法国专利FR3051243A1 VEHICLE FIRE

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专利摘要:
A vehicle light comprises a projection lens (20) made of resin; a light source (30) disposed behind the projection lens (20), the vehicle light being configured such that light from the light source (30) is emitted forwardly through the lens projection (20); a wind generator (60) configured to generate wind; and a wind guiding passage (AP1) configured to guide the wind generated by the wind generator (60) to a position where the wind strikes a surface of the projection lens (20).
公开号:FR3051243A1
申请号:FR1754071
申请日:2017-05-10
公开日:2017-11-17
发明作者:Takayuki Yagi；Ryuho SATO
申请人:Koito Manufacturing Co Ltd；
IPC主号:

专利说明:

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The invention relates to a vehicle light of the projective type.
Description of the Related Art [0002] A projector-type vehicle light is known which is configured such that light from a light source disposed behind a projection lens is transmitted forward through the projection lens.
[0003] As an example of such a vehicle light, Japanese Patent Application Publication No. 2007-227085 (JP 2007-227085 A) discloses a vehicle light comprising a resin projection lens.
The vehicle light disclosed in JP 2007-227085 A has a structure in which a thermal radiation cutoff filter is disposed between the projection lens and a light source.
SUMMARY OF THE INVENTION
By using a resin projection lens, it is possible to reduce the weight of a vehicle light compared to a case where a glass projection lens is used. However, the refractive index and the focal length of the resin projection lens change greatly due to an increase in the temperature of the projection lens. As a result, a light distribution pattern formed by vehicle light irradiation is likely to be degraded (in other words, visibility is reduced compared to a predicted light distribution pattern).
From this point of view, when a thermal radiation cutoff filter is disposed between the projection lens and the light source as described in JP 2007-227085 A, it becomes possible to suppress an increase of the temperature of the projection lens, but the cost of the vehicle fire is increased because the thermal radiation cut-off filter is expensive.
The invention provides a projector-type vehicle light which makes it possible to eliminate a degradation of a light distribution pattern with an inexpensive structure even when a projection lens made of resin is used.
In the invention, a degradation of a light distribution pattern is suppressed by using a structure in which a projection lens is cooled with a blown wind.
An aspect of the invention relates to a vehicle light comprising a projection lens made of resin; a light source which is disposed behind the projection lens, the vehicle light being configured such that light from the light source is emitted forwardly through the projection lens; a wind generator configured to generate wind; and a wind guiding passage configured to guide wind generated by the wind generator into a position where the wind strikes a surface of the projection lens.
A specific structure of the vehicle light according to the aspect described above of the invention is not particularly limited. For example, it is possible to use a structure in which light from the light source enters the projection lens directly, or a structure in which light from the light source enters the projection lens after having been reflected by a reflector.
One type of the "light source" described above is not particularly limited. For example, an electroluminescent element such as a light emitting diode or a laser diode, or a light source bulb or the like may be used.
A specific structure of the. The "projection lens" described above, such as its material and shape, is not particularly limited as long as the projection lens is a projection lens made of resin. Similarly, the "projection lens" may be a single lens or may comprise a plurality of lenses.
[0013] A specific structure and arrangement of the "wind generator" described above is not particularly limited, as long as the wind generator is configured to generate wind. For example, a motor fan, a piezo fan, or the like can be used.
[0014] A specific structure and a wind guiding path of the "wind guiding passage" described above are not particularly limited, as long as the wind guiding passage is capable of guiding the wind generated by the wind generator. wind to a position where the wind hits a surface of the projection lens.
The "surface of the projection lens" struck by the wind guided by the wind guide passage may be a surface or both surfaces of the projection lens.
The vehicle light according to the aspect described above of the invention is configured as a projector-type vehicle light comprising the projection lens made of resin. Since the vehicle fire includes the wind generator configured to generate wind, and the wind guiding passage configured to guide the wind generated by the wind generator to the position where the wind strikes the surface of the projection lens it is possible to effectively cool the projection lens.
