DE112020001664T5 - Low beam distribution structure for automobiles - Google Patents

Abstract

A low beam distribution structure for automobiles is disclosed, with which light beams emitted by light sources can be shaped into a low beam pattern. At least two successively arranged light sources are provided in the low beam distribution structure, and the low beam distribution structure comprises a first inner lens (1) which can form a light / dark boundary contour in the transmitted light rays, a second inner lens (2) which downstream of the first inner lens (1) is arranged in the beam path, and an outer lens (3) which is arranged downstream of the second inner lens (2) in the beam path. The low beam distribution structure forms a light / dark boundary contour by using the optical exit ends of the lenses, i.e. the optical surfaces of the lenses, so that no deflector plate is required, thereby overcoming the disadvantages of conventional low beam distribution structures that use a deflector plate light distribution structures with different shapes and dimensions can be realized and the requirements for the variety of shapes of motor vehicle lamps are met.

Description

TECHNICAL FIELD

The present invention relates to the technical field of motor vehicle lamps, and more particularly to a low beam distribution structure for motor vehicles.

BACKGROUND

With the development of light sources for car lamps, the light distribution structures of car lamps have also developed rapidly, from halogen lamps in the initial phase to xenon lamps in the later phase to LED and laser light sources. As a result, car lamps are becoming more and more intelligent and diverse in their shape. Among the various kinds of light sources for automobile lamps, the LED light sources are gradually gaining the attention of major automobile manufacturers because of their excellent performance and low cost. With the development of LED light sources, the associated light distribution structures were gradually developed further, from the shape of the reflector shell in the initial phase to the shape of the reflector shell with lenses to the shape of the lenses alone; The light distribution patterns of car lamps are also being expanded more and more.

Nowadays, most of the automotive lamps use optical solutions of pure reflection, reflection plus projection or pure projection, with the pure reflection solution and the reflection plus projection solution being used most often, while the pure projection solution is rarely used. In addition, most automotive headlamp low beam distribution modules use a baffle to create a low beam pattern. Because of the presence of the baffle, the overall dimensions of the modules are limited to some extent, and it is difficult to further improve the low beam distribution modules to meet the demands on the variety of shapes of automotive lamps.

OVERVIEW

In view of the above problems, the present invention aims to provide a low beam distribution structure for automobiles in order to overcome the shortcomings of existing low beam distribution structures using a baffle and to meet the requirement for the variety of shapes of automotive lamps.

• Abblendlicht-Verteilungsstruktur für Kraftfahrzeuge, um die von Lichtquellen emittierten Lichtstrahlen so zu beeinflussen, dass sie ein Abblendlichtmuster bilden, umfassend:
  • eine erste innere Linse, die erste optische Eintrittsenden, die mit den Lichtquellen zahlenmäßig übereinstimmen und die die von den Lichtquellen emittierten Lichtstrahlen empfangen, und
  • erste optische Austrittsenden zum Austreten der Lichtstrahlen aus der ersten inneren Linse aufweist, wobei mindestens zwei der ersten optischen Eintrittsenden in zwei Gruppen zur kollimierten Übertragung bzw. zur konvergierten Übertragung der empfangenen Lichtstrahlen ausgebildet sind, und die ersten optischen Austrittsenden so ausgebildet sind, dass sie in den übertragenen Lichtstrahlen eine Hell-Dunkel-Grenzkontur bilden;
  • eine zweite innere Linse, die stromabwärts der ersten inneren Linse im Strahlengang angeordnet ist, um die übertragenen Lichtstrahlen zu konvergieren, und zweite optische Eintrittsenden für den Empfang der übertragenen Lichtstrahlen und zweite optische Austrittsenden für den Austritt der Lichtstrahlen aus der zweiten inneren Linse aufweist,
  • eine Außenlinse, die stromabwärts der zweiten Innenlinse im Strahlengang angeordnet ist und dritte optische Eintrittsenden für den Empfang der übertragenen Lichtstrahlen und dritte optische Austrittsenden für den Austritt der Lichtstrahlen aus der Außenlinse aufweist.

