Combined lens, positioning support member, and field-of-view registration method and system for ultraviolet lens imaging and visible light lens imaging

Abstract

The invention provides a combined lens, a positioning support member, and a field-of-view registration method and system for ultraviolet lens imaging and visible light lens imaging, and the system comprises a main visible light imaging lens, an ultraviolet imaging lens, and an auxiliary registration imaging lens, and ensures the registration of the visual centers of the auxiliary registration imaging lens and the ultraviolet imaging lens. On the premise that the main visible light imaging lens and the auxiliary registration imaging lens are overlapped, image data of the main visible light imaging lens and the auxiliary registration imaging lens are collected, a high-level feature map of the image data is extracted through DeepLabv3Plus, the relative translation angle and the relative rotation angle of the main visible light imaging lens and the auxiliary registration imaging lens are calculated, and the image data of the main visible light imaging lens and the auxiliary registration imaging lens are obtained. And corresponding information of the main visible light imaging lens and the ultraviolet imaging lens is migrated. The miniature lens is added to serve as an auxiliary registration imaging lens, registration of an ultraviolet imaging view field and a visible light imaging view field is achieved in an indirect mode, and a user can discover an ultraviolet signal and accurately position a signal source.

Description

Technical Field

[0001] The present invention relates to the field of image processing technology, and specifically, it shows a combined lens, a positioning support, a method and a system for field of view registration of ultraviolet lens imaging and visible light lens imaging. Background Art

[0002] The ultraviolet imaging method uses special instruments to receive the ultraviolet signal emitted by corona discharge, and after special processing, it overlaps with the visible light image. By combining the two images, the location of the corona discharge and the severity of the discharge can be clearly seen. The detection band of the ultraviolet detection instrument is usually selected in the solar blind area, and the strength of the discharge of the power equipment is determined by detecting the ultraviolet rays of this wavelength. "Solar blind" refers to a specific spectral band (240nm~280nm) in the ultraviolet light band. This band is not affected by solar radiation, that is, it is insensitive to solar radiation. In this band, the ultraviolet radiation of the sun is almost completely absorbed by the ozone layer, and the amount of ultraviolet light transmitted by the sun is extremely low, so the detected ultraviolet light is emitted by the discharge of the charged equipment. Taking advantage of the characteristic that the ultraviolet light emitted by the "solar blind" target is stronger than the solar ultraviolet radiation, the ultraviolet target signal of this band can be observed and detected by the ultraviolet imager, and the ultraviolet signal is converted into a visible image signal for analysis and measurement, so as to determine whether there is discharge in the high-voltage power transmission and transformation equipment. The spectrum comparison of corona discharge ultraviolet light and visible light is as follows Figure 1 shown.

[0003] The UV imager consists of a lens system, a filter, a light sensor, a control and analysis system, and an image display system. The detection principle of the UV imager is as follows: Figure 2 As shown in the figure, the visible light lens takes a visible light image of the corona target, the filter filters out the light waves outside the "solar blindness", and the ultraviolet lens performs ultraviolet light imaging on the light waves filtered out by the filter; the light sensor performs photoelectric conversion on the corona image, the control and analysis system analyzes the intensity of the light, and controls the entire detection system; the image display system fuses and displays the two types of image information, and analyzes the mixed imaging information to determine the specific situation of the target discharge.

[0004] UV detection technology has the following characteristics:

[0005] (1) When testing power equipment, there is no need to shut down the power supply and stop other equipment from running. The discharge condition of the power equipment under real operating conditions can also be restored.

[0006] (2) UV discharge detection does not require high-altitude work, and electrical equipment can be tested at a distance to ensure the personal safety of the testers;

[0007] (3) Collect basic data such as pictures and images generated by ultraviolet detection to form a basis for judging the strength of discharge, facilitate the status management and status maintenance of the power system, and provide a reliable theoretical basis for future regular maintenance.

