Vehicle lighting

Abstract

The present invention provides a vehicle lighting device that allows for the appropriate positional relationship between two lenses and their corresponding light sources, using a simple configuration. [Solution] The vehicle light fixture 10 comprises a first lens member 13 that emits light from a first light source 21 to form a first light distribution pattern, a second lens member 14 that emits light from a second light source 22 to form a second light distribution pattern, a substrate 24 on which both light sources 12 and 13 are provided, and a first frame member 15 that surrounds the first lens member 13 and the second lens member 14, which are arranged side by side in an orthogonal direction, while allowing light passing through the first lens member 13 and light passing through the second lens member 14 to pass through. The first frame member 15 is attached to the substrate 24 in a state that it sandwiches and supports the first lens member 13 and the second lens member 14 between itself and the substrate 24 in the optical axis direction.

Description

Technical Field

[0001] The present disclosure relates to vehicle lamps.

Background Art

[0002] In vehicle lamps, it is conceivable to irradiate light from a light source through two lenses (see, for example, Patent Document 1). In this vehicle lamp, a substrate on which a light source is mounted is installed in a case, a support member that supports two lenses is attached to the substrate, and a lens holder in which the lenses are pressed against the substrate through the lenses is fitted into the case. Thereby, in this vehicle lamp, the two lenses are in an appropriate positional relationship with respect to the light source.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in order to make the two lenses and the light source have an appropriate positional relationship, the above vehicle lamp fixes both lenses and the substrate using a support member, a lens holder, and a case. Therefore, in the above vehicle lamp, the number of parts for fixing increases, leading to a complication of the assembly process and a greater influence of dimensional variations.

[0005] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a vehicle lamp capable of making two lenses and light sources corresponding thereto have an appropriate positional relationship with a simple configuration.

Means for Solving the Problems

[0006] The vehicle light fixture of the present disclosure comprises: a first lens member that emits light from a first light source to form a first light distribution pattern; a second lens member that emits light from a second light source to form a second light distribution pattern; a substrate on which the first light source and the second light source are provided; and a first frame member that surrounds the first lens member and the second lens member, which are arranged side by side in an orthogonal direction perpendicular to the optical axis, while allowing light passing through the first lens member and light passing through the second lens member to pass through, wherein the first frame member is attached to the substrate in such a state that it sandwiches and supports the first lens member and the second lens member between itself and the substrate in the optical axis direction. [Effects of the Invention]

[0007] According to the vehicle lighting device of this disclosure, two lenses and their corresponding light sources can be positioned in an appropriate relative position with a simple configuration. [Brief explanation of the drawing]

[0008] [Figure 1] This is an explanatory diagram showing a vehicle lighting device according to Embodiment 1 of the present disclosure. [Figure 2] This is an explanatory diagram showing the vehicle lighting fixture of Embodiment 1 disassembled and viewed from the front. [Figure 3] This is an explanatory diagram showing the vehicle lighting fixture of Embodiment 1 disassembled and viewed from the rear. [Figure 4] This is an explanatory diagram showing the first lens component as viewed from the rear in the front-to-back direction. [Figure 5] This is an explanatory diagram showing the first lens component as viewed from the front in the front-to-back direction. [Figure 6] This is an explanatory diagram showing the cross-section obtained along line II shown in Figure 4 and the first light source. [Figure 7] This is an explanatory diagram showing the second lens component as viewed from the rear in the front-to-back direction. [Figure 8] This is an explanatory diagram showing the second lens component as viewed from the front in the front-to-back direction. [Figure 9]It is an explanatory diagram showing a cross section obtained along line II-II shown in FIG. 7 and a second light source. [Figure 10] It is an explanatory diagram showing a state of viewing the first frame member from the rear side in the front-rear direction. [Figure 11] It is an explanatory diagram showing a state of viewing the first frame member from the front side in the front-rear direction. [Figure 12] It is an explanatory diagram showing a state of viewing a substrate (light source unit) and a main body unit (mounting member) positioned by a first substrate-side positioning mechanism and a second substrate-side positioning mechanism from the rear side in the front-rear direction. [Figure 13] It is an explanatory diagram showing a vehicle lamp according to Embodiment 2 of the present disclosure. [Figure 14] It is an explanatory diagram showing a state of viewing the vehicle lamp of Embodiment 2 disassembled from the front side. [Figure 15] It is an explanatory diagram showing a state of viewing the vehicle lamp of Embodiment 2 disassembled from the rear side. [Figure 16] It is an explanatory diagram showing a state of viewing the first lens member of Embodiment 2 from the rear side in the front-rear direction. [Figure 17] It is an explanatory diagram showing a state of viewing the first lens member of Embodiment 2 from the front side in the front-rear direction. [Figure 18] It is an explanatory diagram showing a cross section obtained along line III-III shown in FIG. 16 and a first light source. [Figure 19] It is an explanatory diagram showing a state of viewing the second lens member of Embodiment 2 from the rear side in the front-rear direction. [Figure 20] It is an explanatory diagram showing a state of viewing the second lens member of Embodiment 2 from the front side in the front-rear direction. [Figure 21] It is an explanatory diagram showing a cross section obtained along line IV-IV shown in FIG. 19 and a second light source. [Figure 22] It is an explanatory diagram showing a state of viewing the first frame member of Embodiment 2 from the rear side in the front-rear direction.

Mode for Carrying Out the Invention

[0009] The following describes each embodiment of the vehicle lamp according to the present disclosure while referring to the drawings. In FIG. 3, in order to avoid complication of the drawings, the state where each positioning projection 13b and each positioning projection 14c are fitted into each positioning hole 24a is shown by a dashed line. However, the dashed line is not shown until each projection passes through each positioning through hole 11d. [Embodiment 1]

[0010] The vehicle lamp 10 of Embodiment 1 according to an embodiment of the vehicle lamp according to the present disclosure will be described with reference to FIGS. 1 to 12. The vehicle lamp 10 of Embodiment 1 is used as a headlamp device for a vehicle such as an automobile. This vehicle lamp 10 is provided in a lamp chamber formed by a lamp housing whose open front end is covered with an outer lens on both the left and right sides of the front part of the vehicle. The vehicle lamp 10 is provided in the lamp chamber via a vertical optical axis adjustment mechanism and a horizontal optical axis adjustment mechanism, and appropriately irradiates the front of the vehicle. In the following description, in the vehicle lamp 10, the direction in which the vehicle travels is defined as the front-rear direction (designated as Z in the drawings), the vertical direction when the front-rear direction is along the horizontal plane is defined as the up-down direction (designated as Y in the drawings), and the direction orthogonal to the front-rear direction and the up-down direction (horizontal direction) is defined as the width direction (designated as X in the drawings). Here, since the vehicle lamp 10 has basically the same configuration whether it is provided on the left side or the right side of the vehicle, and is inverted in the width direction (left and right), the vehicle lamp 10 provided on the right side will be used for the following description.

[0011] As shown in Figures 1 to 3, the vehicle lamp 10 of Embodiment 1 is configured as a projector-type lamp unit in which a light source unit 12, a first lens member 13, a second lens member 14, a first frame member 15, a projection lens 16, and a second frame member 17 are attached to a mounting member 11, with the front-to-back direction being the optical axis direction. Therefore, in the vehicle lamp 10, the direction along the plane perpendicular to the front-to-back direction is the orthogonal direction, and this orthogonal direction includes the vertical and width directions. The mounting member 11 is made of an aluminum plate, aluminum die-cast, or resin with high thermal conductivity, and is configured with a plate-shaped main body 11a on which a plurality of heat dissipation fins 11b are provided. This mounting member 11 dissipates the heat generated by the light source unit 12 through the main body 11a and each heat dissipation fin 11b, and functions as a heat dissipation member (heat sink). This mounting member 11 is fixed to the lamp housing via a bracket (not shown). The mounting member 11 may be equipped with a cooling fan unit as appropriate to improve cooling efficiency.

[0012] The main body 11a is provided with three screw holes 11c. Each screw hole 11c is designed to allow a fastening member 18, which will be screwed into a screw hole 15f of the first frame member 15 (described later), to pass through. The main body 11a is also provided with five positioning holes 11d. Each positioning hole 11d is designed to allow positioning projections 13b and 14c, described later, to pass through, preventing the positioning projections 13b and 14c from interfering with the main body 11a.

[0013] Furthermore, the main body portion 11a is provided with two notches 11e. These notches 11e are formed by cutting out the lower edge of the main body portion 11a in the vertical direction and are positioned at intervals in the width direction. As shown in Figure 12, each notch 11e is designed to position a part of the substrate 24 inward when the substrate 24 is positioned by being applied to the main body portion 11a. In other words, each notch 11e allows a part of the substrate 24 to be exposed from the main body portion 11a. In Embodiment 1, when the substrate 24 is positioned, one of the notches 11e is located approximately at the center of the five first light sources 21 (described later) in the width direction, and the other is located approximately at the center of the four second light sources 22 (described later) in the width direction.

[0014] As shown in Figure 2, the light source unit 12 includes five first light sources 21, four second light sources 22, a connector terminal 23, and a substrate 24 on which they are mounted. Each of these light sources (21, 22) is composed of a light-emitting element such as an LED (Light Emitting Diode). The first light sources 21 are located on the outer side (left side when viewing Figure 2 from the front) and lower side of the substrate 24, and are arranged in a row of five at approximately equal intervals from the outside, with the two at the ends positioned higher than the other three. The second light sources 22 are located on the inner side and upper side of the substrate 24, and are arranged in a row of four at approximately equal intervals from the inside.

