Optical system for efficiently increasing high beam illumination width

Abstract

The optical system comprises a light reflecting bowl, light sources and outer lenses, the light sources and the light reflecting bowl arranged at the two ends are adjusted, so that light rays of the two light sources in each second optical unit jointly act on the corresponding outer lenses, and the light rays of the two light sources act on the outer lenses. In each group of first optical units, light rays of one light source act on the corresponding outer lens, the light rays emitted by the light sources are reflected by the reflective bowls and then refracted by the outer lens areas, so that a light type meeting the requirements of high beam center brightness and high beam broadening is formed, the attractiveness of the outer lenses is ensured, the space is reasonably utilized, the high beam light type is wide and bright, and the high beam quality is improved. And the safety of night driving is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle lamp modules, and more specifically, to an optical system for efficiently improving the width of high beam illumination. Background Art

[0002] With the development of headlight technology and the release of the 2024 version of the China New Car Assessment Program (C-NCAP), an adaptive high beam evaluation item has been added. The safety performance requirements for cars driving at night are getting higher and higher, so it is very necessary to make the high beam both wide and bright. At present, there is a lack of such a high beam design with a wide and bright light pattern.

[0003] Prior art, such as the invention patent with announcement number CN 217635380 U, discloses a vehicle lighting device capable of emitting high-energy light, including a light source, a reflective bowl, an inner lens, and an outer lens. However, the addition of an inner lens will increase light loss, resulting in a weakening of the energy of the emitted light, and the existing solution can only meet one of the requirements of a high beam being farther or a high beam being wider, which is difficult to achieve. If you want to widen the beam, you need to increase the length and partition of the outer lens, which is not aesthetically pleasing. Summary of the invention

[0004] In view of this, in order to solve the above problems, the present invention proposes an optical system for efficiently improving the width of high beam lighting, including a reflective bowl, a light source, and an outer lens 3. By adjusting the light sources and the reflective bowl at both ends, the light from two light sources in each group of second optical units 5 acts on the corresponding outer lens 3 together, and the light from one light source in each group of first optical units 4 acts on the corresponding outer lens 3. The light source emits light, which is reflected by the reflective bowl and then refracted through the outer lens 3 area, thereby forming a light pattern that meets the high beam center brightness and high beam width, which not only ensures the beauty of the outer lens 3 and rationally utilizes the space, but also ensures that the high beam light pattern is wide and bright, thereby improving the safety of driving at night.

[0005] An optical system for efficiently improving the width of high-beam illumination comprises a plurality of groups of arranged first optical units 4 and outer lenses 3, wherein the outer lenses 3 are arranged on light diverging surfaces of the plurality of groups of first optical units 4, each group of first optical units 4 consists of a reflective bowl and a light source, and the outer lenses 3 are divided into corresponding equally divided areas according to the number of groups of first optical units 4, and each first optical unit 4 corresponds to an equally divided area of ​​the outer lens 3, and is characterized in that a group of second optical units 5 are arranged on the outer sides of the two outermost first optical units 4, each group of the second optical units 5 consists of a reflective bowl and a light source, the distance between the second optical unit 5 and the outer lens 3 is smaller than the distance between the first optical unit 4 and the outer lens 3, and the angle of the second optical unit 5 can be adjusted so that the light sources at both ends are symmetrically arranged and offset toward the outer lens 3.

[0006] Furthermore, the second optical unit 5 includes a light source 21 on one side and a light source 26 on the other side, so that the light from the two light sources in each group of the second optical units 5 acts on the corresponding outer lens 3 together, and the light from the one light source in each group of the first optical unit 4 acts on the corresponding outer lens 3. The reflective bowl is correspondingly buckled on the light source, and the light source emits light, which is reflected by the reflective bowl and then refracted through the outer lens 3 area, thereby forming a light pattern that meets the high beam center brightness and high beam width, which not only ensures the beauty of the outer lens 3 and reasonably utilizes the space, but also ensures that the high beam light pattern is both wide and bright, thereby improving the safety of night driving.

