JP6690960B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp including a plurality of sets of light emitting elements and projection lenses.

  Conventionally, a plurality of projection lenses arranged in parallel in a required direction intersecting with the vehicle front-rear direction, and a plurality of light emitting elements arranged behind these plurality of projection lenses, direct light from each light emitting element is provided. 2. Description of the Related Art There is known a vehicular lamp configured to form a required light distribution pattern by irradiating forward through each projection lens.

  In "Patent Document 1", such a direct-lighting type vehicular lamp is provided with a plurality of types of projection lenses having different focal lengths to form a plurality of types of light distribution patterns. Is listed.

JP 2004-327188 A

  In the vehicle lamp described in the above "Patent Document 1," a plurality of projection lenses for forming the first light distribution pattern and a plurality of projection lenses for forming the second light distribution pattern are arranged in parallel. Since it is arranged in the above, a large number of projection lenses are required, and the arrangement space becomes large. Therefore, it is difficult to make the vehicle lamp compact.

  The present invention has been made in view of such circumstances, and is a vehicular lamp including a plurality of sets of light emitting elements and a projection lens for forming a first light distribution pattern. It is an object of the present invention to provide a vehicular lamp capable of forming a light distribution pattern of 2.

  The present invention is intended to achieve the above object by devising the arrangement of the light emitting elements and the configuration of the light source support member.

That is, the vehicle lamp according to the present invention is
A plurality of projection lenses arranged in parallel in a required direction intersecting the vehicle front-rear direction, and a plurality of first light emitting elements arranged behind the plurality of projection lenses are provided. A vehicle lighting device configured to form a first light distribution pattern by irradiating light forward through each of the projection lenses,
At least one second light emitting element is disposed behind a common light source support member that supports the plurality of first light emitting elements,
The light source support member is formed with at least one light transmitting portion for transmitting light emitted from the at least one second light emitting element to the front,
A second light distribution pattern is formed by irradiating the light emitted from the at least one second light emitting element forward through the at least one light transmitting portion and the plurality of projection lenses. It is configured in.

  The "required direction" is not limited to a specific direction as long as it is a direction intersecting the vehicle front-rear direction.

  The specific numbers of the “plurality of projection lenses” and the “plurality of first light emitting elements” are not particularly limited.

  The specific configuration such as the material and shape of the “light source support member” is not particularly limited.

  The “light emitted from the second light emitting element” may be direct light emitted from the second light emitting element or light emitted from the second light emitting element and controlled by a reflector, a lens or the like. Good.

  The above-mentioned “translucent part” is not particularly limited in its specific configuration as long as it can transmit the light emitted from the second light emitting element, and is, for example, a part of the light source support member. It is possible to employ a member formed by forming a through hole or a notch in the, or a member formed by forming a part of the light source support member with a transparent body.

  The types of the “first light distribution pattern” and the “second light distribution pattern” are not particularly limited, and include, for example, a low beam light distribution pattern and a light distribution pattern for forming a part thereof. A light distribution pattern for a high beam or a light distribution pattern for forming a part thereof, a light distribution pattern for a daytime running lamp, a light distribution pattern for a fog lamp, or the like can be adopted.

  The vehicular lamp according to the present invention forms a first light distribution pattern by irradiating direct light from each of the plurality of first light emitting elements forward through each of the plurality of projection lenses. However, at least one second light emitting element is disposed behind a common light source supporting member that supports a plurality of first light emitting elements, and at least one light transmitting portion is provided in the light source supporting member. The second light distribution pattern is formed by irradiating the emitted light from the at least one second light emitting element forward through at least one light transmitting portion and the plurality of projection lenses. Since the above-mentioned structure is formed, the following operational effects can be obtained.

  That is, by using a configuration in which the second light distribution pattern is formed by using a plurality of projection lenses for forming the first light distribution pattern, it is possible to form the first light distribution pattern as in the conventional case. The arrangement space can be made smaller than that in the case where the plurality of projection lenses and the plurality of projection lenses for forming the second light distribution pattern are arranged in parallel. The lamp can be made compact.

  As described above, according to the present invention, in a vehicular lamp including a plurality of sets of light emitting elements and a projection lens for forming the first light distribution pattern, the second light distribution pattern can be formed with a compact structure. You can

  Moreover, in the present invention, since the plurality of first light emitting elements are supported by the common light source supporting member, it is possible to reduce the number of parts and to improve the positional relationship accuracy between the first light emitting elements. You can

  In the above configuration, if each of the at least one light-transmitting portion is formed of a through hole formed in the light source support member, the heat radiation performance of the light source support member is improved and the strength thereof is maintained, and the above-described operational effects are achieved. Can be obtained.

