Optical lens anti-fog detection device and method based on graphene heat conduction network

Abstract

This invention discloses an optical lens anti-fogging detection device and method based on a graphene thermally conductive network, belonging to the field of optical lens anti-fogging detection technology. It includes a detection frame and a water bath fixedly mounted on the detection frame. A retainer is fixedly mounted on the upper surface of the detection frame directly above the water bath. An optical lens body is positioned within the retainer. A laser is fixedly mounted on one end of the upper surface of the detection frame, and a photoelectric sensor is fixedly mounted on the other end. A collimating lens is positioned between the retainer and the laser. An electric slide rail assembly is mounted on the detection frame between the retainer and the photoelectric sensor. Multiple positioning bracket assemblies are evenly spaced on the sliding end surface of the electric slide rail assembly. By combining different graphene thermally conductive network layers with the optical lens body, the anti-fogging effect of the optical lens body can be compared and analyzed, improving the reliability of the detection data.

Description

Technical Field

[0001] This invention relates to the field of optical lens anti-fogging detection technology, specifically to an optical lens anti-fogging detection device and detection method based on a graphene thermal conductive network. Background Technology

[0002] Graphene has excellent thermal conductivity. In the field of anti-fogging of optical lenses, heat can be uniformly transferred by constructing a graphene thermal conductive network to prevent water vapor from condensing into fog on the lens surface due to temperature differences. By placing optical lenses with graphene thermal conductive networks on anti-fogging testing equipment, a real fogging scenario can be simulated to quantify the anti-fogging performance of the lenses, so as to make targeted improvements to the design of optical lenses.

[0003] For example, patent CN217930783U discloses a lens anti-fog testing device, including: a laser, a receiver, an aperture, a water bath, and a lens base. The water bath has a cavity for storing liquid, and the cavity is connected to a testing station. Lens bases are provided on both the left and right sides of the testing station. The two lens bases are positioned between the laser and the receiver. An L1 lens and an L2 lens are sequentially provided at the front end of the laser, and an L3 lens is positioned between the receiver and the lens base. The aperture is positioned at the front end of the receiver. The device eliminates the reflector, which causes instability, and uses two similar samples for testing. The equivalent reflector is used for reciprocating testing, and the shutter is added to ensure that the sample is accurately placed before starting the timing test. This avoids the human error that occurs when the sample is placed and the timing is started in the original method.

[0004] For example, patent CN212903817U discloses a lens anti-fog testing device, including a conveyor line with multiple evenly arranged testing mechanisms spaced at intervals on the conveyor line. Each testing mechanism includes a connecting seat, which is detachably connected to the conveyor line. A weighing device is located at the bottom of the connecting seat, and a pull rod is located at the bottom of the weighing device. A lens clamp is located at the bottom of the pull rod. A control display screen is located at the front of the connecting seat and is electrically connected to the weighing device. By setting up testing mechanisms that follow the transmission of the conveyor line, and by including a cooler and a steam module that the testing mechanisms will pass through on the conveyor line, a complete process mechanism for testing and reporting non-conforming products is realized. The device is simple and convenient to operate, and can quickly and accurately test the anti-fog properties of lenses in an assembly line manner. The weighing device digitally displays the fogging status of the lens, which is convenient for users to analyze and improve the lens, effectively enhancing the practicality of the device.

[0005] For example, patent CN102928195B discloses an anti-fog testing machine, which includes a chassis, a test cylinder, a water tank, an atomizer, an electric heating element, and a control circuit system electrically connected to a power source. The test cylinder is connected to the top of the chassis and has a plurality of test holes. The water tank is located inside the chassis and is sealed and connected to the test cylinder. The atomizer and the electric heating element are respectively located inside the water tank. The control circuit system is electrically connected to the atomizer and the electric heating element respectively. The swimming goggles to be tested are placed on the test holes of the test cylinder, the test time and test temperature are set through the control circuit system, and then the control switch is turned on to carry out the anti-fog test.

