CN110397893A - Lamps apparatus for vehicle - Google Patents
Lamps apparatus for vehicle Download PDFInfo
- Publication number
- CN110397893A CN110397893A CN201910334487.XA CN201910334487A CN110397893A CN 110397893 A CN110397893 A CN 110397893A CN 201910334487 A CN201910334487 A CN 201910334487A CN 110397893 A CN110397893 A CN 110397893A
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- China
- Prior art keywords
- light
- led
- incidence
- plane
- lens
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/241—Light guides characterised by the shape of the light guide of complex shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/249—Light guides with two or more light sources being coupled into the light guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
Abstract
The present invention provides lamps apparatus for vehicle, can project light to direction appropriate.Lamps apparatus for vehicle (1) includes the LED socket (10) as light source, with multiple LED (13)；And the lens (20L) as light guide member, it has the plane of incidence (20i) of the light projected from LED socket (10), the plane of incidence (20i) includes the 1st incident area (21) of a part as multiple paraboloids of revolution, the rotary shaft (RA) of each paraboloid of revolution is Chong Die with exit facet (13o) of light of each LED (13) that the optical axis direction plane of incidence (20i) along the light projected from each LED (13) projects, and the optical axis direction along the light from LED (13) injected to the plane of incidence (20i) extends.
Description
Technical field
The present invention relates to the lamps apparatus for vehicle that can project light to direction appropriate.
Background technique
As lamps apparatus for vehicle such as identification light, Rear Fog Lamp, head lamps, it is known that have the lamp for the LED socket for assembling multiple LED
Tool.
In following patent documents 1, lamps apparatus for vehicle as described above is recorded.The lamps apparatus for vehicle has to be inserted with LED
The opposite lens of seat.The lens have the plane of incidence, that is, convex surface part of the light centered on the optical axis of the light projected from LED socket.From
The light that LED socket projects is reflected when injecting from the convex surface part and is transmitted in lens.The convex surface part makes from multiple
The emergent light of centrally located LED in LED is injected as the substantially parallel light with above-mentioned optical axis.
Patent document 1: Japanese Unexamined Patent Publication 2018-26216 bulletin
The lens recorded in above patent document as noted above, have and with the optical axis of the light projected from LED socket are
The plane of incidence of the light of the convex surface shape at center.But the optical axis of the light projected from LED socket, it is the whole projected from multiple LED
The optical axis of light.Therefore, the LED that is configured at position not Chong Die with the optical axis, i.e. above-mentioned centrally located in multiple LED
LED around set each LED light exit facet, from the center deviation of the plane of incidence of the convex of lens.Therefore, from such as
The light that the upper LED is projected is easy the light in the direction deviateed from desired direction after injecting from convex surface part into lens
It is transmitted on road.In light as described above in the case where the optical path deviateed from desired optical path is transmitted, exit facet is set
Meter becomes complicated, and a part of the light projected from exit facet is possible to be transmitted to the direction deviateed from direction appropriate.
Summary of the invention
Therefore, the object of the present invention is to provide the lamps apparatus for vehicle that can project light to direction appropriate.
In order to achieve the above object, lamps apparatus for vehicle of the invention is characterized in that, comprising: light source, with multiple
LED；And light guide member, there is the plane of incidence of the light projected from the light source, the plane of incidence includes multiple rotary parabolics
The a part in face, the rotary shaft of each paraboloid of revolution enter with described in the optical axis direction along the light projected from each LED
The exit facet overlapping for penetrating the light of each LED of face projection, along the light for the light from the LED injected to the plane of incidence
Axis direction extends.
According to lamps apparatus for vehicle as described above, at least part of the light projected from each LED, from rotary parabolic towards
Light guide member is injected.The rotary shaft of the paraboloid of revolution, the exit facet weight with the light of the LED projected as noted above to the plane of incidence
It is folded, along the optical axis direction for the light from LED injected to the plane of incidence.Therefore, from each LED project and from each rotary parabolic
Transmission direction in the light guide member for the light that face is injected, with being transmitted in lens of being recorded in above patent document 1
Light is compared, close to will be injected to light guide member before the parallel direction of the optical axis of light.If light is in direction as described above
It is transmitted, then compared with the case where transmission direction of light keeps off the optical axis of the light before light guide member injection, in exit facet
The control of light become easy, the light can be made easily to project from light guide member to desired direction.Therefore, vehicle of the invention
Light can be projected to direction appropriate with lamps and lanterns.
Additionally, it is preferred that the plane of incidence also includes the joint face for being attached the paraboloid of revolution described at least two.
In multiple LED in the case where being closely located to, the rotary shaft of each paraboloid of revolution in the plane of incidence is close.At this
In the case of, a part of the light projected from defined LED is easy to penetrate from by the paraboloid of rotary shaft of the optical axis of adjacent LED
Enter.As described above from being the light of the paraboloid of rotary shaft injection in light guide member using the optical axis of adjacent LED, it is easy to accident
Direction transmitted.Therefore, it is provided with the joint face for being attached at least two paraboloid of revolution as noted above, thus
It can make in the case where being not provided with the joint face from defined LED injection and from the optical axis rotary shaft of adjacent LED
Paraboloid inject light at least part from the joint face inject.Therefore, appropriate adjustment is carried out to joint face, thus, it is possible to
By the close direction parallel with the optical axis of light projected from LED of the optical path for the light injected from joint face.
In this case, the joint face can be convex, and the joint face is also possible to concavity.
Joint face is convex, and thus, it is possible to reduce the angle of divergence for the light injected to joint face, in exit facet and joint face
Opposite position can become bright.On the other hand, joint face is concavity, and thus, it is possible to increase the hair for the light injected to joint face
Angle is dissipated, the uneven of brightness at the position opposite with joint face in exit facet is able to suppress.
