CN116972351A - Multi-lamp-bead double-light LED automobile headlamp - Google Patents

Multi-lamp-bead double-light LED automobile headlamp Download PDF

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Publication number
CN116972351A
CN116972351A CN202311148415.9A CN202311148415A CN116972351A CN 116972351 A CN116972351 A CN 116972351A CN 202311148415 A CN202311148415 A CN 202311148415A CN 116972351 A CN116972351 A CN 116972351A
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CN
China
Prior art keywords
light
cup
bead
reflecting cup
direct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311148415.9A
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Chinese (zh)
Inventor
张静坡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Yuezhao Automotive Lighting Co ltd
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Guangzhou Yuezhao Automotive Lighting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Yuezhao Automotive Lighting Co ltd filed Critical Guangzhou Yuezhao Automotive Lighting Co ltd
Priority to CN202311148415.9A priority Critical patent/CN116972351A/en
Publication of CN116972351A publication Critical patent/CN116972351A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The application discloses a multi-lamp-bead double-light LED automobile headlamp which comprises a lamp panel, a reflecting cup and a glass lens. The reflecting cup comprises a first reflecting cup, a second reflecting cup and a third reflecting cup, wherein the second reflecting cup and the third reflecting cup are arranged at the far end of the reflecting cup, the curvature radius of the reflecting surface of the second reflecting cup and the curvature radius of the reflecting surface of the third reflecting cup are the same and different from the curvature radius of the reflecting surface of the first reflecting cup, and the lamp panel is provided with a first lamp bead, a second lamp bead and a third lamp bead which respectively correspond to the first reflecting cup, the second lamp bead and the third lamp bead. The radius of curvature of the reflecting surfaces of the second reflecting cup and the third reflecting cup is smaller than that of the first reflecting cup. According to the application, by arranging the three-cup integrated reflecting cup structure with different reflecting curvature radiuses, different lamp beads are matched with different reflecting cups, so that the uniformity and brightness of far-beam and near-beam light patterns are improved, and a good light supplementing effect is achieved. The setting angle of the second reflecting cup and the third reflecting cup is limited, so that better light supplementing light type and brightness can be obtained, stray light is avoided, and the output luminous flux and light type uniformity are improved.

Description

Multi-lamp-bead double-light LED automobile headlamp
Technical Field
The application relates to the technical field of automobile headlamps, in particular to a multi-lamp-bead double-light LED automobile headlamp.
Background
The existing single-cup LED automobile headlamp generally comprises 1 lamp bead, 1 reflecting cup, 1 set of light cutting mechanism and glass lens, and the optical scheme is simple in structure, high in production efficiency and uniform in light type. However, the brightness is general, the lighting effect is general, and the main defects are that the far-beam light and the near-beam light have no light supplement, the brightness of a central point is low, the penetrating power is poor, the driving safety of a vehicle is low, and the like. At present, some optical schemes are provided with a low beam reflecting cup and a high beam reflecting cup which are arranged in a separated and opposite mode, but the structure is complex, the size is large, and the requirements of the automobile headlamp cannot be met.
Therefore, the structure, method and use of the conventional LED automotive headlamp are obviously inconvenient and defective, and further improvement is needed. How to create a new multi-lamp-bead double-light LED automobile headlamp so as to overcome the defects of the existing LED automobile headlamp.
Disclosure of Invention
The application aims to solve the technical problem of providing a multi-lamp-bead double-light LED automobile headlamp, which realizes a three-cup integrated structure by improving a reflecting cup structure, meets the requirement of light supplement for high beam and low beam, has a simple structure and small volume, and overcomes the defects of the traditional LED automobile headlamp.
In order to solve the technical problems, the application provides a multi-lamp-bead double-light LED automobile headlamp, which comprises a lamp panel, a light reflecting cup, a light cutting mechanism and a glass lens, wherein the light reflecting cup comprises a first light reflecting cup, a second light reflecting cup and a third light reflecting cup which are arranged at the far end of the first light reflecting cup, the curvature radiuses of the light reflecting surfaces of the second light reflecting cup and the third light reflecting cup are the same and are different from those of the light reflecting surfaces of the first light reflecting cup, the lamp panel is provided with a first lamp bead, a second lamp bead and a third lamp bead, light rays emitted by the first lamp bead are reflected by the first light reflecting cup and then are emitted in parallel from the lower part of the glass lens, and light rays emitted by the second lamp bead and the third lamp bead are emitted in parallel from the lower part of the glass lens after being reflected by the second light reflecting cup and the third light reflecting cup respectively, so as to realize light supplementing of the light rays emitted by the first lamp bead.