[0015] The substrate 24 is a plate-shaped substrate made of aluminum. The substrate 24 may also be made of a resin material such as a glass epoxy substrate, or other materials. The substrate 24 is provided with wiring patterns for electrically connecting five first light sources 21, four second light sources 22, and connector terminals 23. The connector terminals 23 are detachably connected to a connection connector that is connected to a lighting control circuit. The substrate 24 receives power from the lighting control circuit via the connector terminals 23 to appropriately light each of the first light sources 21 and each of the second light sources 22.

[0016] The substrate 24 is provided with five positioning holes 24a and two screw holes 24b. Each positioning hole 24a is designed to accommodate the positioning protrusions 13b of the first lens member 13 (described later) and the positioning protrusions 14c of the second lens member 14 (described later). By accommodating the corresponding positioning protrusions 13b and 14c in each positioning hole 24a, the first lens member 13 and the second lens member 14 can be positioned relative to the substrate 24 in both the widthwise and vertical directions. Each screw hole 24b is designed to accommodate the screw protrusions 15a of the first frame member 15 (described later).

[0017] The first lens member 13 is provided in accordance with the five first light sources 21 of the light source unit 12 and is made of transparent resin. This first lens member 13 is an optical lens that guides the light emitted from each first light source 21 inward and works in cooperation with the projection lens 16 to form a first light distribution pattern. As shown in Figures 2 to 6, the first lens member 13 has five first incident portions 31 on the rear side in the front-to-back direction and on the lower side in the up-to-down direction. Each first incident portion 31 corresponds individually to each first light source 21 and has basically the same configuration as the others, but has optical characteristics (surface shape, etc.) according to the light distribution image required for each.

[0018] As shown in Figures 4 to 6, each first incident section 31 has a portion facing the corresponding first light source 21 that protrudes toward the first light source 21, while its center is recessed toward the opposite side of the first light source 21. It has a first opposing incident surface 32, a first inclined incident surface 33, and a first annular reflective surface 34. The first opposing incident surface 32 is curved convexly toward the first light source 21, and the first light source 21 is positioned near the rear (first light source 21) focal point (rear focal point). The first opposing incident surface 32 causes the light emitted from the first light source 21 to enter the first lens member 13 as parallel light traveling approximately parallel to the axis of the first incident section 31, and directs it toward the lower internal reflective surface 35, which will be described later. This parallel light refers to light that has been collimated by passing through the first opposing incident surface 32.

[0019] The first inclined incident surface 33 is provided in a frustoconical shape, protruding from the first opposing incident surface 32 toward the first light source 21. This first inclined incident surface 33 directs light from the first light source 21 that does not travel toward the first opposing incident surface 32 into the first lens member 13. The first annular reflective surface 34 is provided in a frustoconical shape, surrounding the first inclined incident surface 33, and is positioned where light incident from the first inclined incident surface 33 into the first lens member 13 travels. The first annular reflective surface 34 reflects light incident from the first inclined incident surface 33 and directs it toward the lower internal reflective surface 35, which will be described later, as parallel light traveling approximately parallel to the axis of the first incident portion 31. The first annular reflective surface 34 may reflect light using total internal reflection, or it may reflect light by attaching aluminum, silver, etc., by vapor deposition or painting.

[0020] The lower internal reflective surface 35 is provided on the front side in the front-rear direction of each first incident section 31. This lower internal reflective surface 35 reflects the light incident from each first incident section 31 toward the upper internal reflective surface 36 of the first lens member 13. This lower internal reflective surface 35 is composed of multiple free-form surfaces based on a parabolic surface with a focal point near the cutoff edge 36a of the upper internal reflective surface 36. By reflecting the light incident from the first incident section 31, the lower internal reflective surface 35 causes the light to propagate toward the cutoff edge 36a. The lower internal reflective surface 35 may utilize total internal reflection, undergo reflection processing, or have other configurations, as long as it reflects as described above. Furthermore, the lower internal reflective surface 35 may be a single surface and is not limited to the configuration of Embodiment 1.

[0021] The upper internal reflective surface 36 is located above the lower internal reflective surface 35 in the vertical direction. This upper internal reflective surface 36 reflects the light reflected by the lower internal reflective surface 35 toward the first emission portion 37 of the first lens member 13. The lower edge of this upper internal reflective surface 36 is designated as a cutoff edge 36a. This cutoff edge 36a forms a cutoff line and has a shape in which horizontal edges of different heights are joined together by an inclined edge. This cutoff edge 36a is located near the focal point (rear focal point) of the low lens portion 61, which will be described later. Since this upper internal reflective surface 36 does not reflect light that has been reflected by the lower internal reflective surface 35 and has traveled below the cutoff edge 36a toward the first emission portion 37, the shape of the cutoff edge 36a can be reflected in the light reflected toward the first emission portion 37. Furthermore, even when the vehicle light fixture 10 is installed on the left side of the vehicle, the relationship between the direction of inclination and height at the cutoff edge 36a of the upper internal reflective surface 36 is not reversed in the width direction. That is, although the vehicle light fixture 10 is reversed in the width direction on the right and left sides of the vehicle, the inclination of the cutoff edge 36a of the upper internal reflective surface 36 is the same direction for both sides.

[0022] The first emission section 37 is located on the front side in the front-to-back direction of the upper internal reflective surface 36. This first emission section 37 partially protrudes forward from the first lens member 13, and its protruding end is the first emission surface 38. The first emission surface 38 is positioned opposite the upper internal reflective surface 36 in the front-to-back direction and is a free-form surface based on a sphere, set so that the focal point (rear focal point) of the low lens section 61 (described later) is near the cutoff edge 36a of the upper internal reflective surface 36. The first emission surface 38 emits the light reflected by the upper internal reflective surface 36 towards the front in the front-to-back direction.

[0023] The first lens member 13 is provided with two positioning holes 13a, two positioning protrusions 13b, and three abutment points 13c. Each positioning hole 13a is designed to accommodate the first positioning protrusions 15b of the first frame member 15, which will be described later. By fitting the corresponding first positioning protrusions 15b into each positioning hole 13a, the first lens member 13 and the first frame member 15 can be positioned in the width direction and the vertical direction. Therefore, each positioning hole 13a works in cooperation with each first positioning protrusion 15b to function as a first frame-side positioning mechanism that positions the first frame member 15 and the first lens member 13 in the orthogonal direction.

[0024] The two positioning protrusions 13b are located near both ends in the width direction of the first lens member 13 and protrude columnarly toward the rear in the front-rear direction. Each positioning protrusion 13b can be fitted into each positioning hole 24a of the substrate 24, and in this fitted state, it can be passed through the positioning through hole 11d of the main body portion 11a of the mounting member 11. By fitting each positioning protrusion 13b into its corresponding positioning hole 24a, the position and orientation of the first lens member 13 and the substrate 24 in the width direction and vertical direction can be determined. Therefore, each positioning protrusion 13b works in cooperation with each positioning hole 24a to function as a first substrate-side positioning mechanism that positions the first lens member 13 and the substrate 24 in the orthogonal direction.

[0025] The three abutment points 13c are located near both ends in the width direction of the first lens member 13, and near the upper and lower ends in the vertical direction. Each of these abutment points 13c protrudes to the rear in the front-rear direction, and the rear end is flat. Each abutment point 13c can simultaneously abut against the substrate 24 while the first lens member 13 and the substrate 24 are positioned by the positioning projections 13b. By abutting against the substrate 24, each abutment point 13c can make the front-rear positional relationship of the first lens member 13 with respect to the substrate 24 appropriate. In particular, since each abutment point 13c in Embodiment 1 is located at the three corners of the first lens member 13, the positional relationship of the first lens member 13 with respect to the substrate 24 can be made more appropriate. In Embodiment 1, each abutment point 13c is positioned to overlap in the front-rear direction with each of the first abutment points 15d of the first frame member 15, which will be described later. Therefore, when each abutment point 13c is assembled as described later, the force from each first abutment point 15d can be transferred to the substrate 24, thereby suppressing the load on the first lens member 13.

[0026] As shown in Figures 2 and 3, the second lens member 14 is provided corresponding to the four second light sources 22 of the light source unit 12 and is made of transparent resin. This second lens member 14 is an optical lens that guides the light emitted from each second light source 22 inward and works in cooperation with the projection lens 16 to form a second light distribution pattern. As shown in Figures 7 to 9, the second lens member 14 has four second incident portions 41 on its rear side in the front-to-back direction. Each second incident portion 41 corresponds individually to each second light source 22 and has basically the same configuration as the others, but has optical characteristics (surface shape, etc.) according to the light distribution image required for each.

[0027] Each second incident section 41 has a portion facing the corresponding second light source 22 that protrudes toward the second light source 22, while its center is recessed toward the opposite side of the second light source 22, and has a second opposing incident surface 42, a second inclined incident surface 43, and a second annular reflective surface 44. The second opposing incident surface 42 is curved convexly toward the second light source 22, and the second light source 22 is positioned near the rear (second light source 22) focal point (rear focal point). The second opposing incident surface 42 causes the light emitted from the second light source 22 to enter the second lens member 14 as parallel light traveling approximately parallel to the axis of the second incident section 41, and directs it toward the second output section 45, which will be described later.

