Vehicle lighting tool

Abstract

To provide a vehicle lighting tool which can emit light in a linear range (a whole area of a second light emission surface) including a range outside of an outer contour of a first light emission surface in a front view.SOLUTION: A vehicle lighting tool includes: a light source 13a; and a light guiding body 13b that guides light emitted from the light source. The light guiding body includes: a cap-like light incident part 70 having a center incident surface 71 arranged on a front side of the light source, a peripheral incident surface 72 extending from an outer peripheral edge of the center incident surface toward the light source side, and a first peripheral reflective surface 73A and a second peripheral reflective surface 73B arranged outside of the peripheral incident surface; a first light emitting surface 80; and a second light emitting surface 90. The center incident surface is arranged on a rear side of the first light emitting surface. The first peripheral reflective surface is arranged on a rear side of the first light emitting surface. The second peripheral reflective surface is arranged on a rear side of the second light emitting surface, and includes a range protruded from an outer contour of the first light emitting surface in a front view.SELECTED DRAWING: Figure 19

Description

[Technical field]

[0001] The present disclosure relates to a vehicle lamp. [Background technology]

[0002] A vehicle lamp is known that includes a light guide (lens) that includes circular light exit surfaces and is configured to guide light from a light source and emit the light from the circular light exit surfaces (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-034309 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the vehicle lamp described in Patent Document 1, although it is possible to emit light in a circular range from which light is emitted from the light source, there is a problem in that it is not possible to emit light in a linear range that includes an area that extends beyond the outline of the circular light-emitting surface when viewed from the front.

[0005] The present disclosure has been made to solve such problems, and aims to provide a vehicle lamp that, when viewed from the front, can emit light from a first light-emitting surface (e.g., a circular light-emitting surface) and a linear area (the entire area of ​​the second light-emitting surface) that includes an area extending beyond the outline of the first light-emitting surface. [Means for solving the problem]

[0006] A vehicle lamp according to the present disclosure includes a light source and a light guide that guides light emitted by the light source, the light guide including a cap-shaped light entrance portion including a central light entrance surface disposed in front of the light source, a peripheral light entrance surface extending from an outer periphery of the central light entrance surface toward the light source side, and a first peripheral reflective surface and a second peripheral reflective surface disposed outside the peripheral light entrance surface, a first light exit surface, and a second light exit surface, the central light entrance surface is disposed behind the first light exit surface such that a first light from the light source that enters through the central light entrance surface is guided inside the light guide and exits from the first light exit surface, and the first peripheral reflective surface is disposed behind the peripheral light entrance surface. the second light exit surface is configured as a linear light exit surface that includes an area extending beyond the outer shape of the first light exit surface when viewed from the front, and the second peripheral reflective surface is disposed behind the second light exit surface so that a third light, of the light from the light source that enters through the peripheral light entrance surface, that is totally reflected by the second peripheral reflective surface is guided inside the light guide and exits from the second light exit surface, and includes an area extending beyond the outer shape of the first light exit surface when viewed from the front.

[0007] With this configuration, when viewed from the front, it is possible to emit light from the first light-emitting surface (e.g., a circular light-emitting surface) and from a linear area (the entire second light-emitting surface) including an area extending beyond the outer shape of the first light-emitting surface, for example, an area extending inside in the vehicle width direction and an area extending outside in the vehicle width direction.

[0008] This is mainly due to the fact that the lamp comprises a linear second light-emitting surface that includes an area extending beyond the outline of the first light-emitting surface when viewed from the front, and a second peripheral reflective surface that is arranged behind the second light-emitting surface and includes an area extending beyond the outline of the first light-emitting surface when viewed from the front.

[0009] In the above-mentioned vehicle lamp, the first light exit surface is configured as a circular light exit surface having a portion cut out by the second light exit surface when viewed from the front, and the second light exit surface is configured as a linear light exit surface including a range that protrudes inward in the vehicle width direction from the outer shape of the first light exit surface and a range that protrudes outward in the vehicle width direction when viewed from the front, the first surrounding reflective surface is disposed inside the outer shape of the first light exit surface when viewed from the front, and the second surrounding reflective surface may include a range that protrudes inward in the vehicle width direction from the outer shape of the first light exit surface and a range that protrudes outward in the vehicle width direction when viewed from the front.

[0010] In addition, in the above vehicle lamp, the light guide may further include an extended light guiding portion extending forward from the first light exit surface, and the second light exit surface may be provided at a tip end of the extended light guiding portion.

[0011] In the above vehicle lamp, the second light exiting surface may include a lens cut that controls the third light exiting from the second light exiting surface.

[0012] In addition, in the above-mentioned vehicular lamp, the light guide may further include an additional light guiding section that guides a fourth light from the light source that does not enter the light entrance section to the second light exit surface so that the fourth light is emitted from the second light exit surface. Effect of the Invention

[0013] The present disclosure makes it possible to provide a vehicle lamp that, when viewed from the front, can emit light from a first light-emitting surface (e.g., a circular light-emitting surface) and a linear area (the entire area of ​​the second light-emitting surface) including an area extending beyond the outline of the first light-emitting surface. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a front view of a mirror body 20 to which a lamp unit 10 is attached. [Diagram 2] 2 is an exploded perspective view of the lamp unit 10 and the mirror body 20. FIG. [Diagram 3] 2 is a cross-sectional view taken along line AA in FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view of FIG. [Diagram 5] FIG. 2 is an exploded perspective view of the lamp unit 10. [Figure 6] FIG. 2 is a perspective view of the lighting unit 10. [Figure 7] 1A to 1D are diagrams for explaining a method for mounting the lamp unit. [Figure 8] 4 is a flowchart of a lamp unit mounting method. [Figure 9] 10A to 10C are diagrams for explaining the effect of the lamp unit mounting structure of the present embodiment. [Figure 10] This is a first modified example of the outer shape of the outer lens body 121. [Figure 11] 2 shows a second modified example of the outer shape of the outer lens body 121. [Figure 12] 10 is a modified example of the lighting unit 10. [Figure 13] 2 is a front view of a light guide 13b that constitutes the lighting unit 10. FIG. [Figure 14] FIG. 14 is a simplified diagram of FIG. [Figure 15] FIG. 2 is a top view of a substrate 13c on which a light source 13a is mounted and a light guide 13b. [Figure 16] FIG. 2 is a perspective view of the vicinity of the optical system A1. [Figure 17] FIG. 11 is a rear view of the light guide 13b. [Figure 18] Figure 14 is a perspective view in which hatched areas HT1 to HT6 (second peripheral reflecting surfaces 73B that constitute the light entrance section 70, seen through when viewed from the front) and hatched area HT7 (reflecting surface 110b that constitutes the additional light guiding section 110, seen through when viewed from the front) are drawn. [Figure 19] 18(a), (b) and (c) are cross-sectional views taken along the lines AA and CC in FIG. 18(a), (b) and (c) in FIG. 18(b), respectively. [Figure 20] FIG. 19 is a cross-sectional view taken along the line DD in FIG. [Figure 21] FIG. 11 is a front view of a light guide 13b using a second light exit surface 90A (modified example). [Figure 22]FIG. 11 is a front view of a light guide 13b using a first light output surface 80A (modified example). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a lamp unit mounting structure according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. In each drawing, corresponding components are designated by the same reference numerals, and duplicated description will be omitted.

