Mechanical manual focusing infrared lens

Abstract

The utility model discloses a mechanical manual focusing infrared lens, which comprises a lens main body, the lens main body comprises a main lens cone, an adjusting lens cone and a head group lens cone, the main lens cone is located at the outer side of the adjusting lens cone, the end part of the adjusting lens cone is connected with the head group lens cone, the main lens cone is internally provided with a third lens, and the third lens is connected with the adjusting lens cone. A second lens is arranged in the adjusting lens barrel, and a first lens is arranged in the head group lens barrel; the manual adjustment assembly is located at the joint of the main lens cone and the adjustment lens cone, the manual adjustment assembly comprises a first supporting seat and a second supporting seat which are located on the inner side of the adjustment lens cone, and the manual adjustment assembly is arranged between the main lens cone and the adjustment lens cone, so that the problem that in the focusing ring operation process, an operator needs to hold the equipment body with one hand and rotate the focusing ring with the other hand, and the operation efficiency is high can be solved. Equipment is difficult to keep stable in scenes such as mobile inspection and high-altitude operation, and particularly, two hands are more difficult to coordinate when the protective equipment is worn.

Description

Technical Field

[0001] This utility model relates to the field of infrared lens technology, and in particular to a mechanically manually focused infrared lens. Background Technology

[0002] Infrared lenses are special because, like night vision devices that can detect human body heat, they use germanium crystal materials (similar to diamond structures) instead of ordinary glass, allowing infrared light, invisible to the naked eye, to pass through. Just as ordinary window glass blocks ultraviolet rays, this "special glass" opens a channel specifically for infrared light. Infrared thermal imaging technology is widely used in industrial inspection, security monitoring, and medical diagnosis, and its core technology uses germanium crystal lenses to transmit infrared wavelengths.

[0003] In the current process of focusing an infrared lens, the operator usually rotates the focusing ring on the lens barrel and observes the real-time image of the infrared imaging device (such as a thermal imager) to slowly adjust until the edge of the target object is clear. However, during the operation of the focusing ring, the operator needs to hold the main body of the equipment with one hand and rotate the focusing ring with the other hand. It is difficult to keep the equipment stable in scenarios such as mobile inspection and high-altitude operations, especially when wearing protective equipment, it is even more difficult to coordinate both hands. Utility Model Content

[0004] This utility model provides a mechanically manually adjustable infrared lens. By setting a manual adjustment component between the main lens barrel and the adjustment lens barrel, it can solve the problem that during the operation of the focusing ring, the operator needs to hold the main body of the equipment with one hand and rotate the focusing ring with the other hand, which makes it difficult to maintain the stability of the equipment in scenarios such as mobile inspection and high-altitude operation, and the coordination of both hands is even more difficult when wearing protective equipment.

[0005] This utility model provides a mechanically manually adjustable infrared lens, comprising:

[0006] The lens body includes a main lens barrel, an adjustment lens barrel, and a head lens barrel. The main lens barrel is located outside the adjustment lens barrel, and the head lens barrel is connected to the end of the adjustment lens barrel. A third lens is disposed inside the main lens barrel, a second lens is disposed inside the adjustment lens barrel, and a first lens is disposed inside the head lens barrel.

[0007] The manual adjustment assembly is located at the connection between the main lens barrel and the adjustment lens barrel. The manual adjustment assembly includes a support base one and a support base two located inside the adjustment lens barrel. The support base one has a threaded hole in its middle, and the threaded hole penetrates through the middle of the support base one. The support base two has a guide hole inside, and the guide hole penetrates through the middle of the support base two. An adjustment post is provided on the outside of the main lens barrel, and one end of the adjustment post is connected to a threaded rod.

[0008] In a mechanically manually focused infrared lens according to an embodiment of the present invention, the optical centers of the third lens, the second lens and the first lens are arranged sequentially along the same optical axis X, and the offset of the line connecting the geometric centers of the three lenses from the optical axis X is less than or equal to ±0.05mm.

[0009] In a mechanical manual focusing infrared lens according to an embodiment of the present invention, the main lens barrel, the adjusting lens barrel and the head lens barrel are all provided with limiting grooves, and there are three sets of limiting grooves. The third lens, the second lens and the first lens are respectively adapted and connected to the limiting grooves, and the three sets of limiting grooves are distributed in a stepped manner.

[0010] In a mechanical manual focusing infrared lens according to one embodiment of the present invention, four sets of auxiliary sliders are integrally connected to one side edge of the adjusting lens barrel, and the edges of the auxiliary sliders are all provided with rounded corners.

[0011] In a mechanically manually focused infrared lens according to one embodiment of the present invention, the inner wall of the main lens barrel is provided with a groove that matches the auxiliary slider, and the number of grooves is equal to the number of auxiliary sliders.

