477 results about "Protective glasses" patented technology

The invention relates to the technical field of intelligent equipment management, in particular to an intelligent protective glasses equipment management method and system based on a cloud platform. The method comprises the following steps: monitoring corresponding dial scanning data, gas monitoring data and equipment external environment data in real time through a corresponding sensor built in intelligent protective glasses equipment, and uploading the data to a cloud platform; acquiring an equipment dial plate scanning use frequency, and performing dial plate scanning fault analysis and gas reading abnormity evaluation to obtain an equipment dial plate scanning fault probability and an equipment gas reading abnormity index; and carrying out equipment intelligent management analysis on the intelligent protective glasses equipment based on the equipment dial scanning fault probability and the equipment gas reading abnormal index so as to generate a cloud platform equipment abnormity maintenance management plan corresponding to the intelligent protective glasses equipment. According to the invention, comprehensive equipment state monitoring and accurate maintenance management work can be provided for the intelligent protective glasses, so that the use performance and user experience of the intelligent protective glasses can be improved.

The invention provides a projection lens, which sequentially comprises a first lens with positive focal power from a projection surface to an image source surface along an optical axis, a second lens with negative focal power and a third lens with positive focal power from the projection surface to the image source surface, the surface of the projection side of the second lens is a convex surface, and the surface of the image source side of the second lens is a concave surface; the surface of the projection side of the third lens is a concave surface, and the surface of the image source side of the third lens is a concave surface; the surface of the projection side of the fourth lens is a convex surface, and the surface of the image source side of the fourth lens is a convex surface; the surface of the image source side of the fifth lens is a convex surface; the surface of the projection side of the sixth lens is a convex surface; a prism; a protective glass; a piece of plate glass with changeable positions is arranged between the prism and the protective glass, and the plate glass can be located at a first position or a second position through a switching device. According to the projection lens provided by the invention, clear imaging at two different projection distances is realized through switching of the plate glass, and switching between a close shot and a long shot is completed.

According to the measuring equipment provided by the invention, based on the light path design of double Fizeau interferometers, the third quarter-wave plate is arranged between the first PBS beam splitter prism and the first protective glass, and the fourth quarter-wave plate is arranged between the second PBS beam splitter prism and the second protective glass; the first protection glass reflects part of incident light beams to the third quarter-wave plate and then reflects out of a light path after passing through the first PBS prism, and the second protection glass reflects part of incident light beams to the fourth quarter-wave plate and then reflects out of the light path after passing through the second PBS prism. Therefore, light reflected by the paired protective glass is prevented from entering the interferometer on the side, crosstalk is filtered out, and the measurement precision is ensured.

The invention provides a projection lens, which sequentially comprises a first lens with positive focal power from a projection surface to an image source surface along an optical axis, a second lens with negative focal power and a third lens with positive focal power from the projection surface to the image source surface, the surface of the projection side of the second lens is a convex surface, and the surface of the image source side of the second lens is a concave surface; the surface of the projection side of the third lens is a concave surface, and the surface of the image source side of the third lens is a convex surface; the surface of the projection side of the fourth lens is a concave surface; the surface of the projection side of the fifth lens is a concave surface, and the surface of the image source side of the fifth lens is a convex surface; the surface of the projection side of the sixth lens is a convex surface, and the surface of the image source side of the sixth lens is a convex surface; a prism; a protective glass; plate glass is arranged between the prism and the protective glass, and the plate glass can be located at a first position or a second position through a switching device. According to the projection lens provided by the invention, clear imaging at two different projection distances is realized through switching of the plate glass, and switching between a close shot and a long shot is completed.

The invention provides a blowing head and laser welding equipment, the blowing head comprises a body, the body is provided with a laser channel in a penetrating mode, the laser channel is provided with a light inlet end and a light outlet end, and a laser beam is transmitted to the light outlet end from the light inlet end; the protective glass is positioned on one side of the light inlet end; a blowing channel used for conveying protective gas into the laser channel is arranged on the side wall of the body in a penetrating mode. The end face, close to the light outlet end, of the body is provided with a spherical reflecting face which is concavely arranged towards the light inlet end, the spherical reflecting face and a space defined by a welded workpiece form a heat storage space, and the laser channel is communicated into the heat storage space. According to the method, the influence of protective gas on cooling of a welding spot area can be reduced, the laser absorption rate of a welded part is increased, and the welding depth and quality are guaranteed.

