JP6943697B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lamp, and more specifically, an optical system having a configuration in which a substantially L-shaped display unit is displayed by light emitted from a light source arranged in a region other than the region immediately after the display unit. Regarding vehicle lamps with.

Conventionally, in a vehicle lamp having a substantially L-shaped display unit, as a method of displaying the display unit, a method of arranging a plurality of light sources at predetermined intervals along the display area immediately after the display area (for example, , Patent Document 1), or a method of arranging a light guide along the display area immediately after the display area (for example, Patent Document 2) is disclosed.

Patent Document 1 includes a tail & stop lamp unit in which both ends are bent in an L shape on a combination lamp, and the tail & stop lamp unit has a first inner lens and a first inner lens in a space partitioned by a housing and an extension. It has a configuration in which the two inner lenses are housed and a plurality of light sources are arranged at predetermined intervals along the first inner lens immediately after the first inner lens.

Patent Document 2 includes a substantially U-shaped clearance lamp in a vehicle lamp, and the clearance lamp emits light emitted from a light source in one corner along the inner lens immediately after the substantially U-shaped inner lens. It has a configuration in which a light guide member including an incident light incident portion is arranged.

JP-A-2017-27823 JP 2015-133212

By the way, in the configuration in which a plurality of light sources are arranged at predetermined intervals along the display area immediately after the display area (Patent Document 1), the length of the display area is long in order to ensure the brightness uniformity of the display area. As the number of light sources needs to be increased, it becomes a factor of increasing the manufacturing cost. Further, since the region immediately before the light source appears to shine brightly in a spot shape as compared with other regions, it is difficult to ensure the brightness uniformity of the display region.

On the other hand, in the configuration in which the light guide body is arranged along the display area immediately after the display area (Patent Document 2), the length of the light guide body needs to be increased as the length of the display area becomes longer. As the length of the light guide body increases, the amount of light (light amount) guided to a position far from the light source decreases, and it is difficult to ensure the uniformity of brightness in the display area. Further, the light guide has a small degree of freedom in lens cutting and has a limit in controlling the light distribution of the emitted light, so that the desired light distribution characteristic is not always obtained.

Therefore, the present invention has been devised in view of the above problems, and an object of the present invention is to provide a vehicle lamp capable of ensuring the brightness uniformity of a display portion bent in a substantially L shape. It is in.

In order to solve the above problems, the invention according to claim 1 of the present invention includes a light source, a first inner lens that takes in and guides light emitted from the light source, and outputs light from the first inner lens. A reflector having a reflecting surface that reflects light emitted forward is provided, and the first inner lens is located immediately in front of the light source, and the reflecting surface of the reflector is located adjacent to the first inner lens to reflect the light. The surface has a shape bent in a substantially L shape and is composed of a first reflecting surface portion extending to one side adjacent to the light source and a second reflecting surface portion extending to the other side. have a second light emitting unit for emitting toward the second reflecting surface portion and the first light emitting unit for emitting toward the light guided to the first inner lens to the first reflective surface, The first light guide emitting portion has a total reflecting surface formed of an inclined system curved surface having a mortar shape that radiates the light guided by the first inner lens toward the first reflecting surface portion. The second light guide emitting portion has an extension portion that extends along the first reflection surface portion, and the extension portion that directs the light guided by the first inner lens to the extension portion in the extension direction of the extension portion. It is characterized by having a total reflecting surface formed of an inclined plane inclined in the extension direction, and a total reflecting surface for directing light guided by the extension portion toward the second reflection surface portion.

Further, the invention described in claim 2 of the present invention, Oite to claim 1, wherein the light source is an LED element and the light-emitting source, wherein the first inner lens is the LED and the position of the focal position of the LED element It is characterized by having a light incident surface composed of a rotating hyperboloid obtained by rotating a hyperboloid having the optical axis of the element as the main axis with the main axis as the rotating axis.

Further, the invention described in claim 3 of the present invention is characterized in that, in claim 1 or 2 , a shielding member is arranged immediately in front of the first inner lens.

Further, in the invention described in claim 4 of the present invention, in any one of claims 1 to 3 , the second inner lens is located in front of the reflecting surface of the reflector, and the second inner lens is the second inner lens. It is characterized by having a lens cut portion in which a lens cut is applied in a region along the reflective surface immediately before the reflective surface.

