Automobile main lamp capable of intelligently adjusting irradiation range

Abstract

The utility model discloses an automobile main lamp capable of intelligently adjusting an irradiation range and a control system of the automobile main lamp, and the automobile main lamp is provided with a plurality of groups of lamp tube units which can classify and distinguish road conditions into determined working modes according to an independent analysis mode of the road conditions. According to a fixed guide working mode, the change of a lamp tube is reduced, the stability of lamplight is improved, the service life of the high-speed vehicle lamp is prolonged, the intelligent effect is improved, when the high-speed vehicle lamp is used, the irradiation range, the irradiation angle and the irradiation height of the lamplight can be controlled in a zoning mode through dispersion and aggregation of a light source by the replaceable double lenses, and the illumination efficiency is improved. Therefore, different output light modes can be realized by adjusting the brightness of the lamp point by matching with different power voltages, and the problems that the existing vehicle lamp can only adjust any several modes during use, and the adjusting effect on different road conditions is not fine enough are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of automobile lamps, in particular to a main automobile lamp capable of intelligently adjusting the illumination range. Background Art

[0002] Headlights, which are lamps used for vehicle lighting, are like the eyes of a car. The lighting method of headlights has become the most closely related link to vehicle road safety and driver comfort.

[0003] With the development of automation technology, a headlamp system AFS has been developed. AFS is a new headlamp technology that has gradually developed in recent years. The effective coverage of the light will be much wider, thereby increasing the active safety of the car. The AFS headlamp system is to adjust the light of the headlamp according to the road and weather conditions. For example, a long ultra-high beam is required on the highway so that obstacles ahead can be discovered earlier when driving at high speed; while a short and wide beam is required in the city so that pedestrians and cyclists walking on the roadside can be seen.

[0004] The principles of existing intelligent headlights are similar to those of the AFS system. They obtain the current road condition information through simple signal recognition combined with vehicle speed, and adjust the light illumination mode by activating the corresponding mode according to fixed conditions. In addition, there are only 2 to 4 simple lighting modes. The adjustment effect is not detailed enough for different road conditions, the lighting scheme for the opposite lane is relatively vague, the intelligence level is not high, and it does not contribute much to the driver's comfort and road safety. In view of the above problems, a car main headlight with intelligent adjustment of the illumination range and its control system are proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a main vehicle lamp with intelligently adjustable illumination range to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a main headlight of a car with intelligently adjustable illumination range, comprising a reflective bowl for concentrating and reflecting a light source, an adjusting mechanism installed inside the reflective bowl, a headlight unit capable of adjusting the illumination angle installed at the front end of the adjusting mechanism, a partition lens sleeved outside the headlight unit, and the inner side of the partition lens rotatably mounted outside the adjusting mechanism;

[0007] The reflective bowl includes a lampshade, the adjustment mechanism includes a base, a connecting frame is installed at the front end of the base, and a steering adjustment platform is installed between the base and the connecting frame;

[0008] The vehicle lamp unit comprises a circuit board, the circuit board is assembled and fixed with a connecting frame, a light point is welded on the outside of the circuit board, and a concave lens is installed in the irradiation direction of the light point;

[0009] The partition lens is arranged in the irradiation direction of the concave lens, and a partition convex body is integrally formed outside or inside the partition lens.

[0010] Preferably, a mounting hole is provided at the rear of the lampshade, a screw is welded at the rear of the base, and the screw passes through the mounting hole and is screwed with a nut.

[0011] Preferably, hinge shafts are welded on both sides of the base, and the hinge shafts can hinge two adjacent bases.

[0012] Preferably, a fixing frame is fixedly mounted on the front end of the base, an annular frame is welded to the front end of the fixing frame, a transmission roller is rotatably mounted inside the annular frame, and the outer wall of the transmission roller is engaged with the inner wall of the partition lens.

[0013] Preferably, a driving mechanism 1 is installed on the outer side of the axis of a driving roller closest to the fixed frame, and the driving mechanism 1 rotates to drive the driving roller to rotate.

