High beam lighting system and vehicle lamp

Abstract

The present invention provides a high beam illumination system and a vehicle lamp. The high beam illumination system includes a plurality of light sources (1) and a plurality of collimating lens parts. A plurality of collimating lenses are formed on the collimating lens parts. Each of the plurality of collimating lenses corresponding one-to-one to its corresponding light source (1) constitutes an optical unit. One optical unit includes at least one of the light sources (1). At least one of the plurality of collimating lenses corresponding one-to-one to at least one of the optical units can have an offset relative to the optical axis of one of its corresponding light sources (1), so that the illumination spots formed by the light emitted by the light source (1) projected through its corresponding collimating lenses are offset. The present invention adjusts the overlap degree between the illumination spots through the offset of the optical axis, so that the number of illumination spots superimposed in the middle area of the illumination light pattern is large, and the number of illumination spots superimposed in the two side areas is small.

Description

Technical Field

[0001] The present invention relates to vehicle lamps, and more particularly, to a high beam illumination system. In addition, the present invention also relates to a vehicle lamp including the high beam illumination system. Background Art

[0002] The application of LED light-emitting chips in vehicle lamp illumination is becoming more and more widespread. Since a single LED light-emitting chip cannot meet the requirements of vehicle lamp illumination for output luminous flux and illuminance value, multiple LED light-emitting chips are generally used in the illumination system of existing vehicle lamps to achieve vehicle lamp illumination.

[0003] Chinese Patent Application Publication No. CN104864333A discloses an optical module for a motor vehicle headlamp and a headlamp having such an optical module. The optical module of the motor vehicle headlamp includes a plurality of individually controllable semiconductor light sources arranged in a matrix for emitting light; a plurality of main optical units arranged in a matrix corresponding to these semiconductor light sources, and these main optical units are used to collect the light beams emitted by the semiconductor light sources and to generate a main light distribution on the light output surface of the main optical unit; and a common secondary optical unit that images the main light distribution as a secondary light distribution on the lane in front of the motor vehicle, so that the secondary light distribution illuminates the far region. In order to be able to reduce the structural height of the secondary optical unit without efficiency loss, a cylindrical optical unit with a cylindrical axis is arranged between the main optical unit and the secondary optical unit in the optical path of the optical module, and the cylindrical axis is oriented substantially horizontally.

[0004] In this solution, due to the matrix arrangement of multiple light sources and the use of a common secondary optical unit, the above-mentioned vehicle lamp system has the following defects:

[0005] 1. The illumination light pattern formed by the secondary optical unit corresponds to the arrangement of multiple light sources, and the illumination light pattern is also arranged in a matrix. The brightness of the light spots generated by each light source is basically the same, and it cannot meet the light pattern characteristics of the vehicle lamp illumination system where it is bright in the middle and dim on both sides.

[0006] 2. Since the light sources are arranged in a matrix, there is a certain gap between the light sources, resulting in a certain dark area between the multiple light spots of the final illumination light pattern, which is not conducive to the light pattern requirement of uniform transition of vehicle lamp illumination.

[0007] Although Chinese Patent Application Publication No. CN108131639A discloses a vehicle lamp lens group that adjusts the curvature of the lens to achieve at least partial overlap of light beams with each other, thereby improving the uniformity of the light beams projected by the lens array, it still cannot form an illumination light pattern that is bright in the middle and dim on both sides. Summary of the Invention

[0008] One problem to be solved by the present invention is to provide a high beam illumination system, which can obtain a headlight illumination light pattern with bright in the middle and dark on both sides by adjusting the overlap degree between illumination spots.

[0009] Another problem to be solved by the present invention is to provide a headlight, which can obtain a headlight illumination light pattern with bright in the middle and dark on both sides by adjusting the overlap degree between illumination spots.

[0010] To achieve the above object, on the one hand, the present invention provides a high beam illumination system, which includes a plurality of light sources and a plurality of collimating lens parts. A plurality of collimating lenses are formed on the collimating lens parts. The collimating lenses on the plurality of collimating lens parts correspond to each other one by one, and each collimating lens corresponds to at least one of the light sources. A plurality of collimating lenses corresponding to each other and their corresponding light sources constitute an optical unit. An optical unit includes at least one of the light sources. The optical axis of at least one of the plurality of collimating lenses corresponding to each other in at least one optical unit can be offset relative to the optical axis of one of its corresponding light sources, so that the illumination spots formed by the light rays emitted by the light source projected through its corresponding collimating lenses are offset. The illumination spots projected by each optical unit can be superimposed to form an illumination light pattern with bright in the middle and dark on both sides.