Further, the invention according to claim 5 of the present invention is characterized in that, in claim 4 , the outer lens is located in front of the second inner lens.

According to the present invention, the first inner lens is arranged immediately in front of the light source, and the reflecting surface is arranged adjacent to the first inner lens. The reflecting surface has a shape bent in a substantially L shape and is composed of a first reflecting surface portion extending to one side adjacent to the light source and a second reflecting surface portion extending to the other side. A first light guide emitting unit that emits light guided by the first inner lens toward the first reflecting surface portion and a second light guide emitting portion that emits light directed toward the second reflecting surface portion are provided.

As a result, by arranging the light source and the first inner lens at appropriate positions, the light emitted from the light source is not directly emitted to the outside from the substantially L-shaped display portion located immediately in front of the reflecting surface. The brightness uniformity of the display unit can be ensured, and the light emitted from the light source can be efficiently used by forming the first inner lens into an appropriate shape to realize a bright display unit. Further, by providing the shielding member, it is possible to provide a lighting fixture for a vehicle having a good appearance.

It is a partial front view of the vehicle lamp of the 1st Embodiment which concerns on this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. FIG. 1 is a cross-sectional view taken along the line BB of FIG. It is a vertical sectional view of a light source unit. It is a front view of the 1st inner lens. FIG. 5 is a cross-sectional view taken along the line CC of FIG. FIG. 5 is a cross-sectional view taken along the line DD of FIG. It is explanatory drawing of the positional relationship between the LED element and the light incident surface of the 1st inner lens. It is an optical path diagram of the light emitted from the LED element and incident on the first inner lens. It is a partial front view of a reflector. It is an optical path diagram using the CC sectional view of FIG. It is the figure which showed typically the positional relationship of the 1st inner lens and the composite reflection surface of a reflector in the front view. FIG. 5 is an optical path diagram using a cross-sectional view taken along the line AA of FIG. It is an optical path diagram which used the DD sectional view of FIG. It is a partial front view of a vehicle lamp. It is explanatory drawing of 2nd Embodiment. It is explanatory drawing of 3rd Embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 17 (the same parts are designated by the same reference numerals). Since the embodiments described below are suitable specific examples of the present invention, various technically preferable limitations are added, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

The following description describes a vehicle lighting fixture (rear combination lamp) that is integrally configured by accommodating multiple function lamps such as tail & stop lamps, turn signal lamps, backup lamps, etc., which have different display functions. Among the plurality of functional lamps, the tail & stop lamp using the configuration of the optical system according to the present invention is used.

1 is a partial front view of the vehicle lamp of the first embodiment, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG.

The tail & stop lamp 2 constituting the vehicle lighting equipment (rear combination lamp) 1 of the first embodiment is made of an insulating resin material, and has an opening (not shown) and a bottom portion 3a facing the opening. A light chamber 5 formed of a closed space is formed by 3 and an outer lens 4 formed of a transparent resin material and attached to the opening so as to close the opening of the housing 3, and a light source unit is formed in the light chamber 5. 10. The first inner lens 20 that controls the optical path of the emitted light from the light source unit 10, the shielding member 70 that covers the light source unit 10 including the first inner lens 20, and the light distribution of the emitted light from the first inner lens 20. It includes a reflector 60 that controls the light, and a second inner lens 80 that further controls the light distribution controlled by the reflector 60.

The shielding member 70 uses a part of a reflector or the like used for other functional lamps constituting the vehicle lamp 1 as a shielding member.

As shown in FIG. 4 (cross-sectional view), the light source unit 10 is a socket with a coupler called a DICS (Direct Coupler Socket), and a plurality of LED elements 12 each of which is a light emitting source are formed in a plane at predetermined intervals. The light source module 11 which is mounted and sealed with a translucent sealing resin 13 and integrated with the light source module 11 has a configuration in which the light source module 11 is mounted and fixed to the socket body 14.

The socket body 14 is made of a metal material and is provided with heat radiating fins 14a, and has a function of radiating heat generated when each LED element 12 is lit (light emitting) and suppressing a temperature rise of the LED element 12. There is. The light source unit 10 is attached to the bottom portion 3a of the housing 3 via the socket body 14.

