JP7215656B2 - LIGHT GUIDING LENS HOLDING STRUCTURE AND VEHICLE LAMP - Google Patents

Description

The present invention relates to a light guide lens holding structure and a vehicle lamp.

2. Description of the Related Art Conventionally, there has been known a vehicle lamp that includes a light guide lens body and a holder that holds the light guide lens body (see, for example, Patent Literature 1 (FIG. 4, etc.)).

In Patent Literature 1, the light guide lens body is held by a holder in a state in which a light guide portion extending from the rear surface of the light guide lens body toward the light source is inserted into a through hole formed in the holder.

JP 2018-106889 A

However, in the vehicle lamp described in Patent Document 1, positioning of the light guide lens body with respect to the holder is not taken into consideration, and there is a problem that it is difficult to hold the light guide lens body in a state of being positioned with respect to the holder. be.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a light guide lens holding structure and a vehicle lamp capable of holding a light guide lens body in a positioned state with respect to a holder. .

In order to achieve the above object, one aspect of the present invention provides a vehicle lamp that includes a light source, a light guide lens body that receives light from the light source, and a holder that holds the light guide lens body, The light guide lens body includes a light guide portion and an extension portion extending from the light guide portion and having no optical function , and the light source is arranged to face the light guide portion. The light lens body includes a front surface and an opposite rear surface, the rear surface of the light guide lens body includes the light guide section and the extension section, and the light guide section is attached to the light guide section. The incident light from the light source is configured to form a luminous intensity distribution on the front surface of the light guide lens body, the holder includes a front surface and a rear surface opposite to the front surface, and the extension part is the guide lens. extending from the light portion in a direction orthogonal to the front-rear direction of the light guide lens body, the light guide portion and the extension portion extending toward the rear surface of the light guide lens body; A through hole into which the extension portion is inserted is formed, the through hole is a through hole penetrating the front surface and the rear surface of the holder, and an inner wall of the through hole extends through the light guide lens body. A positioning holding part is included that holds the light guide lens body in a positioned state with respect to the holder. It is characterized by being held in a state of being positioned with respect to the holder.

According to this aspect, it is possible to provide a light guide lens holding structure capable of holding the light guide lens body in a positioned state with respect to the holder.

This is because the holder is formed with a through hole into which the light guide part and the extension part are inserted and disposed, and the inner wall of the through hole holds the light guide lens body in a positioned state with respect to the holder. By including a positioning retainer.

In the above invention, a preferred aspect is characterized in that the positioning and holding portion holds the light guide lens body in a state in which the light guide portion and the inner wall of the through hole are partly or wholly separated from each other. .

According to this aspect, even if the light guiding lens body is selected from among a plurality of light guiding lens bodies having mutually different specifications of the light guiding portion and mutually identical specifications of the extension portion, the selected light guiding lens body The light guiding lens body thus formed can be held in a state of being positioned with respect to the holder.

This is because the positioning and holding part holds the light guide lens body in a state where the light guide part and the inner wall of the through hole are partly or wholly separated from each other.

Further, in the above invention, in a preferred mode, the light guide lens body includes a front surface and a rear surface opposite to the front surface, the rear surface includes the light guide section and the extension section, and the holder includes: The holder includes a front surface and a rear surface opposite to the front surface, and the through hole is a through hole passing through the front surface and the rear surface of the holder.

According to this aspect, the light guide lens body including the light guide portion and the extension portion, and the holder formed with the through hole (the through hole passing through the front surface and the rear surface) into which the light guide portion and the extension portion are inserted and arranged. , can be provided.

In a preferred aspect of the above invention, the light guiding lens body includes a flange portion provided at the front opening end of the light guiding lens body, and the front surface of the holder faces the flange portion. characterized by

According to this aspect, the light guiding lens body (flange portion) can be held between the holder (front surface) and another member (for example, the flange portion of the primary lens).

In the above invention, a preferred mode is characterized in that the extension portion extends from the light guide portion via a stepped portion.

According to this aspect, since the extension part is extended through the stepped part, the specifications of the extension part of each of the plurality of light guide lens bodies having mutually different specifications of the light guide part are different from the case where the stepped part is not provided. can be easily integrated.

In the above invention, a preferred aspect is characterized in that the positioning and holding portion is a rib portion.

According to this aspect, since the rib portion abuts on the extension portion, it is possible to improve the positioning accuracy of the lens body with respect to the holder as compared with the case where the rib portion is not provided.

Further, in the above invention, in a preferred mode, the positioning and holding part is adapted to attach the light guide lens body to the holder by abutting on a rear end portion of an extension part of the light guide lens body inserted into the through hole. It is characterized in that it is held in a state of being positioned with respect to it.

According to this aspect, compared to the case where the positioning and holding portion abuts from the front end to the rear end of the extension of the light guide lens, the insertion position of the extension into the through hole (positioning of the light guide lens with respect to the holder) is improved. easier.

In the above invention, a preferred mode is characterized by further comprising a projection lens for projecting the light intensity distribution formed on the front surface of the light guiding lens body to form a light distribution pattern corresponding to the light intensity distribution. do.

According to this aspect, it is possible to provide a vehicle lamp having a light guide lens holding structure capable of holding the light guide lens body in a positioned state with respect to the holder.

In the above invention, a preferred mode is that the light source includes a low-beam light source, the light guide section includes a first light guide section into which light from the low-beam light source enters, and the first light guide section receives light from the low-beam light source. the light from the low-beam light source entering the first light guide portion forms a light intensity distribution corresponding to the low-beam light distribution pattern on the front surface of the light guide lens body; The extension portion is extended from the first light guide portion , and the extension portion is provided in a range where the direct light from the low-beam light source does not pass .

According to this aspect, it is possible to provide a vehicle lamp having a light guide lens holding structure suitable for a low beam light distribution pattern.

This is due to the extension extending from the first light guide.

In a preferred aspect of the above invention, the rear surface of the light guide lens body further includes a second light guide portion arranged below the first light guide portion, and the light source includes an ADB light source. and the second light guide part is configured such that the light from the ADB light source that enters the second light guide part forms a light intensity distribution corresponding to the ADB light distribution pattern on the front surface of the light guide lens body. It is characterized by:

According to this aspect, it is possible to form an ADB light distribution pattern in addition to the low beam light distribution pattern.

In a preferred aspect of the above invention, the rear surface of the light guide lens body further includes a third light guide portion arranged below the first light guide portion, and the light source includes a high beam light source. and the third light guide portion is configured such that the light from the high beam light source entering the third light guide portion forms a light intensity distribution corresponding to the high beam light distribution pattern on the front surface of the light guide lens body. It is characterized by:

According to this aspect, it is possible to form a high beam light distribution pattern in addition to the low beam light distribution pattern.

Further, in the above invention, in a preferred mode, the light guide lens body is selected from a plurality of light guide lens bodies in which the specifications of the light guide portions are different from each other and the specifications of the extension portions are the same. and the through hole is a light guide part of the selected light guide lens body and the light guide part of the selected light guide lens body It is characterized in that the extension is configured to be inserted into the through hole.