[0012] In a mechanically manually focused infrared lens according to one embodiment of the present invention, the adjusting column and the threaded rod are fixedly connected, and a bearing is provided at the connection between the threaded rod and the main lens barrel.

[0013] In a mechanically manually focused infrared lens according to one embodiment of the present invention, a guide rod adapted to the guide hole is fixedly connected inside the main lens barrel, and the ends of the guide rod and the threaded rod are integrally connected to a limit block.

[0014] In a mechanically manually adjustable infrared lens according to one embodiment of the present invention, several sets of anti-slip strips are fixed at the outer edge of the adjustment column, and the anti-slip strips are arranged at equal intervals.

[0015] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a mechanical manual focusing infrared lens. By setting a manual adjustment component between the main lens barrel and the adjustment lens barrel, it can solve the problem that during the operation of the focusing ring, the operator needs to hold the main body of the equipment with one hand and rotate the focusing ring with the other hand. In scenarios such as mobile inspection and high-altitude operation, it is difficult to maintain the stability of the equipment, especially when wearing protective equipment, the coordination of both hands is more difficult.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a mechanically manually focused infrared lens according to an embodiment of this application;

[0019] Figure 2 yes Figure 1 A partial disassembled structural diagram of a manually focused infrared lens for mechanical applications;

[0020] Figure 3 yes Figure 1 A partial structural diagram of a mechanically manually focused infrared lens;

[0021] Figure 4 yes Figure 1 Top view of a mechanically manually focused infrared lens;

[0022] Figure 5 yes Figure 4 A schematic diagram of the side section structure of AA;

[0023] Figure 6 yes Figure 5 Enlarged view of point A in the middle. Detailed Implementation

[0024] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figures 1 to 6 As shown, this application provides a mechanically manually adjustable infrared lens, including: a lens body 100, comprising a main lens barrel 10, an adjusting lens barrel 20, a manual adjustment assembly 30, and a head lens barrel 40. The main lens barrel 10 is located outside the adjusting lens barrel 20, and the head lens barrel 40 is connected to the end of the adjusting lens barrel 20. A third lens 11 is disposed inside the main lens barrel 10, a second lens 21 is disposed inside the adjusting lens barrel 20, and a first lens 41 is disposed inside the head lens barrel 40. The manual adjustment assembly 30... Located at the connection between the main lens barrel 10 and the adjusting lens barrel 20, the manual adjustment assembly 30 includes a support base 33 and a support base 38 located inside the adjusting lens barrel 20. The support base 33 has a threaded hole 34 in the middle, and the threaded hole 34 passes through the middle of the support base 33. The support base 38 has a guide hole 39 inside, and the guide hole 39 passes through the middle of the support base 38. An adjusting column 35 is provided on the outside of the main lens barrel 10, and one end of the adjusting column 35 is connected to a threaded rod 36.

[0028] After adopting the above technical solution, since the manual adjustment component 30 is located between the main lens barrel 10 and the adjustment lens barrel 20, when focusing is required between the main lens barrel 10 and the adjustment lens barrel 20, the user holds the device with one hand and then rotates the manual adjustment component 30 with one finger, thereby performing the focusing operation between the main lens barrel 10 and the adjustment lens barrel 20.

[0029] During the use of the manual adjustment component 30, the user holds the infrared device, then contacts the anti-slip strip on the outside of the adjustment column 35 with their index finger, and then rotates the adjustment column 35 clockwise. This causes the adjustment column 35 to drive the threaded rod 36 to rotate along the inside of the bearing 37 and the threaded hole 34. Under the threaded connection between the threaded rod 36 and the threaded hole 34, the support base 1 33 drives the adjustment lens barrel 20 to move outward along the inner side of the main lens barrel 10, and at the same time drives the support base 2 38 to move. This causes the guide hole 39 to slide along the outer side of the guide rod 310. Then, during the movement of the adjustment lens barrel 20, the four sets of auxiliary sliders 31 on the outer side of the adjustment lens barrel 20 slide along the inner side of the slide groove 32, thereby moving the adjustment lens barrel 20 and the second lens 21 outward, thus performing the focusing operation of the lens with one hand.

[0030] It should be noted that when the adjusting lens barrel 20 slides along the inner side of the main lens barrel 10, the auxiliary slider 31 and the sliding groove 32 provide assistance, ensuring the stability of the adjusting lens barrel 20 during the adjustment process. This, in turn, drives the second lens 21 to move, ensuring that the optical centers of the second lens 21, the third lens 11, and the first lens 41 are always aligned along the same optical axis X. (See attached diagram) Figure 5 .

[0031] In an optional embodiment, the optical centers of the third lens 11, the second lens 21, and the first lens 41 are arranged sequentially along the same optical axis X, and the offset of the line connecting their geometric centers from the optical axis X is less than or equal to ±0.05 mm.