Further improved, the curvature radius of the reflecting surfaces of the second reflecting cup and the third reflecting cup is smaller than that of the reflecting surface of the first reflecting cup.
Further improved, the second reflecting cup and the third reflecting cup are symmetrically arranged along the central line of the first reflecting cup.
Further improving, connecting the focal point of the second reflecting cup and the focal point of the third reflecting cup with the focal point of the glass lens respectively, wherein an included angle between the two connecting lines is 10-40 degrees.
Further improving, connecting the focal point of the second reflecting cup and the focal point of the third reflecting cup with the focal point of the glass lens respectively, wherein an included angle between the two connecting lines is 20-30 degrees.
Further improved, the distance between the second lamp bead and the third lamp bead is equal to that between the focal points of the glass lenses, and the distances between the focal points of the second lamp bead and the third lamp bead are 36.4-40.4 mm.
Further improved, the first lamp bead, the second lamp bead and the third lamp bead are all arranged on the same side of the same lamp panel, and the first reflecting cup, the second reflecting cup and the third reflecting cup are of an integrated cup body structure.
Further improvements include at least one direct light supplementing mechanism.
Further improved, the direct light supplementing mechanism adopts a direct LED light supplementing mechanism, and the direct LED light supplementing mechanism comprises a direct LED lamp bead, a direct light receiving lens and a direct glass lens which are sequentially arranged, wherein the direct glass lens is arranged in the upper area of the glass lens.
Further improved, the direct laser light supplementing mechanism adopts a direct laser light supplementing mechanism, and comprises a direct laser light source and a far-reaching direct laser lens corresponding to the direct laser light source, wherein the far-reaching direct laser lens is arranged in the upper area of the glass lens.
With such a design, the application has at least the following advantages:
1. according to the multi-lamp-bead double-light LED automobile headlamp, the light reflecting cup is improved, so that the multi-lamp-bead double-light LED automobile headlamp forms a three-cup integrated structure with different light reflecting surface curvature radiuses, and the uniformity and brightness of far-beam and near-beam light patterns are improved by matching different lamp beads with the light reflecting cups with different light reflecting surface curvature radiuses, so that a good light supplementing effect is achieved.
2. The setting angle of the second reflecting cup and the third reflecting cup is limited, so that better light supplementing light type and brightness can be obtained, stray light is avoided, and output luminous flux and light type uniformity are improved.
3. The automobile headlamp can further realize the light supplementing of high-beam and low-beam light on the basis of the lifted high-beam and low-beam light by the arrangement of the direct light supplementing mechanism, and the high-beam brightness and the high-beam penetrating power are greatly improved.
Drawings
The foregoing is merely an overview of the present application, and the present application is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic view of an embodiment of a multi-bead dual-light LED automotive headlamp according to the present application, shown in FIG. 1.
Fig. 2 is a schematic diagram of an embodiment of a multi-bead dual-light LED automotive headlamp according to the present application in fig. 2.
FIG. 3 is a side view of one embodiment of a multi-bead dual-light LED automotive headlamp of the present application.
FIG. 4 is a top view of an embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 5 is a bottom view of one embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 6 is a schematic view of a lamp panel in a first embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
FIG. 7 is a schematic view of the outside structure of a reflector cup in a first embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 8 is a schematic view of the inner side structure of a reflector cup in a first embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 9 is a schematic view showing the position and structure of the second and third reflector cups in the first embodiment of the multi-bead dual-light LED automotive headlamp of the present application.
FIG. 10 is a schematic view of a low beam path of an embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
FIG. 11 is a schematic diagram of a high beam path of an embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 12 is a light-compensating pattern diagram of the first embodiment of the multi-bead dual-light LED automotive headlamp of the present application with the second and third reflector cups having an included angle of 10 °.
Fig. 13 is a diagram of an overall high beam pattern with a 10 ° angle between the second and third reflector cups in a first embodiment of a multi-bead dual-light LED automotive headlamp in accordance with the present application.