In order to achieve the above-described object, the following technical solution is applied to the present invention:

• A low beam distribution structure for automobiles for influencing the light beams emitted by light sources to form a low beam pattern, comprising:
  • a first inner lens, the first optical entrance ends which are coincident in number with the light sources and which receive the light rays emitted from the light sources, and
  • having first optical exit ends for the exit of the light beams from the first inner lens, wherein at least two of the first optical entry ends are formed in two groups for the collimated transmission or for the converged transmission of the received light beams, and the first optical exit ends are formed so that they are in the transmitted light rays form a light-dark boundary contour;
  • a second inner lens, which is arranged downstream of the first inner lens in the beam path in order to converge the transmitted light rays, and has second optical entry ends for receiving the transmitted light rays and second optical exit ends for the exit of the light rays from the second inner lens,
  • an outer lens which is arranged downstream of the second inner lens in the beam path and has third optical entry ends for receiving the transmitted light beams and third optical exit ends for the exit of the light beams from the outer lens.

In addition, according to a further exemplary embodiment, the outer lens comprises a main body which receives the first inner lens and the second inner lens, and an optical part provided on the main body, the third optical entry ends and the third optical exit ends being arranged on the opposite sides of the optical part are.

Furthermore, according to a further exemplary embodiment, the first optical entry end comprises a recess let into the first inner lens and a projection which is formed on the bottom of the recess and projects in the direction of the opening of the recess; In the two groups of the first optical entry ends for the collimated transmission or the converged transmission of the received light beams, the projections protrude to different degrees, and so do the cross-sections of the first optical entry ends orthogonal to the direction of transmission of the light beams are of different sizes.

The first optical exit ends are preferably also flat first light exit surfaces which are formed on the first inner lens.

Furthermore, the second optical entry ends are preferably designed as flat second light entry surfaces on the second inner lens and are arranged opposite the first light exit surfaces.

In addition, according to a preferred embodiment, the second optical exit ends have curved convex second light exit surfaces which correspond in number to the first optical entry ends, and the second light exit surfaces are designed in a one-to-one correspondence with the first optical entry ends.

In addition, according to a further exemplary embodiment, the third optical entry ends comprise third light entry surfaces, which are designed corresponding to the first optical entry ends for the convergent transmission of the light beams, and fourth light entry surfaces, which are designed corresponding to the first optical entry ends for the collimated transmission of the light beams, and the third optical Exit ends comprise curved convex third light exit surfaces which are formed on the outer lens; the fourth light entry surfaces are adapted to the third light exit surfaces and the third light entry surfaces are curved surfaces which protrude in the direction of the side of the second inner lens.

If two first optical entry ends are provided for the collimated transmission of the light rays or two first optical entry ends for the converged transmission of the light rays, two third light entry surfaces are provided corresponding to the two first optical entry ends for the converged transmission of the light rays and in one-to-one correspondence to the two first optical entry ends designed for the converged transmission of the light beams.

According to a further embodiment, the first inner lens is formed with fastening pins, the second inner lens with through holes through which the fastening pins can protrude, and the outer lens with fastening holes for inserting the fastening pins in order to fasten the first inner lens and the second inner lens.

In addition, the outer lens may be formed with mounting holes adjacent to the attachment holes for attaching the outer lens to an external member.

• Die Abblendlicht-Verteilungsstruktur für Kraftfahrzeuge, die durch die vorliegende Erfindung zur Verfügung gestellt wird, bildet eine Hell/Dunkel-Grenzkontur, indem die optischen Austrittsenden der Linsen, insbesondere die optischen Oberflächen der Linsen, verwendet werden, so dass eine Umlenkplatte nicht erforderlich ist, wodurch die Mängel herkömmlicher Abblendlicht-Verteilungsstrukturen, die eine Umlenkplatte verwenden, vermieden werden, so dass Licht-Verteilungsstrukturen mit unterschiedlichen Formen und Abmessungen realisierbar sind und die Anforderung an die Formvielfalt von Kraftfahrzeuglampen erfüllt wird.