[0007] Furthermore, the outer lens 3 is equally divided into a first area 31, a second area 32, a third area 33, and a fourth area 34 along the X-axis direction, the reflective bowls of the first optical unit 4 are arranged in sequence from the second reflective bowl 12 to the fifth reflective bowl 15 along the X-axis direction, and the light sources of the first optical unit 4 are arranged in sequence from the second light source 22 to the fifth light source 25 along the X-axis direction, wherein the second reflective bowl 12 to the fifth reflective bowl 15 respectively correspond to the first area 31 to the fourth area 34 into which the outer lens 3 is equally divided, and the light sources 22 to the fifth light source 25 emit light, which is reflected by the second reflective bowl 12 to the fifth reflective bowl 15 respectively, and then refracted by the outer lens 3 in the first area 31 to the fourth area 34 respectively, and the energy of the high beam center is high, forming a light type that meets the brightness of the high beam center.

[0008] Furthermore, the light source 1 21 and the light source 6 26 are offset toward the direction of the outer lens 3, and the first reflective bowl 11 and the sixth reflective bowl 16 are offset toward the direction of the outer lens 3 synchronously with the corresponding light sources. The first reflective bowl 11 and the sixth reflective bowl 16 respectively correspond to the first area 31 and the fourth area 34 of the outer lens 3 that are equally divided. The light source 1 21 and the light source 6 26 emit light, which is reflected by the first reflective bowl 11 and the sixth reflective bowl 16 respectively, and then refracted through the first area 31 and the fourth area 34 respectively, which is used to widen the high beam on the left and right sides, forming a light pattern that satisfies the high beam widening.

[0009] Furthermore, the distance from the outer lens 3 to the first optical unit 4 is 78-98 mm. According to simulation experiments, the forward and backward movement of the outer lens 3 has little effect on the brightness of the light pattern emitted by the first optical unit 4, but has a greater impact on the bowls on both sides of the widening.

[0010] Furthermore, the offset distance between the light source 1 21 and the light source 6 26 is 8-18 mm, ensuring that the light from the light source 22 and the light source 5 25 will not be blocked by the first reflective bowl 11 and the sixth reflective bowl 16, while ensuring that the optical efficiency of the light source 1 21 and the light source 6 26 through the outer lens 3 is maximized.

[0011] Furthermore, the first reflector 11 and the sixth reflector 16 are smaller than the second reflector 12 to the fifth reflector 15, and have a compact structure, which maximizes the use of the space size. The first reflector 11 and the sixth reflector 16 are rotated and offset inwardly, and the rotation angle is 7-9 degrees, which is conducive to collecting light to the first area 31 and the fourth area 34 of the outer lens 3. The cross-section of the first reflector 11 and the sixth reflector 16 on the side close to the outer lens 3 is arc-shaped, which ensures the uniformity and aesthetics of the light pattern.

[0012] Furthermore, one group of the second optical units 5 shares the first area 31 of the outer lens 3 with its adjacent first optical unit 4, and the first area 31 corresponds to the first reflective bowl 11, the light source 1 21, the second reflective bowl 12, and the light source 2 22. The light source 1 21 in the first reflective bowl 11 and the light source 2 22 in the second reflective bowl 12 make the left high beam widened both wide and bright.

[0013] Furthermore, another group of the second optical units 5 and its adjacent first optical unit 4 share the fourth area 34 of the outer lens 3, and the fourth area 34 corresponds to the fifth reflective bowl 15, the fifth light source 25, the sixth reflective bowl 16, and the sixth light source 26. The fifth light source 25 in the fifth reflective bowl 15 and the sixth light source 26 in the sixth reflective bowl 16 make the right high beam widened both wide and bright.

[0014] Furthermore, the two groups of the first optical units 4 which are not adjacent to the second optical unit 5 include a third reflective bowl 13, a third light source 23, a fourth reflective bowl 14, and a fourth light source 24. The third light source 23 in the third reflective bowl 13 and the fourth light source 24 in the fourth reflective bowl 14 act on the second area 32 and the third area 33 of the outer lens 3, respectively, to ensure the brightness of the center high beam, thereby improving the safety of night driving.

[0015] Furthermore, the light pattern formed by superimposing the light patterns emitted by the first optical unit 4 is a left-right symmetrical middle bright spot light pattern, and the light pattern formed by superimposing the light patterns emitted by the second optical unit 5 is an asymmetrically widened light pattern.