The invention belongs to the technical field of laser processing, and particularly relates to a laser processing head anti-splashing structure and a laser processing head. The anti-splashing structure of the laser machining head comprises a protective mirror, a nozzle and a stop assembly. Wherein the stop assembly is arranged between the protective mirror and the nozzle, but not limited to, and can also be arranged on the nozzle. The stop assembly comprises at least one first stop structure. In one case, the first stop structure is arranged outside the first channel. And under the other condition, the first stop structure is arranged in the first channel so as to be used for adsorbing and / or stopping substances such as splashes and chippings generated during machining. According to the technical scheme, the anti-splashing effect can be greatly improved, the protective glass is prevented from being damaged, and the service life of the protective glass is prolonged.

The invention provides an endoscope objective lens, and relates to the technical field of medical instruments. Comprising a first spherical lens with negative focal power, a second spherical lens with positive focal power, a third spherical lens with negative focal power, a fourth spherical lens with positive focal power, a fifth spherical lens with positive focal power, an optical filter and protective glass which are sequentially arranged from an object side to an image side. The incident face, facing the object side, of the first spherical lens comprises a plurality of different film coating areas, the film coating areas are provided with different filter films, and the field angles of the multiple film coating areas are different. By setting the form, focal power and related parameters of each spherical lens, the endoscope objective lens has the advantages of large field angle, miniaturization and large depth of field, and by partition coating, changes of a transmittance curve and a reflectivity curve caused by changes of an incident field angle are reduced, light of a laser band is cut off, and the anti-laser effect of a coating film is ensured; under the laser-free working condition, color cast during large-field-angle imaging is avoided, and the image quality is improved.

The invention discloses protective glass, an isolating agent, application of the isolating agent and display equipment, the protective glass comprises a glass body and an isolating membrane layer arranged on at least one surface of the glass body, the isolating membrane layer can inhibit alkali precipitation reaction of soda-lime glass, especially alkali precipitation reaction on the back surface of the glass, and the isolating membrane layer can inhibit alkali precipitation reaction of the soda-lime glass, especially alkali precipitation reaction on the back surface of the glass. And the surface energy difference of the back surface of the glass can be eliminated, so that the whole surface energy becomes more uniform. The protective glass is good in optical transparency, clear in imaging, high in glossiness, low in Ra roughness and high in Rsm roughness, the problem of poor watermarks of a whole machine can be solved, and the protective glass can be adopted for improvement as long as soda-lime glass is used in other industries.

The utility model discloses an intelligent watch quick release type dial plate assembly comprising an intelligent watch main body, watchband installation positions are arranged on two sides of the intelligent watch main body, and a connection mainboard is arranged above the intelligent watch main body; the dial plate assembly is provided with protective glass, a display panel is installed below the protective glass, and the position of the display panel corresponds to the position of the connection mainboard; and the quick-release connecting structure is arranged between the smart watch main body and the dial plate assembly, and the mounting of the smart watch main body and the dial plate assembly is realized through the quick-release connecting structure. According to the utility model, the quick-release connecting structure is adopted, so that the smart watch main body and the dial plate assembly can be quickly disassembled and assembled, and the convenience of replacement and maintenance is improved; the stable connection between the dial plate assembly and the intelligent watch main body is realized through the positioning structure and the magnetic attraction fixing structure, and the wearing safety and stability are ensured.

The invention discloses a vehicle-mounted landscape lens, and belongs to the technical field of vehicle-mounted lenses, the vehicle-mounted landscape lens comprises an optical assembly and a lens barrel, and the optical assembly comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens which are sequentially arranged from left to right along a light incident light path; the first lens is a meniscus negative lens, the second lens is a negative lens, the third lens has positive focal power, the fourth lens is a positive lens, the fifth lens is a biconvex positive lens, the sixth lens is a biconcave negative lens, the seventh lens is a biconvex positive lens, the eighth lens is a color filter, the ninth lens is protective glass, and the outer side of the image surface of the protective glass is a lens imaging surface. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all fixedly installed in the lens barrel. The vehicle-mounted landscape lens structure has the effect of improving the stability of the vehicle-mounted landscape lens structure while ensuring the reliable performance of the vehicle-mounted landscape lens.