[0008] There are two common methods for fusing ultraviolet images with visible light images: the first method is to deflect the visible light by 90 degrees through a beam splitter, while the ultraviolet light can pass through the beam splitter without changing direction. At this time, the visible light camera and the ultraviolet light camera are arranged at an angle of 90 degrees to achieve the display effect of the optical axes of the visible light and the ultraviolet light coinciding with each other; the second method is to arrange the visible light camera and the ultraviolet camera in parallel.

[0009] The advantage of method one is that it can achieve high-precision fusion and superposition effects at any observation distance. The disadvantage is that the layout of the beam splitter and the camera after the optical path is deflected will take up a lot of space, which ultimately makes it impossible to miniaturize the product.

[0010] The advantage of method 2 is that it is conducive to product miniaturization and can be applied to drones. However, due to the existence of the baseline distance between the center points of the two camera lenses, the center point of the visible light image is never the center point of the ultraviolet light image. Assuming that the optical axes of the two are infinitely close to parallel, the closer the distance, the higher the pixel value of the offset of the center points of the two images on the photo. This will cause observation deviations on the product side, so the usual practice is to calibrate at the commonly used observation distance and compensate for the offset through software. The problem caused by this operation is that the camera calibrated at 10 meters cannot always maintain 10 meters shooting in actual use, and the images taken at other distances have deviations, resulting in inaccurate positioning of the ultraviolet signal source. Summary of the invention

[0011] In view of this, the purpose of the present invention is to provide a combined lens, a positioning support, a field of view alignment method and an alignment system for ultraviolet lens imaging and visible light lens imaging, so as to solve the problem of inaccurate positioning of ultraviolet signal sources in existing ultraviolet detection applications.

[0012] One of the technical solutions is as follows:

[0013] A method for field of view registration of ultraviolet lens imaging and visible light lens imaging comprises the following steps:

[0014] a) selecting a main visible light imaging lens (C1), selecting an ultraviolet imaging lens (UV1), and selecting a micro lens as an auxiliary registration imaging lens (C2), fixing the auxiliary registration imaging lens (C2) at the center position in front of the ultraviolet imaging lens (UV1) through a positioning support, and realizing visual center registration of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1);

[0015] b) Under the premise of ensuring that the images captured by the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) overlap, respectively collecting image data of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2);

[0016] c) Using the trained DeepLabv3Plus model, high-level feature maps of the image data collected by the main visible light imaging lens (C1) and the image data collected by the auxiliary registration imaging lens (C2) are extracted, respectively, and recorded as F1 and F2;

[0017] d) Perform Fourier transform on F1 and F2 respectively to obtain frequency domain feature maps of the high-level feature map, which are recorded as A1 and A2 respectively. The frequency domain feature map contains the amplitude and phase information of the high-level feature layer;

[0018] e) performing a cross-power spectrum calculation on A1 and A2, further performing an inverse Fourier transform, and obtaining the relative translation of the two images by searching for the peak value, that is, obtaining the relative translation of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2);

[0019] f) The frequency domain feature map can be split into an amplitude spectrum and a phase spectrum. The amplitude spectrum of A1 and the amplitude spectrum of A2 are transformed into log polar coordinates to obtain the log polar coordinate images of the amplitude spectrum, which are recorded as L1 and L2 respectively;

[0020] g) calculating the cross-correlation function of L1 and L2, obtaining the maximum value point, extracting the polar angle information of the maximum value point, that is, obtaining the relative rotation angle between the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2);

[0021] h) The relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) are equivalent to the relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1), and the registration information is calculated by combining the field of view angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1).

[0022] Furthermore, in step a, the positioning support member comprises a rigid fixing portion and an extended support portion, the extended support portion horizontally extends outward from one side of the rigid fixing portion, the rigid fixing portion is detachably connected to the main structure of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is fixedly arranged at the end of the extended support portion, so that the auxiliary registration imaging lens (C2) is located at the center position directly in front of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is as close to the ultraviolet imaging lens (UV1) as possible.