The first inner lens 20 is located immediately in front of the light source unit 10 (light emission direction), and is shown in FIGS. 5 (front view), 6 (CC cross-sectional view of FIG. 5) and 7 (DD of FIG. 5). As shown in the cross-sectional view), the light input unit 25 that takes in the light emitted substantially radially from each LED element 12 and converts it into substantially parallel light, and the light that is substantially parallelized by the light input unit 25 to a predetermined position. It has a light guide unit 30 for guiding light and a light guide emitting unit 35 for guiding and emitting light guided by the light guide unit 30 in a predetermined direction.

The light entry unit 25 has a substantially conical shape, and the pointed end surface of the light input unit 25 is a surface facing the light emission surface 11a of the light source module 11 of the light source unit 10 and emits light from the light source module 11. It is a light incident surface 26 to be taken in.

As shown in FIG. 8 (explanatory view of the positional relationship between the LED element and the light incident surface of the first inner lens), the light incident surface 26 focuses on the position of each LED element 12 mounted on the LED module 11. the hyperbola spindle optical axis X ₁ of LED elements 12 with the position of F, rotational hyperboloid 27 obtained by rotating have continuously formed shape as the rotation axis main shaft, As shown in FIG. 9 (optical path diagram), the light emitted substantially radially from each LED element 12 of the light emitting source and applied to the light incident surface 26 is refracted in the condensing direction by each rotating double curved surface 27. The light is taken into the light input unit 25 as substantially parallel light.

In the present embodiment, as described above, the light emitted substantially radially from the LED element 12 is refracted by the light incident surface 26 of the light entering unit 25 and converted into substantially parallel light, but it is not necessarily parallel light. It is not necessary, and the light taken into the light input unit 25 is refracted to such an extent that the light taken into the light input unit 25 is directed toward the first total reflection surface 41 of the first light guide emission unit 40 and the second total reflection surface 52 of the second light guide emission unit 50. It may be light (reflected light).

Guiding portion 30 extends in a substantially cylindrical shape along the light input portion 25 to the optical axis X _1.

Referring back to FIGS. 5-7, the light emitting unit 35 is connected to the light guide portion 30, a first lead to one of the semicircular side the position of the center axis X ₂ of the substantially cylindrical light guide portion 30 as a substantially boundaries The light guide emitting unit 40 and the second light guide emitting unit 50 connected to the other semicircular side with the position of the _{central axis X 2 as a substantially boundary have different shapes.}

Among them, one first light emitting unit 40 connected to the semicircular side of the light guide portion 30, on the side facing the light incident surface 26, with respect to the central axis X ₂ from the central axis X ₂ of the light guide section 30 mortar Te obtained the central axis X ₂ a straight line outwardly open by a half rotation as the rotation shaft toward the side opposite to the light incident surface 26 side, toward the central axis X ₂ of semicircular upper periphery 41a It has a total reflection surface (first total reflection surface 41) formed of an inclined curved surface having a concave shape. Further, a light emitting surface (first light emitting surface 42) formed of an annular inclined system curved surface extending from the semicircular upper end outer peripheral 4a of the first total reflection surface 41 toward the oblique light incident surface 26 side along the upper end outer peripheral 41a. have.

Also, the other second light emitting unit 50 connected to the semicircular side of the light guide portion 30 along the straight portion corresponding to the chord of the semi circle side, the direction along the central axis X ₂ thickness direction, the thickness direction It has a substantially plate-shaped extension portion 51 extending outward in a substantially radial direction with a vertical direction as a width direction.

The extension portion 51 rises from the semi-circular side of the light guide portion 30 from a position slightly beyond _{the central axis X 2 on the semi-circular side along the central axis X 2} and projects laterally from the light guide portion 30. are extended, the rising portion, the total reflection surface an inclined plane which is inclined in the direction along the central axis X ₂ toward the opposite side to the light incidence surface 26 side from the rising position (tilted in the thickness direction) (second The surface on the side along the straight portion corresponding to the semicircular chord, which has a total reflecting surface 52), is composed of a light emitting surface (second light emitting surface 57) whose almost entire surface is a substantially flat surface, and the surface on the opposite side is composed of a light emitting surface (second light emitting surface 57). A total reflection surface (third) consisting of two planes (first plane 55a and second plane 55b) 55 substantially parallel to the second light emitting surface 57 and two inclined surfaces inclined inward in a curved manner toward the tip side. The total reflecting surface 56a and the fourth total reflecting surface 56b) 56 are formed alternately and are configured to become narrower toward the tip side.