[0011] Specifically, the focus of the collimating lens is located on the light emitting surface of its corresponding light source.

[0012] Preferably, the collimating lens is a plano-convex lens, a hyperbolic lens or a cylindrical lens.

[0013] Preferably, each collimating lens part is an integrally formed part.

[0014] Preferably, the projection shape of the light emitting surface of the collimating lens located at the forefront in the optical unit is square, circular, rhombic, trapezoidal, parallelogram or triangular.

[0015] Specifically, the optical axis of the collimating lens is offset relative to the optical axis of one of its corresponding light sources in different directions.

[0016] Specifically, the optical axis of the collimating lens is offset by different distances relative to the optical axis of one of its corresponding light sources.

[0017] Further, the greater the offset distance of the optical axis of the collimating lens relative to the optical axis of one of its corresponding light sources, the greater the offset angle of its corresponding illumination spot.

[0018] Preferably, each of the light sources is adapted to be independently switched on and off.

[0019] Another technical problem to be solved by the present invention is to provide a vehicle lamp, which includes the above-mentioned high-beam lighting system.

[0020] Through the above technical solutions, the present invention achieves the following beneficial effects:

[0021] 1. By offsetting the optical axis to adjust the overlap degree between the illumination spots, the number of illumination spots superimposed in the middle area of the illumination light pattern is large, and the number of illumination spots superimposed in the two side areas is small, realizing a vehicle lamp illumination light pattern with a bright middle and dark sides. At the same time, the transition between the illumination spots is uniform, avoiding the generation of dark areas.

[0022] 2. In the preferred embodiment of the present invention, the larger the offset distance of the optical axis, the larger the offset angle of the illumination spot. This setting method is relatively simple compared with other methods, and can reduce the labor intensity of designers on the premise of achieving the purpose of a bright middle and dark sides in the overall illumination light pattern.

[0023] 3. In the preferred embodiment of the present invention, the collimating lens part is an integrally formed part, which ensures the relative position accuracy between the collimating lenses, reduces the positioning and installation error, and thus obtains a good light pattern effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0025] Figure 2 is Figure 1 the left view of

[0026] Figure 3 is Figure 1 the sectional view taken along the line A-A of

[0027] Figure 4 is Figure 1 the schematic diagram of the relative position relationship of the light sources in

[0028] Figure 5 is Figure 1 the schematic diagram of the relative position relationship of the primary collimating lenses in

[0029] Figure 6 is Figure 1 the schematic diagram of the relative position relationship of the secondary collimating lenses in

[0030] Figure 7 is Figure 6 the sectional view taken along the line B-B of

[0031] Figure 8 is the illumination spot diagram formed by the projection of the first light source and the collimating lenses in the embodiment of the present invention;

[0032] Figure 9It is the illumination spot diagram formed by the second light source and the collimating lens in the embodiment of the present invention;

[0033] Figure 10 It is the illumination spot diagram formed by the third light source and the collimating lens in the embodiment of the present invention;

[0034] Figure 11 It is the illumination spot diagram formed by the fourth light source and the collimating lens in the embodiment of the present invention;

[0035] Figure 12 It is the illumination spot diagram formed by the fifth light source and the collimating lens in the embodiment of the present invention;

[0036] Figure 13 It is the illumination spot diagram formed by the sixth light source and the collimating lens in the embodiment of the present invention;

[0037] Figure 14 It is the illumination spot diagram formed by the seventh light source and the collimating lens in the embodiment of the present invention;

[0038] Figure 15 It is the illumination spot diagram formed by the eighth light source and the collimating lens in the embodiment of the present invention;

[0039] Figure 16 It is the overall illumination light pattern diagram formed by the first to eighth light sources and the collimating lens in the embodiment of the present invention.