Additionally, it is preferred that the joint face is non-rotational symmetric shape, the light respectively projected from the multiple LED, from described
The position of rotational symmetry on the basis of the rotary shaft of joint face is injected to the light guide member.
In this case, the entirety of the light transmitted in light guide member can be set as the shape of rotational symmetry.In addition,
From LED project light be with the light of radial extension, therefore the entirety of the light transmitted in light guide member be set as rotation pair
The shape of title, thus, it is possible to inhibit the uneven of brightness, lamps apparatus for vehicle can efficiently shine.
Additionally, it is preferred that the plane of incidence does not include the respective vertex of the multiple paraboloid of revolution, the joint face is located at
It is projected from the LED and on the optical axis of each light of plane of incidence injection.
Light on the optical axis of the LED intensity compared with the light around optical axis is high.Therefore, the plane of incidence does not include multiple paraboloids of revolution
Respective vertex, thus it enables that the high light of intensity on optical axis disperses in light guide member and transmitted.Therefore, from light guide section
In the light that part projects, it is able to suppress the point that light corresponding with the optical axis of LED consumingly shines and shines.
Alternatively, being also possible to the plane of incidence includes the respective vertex of the multiple paraboloid of revolution, the rotary parabolic
Face is located on the optical axis.
In this case, the high light of intensity on the optical axis of LED, can in light guide member with entering to light guide member
It is transmitted in the parallel direction of optical axis for penetrating the light of face injection.That is, can be passed in the easily controlled direction of the high light of intensity
It is defeated.Therefore, the high light of intensity can be projected to desired direction.
In addition, the light guide member can be the lens for having exit facet in the position opposite with the plane of incidence.
Alternatively, the light guide member can be the position other than the position opposite with the plane of incidence with exit facet
Light guide.
The effect of invention
As previously discussed, in accordance with the invention it is possible to provide the lamps apparatus for vehicle that can project light to direction appropriate.
Detailed description of the invention
Fig. 1 is the figure for indicating the example of the vehicle equipped with the lamps apparatus for vehicle in the 1st embodiment of the invention.
Fig. 2 is the exploded view of a part of the lamps apparatus for vehicle in the 1st embodiment of the invention shown in FIG. 1.
Fig. 3 is the cross-sectional view of the lamps apparatus for vehicle at the III-III line of Fig. 1.
Fig. 4 is the LED socket of Fig. 3 and the enlarged drawing of lens.
Fig. 5 is the figure of the lens of Fig. 3 from incident surface side.
Fig. 6 is the figure of the lens of Fig. 3 from outgoing surface side.
Fig. 7 is the figure that the appearance of the lamps apparatus for vehicle in the 2nd embodiment of the invention is indicated in the same manner as Fig. 3.
Fig. 8 is the enlarged drawing of the LED socket of Fig. 7, lens and light guide.
Fig. 9 is the figure that the appearance of the lamps apparatus for vehicle in the 3rd embodiment of the invention is indicated in the same manner as Fig. 3.
Figure 10 is the LED socket of Fig. 9 and the enlarged drawing of light guide.
Figure 11 is the enlarged drawing for indicating the 1st variation of the plane of incidence.
Figure 12 is the enlarged drawing for indicating the 2nd variation of the plane of incidence.
Figure 13 is the enlarged drawing for indicating the 3rd variation of the plane of incidence.
The explanation of label
1 lamps apparatus for vehicle
2 outer covers
3 lamp bodies
10LED socket
11 socket main body portions
12 radiators
13···LED
13o exit facet
20 lens units
20L lens
The 20i plane of incidence
20o exit facet
21 the 1st incident areas (paraboloid of revolution)
The vertex 21t
22 the 2nd incident areas (joint face)
23 the 3rd incident areas
24 internal reflection regions
25 the 1st exit areas
26 the 2nd exit areas
27 the 3rd exit areas
30 light guides
The 30i plane of incidence
30o exit facet
40 light guides
RA rotary shaft
VE vehicle
Specific embodiment
In the following, the mode for being used to implement headlight for automobile according to the present invention is illustrated together with attached drawing.With
Lower embodiment illustrated is the embodiment for becoming easy understanding of the invention, is not intended to explain this with limiting
The embodiment of invention.The present invention does not depart from its purport, can change, improve from the following embodiments and the accompanying drawings.
(the 1st embodiment)
Fig. 1 is the figure for indicating the example of the vehicle equipped with the lamps apparatus for vehicle in present embodiment.Fig. 1 is from rear side
The figure of vehicle VE is observed, as shown in Figure 1, the vehicle VE of present embodiment has lamps apparatus for vehicle 1.The vehicle of present embodiment is used
Lamps and lanterns 1 include identification light and constitute, and left and right directions of the lamps apparatus for vehicle 1 at the back side of vehicle VE is respectively provided with 1.Respectively
A lamps apparatus for vehicle 1 exposes to the external of vehicle VE, projects light from identification light towards the external of vehicle VE.
Fig. 2 is the exploded view of a part of the lamps apparatus for vehicle 1 in present embodiment shown in FIG. 1, and Fig. 3 is Fig. 1
The cross-sectional view of lamps apparatus for vehicle 1 at III-III line.As shown in Figure 2 and Figure 3, the lamps apparatus for vehicle 1 of present embodiment is as master
The structure wanted and there is LED socket 10, lens unit 20, outer cover 2 and lamp body 3.