Fig. 14 is a light-compensating pattern of the first embodiment of the multi-bead dual-light LED automotive headlamp of the present application with the second and third reflector cups having an included angle of 20 °.
Fig. 15 is a diagram of an overall high beam pattern with an included angle of 20 ° between the second and third reflector cups in a first embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 16 is a light-compensating pattern of a multi-bead dual-light LED automotive headlamp according to the first embodiment of the present application, in which the second and third reflector cups have an included angle of 30 °.
Fig. 17 is a diagram of an overall high beam pattern with a 30 ° angle between the second and third reflector cups in a first embodiment of a multi-bead dual-light LED automotive headlamp in accordance with the present application.
Fig. 18 is a light-compensating pattern of the first embodiment of the multi-bead dual-light LED automotive headlamp of the present application with the second and third reflector cups having an included angle of 40 °.
Fig. 19 is a diagram of an overall high beam pattern with an included angle of 40 ° between the second and third reflector cups in a first embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 20 is a schematic overall structure of a second embodiment of the multi-bead dual-light LED automotive headlamp of the present application.
Fig. 21 is a schematic view showing an internal structure of a second embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 22 is a side view of a second embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 23 is a high beam light supplement ray path diagram of a second embodiment of a multi-bead dual-light LED automotive headlamp of the present application.
Fig. 24 is a schematic overall structure of a third embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 25 is a schematic view showing an internal structure of a third embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 26 is a side view of a three embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
FIG. 27 is a direct laser supplemental light ray path diagram of a third embodiment of a multi-bead dual-light LED automotive headlamp of the present application.
Fig. 28 is a schematic overall structure of a fourth embodiment of a multi-bead dual-light LED automotive headlamp according to the present application.
Fig. 29 is a schematic view of the internal structure of a fourth embodiment of a multi-bead dual-light LED automotive headlamp of the present application, fig. 1.
Fig. 30 is a schematic view of the internal structure of a fourth embodiment of a multi-bead dual-light LED automotive headlamp of the present application, fig. 2.
FIG. 31 is a direct supplemental light ray path diagram of a fourth embodiment of a multi-bead dual-light LED automotive headlamp of the present application.
Detailed Description
Example 1
The multi-bead double-light LED automobile headlamp comprises a glass lens 10, a reflecting cup 20, a lamp panel 30 and a light cutting mechanism 40. The lamp panel 30 is provided with lamp beads, and light rays emitted by the lamp beads are reflected by the reflecting cup 20 and then emitted from the glass lens 10 to form far-beam and near-beam light patterns of the automobile headlamp. Wherein, the high beam and the low beam are realized by a light cutting mechanism 40. The lamp panel 30 is a copper substrate, and the glass lens 10 is a conventional round lens.
Referring to fig. 1 to 5, the reflector cup 20 in this embodiment adopts a three-cup integrated structure, and includes a first reflector cup 21, and a second reflector cup 22 and a third reflector cup 23 disposed at the distal end of the first reflector cup 21. The radii of curvature of the reflective surfaces of the second reflective cup 22 and the third reflective cup 23 are the same, but they are different from the radii of curvature of the reflective surfaces of the first reflective cup 21, for example, the radii of curvature of the reflective surfaces of the second reflective cup 22 and the third reflective cup 23 are smaller than the radii of curvature of the reflective surfaces of the first reflective cup 21. The distal end of the first reflecting cup 21 of the present application is the end farther from the glass lens 10.
The lamp panel 30 is provided with a first lamp bead 31, a second lamp bead 32 and a third lamp bead 33 on the same side as the upper portion, as shown in fig. 6. The light emitted from the first lamp beads 31 is reflected by the first reflecting cup 21 and then is emitted from the lower portion of the glass lens 10 in parallel. The second and third beads 32 and 33 are high power density round beads having a luminous diameter of 50 mil. The light rays of the second and third beads 32 and 33 are respectively reflected by the second and third reflecting cups 22 and 23, and then are emitted in parallel from the lower portion of the glass lens 10, so as to supplement the light rays emitted by the first beads 31. Since the radius of curvature of the reflecting surface of the second reflecting cup 22 and the third reflecting cup 23 is smaller than that of the reflecting surface of the first reflecting cup 21, the light rays emitted from the glass lens 10 by the second lamp beads 22 and the third lamp beads 23 are closer to the middle area of the glass lens 10, so that a better light supplementing effect is formed. Fig. 10 shows a schematic diagram of a low beam path of the multi-bead dual-light LED automotive headlamp according to the present embodiment. Fig. 11 shows a schematic diagram of a high beam path of the multi-bulb dual-light LED automotive headlamp according to the present embodiment.