Thus, it is possible to suppress an increase in the temperature of the projection lens. Thus, large changes in the refractive index and the focal length of the projection lens are avoided in advance. Therefore, it is possible to effectively remove a degradation of a light distribution pattern formed by the light emitted by the vehicle light.
Moreover, it is possible to obtain the effects described above with the less expensive structure compared to a conventional case where a thermal radiation cut-off filter is provided.
As has been described so far, according to the aspect described above of the invention, in the vehicle light projector type, it is possible to remove a degradation of the light distribution pattern with the inexpensive structure even when the projection lens made of resin is used.
Furthermore, using the structure according to the aspect described above of the invention, it is possible to suppress an increase in the temperature of the projection lens, and to suppress an increase in the temperature of the elements located around the wind guiding passage.
In the aspect described above, the projection lens comprises a first lens and a second lens arranged at a given interval in a front-rear direction; and the wind guide passage may be configured to guide the wind in a space between the first lens and the second lens. With this structure, it is possible to cool the projection lens in an extremely efficient manner.
In the aspect described above, the light source may comprise a light emitting diode supported by a radiator, and the wind generator may be a cooling fan configured to dissipate heat from the radiator. With this structure, since it is not necessary to provide an additional wind generator to cool the projection lens, it is possible to eliminate a degradation of a light distribution pattern with an even less expensive structure.
In the aspect described above, the light source may comprise a plurality of light emitting diodes arranged to form a grid. With this structure, it becomes possible to form light distribution patterns - in different shapes by selectively illuminating a portion of the plurality of light emitting diodes. In this case, since the temperature of the projection lens tends to increase, the use of the structure according to the aspect described above of the invention is particularly relevant.
In the aspect described above, the surface of the projection lens may be subjected to antireflection treatment. With this structure, it is possible to remove a degradation of a light distribution pattern, and improve the fire efficiency.
In this case, the "antireflection treatment" described above may be, for example, a treatment of forming an antireflection film on the surface of the projection lens, or a formation treatment of a crosslinked structure. (moth eye) on the surface of the projection lens.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics, advantages, and technical and industrial importance of the exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like references designate identical elements, and in which:
Figure 1 is a side sectional view of a vehicle light according to one embodiment of the invention;
Fig. 2 is a view in a direction indicated by an arrow II in Fig. 1;
Fig. 3 is a view of a light distribution pattern formed by irradiation of light from the vehicle light;
Fig. 4 is a view similar to Fig. 1, Fig. 4 showing a modified example of the embodiment described above; and
Figure 5 is a view similar to Figure 2, Figure 5 showing the modified example.
DETAILED DESCRIPTION OF THE EMBODIMENTS
An embodiment of the invention is explained below with reference to the drawings.
Figure 1 is a side sectional view of a vehicle light according to one embodiment of the invention. Figure 2 is a view in a direction indicated by an arrow II in Figure 1.
As shown in these drawings, a vehicle light 10 according to the embodiment is a headlamp provided in a front end portion of a vehicle. Vehicle light 10 is configured as a projector type fire unit provided in a fire chamber which is formed by a fire body (not shown) and a cover. plain translucent 12 fixed to cover a front end opening portion of the fire body.
The vehicle light 10 comprises a projection lens 20 having an optical axis Ax extending in a vehicle front-rear direction, a light source unit 30 disposed behind the projection lens 20, and a radiator 40 which supports the light source unit 30.
The projection lens 20 comprises first and second lenses 22, 24 arranged on the optical axis Ax at a given interval in the front-rear direction. External peripheral edge portions of the first and second lenses 22, 24 are supported by a common tubular support 50, and the tubular support 50 is supported by the radiator 40. Particular structures of the projection lens 20 and the tubular support 50 are described later.