[0028] The second inclined incident surface 43 is provided in a frustoconical shape, protruding from the second opposing incident surface 42 toward the second light source 22. This second inclined incident surface 43 directs light from the second light source 22 that does not travel toward the second opposing incident surface 42 into the second lens member 14. The second annular reflective surface 44 is provided in a frustoconical shape, surrounding the second inclined incident surface 43, and is positioned where light incident from the second inclined incident surface 43 into the second lens member 14 travels. The second annular reflective surface 44 reflects light incident from the second inclined incident surface 43 and directs it toward the second output section 45, which will be described later, as parallel light traveling approximately parallel to the axis of the second incident section 41. The second annular reflective surface 44 may reflect light using total internal reflection, or it may reflect light by bonding aluminum, silver, etc., to it by vapor deposition or painting.

[0029] The second emission section 45 is located on the front side of the second incidence section 41 in the front-to-back direction. This second emission section 45 partially protrudes forward from the second lens member 14, and its protruding end is the second emission surface 46. The second emission surface 46 is positioned opposite the second incidence section 41 in the front-to-back direction and is a free-form surface that spreads the light from the second incidence section 41 in the width direction. The second emission surface 46 causes the light from the second incidence section 41 to be emitted towards the front in the front-to-back direction.

[0030] The second lens member 14 is provided with one screw hole 14a, two positioning holes 14b, three positioning protrusions 14c, and three abutment points 14d. Each screw hole 14a is designed to allow the screw protrusions 15a of the first frame member 15, which will be described later, to pass through. Each positioning hole 14b is designed to allow the second positioning protrusions 15c of the first frame member 15, which will be described later, to be fitted into. By fitting the corresponding second positioning protrusions 15c into each positioning hole 14b, the second lens member 14 and the first frame member 15 can be positioned in the width direction and the vertical direction. Therefore, each positioning hole 14b works in cooperation with each second positioning protrusion 15c to function as a second frame-side positioning mechanism that positions the first frame member 15 and the second lens member 14 in the orthogonal direction.

[0031] The three positioning protrusions 14c are positioned such that one is located midway along the upper end in the vertical direction of the second lens member 14, and two are located near both ends of the lower end in the vertical direction. Each of these positioning protrusions 14c protrudes columnarly toward the rear in the front-rear direction. Each positioning protrusion 14c can be fitted into each positioning hole 24a of the substrate 24, and in this fitted state, it can be passed through the positioning through hole 11d of the main body 11a of the mounting member 11. By fitting each of these positioning protrusions 14c into their respective positioning holes 24a, the position and orientation of the second lens member 14 and the substrate 24 in the width direction and vertical direction can be determined. Therefore, each positioning protrusion 14c works in cooperation with each positioning hole 24a to function as a second substrate-side positioning mechanism that positions the second lens member 14 and the substrate 24 in the orthogonal direction.

[0032] Each abutment point 14d is located near each positioning through hole 11d. Each abutment point 14d protrudes to the rear in the front-rear direction, and its rear end is flat. Each abutment point 14d can abut against the substrate 24 simultaneously while the second lens member 14 and the substrate 24 are positioned by each positioning projection 14c. By abutting against the substrate 24, each abutment point 14d can make the front-rear positional relationship of the second lens member 14 with respect to the substrate 24 appropriate. In particular, since each abutment point 14d in Embodiment 1 is located at the three corners of the second lens member 14, the positional relationship of the second lens member 14 with respect to the substrate 24 can be made more appropriate. In Embodiment 1, each abutment point 14d is positioned to overlap in the front-rear direction with each second abutment point 15e of the first frame member 15, which will be described later. Therefore, when each abutment point 14d is assembled as described later, the force from each second abutment point 15e can be transferred to the substrate 24, thereby suppressing the load on the first lens member 13.

[0033] As shown in Figures 2 and 3, the first frame member 15 is annular in shape, surrounding the first lens member 13 and the second lens member 14. That is, the first frame member 15 is capable of receiving the first lens member 13 and the second lens member 14 when they are arranged side by side in the width direction. In this first frame member 15, as shown in Figures 10 and 11, a first opening 51 is provided on the upper side in the vertical direction, on the inner side in the width direction (right side when viewing Figure 10 from the front), and a second opening 52 is provided on the outside of it. The first opening 51 penetrates the first frame member 15 in the front-to-back direction and is capable of receiving the first emission portion 37 so as to surround the first emission surface 38 of the first lens member 13. The first opening 51 is capable of passing light through the first emission surface 38 and corresponds to the light passing through the first lens member 13. The second opening 52 penetrates the first frame member 15 in the front-to-back direction and is capable of receiving the second incident portion 41 so as to surround the second emission surface 46 of the second lens member 14. The second opening 52 can allow light passing through the second emission surface 46 to pass through and corresponds to the light passing through the second lens member 14.

[0034] The first frame member 15 is provided with three screw projections 15a, two first positioning projections 15b, two second positioning projections 15c, four first abutment points 15d, and three second abutment points 15e on its rear surface in the front-rear direction. Each screw projection 15a is columnar in shape and protrudes to the rear in the front-rear direction, with a screw hole 15f having a screw groove cut into its center. The screw hole 15f allows the fastening member 18 to be screwed in. Each screw projection 15a is positioned to correspond to the three screw holes 11c of the main body 11a of the mounting member 11, and is also capable of passing through the corresponding screw holes 14a of the second lens member 14 and the screw holes 24b of the substrate 24. Therefore, each screw projection 15a allows the fastening member 18 to be screwed into the screw hole 15f from the rear in the front-to-back direction, with the first lens member 13, the second lens member 14, and the base plate 24 positioned between the first frame member 15 and the mounting member 11 (its main body portion 11a).

[0035] The two first positioning protrusions 15b are located near both ends in the width direction on the periphery of the first opening 51 and protrude columnarly toward the rear in the front-rear direction. Each first positioning protrusion 15b can be fitted into each positioning hole 13a of the first lens member 13. By fitting each of these first positioning protrusions 15b into their respective positioning holes 13a, the position and orientation of the first frame member 15 and the first lens member 13 in the width direction and vertical direction can be determined.

[0036] The two second positioning protrusions 15c are positioned at intervals in the width direction on the lower periphery of the second opening 52 and protrude columnarly toward the rear in the front-rear direction. Each second positioning protrusion 15c can be fitted into each positioning hole 14b of the second lens member 14. By fitting each of these second positioning protrusions 15c into its corresponding positioning hole 14b, the position and orientation of the first frame member 15 and the second lens member 14 in the width direction and vertical direction can be determined.

[0037] In the vehicle light fixture 10 of Embodiment 1, the degree of positioning between each positioning hole 24a and each positioning projection 13b is set looser than the degree of positioning between each positioning hole 13a and each first positioning projection 15b, the degree of positioning between each second positioning projection 15c and each positioning hole 14b, and the degree of positioning between each positioning hole 24a and each positioning projection 14c. This degree of positioning refers to the allowable deviation of the center position of each projection when it is fitted into each hole. In Embodiment 1, this loosening is achieved by making the gap between each positioning hole 24a and each positioning projection 13b slightly larger than the gap between other holes and projections. Note that this loosening method may be other configurations and is not limited to the configuration of Embodiment 1. Therefore, in the vehicle lighting device 10 of Embodiment 1, the tolerance for misalignment between the substrate 24 and the first lens member 13 is slightly larger compared to the three locations of the first frame member 15 and the first lens member 13, the first frame member 15 and the second lens member 14, and the substrate 24 and the second lens member 14.

[0038] The four first abutment points 15d are located near both ends of the three corners on the periphery of the first opening 51, and near the inner lower end, they are positioned to sandwich the screw projection 15a in the vertical direction. Each first abutment point 15d protrudes to the rear in the front-rear direction, and its rear end is flat. Each first abutment point 15d can abut against the first lens member 13 simultaneously, with the first frame member 15 and the first lens member 13 positioned by each first positioning projection 15b. By abutting against the first lens member 13, each first abutment point 15d can make the front-rear positional relationship of the first frame member 15 with respect to the first lens member 13 appropriate. In particular, since each first abutment point 15d in Embodiment 1 is located at the three corners on the periphery of the first opening 51, the positional relationship of the first frame member 15 with respect to the first lens member 13 can be made more appropriate.

[0039] The three second abutment points 15e are located near both ends in the lower width direction and near the upper center on the periphery of the second opening 52. Each second abutment point 15e protrudes to the rear in the front-rear direction, and its rear end is flat. Each second abutment point 15e can abut against the second lens member 14 simultaneously, with the first frame member 15 and the second lens member 14 positioned by each second positioning projection 15c. By abutting against the second lens member 14, each second abutment point 15e can make the front-rear positional relationship of the first frame member 15 with respect to the second lens member 14 appropriate. In particular, since each second abutment point 15e in Embodiment 1 is located at the three corners on the periphery of the second opening 52, the positional relationship of the first frame member 15 with respect to the second lens member 14 can be made more appropriate.

[0040] Furthermore, the first frame member 15 is provided with three screw holes 15g, six lens receiving points 15h, and two projection positioning protrusions 15k on its front surface in the front-to-back direction. The three screw holes 15g are positioned to surround the first opening 51 and the second opening 52. Each screw hole 15g has a screw thread in the center, allowing the fastening member 19 to be screwed in from the front in the front-to-back direction.

[0041] The six lens support points 15h are located on the inside of the first opening 51 in the width direction, on the outside of the second opening 52 in the width direction, and between the first opening 51 and the second opening 52. Each lens support point 15h is formed to protrude forward in the front-rear direction, and its protruding end is flat. Each of these lens support points 15h is designed to accommodate the flange portion 16a of the projection lens 16, which will be described later. By abutting each lens support point 15h against the flange portion 16a, the front-rear positional relationship of the projection lens 16 with respect to the first frame member 15 can be made appropriate.