The invention relates to an LED-based replacement radiation means (100, 200) for replacing conventional radiation means, such as UV fluorescent lamps and medium-pressure lamps, comprising a plurality of LEDs (102, 202) arranged on a circuit board (101, 201), at least one power supply unit (103, 203) arranged on the circuit board (101, 201) for supplying the plurality of LEDs (102, 202) with a supply voltage with sufficient power that is suitable for the LEDs (102, 202). According to the invention, the circuit board (101, 201) a) has exposed LEDs (102, 202), b) is connected via an electrical cable (104, 204) to a plug (105, 205) which can be plugged with its electrical contacts into a lamp socket (122) for a conventional lamp, and c) has fastening means with which the circuit board (101, 201) can be fastened in a clamp socket (111) of a protective glass holder or on a device for receiving a UV fluorescent lamp.

The application discloses a large-view-field object-side telecentric projection imaging method and a lens for a vehicle lamp. Incident light rays are converged through two large-aperture meniscus lens; the converged light rays are reduced in size and aberration through a double cemented lens group composed of a first negative double-concave lens and a first positive double-convex lens; the light rays are further converged through a second negative meniscus lens, so that the light rays all enter a diaphragm; chromatic aberration is corrected through three cemented lenses, and aberration is further reduced, and a spherical aberration can be corrected since the aperture diaphragm is located on the object side of the three cemented lenses; the light path is further converged through two double-convex lens groups, and distortion is reduced, the light rays enter a TIR total reflection prism, pass through a protective glass, and are clearly imaged on a DMD image plane. The imaging method provided by the application can realize object-side telecentric projection imaging under a large view field through the cooperation of conditional expressions and positive and negative focal lengths between the lenses, and the imaging is high in definition.

The invention discloses a medium-wave infrared illumination optical system design method, equipment and a storage medium, belongs to the technical field of infrared target simulation, and solves the technical problem that the diffraction efficiency and contrast are reduced when the prior art is applied to a medium-wave infrared illumination optical system. A DMD diffraction model is constructed, optical system analysis is carried out, the optimal pixel size and the optimal incidence pitch angle of the medium-wave infrared illumination optical system are obtained, and the medium-wave infrared illumination optical system comprises an illumination lens group, a shaping diaphragm, a trapezoidal prism, protection glass and a DMD target surface which are sequentially arranged along the light source emergent end. The light source converges light beams through the illumination lens group to form illumination light beams, the illumination light beams are shaped through the shaping diaphragm, and then the shaped illumination light beams are reflected to the target surface of the DMD through the trapezoidal prism. The medium-wave infrared illumination optical system is high in diffraction efficiency, small in stray light interference and capable of improving the contrast ratio of a projected image.

The utility model relates to the technical field of glasses hot melting gluing equipment, and discloses a hot melting gluing machine for producing protective glasses, which comprises a base, the top of the base is fixedly connected with a hot melting mechanism, and the middle of the top of the base is fixedly connected with a clamping mechanism; the clamping mechanism comprises an operation assembly and a clamping assembly, and the clamping assembly is arranged on the surface of the operation assembly; and the operation assembly comprises a supporting table, the supporting table is fixedly connected to the middle of the top of the base, rotating rods are rotationally connected to the interiors of the two ends of the supporting table correspondingly, connecting rods are fixedly connected to the surfaces of the rotating rods, and connecting strips are rotationally connected to one ends of the connecting rods. According to the hot-melting gluing machine for producing the protective glasses, through the arranged clamping mechanism, the T-shaped block is driven to move in the supporting table, then the clamping base is driven to conduct clamping and clamping fixing operation on the glasses, and in the hot-melting gluing process of the glasses, the stability of the glasses during hot-melting gluing is conveniently kept.