[0016] The lamp unit mounting structure of this embodiment is a structure for mounting a lamp unit to a lamp unit mounting partner. Hereinafter, an example will be described in which a lamp unit 10 that functions as a turn lamp (vehicle signal lamp) is used as the lamp unit, and a mirror body 20 is used as the lamp unit mounting partner.

[0017] Fig. 1 is a front view of a mirror body 20 to which a lamp unit 10 is attached. Fig. 2 is an exploded perspective view of the lamp unit 10 and the mirror body 20. Fig. 3 is a cross-sectional view taken along line AA in Fig. 1. Fig. 4 is a cross-sectional view taken along line BB in Fig. 1.

[0018] Although not shown, the mirror body 20 to which the lamp unit 10 is attached is attached via stays to both the left and right sides of a vehicle such as a motorcycle (for example, a front cowl). Since the mirror bodies 20 (and the lamp units 10) attached to both the left and right sides have a symmetrical configuration, the following will representatively explain the mirror body 20 (and the lamp unit 10) attached to the left side of the vehicle (the left side when facing the front of the vehicle).

[0019] 2 to 4, the mirror body 20 is formed with a recess 21 recessed from the vehicle front side (front side) toward the vehicle rear side (rear side), into which the lamp unit 10 is inserted from the vehicle front side (front side). An arrow Ar1 in Figs. 2 to 4 indicates the insertion direction (mounting direction) of the lamp unit 10. A lamp unit mounting method for mounting the lamp unit 10 to the mirror body 20 will be described later.

[0020] FIG. 5 is an exploded perspective view of the lamp unit 10. As shown in FIG.

[0021] As shown in Figures 3 to 5, the lighting unit 10 includes a housing 11 arranged on the rear side of the vehicle, an outer lens 12 (an example of a translucent cover of the present disclosure) arranged on the front side of the vehicle, and an optical system 13 arranged within a lamp chamber S1 (see Figures 3 and 4) formed by the housing 11 and the outer lens 12.

[0022] First, the outer lens 12 will be described.

[0023] The outer lens 12 is made of a transparent resin such as acrylic or polycarbonate. As shown in Fig. 3 and Fig. 4, the outer lens 12 includes an outer lens main body 121 and an outer lens side flange portion F disposed behind the outer periphery of the outer lens main body 121 when viewed from the front. 12 The outer lens 12 includes an outer lens side flange portion F 12 (All around) and housing flange F 11 (all around) to form a lamp chamber S1 between the housing 11 (housing main body 111). The joining is, for example, by welding (e.g., vibration welding) or adhesion. An example in which the joining is by welding will be described below. In addition, reference numeral 30 in FIG. 3 indicates a stay for attaching the mirror body 20 to which the lamp unit 10 is attached to the vehicle side. In addition, reference numeral 40 in FIG. 4 indicates a housing attached to the mirror body 20, and reference numeral 50 indicates a mirror attached to the housing 40.

[0024] As shown in Fig. 1, the outer shape of the outer lens body 121 is a pentagonal shape including an upper oblique side portion 12a, a lower oblique side portion 12b, an inner oblique side portion 12c, an outer oblique side portion 12d, and a connecting side portion 12e connecting the lower oblique side portion 12b and the inner oblique side portion 12c in a front view. As shown in Fig. 3, the outer lens body 121 is arranged in a state in which its upper portion is inclined backward in a vertical cross section. Also, as shown in Fig. 4, the outer lens body 121 is configured in a shape curved backward as it goes outward in the vehicle width direction in a horizontal cross section.

[0025] Outer lens flange F 12 is the upper flange part F 12a (See Figure 3) Inner flange part F 12c (See Figure 4) Upper flange part F 12a The inner flange portion F protrudes from a region along the upper oblique side portion 12a of the outer periphery of the rear surface of the outer lens 12 toward the housing 11 (rear side of the vehicle) (see FIG. 3). 12c protrudes toward the housing 11 (rear of the vehicle) from a region along the inner oblique side portion 12c of the outer periphery of the rear surface of the outer lens 12 (see FIG. 4).

[0026] In addition, the outer lens flange F 12 is the lower flange part F 12b (See Figure 3 and Figure 6) Outer flange part F 12d (See Figure 6) and connecting flange F 12e (not shown) Lower flange part F 12b The extension portion E extends from the area along the lower oblique side portion 12b of the outer peripheral portion of the back surface of the outer lens 12 toward the housing 11 side (the rear side of the vehicle). 12b On the other hand, the outer flange portion F 12d The extension portion E extends from a region along the outer oblique side portion 12d of the outer peripheral portion of the back surface of the outer lens 12 toward the housing 11 side (the rear side of the vehicle). 12d (See FIG. 6.) Although not shown, the connecting flange portion F 12e is an extension portion E extending from a region along the connecting side portion 12e of the outer periphery of the back surface of the outer lens 12 toward the housing 11 side (the rear side of the vehicle). 12e It is provided at the tip of the.

[0027] As shown in Figure 3, the lower flange F 12b In the vertical section, the upper flange part F 12a It is located a distance L1 toward the rear of the vehicle.

[0028] FIG. 6 is a perspective view of the lamp unit 10. As shown in FIG.

[0029] As shown in Figure 6, the extension E 12b The width L2 (between the lower oblique side portion 12b and the lower flange portion F 12b 3 and 6) is approximately constant between one end and the other end of the lower oblique side portion 12b (see the range indicated by reference symbol A1 in FIG. 1).

[0030] On the other hand, extension E 12d Width L3 (between outer oblique side 12d and outer flange F 12d The distance between the outer oblique side portion 12d and the outer oblique side portion 12c (see the range indicated by the reference symbol A2 in FIG. 1) is not constant between one end and the other end of the outer oblique side portion 12d, but gradually narrows from the one end side (the lower end side in FIG. 1 and FIG. 6) to the other end side (the upper end side in FIG. 1 and FIG. 6). 12e The width L4 (between the connecting side portion 12e and the connecting flange portion F 12e The distance between the connecting edge 12e and the other end (see the range indicated by the symbol A3 in FIG. 1) is not constant between one end and the other end of the connecting edge 12e, but gradually narrows from the one end side (lower end side) of the connecting edge 12e to the other end side (upper end side).

[0031] Above upper flange part F 12a , Lower flange part F 12b , inner flange part F 12c , outer flange part F 12d and connecting flange part F 12e are connected to each other, and the annular outer lens side flange portion F 12 It is composed of:

[0032] Next, the housing 11 will be described.

[0033] The housing 11 is made of an opaque resin. As shown in Fig. 3 and Fig. 4, the housing 11 includes a housing body 111 and a housing side flange portion F that protrudes outward from an opening end 111a of the housing body 111. 11 Including,

[0034] Housing body 111 includes an open end 111a disposed on the vehicle front side, a bottom portion 111b closing the vehicle rear side, and a cylindrical side wall 111c connecting open end 111a and bottom portion 111b.