[0040] Explanation of reference numerals

[0041] 1 Light source

[0042] 11 First light source 12 Second light source

[0043] 13 Third light source 14 Fourth light source

[0044] 15 Fifth light source 16 Sixth light source

[0045] 17 Seventh light source 18 Eighth light source

[0046] 2 Primary collimating lens

[0047] 21 First primary collimating lens 22 Second primary collimating lens

[0048] 23 Third primary collimating lens 24 Fourth primary collimating lens

[0049] 25 Fifth primary collimating lens 26 Sixth primary collimating lens

[0050] 27 Seventh primary collimating lens 28 Eighth primary collimating lens

[0051] 3 Secondary collimating lens

[0052] 31st secondary collimating lens 32nd secondary collimating lens

[0053] 33rd secondary collimating lens 34th secondary collimating lens

[0054] 35th secondary collimating lens 36th secondary collimating lens

[0055] 37th secondary collimating lens 38th secondary collimating lens

[0056] 4 Radiator Detailed implementation manners

[0057] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0058] First of all, it should be noted that some orientation terms involved in the following description to clearly illustrate the technical solutions of the present invention, such as "upper", "lower", "left", "right", "front", "rear", etc. are all the meanings analogized according to the orientation when the high-beam lighting system of the present invention is applied to a vehicle. For example, the front of the vehicle head is the front, the rear of the vehicle tail is the rear. According to the driving habits in our country, the driving seat side is the left, the co-driver seat side is the right, the roof side is the upper, and the wheel side is the lower. The "light-emitting direction" is the irradiation direction of the light-emitting rays of the high-beam lighting system, which can be set according to the lighting function of the vehicle lamp to be realized. For example, the light-emitting direction of the high-beam lamp points to the front of the vehicle, while the light-emitting direction of the corner lamp is inclined to point to the outside of the vehicle.

[0059] In addition, the terms "first", "second",... "eighth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first", "second",... "eighth" may explicitly or implicitly include one or more of the said features.

[0060] Hereinafter, the optical axis direction of the light source is the normal direction of the geometric center of the light-emitting surface of the light source, and the optical axis of the lens is the axis passing through the focus of the lens and extending forward and backward along the light-emitting direction of the lens.

[0061] The high beam illumination system of the present invention includes a plurality of light sources 1 and a plurality of collimating lens parts. A plurality of collimating lenses are formed on the collimating lens parts, and the collimating lenses on the plurality of collimating lens parts correspond to each other one by one. Each pair of corresponding collimating lenses and its corresponding light source 1 form an optical unit. One optical unit includes at least one of the light sources 1. The optical axis of at least one of the collimating lenses corresponding to each other in at least one optical unit can be offset relative to the optical axis of one of its corresponding light sources 1, so that the illumination spots formed by the light emitted by the light source 1 projected through its corresponding collimating lenses are offset. By the offset, the overlap degree between the illumination spots can be adjusted, so that the number of overlapping illumination spots in the middle area of the illumination light pattern is large, and the number of overlapping illumination spots in the two side areas is small. Furthermore, after the illumination spots are superimposed, an illumination light pattern that is bright in the middle and dark on both sides can be formed.

[0062] Specifically, when the optical unit includes one light source 1, there are the following three setting forms of the collimating lens and the light source 1 in the optical unit: (1) The optical axes of the corresponding collimating lenses are all offset relative to the optical axis of the light source 1; (2) The optical axes of some collimating lenses are offset relative to the optical axis of the light source 1, and the optical axes of the remaining collimating lenses coincide with the optical axis of the light source 1; (3) The optical axes of the corresponding collimating lenses and the optical axis of the light source 1 all coincide.

[0063] When the optical unit includes a plurality of light sources 1, taking the optical axis of one of the light sources 1 as a reference, the setting form of the collimating lens and this light source 1 in the optical unit can also have the above three forms, and the other light sources 1 in this optical unit are adaptively arranged near this light source 1.

[0064] The forms of the plurality of optical units in the high beam illumination system of the present invention, except that they cannot all be in the form of (3), can be combined in any form or in a single form.