In this method for manufacturing a stator (11), a protective jig (40) for protecting a protective glass (31b) provided to a laser head (31) is attached to a laser-welding device (20) for joining the ends (12a) of a segment coil (12) to each other. The protective jig (40) is provided with: a first partition part (43b) having a first long hole (46a); and a second partition part (47b) having a second long hole (47a). A protective space (S) is formed between the protective glass (31b) and the first partition part (43b). An air passage (R) is formed between the first partition part (43b) and the second partition part (47b). The protective jig (40) is provided with a nozzle (51) that generates an airflow in the air passage (R).

The invention discloses a low-distortion large-magnification all-plastic low-cost eyepiece, and relates to the technical field of lenses, the eyepiece comprises an eyepiece body, the eyepiece body is internally provided with an optical system, the optical system is composed of a diaphragm STO, a first lens, a second lens, a third lens, protective glass and a screen, the first lens, the second lens, the third lens and the protective glass are all made of resin materials, the diaphragm STO is located at the exit pupil position of the eyepiece, the aperture diameter is 3 mm, and the diaphragm STO is used for controlling the clear aperture and the light beam emission angle. The low-distortion large-magnification all-plastic low-cost eyepiece disclosed by the invention has the technical effects of more compact overall design, lighter weight and lower production cost.

The application discloses a high-resolution oblique-axis optical lens, comprising, from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a protective glass and an image sensor; the first lens is a filter; the second lens is a biconvex spherical lens with positive focal power; the third lens is a spherical lens with negative focal power; the fourth lens is a spherical lens with positive focal power; and the fifth lens is a biconcave spherical lens with negative focal power. The technical scheme balances and corrects optical aberrations of all levels by reasonably distributing the focal power of the lenses, reasonably matching the optical materials and shapes, and utilizes the cylindrical lens to correct astigmatism caused by the optical path of the meridian arc vector plane of the protective glass, so that the advantages of large target surface, low distortion, ultra-short object distance, high resolving power and the like of the lens are achieved.

The utility model provides an isolation type fuse, which relates to the technical field of fuses and comprises a fuse main body, a fuse isolation assembly is arranged on the outer side of the fuse main body, a protective outer cover is connected with a clamping groove in the inner side of a limiting sliding groove, a rotating bolt is connected with the lower side of the protective outer cover, and the rotating bolt is connected with the fuse isolation assembly. A bolt head is welded to the tail end of the rotating bolt, and a driven bearing is installed on the outer side of the bolt head. A worker can observe the state of the fusing column through the protective glass plate to ensure the operation safety, and when the protective outer cover is dismounted, the protective outer cover can slowly rise due to the twisting force of the threads along with the rotation of the rotating bolt, so that the protective outer cover can be effectively disconnected with the fusing column, the isolation effect of the fusing column in the operation process is ensured, and the safety of the operation is ensured. Meanwhile, potential safety hazards caused by misoperation are avoided, a worker drives the rotating bolt to rotate through the bolt head through equipment such as a screwdriver, and it is guaranteed that the bolt head cannot dislocate through the driven bearing.

The utility model relates to the technical field of optical equipment, in particular to an optical densimeter and visibility all-in-one machine which comprises a base, a support is arranged at the top end of the base, a transmitting bin and a receiving bin are arranged on the left side and the right side of an inner cavity of the support respectively, and adjusting assemblies are arranged in inner cavities of the transmitting bin and the receiving bin. A transmitting cylinder and a receiving cylinder are arranged on the two adjusting assemblies correspondingly, a transmitting circuit board and a receiving circuit board are arranged at the ends, away from each other, of the transmitting cylinder and the receiving cylinder correspondingly, and protective glasses and cleaning assemblies are arranged at the ends, close to each other, of the transmitting bin and the receiving bin correspondingly. The optical densimeter and visibility all-in-one machine solves the problems that an optical densimeter and visibility all-in-one machine in the prior art cannot adjust the positions of a receiving lens cone and a transmitting lens cone in the actual use process, the flexibility is limited in the use process, and protective glasses cannot be cleaned; and residual dust on the protective glasses can influence the stability of the optical equipment.