The light source unit 30 has a structure in which a plurality (eg approximately 200 to 600) of light emitting diodes 32, which are arranged in a vertical and horizontal direction so as to form a grid, is supported by a common base plate 34. The light emitting diodes 32 are white light emitting diodes, and are arranged in a focal plane on the rear side of the projection lens 20 (i.e. a focal plane comprising a focal point on the side rear view F of the projection lens 20) such that light-emitting surfaces of the light-emitting diodes 32 are oriented towards the front of the fire.
The radiator 40 is an element made of metal, and comprises a body 40A extending along a vertical plane perpendicular to the optical axis Ax, a plurality of heat dissipating fins 40B extending towards the rearwardly from the body 40A, a lower wall portion 40C and sidewall portions 40D extending forwardly from a lower end portion and left and right end portions of the body 40A, and a front end portion 40E disposed at front end portions of the lower wall portion 40C and the pair of right and left side wall portions 40D so as to extend along a vertical plane perpendicular to Axis optical axis. The heat sink fins 40B are formed to extend in an upper-lower direction, and are disposed at given intervals in a right-left direction.
In the radiator 40, the body 40A supports the light source unit 30, and the front end portion 40E supports the tubular support 50.
A cooling fan 60 is attached to the radiator 40 to dissipate the heat of the radiator 40. The cooling fan 60 is arranged to be in contact with the rear end surfaces of the plurality of cooling fins 40. 40B heat dissipation. The cooling fan 60 may be a motor fan (or a piezoelectric fan). The wind generated by a fan body 52 rotating in a vertical plane perpendicular to the optical axis Ax is sent by the cooling fan 60 to a space 40a between the plurality of heat sink fins 40B from the side back of the space 40a.
Specific structures of the projection lens 20 and the tubular support 50 are explained next.
Among the first and second lenses 22, 24 included in the projection lens 20, the first lens 22 located on the front side is a biconvex lens, and the second lens 24 located on the rear side is a concave meniscus lens protruding towards the back side.
The first and second lenses 22, 24 are both a resin lens. More specifically, the first lens 22 is made of polymethylmethacrylate (PMMA) resin, and the second lens 24 is made of polycarbonate resin (PC) or polystyrene resin (PS). Chromatic aberration of the projection lens 20 is thereby minimized.
Anti-reflective treatment is performed on an entire front surface 22a and an entire rear surface 22b of the first lens 22, and an entire front surface 24a and an entire rear surface 24b of the second lens 24. This antireflection treatment is. formed by forming an antireflection film 26 on each of the surfaces of the first and second lenses 22, 24.
The tubular support 50 comprises a first support 52 which supports the first lens 22, a second support 54 which supports the second lens 24 behind the first support 52, and a third support 56 fixed on the first support 52 and the second support 54.
The first support 52 is in contact with an outer peripheral surface of the first lens 22 and an outer peripheral edge portion of the rear surface 22b of the first lens 22, and is also in contact with an outer peripheral surface of the second lens 24 and an outer peripheral edge portion of the front surface 24a of the second lens 24. The second support 54 is in contact with an outer peripheral surface of the second lens 24 and an outer peripheral edge portion of a surface - 24b of the second lens 24. The third support 56 is formed to cover the first support 52, and a rear end portion of the third support 56 is fixed on the second support 54 in a state where an end portion before the third support 56 is in contact with the outer peripheral edge portion of a front surface 22a of the first entille 22.
In a peripheral surface portion of the tubular support 50, an upper opening 50a and a lower opening 50b are formed in a portion between the first lens 22 and the second lens 24. The upper opening 50a extends through a upper end portion of. the peripheral surface portion in the upper-lower direction, and the lower opening 50b extends through a lower end portion of the peripheral surface portion in the upper-lower direction. The upper opening 50a and the lower opening 50b are both formed by cutting portions of the first and third supports 52, 56.
The vehicle light 10 according to the embodiment comprises a API wind guiding passage which guides the wind generated by the cooling fan 60 to a position where the wind strikes the surfaces of the projection lens 20.
In order to form the API wind guiding passage, a pipe 70 extending in the front-rear direction is disposed above the optical axis Ax so as to connect an upper end portion of the radiator 40 and an upper end portion of the tubular support 50.
The conduit 70 has a vent hole 70a extending in the front-rear direction. A rear end portion of the vent hole 70a is bent to the lower side and is open downward, and thus communicates with the space 40a between the plurality of heat sink fins 40B. In addition, a front end portion of the vent hole 70a is open downwardly and communicates with the upper opening 50a of the tubular support 50.