[0014] Preferably, a sliding plate is welded to the bottom of the front end of the fixed frame, and a sliding frame is slidably assembled inside the sliding plate and on the inner side of the fixed frame, a driving mechanism 2 capable of vertical rotation (z, y plane) is assembled at the center of the sliding frame, a driving mechanism 3 capable of horizontal rotation (x, y plane) is assembled on the outer side of the rotating end of the driving mechanism 2, a driving mechanism 4 capable of vertical rotation (x, z plane) is assembled on the outer side of the driving mechanism 3, and the rotating end of the driving mechanism 4 is fixedly assembled to the connecting frame.

[0015] Preferably, a telescopic rod is installed between the sliding plate and the sliding frame.

[0016] Preferably, a first support leg is fixedly mounted on the outer side of the circuit board, and the first support leg is used to fix the concave lens. A second support leg is fixedly mounted on the inner side of the circuit board, and the second support leg is used to fix the lamp point. The rear side of the lamp point is fitted with a fitted heat collecting end, and the rear of the fitted heat collecting end is connected to the heat dissipation end fixed to the outer wall of the connecting frame through a pipeline. The outer side of the heat dissipation end has an external radiator to drive heat dissipation.

[0017] Preferably, the partitioned lens comprises a basic lens ring, and the number of partitioned convex bodies integrally formed on the inner side or the outer side of the basic lens ring is at least two.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention sets up a lamp with multiple groups of lamp tube units, which can classify road conditions into determined working modes according to the autonomous analysis mode of road conditions; when the road conditions do not change, it works in a fixed working mode, reduces lamp tube changes, improves the stability of the light, provides a long service life of the lamp, and improves the intelligent effect; when in use, the light source is dispersed and aggregated by the replaceable double lens, so that the illumination range, illumination angle and illumination height of the light can be zoned and controlled; therefore, by adjusting the brightness of the lamp point with different power voltages, different output light modes can be achieved, which effectively solves the problem that the existing lamps can only be adjusted to any few modes when in use, and the adjustment effect is not detailed enough for different road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the vehicle light unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the assembly of the vehicle light unit of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0024] Figure 6 This is a schematic diagram of the assembly of the vehicle light adjustment component of the utility model;

[0025] Figure 7 This is a schematic diagram of the assembly of the adjustment mechanism of the utility model;

[0026] Figure 8 It is a right view of the partition lens of the utility model.

[0027] In the figure: 1. reflective bowl, 11. lampshade, 12. mounting hole, 2. adjustment mechanism, 21. base, 22. hinge shaft, 23. fixed frame, 24. sliding frame, 25. transmission roller, 26. driving mechanism 1, 27. driving mechanism 2, 28. driving mechanism 3, 29. driving mechanism 4, 210. connecting frame, 211. telescopic rod, 3. headlight unit, 31. circuit board, 32. support leg 1, 33. concave lens, 34. support leg 2, 35. lamp point, 36. bonding heat collecting end, 37. heat dissipation end, 4. partition lens, 41. basic lens ring, 42. partition convex body. DETAILED DESCRIPTION

[0028] See also Figure 1-8 The utility model provides a technical solution: a main headlight of a car with intelligently adjustable illumination range, comprising a reflective bowl 1 for concentrating and reflecting light sources, an adjusting mechanism 2 is installed inside the reflective bowl 1, a headlight unit 3 capable of adjusting the illumination angle is installed at the front end of the adjusting mechanism 2, a partition lens 4 is sleeved on the outside of the headlight unit 3, and the inner side of the partition lens 4 is rotatably installed on the outside of the adjusting mechanism 2;

[0029] The reflector bowl 1 includes a lampshade 11, and the adjustment mechanism 2 includes a base 21. A connecting frame 210 is installed at the front end of the base 21, and a steering adjustment platform is installed between the base 21 and the connecting frame 210.

[0030] The vehicle lamp unit 3 includes a circuit board 31, which is assembled and fixed to the connecting frame 210. A light point 35 is welded on the outside of the circuit board 31, and a concave lens 33 is installed in the irradiation direction of the light point 35.