[0006] The number of graphene thermal conductive network layers and the coverage area on optical lenses affect the upper limit of the lens's thermal conductivity and light transmittance loss. With full coverage, heat can be directly transferred to the lens through the network without any thermal blind spots. When the graphene thermal conductive network is used to cover the edge area of ​​the optical lens, the coverage range determines the uniformity of heat distribution on the lens surface, which directly affects the overall anti-fogging effect. Different thicknesses and curvatures of optical lenses are suitable for different graphene thermal conductive networks. Some existing anti-fogging detection devices are not convenient for comparing and detecting the impact of different graphene thermal conductive networks on the anti-fogging effect of optical lenses, resulting in limited detection data.

[0007] To address the aforementioned issues, there is an urgent need for innovative designs based on existing optical lens anti-fog detection devices. Summary of the Invention

[0008] The purpose of this invention is to provide an optical lens anti-fogging detection device and method based on graphene thermal conductive networks, so as to solve the problem mentioned in the background art that some existing anti-fogging detection devices are not convenient for comparing and detecting the influence of different graphene thermal conductive networks on the anti-fogging effect of optical lenses, and the detection data is singular.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an optical lens anti-fogging detection device and method based on a graphene thermal conductive network, comprising a detection frame and a water bath fixedly mounted on the detection frame. A retainer is fixedly mounted on the upper surface of the detection frame directly above the water bath. An optical lens body is positioned within the retainer. A laser is fixedly mounted on one end of the upper surface of the detection frame at the retainer, and a photoelectric sensor is fixedly mounted on the other end of the upper surface of the detection frame at the retainer. A collimating lens is positioned between the retainer and the laser. A steam port corresponding to the opening above the water bath is opened on the detection frame. A fan that accelerates steam flow is installed at an angle in the water bath. An electric slide rail assembly is installed on the detection frame between the retainer and the photoelectric sensor. Multiple positioning bracket assemblies are evenly spaced on the sliding end surface of the electric slide rail assembly. Graphene thermal conductive network layers of different numbers and coverage areas are positioned on the positioning bracket assemblies.

[0010] Preferably, the retainer is threaded with three sets of threaded pressure rods at equal angles along the central axis, and a rubber column is fixedly installed at one end of the threaded pressure rod near the optical lens body.

[0011] Preferably, the positioning bracket assembly includes a support frame that is fixed at equal intervals to the sliding end of the electric slide rail assembly. A telescopic rod is fixedly installed on the support frame. A positioning frame is fixedly installed at the telescopic end of the telescopic rod. A positioning bottom ring is fixed on the positioning frame and distributed coaxially with the retainer. The graphene thermally conductive network layer is pressed and limited on the positioning bottom ring.

[0012] Preferably, a primary movable bracket is slidably connected through the positioning frame, and a front pressure ring is fixedly installed on the primary movable bracket; a secondary movable bracket is slidably connected through the positioning bottom ring, and a rear pressure ring is fixedly installed on the secondary movable bracket; the front pressure ring and the rear pressure ring are respectively pressed and limited on the front and rear end faces of the graphene thermal conductive network layer.

[0013] Preferably, a primary threaded rod is fixedly connected to the positioning frame, a primary movable support is slidably sleeved on the primary threaded rod, and a primary nut limiting the movement position of the primary movable support is threaded onto the outer thread of the primary threaded rod; a secondary threaded rod is fixedly connected to the positioning frame, a secondary movable support is slidably sleeved on the secondary threaded rod, and a secondary nut limiting the movement position of the secondary movable support is threaded onto the outer thread of the secondary threaded rod; a positioning seat is fixedly installed at the end of the primary and secondary threaded rods away from the positioning frame, and the positioning seat is slidably sleeved on the outside of the telescopic rod.

[0014] Preferably, a cylinder is rotatably mounted on the support frame, the output end of the cylinder is rotatably connected to the positioning frame, and the cylinder is tilted and supported between the support frame and the positioning frame.