The second reflector cup 22 and the third reflector cup 23 are symmetrically disposed along the midline of the first reflector cup 21, as shown in fig. 7 and 8.
More specifically, as shown in fig. 9, the focal point of the second reflecting cup 22 and the focal point of the third reflecting cup 23 are respectively connected with the focal point of the glass lens 10, and an included angle between the two connection lines is 10-40 °. Preferably 20 to 30 deg., more preferably 20 deg.. The distance between the second lamp bead 32 and the third lamp bead 33 and the focal point of the glass lens 10 is equal, and is 36.4-40.4 mm, preferably 38.4mm.
Position setting parameter test of the second reflecting cup 22 and the third reflecting cup 23
(1) And when the focal points of the second reflecting cup 22 and the third reflecting cup 23 are respectively connected with the focal point of the glass lens 10 and the included angle between the two connecting lines is 10 degrees, observing a light supplementing type isocandela graph realized by the second reflecting cup 22 and the third reflecting cup 23 and an obtained integral high beam graph. The luminous fluxes of the second and third beads 32 and 33 are 600Lum. The luminous flux of the first lamp beads 31 was 3480Lum.
Fig. 12 shows a light-supplementing type isotopy line diagram of the multi-bead double-light LED automotive headlamp according to the present embodiment when the included angle is 10 °. Fig. 13 shows an overall high beam pattern of the multi-bead dual-beam LED automotive headlamp of the present embodiment at an included angle of 10 °.
As can be seen from fig. 12, the light pattern has more stray light, the output luminous flux is 440Lum, the central maximum brightness is 25800cd, the output luminous flux is low, the horizontal width is poor, the light pattern has more stray light within the range of horizontal-15 degrees and vertical 5-10 degrees, and the light pattern is not ideal. As can be seen from fig. 13, the light type has more stray light on the upper surface, the output luminous flux is 1890Lum, the central maximum brightness is 42200cd, the whole output luminous flux is general, the light type uniformity is better, but the light type has more stray light in the range of-15 to 15 degrees in horizontal and 5 to 10 degrees in vertical.
(2) And when the focal points of the second reflecting cup 22 and the third reflecting cup 23 are respectively connected with the focal point of the glass lens 10 and the included angle between the two connecting lines is 20 degrees, observing a light supplementing type isocandela graph realized by the second reflecting cup 22 and the third reflecting cup 23 and an obtained integral high beam graph. The luminous fluxes of the second and third beads 32 and 33 are 600Lum. The luminous flux of the first lamp beads 31 was 3480Lum.
Fig. 14 shows a light-supplementing type isotopy line diagram of the multi-bead double-light LED automotive headlamp according to the present embodiment when the included angle is 20 °. Fig. 15 shows an overall high beam pattern of the multi-bead dual-beam LED automotive headlamp of this embodiment at an included angle of 20 °.
As can be seen from fig. 14, the light type has no stray light, the output luminous flux is 507Lum, the central maximum brightness is 34800cd, the maximum brightness is better, the left and right width is about 18 degrees at maximum, the range is wide, and the light type is good. As can be seen from fig. 15, the stray light on the light type is less, the output luminous flux is 1910Lum, the central maximum brightness is 49700cd, the overall output luminous flux is high, and the uniformity of the light type is better.
(3) And when the focal points of the second reflecting cup 22 and the third reflecting cup 23 are respectively connected with the focal point of the glass lens 10 and the included angle between the two connecting lines is 30 degrees, observing a light supplementing type isocandela graph realized by the second reflecting cup 22 and the third reflecting cup 23 and an obtained integral high beam graph. The luminous fluxes of the second and third beads 32 and 33 are 600Lum. The luminous flux of the first lamp beads 31 was 3480Lum.
Fig. 16 shows a light-supplementing type isotopy line diagram of the multi-bead double-light LED automotive headlamp according to the present embodiment when the included angle is 30 °. Fig. 16 shows an overall high beam pattern of the multi-bead dual-beam LED automotive headlamp of this embodiment at an included angle of 30 °.