According to this aspect, the specifications of the holder can be unified (that is, there is no need to prepare a plurality of holders with different through-hole shapes), and the specifications of the light guide section (shape, size, etc.) ) is selected from a plurality of lens bodies different from each other, the holding structure can hold the selected lens body in a state of being positioned with respect to the holder. can.

The reason why the specifications of the holder can be unified is that even when any one of the plurality of lens bodies is selected as the through hole, the light guide part and the extension of the selected lens body are inserted into the through hole. This is because it is configured in a shape in which the portion is inserted and arranged.

Even when any lens body is selected from a plurality of lens bodies having different specifications (shape, size, etc.) of the light guide part, the selected lens body is held in a state of being positioned with respect to the holder. This is possible by providing an extension extending from the light guiding section, and by including a positioning holding section on the inner wall of the through hole for holding the lens body in a positioned state with respect to the holder. be.

Moreover, according to this aspect, the specifications of the holder can be unified, so the cost is reduced compared to the case of preparing a plurality of holders with different through-hole shapes.

In addition, according to this aspect, the specifications of the holder can be unified. (simplification of the manufacturing process).

1 is a perspective view of a vehicle lamp 10; FIG. 1(a) is a top view of the vehicle lamp 10, (b) is a front view, and (c) is a side view. FIG. FIG. 2 is a cross-sectional view of the vehicle lamp 10 shown in FIG. 1 taken along a horizontal plane including a reference axis AX (a plane including the X-axis and the Y-axis). FIG. 2 is a cross-sectional view of the vehicle lamp 10 shown in FIG. 1 cut along a vertical plane including a reference axis AX (a plane including the X-axis and the Z-axis). 1 is an exploded perspective view of a vehicle lamp 10; FIG. 3 is a perspective view of a structure in which a heat sink 20, a light source module 30, a holder 40 and a light guiding lens body 50 are combined; FIG. 3 is a perspective view of a light guiding lens body 50; FIG. (a) a partial front view of the upper light guiding lens body 52, (b) a partial front view of the lower light guiding lens body 53, It is a front view (perspective view) of the light source 32b for ADB. (a) Example of light distribution pattern P _Lo for low beam, (b) Example of light distribution pattern P _ADB for ADB, (c) Synthetic light distribution pattern including light distribution pattern P _Lo for low beam and light distribution pattern P _ADB for ADB An example (d) is a diagram showing a state in which a plurality of areas (for example, a plurality of areas A1 to A4 that are individually turned on/off) forming a light distribution pattern for ADB overlap each other in a circular shape. 4 is an exploded perspective view of a light guide lens body 50A and a holder 40A that constitute the light guide lens holding structure 90. FIG. (a) A rear view of the light guiding lens body 50A, (b) a rear view of the holder 40A. (a) Example of light guide portions 52d and 53d of light guide lens body 50A1 of first specification (rear view), (b) Example of light guide portions 52d and 53d of light guide lens body 50A2 of second specification (rear view) ) and (c) are rear views around a through hole 42c of the holder 40A. (a) Rear view around through hole 42c of holder 40 with light guide portions 52d and 53d and extension portion 52g of first specification light guide lens body 50A1 inserted, (b) Second specification light guide FIG. 10 is a rear view of the periphery of the through hole 42c of the holder 40 in which the light guide portions 52d and 53d and the extension portion 52g of the lens body 50A2 are inserted. (a) A cross-sectional view of FIG. 13(a), and (b) a cross-sectional view of BB of FIG. 13(a). It is a schematic diagram showing the relationship between the light from the light source 32a for low beams, and the 1st light guide part 52d (52g of extension parts). FIG. 10 is a rear view of the periphery of a through hole 42c (modification) of the holder 40 in which the light guide portions 52d and 53d and the extension portion 52g of the light guide lens body 50 are inserted.

A vehicle lamp 10 according to an embodiment of the present invention will be described below with reference to the accompanying drawings. The same reference numerals are given to corresponding components in each figure, and duplicate descriptions are omitted.

FIG. 1 is a perspective view of a vehicle lamp 10. FIG. 2(a) is a top view of the vehicle lamp 10, FIG. 2(b) is a front view, and FIG. 2(c) is a side view.

The vehicle lamp 10 shown in FIGS. 1 and 2 has a low beam light distribution pattern P _Lo (see FIG. 9A), or a low beam light distribution pattern P _Lo and an ADB (Adaptive Driving Beam) light distribution pattern P. It is a vehicle headlamp capable of forming a synthetic light distribution pattern (see FIG. 9(c)) including _ADB , and is mounted on the left and right sides of the front end of a vehicle (not shown). The low-beam light distribution pattern P _Lo and the ADB light distribution pattern P _ADB are formed on a virtual vertical screen facing the front of the vehicle (located about 25 m ahead of the front of the vehicle). For convenience of explanation, the XYZ axes are defined below. The X-axis extends in the vehicle front-rear direction, the Y-axis extends in the vehicle width direction, and the Z-axis extends in the vertical direction.

FIG. 3 is a cross-sectional view of the vehicle lamp 10 shown in FIG. 1 cut along a horizontal plane including the reference axis AX (a plane including the X-axis and the Y-axis). FIG. 4 is a cross-sectional view of the vehicle lamp 10 shown in FIG. 1 cut along a vertical plane including the reference axis AX (a plane including the X-axis and the Z-axis). FIG. 5 is an exploded perspective view of the vehicle lamp 10. FIG.

As shown in FIGS. 3 to 5, the vehicle lamp 10 of this embodiment includes a heat sink 20, a light source module 30, a holder 40, a light guide lens body 50 (also referred to as a light guide lens or separator), a primary lens 60, a retainer. 70, a secondary lens 80, and the like. Although not shown, the vehicle lamp 10 is arranged in a lamp chamber composed of an outer lens and a housing, and is attached to the housing or the like.

As shown in FIG. 5, the heat sink 20 is made of die-cast aluminum and includes a base 22 including a front surface 22a and an opposite rear surface 22b.

The front surface 22a includes a light source module mounting surface 22a1 and a peripheral surface 22a2 surrounding the light source module mounting surface 22a1.

The light source module mounting surface 22a1 and the surrounding surface 22a2 are, for example, planes parallel to a plane including the Y-axis and the Z-axis.

The light source module mounting surface 22a1 is provided with screw holes 22a5 (three locations in FIG. 5) for fixing the light source module 30 by screws. Positioning pins 22a6 (two positions in FIG. 5) are provided on the light source module mounting surface 22a1 to position the light source module 30. As shown in FIG.

The peripheral surface 22a2 includes a holder contact surface 22a3 with which the holder 40 contacts, and a retainer contact surface 22a4 with which the retainer 70 contacts.

The retainer contact surfaces 22a4 are provided on both left and right sides of the peripheral surface 22a2.