[0016] Furthermore, the light pattern formed by the superposition of the first optical unit 4 and the second optical unit 5 is a broadened light pattern with symmetrical energy distribution on the left and right sides of the middle bright spot.

[0017] Beneficial effects of the invention: The invention proposes an optical system for efficiently improving the width of high beam illumination, comprising a reflective bowl, a light source, and an outer lens 3. By adjusting the light sources and the reflective bowl at both ends, light from two light sources in each group of second optical units 5 acts on the corresponding outer lens 3 together, and light from one light source in each group of first optical units 4 acts on the corresponding outer lens 3. The light source emits light, which is reflected by the reflective bowl and then refracted through the outer lens 3 area, thereby forming a light pattern that satisfies the central brightness of the high beam and the widening of the high beam, which not only ensures the beauty of the outer lens 3 and reasonably utilizes the space, but also ensures that the high beam light pattern is both wide and bright, thereby improving the safety of driving at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the optical system for efficiently improving the high beam illumination width of the present invention.

[0019] Figure 2 This is a light refraction diagram that satisfies the central brightness of the high beam of the optical system for efficiently improving the high beam illumination width of the present invention.

[0020] Figure 3 It is a light pattern diagram formed by superimposing the light patterns emitted by the first optical unit of the optical system for efficiently improving the high beam illumination width of the present invention.

[0021] Figure 4 A light refraction diagram that satisfies high beam widening of the optical system for efficiently improving the high beam illumination width of the present invention.

[0022] Figure 5 It is a light pattern diagram formed by superimposing the light patterns emitted by the second optical unit of the optical system for efficiently improving the high beam illumination width of the present invention.

[0023] Figure 6 It is a combined light pattern formed by superimposing the light patterns emitted by the first optical unit and the second optical unit of the optical system for efficiently improving the high beam illumination width of the present invention.

[0024] Figure 7 The light refraction diagram of the first optical unit and the second optical unit near two sides of the optical system for efficiently improving the high beam illumination width of the present invention.

[0025] Figure 8-10 They are the iso-illuminance curves corresponding to the second optical unit when the offset distances are 8 mm, 13 mm, and 18 mm, respectively, with other conditions unchanged.

[0026] Figure 11-13 They are respectively the corresponding equal illumination curves when the outer lens is displaced forward and backward from the first optical unit when other conditions remain unchanged.

[0027] Main component symbols

[0028] A first reflective bowl 11, a second reflective bowl 12, a third reflective bowl 13, a fourth reflective bowl 14, a fifth reflective bowl 15, a sixth reflective bowl 16, a first light source 21, a second light source 22, a third light source 23, a fourth light source 24, a fifth light source 25, a sixth light source 26, an outer lens 3, a first region 31, a second region 32, a third region 33, a fourth region 34, a first optical unit 4, and a second optical unit 5.

[0029] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION Embodiment 1:

[0030] like Figure 1 As shown, it is a top view of the optical system for efficiently improving the width of high beam illumination of the present invention, an optical system for efficiently improving the width of high beam illumination, comprising a plurality of groups of arranged first optical units 4 and outer lenses 3, the outer lenses 3 being arranged on the light diverging surfaces of the plurality of groups of first optical units 4, each group of first optical units 4 consisting of a reflective bowl and a light source, the outer lenses 3 being divided into corresponding equally divided areas according to the number of groups of first optical units 4, each first optical unit 4 corresponding to an equally divided area of ​​the outer lens 3, characterized in that: a group of second optical units 5 are arranged on the outer sides of the two outermost first optical units 4, each group of the second optical units 5 consists of a reflective bowl and a light source, the distance between the second optical unit 5 and the outer lens 3 is smaller than the distance between the first optical unit 4 and the outer lens 3, and the angle of the second optical unit 5 can be adjusted so that the light sources at both ends are symmetrically arranged and offset toward the outer lens 3.

[0031] The outer lens 3 is equally divided into a first area 31, a second area 32, a third area 33, and a fourth area 34 along the X-axis direction. The reflective bowls of the first optical unit 4 are arranged along the X-axis direction as the second reflective bowl 12 to the fifth reflective bowl 15. The light sources of the first optical unit 4 are arranged along the X-axis direction as the second light source 22 to the fifth light source 25.

