Lens image quality improving device used in severe environment

Abstract

The invention relates to the technical field of lenses, in particular to a lens image quality improving device for a severe environment. A lens image quality improving device for a severe environment comprises a protection frame, a signal control module, a thin lens and a collection bin. The signal control module and the plurality of thin lenses are arranged in the protection frame; the signal control module comprises a signal transmission module and a page turning control module; the page turning control module comprises a transmission assembly, the multiple thin lenses are arranged on the transmission assembly, and the signal control module transmits replacement signals fed back by the lenses to the page turning control module. The page turning control module drives the single thin lens on the outermost side to move out of the light path through the transmission assembly and recover to the collecting bin. The thin lens is replaced through a multi-form trigger mechanism to maintain the quality of an image collected by the lens, improve the definition and durability of the lens, and solve the problem that the definition of the image collected by the lens is affected by environmental factors.

Description

Technical Field

[0001] This invention belongs to the field of lens technology, and specifically relates to a lens image quality improvement device for use in harsh environments. Background Technology

[0002] With the widespread application of camera equipment in various industries for monitoring and surveillance, many of these devices are installed in physically inaccessible locations, difficult to maintain frequently, and in harsh environments. For example, image acquisition equipment operating in harsh environments such as sandstorms, rain, snow, and high humidity often suffers from the accumulation of dust, liquid residue, and physical wear on its lens surface, affecting the quality of the acquired image information. These effects can lead to contamination of the acquired image data, images that do not match reality or fail to meet clarity requirements, or even render the image information unusable and meaningless. Currently, the main protective measure against this problem is to install a fixed protective cover on the lens; however, this static protection method has significant limitations: once the outer surface of the protective structure is covered with contaminants, manual cleaning or replacement is still required. Even with the existing technology of using replaceable thin-film lens protection, the flatness of the thin film can affect the lens's image quality. The thin film itself is easily damaged, and the thin film is usually placed in front of the lens with a gap, making it difficult to prevent dust and dirt from entering and adhering between the thin film and the lens, continuously affecting image clarity. Summary of the Invention

[0003] To address the aforementioned problems in the prior art, this invention provides a lens image quality improvement device for harsh environments. It replaces thin lenses through various triggering mechanisms to maintain the image quality captured by the lens, improve lens sharpness and durability, and solve the problem of environmental factors affecting the image sharpness captured by the lens.

[0004] The objective of this invention can be achieved through the following technical solutions: An image quality improvement device for lenses in harsh environments includes a protective frame, a signal control module, thin lenses, and a collection chamber. The protective frame is located on the upper part of the collection chamber and has through holes on both sides, with one side located at the lens end. The signal control module and several thin lenses are all located within the protective frame. The signal control module includes a signal transmission module and a page-turning control module. The input and output terminals of the transmission module are electrically connected to the internal unit of the lens and the page-turning control module, respectively. The page-turning control module includes a transmission component. Several thin lenses are disposed on the transmission component. The several thin lenses and the two through holes are arranged along the same center line. The signal control module transmits the replacement signal fed back by the lens to the page-turning control module. The page-turning control module drives the outermost single thin lens to detach from the stack and return it to the collection compartment through the transmission component.

[0005] Preferably, the inner wall of the protective frame is lined with a light-absorbing material, specifically black fine velvet.

[0006] Preferably, the transmission component is a page-turning transmission component, and the thin lens is square; the page-turning transmission component includes a transmission shaft, a limiting module, and a limiter; the transmission shaft passes through several magnetic holes of the thin lenses, and the magnetic poles are opposite to form magnetic attraction coupling; the limiting module is located on the side opposite to the transmission shaft, and its length is such that it only blocks the remaining thin lenses other than the outermost thin lens; the limiter is located between several thin lenses and the protective frame.

[0007] Preferably, the transmission component is a rotary transmission element, and the thin lens is circular; the protective frame has an internal cylindrical structure with internal threads; the rotary transmission element includes a transmitter, a drive ring, and a connecting rod; the transmitter is annular cylindrical in shape, with its external thread engaging with the protective frame, and its internal slot for inserting the thin lens; the drive ring is electrically connected to the page-turning control module and rotatably mounted on the protective frame; one end of the connecting rod is fixed to the drive ring, and the other end can slide through the transmitter; the rotational movement of the drive ring and the connecting rod drives the axial displacement of the transmitter.