1. Name of the designed product: protective sleeve (two-dimensional code protective glass cover). 2. Use of the designed product: the product belongs to two-dimensional code protection accessories, mainly used for outdoor and humid environment, used for covering and protecting the surface of two-dimensional code. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of security and protection monitoring, and discloses a security and protection monitoring capable of autonomous protection, which comprises an external shell and a camera fixedly arranged in the external shell, one end of the camera is fixedly provided with protective glass, and when the security and protection monitoring is used, the protective glass is fixedly arranged at the other end of the camera. Whether a movable object is close to the movable assembly or not within the safety range of the front end of the movable assembly is detected through the inductor, when it is detected that the movable object is close to the movable assembly and possibly damaged, the inductor generates an electric signal to the electric push rod to start the electric push rod, the two sides of the electric push rod push the movable rod into the open groove, and gas is pushed towards the movable assembly; according to the security and protection monitoring capable of achieving automatic protection, when an inductor detects that a movable object gets close to the monitoring area, an electric push rod can be automatically driven to enable the gas in an open groove to be squeezed, and then the gas in the open groove is extruded; and the movable assembly is driven to automatically protect the front end of the camera.

1. Name of the design product: Protective glasses (YJ60). 2. Use of the design product: To block dust and droplets. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view.

The invention relates to a continuous zooming large objective lens system for double depth-of-field fusion. The system is sequentially provided with a large objective lens system, a beam splitting system, a zoom system and an imaging system along a light path, wherein the large objective lens system comprises protective glass, a movable negative lens group (single lens) and a fixed positive lens group (double bonding lens). Continuous zooming is achieved by moving the negative lens group along the optical axis, the focal length range is 240-445 mm, the working distance is adjustable (135-350 mm), and the operation surface observation range is 40-100 mm. According to the system, an apochromatic technology is adopted, H-K9L and H-ZF6 optical glass with abnormal dispersion coefficients is selected, and the MTF value is larger than or equal to 0.5 at 35l p / mm under high magnification and is close to the diffraction limit. The invention has the innovation points that the structure (a single lens and a double bonding lens) is simplified, the mechanical compensation zoom design and a large exit pupil diameter (phi 60-71mm) matching beam splitting system are adopted, and the problems of unsmooth zoom curve, complex process and insufficient exit pupil matching in the prior art are solved.

The invention discloses a pi-shaped chip high-voltage pulse attenuation network resistor and a manufacturing method thereof, and belongs to the technical field of electronic components. The network resistor structure comprises a ceramic substrate, a resistive layer, a resistive layer R1, a resistive layer R2, a resistive layer R3, a surface electrode, a back electrode, a side electrode, an electrode nickel-plated layer, an electrode lead-tin-plated layer, a glass protection layer and an epoxy resin layer. The manufacturing method comprises the following steps: printing a surface electrode on the upper surface of a ceramic substrate, printing a back electrode on the lower surface of the ceramic substrate, printing a resistive layer bridged on the surface electrode, printing protective glass on the resistive layer, carrying out laser resistance trimming on the resistive layer, printing an epoxy resin protective layer and a mark on the protective glass, and sputtering a metal layer on the end surface. And preparing an electrode nickel-plated layer and a lead-tin-plated layer on the end surface. The problems that in the prior art, overheat burnout is likely to occur, electrodes are likely to be eroded in a humid or sulfur-containing environment, and the manufacturing precision and stability are difficult to improve and control are solved. The resistor is widely applied to the technical field of attenuation network resistors.

A lighting device (ED) comprises: - at least one photon-generating source for at least one flat diffusion screen (ED2), having a length and height and thickness strictly less than this length and perpendicular to each other and to this length, and subdivided into first (P1) and second (P2) parts fixedly joined together by extending each other and diffusing photons from the source onto a first front face (FV1), and - at least one protective glass (GP2) comprising a wall (PG1) having a length and height substantially identical to those of the diffusion screen (ED2), installed in front of the first front face (FV1) by being coupled to the first (P1) and second (P2) parts, and adapted to allow the diffused photons to pass through. Figure 3

The utility model discloses a solar photovoltaic aluminum frame protection structure which comprises an aluminum frame body, first protection glass is installed on one side of the aluminum frame body through a first positioning mechanism, and second protection glass is installed on one side of the aluminum frame body through a second positioning mechanism. And a first mounting block is fixedly mounted on one side of the second protective glass, and a limiting groove is formed in the top of the first mounting block. First protective glass can be positioned by inserting a first positioning block into the inner wall of a first positioning groove, second protective glass can be positioned by inserting a second positioning block into the inner wall of a second positioning groove, and a limiting plate is driven to descend by rotating a threaded rod, so that the limiting plate is inserted into the inner wall of a limiting groove; the first mounting block and the second mounting block can be mounted in a limited mode, then the first protective glass and the second protective glass are mounted in a limited mode, and the solar panel can be protected through the first protective glass and the second protective glass.