  In the above configuration, at least one second light emitting element is configured by a plurality of second light emitting elements arranged in parallel in a required direction, and at least one light-transmitting portion is arranged in a plurality in parallel in a required direction. If the light-transmitting portion is used, the second lighting pattern can be formed as a bright lighting pattern while maintaining the compact structure of the vehicular lamp.

1 is a partial sectional front view showing a vehicle lamp according to an embodiment of the present invention. II-II line sectional view of FIG. III-III sectional view taken on the line of FIG. Exploded perspective view showing the main components of the vehicle lamp (A) is a figure which shows perspectively the high beam light distribution pattern formed by the irradiation light from the said vehicle lamp, (b), (c) is a figure which decomposes | disassembles and shows the said high beam light distribution pattern. (A) is a figure which shows perspectively the light distribution pattern for high beams formed by the irradiation light from the said vehicle lighting and the vehicle lighting which pairs with this, (b) is a part of said high beam light distribution pattern. Figure showing the light distribution pattern with missing The front view which shows three modifications of the light source support member in the said vehicle lamp. A diagram similar to FIG. 2, showing a first modification of the above embodiment. A diagram similar to FIG. 3, showing a second modification of the above embodiment. The same figure as FIG. 5 which shows the effect | action of the said 2nd modification. The figure similar to FIG. 2 which shows the 3rd modification of the said embodiment. The figure similar to FIG. 3 which shows the 4th modification of the said embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a partial sectional front view showing a vehicular lamp 10 according to an embodiment of the present invention. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG.

  As shown in these drawings, a vehicle lamp 10 according to the present embodiment is a headlamp arranged at the right front end of a vehicle, and has a high beam light distribution pattern and a light distribution pattern in which a part thereof is cut off. Are formed so that

  In the vehicle lamp 10, the direction indicated by X in FIG. 2 is “front” (also “front” for a vehicle), and the direction indicated by Y is “left” orthogonal to “front” (as a vehicle). Is also “left direction”, but is “right direction” when viewed from the front of the lamp.

  The vehicle lamp 10 includes four projection lenses 22A, 22B, 22C and 22D in a lamp chamber formed by a lamp body 12 and a light-transmitting transparent cover 14 attached to a front end opening thereof. Four first light emitting elements 30A, 30B, 30C, 30D arranged behind the two projection lenses 22A to 22D, a common light source support member 32 that supports these four first light emitting elements 30A to 30D, and this light source It has a configuration in which three second light emitting elements 40A, 40B, 40C arranged behind the support member 32 and a common light source support member 42 that supports these three second light emitting elements 40A to 40C are incorporated. There is.

  FIG. 4 is an exploded perspective view showing main components of the vehicle lamp 10.

  As shown in the figure, the four projection lenses 22A to 22D are configured as a single transparent member 20. These four projection lenses 22A to 22D are arranged side by side in the vehicle width direction and have the same configuration.

  Specifically, each of the projection lenses 22A to 22D has a front surface 22a formed of a convex cylindrical surface extending in the vehicle width direction, and a rear surface 22b thereof formed of a convex cylindrical surface extending in the vertical direction. At that time, the vertical cross-sectional shape of the front surface 22a and the horizontal cross-sectional shape of the rear surface 22b are set to curved shapes having the same curvature.

  Each of the projection lenses 22A to 22D has an optical axis Ax extending in the vehicle front-rear direction so as to pass through the center position of the front surface 22a in the vertical direction and the center position of the rear surface 22b in the vehicle width direction.

  The front surface of the transparent member 20 is formed such that the front surfaces 22a of the four projection lenses 22A to 22D are continuous single convex cylindrical surfaces. The transparent member 20 has flange portions 20a on both sides of the four projection lenses 22A to 22D in the vehicle width direction and is supported by the lamp body 12 at these flange portions 20a.

  The four first light emitting elements 30A to 30D are arranged in parallel in the vehicle width direction and all have the same configuration.

  Specifically, each of the first light emitting elements 30A to 30D is a white light emitting diode having a substantially square light emitting surface 30a, and the light emitting surface 30a is slightly forward of the rear focal point F of each of the projection lenses 22A to 22D. It is mounted on the light source support member 32 with the side facing the front of the vehicle.

