86 results about "Small lens" patented technology

The utility model provides a dual-linkage focusing mode lens and camera shooting equipment, and relates to the technical field of optical imaging, the dual-linkage focusing mode lens comprises a manual focusing lens group, an automatic focusing lens group, a manual driving assembly, an automatic driving assembly and a position sensing trigger unit, the manual focusing lens group comprises at least one manual lens group, and the automatic focusing lens group comprises at least one automatic lens group. The automatic focusing lens group comprises at least one automatic lens group, and the manual driving assembly is connected with and manually drives the manual focusing lens group; a motor of the automatic driving assembly is in driving connection with the automatic focusing lens group; when the manual focusing lens group moves to a preset position along the optical axis, the position induction triggering unit is triggered to start the motor to drive the automatic focusing lens group to execute automatic focusing, the manual focusing lens group and the automatic focusing lens group are sequentially arranged along the optical axis, relay type optical path design is achieved, the size of the lens can be reduced, and redundant motion of the focusing lens groups can be avoided; the position sensing trigger unit is triggered to quickly switch the focusing mode, the movement of a single focusing lens group can be accurately controlled, and the focusing precision and speed are improved.

The invention discloses a large-image-plane video small lens and a camera, and relates to the technical field of optical lenses, and the large-image-plane video small lens is provided with an object side and an image side which are oppositely arranged along the optical axis direction. The small video camera with the large image plane comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged from the object side to the image side. Wherein the first lens, the second lens, the fourth lens, the fifth lens, the seventh lens and the eighth lens are plastic aspherical lenses, and the third lens and the sixth lens are glass aspherical lenses; the resolution ratio of the large-image-plane video small lens is greater than or equal to 12M, the image plane height of the large-image-plane video small lens is phi, and the total optical length of the large-image-plane video small lens is TTL, 1lt; tTL / phi < = 1.5. The technical effects of large imaging surface, good imaging effect and small size are achieved through arrangement and combination of the eight lenses, material selection, surface type distribution and parameter design of the lenses.

Proposed is a small lens system including a first lens, a second lens, a third lens, and a fourth lens arranged along an optical axis from an object. The iris diaphragm is located between the first lens and the second lens. The first lens has a negative refractive power and includes a surface concave surface on an object side and a convex surface on an image side. The second lens has a positive refractive power and includes convex surfaces on both sides. The third lens has a positive refractive power and includes convex surfaces on both sides. The fourth lens has a negative refractive power and includes concave surfaces on both sides. All surfaces of the first to fourth lenses are aspherical.

The utility model discloses a catadioptric thermal imaging optical system, which comprises a diaphragm, a second reflector, a lenslet and a first reflector which are sequentially distributed at intervals along an optical axis S from an object side to an imaging surface, and the outer diameter of the diaphragm and the outer diameter of the first reflector are larger than the outer diameter of the second reflector. A through hole is dug in the middle of the first reflector, a small lens is arranged on the left side of the through hole, the diaphragm is made of chalcogenide glass or germanium materials, the first reflector is an aspheric reflector with a concave face, the second reflector is an aspheric reflector with a convex face, and the concave face faces the diaphragm and is opposite to the convex face. Light emitted from the object side and with the wavelength ranging from 8 micrometers to 14 micrometers penetrates through the periphery of the diaphragm to reach the first reflector, is reflected by the concave face for the first time to reach the second reflector, is reflected by the convex face for the second time and then is refracted by the small lens to be imaged on the imaging face, the manufacturing cost is low, and the imaging quality is good.

The application discloses a middle-wave refrigeration infrared lens, which comprises a first lens, a second lens, a third lens and a fourth lens arranged in sequence along the transmission direction of the optical axis; the first lens and the third lens are both meniscus positive lenses with the convex surface facing the object side; the second lens is a meniscus negative lens with the convex surface facing the object side; the fourth lens is a meniscus negative lens with the convex surface facing the image side; the air gap between the first lens and the second lens is 1 mm; the air gap between the second lens and the third lens is 54 mm; and the air gap between the third lens and the fourth lens is 5 mm; wherein the lens further comprises a reflecting mirror arranged between the second lens and the third lens to change the direction of the optical axis; the lens provided by the application has the advantages of small lens length size, simple structure, large target surface, clear imaging, and the ability to match a 320*256 resolution and a 30 mu m refrigeration type detector; and the application further discloses an imaging device.