[0035] Housing side flange F 11 is the upper flange part F 11a (See Figure 3) Lower flange F 11b (See Figure 3) Inner flange part F 11c (See Figure 4) Outer flange part F 11d (See Figure 4) and connecting flange F 11e (not shown).

[0036] Upper flange part F 11a The outer lens flange F 12 Upper flange part F 12a (See Fig. 3.) Similarly, the lower flange F 11b The outer lens flange F 12 Lower flange part F 12b (See Fig. 3.) Similarly, the inner flange part F 11c The outer lens flange F 12 Inner flange part F 12c (See Fig. 4) Similarly, the outer flange part F 11d The outer lens flange F 12 Outer flange part F 12d (See FIG. 4.) Although not shown, the connecting flange portion F 11e The outer lens flange F 12 Connection flange part F 12e is welded.

[0037] As shown in Figure 3, the lower flange F 11b In the vertical section, the upper flange part F 11a It is located a distance L1 toward the rear of the vehicle.

[0038] Above upper flange part F 11a , Lower flange part F 11b , inner flange part F 11c , outer flange part F11d and the connecting flange portion F 11e are connected to each other to form an annular housing-side flange portion F 11 .

[0039] As shown in FIG. 6, the housing-side flange portion F 11 is provided with positioning ribs R that abut against the inner wall 21c of the recess 21 formed in the mirror body 20. The positioning ribs R are provided at a plurality of positions (for example, four positions) in the circumferential direction of the housing-side flange portion F 11 . In FIG. 6, only two of the positioning ribs R are shown.

[0040] The outer lens 12 and the housing 11 having the above configuration are combined by welding (for example, vibration welding) the outer lens-side flange portion F 12 (entire circumference) and the housing-side flange portion F 11 (entire circumference) to each other, thereby forming a lamp chamber S1 (see FIGS. 3 and 4).

[0041] The outer lens-side flange portion F 12 (entire circumference) and the housing-side flange portion F 11 (entire circumference) are welded to each other to form an annular welded portion B (see FIGS. 2 and 3). This annular welded portion B includes a pair of welded portions Ba, Bb (see FIG. 3) that face each other with the lamp chamber S1 interposed therebetween.

[0042] As shown in FIG. 3, in a longitudinal section, the lower welded portion Bb (an example of one welded portion of the present disclosure) disposed below among the pair of welded portions Ba, Bb is disposed on the vehicle rear side with respect to the upper welded portion Ba (an example of the other welded portion of the present disclosure) disposed above. The upper welded portion Ba is a portion where the upper flange portion F 11a and the upper flange portion F 12a are welded to each other. On the other hand, the lower welded portion Bb is a portion where the lower flange portion F 11b and the lower flange portion F 12b are welded to each other.

[0043] Next, the optical system 13 will be described.

[0044] As shown in FIG. 3 and FIG. 4, the optical system 13 is disposed in a lamp chamber S1 constituted by the outer lens 12 and the housing 11. The optical system 13 may have any configuration as long as it is an optical system that irradiates light that passes through the outer lens 12 and functions as a turn lamp. For example, the optical system 13 may be a light source 13a (e.g., a semiconductor light-emitting element such as an LED) and an optical member 13b (e.g., a lens) that controls the light emitted by the light source 13a. The light source 13a may be one or more. Similarly, the optical member 13b may be one or more. The light source 13a is mounted on a substrate 13c and attached to, for example, the housing 11. Similarly, the optical member 13b is attached to, for example, the housing 11.

[0045] The lamp unit 10 having the above-mentioned configuration is inserted into a recess 21 formed in a mirror body 20 from the front side of the vehicle and attached to the mirror body 20.

[0046] The method for mounting this lamp unit will now be described.

[0047] Figures 7(a) to 7(d) are diagrams for explaining a method for mounting the lamp unit, and Figure 8 is a flowchart of the method for mounting the lamp unit.

[0048] First, the lamp unit 10 is inserted into the recess 21 from the front side of the vehicle until the upper welded part Ba (an example of the other welded part in this disclosure) abuts against the open end 21a of the recess 21 formed in the mirror body 20 (step S10, see Figs. 7(a) and 7(b)). The arrow Ar1 in Figs. 7(a) and 7(b) indicates the insertion direction (attachment direction) of the lamp unit 10. At that time, the lamp unit 10 is slid in the direction of the arrow Ar1 with the upper wall 111c1 of the housing 11 and the upper inner wall 21c1 of the recess 21 in contact with each other.

[0049] Next, the lamp unit 10 is moved toward the cutout portion S2 until the lower welded portion Bb (an example of one welded portion in the present disclosure) is inserted into the cutout portion S2 (an example of a space in the present disclosure) formed in the inner wall 21c (lower inner wall 21c2) of the recess 21 formed in the mirror body 20 (step S11, see FIG. 7(c)). An arrow Ar2 in FIG. 7(c) indicates the moving direction of the lamp unit 10.

[0050] Next, the lamp unit 10 is further inserted into the recess 21 until the outer lens body 121 is inserted into the opening end 21a of the recess 21 formed in the mirror body 20 and closes the opening end 21a of the recess 21 (step S12, see FIG. 7(d)). An arrow Ar3 in FIG. 7(d) indicates the insertion direction of the lamp unit 10. At that time, the lamp unit 10 is slid in the direction of the arrow Ar3 with the lower wall 111c2 of the housing 11 and the lower inner wall 21c2 of the recess 21 in contact with each other.

[0051] As described above, with the outer lens body 121 inserted into the open end 21a of the recess 21 formed in the mirror body 20 and closing the open end 21a of the recess 21, the bottom 111b (screw boss portion 111b1) of the housing 11 abuts against the bottom 21b of the recess 21 formed in the mirror body 20 (see FIG. 4). This positions the lamp unit 10 relative to the mirror body 20 (recess 21) in the insertion direction of the lamp unit 10. The bottom 111b (screw boss portion 111b1) of the housing 11 is an example of a first positioning means of the present disclosure.

[0052] At this time, although not shown, the housing side flange portion F 11 A positioning rib R (see FIG. 6) provided on the housing abuts against an inner wall 21c of a recess 21 formed in the mirror body 20. This positions the lamp unit 10 relative to the mirror body 20 (recess 21) in the up-down and left-right directions. This keeps the gap (all around) between the lamp unit 10 (outer lens main body 121) and the mirror body 20 (opening end 21a of the recess 21) uniform. This improves the appearance. Housing side flange portion F 11The positioning rib R provided on the is an example of the second positioning means of the present disclosure.

[0053] Next, the lamp unit 10 positioned as described above is fixed to the mirror body 20 (step S13). For example, a screw N1 (see FIG. 4) inserted into the bottom portion 21b of the mirror body 20 is screwed into the bottom portion 111b (screw boss portion 111b1) of the housing 11. The screw N1 is an example of a fixing means of the present disclosure.

[0054] In this manner, the lamp unit 10 can be attached to the mirror body 20. The lamp unit 10 can be removed from the mirror body 20 in the reverse order.