[0042] The two projection positioning protrusions 15k are provided on the outer and inner tip surfaces of the three lens receiving points 15h, and protrude columnarly forward in the front-to-back direction. Each projection positioning protrusion 15k can be fitted into the positioning holes 16b of the projection lens 16, which will be described later. By fitting each projection positioning protrusion 15k into its corresponding positioning hole 16b, the position and orientation of the first frame member 15 and the projection lens 16 in the width direction and vertical direction can be determined.

[0043] As shown in Figures 1 to 3, the projection lens 16 is provided on the front side in the front-rear direction of the first emission surface 38 (first emission section 37) of the first lens member 13 and the second emission surface 46 (second emission section 45) of the second lens member 14. This projection lens 16 projects the light emitted from the first emission surface 38 and the light emitted from the second emission surface 46 toward the front of the vehicle, forming a predetermined light distribution pattern. The projection lens 16 is a molded product made of resin material.

[0044] The projection lens 16 has a low lens portion 61 and a high lens portion 62. The low lens portion 61 is located in front of the first emission surface 38, that is, on the outside in the width direction of the projection lens 16, and is a convex lens that is inclined to move backward as it moves outward. The focal point (rear focal point) of the low lens portion 61 is located near the cutoff edge 36a of the upper internal reflective surface 36. By irradiating the low lens portion 61 with light from the first emission surface 38, the low lens portion 61 projects the shape of the upper internal reflective surface 36, including the cutoff edge 36a, onto a screen where a horizontal line and a vertical line intersect, with the projection optical axis as the origin. As a result, the low lens portion 61 can form a passing light distribution pattern on the screen that has a cutoff line on the projection optical axis, making the area near the projection optical axis the brightest while illuminating a large area in the width direction below the cutoff line.

[0045] The high lens portion 62 is located in front of the second emission surface 46, that is, on the inside in the width direction of the projection lens 16, and is a thick convex lens that extends substantially in the width direction, with the emission surface being a convex surface that protrudes significantly forward in the front-rear direction. By irradiating light from the second emission surface 46, the high lens portion 62 can form a driving light distribution pattern on the screen that partially overlaps with the upper end of the passing light distribution pattern and irradiates the upper part of the passing light distribution pattern.

[0046] Therefore, in the vehicle lighting device 10, the five first light sources 21 of the light source unit 12, the first lens member 13, and the projection lens 16 function as a low beam unit 63, which is a first unit that forms a passing light distribution pattern as a first light distribution pattern. In addition, in the vehicle lighting device 10, the four second light sources 22 of the light source unit 12, the second lens member 14, and the projection lens 16 function as a high beam unit 64, which is a second unit that forms a driving light distribution pattern as a second light distribution pattern.

[0047] The projection lens 16 is provided with a flange portion 16a. This flange portion 16a protrudes in the width direction and vertical direction, surrounding the low lens portion 61 and the high lens portion 62, and can be fitted to each lens receiving portion 15h of the first frame member 15. Positioning holes 16b are provided on both sides of the flange portion 16a in the width direction. One of the positioning holes 16b is formed by penetrating the flange portion 16a, and the other is formed by partially cutting out the flange portion 16a.

[0048] The second frame member 17 is annular in shape and surrounds the projection lens 16. This second frame member 17 is provided with a projection opening 17a, a flange portion 17b, and three screw holes 17c. The projection opening 17a penetrates the second frame member 17 in the front-to-back direction and is capable of receiving the projection lens 16 so as to surround it (see Figure 1). Therefore, the projection opening 17a can allow light passing through the projection lens 16 to pass through.

[0049] The flange portion 17b protrudes in the width direction and vertical direction while surrounding the projection opening 17a, and is designed to be able to be fitted onto the flange portion 16a of the projection lens 16 from the front in the front-rear direction. Each screw hole 17c is provided on the upper side of the flange portion 17b in the vertical direction, protruding from both side edges in the width direction, and on the lower side of the flange portion 17b in the vertical direction, protruding from the edge near the center in the width direction. Each of these screw holes 17c is positioned in relation to each screw hole 15g of the first frame member 15, and fastening members 19 that are screwed into each screw hole 15g can be passed through them.

[0050] The vehicle light fixture 10 is assembled as shown in Figures 2 and 3. First, the first lens member 13 and the second lens member 14 are placed inside the first frame member 15, aligned in the width direction, with the first emission portion 37 positioned in the first opening 51 and the second incidence portion 41 positioned in the second opening 52, starting from the rear in the front-rear direction. At this time, the first lens member 13 is positioned appropriately with respect to the first frame member 15 by fitting each first positioning projection 15b into each positioning hole 13a and abutting each first abutment point 15d. Similarly, the second lens member 14 is positioned appropriately with respect to the first frame member 15 by fitting each second positioning projection 15c into each positioning hole 14b and abutting each second abutment point 15e.

[0051] Subsequently, the light source unit 12, attached to the mounting member 11, is positioned against the first lens member 13 and the second lens member 14, which maintain the above state, from the rear in the front-rear direction. In Figure 3, the mounting member 11 and the light source unit 12 are shown separately to facilitate understanding of the positioning process. At this time, the positional relationship of the substrate 24 of the light source unit 12 with respect to the first lens member 13 is correct when the positioning protrusions 13b of the first lens member 13 are fitted into each positioning hole 24a and the abutment points 13c of the first lens member 13 are abutted against the substrate 24. The positional relationship of the substrate 24 with respect to the second lens member 14 is correct when the positioning protrusions 14c of the second lens member 14 are fitted into each positioning hole 24a and the abutment points 14d of the second lens member 14 are abutted against the substrate 24.

[0052] Here, each positioning projection 13b and each positioning projection 14c partially penetrates the substrate 24 and protrudes to the rear in the front-rear direction, but since the main body portion 11a of the mounting member 11 is provided with a positioning through hole 11d, interference with the main body portion 11a is prevented. Furthermore, in the vehicle lamp 10 of Embodiment 1, the degree of positioning of the substrate 24 and the first lens member 13 is slightly loosened compared to the three locations of the first frame member 15 and the first lens member 13, the first frame member 15 and the second lens member 14, and the substrate 24 and the second lens member 14. This makes it possible to assemble the first frame member 15, the first lens member 13, the second lens member 14 and the substrate 24 while positioning them as described above. In other words, even if the dimensional variations of the first frame member 15 and the first lens member 13, the first frame member 15 and the second lens member 14, and the substrate 24 and the second lens member 14 are biased in one direction, this bias can be absorbed by the tolerance of the misalignment of the substrate 24 and the first lens member 13.

[0053] Subsequently, with the components positioned in the front-to-back direction (optical axis direction) as described above, the substrate 24 exposed within the notches 11e of the main body 11a of the mounting member 11 is pushed upward in the vertical direction (see the two arrows), as shown in Figure 12. This allows the substrate 24 to be positioned upward, that is, the positioning protrusions 13b and 14c in each positioning hole 24a to be pressed downward. This allows the first light source 21 and each second light source 22 provided on the substrate 24 to be in a more appropriate positional relationship with the corresponding first lens member 13 and second lens member 14.

[0054] Subsequently, as shown in Figures 2 and 3, with the frame member positioned towards the upper side, the three fastening members 18 are screwed into the screw holes 15f of the three screw projections 15a of the first frame member 15, passing through the three screw holes 11c of the main body 11a and the two screw holes 24b of the substrate 24 from the rear side in the front-rear direction. As a result, the first lens member 13 and the second lens member 14 are sandwiched between the first frame member 15 and the substrate 24 and attached to the substrate 24 (light source unit 12) together with the mounting member 11.

[0055] Next, from the front in the front-to-back direction, the projection positioning projections 15k are fitted into the positioning holes 16b, and the flange portion 16a is positioned against each lens receiving location 15h, thereby positioning the projection lens 16 in front of the first frame member 15. Then, from the front in the front-to-back direction, the second frame member 17 is positioned on the projection lens 16, with the flange portion 17b positioned against the flange portion 16a, and the low lens portion 61 and high lens portion 62 are inserted into the projection opening 17a. In this stacked state, the three fastening members 19 are screwed into the three screw holes 15g of the first frame member 15 from the rear in the front-to-back direction, passing through the screw holes 17c as appropriate. As a result, the projection lens 16 is mounted sandwiched between the first frame member 15 and the second frame member 17. As a result, the light source unit 12, along with the mounting member 11, is assembled with the first lens member 13, the second lens member 14, the first frame member 15, the projection lens 16, and the second frame member 17 to form a vehicle lamp 10.

[0056] In the vehicle lighting unit 63, the low beam unit 63 illuminates five first light sources 21, causing the light from each to be emitted from the first lens member 13 and projected by the projection lens 16 to form a passing light distribution pattern. In addition, in the high beam unit 64, the vehicle lighting unit 10 illuminates four second light sources 22, causing the light from each to be emitted from the second lens member 14 and projected by the projection lens 16 to form a driving light distribution pattern that partially overlaps with the upper end of the passing light distribution pattern and illuminates the upper part of the passing light distribution pattern.

[0057] In the vehicle lighting fixture 10, the low beam unit 63 that forms a passing light distribution pattern allows light from each first light source 21 to be incident from each first incident part 31, so that the light from each of the spreading first light sources 21 can be efficiently incident onto the first lens member 13. Furthermore, in the vehicle lighting fixture 10, the first lens member 13 forms a cutoff line by totally reflecting the incident light between the lower internal reflective surface 35 and the upper internal reflective surface 36, so that the passing light distribution pattern can be formed while efficiently utilizing that light.