[0023] Furthermore, in step a, the auxiliary registration imaging lens (C2) is placed at the center position directly in front of the ultraviolet imaging lens (UV1) by calibrating the fields of view of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) using a multi-point ultraviolet light source calibration method.

[0024] Furthermore, in step b: it is ensured that the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) have an overlap of no less than 50%.

[0025] Furthermore, in step c: the DeepLabv3Plus model is a pre-trained deep neural network model. When the deep neural network model is deployed, it is necessary to remove the last individual layers of the network so that the network can output image features.

[0026] Another object of the present invention is to provide a field of view alignment system for ultraviolet imaging and visible light imaging, comprising a main visible light imaging lens (C1), an auxiliary alignment imaging lens (C2), and an ultraviolet imaging lens (UV1), wherein the size of the auxiliary alignment imaging lens (C2) is smaller than that of the ultraviolet imaging lens (UV1), the auxiliary alignment imaging lens (C2) is fixed at the center position in front of the ultraviolet imaging lens (UV1) through a positioning support (10), the auxiliary alignment imaging lens (C2) and the ultraviolet imaging lens (UV1) are integrated, and the main visible light imaging lens (C1), the auxiliary alignment imaging lens (C2) and the ultraviolet imaging lens (UV1) are arranged in parallel.

[0027] The positioning support member (10) comprises a rigid fixing portion (101) and an extended support portion (102), wherein the extended support portion (102) extends horizontally outward from one side of the rigid fixing portion (101), the rigid fixing portion (101) is connected to the main structure of the ultraviolet imaging lens (UV1), and the extended support portion (102) is connected to the auxiliary registration imaging lens (C2).

[0028] Another object of the present invention is to provide a combined lens, comprising an ultraviolet imaging lens (UV1) and an auxiliary registration imaging lens (C2), wherein the size of the auxiliary registration imaging lens (C2) is smaller than that of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is arranged at a central position in front of the ultraviolet imaging lens (UV1), wherein the combined lens is arranged to execute the above-mentioned field of view registration method.

[0029] Another object of the present invention is to provide a positioning support member, comprising a rigid fixing portion (101) and an extension support portion (102), wherein the extension support portion (102) extends horizontally outward from a middle side of the rigid fixing portion (101), wherein the positioning support member is configured to be used to assemble the combined lens as described above, the rigid fixing portion (101) is used to connect an ultraviolet imaging lens (UV1), and the extension support portion (102) is used to connect an auxiliary registration imaging lens (C2).

[0030] Compared with the prior art, the beneficial effect of the present invention is that the present invention adds a micro lens as an auxiliary registration imaging lens, and realizes the registration of the ultraviolet imaging field of view and the visible light imaging field of view in an indirect form, so that the user can not only detect the ultraviolet signal, but also accurately locate the signal source. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram showing the spectrum comparison of corona discharge ultraviolet light and visible light is shown;

[0032] Figure 2 The schematic diagram of the detection principle of the current ultraviolet imager is shown;

[0033] Figure 3 It is a schematic diagram of the rigid fixation of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) of the present invention;

[0034] Figure 4 It is a simplified schematic diagram of a field of view registration system for ultraviolet lens imaging and visible light lens imaging according to the present invention;

[0035] Figure 5 It is a simplified schematic diagram of the multi-point ultraviolet light source calibration method of the present invention;

[0036] Figure 6 is a neural network structure diagram of the DeepLabv3Plus model described in the present invention;

[0037] Relevant marks in the accompanying drawings: C1-main visible light imaging lens, C2-auxiliary registration imaging lens, UV1-ultraviolet imaging lens, 10-positioning support, 101-rigid fixing part, 102-extension support part. DETAILED DESCRIPTION

[0038] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] The method for field of view registration of ultraviolet lens imaging and visible light lens imaging provided in the embodiment of the present application has the following specific implementation steps:

[0040] The first preparation is to build a registration system:

[0041] A main visible light imaging lens (C1), an ultraviolet imaging lens (UV1), and a micro lens are selected as an auxiliary registration imaging lens (C2), and the auxiliary registration imaging lens (C2) is fixed at the center position in front of the ultraviolet imaging lens (UV1) through a positioning support to achieve visual center registration of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1), that is, to ensure that the centers of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) are on the same straight line.