Compared with the prior art, the present invention has the following advantages:

• The low beam distribution structure for motor vehicles provided by the present invention forms a light / dark boundary contour by using the optical exit ends of the lenses, in particular the optical surfaces of the lenses, so that a baffle is not required, whereby the shortcomings of conventional low beam distribution structures that use a baffle are avoided, so that light distribution structures with different shapes and dimensions can be realized and the requirement for the variety of shapes of motor vehicle lamps is met.

In addition, by arranging the first inner lens and the second inner lens on the outer lens, the overall low beam distribution structure for automobiles is improved within the scope of the present invention, and the structural configuration of the first optical entry ends can detect the light rays emitted from the light sources in order to to reduce the loss of light rays. By arranging the optical entrance ends and exit ends of the outer lens, the resulting low beam pattern with a light-dark boundary contour is better, and the attachment between the mounting posts and the mounting holes can facilitate the assembly of the lenses.

Figure list

• 1 ist ein schematisches Gesamtdarstellung der Licht-Verteilungsstruktur gemäß einer Ausführungsform der vorliegenden Erfindung;
• 2 ist eine schematische Darstellung der Struktur der ersten inneren Linse gemäß einer Ausführungsform der vorliegenden Erfindung;
• 3 ist eine Schnittdarstellung des ersten optischen Eintrittsendes gemäß einer Ausführungsform der vorliegenden Erfindung;
• 4 ist eine schematische Darstellung der Unterschiede zwischen den beiden Gruppen der ersten optischen Eintrittsenden gemäß einer Ausführungsform der vorliegenden Erfindung;
• 5 ist eine rückwärtige Ansicht der ersten inneren Linse gemäß der Ausführungsform der vorliegenden Erfindung;
• 6 ist eine schematische Darstellung der Strahlenübertragung durch die erste innere Linse gemäß einer Ausführungsform der vorliegenden Erfindung;
• 7 ist eine schematische Darstellung der Struktur der zweiten inneren Linse gemäß einer Ausführungsform der vorliegenden Erfindung;
• 8 ist eine schematische Darstellung der Strahlenübertragung durch die zweite innere Linse gemäß einer Ausführungsform der vorliegenden Erfindung;
• 9 ist eine schematische Darstellung der Struktur der Außenlinse gemäß einer Ausführungsform der vorliegenden Erfindung;
• 10 ist eine Frontansicht der Außenlinse gemäß der Ausführungsform der vorliegenden Erfindung;
• 11 ist eine Schnittdarstellung A-A der Struktur aus 10;
• 12 zeigt den Strahlengang der Lichtstrahlen an den ersten optischen Eintrittsenden zur Lichtkonvergenz in der Lichtverteilungsstruktur gemäß einer Ausführungsform der vorliegenden Erfindung;
• 13 zeigt die Lichtmuster der Lichtverteilungsstruktur gemäß einer Ausführungsform der vorliegenden Erfindung.

The accompanying figures, which are part of the present invention, serve to further understand the present invention. The illustrative embodiments of the present invention and their description serve to explain the present invention, but do not represent an impermissible restriction of the present invention. The figures show:

• 1 Fig. 3 is an overall schematic diagram of the light distribution structure according to an embodiment of the present invention;
• 2 Fig. 3 is a schematic diagram showing the structure of the first inner lens according to an embodiment of the present invention;
• 3 Figure 13 is a cross-sectional view of the first optical entry end in accordance with an embodiment of the present invention;
• 4th Figure 3 is a schematic illustration of the differences between the two groups of first optical entry ends in accordance with an embodiment of the present invention;
• 5 Fig. 13 is a rear view of the first inner lens according to the embodiment of the present invention;
• 6th Figure 3 is a schematic illustration of radiation transmission through the first inner lens in accordance with an embodiment of the present invention;
• 7th Fig. 3 is a schematic diagram showing the structure of the second inner lens according to an embodiment of the present invention;
• 8th Figure 3 is a schematic illustration of radiation transmission through the second inner lens in accordance with an embodiment of the present invention;
• 9 Fig. 3 is a schematic diagram of the structure of the outer lens according to an embodiment of the present invention;
• 10 Fig. 13 is a front view of the outer lens according to the embodiment of the present invention;
• 11th FIG. 14 is a cross-sectional view AA of the structure of FIG 10 ;
• 12th shows the beam path of the light beams at the first optical entry ends for light convergence in the light distribution structure according to an embodiment of the present invention;
• 13th Fig. 10 shows the light patterns of the light distribution structure according to an embodiment of the present invention.