As can be seen from fig. 16, the light type has no stray light, the output luminous flux is 516Lum, the central maximum brightness is 37300cd, the maximum brightness is better, the left and right width is about 18 degrees at maximum, the range is wide, and the light type is good. As can be seen from fig. 17, the light type upper stray light is less, the output luminous flux is 1940Lum, the central maximum brightness is 54300cd, the overall output luminous flux is high, and the light type uniformity is good.
(4) And when the focal points of the second reflecting cup 22 and the third reflecting cup 23 are respectively connected with the focal point of the glass lens 10 and the included angle between the two connecting lines is 40 degrees, observing a light supplementing type isocandela graph realized by the second reflecting cup 22 and the third reflecting cup 23 and an obtained integral high beam graph. The luminous fluxes of the second and third beads 32 and 33 are 600Lum. The luminous flux of the first lamp beads 31 was 3480Lum.
Fig. 18 shows a light-supplementing type isotopy line diagram of the multi-bead dual-light LED automotive headlamp according to the present embodiment when the included angle is 40 °. Fig. 19 shows an overall high beam pattern of the multi-bead dual-beam LED automotive headlamp of this embodiment at an included angle of 40 °.
As can be seen from fig. 18, the light type has no stray light, the output luminous flux is 484Lum, the central maximum brightness is 37400cd, the maximum brightness is high, but the left and right width is smaller than 15 °, and the light supplementing range is narrow. As can be seen from fig. 19, the stray light on the light pattern was less, the output luminous flux was 1960Lum, the central maximum luminance was 58400cd, but the width was only 14 ° in the left and right directions, the light pattern had a significant luminance gradient change in the vicinity of horizontal 1 °, and the luminance was uneven.
In summary, from the comprehensive consideration of uniformity, brightness and stray light angles of the light pattern, the included angle is enabled to achieve the effects of good light pattern light filling and high brightness within the range of 10-40 degrees, and the effects of good light pattern light filling uniformity, high brightness and no stray light can be achieved within the range of 20-30 degrees. And in combination, the smaller the width sizes of the second reflecting cup and the third reflecting cup are, the more favorable for the structural design of the radiator, so that the included angle is 20 degrees, which is the optimal choice.
Example two
The present embodiment is different from the above embodiment in that, referring to fig. 20 to 23, the multi-bead dual-light LED automotive headlamp further includes a direct light supplementing mechanism.
The direct light supplementing mechanism adopts a direct light LED supplementing mechanism 50. The direct LED light supplementing mechanism 50 comprises a direct LED lamp bead 51, a direct light receiving lens 52 and a direct glass lens 53 which are sequentially arranged, wherein the direct glass lens 53 is arranged in the upper area of the glass lens 10.
The direct glass lens 53 is integrally formed with the glass lens 10.
Fig. 23 shows a high beam light-supplementing ray path diagram of the multi-bulb dual-light LED automotive headlamp of the present embodiment.
The other structures of the embodiment are the same as those of the first embodiment, and the direct high beam light supplementing can be further realized on the basis of the first embodiment.
Example III
The present embodiment is different from the above embodiment in that, referring to fig. 24 to 26, the multi-bead dual-light LED automotive headlamp further includes a direct laser light supplementing mechanism 60.
The direct laser light supplementing mechanism 60 includes a direct laser light source 61 and a high beam direct laser lens 62 corresponding thereto, and the high beam direct laser lens 62 is disposed in an upper region of the glass lens 10.
Also, as shown in fig. 27, the direct laser light supplementing mechanism 60 may include two sets symmetrically disposed at an upper region of the glass lens 10. I.e. comprising two direct laser sources 61, 63 and two high beam direct laser lenses 62, 64. The two high beam direct laser lenses 62, 64 are symmetrically disposed in the upper region of the glass lens 10, respectively. Fig. 27 shows a light supplementing ray path diagram of a direct laser light supplementing mechanism of the multi-bead dual-light LED automotive headlamp according to the present embodiment.
The other structures of the embodiment are the same as those of the first embodiment, and the high beam direct laser light supplementing can be further realized on the basis of the first embodiment.