The application discloses a lens module and a camera device with the same. The lens module comprises a lens barrel, a movable part and an electromagnetic driving assembly. The lens barrel is internally provided with a containing space. The movable part is used for carrying an image sensor. Part of the movable part used for carrying the image sensor is located below the containing space. The electromagnetic driving assembly comprises a coil and a magnetic body. The electromagnetic driving assembly is arranged below the containing space. The electromagnetic driving assembly drives the movable part to move by generating Lorentz force or magnetic force between a magnetic field generated by energizing the coil and the magnetic body, so as to drive the image sensor to move. According to the lens module of the embodiment of the application, focusing is realized by driving the image sensor to move instead of driving the lens assembly to move, so that the driving force required by the lens module is smaller, the space reserved for the image sensor by the lens module is smaller, and the thickness in the axial direction can be saved.

The invention relates to the field of measuring instruments, and discloses a multifunctional rapid measuring instrument for large and small lenses, which comprises a carriage plate, a damping connecting assembly is arranged at the upper end of the carriage plate, and at least three supporting legs are arranged at the upper end of the damping connecting assembly. Connecting blocks are fixedly welded to the ends, away from the damping connecting assemblies, of the supporting legs, no less than four connecting screws are arranged in the connecting blocks in a penetrating mode, and multi-direction adjusting assemblies are arranged at the upper ends of the connecting blocks. According to the invention, through the collaborative design of an innovative three-stage damping system (composed of a damping pad, a damping column, a damping spring, a limiting block and a buffer pad), a multi-direction adjusting assembly and a quick connecting and disconnecting assembly, the stability and adaptability of equipment in a dynamic operation environment are remarkably improved; a multi-point uniform stress structure and a composite damping mechanism effectively attenuate multi-band vibration in the running process of a vehicle, and high-precision data acquisition of the measuring instrument on a mobile platform (such as an inspection vehicle) is guaranteed.

The utility model provides a high-pixel automatic focusing miniature lens, which comprises a lens main body, a fixing ring sleeved on one side of the surface of the lens main body, a taking assembly arranged on the surface of the fixing ring and comprising an arc-shaped sliding groove, arc-shaped sliding blocks slidably connected to the left side and the right side of the arc-shaped sliding groove, and a connecting belt connected between the two arc-shaped sliding blocks. The multiple limiting assemblies are arranged between the fixing ring and the two arc-shaped sliding blocks correspondingly. According to the high-pixel automatic focusing small lens provided by the utility model, the surface of the lens main body is provided with the fixing ring with the arc-shaped sliding groove, the arc-shaped limiting groove and the communicating groove, and the fixing ring is matched with the two arc-shaped sliding blocks with the arc-shaped limiting blocks and the connecting belt for use; when a user carries the lens main body outdoors for use and carries out replacement operation of the lens main body, the lens main body can be protected by taking the connecting band in the process of taking and disassembling the lens main body, and the lens main body is prevented from falling and being damaged by collision due to misoperation.

The invention relates to a DMS optical lens based on an infrared image, an optical system of the lens is composed of a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged from left to right along a light incident light path, and a diaphragm is arranged on an S1 surface of a lens L1. Wherein the first lens is a biconvex positive lens; the second lens is a plano-concave negative lens; the third lens is a meniscus convex positive lens; the fourth lens is a meniscus convex positive lens. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the design meets the imaging performance requirement of the lens, and meanwhile, the total length of the lens and the radial size of each lens are reduced by adopting the structural form of an all-glass spherical lens, so that the imaging performance of the lens is improved. The purposes of lens group miniaturization and cost reduction are achieved.

The invention discloses a deformable lens, which belongs to the field of optical lenses and comprises a first cylindrical lens group, a first spherical lens group, a second spherical lens group, a third spherical lens group, a fourth spherical lens group, a second cylindrical lens group and a fifth lens group which are sequentially arranged from an object space to an image space. The focal lengths of all the lens groups meet the following conditions: 1.2 lt; f (G1-G7) Y / f (G1-G7) Xlt; 1.8); -7.7 lt,-7.7 lt; f (G2) X / f (G1-G2) Xlt; -6.9,-6.9; -1.8 lt,-1.8 lt; f (G6) Y / f (G3-G7) Ylt; -1.0, and-1.0; 0.6 lt; f (G7) Y / f (G3-G7) Ylt; 1.4, 4; -4.6 lt,-4.6 lt; f (G1-G2) X / f (G3-G7) Xlt; and 3.8. The integrated design is adopted, so that the lens is small in size, and meanwhile, the optical performance of large aperture, high resolution, low respiration, low distortion, 1.33 X deformation ratio and the like is obtained.