[0008] Preferably, the inner wall of the protective frame is lined with a light-absorbing material, specifically black fine velvet.

[0009] Preferably, based on the above-described lens image quality improvement device for harsh environments, a lens image quality improvement method using the above-described device is also proposed, comprising the following steps: Step S1: Install the device onto the lens. The thin lens is stacked and covers the hard transparent lens in front of the lens. The protective frame is sealed to the lens end.

[0010] Step S2: The outermost thin lens replaces the lens to block various environmental stains from directly contaminating the lens's light-transmitting elements. The outermost thin lens gradually becomes contaminated over time. Step S3: The lens detects the degree of contamination of the outermost thin lens and feeds it back to the internal unit of the lens to trigger the page-turning control module. The transmission component rotates and drives the thin lens to move axially, pushing the new thin lens to the working position. At the same time, the contaminated thin lens is removed from the slot and slides into the collection chamber to complete the automatic replacement. Step S4: The power source is triggered to drive the transmission component device. The transmission component moves to release the first layer of contaminated thin lens that is currently at the front of the lens. The contaminated thin lens rotates to the bottom of the device due to gravity, and the top of the stacked thin lenses is updated to a new thin lens. The number of stacked thin lenses 4 is reduced by one, and the state returns to S2. Step S5: The replaceable thin lens stack is used up. The contaminated thin lens is recovered on site and replaced with a clean thin lens stack. The contaminated thin lens can be cleaned and recycled. The status returns to S1.

[0011] Preferably, step S3 further includes step S31: the triggering mechanism includes an automatic algorithm to identify the clarity of the image by lens recognition, and if the thin lens contamination described in S2 affects the image acquisition, S4 is automatically triggered.

[0012] Preferably, step S3 further includes step S32: the triggering mechanism includes manually monitoring the captured image and discovering that the thin lens contamination described in S2 affects the image capture, and then manually triggering S4 by the remote control device.

[0013] Preferably, step S3 further includes step S33: the triggering mechanism also includes a timer, which automatically triggers S4 at regular intervals, so the timing of step S5 can be planned regularly.

[0014] The beneficial effects of this invention are as follows: 1. By incorporating an automatically replaceable thin lens group external to the lens, the continuity and clarity of image acquisition can be significantly improved in harsh environments. When the image quality deteriorates due to lens contamination or wear, an automatic replacement mechanism is triggered based on image feedback signals. The transmission component quickly removes the contaminated thin lens, ensuring a clear imaging optical path. The entire process requires no manual intervention or opening of the protective structure, effectively preventing the intrusion of external dust, moisture, and other impurities. This provides continuous and reliable protection for the lens and ensures stable operation of the image acquisition equipment in harsh environments such as sandstorms, rain, snow, and high humidity, greatly expanding its applicable scenarios and service life.