[0015] Preferably, the retainer is provided with a displacement mechanism that reinforces the connection between the optical lens body and the graphene thermally conductive network layer. The displacement mechanism can simultaneously correct the vertical state of the optical lens body in the retainer.

[0016] Preferably, the shifting mechanism includes an adjusting frame that is slidably connected to both sides of the retainer, with the portion of the adjusting frame penetrating inside the retainer close to the curved surface of the optical lens body; a disc seat is fixedly sleeved on the outside of the adjusting frame, and a positioning spring is elastically connected between the disc seat and the retainer, with the positioning spring sleeved on the outside of the adjusting frame.

[0017] Preferably, a rotating frame is rotatably connected to the adjusting frame, and an elastic plate is elastically connected between the rotating frame and the retaining frame; a protruding rod is fixedly connected to the positioning frame, a cylindrical rod is fixedly installed on the protruding rod, and a retaining ring that can engage with the cylindrical rod is fixedly installed on the rotating frame.

[0018] The method for detecting anti-fogging of optical lenses based on graphene thermal conductive networks, applied to the aforementioned anti-fogging detection device for optical lenses based on graphene thermal conductive networks, includes the following steps:

[0019] S1. The optical lens body is mounted and confined in the cage, keeping the laser, collimating lens, optical lens body and photoelectric sensor in the same plane.

[0020] S2. Select different graphene thermal conductive network layers with different numbers of layers, full coverage, edge coverage, etc., and install them on different positioning bracket assemblies. Move and press the different graphene thermal conductive network layers onto the optical lens body in sequence for comparative testing.

[0021] S3. The laser outputs a beam, and the collimating lens calibrates the diverging beam into parallel light. The parallel light passes through the optical lens body and illuminates the photoelectric sensor. The photoelectric sensor collects the transmitted light power and image in real time, converts them into electrical signals, and detects the anti-fog effect of the optical lens based on the light transmittance.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-fog detection device for optical lenses based on graphene thermal conductive network controls the bonding of graphene thermal conductive network layers with different numbers and coverage ranges to the optical lens body, simulates a fogging environment through a water bath, and monitors the light transmittance of the optical lens body in real time through a photoelectric sensor based on the laser beam emitted, thereby analyzing the anti-fog effect of the optical lens body.

[0023] Furthermore, multiple positioning bracket assemblies are evenly spaced on the sliding end surface of the electric slide rail assembly. Based on the thickness, material, and curvature of the optical lens body, graphene thermal conductive network layers with different numbers of layers, full coverage, and different edge coverage areas are selected and installed on different positioning bracket assemblies. The positioning bracket assemblies can push the graphene thermal conductive network layer to adhere tightly to the surface of the optical lens body, so that heat can be quickly and evenly distributed to the surface of the optical lens body through the graphene thermal conductive network layer. By using a combined graphene thermal conductive network layer and optical lens body, the influence of graphene thermal conductive network layers in different states on the anti-fog effect of the optical lens body can be compared and analyzed, and the detection structure is more comprehensive.

[0024] By moving the front and rear pressure rings located next to the positioning base ring, the graphene thermal conductive network layer inserted into the positioning bracket assembly can be pressed and confined next to the positioning base ring, keeping the graphene thermal conductive network layer coaxially confined next to the optical lens body. Furthermore, by moving the positioning bracket, the graphene thermal conductive network layer can be moved closer to the optical lens, facilitating the combination of the two for anti-fog detection.

[0025] Furthermore, the retainer is equipped with a displacement mechanism that reinforces the connection between the optical lens body and the graphene thermal conductive network layer. When the moving positioning frame controls the graphene thermal conductive network layer to fit with the optical lens body, the protruding rod and cylindrical rod on the positioning frame move synchronously. The cylindrical rod moves and engages with the retaining ring, pushing the rotating frame fixed on the retaining ring to rotate. The rotating frame controls the adjusting frame to move and press against the front end face of the optical lens body. The adjusting frame, through contact with the curved surface of the front end of the optical lens body, pushes it to move further closer to the graphene thermal conductive network layer at the rear end, keeping the two in close contact to complete the anti-fog detection.

