Infrared imaging device with built-in image quality adjustment mechanism

Abstract

The present invention belongs to the field of infrared imaging technology, and specifically relates to an infrared imaging device containing an image quality adjustment mechanism. The infrared imaging device of the present invention comprises a lens barrel, a support assembly placed in the inner cavity of the lens barrel, and an image quality adjustment mechanism and an infrared imaging device body sequentially mounted on the support assembly, wherein the image quality adjustment mechanism comprises four guide shafts, a connecting plate, two trapezoidal blocks, an upper U-shaped block, a wedge-shaped block, a pin shaft and a connecting piece. The image quality adjustment mechanism of the present invention drives the trapezoidal blocks on the connecting plate to move through the connecting piece, thereby realizing the upper U-shaped block and the upward and downward displacement relative to the guide shaft of the wedge-shaped block, thereby realizing the fixing of an arbitrary position when the image quality of the infrared camera device is stable.

Description

Technical Field

[0001] The invention belongs to the technical field of infrared imaging, and in particular relates to an infrared imaging device containing an image quality adjustment mechanism. Background Art

[0002] In the field of national economy and national defense construction, infrared imaging technology with stable image quality plays a very important role. Its typical applications mainly include: resource survey, ecological environment monitoring, disaster assessment, marine ecological environment monitoring, and detection and identification of various military targets. The higher the image quality of the infrared camera, the stronger the recognition ability of the observed target. More stable infrared imaging technology will be more widely used in various fields.

[0003] In the prior art, when the infrared camera body is placed inside the lens barrel, image quality fine-tuning is required, and it is difficult to directly fix it inside the lens barrel. As a result, the infrared camera body may shake during actual operation, resulting in unstable image quality. Summary of the invention

[0004] The present invention provides an infrared imaging device with an image quality adjustment mechanism, which solves the problem in the prior art that the infrared camera body needs to be fine-tuned when placed inside a lens barrel, and is difficult to be directly fixed inside the lens barrel, so that the infrared camera body may shake in actual operation, resulting in unstable image quality. The specific contents of the present invention are as follows:

[0005] The object of the present invention is to provide an infrared imaging device including an image quality adjustment mechanism, wherein the infrared imaging device comprises a lens barrel, a support assembly placed in the inner cavity of the lens barrel, and an image quality adjustment mechanism and an infrared imaging device body sequentially mounted on the support assembly;

[0006] The support assembly includes a heat-conducting base, a mounting base plate and a mounting bracket;

[0007] The mounting base is fixedly attached to the heat-conducting base, and the mounting bracket is vertically fixed to the mounting base;

[0008] The image quality adjustment mechanism includes four guide shafts, a connecting plate, two trapezoidal blocks, an upper U-shaped block, two wedge-shaped blocks, a pin shaft and a connecting piece;

[0009] The connecting plate is movably connected to the mounting bracket via a connecting piece;

[0010] The trapezoidal block is fixedly mounted at both ends of the connecting plate, the upper end of the trapezoidal block and the lower end of the upper U-shaped block are mutually matched inclined surfaces, the upper part of the trapezoidal block and the lower part of the upper U-shaped block are limited by a pin shaft, the pin shaft is locked with both ends of the trapezoidal block, and the lower end of the trapezoidal block and the upper end of the wedge block are provided with mutually matched sliding grooves;

[0011] One end of each guide shaft is fixedly installed with the wedge block, and the other end of the guide shaft is nested with the upper U-shaped block.

[0012] Furthermore, the upper U-shaped block and the wedge-shaped block are connected to the trapezoidal block via tension springs.

[0013] Furthermore, both ends of the pin shaft are locked with the trapezoidal block via an open retaining ring.

[0014] Furthermore, the connecting plate and the mounting bracket are movably connected via long screws.

[0015] Furthermore, a tension spring is sleeved on the long screw.

[0016] Furthermore, one end of the guide shaft is connected to the wedge block via a thread.

[0017] Furthermore, the infrared imaging device body comprises a detector assembly, a circuit board and an infrared lens, and the detector assembly is installed near one end of the image quality adjustment mechanism.

[0018] Furthermore, the mounting bracket includes a first mounting bracket and a second mounting bracket, wherein the first mounting bracket is fixedly mounted at an end away from the infrared lens, and the second mounting bracket is fixedly mounted between the detector assembly and the infrared lens;

[0019] The first mounting bracket is used to mount the connector and the rear silent DC fan;

[0020] The second mounting bracket is used for mounting the front silent DC fan, and the rear silent DC fan is opposite to the front silent DC fan.