[0055] Next, the effect of the lamp unit mounting structure of the present embodiment configured as described above will be further described using a comparative example.

[0056] 9 is a diagram for explaining the effect of the lamp unit mounting structure of this embodiment, in which the left side shows the lamp unit mounting structure of this embodiment, and the right side shows a lamp unit mounting structure of a comparative example.

[0057] As shown in Fig. 9, in the lamp unit mounting structure of the comparative example, the lower welded portion Bb is disposed on the vehicle front side relative to the upper welded portion Ba. Other than that, it has the same configuration as the lamp unit mounting structure of the above embodiment. In contrast, in the lamp unit mounting structure of the present embodiment, the extension portion E 12b、 E 12d (See Figure 6) and extension E 12d (not shown), with the lower welded portion Bb being disposed rearward of the upper welded portion Ba. As a result, according to the lamp unit mounting structure of this embodiment, the vertical dimension of the lamp unit 10 (outer lens body 121) can be shortened by length L3 (see FIG. 9) compared to the lamp unit mounting structure of the comparative example, that is, the lamp unit 10 (outer lens body 121) can be made smaller in size in the vertical direction.

[0058] As described above, according to this embodiment, the lamp unit 10 can be attached to the mirror body 20 from the front side of the vehicle.

[0059] This is because, first, the mirror body 20 to which the lamp unit is attached is formed with a recess 21 recessed from the front side of the vehicle toward the rear side of the vehicle, into which the lamp unit 10 is inserted from the front side of the vehicle, second, the lower welded part Bb is disposed on the rear side of the vehicle than the upper welded part Ba, and third, the inner wall 21c (lower inner wall 21c2) of the recess 21 formed in the mirror body 20 is formed with a notch S2 into which the lower welded part Bb is inserted. That is, as a result of employing the above first to third points, it is possible to implement the lamp unit mounting method shown in FIG.

[0060] Next, a modified example will be described.

[0061] In the above embodiment, an example has been described in which the lamp unit 10 functioning as a turn lamp is used as the lamp unit, and the mirror body 20 is used as the mounting partner of the lamp unit, but this is not limited thereto. For example, a lamp unit functioning as a vehicle signal lamp other than a turn lamp or a headlight may be used as the lamp unit, and a cowl or bumper other than the mirror body may be used as the mounting partner of the lamp unit. In this case, the lamp unit functioning as a vehicle signal lamp or a headlight may be mounted on the front end side of the vehicle or on the rear end side of the vehicle.

[0062] In the above embodiment, the outer shape of the outer lens body 121 is a pentagonal shape (see FIG. 1) including the upper oblique side portion 12a, the lower oblique side portion 12b, the inner oblique side portion 12c, the outer oblique side portion 12d, and the connecting side portion 12e connecting the lower oblique side portion 12b and the inner oblique side portion 12c in a front view, but is not limited thereto. For example, the outer shape of the outer lens body 121 may be a polygonal shape other than a pentagonal shape (for example, a rectangular shape shown in FIG. 10), or may be a shape other than a polygonal shape (for example, an elliptical shape shown in FIG. 11). FIG. 10 shows a first modified example of the outer shape of the outer lens body 121. FIG. 11 shows a second modified example of the outer shape of the outer lens body 121.

[0063] In the above embodiment, the outer lens 12 is used as the light-transmitting cover, but the present invention is not limited to this. For example, an inner lens may be used as the light-transmitting cover.

[0064] In the above embodiment, the cutout S2 formed in the inner wall 21c (lower inner wall 21c2) of the recess 21 formed in the mirror body 20 is used as the space into which one welded portion (lower welded portion Bb) is inserted, but the present invention is not limited to this. For example, a recess, a through hole, or the like formed in the inner wall 21c (lower inner wall 21c2) of the recess 21 formed in the mirror body 20 may be used as the space into which one welded portion (lower welded portion Bb) is inserted.

[0065] In the above embodiment, an example has been described in which the bottom 111b (screw boss portion 111b1) of the housing 11 is used as the first positioning means for positioning the lamp unit 10 relative to the mounting surface (mirror body 20) with respect to the insertion direction of the lamp unit 10, but the present invention is not limited to this. For example, a positioning rib (not shown) provided on one of the bottom 111b (screw boss portion 111b1) of the housing 11 and the bottom 21b of the recess 21 formed in the mirror body 20 and abutting the other may be used as the first positioning means.

[0066] In the above embodiment, the housing side flange portion F is used as a second positioning means for positioning the lamp unit 10 relative to the mounting surface (mirror body 20) in the up, down, left and right directions. 11 In the above embodiment, the positioning rib R (see FIG. 6) is provided on the inner wall 21c of the recess 21 formed in the mirror body 20, and abuts against the inner wall 21c of the recess 21 formed in the mirror body 20. However, the present invention is not limited to this. For example, the second positioning means may be a flange portion F on the housing side provided on the inner wall 21c of the recess 21 formed in the mirror body 20. 11 A positioning rib (not shown) that abuts against the rib may also be used.

[0067] In the above embodiment, the lower welded portion Bb is disposed on the vehicle rear side of the upper welded portion Ba (see FIG. 3), and the notch S2 into which the lower welded portion Bb is inserted is formed in the inner wall 21c (lower inner wall 21c2) of the recess 21 formed in the mirror body 20 (see FIG. 3), but the present invention is not limited to this. For example, as shown in FIG. 12, the lower welded portion Bb may be disposed on the vehicle front side of the upper welded portion Ba, and the notch S2 into which the upper welded portion Ba is inserted may be formed in the inner wall 21c (upper inner wall 21c1) of the recess 21 formed in the mirror body 20. FIG. 12 shows a modified example of the lamp unit 10.

[0068] Next, the lamp unit 10 will be described in more detail. Hereinafter, the optical member 13b will be referred to as a light guide body 13b. The lamp unit 10 is an example of a vehicle lamp of the present disclosure.

[0069] Fig. 13 is a front view of the light guide 13b constituting the lamp unit 10. Fig. 14 is a simplified view of Fig. 13. Fig. 15 is a top view of the light guide 13b and the substrate 13c on which the light source 13a is mounted. Fig. 16 is a perspective view of the vicinity of the optical system A1. Fig. 17 is a rear view of the light guide 13b.

[0070] The lighting unit 10 includes a plurality of optical systems A1 to A4 enclosed in a rectangle indicated by a dashed line in FIGS.

[0071] First, the optical systems A1 to A3 will be described. The optical systems A1 to A3 have the same configuration. Below, the optical system A1 will be described as a representative.

[0072] As shown in FIG. 15, the optical system A1 includes a light source 13a and a light guide section 60 that is a part of a light guide body 13b that guides the light emitted by the light source 13a.

