CN209470134U - A kind of light fixture of achievable distance-light switching - Google Patents
A kind of light fixture of achievable distance-light switching Download PDFInfo
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- CN209470134U CN209470134U CN201920435808.0U CN201920435808U CN209470134U CN 209470134 U CN209470134 U CN 209470134U CN 201920435808 U CN201920435808 U CN 201920435808U CN 209470134 U CN209470134 U CN 209470134U
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Abstract
The utility model relates to a kind of light fixtures of achievable distance-light switching, including one first lens, low beam light source, high-beam light source, the second lens and the third lens, first lens have an incidence surface and a light-emitting surface, the incidence surface of first lens is a flat surface, the light-emitting surface of first lens is convex surface, second, third described lens are convex lens；The low beam light source and high-beam light source are all disposed on the same plane of the side of the incidence surface of first lens, and the light of the low beam light source, high-beam light source is emitted via the incidence surface for being re-directed towards the first lens after second, third lens Refractive focusing respectively, the low beam light source is located on the optical axis of first lens, the high-beam light source is set to the side of low beam light source, to realize the switching of distance-light by lighting instant and near light light source respectively.
Description
Technical field
The utility model relates to lighting areas, are specifically related to a kind of light fixture of achievable distance-light switching.
Background technique
The headlamp of the vehicles such as car headlamp has its unique light distribution structure, can also be divided according to luminous type
For high beam and dipped headlight.Such as the light that high beam issues is shot forward straight after the reflection of lampshade reflector, it is " remote with formation
Light ".The light that dipped headlight issues keeps off the top half to lampshade reflector to barn door, and the light reflected away is all unrestrained downward
Directive ground, with formation " dipped beam ", to will not cause to dazzle the eyes to the driver of opposite car, the illumination mould with distance-light at present
Group, light barrier realize that distance-light is converted by solenoid valve control light barrier, and structure is complicated for the illumination module, cost is high,
And solenoid valve is easy to damage, and the service life is short and maintenance cost is high.
Utility model content
The utility model is intended to provide a kind of light fixture of achievable distance-light switching, is cut with solving existing instant and near light
Change the problem that structure is complicated, cost is high.
Concrete scheme is as follows:
A kind of light fixture of achievable distance-light switching, including one first lens, low beam light source, high-beam light source, second
Lens and the third lens, first lens have an incidence surface and a light-emitting surface, and the incidence surface of first lens is a flat surface,
The light-emitting surface of first lens is convex surface, second, third described lens are convex lens；The low beam light source and high-beam light source are all
It is positioned close on the same plane of the side of the incidence surface of first lens, and the light of the low beam light source, high-beam light source
Line is emitted via the incidence surface for being re-directed towards the first lens after second, third lens Refractive focusing respectively, and the low beam light source is located at
On the optical axis of first lens, the high-beam light source is set to the side of low beam light source.
Further, the low beam light source and high-beam light source are respectively positioned on the focal plane of the incidence surface side of first lens
On.
Further, the low beam light source is made of several the first LED lamp beads, and the high-beam light source is by several second
LED lamp bead composition, the intersection point that the optical axis of definition first lens intersects with its focal plane is origin, and in the coke of the first lens
The XY two-dimensional coordinate system with the origin for its intersection point is formed in plane, all first LED lamp beads of the low beam light source are respectively positioned on X
Above axis, all second LED lamp beads of the high-beam light source are respectively positioned below X-axis.
Further, every one second LED lamp bead of the high-beam light source all has the third lens of matched setting.
Further, all first LED lamp beads of the low beam light source share second lens.
Further, the light-emitting surface of first lens is elliposoidal convex surface.
Further, the vertical range between the focal plane and its incidence surface of first lens is 10~40mm, described
Vertical range between the vertex of the light-emitting surface of first lens and its incidence surface is 10~35mm.
Further, the vertical range between the focal plane and its incidence surface of first lens be 22mm, described first
Vertical range between the vertex of the light-emitting surface of lens and its incidence surface is 25mm.
The light fixture of achievable distance-light switching provided by the utility model has following excellent compared with prior art
Point: for light fixture provided by the utility model when low beam light source is lighted, the light that low beam light source issues first passes through the second lens
It is emitted the hot spot for meeting dipped beam regulation to be formed with dead line after refraction via the first lens again；When high-beam light source is lighted,
High-beam light source issue light by the third lens reflect again via the first lens outgoing after formed left and right width it is smaller, brightness compared with
The high hot spot for meeting distance light regulation, realizes the switching of distance-light by lighting instant and near light light source respectively, and structure is simple, body
Product is also smaller, and is without the use of solenoid valve and light barrier, cost-saved.