[0032] like Figure 2 As shown, the second to fifth reflective bowls 12 to 15 correspond to the first area 31 to the fourth area 34 of the outer lens 3 divided equally, respectively. The light sources 22 to 25 emit light, which is reflected by the second to fifth reflective bowls 12 to 15, respectively, and then refracted by the outer lens 3 in the first area 31 to the fourth area 34, respectively. The energy of the high beam center is high, forming a light pattern that satisfies the brightness of the high beam center.

[0033] The two groups of the first optical units 4 which are not adjacent to the second optical unit 5 include a third reflective bowl 13, a third light source 23, a fourth reflective bowl 14, and a fourth light source 24. The third light source 23 in the third reflective bowl 13 and the fourth light source 24 in the fourth reflective bowl 14 act on the second area 32 and the third area 33 of the outer lens 3 respectively, to ensure the brightness of the center high beam, thereby improving the safety of night driving.

[0034] like Figure 3 As shown, it is a light pattern diagram formed by superimposing the light patterns emitted by the first optical unit of the optical system for efficiently improving the high beam illumination width of the present invention. The light pattern formed by superimposing the light patterns emitted by the first optical unit 4 is a left-right symmetrical middle bright spot light pattern.

[0035] like Figure 4 As shown, it is a light refraction diagram satisfying high beam widening of the optical system for efficiently improving the high beam illumination width of the present invention. The light source 1 21 and the light source 6 26 are offset toward the direction of the outer lens 3, and the first reflective bowl 11 and the sixth reflective bowl 16 are synchronously offset toward the direction of the outer lens 3 with the corresponding light sources. The first reflective bowl 11 and the sixth reflective bowl 16 respectively correspond to the first area 31 and the fourth area 34 of the outer lens 3 that are equally divided. The light source 1 21 and the light source 6 26 emit light, which is reflected by the first reflective bowl 11 and the sixth reflective bowl 16 respectively, and then refracted through the first area 31 and the fourth area 34 respectively, for widening the high beam on both sides, thereby forming a light pattern satisfying high beam widening.

[0036] The offset distance is 8-18 mm, ensuring that the light from the second light source 22 and the fifth light source 25 will not be shielded by the first reflective bowl 11 and the sixth reflective bowl 16 , while ensuring that the optical efficiency of the first light source 21 and the sixth light source 26 through the outer lens 3 is maximized.

[0037] like Figure 8-10 As shown in the figure, the corresponding iso-illuminance curves of the second optical unit when the offset distance is 8mm, 13mm, and 18mm under other conditions unchanged, the larger the value of the luminous flux, the better, and the larger the value of the brightest point, the better, as shown in the figure. Figure 8 As shown, when the offset distance is 8mm, the luminous flux is 319lm, and the brightest point is 26.1lx. Fig. 9 As shown, when the offset distance is 13mm, the luminous flux is 344lm, and the brightest point is 32.8lx. Fig.10 As shown, when the offset distance is 18mm, the luminous flux is 288lm and the brightest point is 30.4lx. Therefore, it can be seen that when the offset distance is 13mm, the luminous flux is at the best position and the brightness is the highest.

[0038] The first reflector 11 and the sixth reflector 16 are smaller than the second reflector 12 to the fifth reflector 15, and have a compact structure, which maximizes the use of the space size. The first reflector 11 and the sixth reflector 16 are rotated and offset inwardly, and the rotation angle is 7-9 degrees, which is conducive to collecting light to the first area 31 and the fourth area 34 of the outer lens 3. The cross-section of the first reflector 11 and the sixth reflector 16 on the side close to the outer lens 3 is arc-shaped, which ensures the uniformity and aesthetics of the light pattern.

[0039] The distance between the outer lens 3 and the first optical unit 4 is 80-100 mm.