As described above, the API wind guiding passage is formed by the space 40a between the plurality of heat dissipating fins 40B, the vent hole 70a of the duct 70, and the upper opening 50a of the tubular support 50. Once the wind generated by the cooling fan 60 is guided by the API wind guiding passage in a space 20a between the first lens 22 and the second lens 24, the wind is discharged from the space 20a to an outer space through the lower opening 50b of the tubular support 50.
FIG. 3 is a view showing, in perspective, a light distribution pattern formed by light emitted towards the front side of the vehicle light 10 on a virtual vertical screen disposed in a position at a distance of 25 meters. relative to the front of the vehicle.
The light distribution pattern represented by a solid line in the drawing is a PL dipped beam light distribution pattern.
The low beam light distribution configuration PL is a dipped beam light distribution configuration for the left light distribution, and its upper end edge a. clipping lines CLl, CL2 at different levels on the right and left sides. Clipping lines CL1, CL2 extend in the horizontal direction at different levels on the right and left sides of the V-V line which extends vertically through H-V. H-V is a point of disappearance in the direction before fire. A portion on the opposite lane side, which is the right side of the VV line, is formed as a lower cut line CL1, and a portion on the lane side, which is the left side of the line VV, is formed as an upper clipping line CL2 which extends to the upper level through an inclined portion relative to the lower cut line CL1.
The low beam light distribution pattern PL is formed by igniting a portion of the plurality of light emitting diodes 32 disposed in the vertical and horizontal direction so as to form a grid, and projecting light emission surfaces. light of the light-emitting diodes 32 which are lit on the virtual vertical screen in the form of an inverted projection image.
In the low beam light distribution pattern PL, an inflection point E, which is a point of intersection between the lower cut line CL1 and the line VV, is positioned slightly lower than HV, and a zone of high intensity HZ is formed substantially around the point of inflection E. The high intensity zone HZ is formed by increasing values of electric current supplied to a part of the plurality of light-emitting diodes 32 which are lit.
In this drawing, a light distribution pattern represented by a dashed line is a PH traffic light distribution configuration.
The road light light distribution pattern PH is formed by increasing the number of light emitting diodes 32 to be turned on compared to the case where the low beam light distribution pattern PL is formed.
Effects of the embodiment are then explained.
The vehicle light 10 according to the embodiment is configured as a projector type fire unit comprising the projection lens 20 made of resin. Since the vehicle fire 10 includes the cooling fan 60 as a wind generator configured to generate wind, and the API wind guiding passage configured to guide the wind generated by the cooling fan 60 to a position where the wind striking the surfaces of the projection lens 20, it is possible to effectively cool the projection lens 20.
With the structure described above, it is possible to suppress an increase in the temperature of the projection lens 20. Consequently, significant changes in the refractive index and the focal length of the projection lens 20 are avoided in advance. Thus, it is possible to effectively suppress a degradation of a light distribution pattern formed by light emitted by the vehicle light 10. In particular, in the PL dipped beam light distribution pattern, it is possible to to effectively suppress a degradation of the visibility of cleavage lines CLl, CL2.
Furthermore, it is possible to obtain the effects described above with the less expensive structure compared to a conventional case where a thermal radiation cut-off filter is provided.
As has been described so far, according to the embodiment, in the vehicle light of the type projector 10, it is possible to eliminate a degradation of a light distribution configuration, with an inexpensive structure. even when the projection lens 20 made of resin is used.
In addition, by using the structure according to the embodiment, it is possible to suppress an increase in the temperature of the projection lens 20, and to suppress an increase in the temperature of the elements located around the guide passage of AEl wind (eg the tubular support 50 and so on).
The projection lens 20 according to the embodiment has a structure in which the first lens 22 and the second lens 24 are disposed at a given interval in the front-to-back direction, and the API wind guide passage is configured to guide the wind to the gap 20a between the first lens 22 and the second lens 24. Therefore, it is possible to cool the projection lens 20 in an extremely efficient manner.