As shown in FIG. 10 (front view), the reflector 60 has a shape in which two reflectors 60 and 90 bent in a substantially L shape are connected to each other, and in the present embodiment, the first inner lens 20 has a shape. A substantially L-shaped reflector 60 on the adjacent side constitutes an optical system that controls the optical path of the light emitted from the light source unit 10. Hereinafter, the reflector 60 on the side adjacent to the first inner lens 20 will be described.

The reflector 60 has both side portions 61, 61 and a bottom portion 62, and the bottom portion 62 bent in a substantially L shape is arranged at the bottom portion of the housing 3 along 3a, and the bottom portion 62 of the housing 3 A composite reflecting surface 63 is provided on the bottom surface on the surface (surface) opposite to the surface facing 3a, in which a plurality of reflecting surfaces (mirror surface reflecting surfaces) having different shapes are continuously formed.

The composite reflecting surface 63 of the bottom portion 62 extending in a substantially L shape has a semicircular shape of the first inner lens 20 from a part of the outer edge portion 64a region in the reflecting surface portion (first reflecting surface portion 64) extending to one side. The first light guide emitting portion 40 projects, and the extension portion 51 of the second light guide emitting portion 50 of the first inner lens 20 is located along the extension direction of the outer edge portion 64a.

Further, the reflective surface portion (second reflective surface portion 65) extending to the other side of the composite reflective surface 63 is on the extension portion 51 side of the second light guide emission portion 50 of the first inner lens 20 in the extension direction of the extension portion 51. On the other hand, it extends in the direction away from it.

In other words, the reflector 60 is formed in a shape in which the composite reflecting surface 63 provided on the bottom portion 62 is bent in a substantially L shape in a front view, and the outer edge portion 64a of the first reflecting surface portion 64 extending to one side is formed. A part of the region is cut out in a semicircular shape, and the semicircular first light guide emitting portion 40 of the first inner lens 20 is observed from that portion, and the second reflecting surface portion 65 extending to the other side is the first. 1 The inner lens 20 extends in a direction away from the extension direction of the extension portion 51 of the second light guide emission portion 50.

The shielding member 70 is arranged in front of the first inner lens 20 so as to cover the light source unit 10 located behind the first inner lens 20 and the first inner lens 20. In this case, the shielding member 70 is arranged so as to cover the first inner lens 20 and at the same time cover the vicinity region of the first light guide emitting portion 40 of the first inner lens 20 of the first reflecting surface portion 64. There is.

As described above, the shielding member 70 is used as a shielding member by using a part of the reflectors of other functional lamps constituting the vehicle lamp 1 in combination, but it may be provided only for shielding. It is possible.

The second inner lens 80 is arranged in front of the reflector 60, and a lens cut portion 82 having a lens cut 81 is provided in a substantially L-shaped region along the reflector 60 in front of the reflector 60. Although the lens cut 81 is provided on the surface opposite to the reflector 60 in the present embodiment, it may be provided on the surface on the reflector 60 side. A transparent outer lens 4 is arranged in front of the second inner lens 80 (see FIG. 2).

Next, the optical path formation of the vehicle lighting equipment (rear combination lamp) of the first embodiment according to the above configuration will be described below. In the following description of the optical path, the positional relationship between the first inner lens 20 and the composite reflecting surface 63 of the reflector 60 bent in a substantially L shape will be described with reference to FIG. 12, which schematically shows the positional relationship in a plan view.

As shown in FIG. 9, of the light emitted radially from each LED element 12 mounted on the light source module 11 of the light source unit 10 toward the light incident surface 26 of the light incident portion 25 of the first inner lens 20. The light La that reaches the semicircular region on the first light guide emitting portion 40 side of the light incident surface 26 of the light entering portion 25 has a continuous rotating bi-curved surface 27 with the position of each LED element 12 as the focal point F position. It is refracted by the light incident surface 26 formed in the above, becomes parallel light, enters the light entering unit 25, and is guided as it is in the substantially semi-cylindrical portion of the light guide unit 30, and has a mortar shape of the first light guide emitting unit 40. It reaches the first total reflection surface 41 composed of the inclined system curved surface of.