[0015] 2. The number of thin lenses stacked can be flexibly selected according to light transmittance and imaging requirements; the inner wall of the protective frame is covered with light-absorbing material, effectively suppressing stray light and refraction problems caused by the stacking of multiple thin lenses, ensuring image quality. Two transmission methods—flip-type and rotary—enable precise and rapid replacement of thin lenses. Damaged thin lenses are uniformly collected in the collection bin for centralized cleaning and reuse. The overall structure is reliably sealed, and the operation of loading new thin lens groups is simple, requiring no special tools, significantly improving the ease of use and maintenance efficiency of the equipment. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a structural diagram of the initial state of the page-turning transmission component of the present invention; Figure 2 This is a structural diagram of the trigger state of the page-turning transmission component of the present invention; Figure 3 This is a structural diagram of the page-turning transmission component of the present invention in its final state. Figure 4 This is a schematic diagram of the overall rotary transmission component of the present invention; Figure 5 This is a structural diagram of the initial state of the rotary transmission component of the present invention; Figure 6 This is a structural diagram of the trigger state of the rotary transmission component of the present invention; Figure 7 This is a structural diagram of the rotary transmission component of the present invention in its final state. Figure 8 This is a cross-sectional view of the page-turning transmission component of the present invention; Figure 9 This is a cross-sectional view of the rotary transmission component of the present invention; Legend: 1. Protective frame; 21. Fastening frame; 31. Drive ring; 32. Connecting rod; 4. Thin lens. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0019] Example 1: refer to Figures 1-9As shown, a lens image quality improvement device for harsh environments includes a protective frame 1, a signal control module, thin lenses, and a collection chamber. The protective frame 1 has through holes on both sides, with the lens end penetrating one side, placing the lens end inside the protective frame 1. A seal is used between the lens end and the protective frame 1 to prevent liquids, dust, and dirt from entering. The protective frame 1 provides lens enclosure; unlike thin-film replacement methods, it also offers fully enclosed protection, providing waterproof and dustproof protection for the lens, thus additionally protecting it. The signal control module and several thin lenses 4 are all housed within the protective frame 1. The signal control module includes interconnected... The system includes a signal transmission module and a page-turning control module. The input and output terminals of the signal transmission module are electrically connected to the lens and the page-turning control module, respectively. The input terminal of the signal transmission module is connected to the internal unit of the lens, and the output terminal of the signal transmission module is connected to the input terminal of the page-turning control module. The page-turning module controls the transmission assembly. Several thin lenses 4 are located on the transmission assembly. The thin lenses 4 and two through holes are arranged along the same center line. The signal control module transmits the replacement signal from the lens to the page-turning control module. The page-turning control module drives the thin lenses 4 to complete the replacement task through the transmission assembly. The collection compartment stores the replaced thin lenses 4. During the replacement process, the spiral component drives the page-turning component to move along the center line.

[0020] Because the lens is located in a harsh environment, the lens surface may become contaminated or worn, affecting the image acquisition quality. When the image is blurred or obstructed due to environmental factors, the image information acquired by the lens in real time is fed back to the internal unit of the lens to execute the trigger mechanism process, and thus a replacement signal is fed back. The signal transmission module receives the replacement signal from the internal unit of the lens and sends a start signal to the page turning control module. The transmission component starts to drive several preset thin lenses 4 to move, replacing the outermost single thin lens 4 that is far away from the lens and close to the outside of the protective frame 1. Then, the replaced outermost thin lens 4 takes over, completing the replacement of the thin lens 4. This effectively ensures the continuity and clarity of image acquisition in harsh environments.

[0021] Because several thin lenses 4 are stacked in a concentric circle arrangement and there is a micro-gap between adjacent thin lenses, it is ensured that they do not rub against each other and be damaged during transmission. However, this also causes refraction between the thin lenses 4 and the superposition of the thin lenses 4, which affects the image quality. Therefore, referring to the problem of reducing superposition refraction of multiple lenses inside a camera lens, light-absorbing material (such as black fine velvet) is placed around the space of the stacked thin lenses 4 in front of the lens (i.e., the inner wall of the protective frame 1). This design can effectively prevent the superposition of multiple thin lenses and the reflection and scattering teeth when light enters, thereby overcoming the refraction problem. In addition, the total number of thin lenses 4 stacked at one time should not be too many. It needs to be considered according to the light transmittance of the thin lenses 4 themselves and the image quality requirements of the visual acquisition device itself. For thin lenses 4 with good transmittance, referring to the camera lens design, the stacking of about 20 sufficiently thin flat thin lenses has little impact on the final image quality of the acquisition device. The above are all problems caused by the stacking of thin lenses 4 that can be eliminated by existing technology.

[0022] In one embodiment, the transmission assembly comes in two forms, differing only in the way it achieves transmission. Regarding the two interchangeable forms, refer to... Figure 8 As shown, the protective frame 1 also has different internal structures, namely a square hollow structure and a cylindrical structure. The square hollow structure has a groove and a fastening plate on the outside to form a narrow outer and wide inner shape. The cylindrical structure has threads inside. Since the thin lens 4 is a mature existing technology, the thin lens 4 has a low cost and its performance can be customized. Therefore, the thin lens 4 is also divided into square and round shapes. The transmission components include a page-turning transmission component and a rotation transmission component. The page-turning transmission component is used to push only the outermost single thin lens 4 to move axially, while the rotation transmission component drives the stacked thin lenses to make circumferential micro-adjustments. At the same time, it can complete the rapid replacement in a sealed environment to prevent the intrusion of external impurities. In addition, the contaminated thin lens 4 can be collected in the collection chamber. The replaced filter stack can be reused multiple times after cleaning, avoiding material waste.