[0040] like Figure 11-13 As shown in FIG. 1 , it is a corresponding equal illumination curve diagram when the outer lens is displaced forward and backward from the first optical unit 4 under other conditions unchanged. The larger the value of the luminous flux, the better. The larger the value of the brightest point, the better. Fig.11 As shown in FIG. 1 , when the outer lens is 5 mm closer to the first optical unit 4, the luminous flux is 555 lm, and the brightest point is 124 lx. Fig.12 As shown in the figure, when the outer lens displacement is 0, the luminous flux is 606lm and the brightest point is 123lx. Fig.13 As shown, when the outer lens is 5 mm away from the first optical unit 4 , the luminous flux is 658 lm and the brightest point is 122 lx. Therefore, it can be seen that the forward and backward movement of the outer lens 3 has little effect on the brightness of the light pattern emitted by the first optical unit 4 .

[0041] like Figure 5 As shown, it is a light pattern diagram formed by superimposing the light patterns emitted by the second optical units of the optical system for efficiently improving the high beam illumination width of the present invention. The light pattern formed by superimposing the light patterns emitted by the second optical units 5 is an asymmetrically widened light pattern.

[0042] like Figure 7 As shown, it is a light refraction diagram of the first optical unit and the second optical unit near both sides of the optical system for efficiently improving the high beam illumination width of the present invention, wherein a group of the second optical units 5 and its adjacent first optical units 4 share the first area 31 of the outer lens 3, the first area 31 corresponds to the first reflective bowl 11, the light source 1 21, the second reflective bowl 12, and the light source 2 22, the light source 1 21 in the first reflective bowl 11 and the light source 2 22 in the second reflective bowl 12, so that the left high beam is widened and bright.

[0043] Another group of the second optical units 5 and its adjacent first optical unit 4 share the fourth area 34 of the outer lens 3, and the fourth area 34 corresponds to the fifth reflective bowl 15, the fifth light source 25, the sixth reflective bowl 16, and the sixth light source 26. The fifth light source 25 in the fifth reflective bowl 15 and the sixth light source 26 in the sixth reflective bowl 16 make the right high beam widened both wide and bright.

[0044] like Figure 6 As shown, it is a combined light pattern formed by superimposing the light patterns emitted by the first optical unit and the second optical unit of the optical system for efficiently improving the high beam illumination width of the present invention. The light pattern formed by superimposing the first optical unit 4 and the second optical unit 5 is a broadened light pattern with symmetrical energy distribution on the left and right sides of the middle bright spot.

[0045] Beneficial effects of the invention: The invention proposes an optical system for efficiently improving the width of high beam illumination, comprising a reflective bowl, a light source, and an outer lens 3. By adjusting the light sources and the reflective bowl at both ends, light from two light sources in each group of second optical units 5 acts on the corresponding outer lens 3 together, and light from one light source in each group of first optical units 4 acts on the corresponding outer lens 3. The light source emits light, which is reflected by the reflective bowl and then refracted through the outer lens 3 area, thereby forming a light pattern that satisfies the central brightness of the high beam and the widening of the high beam, which not only ensures the beauty of the outer lens 3 and reasonably utilizes the space, but also ensures that the high beam light pattern is both wide and bright, thereby improving the safety of driving at night.

[0046] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An optical system for efficiently improving the width of high-beam illumination, comprising a plurality of groups of first optical units (4) and outer lenses (3) arranged in an arranged manner, wherein the outer lenses (3) are arranged on the light diverging surfaces of the plurality of groups of first optical units (4), each group of first optical units (4) is composed of a reflective bowl and a light source, and the outer lenses (3) are divided into corresponding equally divided areas according to the number of groups of first optical units (4), and each first optical unit (4) corresponds to an equally divided area of ​​the outer lenses (3), characterized in that: A group of second optical units (5) is arranged outside the two first optical units (4) at the outermost ends, each group of the second optical units (5) is composed of a reflective bowl and a light source, the distance between the second optical unit (5) and the outer lens (3) is smaller than the distance between the first optical unit (4) and the outer lens (3), and the angle of the second optical unit (5) can be adjusted so that the light sources at both ends are symmetrically arranged and offset toward the outer lens (3).

2. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: The second optical unit (5) comprises a light source 1 (21) on one side and a light source 6 (26) on the other side, so that the light from the two light sources in each group of the second optical units (5) acts on the corresponding outer lens (3) together, and the light from the one light source in each group of the first optical units (4) acts on the corresponding outer lens (3). The reflective bowl is correspondingly buckled on the light source, and the light source emits light, which is reflected by the reflective bowl and then refracted through the outer lens (3) area, thereby forming a light pattern that satisfies the high beam center brightness and high beam width, thereby ensuring the beauty of the outer lens (3), reasonably utilizing the space, and ensuring that the high beam light pattern is both wide and bright, thereby improving the safety of nighttime driving.

3. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: The outer lens (3) is divided into a first area (31), a second area (32), a third area (33), and a fourth area (34) in sequence along the X-axis direction; the reflective bowls of the first optical unit (4) are arranged in sequence along the X-axis direction as a second reflective bowl (12) to a fifth reflective bowl (15); the light sources of the first optical unit (4) are arranged in sequence along the X-axis direction as a second light source (22) to a fifth light source (25); the second reflective bowl (12) to the fifth reflective bowl (15) respectively correspond to the first area (31) to the fourth area (34) of the outer lens (3); the light sources (22) to the fifth light source (25) emit light, which is reflected by the second reflective bowl (12) to the fifth reflective bowl (15) respectively, and then refracted by the outer lens (3) in the first area (31) to the fourth area (34) respectively, so that the energy of the high beam center is high, thereby forming a light pattern that satisfies the brightness of the high beam center.

4. The optical system for efficiently improving high beam illumination width as claimed in claim 2, characterized in that: The first light source (21) and the sixth light source (26) are offset in the direction of the outer lens (3); the first reflective bowl (11) and the sixth reflective bowl (16) are offset in the direction of the outer lens (3) synchronously with the corresponding light sources; the first reflective bowl (11) and the sixth reflective bowl (16) respectively correspond to a first area (31) and a fourth area (34) of the outer lens (3) which are equally divided; the light emitted by the first light source (21) and the sixth light source (26) are respectively reflected by the first reflective bowl (11) and the sixth reflective bowl (16), and then refracted by the first area (31) and the fourth area (34) to be widened on the left and right sides of the high beam, thereby forming a light pattern that satisfies the high beam widening.

5. The optical system for efficiently improving high beam illumination width as claimed in claim 4, characterized in that: The first reflective bowl (11) and the sixth reflective bowl (16) are smaller than the second reflective bowl (12) to the fifth reflective bowl (15); the first reflective bowl (11) and the sixth reflective bowl (16) are rotated and offset inwards, which is conducive to collecting light to the first area (31) and the fourth area (34) of the outer lens (3); and the cross-section of the first reflective bowl (11) and the sixth reflective bowl (16) on a side close to the outer lens (3) is arc-shaped.

6. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: One group of the second optical units (5) and its adjacent first optical unit (4) share a first area (31) of the outer lens (3); the first area (31) corresponds to a first reflective bowl (11), a first light source (21), a second reflective bowl (12), and a second light source (22); the first light source (21) in the first reflective bowl (11) and the second light source (22) in the second reflective bowl (12), so that the left high beam is widened and bright.

7. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: Another group of the second optical units (5) and the adjacent first optical units (4) share a fourth area (34) of the outer lens (3); the fourth area (34) corresponds to the fifth reflective bowl (15), the fifth light source (25), the sixth reflective bowl (16), and the sixth light source (26); the fifth light source (25) in the fifth reflective bowl (15) and the sixth light source (26) in the sixth reflective bowl (16), so that the right high beam is both wide and bright.

8. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: The two groups of the first optical units (4) not adjacent to the second optical unit (5) include a third reflective bowl (13), a third light source (23), a fourth reflective bowl (14), and a fourth light source (24). The third light source (23) in the third reflective bowl (13) and the fourth light source (24) in the fourth reflective bowl (14) act on the second area (32) and the third area (33) of the outer lens (3) respectively, thereby ensuring the brightness of the central high beam, thereby improving the safety of nighttime driving.

9. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: The light pattern formed by superimposing the light patterns emitted by the first optical unit (4) is a left-right symmetrical middle bright spot light pattern, and the light pattern formed by superimposing the light patterns emitted by the second optical unit (5) is an asymmetrically widened light pattern.

10. The optical system for efficiently improving high beam illumination width as claimed in claim 1, characterized in that: The light pattern formed by the superposition of the first optical unit (4) and the second optical unit (5) is a broadened light pattern with symmetrical energy distribution on the left and right sides of the central bright spot.

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