Then, as shown in FIG. 11 (optical path diagram using the CC cross-sectional view of FIG. 5), the light La reaching the first total reflection surface 41 is from the annular inclined system curved surface on the first total reflection surface 41. It is totally reflected radially toward the first light emitting surface 42, refracted by the first light emitting surface 42, and emitted radially as it is.

As shown in FIG. 12, the light La radially emitted from the first light emitting surface 42 is one of the composite reflecting surfaces 63 bent in a substantially L shape of the reflector 60 adjacent to the first light emitting surface 42. The first reflecting surface portion 64 extending to the side is radially emitted toward the vicinity region (A) of the first light emitting surface 42 of the first inner lens 20, and FIG. 13 (AA cross-sectional view of FIG. 1 is used. As shown in the optical path diagram), the reflected light whose optical path is controlled (light distribution control) by the first reflecting surface portion 64 faces the lens cut portion 82 of the second inner lens 80 located in front of the lens cut 81. The light path is further controlled (light distribution control) by the lens cut portion 82, and the light is transmitted to the outside as it is through the transparent outer lens 4 located in the front.

On the other hand, as shown in FIG. 9, the light emitted radially from each LED element 12 mounted on the light source module 11 of the light source unit 10 toward the light incident surface 26 of the light incident portion 25 of the first inner lens 20. Of these, the light Lb that reaches the semicircular region on the second light guide emission portion 50 side of the light incident surface 26 of the light entering portion 25 is light incident composed of a rotating bi-curved surface with the position of the LED element 12 as the focal point F position. It is refracted by the surface 26 to become parallel light, which is incident on the light entering portion 25, and is guided as it is in the substantially semi-cylindrical portion of the light guide portion 30, and is composed of an inclined plane of the extension portion 51 of the second light guide emitting portion 50. It reaches the second total reflecting surface 52.

Then, as shown in FIG. 14 (optical path diagram using the DD cross-sectional view of FIG. 5), the light Lb reaching the second total reflection surface 52 is totally reflected by the second total reflection surface 52 and is an extension portion. The inside of the 51 is guided toward the tip side, and as shown in FIG. 12, the inside of the extension portion 51 is substantially represented by a third total reflection surface 56a and a fourth total reflection surface 56b, each of which is an inclined surface during the light guidance. The second light emitting surface 57, which is completely reflected toward the second light emitting surface 57 made of a flat surface, extends from the second light emitting surface 57 toward the second reflecting surface portion 65 extending from the second light emitting surface 57 to the other side of the composite reflecting surface 63 bent in a substantially L shape of the reflector 60. Is emitted as substantially parallel light.

At this time, the light Lba that is totally reflected by the third total reflection surface 56a and emitted to the outside from the second light emission surface 57 heads toward the region (B) extending to the tip region via the outer region of the second reflection surface portion 65. The light Lbb that is totally reflected by the fourth total reflecting surface 56b and emitted to the outside from the second light emitting surface 57 heads for the region (C) extending to the tip region through the inner region of the second reflecting surface portion 65.

In other words, the light Lba that is guided through the extension 51 of the second light guide emitting portion 50 of the first inner lens 20 and is totally reflected by the third total reflection surface 56a and is totally reflected by the fourth total reflection surface 56b. The light Lbb and the light Lbb head toward the region covering the entire surface of the second reflecting surface portion 65 of the composite reflecting surface 63.

Then, similarly to the light reflected by the first reflecting surface portion 64 described above, the lens cut 81 of the second inner lens 80 in which the reflected light whose optical path is controlled (light distribution control) by the second reflecting surface portion 65 is located in front is applied. The light path is further controlled (light distribution control) by the lens cut portion 82, and the light is transmitted to the outside as it is through the transparent outer lens 4 located in front of the lens cut portion 82.

As a result, the emitted light from the LED element 12 mounted on the light source module 11 mounted and fixed to the light source unit 10 is converted into parallel light and taken into the first inner lens 20, and the captured light is taken into the first light guide emitting unit 40. 6a of the display unit 6 adjacent to the light source unit 10 (first inner lens 20) by the light emitted from the first light guide emitting unit 40, which is distributed substantially evenly to each of the second light guide emitting unit 50 and the second light guide emitting unit 50. Is emitted and displayed, and the portion 6b of the display unit 6 that is bent and extended with respect to the portion 6a that extends adjacent to the light source unit 10 (first inner lens 20) due to the emitted light from the second light guide emitting unit 50. Is displayed by light emission (see FIG. 15 (partial front view of vehicle lighting equipment)).