List of reference symbols

1 -

first inner lens,

2 -

second inner lens,

3 -

Outer lens;

101 -

first optical entry end,

102 -

first optical exit end,

103 -

Outline,

104

- fixing pin;

201 -

second optical entry end,

202 -

second optical exit end,

203 -

Through hole,

204 -

Through hole;

301 -

Main body,

302 -

optical part,

303 -

Mounting hole,

304 -

Mounting hole;

1010 -

Deepening,

1011 -

Head Start,

1012 -

first optical surface,

1013 -

second optical surface,

1014 -

third optical surface,

3021 -

third optical entry end,

3022 -

third optical exit end,

30211 -

third light entry surface,

30212 -

fourth light entry surface.

DETAILED DESCRIPTION

It should be noted that the embodiments and the features of the embodiments in the present invention can be freely combined provided that they do not conflict with each other.

In the following, the present invention will be described in detail in embodiments with reference to the accompanying drawings.

One embodiment of the present invention relates to a low beam distribution structure for automobiles which is used to shape the light beams emitted from light sources into a low beam pattern. The light sources that belong to the light distribution structure in this embodiment are at least two successively arranged light sources; in particular, four light sources are provided in this embodiment, and the light sources are usually LED units. As in 1 As shown, the low beam distribution structure for automobiles in this embodiment generally includes a first inner lens 1 , a second inner lens 2 and an outer lens 3 and forms an optical model of a pure projection lens by using the two inner lenses and the outer lens in combination.

As for the two inner lenses and the outer lens 3 in this embodiment, so has the first inner lens 1 , as in 2 shown first optical entry ends 101 corresponding in number to the light sources (not shown) to detect the light beams emitted from the light sources, and first optical exit ends 102 for the exit of the light rays from the first inner lens 1 . Four first optical entry ends 101 are designed in two groups for the collimated transmission or for the converged transmission of the incoming light beams, with two first optical entry ends in each group 101 condition. In addition, the first inner lens 1 in this embodiment due to the design of the first optical exit ends 102 in accordance with the formation of two groups of first optical entry ends 101 to the collimated Transmission or converged transmission of the light rays also form a light / dark boundary contour in the transmitted light rays.

As in 3 shown comprises the first optical entry end 101 the first inner lens 1 in the present embodiment in particular a depression 1010 that is in the end portion of the first inner lens 1 is let in, and a ledge 1011 , the one at the bottom of the recess 1010 is formed and in the direction of the opening of the recess 1010 protrudes. The deepening 1010 and the lead 1011 can the in 3 have shapes shown. There is also a first optical surface 1012 on the outer wall of the protrusion 1011 designed to take some light rays from the light sources into the first inner lens 1 initiate a second optical surface 1013 is on the side wall of the recess 1010 configured to refract other light rays from the light sources and a third optical surface 1014 is on the outer wall of the first inner lens 1 formed with the second optical surface 1013 cooperates to that of the second optical surface 1013 completely reflecting refracted light rays.

By the arrangement of the recess 1010 , the projection 1011 and the three optical surfaces may have the first optical entrance end 101 in this embodiment most of the light beams emitted by the light sources by means of the first optical surface 1012 focus and collect while the second optical surface 1013 other light rays emitted from the light sources can refract, and then the third optical surface 1014 can completely reflect the refracted light rays, so that the light rays emitted by the light sources can be used essentially completely, whereby an improvement in the use of the light rays emitted by the light sources can be achieved compared to the design of the optical entry ends of existing lenses.