[0023] For details, please refer to Figures 1-3As shown, the page-turning transmission component includes a drive shaft, a page-turning control handle, a limit module, and a limiter. The thin lens 4 has a square structure with a magnetic hole at the lower end of one side. The drive shaft is located inside the protective frame 1, with one end connected to the drive source. The shaft body is located within several magnetic holes, and the magnetic poles of the drive shaft body and the magnetic holes are different, achieving magnetic attraction. The drive source is electrically connected to the page-turning control module. The drive source can be a servo motor driven using existing technology. The limit module is located on the opposite side of the rotation shaft to constrain the movement trajectory of the thin lens 4. The length of the limit module is less than the stacked thickness of the thin lenses 4, that is... The length of the limiting module is only sufficient to block the outermost thin lens 4. Therefore, after being triggered by the control module signal, the drive shaft magnetically attracts and drives the square thin lens 4 to rotate synchronously. The protective frame 1 has a gap groove at the end furthest from the lens, cutting off three sides of the protective frame 1, leaving only the side closest to the rotating shaft for support. The gap of this groove is exactly close to the thickness of the dirty thin lens 4. When the thin lens 4 is not replaced, its frame tightly fits into this gap to achieve a seal, isolating it from external environmental interference. The stacked thin lenses 4 are within the limiting module... The blocks remain stationary, with only the outermost square thin lens 4 being magnetically attracted by the drive shaft to complete the flipping action and fall into the collection chamber for quick replacement. Additionally, in this assembly, the collection chamber also has a vertical slot on one side of the gap groove; the flipped square thin lens 4 enters the collection chamber through this slot. After flipping, a limiter is positioned between the thin lens 4 and the protective frame 1 and is controlled by the page-flipping control module. The limiter, under control, pushes the stacked thin lenses 4 outwards as a whole, with a new thin lens 4 replacing the flipped dirty thin lens 4. The dirty thin lens 4 falling into the collection chamber is pushed by the limiter... When the magnetic hole disengages from the rotating shaft, the page-turning control module stops, ensuring smooth operation during the next replacement. When a new set of thin lenses 4 needs to be loaded, the limiter resets, the locking frame 21 opens, and the magnetic holes of several thin lenses 4 are equipped with page-turning control handles diagonally for easy manual handling. The magnetic holes of a new set of thin lenses 4 are pushed into the rotating shaft to complete magnetic coupling with the transmission shaft. After the locking frame 21 closes, the installation is complete. The entire process requires no tools and is easy to operate. The newly loaded set of thin lenses 4 is automatically positioned under the push of the limiter, ensuring accurate and consistent positioning each time it is replaced.

[0024] For details, please refer to Figures 4-9As shown, the rotary transmission component includes a transmitter, a connecting rod 32, and a drive ring 31. The transmitter is an annular cylindrical shape, with its outer side threadedly connected to the protective frame 1. Light-absorbing material is embedded inside the transmitter. Both the transmitter and the collection chamber slightly protrude from the protective frame 1. A slit is opened on the upper side of the collection chamber, and several slots are intermittently opened on the upper side of the transmitter. In this transmission configuration, the thin lens 4 is circular, with several slots for insertion. The slot positions correspond one-to-one with the stacking positions of the thin lenses 4. The thickness of the thin lens is consistent with the width of the slot gaps in the transmitter. The drive ring 31 is fitted inside the protective frame 1 and coaxially arranged with the transmitter. The drive ring 31 is electrically driven by the page-turning control module. One end of the connecting rod 32 is fixed to the drive ring 31. The connecting rod 32 axially penetrates and inserts into the side wall of the transmitter, without affecting the insertion of the thin lens 4 into the slot. When the drive ring 31 rotates... The connecting rod 32 drives the actuator to rotate. The actuator, through its threaded connection with the protective frame 1, converts this into axial displacement, thereby pushing the stacked circular thin lenses 4 to move axially as a whole. After the slots leave the range of the protective frame 1 during the actuator's rotation, they gradually rotate to align with the cut in the collection chamber. When a single circular thin lens 4 leaves the slot, it slides into the collection chamber through the cut under the influence of gravity, completing the recycling of the contaminated thin lenses 4 and achieving individual replacement. Each axial displacement of the actuator changes its position. As the contaminated lens is recycled to the last one, the end of the actuator near the lens is located at the end of the protective frame 1 away from the lens. Finally, when a new set of circular thin lenses 4 needs to be reloaded, the new thin lenses 4 are inserted into several slots on the actuator. Finally, the actuator is rotated in the opposite direction to reset its axial position. During the rotation, the new lenses are limited; otherwise, they fall off.