[0073] The light source 13a is, for example, a semiconductor light-emitting element such as an LED that emits amber light. The light source 13a has a light-emitting surface (for example, a rectangular light-emitting surface with a side of 1 mm). The light source 13a is mounted on a board 13c attached to the housing 11 or the like. Due to installation space and other factors, the board 13c is disposed with its outer side in the vehicle width direction inclined toward the rear of the vehicle. Therefore, the optical axis AX of the light source 13a 13a is the optical axis AX of the central light entrance surface 71 extending in the vehicle front-rear direction. 71 The optical axis AX of the light source 13a is inclined at a predetermined angle. 13a passes through the center of the light-emitting surface and extends in a direction perpendicular to the light-emitting surface.

[0074] 14, 16, 17, etc., light guiding section 60, which is a part of light guide 13b, includes a light entrance section 70, a first light exit surface 80, and a second light exit surface 90. Light entrance section 70 is provided on the rear surface side of light guide 13b (light guiding section 60). Meanwhile, first light exit surface 80 and second light exit surface 90 are provided on the front surface side of light guide 13b (light guiding section 60).

[0075] As shown in FIG. 14, the outer shape of the light guide 13b is a quadrilateral (diamond shape) including an upper oblique side portion 13b1, a lower oblique side portion 13b2, an inner oblique side portion 13b3, and an outer oblique side portion 13b4 when viewed from the front.

[0076] Fig. 18 is a perspective view in which hatched areas HT1 to HT6 (second peripheral reflecting surfaces 73B constituting the light entrance section 70 as seen from the front) and hatched area HT7 (reflecting surface 110b constituting the additional light guiding section 110 as seen from the front) are added to Fig. 14. Fig. 19(a) is a cross-sectional view taken along line AA in Fig. 18, (b) is a cross-sectional view taken along line BB in Fig. 18, and (c) is a cross-sectional view taken along line CC in Fig. 18.

[0077] As shown in Figures 17, 19(a), and 19(b), the light entrance section 70 is configured as a cap-shaped light entrance section including a central light entrance surface 71 arranged in front of the light source 13a, a peripheral light entrance surface 72 (first peripheral light entrance surface 72A, second peripheral light entrance surface 72B) extending from the outer peripheral edge of the central light entrance surface 71 toward the light source 13a side, a peripheral reflective surface 73 (first peripheral reflective surface 73A, second peripheral reflective surface 73B) arranged on the outside of the peripheral light entrance surface 72, and an additional light entrance surface 74 arranged between the second peripheral reflective surface 73B arranged on the inside in the vehicle width direction and the second peripheral reflective surface 73B arranged on the outside in the vehicle width direction.

[0078] The central light entrance surface 71 is aligned along the optical axis AX 71 The lens surface has a rotationally symmetric shape with respect to the center of the light emitting surface of the light source 13a and has a focal point. This focal point is located at the center of the light emitting surface of the light source 13a. Therefore, the first light Ray1 from the light source 13a entering through the central light entrance surface 71 is aligned along the optical axis AX 71 The light is converted (collimated) into parallel light with respect to the object (see Figures 19(a) and 19(b)).

[0079] Similarly, the additional light entrance surface 74 is aligned with the optical axis AX of the central light entrance surface 71. 71 The lens surface has a rotationally symmetric shape with respect to the central light incident surface 71 and has a focal point. This focal point is located at the center of the light emitting surface of the light source 13a. Therefore, the fifth light Ray5 (see FIG. 19(b)) from the light source 13a incident from the additional light incident surface 74 is also incident on the optical axis AX 71 The light is converted (collimated) into parallel light relative to the

[0080] The central light incident surface 71 is disposed behind the first light exit surface 80 so that the first light Ray1 from the light source 13a incident from the central light incident surface 71 is guided inside the light guide 13b (light guide section 60) and exits from the first light exit surface 80 (see Figs. 19(a) and 19(b)). On the other hand, the additional light incident surface 74 is disposed behind the second light exit surface 90 so that the fifth light Ray5 from the light source 13a incident from the additional light incident surface 74 is guided inside the light guide section 60 (extended light guide section 100) and exits from the second light exit surface 90 (see Fig. 19(b)).

[0081] The peripheral light entrance surface 72 is a cylindrical light entrance surface extending from the outer periphery of the central light entrance surface 71 toward the light source 13a (see FIG. 17, FIG. 19(a), and FIG. 19(b)). However, the peripheral light entrance surface 72 is not completely cylindrical, but is cut out in the range of angle θ3 in FIG. 17. This is because of consideration of the mold requirements when molding (injection molding) the light guide 13b using a mold. The additional light entrance surface 74 is disposed in the cut-out range of angle θ3. Note that the cut-out within angle θ3 (and the additional light entrance surface 74) may be omitted. In other words, the second peripheral reflecting surface 73B within angle θ2 and the second peripheral reflecting surface 73B within angle θ4 may be continuous without any gaps.

[0082] The peripheral light entrance surface 72 is aligned with the optical axis AX of the central light entrance surface 71. 71 17. Specifically, the peripheral light entrance surface 72 includes a first peripheral light entrance surface 72A provided within a range of angle θ1 in FIG. 17, and a second peripheral light entrance surface 72B provided within a range of angles θ2, θ4, and θ5 in FIG. 17. In order to allow more light from the light source 13a to enter through the second peripheral light entrance surface 72B, the optical axis AX of the central light entrance surface 71 is set to 1 / 2.5 mm, as shown in FIG. 19(a). 71 The inclination angle θ of the second peripheral light entrance surface 72B with respect to 72B is the optical axis AX of the central light entrance surface 71. 71 4. This is larger than the inclination angle (approximately 0 degrees) of the first peripheral light entrance surface 72A with respect to the light receiving surface 72A.

[0083] As shown in Figures 17 and 19(a), the surrounding reflective surface 73 includes a first surrounding reflective surface 73A provided within the range of angle θ1 in Figure 17, and a second surrounding reflective surface 73B provided within the range of angles θ2, θ4, and θ5 in Figure 17.

[0084] The first peripheral reflecting surface 73A is aligned with the optical axis AX of the central light incident surface 71. 71 19(a) and 19(b), the first peripheral reflecting surface 73A is configured as a reflection surface having a rotationally symmetric parabolic shape with respect to the central light incident surface 71. As shown in FIG. 19(a) and FIG. 19(b), the first peripheral reflecting surface 73A reflects the second light Ray2 from the light source 13a, which is refracted and incident from the first peripheral light incident surface 72A and totally reflected by the first peripheral reflecting surface 73A, along the optical axis AX 71The surface shape is designed so that the light emitted from the lens is converted (collimated) into parallel light.

[0085] The first peripheral reflecting surface 73A is disposed behind the first light exiting surface 80 so that the second light Ray2 that enters from the first peripheral light entering surface 72A and is totally reflected by the first peripheral reflecting surface 73A is guided inside the light guide 13b (light guide section 60) and exits from the first light exiting surface 80. In this case, the first peripheral reflecting surface 73A is disposed inside the outer shape of the first light exiting surface 80 when viewed from the front.