  The light source support member 32 is configured as a metal support substrate extending along a vertical plane orthogonal to the optical axis Ax, and also functions as a heat sink. The light source support member 32 is formed in a horizontally long rectangular shape when viewed from the front of the lamp, and has a lateral width slightly smaller than the transparent member 20 and a vertical width slightly larger than the transparent member 20. The light source support member 32 is supported by the lamp body 12 at both left and right ends thereof.

  The four first light emitting elements 30A to 30D are arranged in a state of being displaced inward in the vehicle width direction (that is, left side) with respect to the optical axis Ax of each of the four projection lenses 22A to 22D. At that time, the lateral displacement amount of each of the first light emitting elements 30A to 30D from the optical axis Ax is largest in the first light emitting element 30A located on the innermost side in the vehicle width direction, and the first light emission is directed toward the outer side in the vehicle width direction. The elements 30B, 30C, and 30D are gradually decreased in this order.

  The three second light emitting elements 40A to 40C are arranged in parallel in the vehicle width direction, and all have the same configuration.

  Specifically, each of the second light emitting elements 40A to 40C is a white light emitting diode having a horizontally long rectangular light emitting surface 40a, and is mounted on the light source support member 42 with the light emitting surface 40a facing the front of the vehicle. Has been done.

  The light source support member 42 is configured as a metal support substrate extending along a vertical plane orthogonal to the optical axis Ax, and also functions as a heat sink. The light source support member 42 is formed in a horizontally long rectangular shape when viewed from the front of the lamp, and has a lateral width slightly smaller than the light source support member 32 and a slightly larger vertical width. The light source support member 42 is supported by the lamp body 12 at both left and right ends thereof.

  The three second light emitting elements 40A to 40C are arranged at positions corresponding to the three projection lenses 22A to 22C on the inner side in the vehicle width direction.

  At that time, each of the second light emitting elements 40A to 40C is mounted on the light source support member 42 in a state in which the light emitting surface 40a of the second light emitting element 40A is directed toward the vehicle front slightly rearward of the rear focal point F of each of the projection lenses 22A to 22C. Has been done. That is, the rearward displacement amount of each of the second light emitting elements 40A to 40C from the rear focal point F of the light emitting surface 40a is larger than the frontward displacement amount of each of the first light emitting elements 30A to 30D from the rear focal point F of the light emitting surface 30a. It is set to a small value.

  The second light emitting element 40B located at the center among these three second light emitting elements 40A to 40C is arranged on the optical axis Ax of the second projection lens 22B from the inner side in the vehicle width direction, and is arranged in the inner side in the vehicle width direction. The located second light emitting element 40A is arranged in a state slightly displaced inward in the vehicle width direction with respect to the optical axis Ax of the first projection lens 22A from the inside in the vehicle width direction, and is located outside in the vehicle width direction. The second light emitting element 40C is arranged in a state of being slightly displaced outward in the vehicle width direction with respect to the optical axis Ax of the third projection lens 22C from the inside in the vehicle width direction.

  The light source support member 32 has light transmitting portions 32aA, 32aB, 32aC for transmitting the light emitted from the second light emitting elements 40A to 40C to the front and making the light incident on the projection lenses 22A to 22C in the vehicle width direction. It is formed at three locations spaced from each other. All of these three light-transmitting portions 32aA to 32aC are formed as through holes having a laterally oblong elliptical opening shape and have the same opening shape.

  In the vehicular lamp 10 according to the present embodiment, the four first light emitting elements 30A to 30D are simultaneously or selectively turned on, and the three second light emitting elements 40A to 40C are simultaneously turned on. .

  FIG. 5A is a diagram perspectively showing a high-beam light distribution pattern PR formed on a virtual vertical screen arranged at a position 25 m in front of the lamp by the irradiation light from the vehicle lamp 10.

  The high beam light distribution pattern PR is formed as a combined light distribution pattern of the first light distribution pattern PR1 shown in FIG. 5B and the second light distribution pattern PR2 shown in FIG. 5C.

  The first light distribution pattern PR1 shown in FIG. 5B is a light distribution pattern formed when the four first light emitting elements 30A to 30D are turned on at the same time, and the four light source images I1a, I1b, It is composed of I1c and I1d.

  Each light source image I1a to I1d is formed as a light distribution pattern having a substantially square outer shape by the reverse projection of the light emitting surface 30a of each first light emitting element 30A to 30D by each projection lens 22A to 22D. .