[0026] When the adjustment frame moves to contact the curved surface at the front end of the optical lens body, the two sides of the optical lens body are simultaneously subjected to pushing force due to the relative movement of the adjustment frames at both ends. Under the limiting effect of the front adjustment frame and the rear graphene heat-conducting network layer, the verticality of the optical lens body set in the retainer can be corrected, preventing the optical lens body from tilting and being confined in the retainer, so that the emitted beam can pass through the optical lens body perpendicularly, improving the reliability of anti-fog detection data. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the detection frame structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the water bath tank of the present invention.

[0029] Figure 3 This is a schematic diagram of the multi-group graphene thermal conductive network layer structure of the present invention.

[0030] Figure 4 This is a schematic diagram of the cage structure of the present invention.

[0031] Figure 5 This is a schematic diagram of the positioning bracket assembly structure of the present invention.

[0032] Figure 6 This is a schematic diagram of the front and rear pressure rings of the present invention.

[0033] Figure 7 This is a schematic diagram of the primary and secondary moving frames of the present invention.

[0034] Figure 8 This is a schematic diagram of the primary threaded rod and the secondary threaded rod of the present invention.

[0035] Figure 9 This is a schematic diagram of the cylinder structure of the present invention.

[0036] Figure 10 This is a schematic diagram of the adjustment frame structure of the present invention.

[0037] Figure 11 This is a schematic diagram of the rotating frame structure of the present invention.

[0038] Figure 12 This is a schematic diagram of the retaining ring structure of the present invention.

[0039] In the diagram: 1. Detection frame; 101. Steam port; 2. Water bath; 201. Fan; 3. Cage; 31. Threaded pressure rod; 32. Rubber column; 4. Optical lens body; 5. Laser; 6. Collimating lens; 7. Photoelectric sensor; 8. Electric slide rail assembly; 9. Positioning bracket assembly; 91. Support frame; 92. Telescopic rod; 93. Positioning frame; 931. Primary threaded rod; 932. Primary nut; 933. Secondary threaded rod; 934. Secondary nut; 935. Positioning seat; 94. Positioning bottom ring; 95. Primary moving bracket; 96. Front pressure ring; 97. Secondary moving bracket; 98. Rear pressure ring; 99. Cylinder; 10. Graphene thermal conductive network layer; 11. Adjustment frame; 12. Disc seat; 13. Positioning spring; 14. Rotating frame; 15. Elastic sheet; 16. Snap ring; 17. Protruding rod; 18. Cylindrical rod. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figures 1-5 The present invention provides the following technical solution: an optical lens anti-fogging detection device and detection method based on graphene thermal conductive network, including a detection frame 1 and a water bath 2 fixedly installed on the detection frame 1. A retainer 3 is fixedly installed on the upper surface of the detection frame 1 directly above the water bath 2. An optical lens body 4 is positioned in the retainer 3. A laser 5 is fixedly installed on one end of the upper surface of the detection frame 1 at the retainer 3, and a photoelectric sensor 7 is fixedly installed on the other end of the upper surface of the detection frame 1 at the retainer 3. A collimating lens 6 is provided between the retainer 3 and the laser 5. A steam port 101 is opened on the detection frame 1 corresponding to the opening above the water bath 2. A fan 201 for accelerating steam flow is installed at an angle in the water bath 2. An electric slide rail assembly 8 is installed on the detection frame 1 between the retainer 3 and the photoelectric sensor 7. Multiple positioning bracket assemblies 9 are evenly spaced on the sliding end surface of the electric slide rail assembly 8. Graphene thermal conductive network layers 10 with different numbers and different coverage areas are positioned on the positioning bracket assemblies 9. The retainer 3 is threaded with three sets of threaded rods 31 at equal angles along the central axis. A rubber column 32 is fixedly installed at one end of the threaded rod 31 near the optical lens body 4.