Example IV
The second difference between this embodiment and the above-mentioned embodiment is that, referring to fig. 28 to 31, the multi-bead dual-light LED automotive headlamp includes three direct light supplementing mechanisms 70. The three direct light supplementing mechanisms 70 comprise three direct LED lamp beads 71, 72 and 73, three direct light collecting lenses 74, 75 and 76 and three direct glass lenses 77, 78 and 79, which respectively form three groups of direct light supplementing mechanisms. Three of the direct glass lenses 77, 78, 79 are uniformly disposed in the upper region of the glass lens 10.
Fig. 31 shows a light-supplementing light path diagram of a direct light supplementing mechanism of a multi-bulb double-light LED automotive headlamp according to the embodiment, which can realize more uniform direct light supplementing of high beam.
In the description of the present application, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "distal", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The above description is only of the preferred embodiments of the present application, and is not intended to limit the application in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present application.

Claims (10)

1. The utility model provides a many lamp pearls double-light LED automotive headlamp, includes lamp plate, reflector cup, light cutting mechanism and glass lens, its characterized in that, the reflector cup includes first reflector cup and sets up the second reflector cup and the third reflector cup of first reflector cup distal end, the reflector surface radius of curvature of second reflector cup and third reflector cup is the same, and all is different from the reflector surface radius of curvature of first reflector cup, be equipped with first lamp pearl, second lamp pearl and third lamp pearl on the lamp plate, the light of first lamp pearl emission is through after the reflection of first reflector cup, follow glass lens lower part parallel ejection, the light of second lamp pearl and third lamp pearl is respectively through after the reflection of second reflector cup and third reflector cup, follow glass lens lower part parallel ejection for the realization is right the light filling of first lamp pearl emission light.
2. The multi-bead bi-optic LED automotive headlamp of claim 1 wherein the radius of curvature of the reflective surfaces of the second and third reflective cups is less than the radius of curvature of the reflective surfaces of the first reflective cup.
3. The multi-bead dual-light LED automotive headlamp of claim 2 wherein the second and third reflector cups are symmetrically disposed along a centerline of the first reflector cup.
4. The multi-bulb dual-light LED automotive headlamp of claim 3, wherein the focal point of the second reflector cup and the focal point of the third reflector cup are respectively connected with the focal point of the glass lens, and an included angle between the two connection lines is 10-40 °.
5. The multi-bulb dual-light LED automotive headlamp of claim 4, wherein the focal point of the second reflector cup and the focal point of the third reflector cup are respectively connected with the focal point of the glass lens, and an included angle between the two connection lines is 20-30 °.
6. The multi-bulb dual-light LED automotive headlamp of claim 5, wherein the distance between the focal points of the second and third bulbs and the glass lens is equal and is 36.4-40.4 mm.
7. The multi-bulb dual-light LED automotive headlamp of claim 6, wherein the first, second and third bulbs are all disposed on the same side of the same lamp panel, and the first, second and third reflector cups are of unitary cup construction.
8. The multi-bead bi-optic LED automotive headlamp of any one of claims 1 to 7, further comprising at least one direct light supplemental mechanism.
9. The multi-bead dual-light LED automotive headlamp of claim 8, wherein the direct light supplementing mechanism employs a direct LED light supplementing mechanism comprising a direct LED bead, a direct light receiving lens and a direct glass lens sequentially disposed, the direct glass lens disposed in an upper region of the glass lens.
10. The multi-lamp-bead dual-light LED automotive headlamp of claim 8, wherein the direct-beam light supplementing mechanism employs a direct-beam laser light supplementing mechanism comprising a direct-beam laser light source and a high-beam direct-beam laser lens corresponding thereto, the high-beam direct-beam laser lens being disposed in an upper region of the glass lens.
CN202311148415.9A 2023-09-07 2023-09-07 Multi-lamp-bead double-light LED automobile headlamp Pending CN116972351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311148415.9A CN116972351A (en) 2023-09-07 2023-09-07 Multi-lamp-bead double-light LED automobile headlamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311148415.9A CN116972351A (en) 2023-09-07 2023-09-07 Multi-lamp-bead double-light LED automobile headlamp

Publications (1)

Publication Number Publication Date
CN116972351A true CN116972351A (en) 2023-10-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311148415.9A Pending CN116972351A (en) 2023-09-07 2023-09-07 Multi-lamp-bead double-light LED automobile headlamp

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