Optical device for efficiently increasing high beam illumination width

Abstract

The optical device comprises a reflective bowl, light sources and outer lenses, and light rays of two light sources in each second optical unit jointly act on the corresponding outer lenses by adjusting the light sources and the reflective bowl arranged at the two ends. 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 utility model relates to the field of vehicle lamp modules, and more specifically, to an optical device for efficiently improving the width of high-beam illumination. Background Art

[0002] With the development of automotive lighting technology and the release of the 2024 version of the China New Car Assessment Program (C-NCAP), an adaptive high beam evaluation project has been added. The safety performance requirements for cars when driving at night are becoming increasingly 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 solution with both wide and bright light patterns.

[0003] Existing technologies, such as the utility model patent with publication number CN 217635380 U, disclose a vehicle lighting device capable of emitting high-energy light patterns, including a light source, a reflective bowl, an inner lens, and an outer lens. However, the addition of the inner lens increases light loss, resulting in a weakening of the energy of the emitted light pattern. Furthermore, the existing solution can only satisfy either the requirement of a high beam reaching far or a high beam reaching wide, making it difficult to achieve both. To achieve a wider beam, the outer lens needs to be lengthened and partitioned, which is unsightly. Utility Model Content

[0004] In view of this, in order to solve the above problems, the present invention proposes an optical device 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 reflective bowls 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 widening, 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 device 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 the 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 is arranged on the outer side 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 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 second optical units 5 acts on the corresponding outer lens 3 together, and the light from the one light source in each group of 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 meets the high beam center brightness and high beam widening requirements, 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 both wide and bright, thereby improving the safety of night driving.

[0007] Furthermore, the outer lens 3 is divided into a first area 31, a second area 32, a third area 33, and a fourth area 34 along the X-axis. 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. 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, wherein the second reflective bowl 12 to the fifth reflective bowl 15 correspond to the first area 31 to the fourth area 34 into which the outer lens 3 is divided, respectively. 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 out of the outer lens 3 through the first area 31 to the fourth area 34, respectively. The energy of the high beam center is high, forming a light pattern that meets the brightness of the high beam center.

[0008] Furthermore, one side of the outer lens 3 is provided with four equally spaced convex structures, and the other side is a flat structure.

[0009] Furthermore, the raised structures are arranged along the X-axis direction to divide the outer lens 3 into a first area 31, a second area 32, a third area 33, and a fourth area 34. 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, wherein the second reflective bowl 12 to the fifth reflective bowl 15 correspond to the first area 31 to the fourth area 34 into which the outer lens 3 is divided, respectively. 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 out of the outer lens 3 through the first area 31 to the fourth area 34, respectively. The energy of the high beam center is high, forming a light pattern that meets the brightness of the high beam center.

[0010] Furthermore, the first light source 21 and the sixth light source 26 are offset toward the outer lens 3, and the first reflective bowl 11 and the sixth reflective bowl 16 are offset toward 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 that are equally divided into the outer lens 3. The light emitted by the first light source 21 and the sixth light source 26 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 meets the high beam widening requirement.

[0011] Furthermore, it is ensured that the light from the second light source 22 and the fifth light source 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 first light source 21 and the sixth light source 26 through the outer lens 3 is maximized.

[0012] Furthermore, the first reflector 11 and the sixth reflector 16 are smaller than the second reflector 12 to the fifth reflector 15, resulting in a compact structure and maximizing the use of space. The first reflector 11 and the sixth reflector 16 are rotated and offset inward, which is beneficial for 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 curved, ensuring the uniformity and aesthetics of the light pattern.

[0013] 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. The first area 31 corresponds to the first reflective bowl 11, the first light source 21, the second reflective bowl 12, and the second light source 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.

[0014] 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. The fourth area 34 corresponds to the fifth reflector 15, the fifth light source 25, the sixth reflector 16, and the sixth light source 26. The fifth light source 25 in the fifth reflector 15 and the sixth light source 26 in the sixth reflector 16 make the right high beam widened both wider and brighter.

[0015] Furthermore, the two groups of the first optical units 4 that 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.