Outer cover 2 and lamp body 3 are for example formed by resin, and outer cover 2 is installed on lamp body 3 by welding, screw fastening etc..This
Sample is formed with defined space by outer cover 2 and lamp body 3.In addition, outer cover 2 is formed by the component of translucency.Such as above-mentioned institute
Show, the lamps apparatus for vehicle 1 of present embodiment includes identification light and constitutes.Therefore, the region by back-up lamp covering of outer cover 2 is formed
It is colorless and transparent.In addition, the area coloring for covering Brake lamp, taillight of outer cover 2 is the red of translucency.Alternatively, by outer
Cover 2 covering Brake lamp, taillight with red lighting in the case where, outer cover 2 by Brake lamp, taillight cover region be also possible to
It is colorless and transparent.In addition, the area coloring by blinker covering of outer cover 2 is the orange of translucency.In this case, by
In the case that the blinker that outer cover 2 covers is with orange lighting, the region by blinker covering of outer cover 2 is also possible to
It is colorless and transparent.Alternatively, outer cover 2 can also cover Rear Fog Lamp.In this case, the area coloring for covering Rear Fog Lamp of outer cover 2
For the red of translucency.Alternatively, outer cover 2 covers Rear Fog Lamp in the case where the Rear Fog Lamp covered by outer cover 2 is with red lighting
The region of lid is also possible to colorless and transparent.
LED socket 10 has socket main body portion 11, radiator 12 and multiple LED 13 as main structure.Therefore,
LED socket 10 is it will be appreciated that be the light source with multiple LED 13.Radiator 12 is that multiple plates are spaced at intervals and weigh
Folded, if the space between plate filled, radiator 12 becomes substantially cylindric shape as a whole.Socket main body portion
11 are formed as being fixed on radiator 12 than the generally cylindrical shape of 12 path of radiator.In addition, in socket main body portion 11
Peripheral part is provided with multiple chimeric protrusion 11p, matches in socket main body portion 11 and the LED mounting portion 14 of heat sink side opposite side
It is equipped with multiple LED 13.Socket main body portion 11 is inserted into the opening 3H formed in lamp body 3 together with chimeric protrusion 11p.Institute as above
It states in the state that socket main body portion 11 is inserted into opening 3H, chimeric protrusion 11p is locked to lamp body 3, and thus LED socket 10 is fixed
In lamp body 3.As described above in the state that LED socket 10 is fixed on lamp body 3, multiple LED 13 are configured at by above-mentioned outer cover 2
The space formed with lamp body 3.
Lens unit 20 has the lens 20L and bridge portion 20B of translucency as main structure.Lens 20L for example by
Polycarbonate that acrylic acid that refractive index is 1.49, refractive index are 1.586 etc. is constituted.In the lens unit 20 of present embodiment
In, a pair of of bridge portion 20B that bridge portion 20B is created as rectangular-shaped shape is fixed on lens 20L's across lens 20L.In addition,
In the present specification, in order to avoid attached drawing becomes cumbersome, the hacures of lens 20L are omitted.For example, bridge portion 20B and lens 20L
It can respectively be made of the resin of translucency, be fixed to each other by integrated molding.In addition, as shown in figure 3, in present embodiment
In, lens unit 20 is configured at the space formed by above-mentioned outer cover 2 and lamp body 3, and a pair of of bridge portion 20B is each secured to lamp body 3.
In the state that in bridge portion, 20B is fixed on lamp body 3, lens 20L and each LED 13 are opposite.
Fig. 4 is the LED socket 10 of Fig. 3 and the enlarged drawing of lens 20L.As noted above in socket main body portion 11 configured with more
A LED 13 as light source, lens 20L and each LED 13 are opposite, therefore inject from the light that LED 13 is projected to lens 20L.
Therefore, the face of 13 side LED in lens 20L is plane of incidence 20i, and in lens 20L is outgoing with the face of 13 side opposite side of LED
Face 20o, light are transmitted to exit facet 20o from plane of incidence 20i.Therefore, lens 20L is it will be appreciated that be light guide member.Each LED
13 connect with wiring (not shown), supply an electric current to each LED 13 via the wiring.
Fig. 5 is the figure of the lens 20L from the side plane of incidence 20i.In addition, in Fig. 5, along the light projected from each LED 13
Optical axis and project to the exit facet 13o of each LED 13 of the lens 20L and LED 13 and be represented by the dotted line.In present embodiment
In, 4 LED 13 are configured at around central axis CL and the position of rotational symmetry.That is, each LED 13 is configured to, the light of LED 13
Exit facet 13o is located on each vertex of the square centered on central axis CL.Therefore, it is respectively projected from multiple LED 13
Light is injected from plane of incidence 20i to lens 20L at the position of rotational symmetry on the basis of by central axis CL.
As shown in Figure 4, Figure 5, plane of incidence 20i includes the 2nd incident area 22, the 3rd incident area 23 and multiple 1st incidence zones
Domain 21.
Each 1st incident area 21 is a part of the paraboloid of revolution on the basis of rotary shaft RA, in present embodiment
In, each 1st incident area 21 includes the vertex 21t of the paraboloid of revolution.Vertex 21t and projection as noted above to lens
Each exit facet 13o of 20L is overlapped.Therefore, the rotary shaft RA of the paraboloid of revolution of each 1st incident area 21 is formed also and such as
Each exit facet 13o of projection shown in above-mentioned to lens 20L are overlapped.In addition, what each edge rotary shaft RA was injected to plane of incidence 20i
The optical axis direction of light from each LED 13 and extend.In the present embodiment, the paraboloid of revolution of the 1st incident area 21 is set
For following shapes, that is, in the case where lens 20L as noted above is for example made of acrylic acid or polycarbonate, from each LED
13 project and become parallel with the optical axis after injection to light of the slave optical axis of the lens 20L light injected until 30 degree.
In addition, as noted above, multiple LED 13 are configured to rotational symmetry shape around central axis CL, therefore each 1st is incident
Region 21 is formed as centered on central axis CL and the shape of mutually rotational symmetry, in a manner of surrounding the 2nd incident area 22
It is connected with each other.As described above in the state that the 1st incident area 21 is connected, multiple the outer of 1st incident area 21 are formed as round
Shape.