  The four light source images I1a to I1d are formed in a state of being aligned in the left-right direction so as to vertically extend across a line H-H that passes horizontally through the vanishing point H-V in the front direction of the lamp. At this time, in these four light source images I1a to I1d, the leftmost light source image I1d intersects with the VV line passing through HV in the vertical direction at the left end portion thereof, and is adjacent to each other. The left and right ends of the light source images I1a to I1d partially overlap with each other.

  This is because the light emitting surface 30a of each of the first light emitting elements 30A to 30D is located slightly forward of the rear focal point F of each of the projection lenses 22A to 22D, and the optical axis of each of the projection lenses 22A to 22D. This is because the displacement amount of each light emitting surface 30a inward in the vehicle width direction with respect to Ax is slightly different.

  The second light distribution pattern PR2 shown in FIG. 5C is a light distribution pattern formed when the three second light emitting elements 40A to 40C are turned on at the same time, and the three light source images I2a, I2b, It is composed of I2c.

  Each light source image I2a to I2c is formed as a light distribution pattern having a substantially horizontally long rectangular outer shape by the reverse projection of the light emitting surface 40a of each first light emitting element 40A to 40C by each projection lens 22A to 22C. ing.

  The three light source images I2a to I2c are formed as relatively bright light source images in a state of being aligned in the left-right direction so as to straddle the line H-H in the vertical direction. At this time, in these three light source images I2a to I2c, the light source image I2b located at the center is formed around the line V-V, and the remaining two light source images I2a and I2c are located on the left and right sides of the light source image I2b. It is formed in a state of being slightly shifted.

  This is because the light emitting surface 40a of each of the second light emitting elements 40A to 40C is arranged in a state in which the light emitting surface 40a is slightly displaced in the vehicle width direction slightly rearward of the rear focal point F of each of the projection lenses 22A to 22C. It is due to.

  As shown in FIG. 5A, the high-beam light distribution pattern PR has a left end portion of the first light distribution pattern PR1 with respect to the second light distribution pattern PR2 formed around the line V-V. Are formed as a superimposed light distribution pattern.

  FIG. 6A is a perspective view showing a high beam light distribution pattern P0 formed for each vehicle.

  This high-beam light distribution pattern P0 is a high-beam light distribution pattern PR formed by light emitted from the vehicle lamp 10 and a vehicle lamp that should be paired with the vehicle lamp 10 (that is, at the left front end of the vehicle). It is formed as a combined light distribution pattern with the high beam light distribution pattern PL formed by the irradiation light from the vehicle lamp 10 that is arranged and is symmetrical with the vehicle lamp 10.

  As shown in FIG. 6A, the high beam light distribution pattern P0 includes a left end portion of the first light distribution pattern PR1 in the high beam light distribution pattern PR and a first light distribution pattern PL1 in the high beam light distribution pattern PL. At the position of the line V-V overlaps with the right end of the vehicle, thereby irradiating the vehicle front traveling path widely in the left-right direction. In the high beam light distribution pattern P0, the second light distribution pattern PR2 in the high beam light distribution pattern PR and the second light distribution pattern PL2 in the high beam light distribution pattern PL are centered on the line V-V. This overlaps, so that the distant area of the road ahead of the vehicle is illuminated brightly.

  The light distribution pattern P1 shown in FIG. 6B is a light distribution pattern in which a part of the high beam light distribution pattern P0 is missing.

  That is, the light distribution pattern P1 is formed as a light distribution pattern in which a part of the first light distribution pattern PR1 in the high beam light distribution pattern PR is missing from the high beam light distribution pattern P0.

  Specifically, this light distribution pattern P1 lacks the second light source image I1b from the right of the four light source images I1a to I1d forming the first light distribution pattern PR1. The light distribution pattern P1 is formed by turning off the first light emitting element 30B, which is the second from the inner side in the vehicle width direction, of the four first light emitting elements 30A to 30D.

  By forming the light distribution pattern P1 in which the light source image I1b is missing in this manner, the light source images I1a and I1c located on the left and right sides of the oncoming vehicle 2 are used to form a light distribution pattern P1 on the road ahead of the vehicle without causing glare to the driver of the oncoming vehicle 2. It is designed to ensure visibility.

  Next, the function and effect of this embodiment will be described.