The thickness (thickness in the X-axis direction) between the retainer contact surface 22a4 and the rear surface 22b is thicker than the thickness (thickness in the X-axis direction) between the holder contact surface 22a3 and the rear surface 22b, and constitutes a stepped portion. ing.

The base 22 is provided with screw holes 22c (two places in FIG. 3) into which the screws N1 are inserted. The screw hole 22c penetrates the retainer contact surface 22a4 and the rear surface 22b.

First extension portions 24 extending rearward (in the X-axis direction) from the left and right sides of the base 22 are provided on the left and right sides of the base 22 , respectively. A second extension 26 extending laterally (in the Y-axis direction) is provided at the tip of the first extension 24 .

Radiation fins 28 are provided on the rear surface 22 b of the base 22 .

The light source module 30 includes a plurality of low beam light sources 32a and a plurality of ADB light sources 32b, and a substrate 34 on which the plurality of low beam light sources 32a, the plurality of ADB light sources 32b and a connector 34c are mounted.

FIG. 8C is a front view (perspective view) of the plurality of low-beam light sources 32a and the plurality of ADB light sources 32b seen through the light guiding lens body 50. FIG.

As shown in FIG. 8C, the plurality of low-beam light sources 32a are mounted on the substrate 34 so as to be arranged in the upper row and in the Y-axis direction. A plurality of ADB light sources 32b are mounted on the substrate 34 in a form arranged in the lower stage and in the Y-axis direction.

Each of the light sources 32a and 32b is, for example, a semiconductor light emitting element such as an LED or LD having a rectangular (for example, 1 mm square) light emitting surface. is implemented in A plurality of rectangles in FIG. 8(c) represent the light emitting surfaces of the respective light sources 32a and 32b.

The substrate 34 is provided with through holes 34a (two places in FIG. 5) into which the positioning pins 22a6 of the heat sink 20 are inserted, and notches S1 (three places in FIG. 5) into which the screws N2 are inserted.

The light source module 30 configured as described above can be obtained by screwing the screw N2 inserted into the notch S1 into the screw hole 22a5 of the heat sink 20 while the positioning pin 22a6 of the heat sink 20 is inserted into the through hole 34a of the substrate 34. It is fixed to the heat sink 20 (light source module mounting surface 22a1).

As shown in FIGS. 3 to 5, the holder 40 includes a cup-shaped holder body 42 made of synthetic resin such as acrylic or polycarbonate, which is open on the front side and closed on the rear side.

The front surface 42a of the holder body 42 is arranged so that the rear surface of the light guide lens body 50 (the rear surface 52b of the upper light guide lens body 52 and the rear surface 53b of the lower light guide lens body 53) are in surface contact with each other. The rear surface is configured as an inverted surface (spherical surface concave toward the rear).

The holder main body 42 is provided with a through hole 42c into which the first light guide portion 52d and the second light guide portion 53d of the light guide lens body 50 are inserted.

The holder main body 42 is provided with a cylindrical portion 44 extending rearward (in the X-axis direction) from the outer peripheral portion of the holder main body 42 . A flange portion 46 that contacts the holder contact surface 22 a 3 of the heat sink 20 is provided at the tip of the cylindrical portion 44 .

Note that the holder main body 42 (and the cylindrical portion 44) is provided with a notch portion S4.

A convex portion 48 and a convex portion 49 are provided on the front opening end face 40 a of the holder 40 .

FIG. 6 is a perspective view of a structure in which the heat sink 20, the light source module 30, the holder 40 and the light guiding lens body 50 are combined.

FIG. 7 is a perspective view of the light guiding lens body 50. FIG.

As shown in FIG. 7, the light guiding lens body 50 is a cup-shaped member made of silicon resin, the front side of which is open and the rear side of which is closed. The light guide lens body 50 includes an upper light guide lens body 52 and a lower light guide lens body 53 .

As shown in FIG. 4, the upper light guiding lens body 52 is arranged above the reference axis AX, and the lower light guiding lens body 53 is arranged below the reference axis AX. The reference axis AX extends in the X-axis direction.

The front surface 52a of the upper light guiding lens body 52 is positioned above the rear surface 60b of the primary lens 60 so that the upper half of the rear surface 60b of the primary lens 60 (the spherical surface convex toward the rear) is in surface contact with the reference axis AX. It is configured as a half-inverted surface (spherical surface concave toward the rear).

The rear surface 52b (see FIGS. 3 and 4) of the upper light guide lens body 52 is in surface contact with the front surface 42a (spherical surface concave toward the front) of the holder 40 (holder body 42) above the reference axis AX. , the upper half of the front surface 42a of the holder 40 (holder main body 42) is configured as an inverted surface (spherical surface convex toward the rear).

As shown in FIG. 8A, the lower edge of the front surface 52a of the upper light guiding lens body 52 has a stepped edge portion 52a1 having a shape corresponding to the cutoff line CL _Lo (CL1 to CL3) and a stepped edge portion It includes extended edges 52a2, 52a3 located on either side of 52a1. Note that the extended edge portion may be provided only on one side.

The stepped edge portion 52a1 includes a side e1 corresponding to the left horizontal cutoff line CL1, a side e2 corresponding to the right horizontal cutoff line CL2, and an oblique cutoff line CL3 connecting the left horizontal cutoff line CL1 and the right horizontal cutoff line CL2. includes edge e3 corresponding to .

The extended edge portion 52a2 is arranged at the same position as the side e1 in the Z-axis direction. The extension edge portion 52a3 is arranged at the same position as the side e2 in the Z-axis direction.

The lower end surface 52c (see FIG. 4) of the upper light guide lens body 52 extends horizontally (X-axis direction) from the lower edge of the front surface 52a of the upper light guide lens body 52 toward the rear surface 52b of the upper light guide lens body 52. It is an extended surface.

As shown in FIGS. 3 and 4, the rear surface 52b of the upper light guide lens body 52 is provided with a first light guide portion 52d for guiding light from the light source module 30 (plural low beam light sources 32a). be provided. The first light guide portion 52d has its base end portion provided in a partial region including the stepped edge portion 52a1 of the rear surface 52b of the upper light guide lens main body 52, and the light source module 30 (the plurality of low beam light sources 32a). ). The partial region including the stepped edge portion 52a1 is a region of the rear surface 52b of the upper light guiding lens body 52 facing the light source module 30 (the light emitting surfaces of the plurality of low beam light sources 32a). The first light guide portion 52 d is inserted into the through hole 42 c of the holder 40 .

A first light incident surface 52e is provided at the tip of the first light guide portion 52d. The first light incident surface 52e is, for example, a plane parallel to a plane including the Y-axis and Z-axis.

The first light incident surface 52e is arranged at a position facing the light source module 30 (the light emitting surfaces of the plurality of low beam light sources 32a) in a state where the first light guide portion 52d is inserted into the through hole 42c of the holder 40. (See Figure 4). The distance between the first light incident surface 52e and the light source module 30 (the light emitting surfaces of the plurality of low beam light sources 32a) is, for example, 0.2 mm.