2nd incident area 22 is surrounded by each 1st incident area 21 as noted above, with multiple 1st incident areas 21
Inner circumferential connects.Therefore, the 2nd incident area 22 is it will be appreciated that be the joint face for connecting each 1st incident area 21.In this reality
It applies in mode, the 2nd incident area 22 is set as convex, is using central axis CL as the shape of the surface of revolution shape of rotary shaft, for example, setting
For the paraboloid of revolution.In addition, as noted above, each 1st incident area 21 is formed as mutually revolving centered on central axis CL
Turn symmetrical shape, therefore the 2nd incident area 22 connecting with these the 1st incident areas 21 is also on the basis of central axis CL
The shape of rotational symmetry.
3rd incident area 23 be the inner surface of tubular towards 10 side of LED socket the cylindric shape that extends, and it is multiple
The periphery of 1st incident area 21 connects.Therefore, multiple 1st incident areas 21 are surrounded by the 3rd incident area 23.
3rd incident area 23 is internally reflected the encirclement of region 24.Internal reflection regions 24 are the shapes of the side of the frustum of a cone
Shape is extended towards the opposite side with 10 side of LED socket.The internal reflection regions 24 are connect with bridge portion 20B.
Fig. 6 is the figure of the lens 20L from the side exit facet 20o.As shown in figs. 4 and 6, exit facet 20o includes: the 1st outgoing
Region 25, the 2nd exit area 26 and the 3rd exit area 27.
1st exit area 25 has the circular shape centered on central axis CL, is set as using central axis CL as rotary shaft
Surface of revolution shape convex shape.In addition, the 1st exit area 25 enters with a part of each 1st incident area 21 and the 2nd
The overlapping of region 22 is penetrated, it is also be overlapped with the vertex 21t for the paraboloid of revolution for forming the 1st incident area 21.
2nd exit area 26 is connect via side 25w with the 1st exit area 25, and the 1st exit area 25 is surrounded.2nd
Exit area 26 includes: the 1st block 26a connect with side 25w and surrounds the 1st exit area 25, the lens of multiple convexs
With circle-shaped extension；And the 2nd block, the 1st block 26a is surrounded, by the multiple cylindrical lenses extended along defined direction
It constitutes.The periphery of 2nd block 26b is set as being the circle centered on central axis CL.
3rd exit area 27 is connect via side 26w with the periphery of the 2nd exit area 26, and the 2nd exit area 26 is wrapped
It encloses.3rd exit area 27 connect with the fish-eye lens of multiple convexs and is formed as cyclic annular.3rd exit area 27 and bridge portion 20B connects
It connects.
Next, being illustrated to the movement of the lamps apparatus for vehicle 1 of present embodiment.
If the operation of the switch by the movement or car of vehicle VE, supplies an electric current to the respective LED of LED socket 10
13, then each LED 13 goes out light emission.The light projected from each LED13, to have as shown in single dotted broken line in Fig. 4
The defined angle of divergence and project.Therefore, the light projected from each LED 13, enters from the 1st incident area the 21, the 2nd of plane of incidence 20i
Penetrate region 22, the 3rd incident area 23 is injected into lens 20L.From each LED 13 project and will to plane of incidence 20i inject before
Each light optical axis, along rotary shaft RA.In addition, the light that the slave LED 13 in the following description is projected is in figure by single-point
Scribing line indicates.
1st incident area 21 is a part of the paraboloid of revolution on the basis of rotary shaft RA as noted above, and edge comes from
The optical axis direction of the light of LED 13 and extend.In addition, in the present embodiment, being injected as noted above to the 1st incident area 21
Light, be formed as the light from optical axis until 30 degree becomes parallel with optical axis after injection, therefore from the 1st incident area 21 to saturating
Mirror 20L inject light, reflected in the 1st incident area 21, in lens 20L with to lens 20L inject before light optical axis
Substantially parallel direction is transmitted, towards exit facet 20o.Even in addition, being more than 30 degree from optical axis and to the 1st incident area
21 light injected, the light can also approach the direction parallel with optical axis in lens 20L.It is passed in lens 20L as described above
Defeated light is projected from the 1st exit area 25 and the 2nd exit area 26.The light projected from the 1st exit area 25, as noted above
1st exit area 25 is convex, therefore is converged, and is transmitted dissipating after focal point.In addition, from the 1st of the 2nd exit area
The light that block 26a is projected, a part convergence, is then transmitted while dissipating, the light projected from the 2nd block 26b, for each
Cylindrical lens is all a part of convergence, is then transmitted while dissipating.
From LED 13 project and from the 2nd incident area 22 inject light, in lens 20L with to lens 20L inject before
The different direction of optical axis of light transmitted.Specifically, transmitting as described below.2nd incident area 22 as noted above
For the shape of convex, thus from it is in the light that LED 13 is projected, compared with the central axis CL in the 2nd incident area 22 from by the light
The light injected in the 13 lateral lenses 20L of LED of injection, with the optical axis of the light before being injected with the light before injection and to lens 20L
Formed angle is compared, and the light mode bigger with angle formed by the optical axis is transmitted in lens 20L after injection.Another party
Face, from LED 13 project light in, with the central axis CL in the 2nd incident area 22 compared with from by the light emission out 13 side LED
Opposite lateral lenses 20L in the light injected, the direction of the optical axis of the light before injecting is reflected and to approach, in lens
It is transmitted in 20L.Moreover, these light are projected from the 1st exit area 25 to the direction of diverging.
It projects from LED 13 from the light that the 3rd incident area 23 is injected, internally reflected region 24 carries out internal reflection, In
Substantially parallel direction is transmitted with the optical axis to the light before lens 20L injection, is mainly projected from the 3rd exit area 27.From
The light that 3rd exit area 27 is projected dissipated after once converging corresponding to the light projected from each fish-eye lens.