  In the vehicle lamp 10 according to the present embodiment, four sets of the first light emitting elements 30A, 30B, 30C, 30D and the projection lenses 22A, 22B, 22C, 22D are arranged in parallel in the vehicle width direction, and the four light emitting elements are arranged. The first light distribution pattern PR1 is formed by irradiating direct light from each of the first light emitting elements 30A to 30D forward through each of the four projection lenses 22A to 22D. Three second light emitting elements 40A, 40B, 40C are arranged behind a common light source supporting member 32 that supports the four first light emitting elements 30A to 30D, and the light source supporting member 32 has three transparent members. Light portions 32aA, 32aB, and 32aC are formed, and the light emitted from each of the three second light emitting elements 40A to 40C is converted into three light transmitting portions 32aA to 32aC and three projection lenses. Since has a configuration which forms a second light distribution pattern PR2 by irradiating toward the front through the respective's 22A to 22C, it is possible to obtain the following effects.

  That is, the second light distribution pattern PR2 is formed by using the four projection lenses 22A to 22D for forming the first light distribution pattern PR1. Arrangement of four projection lenses 22A to 22D for forming PR1 and three new projection lenses for forming the second light distribution pattern PR2 in parallel The space can be reduced, and thus the vehicular lamp 10 can be made compact.

  As described above, according to the present embodiment, the vehicular lamp 10 including the four sets of the first light emitting elements 30A to 30D and the projection lenses 22A to 22D for forming the first light distribution pattern PR1 has a compact configuration. The second light distribution pattern PR2 can be formed.

  At that time, by forming the first light distribution pattern PR1, it is possible to widely irradiate the vehicle front traveling path in the left-right direction, and by forming the second light distribution pattern PR2, a distant region of the vehicle front traveling path can be obtained. It can be illuminated brightly.

  Moreover, in the present embodiment, since the four first light emitting elements 30A to 30D are supported by the common light source support member 32, the number of parts can be reduced, and the first light emitting elements 30A to 30D are mutually connected. It is possible to improve the positional relationship accuracy between them.

  Further, in the present embodiment, since each of the three light transmitting portions 32aA to 32aC is formed of the through hole formed in the light source support member 32, it is possible to improve the heat dissipation of the light source support member 32 and maintain its strength. It is possible to obtain the above effects while achieving both compatibility.

  Further, in the present embodiment, since the three (that is, a plurality of) second light emitting elements 40A to 40C and the three light transmitting portions 32aA to 32aC are arranged in parallel in the vehicle width direction, the vehicle lamp 10 is compact. While maintaining the configuration, the second light distribution pattern PR2 can be formed as a bright light distribution pattern.

  Further, in the present embodiment, since the four projection lenses 22A to 22D are configured as a single transparent member 20, it is possible to reduce the number of parts and the positional relationship between the projection lenses 22A to 22D. The accuracy can be increased. Moreover, since the front surface of the transparent member 20 is configured as a single convex cylindrical surface in which the front surfaces 22a of the four projection lenses 22A to 22D are continuous, when the vehicle lamp 10 is observed from the outside, the four projections are projected. The presence of the lenses 22A to 22D can be made inconspicuous, and the designability thereof can be improved.

  In the above embodiment, the convex cylindrical surface forming the front surface 22a of each of the projection lenses 22A to 22D and the convex cylindrical surface forming the rear surface 22b are set to have a curved shape with the same curvature. However, it is also possible to adopt a configuration in which curved shapes having different curvatures are set.

  In the above-described embodiment, each of the projection lenses 22A to 22D has a front surface 22a formed of a convex cylindrical surface extending in the vehicle width direction and a rear surface 22b formed of a convex cylindrical surface extending in the vertical direction. Although described, it is also possible to use a lens having a configuration other than this (for example, a plano-convex lens or a biconvex lens).

  In the above-described embodiment, it is described that the first light emitting elements 30A to 30D and the projection lenses 22A to 22D are provided in four sets, but it is also possible to have three sets or less, or five or more sets.

  In the above-described embodiment, the description has been made on the assumption that the three second light emitting elements 40A to 40C are provided, but it is also possible to adopt a configuration including two or less or four or more.

  In the above-described embodiment, the light source support members 32 and 42 are described as being configured as metal support substrates, but they may be configured as resin support substrates. Even with such a configuration, it is possible to function as a heat sink by forming a conductive pattern or the like on the surface of each light source support member 32, 42.

  In the above-described embodiment, the three light transmitting portions 32aA to 32aC formed on the light source support member 32 are described as being formed as through holes having a horizontally elongated elliptical opening shape. It is also possible to do so.