[0042] Please see Figures 6-9The positioning bracket assembly 9 includes a support frame 91 fixed at equal intervals to the sliding end of the electric slide rail assembly 8. A telescopic rod 92 is fixedly installed on the support frame 91. A positioning frame 93 is fixedly installed at the telescopic end of the telescopic rod 92. A positioning base ring 94, coaxially distributed with the retainer 3, is fixedly installed on the positioning frame 93. The graphene thermal conductive network layer 10 is pressed and limited on the positioning base ring 94. A primary moving bracket 95 is slidably connected through the positioning frame 93. A front pressure ring 96 is fixedly installed on the primary moving bracket 95. A secondary moving bracket 97 is slidably connected through the positioning base ring 94. A rear pressure ring 98 is fixedly installed on the secondary moving bracket 97. The front pressure ring 96 and the rear pressure ring 98 are respectively pressed and limited on the front and rear end faces of the graphene thermal conductive network layer 10.

[0043] Please see Figure 8 and Figure 9 A primary threaded rod 931 is fixedly connected to the positioning frame 93. A primary movable support 95 is slidably sleeved on the primary threaded rod 931, and a primary nut 932, which limits the movement position of the primary movable support 95, is threaded onto the external thread of the primary threaded rod 931. A secondary threaded rod 933 is fixedly connected to the positioning frame 93. A secondary movable support 97 is slidably sleeved on the secondary threaded rod 933, and a secondary nut 934, which limits the movement position of the secondary movable support 97, is threaded onto the external thread of the secondary threaded rod 933. A positioning seat 935 is fixedly installed at the end of the primary threaded rod 931 and the secondary threaded rod 933 away from the positioning frame 93, and the positioning seat 935 is slidably sleeved on the outside of the telescopic rod 92. A cylinder 99 is rotatably mounted on the support frame 91. The output end of the cylinder 99 is rotatably connected to the positioning frame 93, and the cylinder 99 is tilted and supported between the support frame 91 and the positioning frame 93.

[0044] The optical lens body 4 is placed in the retainer 3. The rubber column 32 is pressed against the outer section of the optical lens body 4 by rotating the threaded pressure rod 31. The detection position of the optical lens body 4 can be stably defined by the three sets of threaded pressure rods 31 and rubber columns 32. According to the manufacturing material, thickness and curvature of the optical lens body 4, graphene thermal conductive network layers 10 with different numbers of layers, full coverage and different edge coverage areas are selected and installed on the positioning bracket assembly 9. The electric slide rail assembly 8 controls the movement of different positioning bracket assemblies 9 to correspond to the position of the retainer 3, and controls the position of the positioning bracket assembly 9. The graphene thermally conductive network layer 10 is attached to the surface of the optical lens body 4. A laser beam is output through the laser 5. The beam passes through the collimating lens 6 and penetrates the optical lens body 4. The transmittance is detected in real time by the photoelectric sensor 7. The influence of different graphene thermally conductive network layers 10 on the anti-fogging effect of the optical lens body 4 is analyzed based on the transmittance. The combined optical lens body 4 and graphene thermally conductive network layer 10 can quickly complete the comparative test, and the test data is more comprehensive. At the same time, the liquid in the water bath 2 is heated during the test, and the water vapor moves upward to the periphery of the holder 3 through the steam port 101 to simulate the fogging environment.