[0042] The selection principle of the miniature lens is first to ensure its small size so that it will not produce unnecessary imaging interference when it is close to other presentation lenses. Another principle is to ensure its high imaging quality. The requirement is that it must have sufficient image resolution and spatial resolution. A miniature image acquisition lens with a resolution of 1280*720 can be selected. When selecting, use the ISO12233 resolution test card for testing to ensure that the resolution requirements are met.

[0043] like Figure 3 As shown, the positioning support member 10 described in this embodiment presents a "T"-shaped structure as a whole, which includes a rigid fixing portion 101 and an extended support portion 102. The extended support portion extends horizontally outward from the middle side of the rigid fixing portion. The rigid fixing portion 101 can be connected to the main structure of the ultraviolet imaging lens (UV1) in a detachable connection form (such as a screw connection). The positioning support member can be made of an integral molding process of aluminum alloy, magnesium alloy, etc., or it can be made of PCB processing and covered with a thicker copper layer on the other side.

[0044] The auxiliary registration imaging lens (C2) is fixedly mounted at the end of the extension support portion 102, so that the auxiliary registration imaging lens (C2) is located at the center position directly in front of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is as close to the glass of the ultraviolet imaging lens (UV1) as possible.

[0045] After ensuring that the visual centers of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) are aligned, the relative position between the two cannot be easily changed. Therefore, it is necessary to calibrate the visual centers of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1). In this embodiment, the field of view of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) is calibrated by a multi-point ultraviolet light source calibration method.

[0046] The multi-point UV light source calibration method is to set up multiple UV light sources and distribute them at a certain distance in front of the UV imaging lens (UV1) according to certain rules, and achieve visual center coincidence by matching the UV imaging spot with the visible light source position of the auxiliary registration imaging lens (C2). Figure 5As shown, a planar stereoscopic bracket structure is generally designed, and multiple ultraviolet light sources (alcohol lamps can be used as ultraviolet light sources) are arranged on the bracket according to a certain pattern. The planar stereoscopic bracket is installed about 5 to 10 meters away from the ultraviolet imaging lens (UV1) to ensure that all the flames of the alcohol lamps can be seen from the imaging of the auxiliary alignment imaging lens (C2), and that a stable light spot can be seen from the imaging of the ultraviolet imaging lens (UV1), so that the visual center coincidence can be achieved.

[0047] After completing the above preparations, the next step is to align the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1).

[0048] like Figure 4 As shown in the figure, through certain constraints, it is ensured that the images captured by the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) can have an overlap of no less than 50%, that is, it is ensured that they are shot in a nearly parallel manner from top to bottom. As a prerequisite, the image data of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) are collected once, and the high-level feature maps of the main visible light imaging lens (C1) image and the auxiliary registration imaging lens (C2) image are extracted using the trained DeepLabv3Plus, which are recorded as F1 and F2 respectively. F1 and F2 can also be regarded as two incomprehensible images. Figure 6 Shown is the neural network structure diagram of DeepLabv3Plus. DeepLabv3Plus is a pre-trained deep neural network model. Its training data includes images collected by C1 and C2. The training data adopts the method of alternating comparison between C1 and C2. The training loss adds the relative scaling, offset and rotation factors of C1 imaging images and C2 imaging images. When the deep neural network model is deployed, it is necessary to remove the last individual layers of the network so that the network can output image features.