Detailed description of the invention
Fig. 1 shows the stereoscopic schematic diagram of light fixture.
Fig. 2 shows the side views of light fixture.
Fig. 3 shows the front view of light fixture.
Fig. 4 shows the hot spot figure of dipped beam.
Fig. 5 shows the hot spot figure of distance light.
Fig. 6 a shows the schematic diagram of the first arrangement mode of low beam light source and high-beam light source.
What Fig. 6 b showed second of arrangement mode of low beam light source and high-beam light source shows schematic diagram.
What Fig. 6 c showed the third arrangement mode of low beam light source and high-beam light source shows schematic diagram.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1-Figure 3, the utility model provides a kind of light fixture of achievable distance-light switching, including one the
One lens 10, low beam light source 20, high-beam light source 30, the second lens 40 and the third lens 50 need it is clear that relative to lens
For volume, the volume of low beam light source 20 and high-beam light source 30 will be much smaller than the first lens 10, same second lens 40 and the
The volume of three lens 50 also much smaller than the first lens volume, therefore low beam light source 20, high-beam light source 30 can approximation see as
The point light source of first lens.
First lens 10 have an incidence surface 100 and a light-emitting surface 110, and the incidence surface of first lens 10 is one flat
Face, the plano-convex lens that light-emitting surface 110 is convex surface, therefore first lens are positive the lens of refractive index, the optical axis of first lens
It is defined as optical axis A, the focal plane of incident side is defined as focal plane B.Second lens 40 and the third lens 50 are convex lens,
It can be the plano-convex lens that incidence surface is plane, light-emitting surface is convex surface or incidence surface and light-emitting surface is the lenticular on convex surface
Mirror is illustrated so that second lens 40 and the third lens 50 are plano-convex lens as an example in the present embodiment.
The low beam light source 20 and high-beam light source 30 are all disposed within the side of the incidence surface 100 close to first lens 10
Same plane on, and the light of the low beam light source 20, high-beam light source 30 is respectively via the second lens 40 and the third lens 50
The incidence surface 100 that the first lens 10 are re-directed towards after Refractive focusing is emitted, and the low beam light source is located at the optical axis of first lens
On, the high-beam light source is set to the side of low beam light source.
When low beam light source 20 is lighted, the light that low beam light source 20 issues first passes through the second lens Refractive focusing again via the
The outgoing of one lens 10 forms the hot spot for meeting dipped beam regulation for having dead line, and the hot spot figure of the dipped beam formed is as shown in Figure 4；
When high-beam light source 30 is lighted, the light that high-beam light source 30 issues is first via saturating via first again after 50 Refractive focusing of the third lens
The outgoing of mirror 10 forms that left and right width is smaller, the higher hot spot for meeting distance light regulation of brightness, hot spot figure such as Fig. 5 of the distance light of formation
It is shown.
In the present embodiment, preferably, the low beam light source 20 and high-beam light source 30 are respectively positioned on first lens 10
On the focal plane B of incidence surface side, so that high-beam light source 30 and low beam light source 20 are formed by distance light hot spot and dipped beam hot spot more
Meet distance light regulation and dipped beam regulation.
In the present embodiment, preferably, another preferably, with reference to Fig. 3, Fig. 6 a- Fig. 6 c, the low beam light source 20 is by several
The first LED lamp bead 200 composition, the high-beam light source 30 are made of several the second LED lamp beads 300, define described first thoroughly
The intersection point that the optical axis A of mirror 10 intersects with its focal plane B is origin O, and is formed on the focal plane B of the first lens 10 with the origin
O is the XY two-dimensional coordinate system of its intersection point.Wherein, with reference to Fig. 6 a- Fig. 6 c, the LED lamp bead tool of low beam light source 20 and high-beam light source 30
There are many modes of laying.But all first LED lamp beads 200 of the low beam light source 20 are respectively positioned on above X-axis, the distance light light
All second LED lamp beads 300 in source 30 are respectively positioned below X-axis, so that high-beam light source 30 and low beam light source 20 are formed by distance light
Hot spot and dipped beam hot spot more meet distance light regulation and dipped beam regulation.
Preferably, every one second LED lamp bead 300 of the high-beam light source 30 is all with the third lens of matched setting
50.Another to be preferably, all first LED lamp beads 200 of the low beam light source 20 share second lens 40.The two
The setting and installation being provided to convenient for the second lens 40 and the third lens 50 are set.