[0045] When installing the graphene thermal conductive network layer 10, it is inserted into the positioning bracket assembly 9. The first-stage movable bracket 95 is controlled to slide through the positioning bottom ring 94. The other end of the first-stage movable bracket 95 is fitted onto the first-stage threaded rod 931 and slides. The first-stage movable bracket 95 pushes the front pressure ring 96 away from the positioning bottom ring 94, which pushes the graphene thermal conductive network layer 10 outward. The first-stage nut 932 is rotated and tightened on the first-stage threaded rod 931 to limit the movement position of the first-stage movable bracket 95 on the first-stage threaded rod 931. The second-stage movable bracket 97 is controlled to slide through. The secondary moving bracket 97 moves on the positioning frame 93, and the other end of the secondary moving bracket 97 slides on the secondary threaded rod 933. The secondary moving bracket 97 drives the rear pressure ring 98 to move closer to the positioning bottom ring 94, which presses the graphene thermal conductive network layer 10 onto the surface of the positioning bottom ring 94. The secondary nut 934 is rotated and tightened on the secondary threaded rod 933 to limit the movement position of the secondary moving bracket 97 on the secondary threaded rod 933. The front pressure ring 96 and the rear pressure ring 98 are pressed against both ends of the graphene thermal conductive network layer 10, stably limiting it next to the positioning bottom ring 94.

[0046] For the installed graphene thermal conductive network layer 10, the operating cylinder 99 adjusts the distance between the positioning frame 93 and the support frame 91. The cylinder 99 is positioned between the positioning frame 93 and the support frame 91 and rotates, which pushes the positioning frame 93 to move away from the support frame 91. The positioning frame 93 drives the positioned graphene thermal conductive network layer 10 to move synchronously, so that it moves and fits against the surface of the optical lens body 4 in the retainer 3, so as to complete the anti-fog detection.

[0047] Example 2: Please refer to Figure 9 and Figure 10 Based on Embodiment 1, a displacement mechanism is also disclosed, the specific structure of which is as follows: a displacement mechanism is provided on the retainer 3 to reinforce the connection between the optical lens body 4 and the graphene thermal conductive network layer 10. The displacement mechanism can simultaneously correct the vertical state of the optical lens body 4 in the retainer 3.

[0048] Please see Figures 10-12 The shifting mechanism includes an adjusting frame 11 that slides through both sides of the retainer 3. The portion of the adjusting frame 11 that penetrates inside the retainer 3 is close to the curved surface of the optical lens body 4. A disc seat 12 is fixedly sleeved on the outside of the adjusting frame 11. A positioning spring 13 is elastically connected between the disc seat 12 and the retainer 3, and the positioning spring 13 is sleeved on the outside of the adjusting frame 11. A rotating frame 14 is rotatably connected to the adjusting frame 11, and an elastic piece 15 is elastically connected between the rotating frame 14 and the retainer 3. A protruding rod 17 is fixedly connected to the positioning frame 93, and a cylindrical rod 18 is fixedly installed on the protruding rod 17. A retaining ring 16 that can engage with the cylindrical rod 18 is fixedly installed on the rotating frame 14.

[0049] When the positioning frame 93 and the graphene thermally conductive network layer 10 move closer to the retainer 3, the protruding rod 17 and the cylindrical rod 18 fixed on the positioning frame 93 move synchronously. The cylindrical rod 18 moves and engages with the retaining ring 16. As the cylindrical rod 18 continues to move, the retaining ring 16 drives the rotating frame 14 to rotate on the adjusting frame 11. When the rotating frame 14 rotates, it stretches the elastic sheet 15 and pushes the adjusting frame 11 to slide through the retainer 3, so that the adjusting frame 11 moves to contact the curved surface of the optical lens body 4. The adjusting frame 11 can push the optical lens body 4 to move closer to the graphene thermally conductive network layer 10 through the curved surface, further pressing the graphene thermally conductive network layer 10 and the optical lens body 4, so that the graphene thermally conductive network layer 10 can evenly transfer heat to the optical lens body 4, maintaining the anti-fog effect after assembly.

