the adjustment hole 222 and the adjustment hole 222 is adjusted. In this way, the structure is simple, easy to set, and the cost is low.

[0047] In another embodiment, the first connector can also be set as a push rod, and the push rod is movably connected to the adjustment hole 222 with a certain interference. The end of the push plate abuts against the laser rangefinder 3.

[0048] Specifically, continue to refer to Figure 1 and Figure 2 , the adjustment holes 222 are set to four, and the four adjustment holes 222 are located at the four corners of the mounting frame 22. Thus, it is convenient to adjust the deflection angle of the laser rangefinder 3 during installation, simplifying the operation.

[0049] In order to improve the installation stability of the laser rangefinder 3, refer to Figure 1 and Figure 2, the frame holes of the mounting frame 22 are provided with two and are arranged adjacent to each other, and respectively correspond to the laser receiving head and the laser transmitting head of the laser rangefinder 3; the mounting frame 22 has a connecting plate 223 located between its two frame holes and extending in the up and down directions, and at least two through holes 2231 are penetrated through the connecting plate 223; the laser rangefinder 3 is provided with at least two connecting holes 31, and the two connecting holes 31 respectively correspond to the two through holes 2231; the infrared thermal imager further includes at least two second connectors, and each of the second connectors connects each of the through holes 2231 and each of the connecting holes 31. Thus, the laser rangefinder 3 can be further fixed to the mounting frame 22, so that the installation is firm and the installation stability is improved.

[0050] Specifically, the connecting hole 31 is provided as a threaded hole, and the second connector is provided as a screw screwed into the threaded hole. Thus, two of the second connectors can be first respectively passed through the two through holes 2231 and preliminarily connected to the two connecting holes 31 to position the laser rangefinder 3 on the mounting frame 22. Then, the lengths of the first connectors extending out of the adjusting holes 222 are adjusted to adjust the deflection angle of the laser rangefinder 3 so that the laser optical axis of the laser rangefinder 3 is consistent with the infrared optical axis of the infrared optical lens 12, and then the two second connectors are respectively locked in the two connecting holes 31 to firmly install the laser rangefinder 3 on the mounting frame 22. In this way, the installation stability is further improved.

[0051] In this embodiment, continue to refer to Figure 1 and Figure 2 The mounting frame 22 is formed with a mounting groove 224 with a notch facing backward; the laser rangefinder 3 is accommodated in the mounting groove 224, and there is an adjustment gap a between the periphery of the laser rangefinder 3 and the mounting groove 224; the frame holes and the adjusting holes 222 are all arranged at the bottom of the mounting groove 224. Thus, the laser rangefinder 3 can be carried by the mounting groove 224, avoiding excessive downward forces on the first connectors and the second connectors and improving the connection stability.

[0052] Specifically, in this embodiment, refer to Figures 3 to 5 , a card slot 225 is recessed on the front side surface of the mounting frame 22; each of the adjusting holes 222 penetrates through the bottom of the card slot 225; the infrared thermal imager further includes a card frame 5 adapted to the card slot 225, and the frame holes of the card frame 5 are arranged corresponding to the frame holes of the adjusting holes 222. Thus, the card frame 5 can cover the ends of the four first connectors, making the appearance of the infrared thermal imager more beautiful.

[0053] In this embodiment, refer to Figure 4, the infrared thermal imager further includes a focusing mechanism 4, and the focusing mechanism 4 is installed at the rear side of the lens body 11. The focusing mechanism 4 is used to adjust the focal length to ensure clear images at various distances.

[0054] In this embodiment, the mounting frame 22 further includes a panel body 23; the receiving hole 21 is provided in the panel body 23; the mounting frame 22 is connected to the upper hole wall of the receiving hole 21. The infrared optical lens 12 is provided with a notch adapted to the mounting frame 22.

[0055] In addition, in this embodiment, referring to Figure 5 , the infrared optical lens 12 is composed of at least two germanium and sulfur lenses. The infrared thermal imager further includes a circuit board assembly 7 and an infrared sensor 6. The infrared sensor 6 and the circuit board assembly 7 are both provided at the rear side of the lens 1. The infrared sensor 6 and the laser rangefinder 3 are both electrically connected to the circuit board assembly 7. The infrared sensor 6 receives signals, and the circuit board assembly 7 is used to convert the signals into an image for display for the user to identify.

[0056] It should be noted that the infrared sensor 6 and the circuit board assembly 7 are common technical features in the art, and the electrical connections between the infrared sensor 6 and the laser rangefinder 3 and the circuit board assembly 7 are common electrical connection methods in the art, which will not be elaborated here.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An infrared thermal imager, characterized in that: include: The lens comprises a lens body and an infrared optical lens mounted on the lens body, and has an optical axis extending in a front-to-back direction; An adjustment panel is mounted on the lens body and is provided with a receiving hole for exposing the infrared optical lens, wherein the adjustment panel comprises a mounting frame, wherein the mounting frame forms a frame hole penetrating in the front-to-back direction; the mounting frame is penetrated with at least three adjustment holes spaced apart along its circumference, and each of the adjustment holes extends in the front-to-back direction; A laser rangefinder, mounted on the mounting frame; At least three first connecting members, each of which is movably connected to each of the adjustment holes along the front-rear direction to adjust the distance between the laser rangefinder and the adjustment panel, and its laser receiving head and laser emitting head are exposed from the frame hole of the installation frame.

2. The infrared thermal imager according to claim 1, characterized in that: The adjustment hole is configured as a threaded hole; The first connecting member is configured as a screw threadably matched with the threaded hole.

3. The infrared thermal imager according to claim 1, characterized in that: The four adjustment holes are arranged to be four and are located at four corners of the installation frame.

4. The infrared thermal imager according to claim 1, characterized in that: The mounting frame has two frame holes which are arranged adjacent to each other and correspond to the laser receiving head and the laser transmitting head of the laser rangefinder respectively; The installation frame has a connecting plate located between the two frame holes and extending in the up-down direction, and the connecting plate is penetrated by at least two through holes; The laser rangefinder is provided with at least two connection holes, and the two connection holes correspond to the two through holes respectively; The infrared thermal imager further comprises at least two second connecting members, each of which connects each of the through holes and each of the corresponding connecting holes.

5. The infrared thermal imager according to claim 1, characterized in that: The mounting frame is formed with a mounting slot with a notch facing backwards; The laser rangefinder is accommodated in the installation groove; The frame hole and each of the adjustment holes are arranged at the bottom of the installation groove.

6. The infrared thermal imager according to claim 1, characterized in that: The infrared thermal imager also includes a focusing mechanism, which is installed on the rear side of the lens body.

7. The infrared thermal imager according to claim 1, characterized in that: The front side of the installation frame is concavely provided with a card slot; Each of the adjustment holes is arranged through the bottom of the slot; The infrared thermal imager also includes a card frame adapted to the card slot, and a frame hole of the card frame is arranged corresponding to a frame hole of the adjustment hole.

8. The infrared thermal imager according to claim 1, characterized in that: The adjustment panel also includes a panel body; The receiving hole is provided in the panel body; The installation frame is connected to the upper hole wall of the accommodating hole.

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