  For example, it is formed as a through hole having a circular opening shape such as the three light-transmitting portions 32bA, 32bB, and 32bC shown in FIG. 7A, or a through hole having an opening shape other than this, such as a rectangle, a rhombus, or a trapezoid. It is possible to have a configured configuration.

  Further, it is also possible to adopt a configuration in which the light source support member 32 is formed as a cutout portion like the three light transmitting portions 32cA, 32cB, 32cC shown in FIG. 7B.

  Further, it is also possible to adopt a configuration formed as a transparent body like the three light transmitting portions 32dA, 32dB, 32dC shown in FIG. 7C. At that time, the light source support member 32 is configured as a support substrate made of a transparent resin, and a conductive pattern or the like is formed on the surface of the light source support member 32 except for the three locations, whereby the three light transmissive portions 32dA, 32dB, 32dC are formed. A formed structure is also possible.

  In the above embodiment, the positions of the light emitting surfaces 30a of the four first light emitting elements 30A to 30D are displaced from each other in the vehicle width direction to form the four light source images I1a to I1d in the left-right direction. However, the configuration is such that four light source images I1a to I1d are formed side by side in the left-right direction by making the horizontal cross-sectional shapes of the rear surfaces 22b of the four projection lenses 22A to 22D different from each other. Further, it is also possible to adopt a configuration in which four light source images I1a to I1d are formed side by side in the left-right direction by a combination of both.

  Next, a modified example of the above embodiment will be described.

  First, a first modified example of the above embodiment will be described.

  FIG. 8 is a view similar to FIG. 2, showing a vehicle lamp 110 according to the present modification.

  As shown in the figure, the vehicle lamp 110 has a basic configuration similar to that of the vehicle lamp 10 according to the above-described embodiment, but has four independent projection lenses 122A, 122B, 122C, and 122D in common. This is different from the case of the above-described embodiment in that it is supported by the lamp body 12 via a support member 124.

  Each of the projection lenses 122A to 122D is configured as a plano-convex lens having a spherical front surface 122a and a flat rear surface 122b.

  The lens support member 124 is formed so as to surround the projection lenses 122A to 122D and is supported by the lamp body 12 at both left and right ends thereof.

  Even when the configuration of this modification is adopted, the second light distribution pattern PR2 can be formed with a compact configuration, as in the case of the above embodiment.

  Next, a second modification of the above embodiment will be described.

  FIG. 9 is a view similar to FIG. 3, showing a vehicular lamp 210 according to this modification.

  As shown in the figure, the basic structure of the vehicular lamp 210 is the same as that of the vehicular lamp 10 according to the above-described embodiment, but the structure of the light source support member 232 is partially different from that of the above-described embodiment. In addition, the first and second reflectors 252 and 254 are additionally arranged between the transparent member 20 and the light source support member 232, which is a difference from the above embodiment. Along with this, the shapes of the lamp body 212 and the translucent cover 214 are partially different from those in the above-described embodiment.

  The first and second reflectors 252 and 254 are arranged at three positions so as to correspond to the three projection lenses 22A to 22C, respectively. These three sets of first and second reflectors 252 and 254 are integrally formed, and are supported by the lamp body 212 at both left and right ends thereof.

  In FIG. 9, the first and second reflectors 252 and 254 arranged corresponding to the projection lens 22B are shown.

  The first reflector 252 is arranged above the optical axis Ax of the projection lens 22B, and the second reflector 254 is arranged below the optical axis Ax.

  The light source support member 232 is formed with a light transmitting portion 232aB whose opening shape is expanded above the light transmitting portion 32aB formed in the light source supporting member 32 of the above-described embodiment, whereby the second light emitting element is formed. Light emitted from 40B to the upper side of the projection lens 22B reaches the first reflector 252.

  The first reflector 252 has a light emission center of the light emitting surface 40a of the second light emitting element 40B as a first focal point, and also has a point A located below the optical axis Ax between the transparent member 20 and the light source support member 232. It has a reflecting surface 252a composed of a spheroid of two focal points.

  On the other hand, the second reflector 254 has a reflecting surface 254a formed by a paraboloid of revolution whose point is the point A. Then, the second reflector 254 is configured such that the light from the second light emitting element 40B, which is reflected by the reflecting surface 252a of the first reflector 252 and converges to the point A, is substantially parallel to the vehicle front in the space below the projection lens 22B. It is designed to be reflected as light.

  FIG. 10A is a perspective view showing a high-beam light distribution pattern PR formed by the irradiation light from the vehicular lamp 210.