[0016] Furthermore, the light pattern formed by superimposing the light patterns emitted by the first optical unit 4 is a bilaterally symmetrical light pattern with a bright spot in the middle, and the light pattern formed by superimposing the light patterns emitted by the second optical unit 5 is an asymmetrically widened light pattern.

[0017] 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 central bright spot.

[0018] Beneficial effects of the present invention: The present invention proposes an optical device 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 reflective bowls 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 widening, 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 both wide and bright, thereby improving the safety of driving at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a top view of the optical device for efficiently increasing the high beam illumination width according to the present invention.

[0020] Figure 2 This is a light refraction diagram that satisfies the high beam center brightness of the optical device for efficiently improving the high beam illumination width of the present invention.

[0021] Figure 3 This is a light pattern formed by superimposing the light patterns emitted by the first optical unit 4 of the optical device for efficiently improving the high beam illumination width of the present invention.

[0022] Figure 4 This is a light refraction diagram that satisfies the high beam widening requirement of the optical device for efficiently improving the high beam illumination width of the present invention.

[0023] Figure 5 This is a light pattern formed by superimposing the light patterns emitted by the second optical unit of the optical device for efficiently improving the high beam illumination width of the present invention.

[0024] Figure 6 It is a combined light pattern formed by superimposing the light patterns emitted by the first optical unit 4 and the second optical unit of the optical device for efficiently improving the high beam illumination width of the present invention.

[0025] Figure 7 This is a light refraction diagram of the first optical unit 4 and the second optical unit near both sides of the optical device for efficiently improving the high beam illumination width of the present invention.

[0026] Figure 8-10 , which is an iso-illuminance curve diagram of the first optical unit 4 and the second optical unit near both sides corresponding to different offset distances of the optical device for efficiently improving the high beam illumination width of the present invention.

[0027] Description of main component symbols

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

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

[0030] like Figure 1 The figure shows a top view of an optical device for efficiently improving the width of high beam illumination according to the present invention. An optical device 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 the 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 equal areas according to the number of groups of first optical units 4, and each first optical unit 4 corresponds to an equal area of the outer lens 3, and a group of second optical units 5 is arranged on the outer side of the two outermost first optical units 4, and each group of second optical units 5 consists of a reflective bowl and a light source, and 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 divided into a first area 31, a second area 32, a third area 33, and a fourth area 34 along the X-axis. 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. 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.

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

[0033] The two groups of the first optical units 4 that 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, this is a light pattern diagram formed by superimposing the light patterns emitted by the first optical unit 4 of the optical device 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, this is a light refraction diagram that satisfies high beam widening of the optical device 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 outer lens 3. The first reflective bowl 11 and the sixth reflective bowl 16 are synchronously offset toward the outer lens 3 with the corresponding light sources. The first reflective bowl 11 and the sixth reflective bowl 16 correspond to the first area 31 and the fourth area 34 that are equally divided into the outer lens 3, respectively. The light emitted by the light source 1 21 and the light source 6 26 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 the left and right sides, forming a light pattern that satisfies 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 blocked by the first reflector 11 and the sixth reflector 16 , while maximizing the optical efficiency of the first light source 21 and the sixth light source 26 through the outer lens 3 .

[0037] like Figure 8-10 As shown in the figure, the corresponding equal illumination curves are when the offset distance is 8mm, 13mm, and 18mm. When the offset distance is 8mm, the maximum luminous flux is 26.1lx, when the offset distance is 13mm, the maximum luminous flux is 32.8lx, and when the offset distance is 18mm, the maximum luminous flux is 30.4lx. It can be seen that the luminous flux at the optimal position is 13mm, 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, resulting in a compact structure and maximizing the use of space. The first reflector 11 and the sixth reflector 16 are rotated inwardly by an angle of 7 to 9 degrees, which facilitates the collection of light to the first area 31 and the fourth area 34 of the outer lens 3. The first reflector 11 and the sixth reflector 16 have an arc-shaped cross-section on the side closest to the outer lens 3, ensuring a uniform and aesthetically pleasing light pattern.