As noted above from LED 13 project, from plane of incidence 20i to lens 20L inject and from exit facet 20o project light,
It is projected via outer cover 2 to outside the vehicle of vehicle VE.
As described above, the lamps apparatus for vehicle 1 of present embodiment includes LED socket 10, be have it is multiple
The light source of LED；And lens 20L, it is the light guide member of the plane of incidence 20i with the light projected from LED socket 10.The incidence
Face 20i includes a part i.e. the 1st incident area 21 of multiple paraboloids of revolution, the rotary shaft RA of each paraboloid of revolution and along from
The optical axis for the light that each LED 13 is projected and exit facet 13o overlapping to the light of the plane of incidence 20i each LED 13 projected, along to
The optical axis direction for the light from LED 13 that plane of incidence 20i is injected extends.
According to lamps apparatus for vehicle 1 as described above, at least part of the light projected from each LED 13, from as rotation
Paraboloidal 1st incident area 21 is injected to the lens 20L as light guide member.The rotary shaft RA of the paraboloid of revolution, and such as
To the exit facet 13o overlapping of the plane of incidence 20i LED 13 projected shown in above-mentioned, LED is come from along what is injected to plane of incidence 20i
The optical axis direction of 13 light.Therefore, the lens 20L for the light injected from each LED 13 injection from each 1st incident area 21
Interior transmission direction, close to will be injected to lens 20L before the parallel direction of the optical axis of light.In the present embodiment, such as
Shown in above-mentioned, the transmission direction of the light in the lens 20L for the light injected from each 1st incident area 21, become with will be to saturating
The optical axis of light before mirror 20L injection is substantially parallel.If light is transmitted in direction as described above, and in lens 20L
Compared with the case where not parallel direction light of the optical axis of the light before injecting to lens 20L is transmitted, it can easily make this
Light is projected from lens 20L to desired direction.Therefore, the lamps apparatus for vehicle 1 of present embodiment can be by light to direction appropriate
It projects.
In addition, the lamps apparatus for vehicle 1 of present embodiment, further comprises as at least two paraboloid of revolution i.e. the 1st incidence zone
2nd incident area 22 of the joint face that domain 21 is attached.Therefore, the 2nd incident area 22 is not included with lens 20L and by the 1st
The case where incident area 21 is connected to each other directly is compared, be able to suppress from defined LED 13 project light a part from with
The optical axis of the 1st adjacent LED 13 opposite incident area 21 is the case where paraboloid of rotary shaft is injected.Therefore, enter to the 2nd
It penetrates region 22 and carries out appropriate adjustment, penetrated thus it enables that the optical path for the light injected from the 2nd incident area 22 is close with from LED 13
The parallel direction of the optical axis of light out.
It also, is in the present embodiment, convex as the 2nd incident area 22 of joint face.Therefore, can reduce to
The angle of divergence for the light that 2 incident areas 22 are injected, the position opposite with the 2nd incident area 22 in exit facet 20o can become bright
It is bright.
In addition, in the present embodiment, the 2nd incident area 22 as joint face is non-rotational symmetric shape, from multiple LED
13 light respectively projected, the position of the rotational symmetry on the basis of rotary shaft, that is, central axis CL of 2 incident area 22 of Cong Yi is to saturating
Mirror 20L is injected.Therefore, in the lamps apparatus for vehicle of present embodiment 1, the entirety of the light transmitted in lens 20L can
Shape as rotational symmetry.In addition, from LED 13 project light be with the light of radial extension, therefore in lens 20L into
The entirety of the light of row transmission becomes the shape of rotational symmetry, and thus, it is possible to inhibit the uneven of the brightness in exit facet 20o, vehicle
It can efficiently be shone with lamps and lanterns 1.
In addition, in the present embodiment, plane of incidence 20i include the paraboloid of revolution in multiple 1st incident areas 21 respectively
Vertex 21t, as the paraboloid of revolution the 1st incident area 21 be located at from each optical axis of each LED 13 light projected.
Therefore, the light on the high optical axis of the intensity of LED 13 can be penetrated with projecting from LED 13 to lens 20L in lens 20L
It is transmitted in the direction that the optical axis of light before entering is parallel.That is, the high light of intensity can be transmitted in easily controlled direction.Cause
This, can project the high light of intensity to desired direction.
(the 2nd embodiment)
Next, being illustrated to the 2nd embodiment of the invention.In addition, being closed when being illustrated to present embodiment
The identical or same structural element of 1 embodiment of Yu Yu, marks same reference numeral, in addition to being important to the case where being illustrated
In addition, the repetitive description thereof will be omitted.
Fig. 7 is the figure that the appearance of lamps apparatus for vehicle 1 of present embodiment is indicated in the same manner as Fig. 3.As shown in fig. 7, this reality
The lamps apparatus for vehicle 1 of the lamps apparatus for vehicle 1 and the 1st embodiment of applying mode is main the difference lies in that having light guide 30.Light guide
30 are made of the material of translucency, have plane of incidence 30i and exit facet 30o.Plane of incidence 30i is opposite with lens 20L, exit facet
30o and outer cover 2 extend relatively.
Fig. 8 is the enlarged drawing of the LED socket of Fig. 7, lens and light guide.As shown in figure 8, the lens 20L of present embodiment with
The exit facet of the lens 20L of 1st embodiment 20o's the difference lies in that exit facet 20o be it is planar.In addition, exit facet 20o
It is vertical with the optical axis of the light from LED 13 injected to lens 20L.Therefore, in lens 20L, before being injected to lens 20L
Light optical axis the light that is transmitted of direction, transmitted in the direction vertical with exit facet 20o and penetrated from exit facet 20o
Out.Therefore, which hardly reflects in exit facet 20o.