[0065] The focus of the collimating lens is located on or near the light emitting surface of its corresponding light source 1, preferably at the center of the light emitting surface of the light source 1, so that the light emitted by the light source 1 can be projected into an illumination spot through its corresponding collimating lens. Specifically, the collimating lens is a plano-convex lens, a hyperbolic lens or a cylindrical lens. The collimating lenses on one collimating lens part can be any one of the above lenses. However, since the cylindrical lens can only converge light in one direction, the combination of the collimating lenses in each optical unit only needs to satisfy the requirement of converging light in the up, down, left and right directions, and it is necessary to avoid all the collimating lenses being cylindrical lenses extending in the same direction.

[0066] Based on the above technical solution, each light source 1 can be fully powered on at full power. By having a large number of overlapping illumination spots in the middle area and a small number of overlapping illumination spots in the large-angle areas (both side areas), a vehicle headlight illumination light pattern with bright middle and dark sides is achieved, which not only meets the vehicle headlight illumination requirements but also avoids the formation of dark areas between the illumination spots.

[0067] In special cases, the illumination spots projected by adjacent light sources 1 can even completely overlap, further enhancing the brightness of the middle light pattern.

[0068] To ensure the relative position accuracy between the collimating lenses and reduce the positioning and installation errors, each collimating lens part is an integrally formed part. Of course, a split structure can also be adopted according to needs.

[0069] According to different requirements of customers for the appearance shape of the vehicle headlight, the projected shape of the light-emitting surface of the collimating lens located at the frontmost of the optical unit is square, circular, diamond-shaped, trapezoidal, parallelogram-shaped or triangular. Compared with only using a lens with a single monotonous shape in the prior art, the appearance shape is more beautiful and more flexible and changeable.

[0070] As an implementation manner of the present invention, the optical axis of the collimating lens is offset in different directions relative to the optical axis of one of the corresponding light sources 1. The optical axis of the collimating lens is offset by different distances relative to the optical axis of one of the corresponding light sources 1. The greater the offset distance of the optical axis of the collimating lens relative to the optical axis of one of the corresponding light sources 1, the greater the offset angle of the corresponding illumination spot. At this time, the collimating lens is preferably a plano-convex lens. It should be noted that both the illumination spot and the illumination light pattern refer to the light pattern formed by the light rays projected on the photometric screen. Since the light rays all have a divergence angle, the position of the light pattern on the photometric screen is also calibrated in terms of angle.

[0071] To facilitate heat dissipation, each light source 1 is dispersedly installed on the circuit board and fixed to the radiator 4.

[0072] During the processing and installation process, the size and brightness of a single illumination spot can be adjusted by adjusting the distance between the light source 1 and each collimating lens part in the optical axis direction. For example, for the vehicle headlights of some vehicle models that require large spots and high brightness, the distance between each collimating lens part can be processed to be smaller, and during the installation process, its distance relative to the light source 1 is also smaller; for the vehicle headlights of some vehicle models that do not require large spots and high brightness, the distance between each collimating lens part can be processed to be larger, and during the installation process, its distance relative to the light source 1 is also larger. That is, the present invention can produce products of various specifications according to needs.

[0073] To implement the adaptive high beam function and prevent the lighting light from dazzling the oncoming vehicle or pedestrian, each of the above light sources 1 is adapted to be independently switched on and off, so that when there is a vehicle or pedestrian in front of or oncoming to the vehicle, the corresponding light source 1 is turned off, and the corresponding lighting area becomes a dark area.

[0074] In a second aspect of the present invention, a vehicle lamp is provided, which includes the above high beam lighting system.

[0075] As can be seen from the above description, the present invention has the following advantages: by adjusting the overlap degree between the illumination spots through the relative offset of the optical axes of the optical elements in the optical unit, the number of illumination spots superimposed in the middle area of the illumination light pattern is large, and the number of illumination spots superimposed in the two side areas is small, realizing a vehicle lamp illumination light pattern that is bright in the middle and dark on both sides. At the same time, the light patterns are evenly transitioned to avoid the generation of dark areas; in a preferred embodiment of the present invention, the greater the offset distance of the optical axis, the greater the offset angle of the illumination spot. This setting method is relatively simple compared with other methods, and can reduce the labor intensity of designers on the premise of achieving the purpose of making the overall illumination light pattern bright in the middle and dark on both sides; in a preferred embodiment of the present invention, the collimating lens part is an integrally formed part, which ensures the relative position accuracy between the collimating lenses, reduces the positioning and installation error, and thus obtains a good light pattern effect; in addition, the size and brightness of the light pattern can also be adjusted by adjusting the distance between the light source 1 and each collimating lens part in the optical axis direction.