[0031] The partition lens 4 is arranged in the irradiation direction of the concave lens 33 , and a partition convex body is integrally formed outside or inside the partition lens 4 .

[0032] The utility model provides a lamp with multiple groups of lamp tube units 3, which can classify road conditions into determined working modes according to the autonomous analysis mode of road conditions. When the road conditions do not change, it works according to the fixed working mode, reduces the changes of lamp tubes, improves the stability of lights, provides a long service life of the lamp, and improves the intelligent effect. When in use, the light source is dispersed and aggregated by replaceable double lenses, so that the illumination range, illumination angle and illumination height of the light can be zoned and controlled. Therefore, by adjusting the brightness of the lamp point 35 with different power voltages, different output light modes can be achieved, which effectively solves the problem that the existing lamp can only be adjusted to any few modes when in use, and the adjustment effect is not detailed enough for different road conditions.

[0033] Specifically, a mounting hole 12 is assembled at the rear of the lampshade 11, a screw is welded at the rear of the base 21, and the screw passes through the mounting hole 12 and is screwed with a nut. When in use, the lampshade 11 and the external decorative transparent cover are installed by screwing, and a rubber strip is used to seal the two parts. During repair and maintenance, after removing the bolts, the nuts can be removed. After removing the base 21, the adjustment frame mechanism 2, the headlight unit 3, and the partition lens 4 can be removed for easy maintenance.

[0034] Specifically, hinge shafts 22 are welded on both sides of the base 21, and the hinge shafts 22 can hinge two adjacent bases 21. The bases 21 are hinged to each other using hinge points to form a chain-like structure. During repair and maintenance, the chain-like structure can be removed and the headlight unit 3 can be opened by flipping, so that the contents inside the headlight unit 3 can be replaced or maintained. The operation is convenient and quick. The purpose of adopting the overall dismantling solution is that since the heat dissipation systems are connected, the overall disassembly and assembly method can be adopted during repair or maintenance, which can reduce the steps of removing components and is more convenient to use.

[0035] Specifically, a fixing frame 23 is fixedly mounted on the front end of the base 21, and an annular frame is welded on the front end of the fixing frame 23. A transmission roller 25 is rotatably mounted inside the annular frame. The outer wall of the transmission roller 25 is meshed with the inner wall of the partition lens 4. When in use, the driving mechanism 26 drives the turbine to rotate by a set of micro-stepping motors using a worm structure. The turbine and the transmission roller 25 are fixedly assembled to drive the transmission roller 25 to rotate, thereby achieving the purpose of driving the partition lens 4 to rotate. The outer part of the transmission roller 25 is a silicone structure. There is a high friction between the transmission roller 25 and the inner ring of the lens. In addition, multiple groups of passive transmission rollers 25 are assembled at positions distributed concentrically with the inside of the partition lens 4. By utilizing the elastic force of the material itself and the position effect, when the powered transmission roller 25 rotates, the partition lens 4 can rotate in the vertical direction.

[0036] The driving roller 25 has a taper between the outer side and the inner side, and the diameter of the middle part is smaller than the diameter of the outer side, so as to ensure that the partition lens 4 is kept in the middle position.

[0037] Specifically, a driving mechanism 26 is installed on the outer side of the axis of a driving roller 25 closest to the fixed frame. The driving mechanism 26 rotates to drive the driving roller 25 to rotate. The entire section of the fixed frame 23 is an open-loop structure, and a sliding bracket structure is fixed on the inner side of the front end of the open-loop structure. When the sliding frame 24 slides, it serves as a sliding support structure at the top to assist in stabilizing the sliding frame 24.