In addition, the plane of incidence 30i of light guide 30 is the planar face in the same size with the exit facet 20o of lens 20L,
It is opposite substantially in parallel with exit facet 20o.In addition, the length direction of light guide 30 exists near the plane of incidence 30i of light guide 30
The direction vertical with plane of incidence 30i extends.Therefore, in the side plane of incidence 30i of light guide 30, the length direction of light guide 30 is along from each
LED 13 is projected and the direction of the optical axis to each light before the injection of light guide 30 extends.
In addition, the opposite side with 2 side of outer cover on the basis of the exit facet 30o of light guide 30, is set as reflecting surface 30r, does not have
It is especially illustrated, but is formed with multiple reflective steps.But as long as the light transmitted in light guide 30 can be from exit facet
30o is projected, and light can not also be reflected in reflecting surface 30r.Therefore, multiple reflective steps are not required.In order in reflecting surface 30r
The light for reflecting light and being transmitted in light guide 30 is projected from exit facet 30o, can also be for example in the exit facet of light guide 30
Near 30o, make to disperse the filler of anaclasis, reflection.
In the lamps apparatus for vehicle 1 of present embodiment, the light projected from each LED 13, such as the institute in the 1st embodiment
As explanation, injected to lens 20L.Therefore, from the 1st incident area 21 inject light and from the 3rd incident area 23 inject and
The light that internally reflected region 24 is reflected, the side of the optical axis of each light before projecting from each LED 13, being injected to lens 20L
To being transmitted in lens 20L.These light are transmitted in the direction vertical with exit facet 20o, exit facet 20o almost
It does not reflect, is projected from exit facet 20o.In addition, from the light that the 2nd incident area 22 is injected, in lens 20L with to lens 20L
It is transmitted in the direction that the optical axis of light before injection is different.Therefore, when the exit facet 20o light emission goes out, the light reflected and
It projects.
The light projected from lens 20L, is injected from the plane of incidence 30i opposite with lens 20L to light guide 30 as noted above.Such as
The exit facet 20o of the plane of incidence 30i and lens 20L of light guide 30 shown in above-mentioned are opposite substantially in parallel.Therefore, from the 1st incidence zone
Domain 21 and the 3rd incident area 23 are injected, and are projected from the exit facet 20o of lens 20L to the direction vertical with exit facet 20o
Light is hardly reflected in the plane of incidence 30i of light guide 30 and is injected into light guide 30.In addition, injected from the 2nd incident area 22,
To the light projected with exit facet 20o non-perpendicular direction, reflects in the plane of incidence 30i of light guide 30 and penetrated into light guide 30 again
Enter.At this point, if lens 20L and light guide 30 are identical refractive index, to the light projected with exit facet 20o non-perpendicular direction
Light guide 30 in transmission direction, be and the transmission direction substantially common direction in lens 20L.
The light transmitted in light guide 30 is projected from the exit facet 30o of light guide 30.It is penetrated from the exit facet 30o of light guide 30
Light out is projected via outer cover 2 to outside the vehicle of vehicle VE.
As described above, the lamps apparatus for vehicle 1 of present embodiment has light guide 30, which has and lens
The exit facet 20o of 20L opposite plane of incidence 30i.As described in the first embodiment, lens 20L can be easily
Project light to desired direction.Therefore, light can be made suitably to be incident upon light guide 30.
In addition, as noted above, the exit facet 20o of the light of the lens 20L of present embodiment, and injected to lens 20L
The optical axis of light from LED 13 is vertical.Therefore, as noted above, lens 20L can will enter from the 1st incident area 21 and the 3rd
The light for penetrating the injection of region 23 is vertically projected with exit facet 20o.It therefore, being capable of entering from the light guide 30 opposite with exit facet 20o
Penetrating face 30i enters light emission in a manner of being no more than the numerical aperture (NA) of light guide 30.Therefore, it can make light efficiently to light guide 30
It injects, light guide 30 is made to shine brighterly.
(the 3rd embodiment)
Next, being illustrated to the 3rd embodiment of the invention.In addition, being closed when being illustrated to present embodiment
The identical or same structural element of 2 embodiment of Yu Yu, marks same reference numeral, in addition to being important to the case where being illustrated
In addition, the repetitive description thereof will be omitted.
Fig. 9 is the figure that the appearance of the lamps apparatus for vehicle 1 in present embodiment is indicated in the same manner as Fig. 3, and Figure 10 is Fig. 9
The enlarged drawing of LED socket and light guide.As shown in Figure 9, Figure 10, the vehicle of the lamps apparatus for vehicle 1 of present embodiment and the 2nd embodiment
With lamps and lanterns 1 the difference lies in that the lens 20L and light guide 30 of the 2nd embodiment can be integrated.Therefore, in present embodiment
In, lens 20L and light guide 30 are it will be appreciated that be a light guide 40, and plane of incidence 20i is it will be appreciated that be the plane of incidence for being light guide 40.
Therefore, in the side plane of incidence 20i of light guide 40, the length direction of light guide 40 from each LED 13 injection to light guide 40 before injecting
Each light optical axis direction extend.
In the lamps apparatus for vehicle 1 of present embodiment, the light projected from each LED 13, such as the institute in the 1st embodiment
As explanation, injected from plane of incidence 20i to light guide 40.Therefore, the light injected from the 1st incident area 21 and from the 3rd incidence zone
Domain 23 is injected and the light of the reflection of internally reflected region 24, each light before injecting from each LED 13 injection to light guide 40
The direction of optical axis transmitted in light guide 40.In addition, from the 2nd incident area 22 inject light, in light guide 40 with to
It is transmitted in the direction that the optical axis of light before the injection of light guide 40 is different.The light transmitted in light guide 40, from going out for light guide 40
Penetrate face 30o injection.The light projected from the exit facet 30o of light guide 40, is projected via outer cover 2 to outside the vehicle of vehicle VE.