The application provides a camera lens, a camera device and an information terminal. The camera lens is sequentially arranged from an object side to an image side with: a first lens with negative refractive power, the first lens being an aspherical lens; a second lens with negative refractive power, the second lens being an aspherical lens; a third lens and a fourth lens with refractive power; a fifth lens with positive refractive power; a sixth lens with positive refractive power; a seventh lens with negative refractive power, the sixth lens and the seventh lens being cemented lenses; an aperture stop; an eighth lens with positive refractive power; and a ninth lens with negative refractive power, the object side surface of the ninth lens being concave at a near optical axis. The camera lens provided by the embodiment of the application has wide-angle characteristics, a short total length and a small lens aperture, and can effectively control distortion and match an image sensor with a large read-in angle.

This invention discloses an endoscope with a 30° viewing angle, belonging to the field of medical optical imaging. It includes an operating unit and a tube located at the end of the operating unit. A lens module capable of achieving a large field of view and high resolution is disposed at the end of the tube away from the operating unit. The lens module includes a first lens, a steering prism assembly, a filter, a second lens, an aperture stop, a third lens, a fourth lens, a fifth lens, and a sixth lens, arranged sequentially from the object side to the image side within the tube. The steering prism assembly enables optical path steering to form a 30° viewing angle. This 30° viewing angle endoscope achieves a 30° viewing angle through the steering prism assembly. Through the rational combination of optical lenses, it achieves a large field of view and high resolution while ensuring a miniaturized lens size, solving the problems of small field of view, large lens size, and low resolution commonly found in rigid electronic endoscopes.

The application discloses a device and method for measuring deflection cemented lens eccentric distance, which comprises a deflection cemented lens to be measured, a lens tube clamping assembly, an integrating sphere uniform light source, a camera and an auxiliary rotating table. The deflection cemented lens to be measured comprises a deflection prism and a small lens group which are cemented. The lens tube clamping assembly comprises a double-layer lens tube for fixing the deflection cemented lens to be measured. The integrating sphere uniform light source is used to provide uniform light which is converged into a light spot after passing through the deflection cemented lens to be measured. The auxiliary rotating table is used to adjust the camera or the lens tube clamping assembly so that the optical axis of the camera is perpendicular to the top plane of the deflection prism. The distance between the center of the light spot and the center of the small lens group is the eccentric distance of the deflection cemented lens to be measured. The application calculates the deviation between the light spot and the small lens group at the top by means of image recognition, so as to determine the cementing effect of the deflection cemented lens, and greatly improves the assembly efficiency and the yield of the product.

The application provides a kind of array camera-based coastline ship real-time tracking method, which comprises determining the small lens number and the overlapping area of the image data collected between each adjacent small lens according to the small lens distribution of array camera;All ships to be tracked in the small lens are preliminarily labeled rectangular frame TE;Each labeled rectangular frame TE ship forms a detection frame TF, and a set of Box (x, y, w, h) and a set of feature vectors P are obtained;The intersection-over-union (IOU) of the detection frame TF and the rectangular frame TE of the ship to be tracked is compared, and the ship to be tracked with the intersection-over-union (IOU) reaching the set value is tracked;The ship tracking sequence TraceQueue is obtained;The current small lens sends the signal of the ship to be tracked to the corresponding adjacent small lens through socket communication, and continues to track the ship in the adjacent small lens. The position information and the feature vector of the ship are combined to determine whether two targets in different cameras are the same, thereby improving the accuracy of target tracking.

The present application provides a lens driving mechanism and an electronic device with the same. The lens driving mechanism is used to drive a lens unit to move along an optical axis direction, which comprises an outer frame, a base, a lens carrier and a driving assembly. The outer frame is made of plastic material and has an opening. The base is in contact with the outer frame and is fixed with the outer frame. A receiving space is formed between the outer frame and the base. The lens carrier is movably arranged in the receiving space and is used to carry the lens unit. An external light enters the receiving space through the opening of the outer frame and reaches the lens unit. The driving assembly is arranged in the receiving space and is connected with the lens carrier and the outer frame to drive the lens unit to move along the optical axis direction. The lens driving mechanism can greatly reduce the overall size of the lens driving mechanism and effectively reduce the manufacturing cost.