[0050] Furthermore, both ends of the retainer 3 are provided with adjustment brackets 11. The two sets of adjustment brackets 11 move relative to each other and contact the two sides of the optical lens body 4. The two sides of the optical lens body 4 are simultaneously subjected to pushing force, which can correct the verticality of the optical lens body 4 in the retainer 3 and prevent the optical lens body 4 from being tilted in the retainer 3. This allows the output beam to pass through the optical lens body 4 vertically, improving the reliability of the anti-fog detection data.

[0051] The method for detecting anti-fogging of optical lenses based on graphene thermal conductive networks, applied to the aforementioned anti-fogging detection device for optical lenses based on graphene thermal conductive networks, includes the following steps:

[0052] S1. The optical lens body 4 is installed and confined in the retainer 3, keeping the laser 5, collimating lens 6, optical lens body 4 and photoelectric sensor 7 in the same plane.

[0053] S2. Select different graphene thermal conductive network layers 10 with different numbers of layers, full coverage, edge coverage, etc., and install them on different positioning bracket components 9. Move and press the different graphene thermal conductive network layers 10 onto the optical lens body 4 in sequence for comparison and testing.

[0054] S3. The laser beam is output through the laser 5, and the collimating lens 6 calibrates the diverging beam into parallel light. The parallel light passes through the optical lens body 4 and illuminates the photoelectric sensor 7. The photoelectric sensor 7 collects the transmitted light power and image in real time, converts them into electrical signals, and detects the anti-fog effect of the optical lens based on the light transmittance.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical lens anti-fog testing device based on a graphene thermal conductive network, comprising a testing frame (1) and a water bath (2) fixedly mounted on the testing frame (1), characterized in that: The upper end face of the testing frame (1) is fixedly installed above the water bath (2) with a retainer (3). An optical lens body (4) is positioned in the retainer (3). A laser (5) is fixedly installed at one end of the upper end face of the testing frame (1) and a photoelectric sensor (7) is fixedly installed at the other end of the upper end face of the testing frame (1) and the laser (5). A collimating lens (6) is provided between the retainer (3) and the laser (5). The testing frame (1) has a steam port (101) corresponding to the opening above the water bath (2), and a fan (201) to accelerate the flow of steam is installed at an angle in the water bath (2). An electric slide rail assembly (8) is installed on the detection frame (1) between the retainer (3) and the photoelectric sensor (7). Multiple positioning bracket assemblies (9) are evenly spaced on the sliding end surface of the electric slide rail assembly (8). Graphene thermal conductive network layers (10) with different numbers of layers and different coverage are positioned on the positioning bracket assembly (9). The positioning bracket assembly (9) includes a support frame (91) fixed at equal intervals to the sliding end of the electric slide rail assembly (8), a telescopic rod (92) fixedly installed on the support frame (91), a positioning frame (93) fixedly installed on the telescopic end of the telescopic rod (92), a positioning bottom ring (94) coaxially distributed with the retainer (3) fixed on the positioning frame (93), and a graphene thermal conductive network layer (10) pressed and limited on the positioning bottom ring (94); The cage (3) is provided with a shifting mechanism that reinforces the connection between the optical lens body (4) and the graphene thermal conductive network layer (10). The shifting mechanism can simultaneously correct the vertical state of the optical lens body (4) in the cage (3). The shifting mechanism includes an adjustment frame (11) that slides through both sides of the retainer (3). The portion of the adjustment frame (11) that passes through the inside of the retainer (3) is close to the curved surface of the optical lens body (4). A disc seat (12) is fixedly sleeved on the outside of the adjustment frame (11). A positioning spring (13) is elastically connected between the disc seat (12) and the retainer (3). The positioning spring (13) is sleeved on the outside of the adjustment frame (11). A rotating frame (14) is rotatably connected to the adjusting frame (11), and an elastic piece (15) is elastically connected between the rotating frame (14) and the retaining frame (3); a protruding rod (17) is fixedly connected to the positioning frame (93), a cylindrical rod (18) is fixedly installed on the protruding rod (17), and a retaining ring (16) that can engage with the cylindrical rod (18) is fixedly installed on the rotating frame (14); When the control positioning frame (93) and the graphene thermally conductive network layer (10) move closer to the retainer (3), the protruding rod (17) and the cylindrical rod (18) fixed on the positioning frame (93) move synchronously. The cylindrical rod (18) moves and engages with the retaining ring (16). When the cylindrical rod (18) continues to move, the retaining ring (16) drives the rotating frame (14) connected to the adjusting frame (11) to rotate. When the rotating frame (14) rotates, it stretches the elastic sheet (15). When the rotating frame (14) rotates, it pushes the adjusting frame (11) to slide through the retainer (3), so that the adjusting frame (11) moves to contact the curved surface of the optical lens body (4). The adjusting frame (11) can push the optical lens body (4) to move closer to the graphene thermally conductive network layer (10) through the curved surface, further pressing the graphene thermally conductive network layer (10) and the optical lens body (4).