As shown in FIGS. 5 and 7 , a flange portion 52 f is provided on the front opening end surface of the upper light guide lens body 52 . The flange portion 52f has a through hole 52f1 (one place in FIGS. 5 and 7) into which the projection 48 of the holder 40 is inserted, and a through hole 52f2 (FIGS. 5 and 7) into which the projection 49 of the holder 40 is inserted. middle, two places) are provided.

The front surface 53a of the lower light guide lens main body 53 is positioned below the rear surface 60b of the primary lens 60 so that the lower half of the rear surface 60b of the primary lens 60 (spherical surface convex toward the rear) below the reference axis AX is in surface contact with the rear surface 60b of the primary lens 60. It is configured as a half-inverted surface (spherical surface concave toward the rear).

The rear surface 53b (see FIGS. 3 and 4) of the lower light guide lens body 53 is in surface contact with the front surface 42a (spherical surface concave toward the front) of the holder 40 (holder body 42) at the lower half from the reference axis AX. , the lower half of the front surface 42a of the holder 40 (holder main body 42) is configured as an inverted surface (spherical surface convex toward the rear).

As shown in FIG. 8(b), the upper edge of the front surface 53a of the lower light guide lens body 53 includes a stepped edge portion 53a1 (sides e1′ to e3′) having a shape inverted from the stepped edge portion 52a1, and It includes extended edge portions 53a2 and 53a3 arranged on both sides of the stepped edge portion 53a1. Note that the extended edge portion may be provided only on one side.

The extended edge portion 53a2 is arranged at the same position as the side e1' in the Z-axis direction. The extended edge portion 53a3 is arranged at the same position as the side e2' in the Z-axis direction.

The upper end surface 53c (see FIG. 4) of the lower light guide lens body 53 extends horizontally (X-axis direction) from the upper edge of the front surface 53a of the lower light guide lens body 53 toward the rear surface 53b of the lower light guide lens body 53. It is an extended surface.

As shown in FIGS. 3 and 4, the rear surface 53b of the lower light guide lens body 53 is provided with a second light guide portion 53d for guiding light from the light source module 30 (the plurality of ADB light sources 32b). be provided. The second light guide portion 53d has its base end portion provided in a partial region including the stepped edge portion 53a1 of the rear surface 53b of the lower light guide lens body 53, and the light source module 30 (the plurality of ADB light sources 32b). ). The partial region including the stepped edge portion 53a1 is a region of the rear surface 53b of the lower light guide lens body 53 facing the light source module 30 (the light emitting surfaces of the plurality of ADB light sources 32b). The second light guide portion 53 d is inserted into the through hole 42 c of the holder 40 .

A second light incident surface 53e is provided at the tip of the second light guide portion 53d. In the second light incident surface 53e, a plurality of areas (for example, a plurality of areas A1 to A4 that are individually turned on and off) forming the ADB light distribution pattern are circular as shown in FIG. 9(b), and is adjusted to be formed in a divided state by a vertical edge (for example, a groove portion 53e2).

9B and 9D show ADB light distribution patterns formed when there are four ADB light sources 32b. A hatched area in FIGS. 9B and 9D indicates that the ADB light source 32b corresponding to the area is turned off.

The second light incident surface 53e includes a plurality of light incident surfaces 53e1 (see FIGS. 12(a) and 13(a)) into which the light from each of the multiple ADB light sources 32b enters. Each light entrance surface 53e1 is configured so that light from each ADB light source 32b entering the second light guide portion 53d is not mixed. For example, each light incident surface 53e1 is configured by partitioning the second light incident surface 53e with a plurality of grooves 53e2 extending in the X-axis direction. Each groove portion 53e2 constitutes a total reflection surface that totally reflects the light from each ADB light source 32b that has entered the second light guide portion 53d.

The second light incident surface 53e is arranged at a position facing the light source module 30 (the light emitting surfaces of the plurality of ADB light sources 32b) while the second light guide portion 53d is inserted into the through hole 42c of the holder 40. (See Figure 4). The distance between the second light incident surface 53e and the light source module 30 (the light emitting surfaces of the plurality of ADB light sources 32b) is, for example, 0.2 mm.

As shown in FIGS. 5 and 7 , a flange portion 53 f is provided on the front opening end surface of the lower light guiding lens body 53 . The flange portion 53f is provided with through holes 53f1 (two places in FIGS. 5 and 7) into which the protrusions 48 of the holder 40 are inserted.

Note that the lower light guiding lens body 53 is provided with a notch portion S5 so that the connector 34c of the light source module 30 does not abut (interfere) with the lower light guiding lens body 53. FIG.

As shown in FIG. 8(c), the upper light guiding lens body 52 and the lower light guiding lens body 53 are arranged such that the lower edge of the front surface 52a of the upper light guiding lens body 52 and the upper edge of the front surface 53a of the lower light guiding lens body 53 are in line contact with each other, and the lower end surface 52c of the upper light guide lens body 52 and the upper end surface 53c of the lower light guide lens body 53 are in surface contact with each other to form the light guide lens body 50 .

In the light guide lens body 50 configured as described above, the first light guide portion 52d of the upper light guide lens body 52 and the second light guide portion 53d of the lower light guide lens body 53 are inserted (for example, press-fit) into the through holes 42c of the holder 40. or fitted), the first light incident surface 52e of the upper light guide lens body 52 (first light guide portion 52d) and the light source module 30 (the light emitting surfaces of the plurality of low beam light sources 32a) face each other, and the lower light guide The second light incident surface 53e of the lens body 53 (second light guide portion 53d) faces the light source module 30 (light emitting surfaces of the plurality of ADB light sources 32b) (see FIGS. 3 and 4), and the light is guided. A state in which the rear surface of the lens body 50 (the rear surface 52b of the upper light guide lens body 52 and the rear surface 53b of the lower light guide lens body 53) is in surface contact with the front surface 42a of the holder 40 (holder body 42) (see FIGS. 3 and 4). is placed in

At that time, the convex portion 48 of the holder 40 is inserted into the through hole 52f1 of the upper light guide lens body 52 and the through hole 53f1 of the lower light guide lens body 53 (see FIG. 6). Furthermore, the convex portion 49 of the holder 40 is inserted into the through hole 52f2 of the upper light guiding lens body 52 (see FIG. 6).

As shown in FIG. 5, primary lens 60 is a spherical lens that includes an anterior surface 60a and an opposite posterior surface 60b. The front surface 60a is a spherical surface convex forward, and the rear surface 60b is a spherical surface convex rearward. A flange portion 62 is provided on the primary lens 60 . The flange portion 62 extends so as to surround the reference axis AX between the front surface 60a and the rear surface 60b.

As shown in FIG. 5, the retainer 70 includes a retainer main body 72 which is made of a synthetic resin such as acrylic or polycarbonate, and which is a cylindrical retainer body 72 that widens in the shape of a cone from the front open end surface toward the rear open end surface.