As described above, the vehicle lamp of the present embodiment irradiates the display unit bent in a substantially L shape with the light emitted from the light source unit arranged adjacent to the display unit on the outside of the display unit to display light emission. Therefore, the first inner lens is arranged in front of the light source unit, the optical path of the light that guides the inside of the first inner lens is controlled, and the emitted light is irradiated toward the composite reflection surface of the reflector. I tried to do it.

Specifically, of the light emitted from the light source unit and guided through the first inner lens, approximately half of the light is radially controlled by the first light guide emitting portion and the controlled light is the first. The light is radiated toward the first reflecting surface portion of the reflector adjacent to the inner lens, and the other approximately half of the light is optical path controlled by the second light guide emitting portion along the extension direction of the second reflecting surface portion of the reflector. The controlled light is emitted toward the first reflecting surface portion of the reflector along the extension direction of the second reflecting surface portion.

Therefore, since the optical path of the irradiation light irradiated to the composite reflecting surface of the reflector is appropriately controlled by the first inner lens, the composite reflecting surface can be efficiently irradiated with a small number of light sources. As a result, it is possible to suppress an increase in manufacturing cost with respect to the extension of the composite reflective surface.

At the same time, a shielding member that covers the light source unit including the first inner lens is provided to prevent the leaked light from the light source unit and the first inner lens from being emitted to the outside.

As a result, by arranging the light source unit at an appropriate position, the light source light is not directly emitted from the display unit to the outside, so that the brightness uniformity of the substantially L-shaped display unit can be ensured and the first inner By appropriately shaping the lens, the light emitted from the light source can be efficiently used to realize a bright display unit. Further, by providing a shielding member that covers the light source unit including the first inner lens, it is possible to realize a good-looking vehicle lamp.

As an application example of the above embodiment (first embodiment), for example, the embodiments of FIG. 16 (second embodiment) and FIG. 17 (third embodiment) can be considered.

In the second embodiment, the shape of the second light guide emitting unit 50 of the first inner lens 20 of the first embodiment is changed. Specifically, in the above embodiment, the second light guide emitting unit 50 is changed. while extension 51 of is extended in one radially outward with respect to the central axis X ₂ of the light guide section 30, in this embodiment, the extension portion 51 of the second light emitting unit 50 It was extended to face radially outwardly of the opposite directions with respect to the central axis X ₂ of the light guide portion 30.

At the same time, a pair of first reflecting surface portions 64 extending adjacent to the first inner lens 20 and a pair of first reflecting surface portions 64 bent to substantially the same side from both ends of the first reflecting surface portion 64 so as to extend the shape of the composite reflecting surface 63 of the reflector 60. The shape has two reflecting surface portions 65, and the shape of the lens cut portion 82 of the second inner lens 80 arranged in front of the reflector 60 is made to follow the shape of the reflector 60.

As a result, the light La emitted from the first light emitting surface 42 guided through the inside of the first light guide emitting portion 40 of the first inner lens 20 extends adjacent to the first inner lens 20 of the reflector 60. The third light is guided through the extension 51 of the second light emitting part 50, which is extended so as to face outward in the radial direction in opposite directions toward the region (A) of the 1 reflecting surface portion 64. The light Lba that is totally reflected by the total reflecting surface 56a and emitted to the outside from the second light emitting surface 57 heads for the region (B) extending to the tip region through the outer region of the pair of second reflecting surface portions 65, and each of the second light Lba. 4. The light Lbb that is totally reflected by the total reflecting surface 56b and emitted to the outside from the second light emitting surface 57 heads for a region (C) extending to the tip region through the inner region of each of the second reflecting surface portions 65.

Then, the light reflected by the first reflecting surface portion 64 of the reflector 60 and the pair of second reflecting surface portions 65 reaches the lens cut portion 82 of the second inner lens 80 arranged in front of the reflector 60, and the lens cut portion 82 The light distribution is controlled and the light is emitted to the outside through the outer lens 4 located in front of the lens.