As described above, the lamps apparatus for vehicle 1 of present embodiment has light guide 40, which has and the 1st
The identical plane of incidence 20i of the plane of incidence 20i of embodiment.Therefore, as noted above, lens 20L can make from the 1st incident area
The light that 21 and the 3rd incident area 23 is injected is transmitted along the extending direction of light guide 40.
In addition, in the present embodiment, the light guide 40 being integrally formed with lens 20L and light guide 30.Therefore, real with the 2nd
It applies mode and compares and the loss of light is inhibited, light guide 40 can be made to shine brighterly.
More than, it about the present invention, is illustrated by taking the 1st to the 3rd embodiment as an example, but the present invention is not limited to this
A little modes.
For example, in the above-described embodiment, plane of incidence 20i includes the paraboloid of revolution as multiple 1st incident areas 21
Respective vertex 21t, the paraboloid of revolution be located at from each LED 13 project and from the plane of incidence 20i injection before each light optical axis
On.But the present invention is not limited to this.Although however, you can also not wrap for example, plane of incidence 20i includes the above-mentioned paraboloid of revolution
Vertex 21t containing the paraboloid of revolution.Figure 11 is the enlarged drawing for indicating the 1st variation of plane of incidence 20i of structure as described above.
In addition, about the structural element identical or same with above embodiment, marking same ginseng when being illustrated to this variation
Sighting target number, other than being important to the case where being illustrated, the repetitive description thereof will be omitted.It, will be by as joint face in Figure 11
The 1st incident area 21 as the paraboloid of revolution that 2nd incident area 22 blocks is shown by dashed lines.As shown in figure 11, in this change
In shape example, the vertex 21t of the paraboloid of revolution of the 1st incident area 21 is blocked by the 2nd incident area 22.In this case, the 2nd enters
Penetrating region 22 can be located at from the optical axis of each light before plane of incidence 20i injection.As described above, in the 2nd as joint face
Incident area 22 be located at from each LED 13 project and on the optical axis of the plane of incidence 20i each light injected in the case where, from each
Light on the optical axis for the light that a LED 13 is projected is injected from the 2nd incident area 22.Around light and optical axis on the optical axis of LED 13
Light it is high compared to intensity.Therefore, plane of incidence 20i does not include the respective vertex 21t of multiple paraboloids of revolution, thus it enables that optical axis
On the high light of intensity disperse in lens 20L and transmit.Therefore, it from the light that lens 20L is projected, is being able to suppress and LED
The point that the corresponding light of 13 optical axis consumingly shines shines.
In addition, in the above-described embodiment, the 2nd incident area 22 as joint face is set as convex.But the present invention is simultaneously
It is not limited to this, the 2nd incident area 22 also can be set to concavity.Figure 12 is the plane of incidence 20i for indicating structure as described above
The enlarged drawing of 2nd variation.In addition, when being illustrated to this variation, about identical as above embodiment or same
Structural element marks same reference numeral, and other than being important to the case where being illustrated, the repetitive description thereof will be omitted.Such as Figure 12
It is shown in this way, the 2nd incident area 22 is set as concavity.In addition, in the example in figure 12, plane of incidence 20i includes as multiple 1
The respective vertex 21t of the paraboloid of revolution of incident area 21.But plane of incidence 20i can also not include vertex 21t, the 2nd is incident
Region 22 is located at from the optical axis of each light before plane of incidence 20i injection.In this case, the 2nd incident area of plane of incidence 20i
22 are for example set as the shape as shown in the dotted line of Figure 12.It is as described above concavity as the 2nd incident area 22 of joint face, thus
Be capable of increasing to the 2nd incident area 22 inject light the angle of divergence, be able to suppress in exit facet 20o with the 2nd incident area 22
Brightness is uneven at opposite position.
Alternatively, the 2nd incident area 22 as joint face also can be set to it is planar.Figure 13 is to indicate to tie as described above
The enlarged drawing of the 3rd variation of the plane of incidence 20i of structure.In addition, when being illustrated to this variation, about with above-mentioned embodiment party
The identical or same structural element of formula, marks same reference numeral, other than being important to the case where being illustrated, omits and repeats
Explanation.As shown in Figure 13, the 2nd incident area 22 is set as planar.In addition, in the example of Figure 13, plane of incidence 20i
It include the respective vertex 21t of the paraboloid of revolution as multiple 1st incident areas 21.But plane of incidence 20i can not also be wrapped
21t containing vertex, the 2nd incident area 22 are located at from the optical axis of each light before plane of incidence 20i injection.In this case, incident
The 2nd incident area 22 of face 20i is for example set as the shape indicated by the dotted line of Figure 12.
In addition, plane of incidence 20i includes the 2nd incidence as joint face in above embodiment and above-mentioned variation
Region 22, but plane of incidence 20i can also not include the 2nd incident area 22, but the 1st incident area 21 connects directly with one another.
In addition, in the above-described embodiment, multiple LED 13 are configured on the basis of central axis CL in the position of rotational symmetry
It sets, but in the present invention, multiple LED 13 can not also be configured in rotational symmetry.In this case, in such as above embodiment
And in the case that above-mentioned variation includes the 2nd incident area 22 like that, the 2nd incident area 22 may not be is with central axis CL
The shape of benchmark and rotational symmetry.
In addition, in the above-described embodiment, as the light source with multiple LED 13, being carried out by taking LED socket 10 as an example
Illustrate, but light source of the invention is not limited to LED socket 10, as long as having multiple LED 13, for example, it can be in substrate
The upper light source with multiple LED 13.
In addition, in the above-described embodiment, the structure that the light for being set as projecting from LED 13 is directly injected from plane of incidence 20i,
But the light projected from LED 13 can also be reflected, be reflected and be injected from plane of incidence 20i.Therefore, in the above-described embodiment,
Illustrate to extend for each rotary shaft RA along the optical axis direction for the light from each LED 13 injected to plane of incidence 20i, but the light
Optical axis be will to plane of incidence 20i inject before light optical axis.