As shown in FIG. 5, the secondary lens 80 is made of synthetic resin such as acrylic or polycarbonate and includes a lens body 82 .

Lens body 82 includes a front surface 82a and an opposite rear surface 82b (see FIGS. 3 and 4). The front surface 82a is a plane parallel to the plane containing the Y-axis and the Z-axis, and the rear surface 82b is a spherical surface convex rearward.

A tubular portion 84 extending rearward (in the X-axis direction) from the outer peripheral portion of the lens body 82 is provided on the outer peripheral portion of the lens body 82 .

The primary lens 60 and the secondary lens 80 have focal points F (see FIG. 8C) at the lower edge (stepped edge portion 52 a 1 ) of the front surface 52 a of the upper light guide lens body 52 and the front surface 53 a of the lower light guide lens body 53 . A projection lens positioned near the upper edge (stepped edge portion 53a1) is configured. The curvature of field (rear focal plane) of this projection lens consists of the lower edge (stepped edge portion 52a1) of the front surface 52a of the upper light guide lens body 52 and the upper edge (stepped edge) of the front surface 53a of the lower light guide lens body 53. It substantially matches the portion 53a1).

As the primary lens 60 and the secondary lens 80 that constitute the projection lens, for example, a spherical lens and a plano-convex lens described in JP-A-2015-79660 can be used.

The secondary lens 80 having the above configuration is arranged with the lens main body 82 arranged in front of the primary lens 60 and with the pressing portion/screw receiving portion 86 in contact with the flange portion 76 of the retainer 70 (FIGS. 3 and 4). See Figure 4).

In the vehicle lamp 10 configured as described above, when the plurality of low-beam light sources 32a are turned on, the light from the plurality of low-beam light sources 32a enters the first light guide portion 52d of the upper light guide lens body 52. Light enters from the surface 52 e , is guided through the first light guide portion 52 d , and exits from the front surface 52 a of the upper light guide lens body 52 . As a result, a light intensity distribution corresponding to the low-beam light distribution pattern is formed on the front surface 52 a of the upper light guiding lens body 52 . This luminous intensity distribution includes sides e1 to e3 (see FIG. 8(a)) corresponding to cutoff lines CL _Lo (CL1 to CL3). A projection lens composed of the primary lens 60 and the secondary lens 80 reversely projects this light intensity distribution forward. As a result, as shown in FIG. 9A, a low-beam light distribution pattern P _Lo including cutoff lines CL (CL1 to CL3) at the upper edge is formed.

When the plurality of ADB light sources 32b are turned on, the light from the plurality of ADB light sources 32b enters from the second light entrance surface 53e of the second light guide portion 53d of the lower light guide lens body 53, and enters the second light guide portion 53d. The light is guided through the portion 53 d and emitted from the front surface 53 a of the lower light guide lens body 53 . As a result, a luminous intensity distribution corresponding to the ADB light distribution pattern is formed on the front surface 53 a of the lower light guiding lens body 53 . This luminous intensity distribution includes sides e1′ to e3′ (see FIG. 8(b)) corresponding to cutoff lines CL _ADB (CL1′ to CL3′). A projection lens composed of the primary lens 60 and the secondary lens 80 reversely projects this light intensity distribution forward. As a result, as shown in FIG. 9B, an ADB light distribution pattern P _ADB including cutoff lines CL _ADB (CL1′ to CL3′) is formed at the lower edge. FIG. 9B shows the _ADB light distribution pattern PADB formed when the number of the plurality of ADB light sources 32b is four. A hatched area in FIG. 9B indicates that the ADB light source 32b corresponding to the area is turned off.

When the plurality of low beam light sources 32a and the plurality of ADB light sources 32b are turned on, a combined light distribution pattern including the low beam light distribution pattern P _Lo and the ADB light distribution pattern P _ADB is formed as shown in FIG. 9(c). be done.

Next, an example of a light guide lens holding structure 90 that holds the light guide lens body 50A will be described as a second embodiment.

FIG. 10 is an exploded perspective view of the light guide lens body 50A and the holder 40A that constitute the light guide lens holding structure 90. FIG.

As shown in FIG. 10, the light guiding lens holding structure 90 of the present embodiment is different from the light guiding lens holding structure (the light guiding lens holding structure holding the light guiding lens body 50) of the first embodiment. The difference is that a light guiding lens body 50A is used instead of the lens body 50 and a holder 40A is used instead of the holder 40. FIG. Other than that, the configuration is the same as that of the first embodiment. In the following, differences from the first embodiment will be mainly described, and the same reference numerals will be assigned to the same configurations, and the description thereof will be omitted as appropriate.

The light guide lens holding structure 90 of this embodiment includes a light guide lens body 50A and a holder 40A.

FIG. 11(a) is a rear view of the light guiding lens body 50A, and FIG. 11(b) is a rear view of the holder 40A. FIG. 12(a) shows an example (rear view) of the light guide portions 52d and 53d of the light guide lens body 50A1 of the first specification, FIG. 12(b) shows the light guide portion 52d of the light guide lens body 50A2 of the second specification, An example (rear view) of 53d, and FIG. 12(c) is a rear view around the through hole 42c of the holder 40A.

FIG. 13(a) is a rear view around the through hole 42c of the holder 40 in which the light guide portions 52d and 53d and the extension portion 52g of the light guide lens body 50A1 of the first specification are inserted, and FIG. FIG. 11 is a rear view of the periphery of the through hole 42c of the holder 40 in which the light guide portions 52d and 53d and the extension portion 52g of the light guide lens body 50A2 of the second specification are inserted.

14(a) is a sectional view taken along line AA of FIG. 13(a), and FIG. 14(b) is a sectional view taken along line BB of FIG. 13(a).

As shown in FIGS. 11A, 12A, and 14A, the rear surface of the light guide lens body 50A (the rear surface 52b of the upper light guide lens body 52) receives light from the low beam light source 32a. It includes a first light guiding portion 52d for receiving light and extension portions 52g extending from both sides of the first light guiding portion 52d. In FIG. 12(a), the range indicated by symbol B1 is the first light guide portion 52d. Further, the range indicated by symbols B2 and B3 is the extended portion 52g.

The first light guide portion 52d directs the light from the low beam light source 32a entering the first light guide portion 52d to the front surface of the light guide lens body 50 (the front surface 52a of the upper light guide lens body 52) for low beam distribution. It is configured to form a light intensity distribution corresponding to the pattern. Specifically, as shown in FIG. 14A, the first light guiding portion 52d extends from the lower portion of the upper light guiding lens body 52 (rear surface 52b) toward the low beam light source 32a, and has a low beam light source at its tip. 32a have opposing first light incident surfaces 52e. The first light incident surface 52e is a surface on which the light from the low-beam light source 32a enters the lens body 50A (the first light guide portion 52d). is.