  This high-beam light distribution pattern PR includes a first light distribution pattern PR1 shown in FIG. 10 (b), a second light distribution pattern PR2 shown in FIG. 10 (c), and a third light distribution pattern PR shown in FIG. 10 (d). It is formed as a combined light distribution pattern with the light pattern PR3.

  The third light distribution pattern PR3 shown in FIG. 10D is formed together with the second light distribution pattern PR2 shown in 10C when the three second light emitting elements 40A to 40C are simultaneously turned on. The light distribution pattern includes three light distribution patterns P3a, P3b, and P3c formed by reflected light from the three sets of first and second reflectors 252 and 254.

  The third light distribution pattern PR3 is formed as a spot-shaped light distribution pattern centered on HV.

  Even when the configuration of this modification is adopted, the second light distribution pattern PR2 can be formed with a compact configuration, as in the case of the above embodiment.

  In addition, in this modification, since the spot-shaped third light distribution pattern PR3 is additionally formed, the visibility of the distant region of the vehicle forward traveling path can be further enhanced.

  Note that, instead of the configuration in which the third light distribution pattern PR3 is formed as a spot-shaped light distribution pattern by the reflected light from the second reflector 254 as in the present modification, a light distribution pattern that diffuses in the horizontal direction is used. It is also possible to form. For example, after the low beam light distribution pattern is formed by irradiation light from another lamp unit (not shown), the diffusion region of the low beam light distribution pattern is formed by the reflected light from the second reflector 254. It is also possible to do so.

  Next, a third modification of the above embodiment will be described.

  FIG. 11 is a view similar to FIG. 2, showing a vehicle lamp 310 according to the present modification.

  As shown in the figure, the basic configuration of the vehicular lamp 310 is the same as that of the vehicular lamp 10 according to the above-described embodiment, but the four first light emitting elements 30A, 30B, 30C, 30D and the three first light emitting elements 30A, 30B, 30C, 30D. The positional relationship with the two light emitting elements 40A, 40B, and 40C is reversed.

  Accordingly, the positional relationship between the common light source support member 332 that supports the four first light emitting elements 30A to 30D and the common light source support member 342 that supports the three second light emitting elements 40A, 40B, 40C is also reversed. It has become. Then, the light source support member 342 is provided with light transmitting portions 342aA, 342aB, 342aC, 342aD for transmitting the emitted light from each of the second light emitting elements 30A to 30D forward and making the light incident on the projection lenses 22A to 22D. It is formed at four locations spaced from each other in the vehicle width direction.

  At that time, the amount of forward displacement of the second light emitting elements 40A to 40C from the rear focus F of the light emitting surface 40a is greater than the amount of rearward displacement of the first light emitting elements 30A to 30D from the rear focus F of the light emitting surface 30a. Is also set to a small value. In order to realize this, the depth dimension of the lamp body 312 of this modification is slightly larger than that of the lamp body 12 of the above-described embodiment.

  In the present modification, the four first light emitting elements 30A to 30D are turned on at the same time to form a first light distribution pattern substantially similar to the first light distribution pattern PR1 of the above-described embodiment, and three first light distribution patterns PR1 are formed. By turning on the second light emitting elements 40A to 40C at the same time, a second light distribution pattern that is substantially the same as the second light distribution pattern PR2 of the above-described embodiment is formed.

  Even when the configuration of this modification is adopted, the second light distribution pattern PR2 can be formed with a compact configuration, as in the case of the above embodiment.

  Next, a fourth modified example of the above embodiment will be described.

  FIG. 12 is a view similar to FIG. 3, showing a vehicle lamp 410 according to the present modification.

  As shown in the figure, the basic configuration of the vehicular lamp 410 is similar to that of the vehicular lamp 10 according to the above-described embodiment, but three second light emitting elements 40A, 40B, 40C (see FIG. (Only two light emitting elements 40B are shown) are supported by a common light source support member 442 with its light emitting surface 40a facing downward, and three second light source support members 442 are provided below the light source support member 442. This is different from the case of the above embodiment in that the third reflectors 456 are respectively arranged at the positions corresponding to the light emitting elements 40A, 40B, 40C.

  Along with this, the outer shape of the light source support member 432 and the shapes of the lamp body 412 and the translucent cover 414 are partially different from those in the above-described embodiment.

  The third reflectors 456 arranged at three positions are integrally formed with each other, and are supported by the lamp body 412 at both left and right ends thereof.