[0021] The infrared imaging device containing an image quality adjustment mechanism of the present invention comprises a lens barrel, a support assembly placed in the inner cavity of the lens barrel, and an adjustment mechanism and an infrared imaging device body sequentially mounted on the support assembly, wherein the adjustment mechanism comprises four guide shafts, a connecting plate, two trapezoidal blocks, an upper U-shaped block, a wedge-shaped block, a pin shaft and a connecting piece. The image quality adjustment mechanism of the present invention drives the trapezoidal blocks on the connecting plate to move through the connecting piece, realizes the upper U-shaped block and the upward and downward displacement relative to the guide shaft of the wedge-shaped block, thereby realizing the fixing of an arbitrary position when the image quality of the infrared camera device is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a main schematic diagram of the structure of the infrared imaging device including the image quality adjustment mechanism of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the image quality adjustment mechanism of the present invention;

[0024] Figure 3The present invention is a schematic structural diagram of an infrared imaging device equipped with a silent DC fan and containing an image quality adjustment mechanism.

[0025] Reference numerals

[0026] 1- Lens barrel.

[0027] 2-support assembly: 21-heat-conducting base; 22-mounting base plate; 23-mounting bracket: 231-first mounting bracket; 232-second mounting bracket.

[0028] 3- Image quality adjustment mechanism: 31- Guide shaft; 32- Tension spring; 33- Connecting plate; 34- Trapezoidal block; 35- Upper U-shaped block; 36- Wedge block; 37- Pin shaft; 38- Tension spring; 39- Open retaining ring; 310- Connecting piece.

[0029] 4- Infrared imaging device body: 41- Detector assembly; 42- Infrared lens; 43- Circuit board.

[0030] 5-Rear-end silent DC fan.

[0031] 6-Front-end silent DC fan. DETAILED DESCRIPTION

[0032] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0033] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0034] like Figure 1 As shown, the infrared imaging device of the present invention comprises a lens barrel 1, a support assembly 2 (not shown in the figure) placed in the inner cavity of the lens barrel 1, and an image quality adjustment mechanism 3 and an infrared imaging device body 4 (not shown in the figure) sequentially mounted on the support assembly 2;

[0035] The support assembly 2 (not shown in the figure) includes a heat-conducting base 21 for heat dissipation, a mounting base plate 22 and a mounting bracket 23, and the specific structure is: the mounting base plate 22 is fixedly attached to the heat-conducting base 21, and the mounting bracket 23 is vertically fixed to the mounting base plate 22;

[0036] like Figure 2As shown, the image quality adjustment mechanism 3 includes four guide shafts 31, a connecting plate 33, two trapezoidal blocks 34, an upper U-shaped block 35, two wedge-shaped blocks 36, a pin 37 and a connecting member 310;

[0037] The connecting plate 33 is movably connected to the mounting bracket 23 via the connecting piece 310, so that the connecting plate 33 can be horizontally displaced on the lens barrel 1. Preferably, the connecting plate 33 of the present invention is movably connected to the mounting bracket 23 via a long screw, wherein one end of the long screw is fixed to the connecting plate 33, and the other end passes through the mounting hole on the mounting bracket 23 and cooperates with the corresponding nut, and the connecting plate 33 can be horizontally displaced on the lens barrel 1 by loosening or tightening the nut. Furthermore, a tension spring 32 is sleeved on the long screw, and the tension spring 32 overcomes the friction force through its own elasticity when the nut is loosened, so that the connecting plate 33 moves;

[0038] The trapezoidal block 34 is fixedly mounted at both ends of the connecting plate 33 and moves horizontally with the horizontal displacement of the connecting plate 33. The upper end of the trapezoidal block 34 and the lower end of the upper U-shaped block 35 are mutually matched inclined surfaces. The upper U-shaped block 35 moves up and down with the horizontal displacement of the trapezoidal block 34 and fits tightly with the upper end of the inner wall of the lens barrel 1 to fix the main body 4 of the infrared imaging device to prevent shaking during use.

[0039] The upper part of the trapezoidal block 34 and the lower part of the upper U-shaped block 35 are limited by a pin 37, and the pin 37 is locked with both ends of the trapezoidal block 34. Preferably, both ends of the pin 37 of the present invention are locked with the trapezoidal block 34 by an open retaining ring 39, and the lower end of the trapezoidal block 34 and the upper end of the wedge block 36 are provided with mutually matching sliding grooves;

[0040] Preferably, the upper U-shaped block 35 and the wedge-shaped block 36 of the present invention are connected and contacted with the trapezoidal block 34 via a tension spring 38, the upper end of the tension spring 38 is fixedly connected to the upper U-shaped block 35, and the lower end of the tension spring 38 is fixedly connected to the wedge-shaped block 36. When the upper U-shaped block 35 is horizontally displaced, the tension spring 38 acts to make the upper U-shaped block 35 in close contact with the trapezoidal block 34.

[0041] One end of each guide shaft 31 is fixedly mounted with the wedge block 36, and preferably one end of the guide shaft 31 is threadedly connected with the wedge block 36. The other end of the guide shaft 31 is nested with the upper U-shaped block 35, and the upper U-shaped block 35 can move up and down along the guide shaft 31.