[0086] The second peripheral reflecting surface 73B is aligned with the optical axis AX of the central light incident surface 71. 71 19(a), the second peripheral reflecting surface 73B is configured as a reflection surface having a rotationally symmetric parabolic shape with respect to the central light incident surface 71. As shown in FIG. 19(a), the second peripheral reflecting surface 73B reflects the third light Ray3 from the light source 13a, which is refracted and incident from the second peripheral light incident surface 72B and totally reflected by the second peripheral reflecting surface 73B, along the optical axis AX 71 The surface shape is designed so that the light emitted from the lens is converted (collimated) into parallel light.

[0087] The second peripheral reflection surface 73B is disposed behind the second light exit surface 90 so that the third light Ray3 that enters from the second peripheral light entrance surface 72B and is totally reflected by the second peripheral reflection surface 73B is guided through the light guide section 60 (extended light guide section 100) and exits from the second light exit surface 90 (see FIG. 19(c)). As shown in FIG. 18, the second peripheral reflection surface 73B within angles θ2, θ4, and θ5 (see hatched areas HT1, HT2, and HT8 in FIG. 8) includes ranges E1 and E3 that extend inward in the vehicle width direction from the outline of the first light exit surface 80 and a range E2 that extends outward in the vehicle width direction in a front view. These protruding ranges E1, E2, and E3 correspond to the ranges F1 and F3 (see Figure 14) of the second light exit surface 90 that protrude inward in the vehicle width direction from the outer shape of the first light exit surface 80, and the range F2 of the second light exit surface 90 that protrudes outward in the vehicle width direction.

[0088] Specifically, the second peripheral reflecting surface 73B within the angle θ2 is configured by dividing a reflecting surface similar to the first peripheral reflecting surface 73A into multiple concentric regions (multiple individual reflecting surfaces B1) (see FIG. 17), and arranging the divided individual reflecting surfaces B1 and connecting surfaces B2 alternately (see FIG. 19(a)). As a result, the second peripheral reflecting surface 73B is configured such that the optical axis AX of the central light entrance surface 71 is closer to the first peripheral reflecting surface 73A than the first peripheral reflecting surface 73A. 71 Inclination angle θ 73B (see FIG. 19(a)) is large, and the length D1 in the vehicle width direction (see FIG. 19(a)) is long. The same is true for the second peripheral reflection surface 73B within the angles θ4 and θ5.

[0089] This makes it possible to emit a third light Ray3 (light reflected from the second peripheral reflecting surface 73B) from ranges F1, F2, and F3 (see FIG. 14) of the second light emitting surface 90 that, in a front view, extend inward and outward in the vehicle width direction from the outer shape of the first light emitting surface 80. Note that the connecting surface B2 is a surface provided mainly for the purpose of maintaining the shape of the second peripheral reflecting surface 73B, and is not intended to have optical functions such as refraction or reflection.

[0090] 14, the first light-emitting surface 80 is configured as a circular light-emitting surface in a front view. Specifically, the first light-emitting surface 80 is not completely circular, but is configured as a circular light-emitting surface with a portion cut out by the linear second light-emitting surface 90 extending from the inside in the vehicle width direction to the outside in the vehicle width direction in a front view.

[0091] The first light-emitting surface 80 may include lens cuts that control the first light Ray1 and the second light Ray2 (see Fig. 16, Fig. 19(a), and Fig. 19(b)) emitted from the first light-emitting surface 80. The lens cuts are, for example, lens cuts 81 (plural) configured by dividing a circular area in the first light-emitting surface 80 into a lattice shape, and annular lens cuts 82 and 83 arranged concentrically outside the circular area in the first light-emitting surface 80, as shown in Fig. 13.

[0092] The lens cuts 81, 82, and 83 are configured so that the first light Ray1 and the second light Ray2 (see Figs. 16, 19(a), and 19(b)) emitted from the first light emitting surface 80 (lens cuts 81, 82, and 83) form a main light distribution (for example, a light distribution pattern for a turn lamp). Note that the lens cuts are not limited to the lens cuts 81, 82, and 83, and may have any configuration as long as they control the first light Ray1 and the second light Ray2 emitted from the first light emitting surface 80 and form a main light distribution (for example, a light distribution pattern for a turn lamp).

[0093] The second light-emitting surface 90 is configured as a linear light-emitting surface. Specifically, as shown in Fig. 14, the second light-emitting surface 90 is configured as a linear light-emitting surface with a narrow width W extending from the inside in the vehicle width direction to the outside in the vehicle width direction along the inner oblique side portion 13b3 and the upper oblique side portion 13b1 of the light guide 13b. The second light-emitting surface 90 includes a range F1 (see Fig. 14) protruding from the outer shape of the first light-emitting surface 80 to the inside in the vehicle width direction and a range F2 (see Fig. 14) protruding to the outside in the vehicle width direction when viewed from the front.

[0094] The second light-emitting surface 90 may include lens cuts that control the third light Ray3 and the fifth light Ray5 (see Figs. 16, 19(a), and 19(c)) emitted from the second light-emitting surface 90. The lens cuts are, for example, lens cuts 91 (plurality of lens cuts) configured by partitioning the lower half of the second light-emitting surface 90 in the longitudinal direction of the second light-emitting surface 90, as shown in Fig. 13.

[0095] The lens cut 91 is configured so that the third light Ray 3 and the fifth light Ray 5 emitted from the second light output surface 90 (lens cut 91) are irradiated in a direction (visual angle direction) defined by regulations. The direction (visual angle direction) defined by regulations is, for example, a reference axis extending in the front-rear direction of the vehicle (for example, the optical axis AX of the central light input surface 71). 71 ) and a reference axis (for example, the optical axis AX of the central light entrance surface 71) extending in the front-rear direction of the vehicle. 71) is a direction 80 degrees outward in the vehicle width direction with respect to a vertical plane including the second light output surface 90. This is realized, for example, by adjusting (designing) the curvature of the lens cut 91 (the curvature of the longitudinal section and the transverse section) so that the light is emitted in this angular direction. Note that the lens cut is not limited to the lens cut 91, and may have any configuration as long as it is a lens cut that irradiates the third light Ray3 and the fifth light Ray5 emitted from the second light output surface 90 in a direction (visual angle direction) specified by regulations.

[0096] As shown in FIG. 16, FIG. 19(b), and FIG. 19(c), the extended light guide 100 is provided on the upper part of the front surface of the light guide 13b. The extended light guide 100 is a part of the light guide 13b, and is a part extended forward from the first light output surface 80. The extended light guide 100 is provided on the upper part of the front surface of the light guide 13b, that is, in a region along the inner oblique side portion 13b3 and the upper oblique side portion 13b1. Specifically, the extended light guide 100 is provided in a range indicated by the symbol C1 in FIG. 14. The second light output surface 90 is provided on the tip of the extended light guide 100. That is, the second light output surface 90 is disposed forward of the first light output surface 80 so that the second light output surface 90 is a uniform light emitting surface. The extension length of extended light guiding portion 100 (length in the vehicle front-rear direction) may be any length that does not contact outer lens 12 when installed or when vibrated.