In this case, in the embodiment, the upper opening 50a which forms part of the API wind guiding passage is at the upper end position in the peripheral surface portion of the tubular support 50 and the lower opening 50b is at the lower end position in the peripheral surface portion of the tubular support 50. As a result, air flows smoothly into the gap 20a between the first lens 22 and the second lens 24.
In addition, in the embodiment, the light source of the vehicle light 10 comprises the light emitting diodes 32 supported by the radiator 40, and the wind generator is the cooling fan 60 configured to dissipate the heat of the radiator 40. Therefore, it is not necessary to provide an additional wind generator to cool the projection lens 20. It is thus possible to eliminate a degradation of a light distribution pattern with a still less expensive structure.
In addition, in the embodiment, the light source of the vehicle light 10 comprises the plurality of light-emitting diodes 32 arranged to form a grid. Therefore, by selectively illuminating a portion of the plurality of light emitting diodes 32, the low beam light distribution pattern PL and the road light light distribution pattern PH (or other light distribution pattern ) can be formed. In the case where the plurality of light-emitting diodes 32 is provided as described above, the temperature of the projection lens 20 tends to increase. Therefore, the use of the structure according to the embodiment is particularly relevant.
In the embodiment, since the antireflection films 26 are formed on the front surface 22a and the rear surface 22b of the first lens 22 in the projection lens 20, and the front surface 24a and the rear surface 24b of the second lens 24 in the projection lens 20, it is possible to eliminate a degradation of the light distribution pattern, and improve the fire performance.
In the embodiment described above, the antireflection films 26 are formed on the surfaces of the first and second lenses 22, 24 which constitute the projection lens 20. However, the antireflection films 26 may be formed on parts surfaces. Similarly, instead of antireflection films 26, the crosslinked structures (moth-eye) or the like can be formed.
In the embodiment described above, the API wind guide passage is disposed above the optical axis Ax. However, the API wind guide passage may be disposed in a different position.
In the embodiment described above, the first lens 22 is made of PMMA resin and the second lens 24 is made of PC resin or PS resin. However, each of the first lens 22 and the second lens 24 may be made of resin other than the resin described above (for example silicone resin).
In the embodiment described above, the projection lens 20 includes the first and second lenses 22, 24. However, the projection lens 20 may be a single lens or may comprise three or more lenses. In the case where the projection lens 20 is a single lens, a diffraction structure may be provided in its front surface and / or its rear surface.
In the embodiment described above, the vehicle light 10 is a lighthouse. However, the vehicle light 10 may be configured as another light (for example a fog lamp).
[0070] A modified example of the embodiment described above is then explained.
FIG. 4 and FIG. 5 are views similar to FIG. 1 and FIG. 2, respectively, showing a vehicle light 110 according to the modified example.
As shown in the drawings, the basic structure of the vehicle light 110 is similar to the basic structure in the embodiment described above. The vehicle light 110 is different from the vehicle light 10 in the embodiment described above in that a motor fan 180 serving as a second wind generator, and a wind guiding passage AP2 serving as a second passage of the vehicle. wind guidance are provided. Thus, the structures of a radiator 140 and a conduit 170 are partially different from the radiator 40 and the conduit 70 in the embodiment described above.
In other words, in the modified example, the motor fan 180 is attached to a lower surface of a lower wall portion 140C of the radiator 140. Similarly, in the lower wall portion 140C of the radiator 140, a bottom opening 140b is formed to extend through the lower wall portion 140C in the upper-lower direction.
The motor fan 180 has a structure similar to that of the cooling fan 60. The motor fan 180 sends the wind generated by a fan body 182 rotating in a horizontal plane to a space 140c from a lower side from the 140c space. The space 140c is surrounded by a body 140A, the bottom wall portion 140C, and a pair of right and left side wall portions, and a front wall portion 140E of the radiator 140.
The opening 140b formed in the lower wall portion 140C is formed such that the opening 140b extends upwardly and is inclined toward the front side in an upward direction, and a front width back of the aperture 140b becomes progressively narrower in the upward direction. This allows wind from the motor blower 180 to be efficiently delivered to a rear surface 24b of a second lens 24 within the space 140c.