The present invention discloses a telescopic lens device and a mobile phone. The telescopic lens device includes a shell, at least two lens groups and a stretching buffer. The shell is formed with a mounting channel having an object side end and an image side end relatively arranged along a first direction. A connecting portion with a connecting platform is provided in the mounting channel. At least two lens groups are installed in the mounting channel, including a first lens group arranged adjacent to the image side end. The first lens group is movably installed in the mounting channel along the first direction. The first lens group has a mounting platform that is opposite to and spaced from the connecting platform along the first direction. The mounting platform is arranged adjacent to the image side end. The stretching buffer is provided between the mounting platform and the connecting platform, and the two ends are connected to the connecting platform and the mounting platform. Under the action of the stretching buffer, the speed of the first lens group moving toward the image side end is slowed down, the force on the lens is reduced, and the problem of the first lens group colliding with the mobile phone body located at the image side end due to excessive speed is avoided, thereby improving the service life of the telescopic lens device.

The application relates to a 3M five-piece front-view main camera and an imaging method thereof, which is composed of a first lens, a second lens, a diaphragm, a third lens, a fourth lens and a fifth lens arranged in sequence from left to right along the light incident path; the first lens is a meniscus negative lens, the object side surface of which is a convex surface, and the image side surface is a concave surface; the second lens is a biconvex positive lens, the object side surface of which is a convex surface, and the image side surface is a convex surface; the third lens is a biconvex positive lens, the object side surface of which is a convex surface, and the image side surface is a convex surface; the fourth lens is a biconcave negative lens, the object side surface of which is a concave surface, and the image side surface is a concave surface; and the fifth lens is a biconvex positive lens, the object side surface of which is a convex surface, and the image side surface is a convex surface. The application has the advantages of reasonable design and simple structure, and through reasonable distribution of the optical power, surface type, central thickness of each lens and the axial distance between the lenses, the total length of the lens and the radial size of each lens are reduced while the 3M imaging performance requirement of the five-piece lens is met, and the lens group is miniaturized.

The application discloses an embedded color-changing lamp bead, which comprises a support and a lamp holder. A chip is fixedly installed in the lamp holder through die bonding. A spherical mirror is fixedly installed above the chip. A light channel is formed in the upper portion of the spherical mirror. Three groups of annular reflecting surfaces are equidistantly arranged on the inner wall of the light channel. The three groups of annular reflecting surfaces gradually increase from bottom to top, forming inclined surfaces with different angles. The surfaces of the light channel and the annular reflecting surfaces are uniformly provided with convex surfaces. A compound eye lens is embeddedly installed on the top of the light channel. The spherical mirror is used to convert light into annular light. The annular light is injected into the light channel. The light is dispersed in multiple directions through the three groups of annular reflecting surfaces with different inclined angles. When the light passes through the compound eye lens, each small lens focuses the light on a certain point behind the small lens. Since the compound eye lens comprises multiple small lenses, multiple light source images can be formed. The light source images are superimposed on each other, so that uniform light is formed on the illumination surface.

The application relates to a DMS optical lens based on an infrared image and an imaging method thereof. An optical system of the lens is composed of a diaphragm, a first lens, a second lens, a third lens and a fourth lens arranged in sequence from left to right along an optical path of light incidence. The first lens is a plano-convex positive lens, the second lens is a meniscus concave negative lens, the third lens is a double-convex positive lens, and the fourth lens is a meniscus concave negative lens. The first lens is a glass spherical lens, and the second lens, the third lens and the fourth lens are plastic aspherical lenses. The application adopts four optical lenses, that is, one glass spherical lens and three plastic aspherical lenses to form an imaging system, so that the total length of the lens and the radial size of each lens are reduced, and the purpose of miniaturization of the lens group and cost reduction is achieved.