[0097] In the optical system A1 (the same goes for the optical systems A2 to A3) configured as above, the optical path of the light emitted by the light source 13a is as follows. That is, when the light source 13a is turned on, the first light Ray1 from the light source 13a enters through the central light entrance surface 71, as shown in Figures 19(a) and 19(b), and is aligned along the optical axis AX of the central light entrance surface 71. 71 The converted first light Ray1 is guided within the light-guiding section 60 and exits from the first light exit surface 80 (see FIGS. 16, 19(a) and 19(b)).

[0098] On the other hand, as shown in FIG. 19(a) and FIG. 19(b), the second light Ray2 from the light source 13a enters through the first peripheral light entrance surface 72A and is totally reflected by the first peripheral reflecting surface 73A, so that the second light Ray2 is reflected along the optical axis AX of the central light entrance surface 71. 71The converted second light Ray2 is guided within the light-guiding section 60 and exits from the first light exit surface 80 (see FIGS. 16, 19(a) and 19(b)).

[0099] As described above, the main light distribution (light distribution pattern for turn lamps) is realized by the first light Ray1 and the second light Ray2 that are mainly emitted from the first light emitting surface 80. In addition, the first light emitting surface 80 emits light by mainly emitting the first light Ray1 and the second light Ray2 from the first light emitting surface 80.

[0100] On the other hand, as shown in FIG. 19(a) and FIG. 19(c), the third light Ray3 from the light source 13a enters through the second peripheral light entrance surface 72B and is totally reflected by the second peripheral reflecting surface 73B (individual reflecting surface B1), so that the third light Ray3 is reflected along the optical axis AX of the central light entrance surface 71. 71 The third light Ray3 is converted (collimated) into parallel light with respect to the first peripheral reflecting surface 73B. This converted third light Ray3 is guided inside the light guiding section 60 (extended light guiding section 100) and exits from the second light exiting surface 90 (see Figs. 16, 19(a) and 19(c)). Note that a portion of the third light Ray3 totally reflected by the second peripheral reflecting surface 73B is guided inside the light guiding section 60 and exits from the first light exiting surface 80 (see Fig. 19(a)).

[0101] As shown in FIG. 19B, the fifth light Ray 5 from the light source 13a enters through the additional light entrance surface 74 and is aligned along the optical axis AX of the central light entrance surface 71. 71 The converted fifth light Ray5 is guided within the light-guiding section 60 (extended light-guiding section 100) and exits from the second light exit surface 90 (see Fig. 16 and Fig. 19(b)).

[0102] As described above, the third light Ray3 and the fifth light Ray5 are emitted from the second light output surface 90, and the range of the second light output surface 90 indicated by the symbol C2 in Fig. 18 is illuminated. At that time, the second peripheral reflecting surface 73B of the optical system A1 (see hatched area H2 in Fig. 18) and the second peripheral reflecting surface 73B of the optical system A2 (see hatched area H3 in Fig. 18) are arranged without any gap between them when viewed from the front (see Fig. 18), so that when the second light output surface 90 emits light, the formation of a dark area (dark area) due to the gap between them is prevented on the second light output surface 90. Similarly, when viewed from the front, the second peripheral reflective surface 73B of the optical system A2 (see hatched area H4 in Figure 18) and the second peripheral reflective surface 73B of the optical system A3 (see hatched area H5 in Figure 18) are arranged with no gap between them when viewed from the front (see Figure 18), so that when the second light-emitting surface 90 emits light, the formation of a dark area (dark area) between the second light-emitting surface 90 due to the gap between them is prevented.

[0103] Next, the optical system A4 will be described.

[0104] Fig. 20 is a DD cross-sectional view of Fig. 18. As shown in Figs. 15 and 20, the optical system A4 includes an additional light guiding section 110 that is a part of the light guide 13b. The additional light guiding section 110 is disposed outside the optical system A3 in the vehicle width direction and behind the second light output surface 90. The additional light guiding section 110 may be omitted.

[0105] As shown in FIG. 20, the optical axis AX 13a is the optical axis AX of the central light entrance surface 71 extending in the vehicle front-rear direction. 71 On the other hand, the optical axis AX of the central light entrance surface 71 is inclined at a predetermined angle. 71 Therefore, the fourth light Ray4, which is a part of the light from the light source 13a constituting the optical system A3, does not enter the light entrance portion 70 of the third optical system A3.

[0106] The additional light guiding section 110 guides the fourth light Ray4 to the second light exit surface 90 so that the fourth light Ray4 that does not enter the light entering section 70 constituting the optical system A3 exits from the second light exit surface 90.

[0107] Specifically, the additional light guiding section 110 includes a light entrance surface 110a and a reflecting surface 110b. The light entrance surface 110a is disposed on the inner side in the vehicle width direction, and the reflecting surface 110b is disposed on the outer side in the vehicle width direction.

[0108] The light incident surface 110a is disposed on the optical path of the fourth light Ray4 so that the fourth light Ray4 enters the light incident surface 110a.

[0109] The reflecting surface 110b is aligned with the optical axis AX of the central light incident surface 71 that constitutes the optical system A3. 71 20, the reflecting surface 110b is configured as a reflection surface having a parabolic shape that is rotationally symmetric with respect to the light incident surface 110a. As shown in FIG. 20, the fourth light Ray4 is refracted and incident from the light incident surface 110a, and is totally reflected by the reflecting surface 110b. The fourth light Ray4 is reflected by the light incident surface 110a and is totally reflected by the reflecting surface 110b. The fourth light Ray4 is reflected by the light incident surface 110b along the optical axis AX 71 The surface shape is designed so that the light emitted from the lens is converted (collimated) into parallel light.

[0110] The reflecting surface 110b is disposed behind the second light exit surface 90 so that the fourth light Ray4 entering from the light entering surface 110a is guided inside the light guide 13b (additional light guiding section 110) and exits from the second light exit surface 90. The hatched area HT7 in FIG. 18 represents the reflecting surface 110b disposed behind the second light exit surface 90.

[0111] In the optical system A4 having the above configuration, the optical path of the light emitted by the light source 13a is as follows. That is, as shown in FIG. 20, the fourth light Ray4 from the light source 13a constituting the optical system A3 enters through the light entrance surface 110a and is totally reflected by the reflecting surface 110b, and is reflected along the optical axis AX of the central light entrance surface 71 constituting the optical system A3. 71 The converted fourth light beam Ray4 is guided through the light guide body 13b (additional light guiding section 110) and exits from the second light exit surface 90.

[0112] As described above, the fourth light Ray4 is emitted from the second light-emitting surface 90, and thus the range of the second light-emitting surface 90 that is further outward in the vehicle width direction, i.e., the range indicated by reference symbol C3 in Fig. 18, is illuminated. At this time, the second peripheral reflecting surface 73B (see hatched area H6 in Fig. 18) of the optical system A3 and the reflecting surface 110b (see hatched area H7 in Fig. 18) of the optical system A4 are arranged without any gap between them when viewed from the front (see Fig. 18), and therefore, when the second light-emitting surface 90 emits light, the formation of a dark area (dark area) on the second light-emitting surface 90 due to the gap between them is prevented.