[0025] Based on the above-described lens image quality improvement device for harsh environments, a lens image quality improvement method using the above-described device is also proposed, comprising the following steps: Step S1: Install the device onto the lens. The thin lens 4 is stacked and covers the hard transparent lens in front of the lens. The protective frame 1 is sealed to the lens end.

[0026] Step S2: The outermost thin lens 4 replaces the lens to block various environmental stains from directly contaminating the lens's light-transmitting elements. The outermost thin lens 4 gradually becomes contaminated over time. Step S3: The lens detects the degree of contamination of the outermost thin lens 4 and feeds it back to the internal unit of the lens for triggering mechanism judgment. This triggers the page turning control module, and the transmission component rotates to drive the thin lens 4 to move axially, pushing the new thin lens 4 to the working position. At the same time, the contaminated thin lens 4 is removed from the slot and slides into the collection chamber to complete the automatic replacement. Step S4: The power source is triggered to drive the transmission component device. The transmission component moves to release the first layer of contaminated thin lens 4 that is currently at the front of the lens. The contaminated thin lens 4 rotates to the bottom of the device due to gravity, and the top of the stacked thin lenses 4 is updated to be a new thin lens 4. The number of stacked thin lenses 4 is reduced by one, and the state returns to S2. Step S5: The replaceable thin lens 4 stack is consumed. The contaminated thin lens 4 is recovered on site and replaced with a clean thin lens 4 stack into the equipment. The contaminated lens can be cleaned and recycled. The status returns to S1.

[0027] Furthermore, this method combines real-time monitoring with automatic execution to achieve dynamic replacement of the lens at the front end of the lens, ensuring continuous and stable image quality in complex environments. It is applied to technologies such as machine vision and deep learning to achieve intelligent pollution situation determination. For example, if the lens is located in a critical monitoring area, the image clarity of the lens is crucial for subsequent searches. To ensure clarity during subsequent searches, the impact of accumulated environmental factors on lens clarity is eliminated. Additionally, considering that manual intervention may be needed to adjust the clarity to the optimal level during emergencies, and that constant image recognition could shorten the lens's lifespan when used in high-dust workshops, a timer is included. A simple timer triggering mechanism reduces the need for image recognition. Step S3 also includes step S31: The triggering mechanism includes using an automatic algorithm to identify the clarity of the lens recognition image, and if it finds that the thin lens 4 contamination described in S2 affects the image acquisition, it will automatically trigger S4. The replacement procedure is automatically initiated upon identifying a specific type or threshold of contamination, providing a basis for subsequent maintenance and optimization, extending lens lifespan, and reducing the frequency of manual intervention. Step S3 also includes step S32: The triggering mechanism also includes manually monitoring the captured image and discovering that the thin lens 4 contamination described in S2 affects the image capture, and manually triggering S4 by the remote control device. In step S3, there is also step S33: the triggering mechanism also includes a timer, which automatically triggers S4 at regular intervals, so the timing of step S5 is regular and can be planned.