The extension 52g is a so-called transitional portion that is not intended for optical functions. As shown in FIG. 15, the extended portion 52g is provided in a range where the light within the half-value angle θ (direct light) of the light from the low-beam light source 32a does not pass. As shown in FIG. 13 and the like, the extension portions 52g extend in the Y-axis direction from both sides of the first light guide portion 52d in the Y-axis direction via the stepped portions 52h. FIG. 15 is a schematic diagram showing the relationship between the light from the low-beam light source 32a and the first light guide portion 52d (extension portion 52g).

In addition, the rear surface of the light guide lens body 50A (the rear surface 53b of the lower light guide lens body 53) includes a second light guide portion 53d for ADB arranged below the first light guide portion 52d.

The second light guide portion 53d directs the light from the ADB light source 32b entering the second light guide portion 53d to the front surface of the light guide lens body 50A (the front surface 53a of the lower light guide lens body 53) for ADB distribution. It is configured to form a light intensity distribution corresponding to the pattern. Specifically, as shown in FIG. 14A, the second light guide portion 53d extends from the upper portion of the lower light guide lens body 53 (rear surface 53b) toward the ADB light source 32b, and has an ADB light source at its tip. 32b has an opposing second light incident surface 53e. The second light incident surface 53e is a surface on which light from the ADB light source 32b enters the light guide lens body 50A (second light guide portion 53d), and is parallel to a plane including the Y axis and the Z axis, for example. is a flat surface.

In the light guide lens body 50A, the specifications (shape, size, etc.) of the light guide portions (at least one of the first light guide portion 52d and the second light guide portion 53d) are different from each other, and the specifications ( It is a light guiding lens body selected from a plurality of light guiding lens bodies having the same shape, size, etc.).

The plurality of light guide lens bodies in which the specifications of the light guide portions 52d and 53d are different from each other and the specifications of the extension portion 52g are the same are, for example, the light guide lens bodies of the first specification shown in FIG. 12(a). 50A1 and a light guide lens body 50A2 of the second specification shown in FIG. 12(b).

The light guide lens body 50A1 of the first specification and the light guide lens body 50A2 of the second specification differ from each other in the specifications of the light guide portions 52d and 53d in that the stepped edge portion 52a1 is horizontally reversed. On the other hand, the specifications (shape, size, etc.) of the extension portions 52g are the same.

As shown in FIGS. 12C and 14, the holder 40A is formed with a through hole 42c into which the light guide portions 52d and 53d and the extension portion 52g of the light guide lens body 50A are inserted. The through hole 42c is a through hole penetrating the front surface 42a and the rear surface 42b of the holder main body 42 .

The through hole 42c accommodates a plurality of light guide lens bodies (for example, the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the first specification). Even when any one of the light guide lens bodies 50A is selected from the two specifications of the light guide lens body 50A2), the light guide portions 52d and 53d and the extension portion 52g of the selected light guide lens body 50A are formed into the through holes. It is shaped (and sized) to be inserted into 42c.

As shown in FIG. 13, the inner wall of the through hole 42c includes positioning holding portions 42c1 to 42c4 that hold the light guiding lens body 50A in a state of being positioned with respect to the holder 40. As shown in FIG. The positioning and holding portions 42c1 to 42c4 contact the extended portion 52g of the light guiding lens body 50A inserted into the through hole 42c to hold the lens body 50A on the holder 40 in the vertical and horizontal directions (Z-axis direction and Y-axis direction). Hold it in position. Specifically, the positioning holding portions 42c1 to 42c4 hold the light guide lens body 50A in a state in which the light guide portions 52d, 53d and the inner wall of the through hole 42c are partially separated. That is, the light guiding lens body 50A is positioned with respect to the holder 40 in a state in which the light guiding portions 52d and 53d are not in contact with the inner wall of the through hole 42c. As shown in FIG. 16, the positioning holding portions 42c1 to 42c4 may hold the light guiding lens body 50A in a state in which the light guiding portions 52d and 53d and the inner wall of the through hole 42c are all separated from each other. FIG. 16 is a rear view around the through hole 42c (modification) of the holder 40 in which the light guide portions 52d and 53d and the extension portion 52g of the light guide lens body 50 are inserted.

The positioning and holding portions 42c1 to 42c4 are, for example, rib portions (hereinafter referred to as rib portions 42c1 and 42c2, see FIGS. 13 and 14B) provided on the upper and lower surfaces of the inner wall of the through hole 42c, and a through hole 42c. These are both end faces in the Y-axis direction of the inner wall of the hole 42c (hereinafter referred to as both end faces 42c3 and 42c4; see FIG. 13).

Next, an example of a procedure for holding the light guiding lens body 50A having the above configuration with the holder 40A will be briefly described.

The operator uses a plurality of light guide lens bodies (for example, the light guide lens body 50A1 of the first specification and the light guide lens body 50A1 of the second specification) in which the specifications of the light guide portions 52d and 53d are different from each other and the specifications of the extension portion 52g are the same. A specific light guide lens body 50A is selected from the light guide lens bodies 50A2), and the light guide portions 52d and 53d of the selected light guide lens body 50A are inserted into the through holes 42c of the holder 40. FIG.

At this time, the light guiding lens body 50A is positioned with respect to the holder 40 in the vertical and horizontal directions (Z-axis direction and Y-axis direction) by abutting the positioning holding portions 42c1 to 42c4 on the extension portion 52g of the light guiding lens body 50A. be done.

Specifically, in the light guiding lens body 50A, the rib portions 42c1 and 42c2 provided on the inner wall of the through hole 42c abut on the upper and lower surfaces of the extension portion 52g of the lens body 50A (see FIGS. 13 and 14B). ), it is positioned with respect to the holder 40A in the vertical direction (Z-axis direction).

In the light guiding lens body 50A, both end surfaces 42c3 and 42c4 of the inner wall of the through hole 42c in the Y-axis direction are brought into contact with both end surfaces 52i and 52j of the extension portion 52g in the Y-axis direction (see FIG. 13). It is positioned with respect to the holder 40A in the left-right direction (Y-axis direction).

Further, the light guide lens body 50A is positioned with respect to the holder 40A in the X-axis direction by abutting a part of the light guide lens body 50A on the holder 40A. For example, although not shown, the light guiding lens body 50A has ribs (for example, , 3 points) are brought into contact with the front surface of the holder 40A, so that they are positioned with respect to the X-axis direction with respect to the holder 40A. In addition, the light guide lens body 50A has a rear surface (partially or wholly) of the light guide lens body 50A that is in surface contact with the front surface of the holder 40A (the front surface 42a of the holder main body 42), so that the light guide lens body 50A is positioned relative to the holder 40A in the X-axis direction. in some cases (for example, if the rib portion is omitted).

As described above, the light guiding lens body 50A is held while being positioned with respect to the holder 40A.

As described above, according to the present embodiment, it is possible to provide the light guide lens holding structure 90 that can hold the light guide lens body 50A in a state where it is positioned with respect to the holder 40 .