[0076] The following is a preferred embodiment of the present invention.

[0077] See Figures 1-7As shown in the figure, the high beam lighting system of the present invention includes a plurality of light sources 1, a plurality of primary collimating lenses 2 located on the same collimating lens part, and a plurality of secondary collimating lenses 3 located on the same collimating lens part. The plurality of light sources 1 are arranged in an array, and the light sources 1, the primary collimating lenses 2, and the secondary collimating lenses 3 are in one-to-one correspondence and are arranged in sequence along the light-emitting direction. The optical axes of one or more of the light sources 1, its corresponding primary collimating lens 2, and the secondary collimating lens 3 coincide to project one or more illumination spots located at or near the middle position of the illumination pattern. For the remaining light sources 1, the optical axes of the corresponding primary collimating lens 2 and the secondary collimating lens 3 coincide, and the optical axis of the third one is offset relative to the two coincident optical axes to project an illumination spot offset relative to the illumination spot located at or near the middle position of the illumination pattern. For example, the optical axis of the light source 1 and the optical axis of the secondary collimating lens 3 coincide, and the optical axis of the primary collimating lens 2 is relatively offset, or the optical axis of the primary collimating lens 2 and the optical axis of the secondary collimating lens 3 coincide, and the optical axis of the light source 1 is relatively offset, or the optical axis of the light source 1 and the optical axis of the primary collimating lens 2 coincide, and the optical axis of the secondary collimating lens 3 is relatively offset. For the convenience of processing and installation, in practical applications, the optical axes of the primary collimating lens 2 and the secondary collimating lens 3 coincide, and the optical axis of the light source 1 is relatively offset is preferred.

[0078] Specifically, as Figures 4-6 shown, the optical axes of two of the light source 1, the primary collimating lens 2 corresponding to it, and the secondary collimating lens 3 coincide, and the optical axis of the third one is offset relative to the two coincident optical axes in different directions and / or with different distances. For example, the light source 1 above the light source 1 with the coincident optical axes of the three is offset upward relative to the corresponding primary collimating lens 2 and secondary collimating lens 3, the light source 1 below the light source 1 with the coincident optical axes of the three is offset downward relative to the corresponding primary collimating lens 2 and secondary collimating lens 3, the offset distance of the light source 1 close to the light source 1 with the coincident optical axes of the three is small, and the offset distance of the light source 1 far from the light source 1 with the coincident optical axes of the three is large. No matter in what way, the ultimate goal is to make the overall illumination pattern bright in the middle and dark on both sides. Preferably, the farther the light source 1, the primary collimating lens 2, and the secondary collimating lens 3 are from the light source 1 with the coincident optical axes, the greater the relative offset distance of their optical axes.

[0079] As a further preferred embodiment of the present invention, the high beam lighting system includes a radiator 4, a circuit board installed on the radiator 4, eight light sources 1 arranged in an array on the circuit board, and primary collimating lenses 2 and secondary collimating lenses 3 corresponding to the eight light sources 1 respectively one by one, that is, there are also eight primary collimating lenses 2 and secondary collimating lenses 3 respectively. As Figures 4-6As shown, the optical axes of the first light source 11, its corresponding first primary collimating lens 21, and the first secondary collimating lens 31 coincide, and the illumination spot formed by their projection is as Figure 8 shown; the optical axes of the remaining corresponding second to eighth primary collimating lenses 2 and their corresponding light sources 1 coincide respectively. That is, in order to ensure that the appearances of the eight secondary collimating lenses 3 as light-emitting lenses remain unchanged, by offsetting the optical axes of the internal light sources 1 and the primary collimating lenses 2 relative to the optical axes of their corresponding secondary collimating lenses 3, an illumination light pattern with bright in the middle and dark on both sides can be obtained. Specifically, the optical axis of the second light source 12 is offset 0.5 mm to the right relative to the optical axis of its corresponding second secondary collimating lens 32, and the illumination spot formed by its projection is as Figure 9 shown; the optical axis of the third light source 13 is offset 1 mm to the right relative to the optical axis of its corresponding third secondary collimating lens 33, and the illumination spot formed by its projection is as Figure 10 shown; the optical axis of the fourth light source 14 is offset 0.5 mm downward relative to the optical axis of its corresponding fourth secondary collimating lens 34, and the illumination spot formed by its projection is as Figure 11 shown; the optical axis of the fifth light source 15 is offset 0.5 mm to the left relative to the optical axis of its corresponding fifth secondary collimating lens 35, and the illumination spot formed by its projection is as Figure 12 shown; the optical axis of the sixth light source 16 is offset 1 mm to the left relative to the optical axis of its corresponding sixth secondary collimating lens 36, and the illumination spot formed by its projection is as Figure 13 shown; the optical axis of the seventh light source 17 is offset 1 mm to the left relative to the optical axis of its corresponding seventh secondary collimating lens 37, and the illumination spot formed by its projection is as Figure 14 shown; the optical axis of the eighth light source 8 is offset 2 mm to the left relative to the optical axis of its corresponding eighth secondary collimating lens 38, and the illumination spot formed by its projection is as Figure 15 shown. The overall illumination light pattern finally formed by the projection of the eight groups of light sources 1 and collimating lenses is as Figure 16 shown. Obviously, the brightness in the middle of the overall illumination light pattern is greater than that on both sides, and there is no obvious dark area.