[0028] Steps S31, S32, and S33 above can be used individually or in combination. The trigger mode can be flexibly configured according to the actual application scenario to ensure timely response to thin lens contamination under different environmental conditions. Multi-level contamination determination is supported, and the replacement strategy is dynamically adjusted based on image quality feedback to improve maintenance efficiency. The entire replacement process does not require lens disassembly, achieving non-contact automatic page turning and retrieval, ensuring continuous equipment operation.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lens image quality improvement device for harsh environments, characterized in that: The device includes a protective frame, a signal control module, thin lenses, and a collection chamber. The protective frame is located on top of the collection chamber and has through holes on both sides, with one side located at the lens end. The signal control module and several thin lenses are all located within the protective frame. The signal control module includes a signal transmission module and a page-turning control module. The input and output ends of the transmission module are electrically connected to the internal unit of the lens and the page-turning control module, respectively. The page-turning control module includes a transmission assembly, and several thin lenses are located on the transmission assembly. The thin lenses and two through holes are arranged along the same center line. The signal control module transmits the replacement signal from the lens to the page-turning control module. The page-turning control module, through the transmission assembly, drives the outermost single thin lens to detach from the stack and return it to the collection chamber.

2. The lens image quality improvement device for harsh environments according to claim 1, characterized in that: The inner wall of the protective frame is lined with a light-absorbing material, specifically black fine velvet.

3. The lens image quality improvement device for harsh environments according to claim 1, characterized in that: The transmission component is a page-turning transmission component, and the thin lens is square. The page-turning transmission component includes a transmission shaft, a limiting module, and a limiter. The transmission shaft passes through several magnetic holes of the thin lenses, and the magnetic poles are opposite to form magnetic attraction coupling. The limiting module is located on the side opposite to the transmission shaft, and its length is such that it only blocks the remaining thin lenses other than the outermost thin lens. The limiter is located between several thin lenses and the protective frame.

4. The lens image quality improvement device for harsh environments according to claim 1, characterized in that: The transmission component is a rotary transmission element, and the thin lens is circular. The protective frame has an internal cylindrical structure with internal threads. The rotary transmission element includes a transmitter, a drive ring, and a connecting rod. The transmitter is annular and cylindrical, with its external thread engaging with the protective frame and its internal slot for inserting the thin lens. The drive ring is electrically connected to the page-turning control module and is rotatably mounted on the protective frame. One end of the connecting rod is fixed to the drive ring, and the other end can slide through the transmitter. The rotational movement of the drive ring and the connecting rod drives the axial displacement of the transmitter.

5. A method for improving lens image quality, used in the lens image quality improvement device for harsh environments as described in claim 1, characterized in that, Includes the following steps: Step S1: Install this device onto the lens. The transparent thin lens is stacked and covered on the hard transparent lens in front of the lens. The protective frame is sealed to the lens end. Step S2: The outermost thin lens replaces the lens to block various environmental stains from directly contaminating the lens's light-transmitting elements. The outermost thin lens gradually becomes contaminated over time. Step S3: The lens detects the degree of contamination of the outermost thin lens and feeds it back to the internal unit of the lens for triggering mechanism judgment. This triggers the page turning control module, and the transmission component rotates to drive the thin lens 4 to move axially, pushing the new thin lens 4 to the working position. At the same time, the contaminated thin lens 4 disengages from the slot and slides into the collection chamber to complete the automatic replacement. Step S4: The power source is triggered to drive the transmission component device. The transmission component moves to release the first layer of contaminated thin lens that is currently at the front of the lens. The contaminated thin lens rotates to the bottom of the device due to gravity, and the top of the stacked thin lenses is updated to a new thin lens. The number of stacked thin lenses is reduced by one, and the state returns to S2. Step S5: The replaceable thin lens stack is used up. The contaminated thin lens is recovered on site and replaced with a clean thin lens stack. The contaminated thin lens can be cleaned and recycled. The status returns to S1.

6. The method for improving lens image quality according to claim 5 further includes the following steps: Based on step S3, there is also step S31: the triggering mechanism includes using an automatic algorithm to identify the clarity of the lens recognition image, and if it finds that the thin lens contamination described in S2 affects the image acquisition, it will automatically trigger S4.

7. The method for improving lens image quality according to claim 5 further includes the following steps: Based on step S3, step S32 is also included: the triggering mechanism also includes manually monitoring the acquired image and discovering that the thin lens contamination described in S2 affects the image acquisition, and the manual remote control device triggers S4.

8. The method for improving lens image quality according to claim 5 further includes the following steps: Based on step S3, step S33 is also included: the triggering mechanism also includes a timer, which automatically triggers S4 at regular intervals, so the timing of step S5 is regular and can be planned.

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