[0038] Specifically, a sliding plate is welded to the bottom of the front end of the fixed frame 23, and a sliding frame 24 is slidably mounted inside the sliding plate and inside the fixed frame 23. A driving mechanism 27 capable of vertical rotation (z, y plane) is mounted at the center of the sliding frame 24, and a driving mechanism 3 28 capable of horizontal rotation (x, y plane) is mounted on the outer side of the rotating end of the driving mechanism 27, and a driving mechanism 4 29 capable of vertical rotation (x, z plane) is mounted on the outer side of the driving mechanism 3 28. The rotating end of the driving mechanism 4 29 is fixedly mounted to the connecting frame 210, and the overall structure is perpendicular to the base 21, and the direction of the opening of the front end of the fixed frame 23 is the positive direction of the x-axis. Figure 1The top in the middle is the positive direction of the z-axis, and the right side of the intersection perpendicular to the x-axis and z-axis is the positive direction of the y-axis.

[0039] A telescopic rod 211 is installed between the sliding plate and the sliding frame 24. The telescopic rod 211 is electrically driven to drive the sliding frame 24 to move forward and backward along the x-axis direction, and is used to adjust the distance between the light point 35 and the concave lens 33. The change in the distance between the light point 35 and the concave lens 33 causes the light emitted by the light point to move between 1 times the focal length and 2 times the focal length, thereby adjusting the parallel irradiation and outward irradiation of the light source.

[0040] The outer side of the circuit board 31 is fixedly equipped with a support leg 1 32, and the support leg 1 32 is used to fix the concave lens 33. The inner side of the circuit board 31 is fixedly equipped with a support leg 2 34, and the support leg 2 34 is used to fix the lamp point 35. The rear side of the lamp point 35 is fitted with a heat collecting end 36. The rear of the heat collecting end 36 is connected to a heat dissipation end 37 fixed to the outer wall of the connecting frame 210 through a pipeline. The outer side of the heat dissipation end 37 has an external radiator to drive heat dissipation.

[0041] The whole heat dissipation system includes a radiator with heat sink located at the outermost part of the lamp, combined with a motor drive to assist heat dissipation, a condenser attached to the back of the radiator, and the outer side of the condenser is connected to each heat dissipation end 37 through a pipeline.

[0042] The heat dissipation end is connected to the heat collection end 36 by a pipeline, the adjacent heat dissipation ends 37 are connected by a hose, the two sides of the outermost heat dissipation end 37 are also connected to the condenser by a hose, and self-sealing joints are installed between the hoses. Therefore, when the pipeline between the condenser and the heat dissipation end 37 is disconnected, the self-sealing joints will automatically seal the cavities at both ends to prevent leakage of the cooling medium inside the entire condensation system.

[0043] The cooling medium will evaporate after absorbing heat inside the heat collecting end 36, and its evaporated steam will quickly diffuse from the top to the inside of the cavity of the heat dissipating end 37, and circulate and connect with the condenser. After the condenser dissipates heat, the cooling medium will release the heat and condense, and through the capillary structure set at the bottom, it will use the capillary phenomenon to guide the flow to the inside of the heat collecting end 36 to continue the next cycle. It has good heat dissipation effect and strong sealing effect. The lamp is completely isolated from the outside air to prevent dust from entering and affecting the lighting.

[0044] The partition lens 4 includes a basic lens ring 41, and the number of partition convex bodies 42 integrally formed on the inner or outer side of the basic lens ring 41 is at least 2. The outer partition convex body 42 of the partition lens 4 can be a convex structure or a concave structure, and can be set according to the adjustment requirements of the light propagation angle. For example, when the outer side is set to a convex body and a single partition convex body 42 forms a convex lens, the light source emitted from the concave lens 33 will be further aggregated according to the spacing to concentrate and improve the brightness, which is suitable for long-distance illumination. When a single partition is a concave lens, the two sets of concave lenses will diverge the emitted light to increase the illumination range, and through the deflection of the light source, a large-area divergent illumination light source with different left and right deflection brightness can be realized at the position of the concave lens partition convex body 42 of the partition lens 4, which can avoid affecting pedestrians on the opposite side and can also illuminate the nearby environment over a large range. It is often used for close-range illumination effects under low driving speed conditions without external lights.