[0113] As described above, according to this embodiment, when viewed from the front, it is possible to emit light over a linear range (the entire second light emitting surface 90) including the first light emitting surface 80 (e.g., a circular light emitting surface) and a range extending beyond the outer shape of the first light emitting surface 80, for example, a range E1 (see Figure 18) extending to the inside in the vehicle width direction and a range E2 (see Figure 18) extending to the outside in the vehicle width direction.

[0114] This is mainly due to the presence of a linear second light-emitting surface 90 including ranges F1, F2 that extend beyond the outline of the first light-emitting surface 80 when viewed from the front, and a second peripheral reflecting surface 73B that is arranged behind the second light-emitting surface 90 and includes ranges E1, E2 that extend beyond the outline of the first light-emitting surface 80 when viewed from the front.

[0115] Furthermore, according to this embodiment, since the additional light guiding section 110 is provided, it is possible to emit light to a range of the second light output surface 90 that is further outward in the vehicle width direction, that is, the range indicated by the reference symbol C4 in FIG.

[0116] Next, a modified example will be described.

[0117] In the above embodiment, an example was described in which a linear light exit surface 90 with a narrow width W extending from the inside in the vehicle width direction to the outside in the vehicle width direction along the inner oblique side portion 13b3 and the upper oblique side portion 13b1 of the light guide 13b is used as the second light exit surface, but this is not limited to this.

[0118] FIG. 21 is a front view of a light guide 13b using the second light exit surface 90A (modification).

[0119] 21, a narrow annular second light-emitting surface 90A extending along the inner oblique side portion 13b3, the upper oblique side portion 13b1, the outer oblique side portion 13b4, and the lower oblique side portion 13b2 of the light guide 13b may be used as the second light-emitting surface. The narrow annular second light-emitting surface 90A extending along the inner oblique side portion 13b3, the upper oblique side portion 13b1, the outer oblique side portion 13b4, and the lower oblique side portion 13b2 can be made to emit light in the same manner as the second light-emitting surface 90 by adding light-entering surfaces and reflecting surfaces similar to the second peripheral light-entering surface 72B and the second peripheral reflecting surface 73B within angles θ2, θ4, and θ5.

[0120] In the above embodiment, the circular light-emitting surface 80 is used as the first light-emitting surface, but the present invention is not limited to this.

[0121] FIG. 22 is a front view of a light guide 13b using the first light exit surface 80A (modification).

[0122] For example, as shown in FIG. 22, a rectangular light exit surface 80A may be used as the first light exit surface.

[0123] The numerical values ​​shown in the above embodiments are all examples, and it goes without saying that suitable numerical values ​​different from these can be used.

[0124] The above-described embodiments are merely examples in all respects. The present disclosure should not be construed as being limited by the description of the above-described embodiments. The present disclosure can be implemented in various other forms without departing from the spirit or main characteristics thereof. [Explanation of symbols]

[0125] 10...Lighting unit (vehicle lighting) 11. Housing 12…Outer lens 12a...Upper hypotenuse 12b…Lower oblique side 12c…Inner oblique side 12d...Outer hypotenuse 12e...Connecting edge 13...Optical system 13a...Light source 13b...Optical member (light guide) 13b1...Upper hypotenuse 13b2…Lower oblique side 13b3…Inner hypotenuse 13b4...Outer hypotenuse 13c...Substrate 20…Mirror body 21…Recess 21a...Open end 21b...bottom 21c…Inner wall 21c1…Upper inner wall 21c2…Lower inner wall 30…Stay 40…Mirror 50…Housing 60...Light guide section 70…Light entrance part 71...Central light entrance surface 72...Ambient light receiving surface 72A…1st peripheral light incident surface 72B…Second peripheral light incident surface 73...Surrounding reflective surface 73A…First surrounding reflective surface 73B…Second peripheral reflective surface 74…Additional light incident surface 80…1st light output surface 81-83, 91...Lens cut 90…Second light output surface 100...Extended light guide section 110...Additional light guide section 110a...Light incident surface 110b…Reflective surface 111…Housing body 111a...Open end 111b…Bottom 111b1 screw boss part 111c…side wall 111c1…Upper wall 111c2…lower wall 121…Outer lens body A1-A4…Optical system AX 13a , AX 71 …optical axis B...Welded part B1…Individual reflective surface B2: Joint surface Ba…Top welding part Bb…lower welding part E1, E2...Extra area E 12b , E 12d , E 12e …extension F1, F2...protruding range F 11 …Housing side flange F 11a …Upper flange F 11b …Lower flange F 11c …Inner flange F 11d …Outer flange F 11e …Connecting flange section F 12 …Outer lens flange F 12a …Upper flange F 12b …Lower flange F 12c …Inner flange F 12d …Outer flange F 12e …Connecting flange section HT1-HT7…Hatched area N1…Screw R… Positioning rib Ray1: First light Ray2: Second light Ray3…the third light Ray4…the fourth light S1…Light room S2: Notch

Claims

1. A light source; a light guide that guides the light emitted by the light source, the light guide includes a cap-shaped light entrance portion including a central light entrance surface disposed in front of the light source, a peripheral light entrance surface extending from an outer periphery of the central light entrance surface toward the light source side, and a first peripheral reflective surface and a second peripheral reflective surface disposed outside the peripheral light entrance surface, a first light exit surface, and a second light exit surface; the central light entering surface is disposed behind the first light exiting surface such that a first light from the light source entering through the central light entering surface is guided through the light guide and exits from the first light exiting surface; the first peripheral reflection surface is disposed behind the first light exit surface such that a second light, which is part of the light from the light source entering through the peripheral light entrance surface and is totally reflected by the first peripheral reflection surface, is guided through the light guide and exits from the first light exit surface; the second light output surface is configured as a linear light output surface including a range extending beyond an outer shape of the first light output surface when viewed from the front, The second surrounding reflective surface is arranged behind the second light exit surface so that a third light of the light from the light source that enters through the surrounding light entrance surface and is totally reflected at the second surrounding reflective surface is guided within the light guide and exits from the second light exit surface, and includes an area that extends beyond the outline of the first light exit surface when viewed from the front.

2. the first light output surface is configured as a circular light output surface, a portion of which is cut away by the second light output surface, when viewed from the front, The second light output surface is configured as a linear light output surface including a range protruding inward in the vehicle width direction from an outer shape of the first light output surface and a range protruding outward in the vehicle width direction, when viewed from the front, The first peripheral reflection surface is disposed inside an outer shape of the first light output surface in a front view, The vehicle lamp according to claim 1 , wherein the second peripheral reflection surface includes, in a front view, a range that protrudes inward in a vehicle width direction from an outer shape of the first light output surface and a range that protrudes outward in the vehicle width direction.

3. The light guide further includes an extended light guide portion extending forward from the first light output surface, The vehicle lamp according to claim 2 , wherein the second light exit surface is provided at a tip end of the extended light guiding portion.

4. The vehicular lamp according to claim 3 , wherein the second light output surface includes a lens cut that controls the third light output from the second light output surface.

5. 2. The vehicular lamp according to claim 1, wherein the light guide further includes an additional light guide portion that guides a fourth light from the light source that does not enter the light entrance portion to the second light exit surface so that the fourth light exits from the second light exit surface.

Images