Industrial applicibility
According to the present invention, the lamps apparatus for vehicle that can project light to direction appropriate is provided, it can be in the vehicle of automobile etc.
It is utilized with field of headlamp etc..
Claims (9)
1. a kind of lamps apparatus for vehicle comprising:
Light source, with multiple LED；And
Light guide member has the plane of incidence of the light projected from the light source,
The plane of incidence includes a part of multiple paraboloids of revolution,
The rotary shaft of each paraboloid of revolution is thrown with the plane of incidence described in the optical axis direction along the light projected from each LED
The exit facet of the light of each LED of shadow is overlapped, along the optical axis direction for the light from the LED injected to the plane of incidence
Extend.
2. lamps apparatus for vehicle according to claim 1, which is characterized in that
The plane of incidence also includes the joint face for being attached the paraboloid of revolution described at least two.
3. lamps apparatus for vehicle according to claim 2, which is characterized in that
The joint face is convex.
4. lamps apparatus for vehicle according to claim 2, which is characterized in that
The joint face is concavity.
5. lamps apparatus for vehicle according to any one of claim 2 to 4, which is characterized in that
The joint face is non-rotational symmetric shape,
The light respectively projected from the multiple LED, from the position of the rotational symmetry on the basis of the rotary shaft of the joint face to
The light guide member is injected.
6. the lamps apparatus for vehicle according to any one of claim 2 to 5, which is characterized in that
The plane of incidence does not include the respective vertex of the multiple paraboloid of revolution, and the joint face is located at each optical axis
On.
7. lamps apparatus for vehicle according to any one of claim 1 to 5, which is characterized in that
The plane of incidence includes the respective vertex of the multiple paraboloid of revolution, and the paraboloid of revolution is located at the optical axis
On.
8. lamps apparatus for vehicle according to any one of claim 1 to 7, which is characterized in that
The light guide member is the lens for having exit facet in the position opposite with the plane of incidence.
9. lamps apparatus for vehicle according to any one of claim 1 to 7, which is characterized in that
The light guide member is light guide of the position other than the position opposite with the plane of incidence with exit facet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-083455 | 2018-04-24 | ||
| JP2018083455A JP2019192471A (en) | 2018-04-24 | 2018-04-24 | Lighting fixture for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110397893A true CN110397893A (en) | 2019-11-01 |
| CN110397893B CN110397893B (en) | 2022-06-03 |
Family
ID=68323568
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920568382.6U Active CN210319837U (en) | 2018-04-24 | 2019-04-24 | Vehicle lamp |
| CN201910334487.XA Active CN110397893B (en) | 2018-04-24 | 2019-04-24 | Vehicle lamp |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920568382.6U Active CN210319837U (en) | 2018-04-24 | 2019-04-24 | Vehicle lamp |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019192471A (en) |
| CN (2) | CN210319837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138438A (en) * | 2020-01-17 | 2021-07-20 | 株式会社东海理化电机制作所 | Fixing structure of light guide member |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019192471A (en) * | 2018-04-24 | 2019-10-31 | 株式会社小糸製作所 | Lighting fixture for vehicle |
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| US6527411B1 (en) * | 2000-08-01 | 2003-03-04 | Visteon Corporation | Collimating lamp |
| CN1525098A (en) * | 2003-02-25 | 2004-09-01 | ��ʽ����è�� | Illumination apparatus |
| KR100700203B1 (en) * | 2005-12-14 | 2007-03-28 | 에스엘 주식회사 | Vehicle lamp using reflector |
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| CN103090290A (en) * | 2011-11-07 | 2013-05-08 | 福特全球技术公司 | Crystal off-axis led headlamp |
| CN107091443A (en) * | 2016-02-18 | 2017-08-25 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| CN107270241A (en) * | 2017-06-19 | 2017-10-20 | 江苏亿诺车辆部件有限公司 | A kind of automobile lamp lens |
| CN210319837U (en) * | 2018-04-24 | 2020-04-14 | 株式会社小糸制作所 | Vehicle lamp |
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2018
- 2018-04-24 JP JP2018083455A patent/JP2019192471A/en active Pending
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- 2019-04-24 CN CN201920568382.6U patent/CN210319837U/en active Active
- 2019-04-24 CN CN201910334487.XA patent/CN110397893B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6527411B1 (en) * | 2000-08-01 | 2003-03-04 | Visteon Corporation | Collimating lamp |
| CN1525098A (en) * | 2003-02-25 | 2004-09-01 | ��ʽ����è�� | Illumination apparatus |
| KR100700203B1 (en) * | 2005-12-14 | 2007-03-28 | 에스엘 주식회사 | Vehicle lamp using reflector |
| CN101527982A (en) * | 2008-03-03 | 2009-09-09 | 红蝶科技(深圳)有限公司 | LED chip and LD chip hybrid-package light source and liquid crystal projecting apparatus |
| CN103090290A (en) * | 2011-11-07 | 2013-05-08 | 福特全球技术公司 | Crystal off-axis led headlamp |
| CN107091443A (en) * | 2016-02-18 | 2017-08-25 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| CN107270241A (en) * | 2017-06-19 | 2017-10-20 | 江苏亿诺车辆部件有限公司 | A kind of automobile lamp lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138438A (en) * | 2020-01-17 | 2021-07-20 | 株式会社东海理化电机制作所 | Fixing structure of light guide member |
| CN113138438B (en) * | 2020-01-17 | 2023-08-22 | 株式会社东海理化电机制作所 | Fixing structure of light guide component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019192471A (en) | 2019-10-31 |
| CN110397893B (en) | 2022-06-03 |
| CN210319837U (en) | 2020-04-14 |
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