The present application relates to the field of optical telescope technology, and proposes a kind of spectroscopic popular science telescope, including frame body, field lens ocular lens, cemented ocular lens, display screen and ridge prism are connected from top to bottom on frame body respectively;Half house cemented prism is fixedly connected between one side of ridge prism and frame body, and the inside of frame body is connected with light splitting focusing module, and light splitting focusing module includes relay lens large lens, relay lens middle lens and relay lens small lens;Light splitting focusing module is composed of three relay lenses of relay lens large lens, relay lens middle lens and relay lens small lens, and light splitting focusing module is arranged on original observation light path, and original observation light path is divided into the following two ways: one way is observation light path, directly conducted to field lens ocular lens for user naked eye observation;Another way is imaging acquisition light path.Through the above technical scheme, the problem that the existing telescope exists prism observation and imaging light path coincides, sometimes there will be shielding interference, which will affect the user's judgment.

The present application relates to a kind of six-piece 8M front-view optical systems and imaging method, optical lens is sequentially provided with first lens, diaphragm, second lens, third lens, fourth lens, fifth lens and sixth lens from object side to image side.Lens is made of glass material, first, second, third, fifth, sixth lens is glass spherical lens, fourth lens is glass aspherical lens, wherein second lens and third lens, fifth lens and sixth lens are cemented lens group.By reasonably distributing the optical power of each lens, surface type, the center thickness of each lens and the axial distance between each lens, etc., while meeting the 8M imaging performance of six-piece lens to replace the requirements of front-view wide-angle camera and front-view narrow-angle camera, the total length of the lens and the radial dimension of each lens are reduced, and the lens group is miniaturized.

The application relates to an 8M vehicle-mounted front-view main camera, and the optical system of the lens is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged along the light incident path from left to right; the first lens is a meniscus concave negative lens, the second lens is a meniscus concave negative lens, the third lens is a double-convex positive lens, the fourth lens is a double-convex positive lens, the fifth lens is a negative lens, and the sixth lens is a double-convex positive lens. While realizing the visual perception and recognition function of driving, 8MP imaging is realized, so that the front-view wide-angle camera and the front-view narrow-angle camera can be replaced, a front-view camera module is formed by a single lens, the cost is greatly reduced, and the market popularity is improved. By reasonably distributing the optical power, surface type, center thickness of each lens and the axial distance between the lenses, the total length of the lens and the radial size of each lens are reduced, and the lens group is miniaturized.

The utility model belongs to an optical path propagation mode, and particularly relates to an HUD optical sensor assembly. An HUD optical sensor assembly comprises a mounting shell and an optical sensor mechanism connected with the mounting shell, and through the arrangement of a dustproof film, a large lens, a small lens, an optical sensor PCBA and a PCBA, the light intensity of sunlight can be detected, and an HUD can be turned off in time to achieve the purpose of protecting a display screen.

The embodiment of the utility model provides a lens module and electronic equipment, relates to the technical field of cameras, and aims to reduce the size of the lens module. The lens module comprises a lens barrel and a plurality of lenses. The plurality of lenses are located in the lens cone, and the lens with the largest radial size in the plurality of lenses is the first lens. The first lens comprises an optical effective part and a non-optical effective part, and the non-optical effective part is arranged on the periphery of the optical effective part in a surrounding mode. The image side surface of the first lens is a convex surface, and the maximum width of the non-optical effective part is 0.2 mm to 0.4 mm. Or, the image side surface of the first lens is a concave surface, and the maximum width of the non-optical effective part is 0.1 mm to 0.2 mm. According to the lens module provided by the embodiment of the invention, aiming at different conditions that the image side surface is a convex surface or a concave surface, the size of the non-optical effective part of the lens with the largest radial size in the lens module is limited and reduced, so that the lens is ensured to be supported during installation, and the size of the radial section of the lens of the lens module can be correspondingly reduced.

The present disclosure is related to an unmanned aerial vehicle-mounted continuous variable-frequency blue-green laser radar for water depth survey, including a blue-green light variable-frequency laser, a laser power supply driver, an encoding motor, a reflective optical wedge, a reflector, a big lens, a small lens, a balanced light detection module, a high-speed laser acquisition processor, an IMU module, an RTK module, a 4G module, a controller, a 4G antenna, a server, a mobile phone terminal and the like according to a characteristic that continuous variable-frequency blue-green laser generates frequency change when encountering a water surface and a water bottom, convolution and fast Fourier transform and a time-frequency correspondence. The laser radar is small in size, light in weight and suitable for an unmanned aerial vehicle to survey a water depth rapidly and precisely, achieves a millimeter-level precision, and realizes 0-10 m water depth survey.