[0058] Furthermore, in the vehicle lighting unit 10, the high beam unit 64 that forms the light distribution pattern for driving allows light from each second light source 22 to be incident from each second incident section 41, so that the light from each second light source 22, which has a wide spread, can be efficiently incident onto the second lens member 14. Then, in the vehicle lighting unit 10, the second lens member 14 directs the incident light directly to the second emission surface 46 of the second emission section 45, so that the light can be efficiently utilized to form the light distribution pattern for driving.

[0059] Here, we will explain the challenges of conventional vehicle lighting technology. Conventional vehicle lighting uses a support member that supports two lenses and attaches to a substrate, and the lenses supported there are held in place by a case, thereby ensuring the correct positional relationship between the two lenses and the light source mounted on the substrate. As a result, conventional vehicle lighting has an increased number of parts for fixing, which leads to a more complex assembly process and a greater risk of dimensional variations. Furthermore, while conventional vehicle lighting has disclosed a configuration in which one of the lenses is integrated with the support member, this complicates the structure of that part and may place a load on the lens for support.

[0060] In contrast, the vehicle light fixture 10 of this disclosure supports the first lens member 13 and the second lens member 14 by sandwiching them between the first frame member 15 and the substrate 24. As a result, the vehicle light fixture 10 can minimize the number of parts required for fixing, simplify the assembly process, and minimize the impact of dimensional variations. Furthermore, since the vehicle light fixture 10 only has multiple holes or protrusions for positioning on the first lens member 13 and the second lens member 14, it can have a simple structure and minimize the load required for support. As a result, the vehicle light fixture 10 can position the first lens member 13 and the second lens member 14 in a more appropriate position and can achieve optical performance as designed.

[0061] Furthermore, the vehicle lamp 10 has a first lens member 13 that constitutes the main optical system of the low beam unit 63, and a second lens member 14 that constitutes the main optical system of the high beam unit 64. Therefore, the vehicle lamp 10 can individually adjust the optical properties of each unit (63, 64) by appropriately adjusting the optical properties of the corresponding lens members (13, 14). As a result, the vehicle lamp 10 can appropriately form a first light distribution pattern (a passing light distribution pattern in Embodiment 1) and a second light distribution pattern (a driving light distribution pattern in Embodiment 1) while suppressing manufacturing costs and the complexity of adjustments.

[0062] Furthermore, the vehicle light fixture 10 slightly loosens the degree of positioning of the substrate 24 and the first lens member 13 compared to three other locations: the first frame member 15 and the first lens member 13, the first frame member 15 and the second lens member 14, and the substrate 24 and the second lens member 14. As a result, even if the dimensional variation of each positioning is biased in one direction, the vehicle light fixture 10 can absorb this bias with the tolerance for misalignment of the substrate 24 and the first lens member 13, and can assemble the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24 while positioning them.

[0063] The vehicle light fixture 10 has a notch 11e in the main body portion 11a of the mounting member 11 that exposes at least a portion of the substrate 24. Therefore, when the vehicle light fixture 10 is assembled while positioning the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24, each position can be shifted to one side. This allows the vehicle light fixture 10 to have a more appropriate positional relationship between each first light source 21 and each second light source 22 and the corresponding first lens member 13 and second lens member 14. In particular, when the substrate 24 is positioned, the vehicle light fixture 10 has notches 11e at two locations in the width direction: approximately at the center of the five first light sources 21 (described later) and approximately at the center of the four second light sources 22 (described later). Therefore, the vehicle lighting fixture 10 can have a more appropriate positional relationship between each first light source 21 and the first lens member 13, and between each second light source 22 and the second lens member 14.

[0064] In particular, the vehicle lamp 10 has a looser positioning degree for the first substrate-side positioning mechanism (substrate 24 and first lens member 13) compared to the other three positioning mechanisms, and the four positioning mechanisms can be shifted to one side by the double notches 11e as described above. Therefore, the vehicle lamp 10 can achieve higher precision in positioning between the substrate 24 and the first lens member 13 by loosening the positioning degree between the substrate 24 and the first lens member 13 of the low beam unit 63 and shifting each positioning to one side. This is because, by loosening the positioning degree, the degree of tolerance for shifting to one side even when the positioning is achieved is increased. Here, the substrate 24 and the first lens member 13 constitute the low beam unit 63 that forms a passing light distribution pattern. The low beam unit 63 requires higher positioning precision than the high beam unit 64 because precision is required at the cutoff line position. Based on these considerations, the vehicle lighting fixture 10 can be assembled while positioning the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24 as described above, while enabling the formation of a passing light distribution pattern with the required precision.

[0065] The vehicle light fixture 10 allows the assembly process of the mounting member 11, light source unit 12, first lens member 13, second lens member 14, and first frame member 15 to be performed entirely from the rear side in the front-to-back direction relative to the first frame member 15. In other words, the vehicle light fixture 10 allows the first lens member 13 and second lens member 14, the light source unit 12, and the mounting member 11 to be positioned on the first frame member 15 from the rear side in the front-to-back direction, and each fastening member 19 can be screwed in from the rear side in the front-to-back direction. Therefore, the vehicle light fixture 10 makes it easy to attach the first lens member 13 and second lens member 14 to the mounting member 11 while sandwiching them between the first frame member 15 and the base plate 24. Furthermore, the vehicle light fixture 10 allows the assembly process of the projection lens 16 and second frame member 17 to be performed entirely from the front side in the front-to-back direction relative to the first frame member 15. Therefore, the vehicle light fixture 10 can be easily attached to the mounting member 11 by sandwiching the projection lens 16 between the first frame member 15 and the second frame member 17.

[0066] The vehicle light fixture 10 assembles the mounting member 11, to which the light source unit 12 is attached, to the first frame member 15 by screwing fastening members 18 into each screw hole 15f provided in the first frame member 15. Therefore, the vehicle light fixture 10 does not need to provide screw holes in the mounting member 11, so the mounting member 11 can be made into a plate-shaped main body 11a, resulting in a simpler structure. This is because if screw holes are provided, a predetermined thickness dimension is required, which would necessitate attaching bosses for the screw holes to the plate-shaped main body 11a, leading to structural complexity. Furthermore, while it is conceivable to increase the thickness dimension of the main body 11a, it would become block-shaped rather than plate-shaped. In addition, the vehicle light fixture 10 assembles the projection lens 16 and the second frame member 17 to the first frame member 15 by screwing fastening members 19 into each screw hole 15g provided in the first frame member 15. Therefore, the vehicle lighting fixture 10 can also have a simple structure for the second frame member 17.

[0067] As an example of a vehicle lighting device related to this disclosure, vehicle lighting device 10 can achieve the following effects.

[0068] The vehicle light fixture 10 includes a first lens member 13 that forms a first light distribution pattern with light from a first light source 21, and a second lens member 14 that forms a second light distribution pattern with light from a second light source 22. The vehicle light fixture 10 also includes a substrate 24 on which the first light source 21 and the second light source 22 are provided, and a first frame member 15 that surrounds the first lens member 13 and the second lens member 14, which are arranged side by side in an orthogonal direction, while allowing light passing through the first lens member 13 and light passing through the second lens member 14 to pass through. The first frame member 15 is attached to the substrate 24 in a state that it sandwiches and supports the first lens member 13 and the second lens member 14 between itself and the substrate 24 in the optical axis direction. As a result, the vehicle light fixture 10 can support the first lens member 13 and the second lens member 14 by sandwiching them between the first frame member 15 and the substrate 24, minimizing the number of parts required for fixing, simplifying the assembly process, and minimizing the impact of dimensional variations. Therefore, the vehicle light fixture 10 can have the first lens member 13 and the second lens member 14 and the first light source 21 and the second light source 22 in an appropriate positional relationship with a simple configuration, and can also be made smaller.

[0069] Furthermore, the vehicle light fixture 10 assembles the first frame member 15 and the base plate 24 using fastening members 18 that engage with the first frame member 15 through the base plate 24. Therefore, the vehicle light fixture 10 does not require a place on the base plate 24 side for engaging the fastening members 18, thus simplifying the structure of the base plate 24.

[0070] Furthermore, the vehicle lamp 10 has a first lens member 13 which has a positioning hole 13a as a first frame-side positioning mechanism that positions it orthogonally with the first frame member 15, and a positioning projection 13b as a first substrate-side positioning mechanism that positions it orthogonally with the substrate 24. The second lens member 14 has a positioning hole 14b as a second frame-side positioning mechanism that positions it orthogonally with the first frame member 15, and a positioning projection 14c as a second substrate-side positioning mechanism that positions it orthogonally with the substrate 24. The first substrate-side positioning mechanism has a looser degree of positioning compared to the first frame-side positioning mechanism, the second frame-side positioning mechanism, and the second substrate-side positioning mechanism. As a result, even if the effect of dimensional variations in each positioning is biased in one direction, the vehicle lamp 10 can absorb that bias with the first substrate-side positioning mechanism, and the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24 can be assembled while positioning them.

[0071] The vehicle light fixture 10 has a first light distribution pattern that is a passing light distribution pattern with a cutoff line. Therefore, the vehicle light fixture 10 can be assembled while positioning the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24, and the passing light distribution pattern can be appropriately formed by the first lens member 13 and the substrate 24 which are in an appropriate positional relationship.

[0072] The vehicle light fixture 10 has a substrate 24 that is in surface contact with a mounting member 11 which acts as a heat dissipation member for dissipating heat, and the mounting member 11 has a notch 11e that exposes a part of the substrate 24 in a perpendicular direction. As a result, the vehicle light fixture 10 can be positioned to one side in each positioning mechanism, and the positional relationship between each first light source 21 and the first lens member 13, and the positional relationship between each second light source 22 and the second lens member 14 can be made more appropriate.