[0032] It should be noted that the optical centers of the third lens 11, the second lens 21 and the first lens 41 are arranged sequentially along the same optical axis X, thus conforming to the optical design principle. The first lens 41 is a convex lens, and its radius of curvature R1 satisfies 10mm≤R1≤50mm.

[0033] In one optional embodiment, the main lens barrel 10, the adjusting lens barrel 20, and the head lens barrel 40 are all provided with limiting grooves, and there are three sets of limiting grooves. The third lens 11, the second lens 21, and the first lens 41 are respectively adapted and connected to the limiting grooves, and the three sets of limiting grooves are distributed in a stepped manner, thereby ensuring that the third lens 11, the second lens 21, and the first lens 41 can be installed accordingly, which can meet the normal use of the infrared lens.

[0034] In one optional embodiment, four sets of auxiliary sliders 31 are integrally connected to one side edge of the adjusting lens barrel 20, and the edges of the auxiliary sliders 31 are all rounded, so that when the auxiliary sliders 31 slide along the inside of the slide groove 32, the smoothness is ensured, and the friction and jamming phenomenon caused by the right angle of the auxiliary sliders 31 on the inner wall of the slide groove 32 is avoided, thereby further improving the stability of the second lens 21 during the movement process.

[0035] In an optional embodiment, the inner wall of the main lens barrel 10 is provided with a groove 32 that is adapted to the auxiliary slider 31, and the number of grooves 32 is equal to the number of auxiliary sliders 31. There are four sets of auxiliary sliders 31 and grooves 32 to ensure that when the adjusting lens barrel 20 slides along the inside of the main lens barrel 10, it has a four-point stabilizing effect, so that the adjusting lens barrel 20 can smoothly reciprocate along the inside of the main lens barrel 10.

[0036] In an optional embodiment, the adjusting column 35 and the threaded rod 36 are fixedly connected, and a bearing 37 is provided at the connection between the threaded rod 36 and the main lens barrel 10, so that the bearing 37 provides rotational support to the adjusting column 35 during rotation, thereby enabling the threaded rod 36 to rotate normally along the inside of the threaded hole 34.

[0037] In an optional embodiment, a guide rod 310 adapted to the guide hole 39 is fixedly connected inside the main lens barrel 10. During the adjustment of the lens barrel 20, the guide hole 39 can slide along the outside of the guide rod 310. The ends of the guide rod 310 and the threaded rod 36 are integrally connected to the limit block 311, so that when the threaded rod 36 rotates along the inside of the threaded hole 34, the threaded rod 36 is limited to the maximum value, preventing the threaded rod 36 from leaving the inside of the threaded hole 34.

[0038] In one optional embodiment, several sets of anti-slip strips are fixed at the outer edge of the adjusting column 35, and the anti-slip strips are arranged at equal intervals. When the adjusting column 35 is rotated, it plays an anti-slip role. At the same time, the equidistant distribution of the anti-slip strips can guide sweat, rainwater and other liquids, further playing an anti-slip role.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A mechanical manual focus infrared lens characterized by, The utility model relates to a lens barrel, which comprises a main lens barrel, an adjusting lens barrel and a head group lens barrel. A hand adjusting assembly is arranged at the joint of the main lens barrel and the adjusting lens barrel. The optical centers of the third lens, the second lens and the first lens are arranged along the same optical axis X in sequence, and the offset between the geometric centers of the three lenses and the optical axis X is less than or equal to ±0.05 mm.

2. The mechanical manual focus infrared lens of claim 1, wherein, The interior of the main lens barrel, the adjusting lens barrel and the head group lens barrel is provided with three sets of limiting grooves.

3. The mechanical manual focus infrared lens of claim 1, wherein, The side edge of the adjusting lens barrel is integrally connected with four sets of auxiliary sliding blocks, and the edges of the auxiliary sliding blocks are provided with rounded corners.

4. The mechanical manual focus infrared lens of claim 1, wherein, The inner wall of the main lens barrel is provided with sliding grooves matched with the auxiliary sliding blocks, and the number of the sliding grooves is equal to that of the auxiliary sliding blocks.

5. The mechanical manual focus infrared lens of claim 4, wherein, The adjusting column is fixedly connected with the threaded rod, and the joint of the threaded rod and the main lens barrel is provided with a bearing.

6. The mechanical manual focus infrared lens of claim 5, wherein, The interior of the main lens barrel is fixedly connected with a guide rod matched with the guide hole, and the ends of the guide rod and the threaded rod are integrally connected with limiting blocks.

7. The mechanical manual focus infrared lens of claim 6, wherein, The outer side edge of the adjusting column is fixedly provided with a plurality of groups of anti-skid strips, and the anti-skid strips are arranged at equal intervals.

8. The mechanical manual focus infrared lens of claim 7, wherein, ​

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