As a result, the display portion of the vehicle lighting fixture having a shape along the reflector 60 is emitted and displayed in a bright and uniform brightness state.

The third embodiment has a configuration in which the two of the second embodiments are arranged facing each other in a state where the tips of the second reflecting surface portions 65 of the reflector 60 are joined to each other, and the composite reflection of the reflector 60 is performed. The surface 63 is formed in an annular shape. Along with this, the shape of the lens cut portion 82 of the second inner lens 80 arranged in front of the reflector 60 is made to follow the shape of the reflector 60.

As a result, the emitted light of each of the two first inner lenses 20 located on the outside is directed to the composite reflecting surface 63 of the reflector 60 formed in an annular shape, and the reflected light by the composite reflecting surface 63 is directed to the front of the reflector 60. It reaches the annular lens cut portion 82 of the arranged second inner lens 80, is controlled by the lens cut portion to distribute 82 light, and is emitted to the outside via the outer lens 4 located in the front.

As a result, the annular display portion of the vehicle lamp along the annular reflector 60 is emitted and displayed in a bright and uniform brightness state.

1 ... Vehicle lighting equipment (rear combination lamp)
2 ... Tail & stop lamp 3 ... Housing 3a ... Bottom 4 ... Outer lens 5 ... Light room 10 ... Light source unit 11 ... Light source module 11a ... Light emitting surface 12 ... LED element 13 ... Sealing resin 14 ... Socket body
14a ... Heat dissipation fin 20 ... First inner lens 25 ... Light incident part 26 ... Light incident surface 27 ... Rotating double curved surface 30 ... Light guide unit 35 ... Light guide emission unit 40 ... First light guide emission unit 41 ... First total reflection Surface 41a ... Upper end outer circumference 42 ... First light emitting surface 50 ... Second light emitting part 51 ... Extension 52 ... Second total reflecting surface 55 ... Plane 55a ... First plane 55b ... Second plane 56 ... Total reflecting surface 56a ... 3rd total reflection surface 56b ... 4th total reflection surface 57 ... 2nd light emission surface 60 ... Reflector 61 ... Side 62 ... Bottom 63 ... Composite reflection surface 64 ... 1st reflection surface 64a ... Outer edge 65 ... Second Reflective surface 70 ... Shielding member 80 ... Second inner lens 81 ... Lens cut 82 ... Lens cut 90 ... Reflector

Claims (5)

Light source and
A first inner lens that takes in the light emitted from the light source and guides it.
A reflector having a reflecting surface that reflects the light emitted from the first inner lens forward is provided.
The first inner lens is located immediately in front of the light source, and the reflecting surface of the reflector is located adjacent to the first inner lens.
The reflecting surface has a shape bent in a substantially L shape, and is composed of a first reflecting surface portion extending to one side adjacent to the light source and a second reflecting surface portion extending to the other side.
The first inner lens has a first light guide emitting portion that emits light guided by the first inner lens toward the first reflecting surface portion and a second light guide that emits light toward the second reflecting surface portion. have a and the exit portion,
The first light guide emitting portion has a total reflecting surface formed of an inclined system curved surface having a mortar shape that radiates the light guided by the first inner lens toward the first reflecting surface portion. The second light guide emitting portion has an extension portion extending along the first reflection surface portion, and the extension portion directs the light guided by the first inner lens to the extension portion in the extension direction of the extension portion. A vehicle lighting tool characterized by having a fully reflecting surface formed of an inclined plane inclined in an extension direction and a fully reflecting surface for directing light guided by the extension portion toward the second reflecting surface portion. The light source was obtained by rotating an LED element as a light emitting source, the first inner lens having the position of the LED element as the focal position, and a hyperboloid having the optical axis of the LED element as the main axis, and rotating the main axis as the rotation axis. The vehicle lighting fixture according to claim 1, further comprising a light incident surface formed of a rotating hyperboloid. The vehicle lamp according to claim 1 or 2 , wherein a shielding member is arranged immediately in front of the first inner lens. The second inner lens is located in front of the reflective surface of the reflector, and the second inner lens has a lens cut portion in which a lens cut is applied in a region along the reflective surface immediately before the reflective surface. The vehicle lighting equipment according to any one of claims 1 to 3. The vehicle lamp according to claim 4 , wherein the outer lens is located in front of the second inner lens.

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