In this example also modified, the wind generated by the cooling fan 60 is guided from a space 140a between a plurality of heat dissipating fins 140B of the radiator. 140- towards a vent hole 170a of the duct 170.
The conduit 170 in the modified example has substantially the same structure as that of the conduit 70 of the embodiment described above. However, the conduit 170 in the modified example is different from the conduit 70 in the embodiment described above in that a cover member 172 is formed integrally with the conduit 170. The cover member 172 extends to both right and left sides of the conduit 17 0 so as to cover upper end surfaces of the body 140A and the pair of side wall portions 140D of the radiator 140. Since the conduit 170 and cover 172 are attached to the upper end surface of the radiator 140, the gap 140c is separated from an outer space, and thus, the light source unit 30 is dust protected and so on.
In this duct 170, an opening 170b is formed in a portion near the rear side of an upper end portion of the tubular support 50 to allow the space 140c to communicate with the vent hole 170a. Thus, the wind sent into the space 140c from the motor fan 180 is sent into the vent hole 170a of the conduit 170 through the opening 170b.
As described above, the second wind guiding passage AP2 is formed by the lower opening 140b formed in the lower wall portion 140C, the space 140c, the opening 170b of the duct 170, a front half of the vent hole 170a of the conduit 170, and the upper opening 50a of the tubular support 50, and the second wind guiding passage AP2 joins an API wind guide passage in the vent hole 170a of the conduit 170.
In the passage of, wind guide AP2, much of the wind sent into Σ '· space 140c from the motor fan 180 through the lower opening 140b of the lower wall portion 140C moves toward the high along the rear surface 24b of the second lens 24, and is then sent into the vent hole 170a through the opening 170b of the conduit 170. However, part of the remainder of the wind is moving upwards in the vicinity on the front side of the light source unit 30, and is then sent into the vent hole 170a through the opening 170b of the duct 170.
Effects of this modified example are then explained.
In the vehicle light 110 according to this example
also modified, since the wind generated by the cooling fan 60 (first wind generator) is guided by the API wind guiding passage (first wind guiding passage) to a space 20a between a first lens 22 and the second lens 24 in a projection lens 20, it is possible to effectively cool the projection lens 20.
In addition, according to this modified example, since the wind generated by the motor fan 180 (second wind generator) is guided by the wind guide passage AP2 (second wind guiding passage) to the 20a space between the first lens 22 and the second lens 24 in, the projection lens 20, it is possible to cool more effectively the projection lens 20.
Furthermore, in the wind guiding passage AP2, a large part of the wind which is sent from the motor fan 180 to the space 140c through the lower opening 140b of the lower wall portion 140C moves upwards along the rear surface 24b of the second lens 24. Therefore, it is possible to cool the projection lens 20 even more effectively.
In the wind guiding passage AP2, a part of the wind sent from the motor fan 180 to the space 140c through the lower opening 140b of the lower wall portion 140C moves upwardly at next to the front side of the light source unit 30. Therefore, it is possible to suppress an increase in the temperature of the elements around the wind guiding passage AP2 (for example, the light source unit 30 and and so on).
In particular, in this modified example, in order to protect the light source unit 30 against dust and so on, the conduit 170 and the cover member 172 are attached to the upper end surface of the Since the space 140c inside the radiator 140 is separated from an external space and the temperature tends to increase, the structure comprising the motor fan 180 and the wind guiding passage AP2 is extremely relevant.
In the modified example described above, light emitted by the plurality of light-emitting diodes 32 which serve as a light source enters directly into the projection lens 20. However, a two-dimensional imaging device ( for example, a light-transmitting liquid crystal shutter) may be disposed between the light source and the projection lens 20, and light emitted by the light source may enter the projection lens 20 through the lens. two-dimensional image forming device. When this structure is used, it is possible to cool the two-dimensional image forming device with the use of the wind guided by the wind guide passage AP2.
The numerical values described as features in the embodiment described above and its modified example are only examples, and they can be set to different values as needed.
In addition, the invention is not limited to the structures described in the embodiment described above and its modified example. It is possible to use structures obtained by making various modifications to the structures described in the embodiment described above and its modified example.