[0042] Furthermore, the infrared imaging device body 4 (not shown in the figure) includes a detector assembly 41 , a circuit board 43 and an infrared lens 42 . The detector assembly 41 is installed close to one end of the image quality adjustment mechanism 3 .

[0043] like Figure 3As shown, the mounting bracket 23 of the present invention includes a first mounting bracket 231 and a second mounting bracket 232, wherein the first mounting bracket 231 is fixedly mounted at an end away from the infrared lens 42, and the second mounting bracket 232 is fixedly mounted between the detector assembly 41 and the infrared lens 42;

[0044] The first mounting bracket 231 is used to mount the connector 310 and the rear silent DC fan 5;

[0045] The second mounting bracket 232 is used to install the front-end silent DC fan 6. The rear-end silent DC fan 5 is opposite to the front-end silent DC fan 6. The silent DC fans at both ends cool down the detector assembly 41 when working, and cooperate with the heat-conducting base 21 to achieve a relatively low temperature in the working environment of the infrared imaging device, thereby achieving an explosion-proof effect.

[0046] When the infrared imaging device of the present invention is assembled, adjusted and fixed, the connecting piece 310 in the image quality adjustment mechanism 3 drives the trapezoidal blocks 34 installed on both sides of the connecting plate 33 to perform horizontal displacement, thereby realizing the up and down displacement of the upper U-shaped block 35, so as to achieve the close fit and separation between the upper U-shaped block 35 and the upper side of the inner wall of the lens barrel 1, thereby achieving the purpose of fixing the infrared imaging device body 4 at any position in the lens barrel 1, thereby solving the problem in the prior art that the infrared camera body needs to be fine-tuned for image quality when placed inside the lens barrel, and it is difficult to directly fix it inside the lens barrel, so that the infrared camera body will shake in actual operation, resulting in unstable image quality.

[0047] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An infrared imaging device with an image quality adjustment mechanism, characterized in that: The infrared imaging device comprises a lens barrel (1), a support assembly (2) disposed in the inner cavity of the lens barrel (1), and an image quality adjustment mechanism (3) and an infrared imaging device body (4) which are sequentially mounted on the support assembly (2); The support assembly (2) comprises a heat-conducting base (21), a mounting base plate (22) and a mounting bracket (23); The mounting base plate (22) is fixedly attached to the heat-conducting base (21), and the mounting bracket (23) is vertically fixed to the mounting base plate (22); The image quality adjustment mechanism (3) comprises four guide shafts (31), a connecting plate (33), two trapezoidal blocks (34), an upper U-shaped block (35), two wedge-shaped blocks (36), a pin (37) and a connecting piece (310); The connecting plate (33) is movably connected to the mounting bracket (23) via a connecting piece (310); The trapezoidal block (34) is fixedly mounted at both ends of the connecting plate (33); the upper end of the trapezoidal block (34) and the lower end of the upper U-shaped block (35) are mutually matched inclined surfaces; the upper part of the trapezoidal block (34) and the lower part of the upper U-shaped block (35) are limited by a pin shaft (37); the pin shaft (37) and the two ends of the trapezoidal block (34) are locked; and the lower end of the trapezoidal block (34) and the upper end of the wedge block (36) are provided with mutually matched sliding grooves; One end of each guide shaft (31) is fixedly mounted on the wedge block (36), and the other end of the guide shaft (31) is nested and mounted on the upper U-shaped block (35); the upper U-shaped block (35) and the wedge block (36) are connected to the trapezoidal block (34) via a tension spring (38); and both ends of the pin shaft (37) are locked with the trapezoidal block (34) via an open retaining ring (39).

2. The infrared imaging device with a built-in image quality adjustment mechanism according to claim 1, characterized in that: The connecting plate (33) is movably connected to the mounting bracket (23) via long screws.

3. The infrared imaging device with a built-in image quality adjustment mechanism according to claim 2, characterized in that: A tension spring (32) is sleeved on the long screw.

4. The infrared imaging device with built-in image quality adjustment mechanism according to claim 3, characterized in that: One end of the guide shaft (31) is connected to the wedge block (36) via a thread.

5. The infrared imaging device with built-in image quality adjustment mechanism according to claim 1, characterized in that: The infrared imaging device body (4) comprises a detector assembly (41), a circuit board (43) and an infrared lens (42); the detector assembly (41) is installed close to one end of the image quality adjustment mechanism (3).

6. The infrared imaging device with built-in image quality adjustment mechanism according to claim 5, characterized in that: The mounting bracket (23) comprises a first mounting bracket (231) and a second mounting bracket (232), wherein the first mounting bracket (231) is fixedly mounted at an end away from the infrared lens (42), and the second mounting bracket (232) is fixedly mounted between the detector assembly (41) and the infrared lens (42); The first mounting bracket (231) is used to mount the connecting piece (310) and the rear silent DC fan (5); The second mounting bracket (232) is used to mount the front silent DC fan (6), and the rear silent DC fan (5) and the front silent DC fan (6) are opposite to each other.

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