[0039] like Figure 5 As shown, this is a light pattern diagram formed by superimposing the light patterns emitted by the second optical unit of the optical device 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 unit 5 is an asymmetrically widened light pattern.

[0040] like Figure 7 As shown, it is a light refraction diagram of the first optical unit 4 and the second optical unit near both sides of the optical device 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, and the first area 31 corresponds to the first reflector 11, the light source 1 21, the second reflector 12, and the light source 2 22. The light source 1 21 in the first reflector 11 and the light source 2 22 in the second reflector 12 make the left high beam widened both wider and brighter.

[0041] 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. The fourth area 34 corresponds to the fifth reflector 15, the fifth light source 25, the sixth reflector 16, and the sixth light source 26. The fifth light source 25 in the fifth reflector 15 and the sixth light source 26 in the sixth reflector 16 make the right high beam widened both wider and brighter.

[0042] like Figure 6 As shown, this is a combined light pattern formed by superimposing the light patterns emitted by the first optical unit 4 and the second optical unit of the optical device for efficiently improving the width of high beam illumination of the present invention. The light pattern formed by superimposing the first optical unit 4 and the second optical unit 5 is a widened light pattern with symmetrical energy distribution on the left and right sides of the middle bright spot.

[0043] Beneficial effects of the present invention: The present invention proposes an optical device 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 reflective bowls 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 widening, 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 both wide and bright, thereby improving the safety of driving at night.

[0044] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An optical device for efficiently improving the width of high-beam illumination, comprising a plurality of arranged first optical units (4) and outer lenses (3), wherein the outer lenses (3) are arranged on the light diverging surfaces of the plurality of first optical units (4), each first optical unit (4) being composed of a reflective bowl and a light source, and the outer lenses (3) being divided into corresponding equally divided areas according to the number of first optical units (4), and each first optical unit (4) corresponding to an equally divided area of the outer lenses (3), characterized in that: A group of second optical units (5) is provided on the outer sides of 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 units (5) and the outer lens (3) is smaller than the distance between the first optical units (4) and the outer lens (3), and the angle of the second optical units (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 device for efficiently increasing the high beam illumination width according to 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 unit (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.

3. The optical device for efficiently increasing the high beam illumination width according to claim 1, wherein: One side of the outer lens (3) is provided with four equally spaced convex structures, and the other side is a flat structure. The convex structures are arranged along the X 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 the axial arrangement. The reflective bowls of the first optical unit (4) are arranged in sequence along the X-axis as the second reflective bowl (12) to the fifth reflective bowl (15). The light sources of the first optical unit (4) are arranged in sequence along the X-axis as the second light source (22) to the 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). Lights emitted by the second light source (22) to the fifth light source (25) are respectively reflected by the second reflective bowl (12) to the fifth reflective bowl (15) and then refracted out through the outer lens (3) in the first area (31) to the fourth area (34).

4. The optical device for efficiently increasing the width of high beam illumination according to claim 2, wherein: The first light source (21) and the sixth light source (26) are offset toward the outer lens (3), and the first reflective bowl (11) and the sixth reflective bowl (16) are offset toward 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 emitted by the first light source (21) and the sixth light source (26) 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, so as to be used for widening the left and right sides of the high beam.

5. The optical device for efficiently increasing the high beam illumination width according to 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 inward, 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 the side close to the outer lens (3) is arc-shaped.

6. The optical device for efficiently increasing the high beam illumination width according to claim 1, wherein: One group of the second optical units (5) and its adjacent first optical unit (4) share a first region (31) of the outer lens (3), wherein the first region (31) corresponds to a first reflective bowl (11), a first light source (21), a second reflective bowl (12), and a second light source (22).

7. The optical device for efficiently increasing the width of high beam illumination according to claim 1, wherein: Another group of the second optical units (5) and the 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).

8. The optical device for efficiently increasing the high beam illumination width according to claim 1, wherein: 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.

9. The optical device for efficiently increasing the high beam illumination width according to claim 1, wherein: The light pattern formed by superimposing the light patterns emitted by the first optical unit (4) is a bilaterally 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 device for efficiently increasing high beam illumination width according to claim 1, wherein: 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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