2. The optical lens anti-fog detection device based on graphene thermal conductive network according to claim 1, characterized in that: The retainer (3) has three sets of threaded pressure rods (31) connected at equal angles along the central axis. A rubber column (32) is fixedly installed at one end of the threaded pressure rod (31) near the optical lens body (4).

3. The optical lens anti-fog detection device based on graphene thermal conductive network according to claim 1, characterized in that: A primary movable support (95) is slidably connected through the positioning frame (93), and a front pressure ring (96) is fixedly installed on the primary movable support (95). A secondary moving bracket (97) is slidably connected through the positioning base ring (94), and a rear pressure ring (98) is fixedly installed on the secondary moving bracket (97). The front pressure ring (96) and the rear pressure ring (98) are respectively pressed and positioned on the front and rear end faces of the graphene thermally conductive network layer (10).

4. The optical lens anti-fog detection device based on graphene thermal conductive network according to claim 3, characterized in that: The positioning frame (93) is fixedly connected to a primary threaded rod (931), and a primary movable bracket (95) is slidably sleeved on the primary threaded rod (931). The primary threaded rod (931) is externally threaded with a primary nut (932) that limits the movement position of the primary movable bracket (95). A secondary threaded rod (933) is fixedly connected to the positioning frame (93), and a secondary moving bracket (97) is slidably sleeved on the secondary threaded rod (933). A secondary nut (934) is sleeved on the external thread of the secondary threaded rod (933) to limit the movement position of the secondary moving bracket (97). A positioning seat (935) is fixedly installed at the end of the primary threaded rod (931) and the secondary threaded rod (933) away from the positioning frame (93), and the positioning seat (935) is slidably sleeved on the outside of the telescopic rod (92).

5. The optical lens anti-fog detection device based on graphene thermal conductive network according to claim 4, characterized in that: A cylinder (99) is rotatably mounted on the support frame (91). The output end of the cylinder (99) is rotatably connected to the positioning frame (93), and the cylinder (99) is tilted between the support frame (91) and the positioning frame (93).

6. A method for detecting anti-fogging of optical lenses based on graphene thermal conductive networks, characterized in that, The optical lens anti-fog detection device based on graphene thermal conductive network as described in any one of claims 1-5 includes the following steps: S1. The optical lens body (4) is installed and confined in the retainer (3) to keep the laser (5), collimating lens (6), optical lens body (4) and photoelectric sensor (7) in the same plane; S2. Select different graphene thermal conductive network layers (10) with different numbers of layers, full coverage, edge coverage, etc., and install them on different positioning bracket components (9). Move and press the different graphene thermal conductive network layers (10) onto the optical lens body (4) in sequence for comparison and testing. S3. The laser (5) outputs a beam, and the collimating lens (6) calibrates the divergent beam into a parallel beam. The parallel beam passes through the optical lens body (4) and illuminates the photoelectric sensor (7). The photoelectric sensor (7) collects the transmitted light power and image in real time, converts them into electrical signals, and detects the anti-fog effect of the optical lens based on the transmittance.

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