It should be noted that a desired light pattern can be obtained by adjusting the curvature between the three optical surfaces of the first optical entrance ends 101 can be achieved. Of course, the specific curvature properties of the three optical surfaces mentioned above can be selected in the construction according to the actual requirements of the low beam and will not be described in further detail here.

Based on the above description of the first optical entry ends 101 , as in 4th is shown in this embodiment in the two groups of first optical entry ends 101 for the collimated transmission or for the converged transmission of the received light rays from the light source, the height of the projections 1012 a group of first optical entry ends 101 different from that of the other group of first optical entry ends 101 , and there is a height difference t between them; also are the cross sections of the two groups of first optical entry ends 101 orthogonal to the beam transmission direction of different sizes (ie, the outer diameters are different), so that different optical functions (collimation or convergence of the light beams) can be realized with the aid of the structural differences mentioned above.

In this embodiment, the height difference t between the projections can be 1012 of the two groups of the first optical entry ends 101 and the different outside diameters of the cross-sections of the two groups of the first optical entry ends 101 can be chosen according to the actual requirements in order to achieve the effect of radiation transmission through the first inner lens 1 to be implemented as described below.

According to this embodiment, the first are output optical ends 102 in particular flat first light exit surfaces on the first inner lens 1 are trained. As in the 2 , 5 and 12th is shown because the optical exit surfaces are at the end of the first inner lens 1 with the first optical exit ends 102 are formed, a recess is formed below the first optical exit surfaces; In addition, as in the 6th and 12th shown the focal point of the first optical entrance ends 101 in the convergence group (i.e. the first optical entry ends 101 for the convergent transmission of the light rays) entering light rays on the lower boundary (ie the contour line 103 ) the first optical surface. The contour line 103 is the boundary line between the first optical surface and the recess below the first optical surface, and the first inner lens 1 generated due to the formation of the contour line 103 a preliminary light pattern with a light / dark boundary contour.

The shape of the contour line 103 determines the shape of the emerging light rays. In this embodiment the contour line has 103 especially the shape of broken lines. As in 6th as shown, the two groups of first optical entry ends effect 101 a collimated (ie essentially parallel) and converged transmission of the light rays, and the flat first light exit surface does not change the transmission of parallel light rays, but rather scatters angled light rays. In addition, the light rays become in the convergence group due to the fact that the Contour line 103 is inverted relative to the cut-off line of the low beam pattern on the contour line 103 focused and turned over on the first light exit surface after they have been focused, so that the corresponding light rays form a corresponding optical pattern.

In this embodiment, the second inner lens is 2 downstream of the first inner lens 1 formed in the beam path in order to converge the transmitted light rays. As in 7th shown has the second inner lens 2 second optical entry ends 201 for the entrance of the first inner lens 1 transmitted light rays and second optical exit ends 202 for the exit of the light rays from the second inner lens 2 .

In particular, the second are optical entry ends 201 second light entry surfaces on the second inner lens 2 are formed, and each of the second light entry surfaces has a planar structure which is opposite the first light exit surface. The second optical output ends 202 comprise curved, convex second light exit surfaces which form the first optical entrance ends 101 correspond in number, and the second light exit surfaces are in one-to-one correspondence with the first optical entrance ends 101 educated. The transmission of light rays through the second inner lens 2 is in 8th shown, in which the flat second light entry surface does not change any parallel light rays, but angled light rays converges so that the light rays into the second inner lens 2 enter. After the light rays are converged by the second light exit surface, the light rays become in the convergence group (ie, the light rays that end the first optical entrance 101 for the converged transmission of the light rays correspond) approximately parallel, while the light rays in the collimation group (i.e. the light rays that end the first optical entrance 101 correspond to the collimated transmission of the light rays) so that the preliminary optical pattern passed through the first inner lens 1 was produced, is further shaped.