[0073] The vehicle light fixture 10 further includes a projection lens 16 that projects light emitted from a first lens member 13 and light emitted from a second lens member 14, and a second frame member 17 for fixing the projection lens 16. The second frame member 17 is attached to the first frame member 15 in such a state that it sandwiches and supports the projection lens 16 between itself and the first frame member 15 in the optical axis direction. As a result, the vehicle light fixture 10 can have a simple structure for supporting the projection lens 16, simplify the assembly process, and reduce the effects of dimensional variations.

[0074] The vehicle light fixture 10 has a first light source 21 located on the lower side in the vertical direction and a second light source 22 located on the upper side in the vertical direction on the circuit board 24. As a result, the vehicle light fixture 10 can arrange both light sources (21, 22) in a diagonal positional relationship on the circuit board 24, and the distance between the two light sources (21, 22) can be increased by efficiently utilizing the size dimensions of the circuit board 24. As a result, the vehicle light fixture 10 mounts both light sources (21, 22) on a single circuit board 24, reducing the number of parts and assembly steps, while increasing the distance between the first light source 21 and the second light source 22 compared to when they are arranged in the width direction, and efficiently dissipating heat from both light sources (21, 22).

[0075] Therefore, the vehicle light fixture 10 of Embodiment 1 according to this disclosure has a simple configuration that allows for an appropriate positional relationship between two lenses (first lens member 13, second lens member 14) and the first light source 21 and the second light source 22.

[0076] In the above-described embodiment 1, both notches 11e are formed by cutting out the lower vertical edge of the main body portion 11a. However, the notches 11e are not limited to the configuration of embodiment 1, as long as they allow the positioning state by each positioning mechanism to be shifted to one side by exposing at least a part of the substrate 24 from the main body portion 11a. The position, number, and size of the area of ​​the substrate 24 to be exposed can be set as appropriate.

[0077] Furthermore, in the vehicle lamp 10, the degree of positioning of the first substrate-side positioning mechanism is looser than that of the other three positioning mechanisms, but the degree of positioning of the first frame-side positioning mechanism may also be looser than that of the other three positioning mechanisms. Even with this configuration, the vehicle lamp 10 can absorb the bias in one direction even if the dimensional variation of each positioning is biased in one direction, and the first frame member 15, the first lens member 13, the second lens member 14, and the substrate 24 can be assembled while positioning them. And, in this configuration, the vehicle lamp 10 can appropriately form a passing light distribution pattern with the first lens member 13 and the substrate 24 which are in an appropriate positional relationship, similar to Embodiment 1. [Embodiment 2]

[0078] Next, as an example of a vehicle lighting device according to this disclosure, the vehicle lighting device 10A of Embodiment 2 will be described using Figures 13 to 22. Since the basic concept and configuration of the vehicle lighting device 10A are the same as those of the vehicle lighting device 10 of Embodiment 1, the same reference numerals are used for parts with the same configuration, and detailed explanations are omitted.

[0079] First, the vehicle lighting fixture 10A of Embodiment 2 has a configuration in which a low beam unit 63A and a high beam unit 64A are arranged vertically. Accordingly, the arrangement and shape of each part of the vehicle lighting fixture 10A are different from those of the vehicle lighting fixture 10 of Embodiment 1. As shown in Figures 13 to 15, the vehicle lighting fixture 10A of Embodiment 2 has a light source unit 12A, a first lens member 13A, a second lens member 14A, a first frame member 15A, a projection lens 16A, and a second frame member 17A attached to a mounting member 11A.

[0080] The mounting member 11A has a main body 11Aa that is roughly square in shape. The main body 11Aa is provided with six screw holes 11Ac, six positioning holes 11Ad, and two frame positioning holes 11Af. Each screw hole 11Ac allows a fastening member 18, which is screwed into the screw hole 15Af of the first frame member 15A, to pass through. Each positioning hole 11Ad allows positioning protrusions 13Ab and 14Ac, which will be described later, to pass through. Each frame positioning hole 11Af allows positioning protrusions 15Ab, which will be described later, to pass through. The main body 11Aa may also be provided with two notches 11e (see Figure 12, etc.), similar to Embodiment 1. By providing both notches 11e in the mounting member 11A, the same effects as in Embodiment 1 can be obtained.

[0081] The light source unit 12 has a substrate 24A that is roughly square in shape. On the substrate 24A, four second light sources 22A are arranged in the width direction on the upper side in the vertical direction, and five first light sources 21A are arranged in the width direction on the lower side in the vertical direction. The substrate 24A is also provided with six positioning holes 24Aa, six screw holes 24Ab, and two frame positioning holes 24Ac. Each positioning hole 24Aa can accommodate positioning protrusions 13Ab and 14Ac, which will be described later. Each screw hole 24Ab can accommodate screw protrusions 15a, which will be described later. Each frame positioning hole 24Ac can accommodate positioning protrusions 15Ab, which will be described later.

[0082] The first lens member 13A is provided on the lower side in the vertical direction, corresponding to the five first light sources 21A of the light source unit 12A, and is made of transparent resin. This first lens member 13A is an optical lens that guides the light emitted from each first light source 21A inward and cooperates with the projection lens 16A to form a first light distribution pattern. As shown in Figures 16 to 18, the first lens member 13A has five first incident portions 31A on the lower side in the vertical direction. Each first incident portion 31A has the same configuration as each first incident portion 31.

[0083] Similar to the first lens member 13, the first lens member 13A reflects the parallel light incident from each first incident section 31A at the lower internal reflective surface 35, then at the upper internal reflective surface 36, and propagates to the first exit section 37A. At this time, the first lens member 13A can form a cutoff line with the cutoff edge 36a of the upper internal reflective surface 36. The first exit section 37A is provided on the front side in the front-rear direction of the upper internal reflective surface 36, and causes the incident light to exit from the protruding first exit surface 38A toward the front side in the front-rear direction.

[0084] The first lens member 13A is provided with two positioning protrusions 13Ab and four abutment points 13Ac. The two positioning protrusions 13Ab are located near both ends in the width direction of the first lens member 13A and protrude columnarly toward the rear in the front-rear direction. Each positioning protrusion 13Ab can be fitted into the corresponding positioning holes 24Aa of the substrate 24A, and in this fitted state, it can be passed through the positioning through-hole 11Ad of the main body portion 11Aa of the mounting member 11A. By fitting each positioning protrusion 13Ab into its corresponding positioning hole 24Aa, the position and orientation of the first lens member 13A and the substrate 24A in the width direction and vertical direction can be determined. Therefore, each positioning protrusion 13Ab works in cooperation with each positioning through-hole 11Ad to function as a first substrate-side positioning mechanism that positions the first lens member 13A and the substrate 24A in the orthogonal direction.

[0085] The four abutment points 13Ac are located near both ends in the width direction of the first lens member 13A and spaced apart in the vertical direction. Each of these abutment points 13Ac protrudes to the rear in the front-rear direction, and its rear end is flat. Each abutment point 13Ac can simultaneously abut against the substrate 24A while the first lens member 13A and the substrate 24A are positioned by the positioning protrusions 13Ab. By abutting against the substrate 24A, each abutment point 13Ac can make the front-rear positional relationship of the first lens member 13A with respect to the substrate 24A appropriate. In particular, since each abutment point 13Ac in Embodiment 2 is located at the four corners of the first lens member 13A, the positional relationship of the first lens member 13A with respect to the substrate 24A can be made even more appropriate.

[0086] The second lens member 14A is provided on the upper side in the vertical direction, corresponding to the four second light sources 22A of the light source unit 12A, and is made of transparent resin. This second lens member 14A is an optical lens that guides the light emitted from each second light source 22A inward and cooperates with the projection lens 16A to form a second light distribution pattern. As shown in Figures 19 to 21, the second lens member 14A has four second incident portions 41A on the upper side in the vertical direction. Each second incident portion 41A has the same configuration as each second incident portion 41.

[0087] Similar to the second lens member 14, the second lens member 14A directs the parallel light incident from each second incident portion 41A toward the second emission portion 45A located on the front side in the front-rear direction. The second emission portion 45A emits the incident light toward the front side in the front-rear direction from the second emission surface 46A at its protruding end.

[0088] The second lens member 14A is provided with four positioning protrusions 14Ac and four abutment points 14Ad. The four positioning protrusions 14Ac are located at the four corners surrounding the four second incident portions 41A and protrude columnarly toward the rear in the front-rear direction. Each positioning protrusion 14c can be fitted into each positioning hole 24a of the substrate 24A, and in this fitted state, it can be passed through the positioning through hole 11Ad of the main body portion 11Aa of the mounting member 11A. By fitting each positioning protrusion 14Ac into its corresponding positioning hole 24Aa, the position and orientation of the second lens member 14A and the substrate 24A in the width direction and vertical direction can be determined. Therefore, each positioning protrusion 14Ac works in cooperation with each positioning through hole 11Ad to function as a second substrate-side positioning mechanism that positions the second lens member 14A and the substrate 24A in the orthogonal direction.

[0089] Each abutment point 14Ad is located near each positioning projection 14Ac. Each abutment point 14Ad protrudes to the rear in the front-rear direction, and its rear end is flat. Each abutment point 14Ad can simultaneously abut against the substrate 24A while the second lens member 14A and the substrate 24A are positioned by each positioning projection 14Ac. By abutting against the substrate 24A, each abutment point 14Ad can make the front-rear positional relationship of the second lens member 14A with respect to the substrate 24A appropriate. In particular, since each abutment point 14Ad in Embodiment 1 is located at the four corners of the second lens member 14A, the positional relationship of the second lens member 14A with respect to the substrate 24A can be made more appropriate.