[0045] A control system for a main vehicle lamp capable of intelligently adjusting the illumination range, comprising a road condition recognition system and a drive adjustment system;

[0046] The road condition recognition system includes road condition collection peripherals, information processing system and AI core analysis system;

[0047] The driving and regulating system includes a main control unit, an electric signal modulator, a controller and a wire;

[0048] The complete steps of intelligently adjusting the illumination range of the main headlights of a car include the following steps:

[0049] Step 1: Collect information. The road condition collection province collects information around the vehicle through images, radar reflections, sound collection, photosensitive sensor collection, etc., and transmits it to an information processing system with an independent processor. The information processing system fixes and organizes all the collected information such as road obstacles, road condition categories, oncoming lanes and shoulder positioning, oncoming lane vehicles, road condition personnel, etc. according to the algorithm;

[0050] Step 2: Information processing: The collected and organized information is transmitted to the AI ​​core analysis system. The AI ​​core analysis system uses an independent processor and a regularly updated algorithm to analyze and organize the road conditions at the front end of the road into different working modes. The main working modes include but are not limited to: independent driving, oncoming vehicles, parallel driving in the same direction, non-standard vehicle driving, and pedestrian mixed driving mode, and the road conditions correspond to different working modes;

[0051] Step 3: Car light control, according to the determined working mode, in a fixed time period, different working modes operate at the angle determined in the mode through different driving mechanisms, and change according to different parameters in the mode, driving the light point 35 to output the direction of the light and the scattered and concentrated illumination of the light source.

[0052] The peripherals for collecting road conditions include cameras to acquire images, short-range radars to acquire the distance to surrounding obstacles, lidars to measure the real-time distance changes and contours between long-distance positions and vehicles, thermal imagers to distinguish images of all animal categories in the surrounding environment, sound sensors to acquire external sound sources, and photosensitive sensors to capture external light sources. In the case of a time synchronizer, all the above information collected at the same time point will be determined and classified through the intervention of the background AI system, in pairs or in combination of multiples, to determine the categories of different environments.

[0053] For example, when driving on a county-level highway in the wild without street lights, the camera and light-sensitive sensor can know the specific brightness and even weather information of the current driving section by combining the regional positioning information and time information, and can use long-range light or medium-range light instructions according to the road conditions. In combination with the radar to read the shape of the surrounding environment, combined with the camera image and thermal imaging, the vehicles, people and animals on the opposite side of the road can be analyzed. For example, thermal imaging combined with the image finds the image contour that is different from the ambient temperature. The contour is combined with the radar irradiation shape to add fitting points for analysis, determine the organism, and according to the height, length and relative displacement speed, combined with the road moving position, it can identify humans crossing the road, animals crossing the road or animals walking along the road. At this time, the close-range large-scale irradiation mode will be automatically switched according to the situation of the animal;

[0054] When driving, the lidar scans in a phased array in front of the vehicle and transmits back for analysis all the distances ahead in the driving direction. AI receives data in a virtual space with the radar position as the origin, determines the virtual data point position based on the phase angle and length of the phased array scan data, and generates a contour in real time at a fixed distance in a planar shape. When a planar virtual obstacle with a large approach rate is found, the height and width information can be combined with the camera image to determine the oncoming vehicle or the vehicle following in front, and then send a lighting change command to the lamp to adjust the lighting to avoid using long-range lighting to affect the oncoming drivers.

[0055] Independent driving, passing vehicles, parallel driving in the same direction, non-standard vehicle driving and mixed pedestrian driving modes;

[0056] When there are pedestrians, non-motor vehicles or motor vehicles on the opposite road, the lighting range shall be designed according to the long-range lighting to avoid irradiating oncoming vehicles and non-motor vehicles and pedestrians driving or walking in the opposite direction;

[0057] When driving independently, the long-distance concentrated group illumination is supplemented by the short-distance scattered light. The headlight unit 3 illuminates in two modes at the same time, monitoring the long-distance road conditions while illuminating the short-distance roadside conditions to ensure the best night driving vision;

[0058] When following a vehicle, turn on the short-range and diffuse lights, and turn them toward the shoulder to illuminate the road conditions facing the driver, to prevent long-range lights from affecting the rearview mirror of the vehicle ahead.