The utility model relates to an automobile touch reading lamp and an automobile, the automobile touch reading lamp comprises a shell, a controller, a touch screen feedback module and a lamp assembly, the shell is respectively provided with a first through hole and a second through hole; the controller is arranged in the shell; the touch screen feedback module comprises a capacitive screen and a tactile feedback module which are respectively arranged in the shell, the touch surface of the capacitive screen is connected with protective glass, the other surface of the capacitive screen is connected with the tactile feedback module, and the capacitive screen and the tactile feedback module are respectively connected with the controller; the lamp assembly comprises a lamp panel, the lamp panel is arranged in the shell and connected with the controller, lamp beads of the lamp panel are covered with a lampshade extending to the second through hole, and a lamp cover embedded into the second through hole is arranged on the lampshade in a buckled mode. According to the automobile touch reading lamp, the capacitive screen and the tactile feedback module are arranged to perfectly replace a traditional mechanical switch, when a user operates the reading lamp, the reading lamp can be turned on only by lightly touching the position of the capacitive screen, vibration can be fed back to the user, the structure is simple, operation is convenient, and interaction experience is good.

The measuring equipment provided in the present application is based on the optical path design of the double Fizeau interferometer. A third quarter-wave plate is arranged between the first PBS beam splitter prism and the first protective glass, and a fourth quarter-wave plate is arranged between the second PBS beam splitter prism and the second protective glass. The first protective glass reflects part of the incident light beam to the third quarter-wave plate, and then reflects it out of the light path after passing through the first PBS beam splitter prism. The second protective glass reflects part of the incident light beam to the fourth quarter-wave plate, and then reflects it out of the light path after passing through the second PBS beam splitter prism, so as to prevent the light reflected by the protective glass on the opposite side from entering the interferometer on this side, filter out crosstalk, and ensure measurement accuracy.

The invention discloses a double liquid telecentric lens, which belongs to the technical field of optical design and is sequentially provided with an optical amplification group, an aperture diaphragm, a liquid lens and an imaging group along an optical path. Wherein the optical amplification group comprises three lenses, the first lens is a biconvex lens, the second lens is a biconvex lens, and the third lens is a biconcave lens in the direction of an optical path; the liquid lens comprises protective glass, optical liquid is packaged in the protective glass, and a magnetic field generator for adjusting the curvature of the liquid lens is arranged on the protective glass; the imaging group comprises three lenses, along the optical path direction, the fifth lens is a convex-concave lens, the sixth lens is a biconcave lens, and the seventh lens is a concave-convex lens. On the premise of keeping the magnification and resolution of the lens unchanged, the high-low fall detection accuracy and speed can be effectively improved, so that the high-low fall detection method plays a greater role in various precision detection fields.

The invention provides an ultra-wide-angle automobile application look-around optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, an optical filter, protective glass and an image plane from an object plane to an image plane along an optical axis. The ultra-wide angle design is adopted, the lens angle reaches 207 degrees, the driving view field is greatly widened, the athermalization design is adopted, thermal temperature drift compensation is achieved, the working temperature can range from-40 DEG C to 105 DEG C, and the application of the product in high-temperature, low-temperature and other complex temperature scenes is improved; the EP8000 / T62R / F3500 plastic material with a high Tg value is selected when the material of the lens is selected, so that the high and low temperature working reliability of the lens is ensured; the high-temperature MTF attenuation sensitive lens is designed to be away from the inner wall of the lens cone, so that MTF attenuation caused by surface variation due to extrusion of the high-temperature plastic lens and the lens cone is avoided, and the definition of the lens in a complex high-temperature environment is ensured; the purple edge is optimized through matching of the spherical surface and the aspheric surface, and the image quality of lens imaging is improved.