[0080] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0081] In addition, it should be noted that in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0082] In addition, any combination can be made among various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should equally be regarded as the content disclosed by the present invention.

Claims

1. A high beam illumination system, characterized in that, Comprising a plurality of light sources (1) and a plurality of collimating lens parts, a plurality of collimating lenses are formed on the collimating lens parts, the collimating lenses on the plurality of collimating lens parts correspond to each other one by one, and the collimating lenses corresponding to each other one by one and the corresponding light source (1) thereof constitute an optical unit. One optical unit includes at least one light source (1). At least one of the collimating lenses corresponding to each other one by one in at least one optical unit can be offset relative to the optical axis of one of the corresponding light sources (1), so that the illumination spots formed by the light emitted by the light source (1) projected through the corresponding collimating lenses are offset. The illumination spots formed by projecting each optical unit can be superimposed to form an illumination pattern with a bright middle and dark sides; wherein, When the optical unit includes one light source (1), the arrangement form of the collimating lens and the light source (1) in the optical unit can be: the first form: the optical axes of the collimating lenses corresponding to each other one by one are all offset relative to the optical axis of the light source (1); or, the second form: the optical axes of some collimating lenses are offset relative to the optical axis of the light source (1), and the optical axes of the remaining collimating lenses coincide with the optical axis of the light source (1); or, the third form: the optical axes of the collimating lenses corresponding to each other one by one coincide with the optical axis of the light source (1); When the optical unit includes a plurality of light sources (1), taking the optical axis of one of the light sources (1) as a reference, the arrangement form of the collimating lens and the light source (1) in the optical unit can be the first form, the second form or the third form, and the other light sources (1) in the optical unit are adaptively arranged near the light source (1); The forms of the plurality of optical units in the high beam illumination system can be combined in any form or in a single form, except that all cannot be the third form.

2. The high beam lighting system according to claim 1, characterized in that The focal point of the collimating lens is located on the light emitting surface of the corresponding light source (1).

3. The high beam lighting system according to claim 1, characterized in that The collimating lens is a plano-convex lens, a hyperbolic lens or a cylindrical lens.

4. The high beam lighting system according to claim 1, wherein Each collimating lens part is an integrally formed part.

5. The high beam lighting system according to claim 1, characterized in that, The projected shape of the light emitting surface of the collimating lens located at the forefront in the optical unit is circular, trapezoidal, parallelogram or triangular.

6. The high beam lighting system according to any one of claims 1 to 5, characterized in that, The optical axis of the collimating lens is offset in different directions relative to the optical axis of one of the corresponding light sources (1).

7. The high beam lighting system according to any one of claims 1 to 5, characterized in that The optical axis of the collimating lens is offset by different distances relative to the optical axis of one of the corresponding light sources (1).

8. The high beam lighting system according to any one of claims 1 to 5, characterized in that Each light source (1) is adapted to be independently switched on and off.

9. A vehicle lamp, characterized in that, Comprising the high beam illumination system according to any one of claims 1 to 8.

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