With reference to Fig. 1-Fig. 3, in the present embodiment, preferably, the light-emitting surface of first lens 10 is elliposoidal convex surface, need
It is clear that spheroid shape convex surface mentioned here refers in the light-emitting surface 110 and spheroid shape surface of first lens 10 wherein
A part matches, and the light-emitting surface for being not necessarily referring to the first lens 10 is the shape of entire elliposoidal.
Wherein, elliposoidal convex surface can be indicated by surface fitting formula:
Z=p10*x+p01*y+p20*x^2+p11*x*y+p02*y^2+p30*x^3+p21*x^2*y+ p12*x*y^2+
p03*y^3+p40*x^4+p31*x^3*y+p22*x^2*y^2+p13*x*y^3+p04*y^4+p50*x^5+p41*x^4*y+
p32*x^3*y^2+p23*x^2*y^3+p14*x*y^4+p05*y^5+p60*x^6+p51*x^5*y+p42*x^4*y^2+p33*x
^3*y^3+p24*x^2*y^4+p15*x^1*y^5+p06*y^6
Wherein the value range of p is as follows:
Wherein the face type of the light-emitting surface 110 of the first lens 10 in Fig. 1 is to be formed by face type by above-mentioned preferred value.
It is another to be preferably, preferably, the vertical range between the focal plane B and the incidence surface 100 of the first lens 10
Be preferably 10~40mm for L1, L1, between the vertex and incidence surface 100 of the light-emitting surface 110 of first lens 10 it is vertical away from
From the thickness for L2 namely 10 thickness of the first lens, L2 is preferably 10~35mm.More optimizedly L1=22mm, L2=
25mm。
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (8)
1. a kind of light fixture of achievable distance-light switching, it is characterised in that: including one first lens, low beam light source, distance light
Light source, the second lens and the third lens, first lens have an incidence surface and a light-emitting surface, the incidence surface of first lens
It is a flat surface, the light-emitting surface of first lens is convex surface, second, third described lens are convex lens；The low beam light source and
High-beam light source is all disposed on the same plane of the side of the incidence surface of first lens, and the low beam light source, remote
The light of radiant is emitted via the incidence surface for being re-directed towards the first lens after second, third lens Refractive focusing respectively, described close
Radiant is located on the optical axis of first lens, and the high-beam light source is set to the side of low beam light source.
2. light fixture according to claim 1, it is characterised in that: the low beam light source and high-beam light source are respectively positioned on described
On the focal plane of the incidence surface side of first lens.
3. light fixture according to claim 1, it is characterised in that: the low beam light source is by several the first LED lamp beads
Composition, the high-beam light source are made of several the second LED lamp beads, and the optical axis for defining first lens intersects with its focal plane
Intersection point be origin, and formed on the focal plane of the first lens be with the origin its intersection point XY two-dimensional coordinate system, it is described close
All first LED lamp beads of radiant are respectively positioned on above X-axis, and all second LED lamp beads of the high-beam light source are respectively positioned under X-axis
Side.
4. light fixture according to claim 3, it is characterised in that: every one second LED lamp bead of the high-beam light source is all
The third lens with matched setting.
5. light fixture according to claim 3, it is characterised in that: all first LED lamp beads of the low beam light source are total
With second lens.
6. light fixture according to claim 1, it is characterised in that: the light-emitting surface of first lens is that elliposoidal is convex
Face.
7. light fixture according to claim 6, it is characterised in that: the focal planes of first lens and its incidence surface it
Between vertical range be 10~40mm, vertical range between the vertex and its incidence surface of the light-emitting surface of first lens is 10
~35mm.
8. light fixture according to claim 7, it is characterised in that: the focal planes of first lens and its incidence surface it
Between vertical range be 22mm, vertical range between the vertex and its incidence surface of the light-emitting surface of first lens is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920435808.0U CN209470134U (en) | 2019-04-02 | 2019-04-02 | A kind of light fixture of achievable distance-light switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920435808.0U CN209470134U (en) | 2019-04-02 | 2019-04-02 | A kind of light fixture of achievable distance-light switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209470134U true CN209470134U (en) | 2019-10-08 |
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ID=68093318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920435808.0U Active CN209470134U (en) | 2019-04-02 | 2019-04-02 | A kind of light fixture of achievable distance-light switching |
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| Country | Link |
|---|---|
| CN (1) | CN209470134U (en) |
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2019
- 2019-04-02 CN CN201920435808.0U patent/CN209470134U/en active Active
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