In this embodiment, the outer lens is 3 in the beam path downstream of the second inner lens 2 educated. As in 9 shown has the outer lens 3 also third optical entry ends 3021 for the entrance of the second inner lens 2 emerging light rays and third optical exit ends 3022 for the exit of the light rays from the outer lens 3 . Specifically, includes the structure of the outer lens 3 in this embodiment a main body 301 for carrying the first inner lens 1 and the second inner lens 2 and an optical part 302 that is on the main body 301 is trained. The optical transfer function of the outer lens 3 is through the optical part 302 realized, and the aforementioned third optical entry ends 3021 and third optical exit ends 3022 are on two opposite sides of the optical part 302 educated.

As in the 10 and 11th as shown, the third include optical entrance ends 3021 third light entry surfaces 30211 corresponding to the first optical entry ends 101 for the convergent transmission of the light rays (ie the first two optical entry ends 101 in the convergence group) are formed, and fourth light entry surfaces 30212 corresponding to the first two optical entry ends 101 are designed for the collimated transmission of the light beams. In addition, the third are light entry surfaces 30211 two the first optical entry ends 101 areas associated in the convergence group which correspond in one-to-one correspondence to the corresponding first optical entrance ends 101 are formed, while the third optical exit ends 3022 in this embodiment curved convex third light entry surfaces, which are on the outer lens 3 are trained.

In this embodiment is the fourth light entry surface 30212 specially adapted to the third light exit surface, and the third light entry surface 30211 is a curved surface that is to the side of the second inner lens 2 protrudes. With the above corresponding configuration, that is, the curvature of the fourth light entry surface 30212 is the same as that of the third light exit surface, the section of the optical part becomes 302 , that of the fourth light entry surface 30212 corresponds, shaped to a structure with a uniform wall thickness, which has no optical effect on the light rays, while the convex third light entry surface 30211 the light rays can further converge, so that the light rays in the convergence group through the outer lens 3 can be converged, whereby the brightness at the light / dark boundary in the low beam pattern can be increased. The transmission of the light beam through the outer lens 3 is in 11th shown.

In this embodiment, both inner lenses are on the outer lens 3 attached to improve the whole structure of the light distribution. As far as the specific form of attachment is concerned, in a preferred embodiment the first inner lens 1 with fastening pins 104 formed, the second inner lens 2 is with through holes 203 formed through which the fastening pins 104 can protrude, and the outer lens 3 is with mounting holes 303 formed into which the fastening pins 104 can be inserted so that the mounting pins through the through holes 203 protrude and can be inserted into the mounting holes 303, whereby the two inner lenses are mounted and fixed.

In addition to the mounting holes 303 can in this embodiment to facilitate the unitary assembly of the light distribution structure in the outer lens 3 next to the mounting holes 303 Mounting holes 304 be provided to the outer lens 3 to be attached to an external element. The attachment via the mounting holes 304 can be done with the conventional technique of the prior art. In this embodiment, in order to further improve the refinement of the light distribution structure and reduce the loss of light rays, the main body 301 the outer lens 3 be formed with a receiving shaft, as in 9 shown; the optical part 302 forms the bottom of the receiving shaft and the end of the second inner lens 2 with the second optical output ends 202 can be partially formed in the receiving shaft.

In the light distribution structure in this embodiment, the optical path is the light rays that enter the first optical entrance 101 correspond in the convergence group, in 12th and the overall light pattern of the light distribution structure is shown in FIG 13th shown. The light pattern is generally made up of a light pattern 1 and a light pattern 2 together, which are each generated jointly by combining several light beams. The light pattern 1 forms the low beam pattern at the cut-off line and is smaller than the light pattern 2 , but has a higher brightness than the light pattern 2 , whereby the lighting effect in front of the automobile can be improved. The light pattern 2 forms the light pattern of the widened part to widen the area of the low beam pattern so that the objects on the two sides can be illuminated within a certain range in front of the automobile.

Although the present invention is described above in some preferred embodiments, the present invention is not limited to these preferred embodiments. Any change, equivalent substitution, or improvement made without departing from the spirit and principle of the present invention is deemed to fall within the scope of the present invention.