This is because the holder 40 is formed with a through hole 42c into which the light guide portions 52d and 53d and the extension portion 52g are inserted and arranged, and the inner wall of the through hole 42c is formed so that the light guide lens body 50A is inserted into the holder 40. This is due to including the positioning holding portions 42c1 to 42c4 that hold in a state of being positioned with respect to.

Further, according to the present embodiment, the light guide lens body is selected from among a plurality of light guide lens bodies in which the specifications of the light guide portions 52d and 53d are different from each other and the specifications of the extension portion 52g are the same. Even so, the selected light guiding lens body 50A can be held in a state of being positioned with respect to the holder 40 .

This is because the positioning holding portions 42c1 to 42c4 hold the light guide lens body 50A in a state where the light guide portions 52d, 53d and the inner wall of the through hole 42c are partly or wholly separated from each other.

Further, according to this embodiment, it is possible to provide the light guide lens holding structure 90 including the holder 40A formed with the through hole 42c into which the light guide portions 52d and 53d and the extension portion 52g are inserted. .

Further, according to the present embodiment, the light guiding lens body 50A (flange portions 52f and 53f) can be held between the holder 40A (front surface) and another member (for example, the flange portion 62 of the primary lens 60). can.

Further, according to the present embodiment, since the extension portion 52g extends through the stepped portion 52h, compared to the case where the stepped portion 52h is not provided, the light guide portions 52d and 53d have different specifications. It is possible to easily unify the specifications of the extension portions of the respective optical lens bodies.

In addition, according to the present embodiment, since the rib portions 42c1 and 42c2 abut on the extension portion 52g, the positioning accuracy of the light guiding lens body 50A with respect to the holder 40A can be improved as compared with the case where the rib portions 42c1 and 42c2 are not provided. can be done.

Incidentally, as shown in FIG. 14B, the positioning holding portions 42c1 to 42c4 (ribs 42c1, 42c2, etc.) are positioned at the rear end portion ( That is, it is desirable that the light guiding lens body is held in a state of being positioned with respect to the holder by contacting the portion near the low-beam light source 32 (and not contacting the portion forward of the rear end portion). .

In this way, compared to the case where the positioning holding portions 42c1 to 42c4 (rib portions 42c1, 42c2, etc.) abut from the front end to the rear end of the extension portion 52g of the light guide lens body 50A, the through hole of the extension portion 52g is reduced. 42c (positioning of the light guiding lens body 50A with respect to the holder 40A) becomes easier.

Further, according to the present embodiment, it is possible to provide a vehicle lamp having the light guide lens holding structure 90 capable of holding the light guide lens body 50A in a positioned state with respect to the holder 40A.

Further, according to the present embodiment, it is possible to provide a vehicle lamp having the light guide lens holding structure 90 suitable for a low beam light distribution pattern.

This is because the extension portion 52g extends from the first light guide portion 52d.

Further, according to the present embodiment, it is possible to form an ADB light distribution pattern in addition to the low beam light distribution pattern.

Further, according to the present embodiment, the specifications of the holder 40A can be unified (that is, there is no need to prepare a plurality of holders with different specifications of the through hole 42c), and the light guide portion 52d, When any one of the light guide lens bodies 50A is selected from a plurality of light guide lens bodies having different specifications (shape, size, etc.) of 53d, the selected light guide lens body 50A is attached to the holder 40A. can be held in a positioned state.

The reason why the specifications of the holder 40A can be unified is that the through hole 42c can guide the selected light guide lens body regardless of which light guide lens body is selected from among the plurality of light guide lens bodies. This is because the light portions 52d and 53d and the extension portion 52g are configured to be inserted into the through holes 42c.

Even if one of the light guide lens bodies 50A is selected from a plurality of light guide lens bodies having different specifications of the light guide portions 52d and 53d, the selected light guide lens body 50A is attached to the holder 40A. It is possible to hold the positioned state by providing an extension portion 52g extending from the first light guide portion 52d, and the inner wall of the through hole 42c positions the light guide lens body 50A with respect to the holder 40A. This is due to including the positioning holding portions 42c1 to 42c4 that hold in the state of being held.

Further, according to the present embodiment, the specifications of the holder 40 can be unified, so the cost is reduced compared to the case of preparing a plurality of holders 40 with different shapes of the through holes 42c.

In addition, according to the present embodiment, since the specifications of the holder 40 can be unified, compared to the case where a plurality of holders 40 with different specifications of the through holes 42c are prepared, the holders 40 are not suitable for the light guide lens body 50A. This prevents the occurrence of so-called erroneous assembly in which a holder having a shape that does not correspond to the light guide portions 52d and 53d of the light guide lens body 50A is combined with a holder having a shape that does not correspond to the light guide portions 52d and 53d of the light guide lens body 50A. ).

Next, a modified example will be described.

In the above embodiment, the example using the second light guide portion 53d into which the light from the ADB light source 32b enters has been described, but the present invention is not limited to this. For example, although not shown, a third light guide section into which light from the high-beam light source enters may be used instead of the second light guide section 53d.

In the third light guide portion, the light from the high beam light source that enters the third light guide portion corresponds to the high beam light distribution pattern on the front surface of the light guide lens body 50 (the front surface 53a of the lower light guide lens body 53). It is configured to form a luminous intensity distribution that Specifically, the third light guide portion extends from the upper portion of the lower light guide lens body 53 (rear surface 53b) toward the high beam light source, and has a third light incident surface (not shown) facing the high beam light source at the tip. ). The third light incident surface is a surface on which light from the high beam light source enters the light guide lens body 50A (third light guide portion), and is a plane parallel to a plane including the Y axis and the Z axis, for example. be.

Further, in the above-described embodiment, an example in which the extension portions 52g are extended from both sides of the first light guide portion 52d has been described, but the present invention is not limited to this. For example, the extension part 52g may be extended only from one side of the first light guide part 52d. Further, the extension portion 52g may be extended from both sides or one side of the second light guide portion 53d, or may be extended from both sides or one side of the light guide portions 52d and 53d. That is, the extension portion 52g may be extended from both sides or one side of at least one of the light guide portions 52d and 53d.

Moreover, although the said embodiment demonstrated the example by which the extension part 52g was extended via the level|step-difference part 52h, it does not restrict to this. For example, the extended portion 52g may be extended without passing through the stepped portion 52h. That is, the step portion 52h may be omitted.

Moreover, although the said embodiment demonstrated the example which provided the rib parts 42c1 and 42c2 in the inner wall of the through-hole 42c, it does not restrict to this. For example, the rib portions 42c1 and 42c2 may be provided on the extension portion 52g.

Further, in the above-described embodiment, an example in which the upper light guide lens body 52 and the lower light guide lens body 53 that constitute the light guide lens body 50 are configured as separate parts that are physically separated has been described. Not exclusively. For example, the upper light guide lens main body 52 and the lower light guide lens main body 53 may be configured as one integrally molded component.