  The third reflector 456 has an upper reflecting surface 456a arranged at a position that vertically extends over the optical axis Ax, and a lower reflecting surface 456b arranged diagonally below and below the upper reflecting surface 456a.

  The upper reflection surface 456a has a light emission center of the light emitting surface 40a of the second light emitting element 40B as a first focal point, and also has a point B located on the optical axis Ax in front of the light source support member 432 as a second focal point. It is composed of a spheroid. Then, the upper reflection surface 456a reflects the light from the second light emitting element 40B as converged light traveling toward the point B and makes it reach the projection lens 22B via the light transmitting portion 432aB.

  The lower reflecting surface 456b is a paraboloid of revolution whose focal point is the light emission center of the light emitting surface 40a of the second light emitting element 40B. The lower reflecting surface 456b reflects the light from the second light emitting element 40B toward the front of the vehicle in the space below the projection lens 22B as substantially parallel light.

  The light source support member 432 of the present modification example is set such that the position of the lower end edge thereof is higher than that of the light source support member 32 of the above-described embodiment in order not to inadvertently shield the reflected light from the lower reflection surface 456b. ing.

  In this modification, the irradiation light from the vehicular lamp 410 forms a high-beam light distribution pattern that is substantially the same as the high-beam light distribution pattern PR shown in FIG.

  Therefore, even when the configuration of the present modification is adopted, the second light distribution pattern PR2 can be formed with a compact configuration, as in the case of the above-described embodiment, and further, in the case of the third modification. Similarly, by additionally forming the spot-shaped third light distribution pattern PR3, it is possible to further improve the visibility of the distant region of the vehicle front traveling path.

  It is needless to say that the numerical values shown as the specifications in the above-described embodiment and its modifications are merely examples, and may be set to different values as appropriate.

  Further, the invention of the present application is not limited to the configurations described in the above-described embodiment and its modified examples, and configurations with various modifications other than this can be adopted.

2 Oncoming vehicles 10, 110, 210, 310, 410 Vehicle lamps 12, 212, 312, 412 Lamp bodies 14, 214, 414 Light-transmitting cover 20 Transparent member 20a Flange portions 22A, 22B, 22C, 22D, 122A, 122B, 122C, 122D Projection lens 22a, 122a Front surface 22b, 122b Rear surface 30A, 30B, 30C, 30D First light emitting element 30a, 40a Light emitting surface 32, 42, 232, 332, 342, 432, 442 Light source support member 32aA, 32aB, 32aC , 32bA, 32bB, 32bC, 32cA, 32cB, 32cC, 32dA, 32dB, 32dC, 232aB, 342aA, 342aB, 342aC, 342aD, 432aB Light transmissive portions 40A, 40B, 40C Second light emitting element 124 Lens support member 52 1st reflector 252a, 254a Reflecting surface 254 2nd reflector 456 3rd reflector 456a Upper reflecting surface 456b Lower reflecting surface A, B point Ax Optical axis F Rear focal point I1a, I1b, I1c, I1d, I2a, I2b, I2c Light source Image P0, PL, PR Light distribution pattern for high beam P1 Light distribution pattern P3a, P3b, P3c where part of the light distribution pattern for high beam is missing Light distribution pattern PL1, PR1 First light distribution pattern PL2, PR2 Second light distribution Light pattern PR3 Third light distribution pattern

Claims (3)

A plurality of projection lenses arranged in parallel in a required direction intersecting the vehicle front-rear direction, and a plurality of first light emitting elements arranged behind the plurality of projection lenses are provided. A vehicle lighting device configured to form a first light distribution pattern by irradiating light forward through each of the projection lenses,
At least one second light emitting element is disposed behind a common light source support member that supports the plurality of first light emitting elements,
The light source support member is formed with at least one light transmitting portion for transmitting light emitted from the at least one second light emitting element to the front,
A second light distribution pattern is formed by irradiating the light emitted from the at least one second light emitting element forward through the at least one light transmitting portion and the plurality of projection lenses. A vehicular lamp comprising:   The vehicular lamp according to claim 1, wherein each of the at least one light-transmitting portion is formed of a through hole formed in the light source support member. The at least one second light emitting element is composed of a plurality of second light emitting elements arranged in parallel in the required direction,
The vehicular lamp according to claim 1 or 2, wherein the at least one light-transmitting portion is composed of a plurality of light-transmitting portions arranged in parallel in the required direction.

Images