[0059] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A main headlight for a car with intelligently adjustable illumination range, comprising a reflective bowl (1) for concentrating and reflecting a light source, characterized in that: The reflective bowl (1) is internally equipped with an adjustment mechanism (2), the front end of the adjustment mechanism (2) is equipped with a headlight unit (3) capable of adjusting the irradiation angle, the outside of the headlight unit (3) is sleeved with a partition lens (4), and the inner side of the partition lens (4) is rotatably mounted on the outside of the adjustment mechanism (2); The reflective bowl (1) comprises a lampshade (11), the adjustment mechanism (2) comprises a base (21), a connecting frame (210) is mounted at the front end of the base (21), and a steering adjustment platform is mounted between the base (21) and the connecting frame (210); The vehicle lamp unit (3) comprises a circuit board (31), the circuit board (31) being assembled and fixed to a connecting frame (210), a light point (35) being welded to the outside of the circuit board (31), and a concave lens (33) being mounted in the irradiation direction of the light point (35); The partition lens (4) is arranged in the irradiation direction of the concave lens (33), and a partition convex body is integrally formed outside or inside the partition lens (4).

2. The main vehicle lamp with intelligently adjustable illumination range according to claim 1, characterized in that: The rear of the lampshade (11) is equipped with a mounting hole (12), the rear of the base (21) is welded with a screw rod, and the screw rod passes through the mounting hole (12) and is screwed with a nut.

3. The main vehicle lamp with intelligently adjustable illumination range according to claim 1, characterized in that: Hinge shafts (22) are welded on both sides of the base (21), and the hinge shafts (22) are capable of hinge-connecting two adjacent bases (21).

4. The main vehicle lamp with intelligently adjustable illumination range according to claim 1, characterized in that: A fixing frame (23) is fixedly mounted on the front end of the base (21), an annular frame is welded to the front end of the fixing frame (23), a driving roller (25) is rotatably mounted inside the annular frame, and the outer wall of the driving roller (25) is engaged with the inner wall of the partition lens (4).

5. The main vehicle lamp with intelligently adjustable illumination range according to claim 4, characterized in that: A driving mechanism (26) is mounted on the outer side of the axis of a driving roller (25) closest to the fixed frame, and the driving mechanism (26) rotates to drive the driving roller (25) to rotate.

6. The main vehicle lamp with intelligently adjustable illumination range according to claim 4, characterized in that: A sliding plate is welded to the bottom of the front end of the fixed frame (23), and a sliding frame (24) is slidably mounted inside the sliding plate and inside the fixed frame (23). A second driving mechanism (27) capable of vertical rotation is mounted at the center of the sliding frame (24), and a third driving mechanism (28) capable of horizontal rotation is mounted on the outer side of the rotating end of the second driving mechanism (27), and a fourth driving mechanism (29) capable of vertical rotation is mounted on the outer side of the third driving mechanism (28), and the rotating end of the fourth driving mechanism (29) is fixedly mounted to the connecting frame (210).

7. The main vehicle lamp with intelligently adjustable illumination range according to claim 6, characterized in that: A telescopic rod (211) is installed between the sliding plate and the sliding frame (24).

8. The main vehicle lamp with intelligently adjustable illumination range according to claim 1, characterized in that: The outer side of the circuit board (31) is fixedly equipped with a support leg (32), and the support leg (32) is used to fix the concave lens (33). The inner side of the circuit board (31) is fixedly equipped with a support leg (34), and the support leg (34) is used to fix the lamp point (35). The rear side of the lamp point (35) is fitted with a fitted heat collection end (36), and the rear side of the fitted heat collection end (36) is connected to a heat dissipation end (37) fixed to the outer wall of the connecting frame (210) through a pipeline. The outer side of the heat dissipation end (37) has an external radiator to drive heat dissipation.

9. The main vehicle lamp with intelligently adjustable illumination range according to claim 1, characterized in that: The partition lens (4) comprises a basic lens ring (41), and at least two partition convex bodies (42) are integrally formed on the inner side or the outer side of the basic lens ring (41).

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