[0090] As shown in Figures 14, 15, and 22, the first frame member 15A is annular in shape, surrounding the first lens member 13A and the second lens member 14A. That is, the first frame member 15A is capable of receiving the first lens member 13A and the second lens member 14A when they are arranged vertically. An opening 51A is provided on the upper side of the first frame member 15A in the vertical direction. The opening 51A penetrates the first frame member 15A in the front-to-back direction, and is capable of positioning the first emission surface 38A of the first lens member 13A and the second emission surface 46A of the second lens member 14A, which are arranged vertically, inward. Therefore, the opening 51A is capable of allowing light passing through the first emission surface 38A and light passing through the second emission surface 46A to pass through, corresponding to the light passing through the first lens member 13A and the second lens member 14A.

[0091] The first frame member 15A is provided with six screw projections 15Aa and two positioning projections 15Ab on its rear surface in the front-rear direction. The six screw projections 15Aa are provided in three locations each near both ends in the width direction of the first frame member 15A, near both ends in the vertical direction, and at intermediate positions. Each screw projection 15Aa is columnar in shape, protruding to the rear in the front-rear direction, with a flat abutment point 15Ac at its tip, and a screw hole 15Af at its center. The abutment points 15Ac are positioned on equal planes perpendicular to each other in the front-rear direction, allowing them to abut against the base plate 24A simultaneously. The screw holes 15Af allow the fastening member 18 to be screwed in. Each of these screw projections 15Aa is positioned in a manner corresponding to the six screw holes 11Ac in the main body 11Aa of the mounting member 11A and the six screw holes 24Ab in the base plate 24A.

[0092] The two positioning protrusions 15Ab are located near both ends in the width direction on the periphery of the opening 51A and protrude columnarly toward the rear in the front-rear direction. Each positioning protrusion 15Ab can be fitted into each frame positioning hole 24Ac of the substrate 24A, and in this fitted state, it can be passed through the frame positioning through hole 11Af of the main body portion 11Aa of the mounting member 11A. By fitting each of these positioning protrusions 15Ab into their respective frame positioning holes 24Ac, the position and orientation of the first frame member 15A and the substrate 24A in the width direction and vertical direction can be determined. Therefore, each frame positioning hole 24Ac functions as a frame positioning mechanism that positions the first frame member 15A and the substrate 24A in the orthogonal direction.

[0093] Each screw projection 15Aa is positioned by the frame positioning mechanism, and by abutting each abutment point 15Ac against the substrate 24A, the front-to-back positional relationship of the first frame member 15A with respect to the substrate 24A can be made appropriate. In particular, in Embodiment 1, each abutment point 15Ac is located at the four corners on the periphery of the first frame member 15A and in the spaces between them, so the positional relationship of the first frame member 15A with respect to the substrate 24A can be made even more appropriate. In this state, as shown in Figures 14 and 15, each screw projection 15Aa allows the fastening member 18 to be screwed into the screw hole 15Af from the rear in the front-to-back direction, with the first lens member 13A, the second lens member 14A and the substrate 24A positioned between the first frame member 15A and the mounting member 11A (its main body portion 11Aa).

[0094] Furthermore, as shown in Figure 22, the first frame member 15A is provided with two lens support edges 15Ar on its rear surface in the front-rear direction. The two lens support edges 15Ar are provided so as to sandwich the opening 51A in the width direction and are plate-shaped, extending in the vertical direction and protruding to the rear in the front-rear direction. Each lens support edge 15Ar is provided with a second lens support surface 15As and a first lens support surface 15At. Both second lens support surfaces 15As are located on the upper side in the vertical direction and are the front surface in the front-rear direction of the second lens member 14A, and can be positioned on both sides that sandwich the second emission surface 46A in the width direction. Both first lens support surfaces 15At are located on the lower side in the vertical direction and are the front surface in the front-rear direction of the first lens member 13A, and can be positioned on both sides that sandwich the first emission surface 38A in the width direction. These two first lens support surfaces 15At are located in front of the two second lens support surfaces 15As in the front-rear direction.

[0095] Furthermore, as shown in Figure 14, the first frame member 15A is provided with two screw holes 15Ag, four lens receiving points 15Ah, and two projection positioning protrusions 15Ak on its front surface in the front-to-back direction. The two screw holes 15Ag are positioned to sandwich the opening 51A in the width direction. Each screw hole 15Ag has a screw thread in the center, allowing the fastening member 19 to be screwed in from the front in the front-to-back direction.

[0096] The four lens support points 15Ah are arranged in pairs vertically, with the opening 51A flanked by the lens support points 15Ah in the width direction. Each lens support point 15Ah is formed to protrude forward in the front-to-back direction, and its protruding end is flat. Each of these lens support points 15Ah is designed to accommodate the flange portion 16Aa of the projection lens 16A, which will be described later. By abutting each lens support point 15Ah against the flange portion 16Aa, the front-to-back positional relationship of the projection lens 16A with respect to the first frame member 15A can be made appropriate.

[0097] The two projection positioning protrusions 15Ak are located in the middle of the four lens receiving points 15Ah, which are arranged vertically, and protrude columnarly towards the front in the front-to-back direction. Each projection positioning protrusion 15Ak can be fitted into the respective positioning holes 16Ab of the projection lens 16A, which will be described later. By fitting each projection positioning protrusion 15Ak into its corresponding positioning hole 16Ab, the position and orientation of the first frame member 15A and the projection lens 16A in the width direction and vertical direction can be determined.

[0098] As shown in Figures 14 and 15, the projection lens 16A is provided on the front side in the front-rear direction of the opening 51A of the first frame member 15A. This projection lens 16A is a molded product made of resin material. The projection lens 16A projects light passing through the opening 51A, that is, light emitted from the first emission surface 38 and light emitted from the second emission surface 46, toward the front of the vehicle, forming a predetermined light distribution pattern.

[0099] The projection lens 16A projects the shape of the upper internal reflective surface 36, including the cutoff edge 36a, onto a screen where a horizontal line and a vertical line intersect, with the projection optical axis as the origin, by irradiating it with light from the first emission surface 38A. As a result, the projection lens 16A can form a passing light distribution pattern on the screen that has a cutoff line on the projection optical axis, making the area near the projection optical axis the brightest while illuminating a large area in the width direction below the cutoff line. Furthermore, by irradiating it with light from the second emission surface 46, the projection lens 16A can form a driving light distribution pattern on the screen that partially overlaps with the upper end of the passing light distribution pattern and illuminates the upper part of the passing light distribution pattern.

[0100] Therefore, in the vehicle lighting fixture 10A, the five first light sources 21A of the light source unit 12A, the first lens member 13A, and the projection lens 16A function as a first low-beam unit 63A which forms a passing light distribution pattern as a first light distribution pattern. In addition, in the vehicle lighting fixture 10A, the four second light sources 22A of the light source unit 12A, the second lens member 14A, and the projection lens 16A function as a second high-beam unit 64A which forms a driving light distribution pattern as a second light distribution pattern.

[0101] The projection lens 16A is provided with a flange portion 16Aa. This flange portion 16Aa is provided on both sides in the width direction of the projection surface of the projection lens 16A, and can be fitted to each lens receiving portion 15Ah of the first frame member 15A. Positioning holes 16Ab are provided on both sides in the width direction of the flange portion 16Aa. One of the positioning holes 16Ab is formed by penetrating the flange portion 16Aa, and the other is formed by partially cutting out the flange portion 16Aa. The projection lens 16A is also provided with a butt portion 16Ac. This butt portion 16Ac is provided on both sides in the vertical direction of the projection surface of the projection lens 16A, and can be fitted to each lens retaining portion 17Ad of the second frame member 17A.

[0102] The second frame member 17A is annular in shape and surrounds the emission surface of the projection lens 16A. This second frame member 17A is provided with a projection opening 17Aa, a flange portion 17Ab, and two screw holes 17Ac. The projection opening 17Aa penetrates the second frame member 17A in the front-to-back direction and is capable of receiving the emission surface of the projection lens 16 so as to surround it (see Figure 13). Therefore, the projection opening 17Aa can allow light passing through the projection lens 16A to pass through.

[0103] The flange portion 17Ab surrounds the projection opening 17Aa and protrudes in the width direction and vertical direction. Both sides of the flange portion 17Ab in the width direction can be positioned against the flange portion 16Aa of the projection lens 16A from the front in the front-to-back direction. In addition, both sides of the flange portion 17Ab in the vertical direction partially protrude to the front in the front-to-back direction, forming the lens retaining portion 17Ad. Each of these lens retaining points 17Ad can be positioned against the abutment portion 16Ac of the projection lens 16A from the front in the front-to-back direction.

[0104] The two screw holes 17Ac are positioned to protrude from both side edges in the width direction of the flange portion 17Ab. Each of these screw holes 17Ac is positioned in a manner corresponding to each screw hole 15Ag of the first frame member 15A, and it is possible to pass a fastening member 19 that is screwed into each of these screw holes 15Ag through them.

[0105] The vehicle light fixture 10A is assembled as shown in Figures 14 and 15. First, the first lens member 13A and the second lens member 14A are positioned within the opening 51A of the first frame member 15A, with the first emission part 37A and the second emission part 45A aligned vertically, from the rear in the front-rear direction. At this time, the front surface of the first lens member 13A is aligned with the first lens support surface 15At of the lens support edge 15Ar, and the front surface of the second lens member 14A is aligned with the second lens support surface 15As of the lens support edge 15Ar. This ensures that the front-rear positional relationship between the first lens member 13A and the second lens member 14A and the first frame member 15A is appropriate.