Claims (10)

Low beam distribution structure for motor vehicles, for configuring light beams emitted by light sources so that a low beam pattern is formed, the light sources being formed by at least two successively arranged light sources, and the low beam distribution structure for motor vehicles comprising: a first inner lens (1), the first optical entrance ends (101) which coincide in number with the light sources and receive the light rays emitted from the light sources, and first optical exit ends (102) for exiting the light rays from the first inner lens (1) comprises, wherein at least two of the first optical entry ends (101) are designed in two groups for the collimated transmission or for the converged transmission of the received light beams, and the first optical exit ends (102) are designed so that they have a bright- Form dark border contour; a second inner lens (2) which is arranged downstream of the first inner lens (1) in the beam path in order to converge the transmitted light rays, and the second optical entry ends (201) for receiving the transmitted light rays and second optical exit ends (202) for the exit of the light rays from the second inner lens (2), an outer lens (3) which is arranged downstream of the second inner lens (2) in the beam path and comprises third optical entry ends (3021) for receiving the transmitted light rays and third optical exit ends (3022) for exiting the light rays from the outer lens (3) . Automobile low beam distribution structure according to Claim 1 wherein the outer lens (3) comprises a main body (301) which houses the first inner lens (1) and the second inner lens (2), and an optical part (302) formed on the main body (301), the third optical entry ends (3021) and the third optical exit ends (3022) are formed on the opposite sides of the optical part (302). Low beam distribution structure for automobiles according to Claim 2 wherein the first optical entry end (101) has a recess (1010) embedded in the first inner lens (1) and a projection (1012) which is formed at the bottom of the recess (1010) and in the direction of the opening of the recess (1010) protrudes, includes; In the two groups of the first optical entry ends (101) for the collimated transmission or the converged transmission of the received light beams, the projections (1012) protrude to different degrees, and the cross-sections of the first optical entry ends (101) orthogonal to the direction of transmission of the light beams are of different sizes . Low beam distribution structure for automobiles according to Claim 3 , wherein the first optical exit ends (102) are flat first light exit surfaces which are formed on the first inner lens (1). Low beam distribution structure for automobiles according to Claim 4 , wherein the second optical entry ends (201) are flat second light entry surfaces which are formed on the second inner lens (2) and are formed opposite the first light exit surfaces. Low beam distribution structure for automobiles according to Claim 5 , wherein the second optical exit ends (202) comprise curved convex second light exit surfaces which correspond in number to the first optical entry ends (101), and the second light exit surfaces with the first optical entry ends (101) are designed in a one-to-one correspondence . Low beam distribution structure for automobiles according to Claim 6 , wherein the third optical entry ends (3021), third light entry surfaces (30211), which are formed corresponding to the first optical entry ends (101) for convergent transmission of the light beams, and fourth light entry surfaces (30212) which are designed to collimate corresponding to the first optical entry ends (101) Transmission of the light beams are formed, include, and the third optical exit ends (3022) include curved convex third light exit surfaces which are formed on the outer lens (3); the fourth light entry surfaces (30212) are adapted to the third light exit surfaces and the third light entry surfaces (30211) are curved surfaces which protrude in the direction of the side of the second inner lens (2). Low beam distribution structure for automobiles according to Claim 6 , two first optical entry ends (101) for the collimated transmission of the light beams or two first optical entry ends (101) for the converged transmission of the light beams, two third light entry surfaces (30211) corresponding to the two first optical entry ends (101) for the converged transmission of the light beams are provided and are designed in one-to-one correspondence to the two first optical entry ends (101) for the converged transmission of the light beams. Low beam distribution structure for automobiles according to any one of Claims 2 until 8th wherein the first inner lens (1) is formed with fastening pins (104), the second inner lens (2) is formed with through holes (203) through which the fastening pins (104) can protrude, and the outer lens (3) with fastening holes (303) is designed for inserting the fastening pins (104) in order to fasten the first inner lens (1) and the second inner lens (2). Low beam distribution structure for automobiles according to Claim 9 wherein the outer lens (3) is formed with mounting holes (304) adjacent to the attachment holes (303) for attaching the outer lens (3) to an external member.

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