[0049] Fourier transform is performed on the high-level feature maps F1 and F2 respectively to obtain the frequency domain feature maps of the high-level feature maps, which are recorded as A1 and A2 respectively. The frequency domain feature map contains the amplitude and phase information of the high-level feature layer. The calculation method can refer to the following formula:

[0050]

[0051] The cross power spectrum of the frequency domain feature images A1 and A2 is calculated, and the inverse Fourier transform (phase correlation) is further performed. The relative translation ω of the two images is obtained by searching for the peak value, that is, the relative translation of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) is obtained. The cross power spectrum calculation can refer to the following formula:

[0052] C fg (u,v)=F(u,v)·G * (u,v)

[0053] Where F and G are the Fourier transforms of the two frequency domain feature maps, G * (u,v) is the complex conjugate of the Fourier transform.

[0054] The calculation method of inverse Fourier transform can refer to the following formula:

[0055]

[0056] The frequency domain feature map can be split into an amplitude spectrum and a phase spectrum. The amplitude spectrum of A1 and the amplitude spectrum of A2 are transformed into log-polar coordinates to obtain the log-polar coordinate images of the amplitude spectrum, which are denoted as L1 and L2 respectively. The abscissa of the log-polar coordinate image represents the polar logarithmic distance, and the ordinate represents the polar angle.

[0057] The L1 and L2 images are cross-correlated to obtain their vertical translation h, and the relative rotation of A1 and A2 is obtained through transformation. Specifically, the cross-correlation function of L1 and L2 is calculated to obtain the maximum value point, and the polar angle information of the maximum value point is extracted, that is, the relative rotation angle of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) is obtained.

[0058] The relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) are equivalent to the relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1), and the registration information is calculated by combining the field of view angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1).

[0059] According to the above preparation work, the visual centers of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) are regarded as overlapping, and after the above registration work, the visual centers of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) are also aligned to overlap. Therefore, it can be seen that the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1) are also indirectly aligned to overlap.

[0060] When the field of view angle of the ultraviolet imaging lens (UV1) (determined by the photosensitive element) and the field of view angle of the main visible light imaging lens (C1) are known, the field of view alignment information at the pixel level is further realized by performing a certain scaling on the ultraviolet imaging lens (UV1).

[0061] In this way, by collecting images of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1) in real time, and combining the relative translation information and relative rotation angle information obtained in the above steps, and based on image fusion technology, it is possible to achieve real-time same-screen display of visible light imaging and ultraviolet imaging after registration.

[0062] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for field of view registration of ultraviolet lens imaging and visible light lens imaging, characterized in that: The steps include: a) selecting a main visible light imaging lens (C1), selecting an ultraviolet imaging lens (UV1), and selecting a micro lens as an auxiliary registration imaging lens (C2), fixing the auxiliary registration imaging lens (C2) at the center position in front of the ultraviolet imaging lens (UV1) through a positioning support (10), so as to achieve visual center registration of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1); b) Under the premise of ensuring that the images captured by the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) overlap, respectively collecting image data of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2); c) Using the trained DeepLabv3Plus model, high-level feature maps of the image data collected by the main visible light imaging lens (C1) and the image data collected by the auxiliary registration imaging lens (C2) are extracted, respectively, and recorded as F1 and F2; d) Perform Fourier transform on F1 and F2 respectively to obtain frequency domain feature maps of the high-level feature map, which are recorded as A1 and A2 respectively. The frequency domain feature map contains the amplitude and phase information of the high-level feature layer; e) performing a cross-power spectrum calculation on A1 and A2, further performing an inverse Fourier transform, and obtaining the relative translation of the two images by searching for the peak value, that is, obtaining the relative translation of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2); f) The frequency domain feature map can be split into an amplitude spectrum and a phase spectrum. The amplitude spectrum of A1 and the amplitude spectrum of A2 are transformed into log polar coordinates to obtain the log polar coordinate images of the amplitude spectrum, which are recorded as L1 and L2 respectively; g) calculating the cross-correlation function of L1 and L2, obtaining the maximum value point, extracting the polar angle information of the maximum value point, that is, obtaining the relative rotation angle between the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2); h) equating the relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) to the relative translation information and relative rotation angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1), and combining the field of view angle information of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1) to calculate the registration information; i) By collecting images of the main visible light imaging lens (C1) and the ultraviolet imaging lens (UV1) in real time, and combining the relative translation information and relative rotation angle information obtained in step h, based on image fusion technology, real-time same-screen display of visible light imaging and ultraviolet imaging after registration can be achieved.