Further, in the above embodiment, the light guiding lens body includes the upper light guiding lens body 52, the first light guiding portion 52d, the lower light guiding lens body 53, and the second light guiding portion 53d. Although an example using the body 50A has been described, the present invention is not limited to this. For example, a light guide lens body that includes the upper light guide lens body 52 and the first light guide portion 52d but does not include the lower light guide lens body 53 and the second light guide portion 53d may be used as the light guide lens body. good. That is, the lower light guide lens main body 53 and the second light guide portion 53d may be omitted.

Further, in the above-described embodiment, an example using a projection lens configured by two lenses, the primary lens 60A and the secondary lens 80, has been described as the projection lens, but the present invention is not limited to this. For example, as the projection lens, although not shown, a projection lens composed of one lens may be used, or a projection lens composed of three or more lenses may be used.

All of the numerical values shown in the above embodiments are examples, and it is of course possible to use other appropriate numerical values.

Each above-mentioned embodiment is only a mere illustration in all respects. The present invention is not limitedly interpreted by the description of each of the above embodiments. The invention can be embodied in various other forms without departing from its spirit or essential characteristics.

Reference Signs List 10 Vehicle lamp 20 Heat sink 22 Base 22a Front surface 22a1 Light source module mounting surface 22a2 Surrounding surface 22a3 Holder contact surface 22a4 Retainer contact surface 22a5 Screw hole 22a6 Positioning pin 22b Rear surface 22c Screw hole 24 First extension 26 Second extension 28 Radiation fin 30 Light source module 32a Low beam light source 32b ADB light source 34 Board 34a Through hole 34c Connector 40 Holder 40a Front opening end surface 42 Holder body 42a Front surface 42c Through hole 44 Cylindrical portion 46 Flange 48 Convex portion 49 Convex portion 50, 50A Lens body 52, 52A Upper lens main body 52a, 52Aa Front surface 52a1 Stepped edge portion 52a2 Extended edge portion 52a3 Extended edge portion 52b, 52Ab rear surface 52c lower end surface 52d first light guide portion 52e first light incident surface 52f flange portion 52f1 through hole 52f2 through hole 52h light incident surface 53 lower lens Main body 53a front surface 53a1 stepped edge portion 53a2 extended edge portion 53a3 extended edge portion 53b rear surface 53c upper end surface 53d second light guide portion 53e second light incident surface 53f... Flange portion 53f1... Through hole 53h... Light incident surface 60, 60A... Primary lens 60a... Front surface 60b, 60Ab... Rear surface 60Ab1... Upper light incident surface 60Ab2... Lower light incident surface 62... Flange Part 70... Retainer 72... Retainer main body 76... Flange part 80... Secondary lens 82... Lens main body 82a... Front surface 82b... Rear surface 84... Cylindrical part 86... Holding part/screw receiving part 88 Positioning pin AX Reference axis CL Cutoff line CL1 Left horizontal cutoff line CL2 Right horizontal cutoff line CL3 Cutoff line CL _ADB Cutoff line CL _Lo Cutoff line F Focus N1 , N2... screw, P _ADB ... light distribution pattern for ADB, P _Lo ... light distribution pattern for low beam

Claims (11)

A vehicle lamp comprising a light source, a light guide lens body for receiving light from the light source, and a holder for holding the light guide lens body,
The light guide lens body includes a light guide portion and an extension portion extending from the light guide portion and not intended for an optical function ,
The light source is arranged to face the light guide,
the light guiding lens body includes a front surface and an opposite rear surface;
the rear surface of the light guide lens body includes the light guide portion and the extension portion;
The light guide section is configured such that the light from the light source entering the light guide section forms a light intensity distribution on the front surface of the light guide lens body,
the holder includes a front surface and an opposite rear surface;
the extension portion extends from the light guide portion in a direction orthogonal to the front-rear direction of the light guide lens body;
the light guide portion and the extension portion extend toward the rear surface of the light guide lens body;
The holder is formed with a through hole into which the light guide section and the extension section are inserted and arranged,
the through-hole is a through-hole penetrating through the front surface and the rear surface of the holder;
the inner wall of the through hole includes a positioning holding portion that holds the light guiding lens body in a state of being positioned with respect to the holder;
The positioning and holding portion is a vehicle lamp that holds the light guide lens body in a state of being positioned with respect to the holder by coming into contact with an extension part of the light guide lens body that is inserted and arranged in the through hole. 2. The vehicle lamp according to claim 1, wherein the positioning and holding portion holds the light guide lens body in a state where the light guide portion and the inner wall of the through hole are partially or wholly separated from each other. the light guiding lens body includes a flange provided at the front opening end of the light guiding lens body,
3. The vehicle lamp according to claim 1, wherein a front surface of the holder faces the flange portion. The vehicle lamp according to any one of claims 1 to 3 , wherein the extension portion extends from the light guide portion via a stepped portion. The vehicle lamp according to any one of claims 1 to 4 , wherein the positioning and holding portion is a rib portion. The positioning and holding part holds the light guide lens body in a state of being positioned with respect to the holder by contacting a rear end portion of the extension part of the light guide lens body inserted into the through hole. 6. The vehicle lamp according to any one of 1 to 5 . 7. The vehicle according to any one of claims 1 to 6, further comprising a projection lens that projects the light intensity distribution formed on the front surface of the light guide lens body to form a light distribution pattern corresponding to the light intensity distribution. lighting equipment. The light source includes a low beam light source,
the light guide section includes a first light guide section into which light from the low-beam light source enters;
The first light guide section is configured such that the light from the low beam light source that enters the first light guide section forms a light intensity distribution corresponding to a low beam light distribution pattern on the front surface of the light guide lens body. has been
The extension portion extends from the first light guide portion ,
8. The vehicle lamp according to claim 7 , wherein the extension portion is provided in a range through which direct light from the low beam light source does not pass . the rear surface of the light guide lens body further includes a second light guide portion disposed below the first light guide portion;
The light source includes a light source for ADB,
The second light guide section is configured such that the light from the ADB light source that enters the second light guide section forms a luminous intensity distribution corresponding to the ADB light distribution pattern on the front surface of the light guide lens body. 9. The vehicle lamp according to claim 8 . the rear surface of the light guide lens body further includes a third light guide portion disposed below the first light guide portion;
The light source includes a high beam light source,
The third light guide section is configured such that the light from the high beam light source that enters the third light guide section forms a light intensity distribution corresponding to the high beam light distribution pattern on the front surface of the light guide lens body. 9. The vehicle lamp according to claim 8 . The light guide lens body is a light guide lens body selected from a plurality of light guide lens bodies having different specifications of the light guide portions and having the same specifications of the extension portions,
In the through hole, even when any one of the plurality of light guiding lens bodies is selected, the light guiding portion and extension portion of the selected light guiding lens body are inserted into the through hole. 7. The vehicle lamp according to any one of claims 1 to 6 , wherein the vehicular lamp is configured in a shape that

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