[0106] Subsequently, the light source unit 12A, attached to the mounting member 11A, is positioned against the first lens member 13A and the second lens member 14A, which are maintaining the above state, from the rear in the front-rear direction. At this time, the positional relationship of the substrate 24A of the light source unit 12A with respect to the first lens member 13A is correct, as each positioning projection 13Ab of the first lens member 13A is fitted into each positioning hole 24Aa and each abutment point 13Ac of the first lens member 13A is abutted against the substrate 24A. Furthermore, the positional relationship of the substrate 24A with respect to the second lens member 14A is correct, as each positioning projection 14Ac of the second lens member 14A is fitted into each positioning hole 24Aa and each abutment point 14Ad of the second lens member 14A is abutted against the substrate 24A. Furthermore, the positional relationship of the substrate 24A to the first frame member 15A is appropriate when the positioning protrusions 15Ab of the first frame member 15A are fitted into the positioning holes 24Ac for each frame, and when the abutting points 15Ac of the first frame member 15A are abutted against the substrate 24A.

[0107] Here, each positioning projection 13Ab, each positioning projection 14Ac, and each positioning projection 15Ab partially penetrates the substrate 24A and protrudes to the rear in the front-rear direction. However, since the main body portion 11Aa of the mounting member 11A is provided with a positioning through hole 11Ad and a frame positioning through hole 11Af, interference with the main body portion 11Aa is prevented. Furthermore, in the vehicle lamp 10A of Embodiment 1, positioning is performed by three components: the substrate 24A and the first lens member 13A, the substrate 24A and the second lens member 14A, and the first frame member 15A and the substrate 24A. However, the first lens member 13A and the second lens member 14A are not positioned in a direction perpendicular to the first frame member 15A. This allows the first frame member 15A, the first lens member 13A, the second lens member 14A, and the substrate 24A to be assembled while being positioned as described above.

[0108] Subsequently, in that positioned state, the six fastening members 18 are screwed from the rear side in the front-rear direction through the six screw holes 11Ac of the main body 11Aa and the six screw holes 24Ab of the substrate 24A into the screw holes 15Af of the six screw projections 15Aa of the first frame member 15A. As a result, the first lens member 13A and the second lens member 14A are attached to the substrate 24A (light source unit 12A) together with the mounting member 11A, sandwiched between the first frame member 15A and the substrate 24A.

[0109] Next, from the front in the front-to-back direction, the projection positioning protrusions 15Ak are fitted into the positioning holes 16Ab, and the flange portions 16Aa are positioned against the lens receiving points 15Ah, thereby positioning the projection lens 16A in front of the first frame member 15A. Then, from the front in the front-to-back direction, the flange portion 17Ab is positioned against the flange portion 16Aa, and the lens retaining points 17Ad are positioned against the abutment portions 16Ac, so that the projection surface of the projection lens 16A is inserted into the projection opening 17Aa, and the second frame member 17A is positioned on top of the projection lens 16A. In this stacked state, the two fastening members 19 are screwed into the two screw holes 15Ag of the first frame member 15A from the front in the front-to-back direction, passing through the screw holes 17Ac as appropriate. As a result, the projection lens 16A is mounted sandwiched between the first frame member 15A and the second frame member 17A. As a result, the light source unit 12A, along with the mounting member 11A, is assembled with the first lens member 13A, the second lens member 14A, the first frame member 15A, the projection lens 16A, and the second frame member 17A to form a vehicle lamp 10A.

[0110] In the vehicle lighting unit 63A, the low beam unit 10A can form a passing light distribution pattern by illuminating five first light sources 21A, causing the light from each source to be emitted from the first lens member 13A and projected by the projection lens 16A. In addition, in the high beam unit 64A of the vehicle lighting unit 10A, the high beam unit 64A can form a driving light distribution pattern by illuminating four second light sources 22A, causing the light from each source to be emitted from the second lens member 14A and projected by the projection lens 16A, partially overlapping with the upper end of the passing light distribution pattern and illuminating the upper part of the passing light distribution pattern.

[0111] The vehicle lighting fixture 10A of Embodiment 2 can obtain the following effects. Since this vehicle lighting fixture 10A has basically the same configuration as the vehicle lighting fixture 10 of Embodiment 1, it can obtain the same effects as Embodiment 1.

[0112] Even when the first lens member 13A and the second lens member 14A are arranged side by side in the width direction, the vehicle light fixture 10A can be supported by being sandwiched between the first frame member 15A and the substrate 24A. Therefore, the vehicle light fixture 10A can minimize the number of parts required for fixing, simplify the assembly process, and minimize the impact of dimensional variations.

[0113] Therefore, the vehicle lighting device 10A of Embodiment 2 according to this disclosure allows for an appropriate positional relationship between two lenses (first lens member 13, second lens member 14) and the first light source 21 and the second light source 22 with a simple configuration.

[0114] Although the vehicle lighting devices of this disclosure have been described above based on each embodiment, the specific configuration is not limited to each embodiment, and changes or additions to the design are permitted as long as they do not deviate from the gist of the invention as described in each claim of the patent claims.

[0115] In the embodiments described above, the first unit is a low-beam unit 63, 63A, and the second unit is a high-beam unit 64, 64A. However, it is sufficient for the two units to form a first and second light distribution pattern, and the configuration is not limited to each embodiment. For example, the first light distribution pattern may be a light distribution pattern for driving and the second light distribution pattern may be a light distribution pattern for passing other vehicles, or they may each be other light distribution patterns.

[0116] Furthermore, in the embodiments described above, five first light sources 21 were provided in the low-beam units 63 and 63A, and four second light sources 22 were provided in the high-beam units 64 and 64A. However, the number of each light source can be set as appropriate, and the configuration is not limited to the embodiments described above.

[0117] Furthermore, in the embodiments described above, the first lens members 13 of the low-beam units 63 and 63A were provided with first incident portions 31 and 31A on the lower side relative to the first emission portions 37 and 37A. However, they may be on the upper side or in other directions, and the configuration is not limited to the embodiments described above. [Explanation of symbols]

[0118] 10, 10A Vehicle lighting fixture 11, 11A Mounting member (as an example of a heat dissipation member) 11e Notch 13, 13A First lens member 13a Positioning hole (as an example of a first frame-side positioning mechanism) 13b Positioning projection (as an example of a first substrate-side positioning mechanism) 14, 14A Second lens member 14b Positioning hole (as an example of a second frame-side positioning mechanism) 14c Positioning projection (as an example of a second substrate-side positioning mechanism) 15, 15A First frame member 16, 16A Projection lens 17, 17A Second frame member 18, 18A Fastening member 21, 21A First light source 22, 22A Second light source 24, 24A Substrate

Claims

1. A first lens member that emits light from a first light source to form a first light distribution pattern, A second lens member that emits light from a second light source to form a second light distribution pattern, A substrate on which the first light source and the second light source are provided, The first lens member and the second lens member are arranged side by side in an orthogonal direction perpendicular to the optical axis, allowing light passing through the first lens member and light passing through the second lens member, and the first frame member surrounds the first lens member and the second lens member. A vehicle lamp characterized in that the first frame member is attached to the substrate in such a manner that it sandwiches and supports the first lens member and the second lens member between itself and the substrate in the optical axis direction.

2. The vehicle light fixture according to claim 1, characterized in that the first frame member and the substrate are assembled by fastening members that engage with the first frame member through the substrate.

3. The first lens member has a first frame-side positioning mechanism for positioning it in the orthogonal direction with respect to the first frame member, and a first substrate-side positioning mechanism for positioning it in the orthogonal direction with respect to the substrate, The second lens member has a second frame-side positioning mechanism for positioning it in the orthogonal direction with respect to the first frame member, and a second substrate-side positioning mechanism for positioning it in the orthogonal direction with respect to the substrate, The vehicle lamp according to claim 1, characterized in that the first substrate-side positioning mechanism has a looser degree of positioning compared to the first frame-side positioning mechanism, the second frame-side positioning mechanism, and the second substrate-side positioning mechanism.

4. The first lens member has a first frame-side positioning mechanism for positioning it in the orthogonal direction with respect to the first frame member, and a first substrate-side positioning mechanism for positioning it in the orthogonal direction with respect to the substrate, The second lens member has a second frame-side positioning mechanism for positioning it in the orthogonal direction with respect to the first frame member, and a second substrate-side positioning mechanism for positioning it in the orthogonal direction with respect to the substrate, The vehicle lamp according to claim 1, characterized in that the first frame-side positioning mechanism has a looser degree of positioning compared to the first substrate-side positioning mechanism, the second frame-side positioning mechanism, and the second substrate-side positioning mechanism.

5. The vehicle lamp according to claim 3 or 4, characterized in that the first light distribution pattern is a passing light distribution pattern having a cutoff line.

6. The substrate is provided in surface contact with a heat dissipation member that dissipates heat, The vehicle light fixture according to claim 3 or 4, characterized in that the heat dissipation member is provided with a notch that exposes a part of the substrate in the orthogonal direction.

7. Furthermore, the device includes a projection lens that projects light emitted from the first lens member and light emitted from the second lens member, and a second frame member for fixing the projection lens. The vehicle lamp according to claim 1, characterized in that the second frame member is attached to the first frame member in such a state that it sandwiches and supports the projection lens between itself and the first frame member in the optical axis direction.

8. The vehicle lighting device according to claim 1, characterized in that the substrate has the first light source provided on the lower side in the vertical direction and the second light source provided on the upper side in the vertical direction.

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