2. The method for field of view registration of ultraviolet lens imaging and visible light lens imaging according to claim 1, characterized in that: In step a, the positioning support member (10) comprises a rigid fixing portion (101) and an extending support portion (102), the extending support portion (102) extending horizontally outward from one side of the rigid fixing portion (101), the rigid fixing portion (101) being detachably connected to the main structure of the ultraviolet imaging lens (UV1), the auxiliary registration imaging lens (C2) being fixedly arranged at the end of the extending support portion (102), so that the auxiliary registration imaging lens (C2) is located at the center position directly in front of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is as close to the ultraviolet imaging lens (UV1) as possible.

3. The method for field of view registration of ultraviolet lens imaging and visible light lens imaging according to claim 2, characterized in that: The method for making the auxiliary registration imaging lens (C2) be located at the center position directly in front of the ultraviolet imaging lens (UV1) in step a is to calibrate the fields of view of the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) by using a multi-point ultraviolet light source calibration method.

4. The method for field of view registration of ultraviolet lens imaging and visible light lens imaging according to claim 1, characterized in that: In the step b: ensuring that the images captured by the main visible light imaging lens (C1) and the auxiliary registration imaging lens (C2) have an overlap of no less than 50%.

5. The method for field of view registration of ultraviolet lens imaging and visible light lens imaging according to claim 1, characterized in that: In step c: the DeepLabv3Plus model is a pre-trained deep neural network model. When the deep neural network model is deployed, it is necessary to remove the last individual layers of the network so that the network can output image features.

6. A field of view registration system for ultraviolet lens imaging and visible light lens imaging, characterized in that: The invention comprises a main visible light imaging lens (C1), an auxiliary registration imaging lens (C2) and an ultraviolet imaging lens (UV1); the size of the auxiliary registration imaging lens (C2) is smaller than that of the ultraviolet imaging lens (UV1); the auxiliary registration imaging lens (C2) is fixed at the center position in front of the ultraviolet imaging lens (UV1) through a positioning support (10); the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) are integrated; the main visible light imaging lens (C1), the auxiliary registration imaging lens (C2) and the ultraviolet imaging lens (UV1) are arranged in parallel.

7. The method for field of view registration of ultraviolet lens imaging and visible light lens imaging according to claim 6, characterized in that: The positioning support member (10) comprises a rigid fixing portion (101) and an extended support portion (102), wherein the extended support portion (102) extends horizontally outward from one side of the rigid fixing portion (101), the rigid fixing portion (101) is connected to the main structure of the ultraviolet imaging lens (UV1), and the extended support portion (102) is connected to the auxiliary registration imaging lens (C2).

8. A combined lens, characterized in that: The method comprises an ultraviolet imaging lens (UV1) and an auxiliary registration imaging lens (C2), wherein the size of the auxiliary registration imaging lens (C2) is smaller than that of the ultraviolet imaging lens (UV1), and the auxiliary registration imaging lens (C2) is arranged at the center position in front of the ultraviolet imaging lens (UV1), wherein the combined lens is arranged to execute the field of view registration method according to any one of claims 1 to 5.

9. A positioning support, characterized in that: The invention comprises a rigid fixing portion (101) and an extending support portion (102), wherein the extending support portion (102) extends horizontally outward from a middle side of the rigid fixing portion (101), wherein the positioning support member is configured to be used for assembling the combined lens as claimed in claim 8, the rigid fixing portion (101) is used for connecting an ultraviolet imaging lens (UV1), and the extending support portion (102) is used for connecting an auxiliary registration imaging lens (C2).

Images