The application relates to a vehicle-mounted front-view binocular camera lens, which comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in sequence from left to right along the light path of light incidence. The design of four glass spherical lenses and three glass aspherical lenses is adopted, the optical power is reasonably distributed, the optical system has high definition, more details can be shot, and the recognition accuracy is improved; the first, second and seventh lenses are glass aspherical lenses, which can reduce aberration, improve image quality, reduce the number of lenses and reduce the outer diameter size of the lens. The lens also has the advantages of a large light aperture and good environmental stability.

The application relates to the technical field of lenses, in particular to a low-cost DMS lens and an imaging method, an optical system of the lens is composed of a first lens, a second lens and a third lens arranged in sequence from left to right along an optical path of light incidence, and a diaphragm is a subject side of the first lens; wherein the first lens is a spherical lens, and the second lens and the third lens are aspherical lenses. By reasonably distributing the optical power, surface type, central thickness of each lens and the axial distance between the lenses, the lens imaging performance requirements are met, the structure form of combining plastic aspherical lenses and glass spherical lenses is adopted, the total length of the lens and the radial dimension of each lens are reduced, and the purposes of miniaturization of the lens group and cost reduction are achieved.

The invention discloses a small-sized lens and AR glasses, and relates to the technical field of optical lenses, the small-sized lens is provided with an object side and an image side which are oppositely arranged along the optical axis direction, and the small-sized lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from the object side to the image side; the thickness of the first lens is L1, and 0.2 mm < = L1 < = 0.3 mm; the thickness of the second lens is L2, and L2 is larger than or equal to 0.5 mm and smaller than or equal to 0.6 mm. The thickness L3 of the third lens is greater than or equal to 0.2 mm and less than or equal to 0.3 mm; the thickness of the fourth lens is L4, and L4 is larger than or equal to 0.6 mm and smaller than or equal to 0.8 mm. The thickness of the fifth lens is L5, and L5 is larger than or equal to 0.39 mm and smaller than or equal to 0.43 mm. The total optical length of the small lens is TTL, and TTL is less than or equal to 4.1 mm; the pixel of the small lens is greater than or equal to 12MP. By setting the number of the lenses and designing permutation, combination and parameters of the lenses, the technical effect of small size of the lens is achieved while a certain resolution is met.

The present invention discloses a wide-screen anamorphic lens, belonging to the field of optical lenses, which includes a first cylindrical lens group, a first spherical lens group, a second spherical lens group, a second cylindrical lens group, a third cylindrical lens group, and a third spherical lens group arranged in sequence along the optical path from the object side to the image side; the focal lengths of all lens groups satisfy: 1.2 < f(G1-G6)X / f(G1-G6)Y < 1.8; -0.9 < f(G5)X / f(G1)Y < -0.3; 2.2 < f(G5)X / f(G4)Y < 3.2; -5 < f(G1)Y / f(G4)Y < -3; 0 < f(G2) / f(G6) < 0.5; -1.5 < f(G2) / f(G3) < -1; -0.2 < f(G3) / f(G6) < -0.1. By adopting an integrated design, while achieving a small lens volume, optical performances such as high resolution, low breathing, low distortion, and fixed anamorphic ratio are obtained.

The invention relates to a five-piece type foresight main camera and an imaging method thereof, the five-piece type foresight main camera comprises an optical system, the optical system is composed of a first lens, a second lens, a balsaming lens group and a fifth lens which are sequentially arranged from left to right along a light incident light path, and the balsaming lens group is composed of a third lens and a fourth lens; the first lens is a meniscus concave negative lens, the second lens is a biconvex positive lens, the third lens is a biconvex positive lens, the fourth lens is a biconcave negative lens, and the fifth lens is a meniscus convex positive lens. The optical lens has the advantages of being good in imaging definition, large in clear aperture, low in tolerance sensitivity and good in high and low temperature stability, scenes in front of a vehicle and far away from the vehicle can be comprehensively monitored, and through reasonable distribution of the focal power and the surface type of each lens, the center thickness of each lens and the axial distance between the lenses, the imaging quality of the vehicle is improved. While the imaging performance requirement of the five-piece lens is met, the total length of the lens and the radial size of each lens are reduced, and the lens group is miniaturized.