权利要求:
Claims (6)
[1" id="c-fr-0001]
A vehicle light characterized in that it comprises: a projection lens (20) made of resin; a light source (30) disposed behind the projection lens (20), the vehicle light being configured such that light from the light source (30) is emitted forwardly through the lens projection (20); a wind generator (60; 180) configured to generate wind; and a wind guiding passage (API; AP2) configured to guide wind generated by the wind generator (60; 180) to a position where the wind strikes a surface of the projection lens (20).
[2" id="c-fr-0002]
A vehicle light according to claim 1, wherein: the projection lens (20) comprises a first lens (22) and a second lens (24) disposed at a given interval in a front-to-back direction; and the wind guiding passage (API) is configured to guide the wind in a space (20a) between the first lens (22) and the second lens (24).
[3" id="c-fr-0003]
The vehicle light according to claim 1 or 2, wherein: the light source (30) comprises a light emitting diode supported by a heat sink (40), and the wind generator (60) is a cooling fan configured to dissipate heat of the radiator (40).
[4" id="c-fr-0004]
A vehicle light according to any one of claims 1 to 3, wherein the light source (30) comprises a plurality of light emitting diodes arranged to form a grid.
[5" id="c-fr-0005]
The vehicle light according to any one of claims 1 to 4, wherein the surface of the projection lens (20) is subjected to antireflection treatment.
[6" id="c-fr-0006]
The vehicle light according to any one of claims 2 to 4, wherein: the wind generator comprises a first wind generator (60) and a second wind generator (180); the wind guiding passage includes a first wind guiding passage (API) and a second wind guiding passage (AP2); the first wind guiding passage (API) is configured to guide the wind generated by the first wind generator (60) into the space (20a) between the first lens (22) and the second lens (24); and the second wind guiding passage (AP2) is configured to guide the wind generated by the second wind generator (180) into the space (20a) between the first lens (22) and the second lens (24).

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同族专利:

公开号 | 公开日

US10228118B2|2019-03-12|

US20170328535A1|2017-11-16|

JP2017204400A|2017-11-16|

DE102017207778A1|2017-11-16|

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FR3051243B1|2019-10-25|

CN107366867A|2017-11-21|

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法律状态:
2018-04-12| PLFP| Fee payment|Year of fee payment: 2 |

2019-04-10| PLFP| Fee payment|Year of fee payment: 3 |

2021-02-12| ST| Notification of lapse|Effective date: 20210105 |

优先权:

申请号 | 申请日 | 专利标题

JP2016096024A|JP6741467B2|2016-05-12|2016-05-12|Vehicle lighting|

JP2016096024|2016-05-12|

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