CN106764806A - Lens, car headlamp and automobile for car light - Google Patents
Lens, car headlamp and automobile for car light Download PDFInfo
- Publication number
- CN106764806A CN106764806A CN201710009639.XA CN201710009639A CN106764806A CN 106764806 A CN106764806 A CN 106764806A CN 201710009639 A CN201710009639 A CN 201710009639A CN 106764806 A CN106764806 A CN 106764806A
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- lens
- minute surface
- light
- car
- circumferentia
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- 238000010586 diagram Methods 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 10
- 238000004088 simulation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 241000736199 Paeonia Species 0.000 description 1
- 235000006484 Paeonia officinalis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/265—Composite lenses; Lenses with a patch-like shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
Abstract
The present invention relates to automobile lamp technical field, more particularly to a kind of lens, a kind of car headlamp and a kind of automobile including the headlamp using the lens for car light.The lens for car light include the first minute surface and second minute surface relative with the first minute surface, and the first minute surface is curved surface or plane, and the second minute surface includes the circumferentia of multiple concentric-ring patterns.By setting multiple circumferentias on the second minute surface of lens, on the premise of not influenceing horizontal parallel light to be focused on through lens forming, can will be divided into several facets from the horizontal by the incident light of angle parallel incident so that the light through reflection from lens and the light through lens all can not be focused on effectively.Therefore, exterior focusing and the inner focusing through lens forming that sunlight is formed in car headlamp through reflection from lens can be eliminated using the car headlamp of the lens, it is to avoid the part that sunlight is internally located at lens inner side and outer side to car headlamp causes to damage.
Description
Technical field
The present invention relates to automobile lamp technical field, more particularly to a kind of lens, one kind for car light is using the lens
Car headlamp and a kind of automobile including the headlamp.
Background technology
The projection-type illuminator commonly used in automobile lamp, typically all includes light source, speculum, shadow shield and lens.
Speculum is elliposoidal, and the centre of luminescence of light source is arranged at the perifocus of ellipsoidal shaped mirror, and the light that light source sends passes through
Converged at after ellipsoidal shaped mirror reflection near the over focus of ellipsoidal shaped mirror, shadow shield is arranged at the remote of ellipsoidal shaped mirror
Focal point, its shape is consistent with the "cut-off"line shape required by dipped beam, and "cut-off"line is carried finally by lens forming
Class directional light lower beam illumination light shape.The characteristics of car headlamp be the light that sends of light source by lens inner side minute surface laterally
Minute surface is projected, incident ray minute surface on the inside of directive after focusing near lens focus, and it is close to horizontal direction to project light.Cause
This, car lamp lens only consider horizontal parallel light or the focusing close to horizontal direction light, and sunshine directive lens are general
It is continually changing by top directive lens obliquely, and angle.
As shown in figure 1, traditional lens use planoconvex spotlight, its inner side minute surface is plane, is set towards light source, outside mirror
Face is aspherical, and the light of light source after the focusing of planoconvex spotlight near focal point by the inner side minute surface of planoconvex spotlight, penetrate laterally by minute surface
Go out, it is close to horizontal direction to project light.Traditional planoconvex spotlight material is transparent plastic or glass, such as PC
(Polycarbonate, makrolon), PMMA (Polymethyl Methacrylate, polymethyl methacrylate) etc..Root
According to its diameter and focal length, its maximum gauge is 20 millimeters to 50 millimeters, and being advantageous in that for this lens passes through
Aspherical convex lens design, the existing Aberration Problem of correction spherical convex lens imaging, becomes apparent from lens imaging, undistorted.
But also bring solar irradiation on daytime is mapped to lens to this lens simultaneously, in the anterior focusing of lens after reflection from lens, and
Converged by after lens refraction, focused at speculum rear portion, burn the problem of part in lamp.And with angle of incidence of sunlight degree
Difference, focal position is within the specific limits dynamic change.As shown in Figure 2, Figure 3 and Figure 4, respectively from the horizontal by 30 °,
The focusing simulation of minute surface on the outside of the 45 ° and 60 ° parallel rays directive planoconvex spotlights at angle.Wherein, Fig. 2 show from the horizontal by
30 ° of parallel rays at angle are by the side of minute surface forms inner focusing on the inside of planoconvex spotlight after planoconvex spotlight；Fig. 3 shows and level
The parallel rays at direction angle at 45 ° by after planoconvex spotlight on the inside of planoconvex spotlight minute surface side formed inner focusing, through inner side
Then the side of minute surface forms exterior focusing to light after mirror-reflection on the outside of planoconvex spotlight；Fig. 4 is shown from the horizontal by 60 ° of angles
Parallel rays by planoconvex spotlight when, incidence angle forms total reflection more than the angle of total reflection when major part is irradiated to inner side minute surface,
The side of minute surface forms the exterior focusing compared with high light energy on the outside of planoconvex spotlight.
The patent of publication number CN 101298906A discloses a kind of car headlamp based on biconvex lens, using inner side
The biconvex lens design that minute surface is sphere, outside minute surface is free form surface, reduces reflection and focuses on focal length, reduces the sun
Light focuses on the risk for burning other parts on car light or automobile after reflection from lens.As shown in figure 5, sunshine L3 is with certain angle
The directional light of degree is incident, and after being reflected through biconvex lens 4, reflected light L1 is focused near at A, after being reflected through planoconvex spotlight 6, reflection
Light L2 is focused near B, it can be seen that the focus position reflected through biconvex lens is less than the focus point reflected through planoconvex spotlight
Position.But this design still suffers from following several shortcomings：
(1) biconvex lens is only capable of the focal length reduced after sunshine reflection, reduces sunshine and burning is focused on after reflection from lens
The risk of other parts on car light or automobile is ruined, the problem focused on after reflection can not be completely eliminated.
(2) biconvex lens can not solve sunshine through after lens inner side minute surface side formed inner focusing burn
The problem of mirror inner side parts.
(2) biconvex lens is due to its light path principle, and size is still partially thick, and materials are more, causes high cost, and quality is big etc.
Defect, is unfavorable for the resistance to shock in driving conditions, also, light path of the light in lens is larger, causes light in lens
The luminous energy absorbed by lens when portion propagates is more, reduces the light efficiency of projection-type illuminator.
The content of the invention
Before the technical problem to be solved in the present invention is to provide a kind of lens, a kind of automobile using the lens for car light
Illuminator and a kind of automobile including the headlamp, can avoid sunshine from forming exterior focusing and through lens forming through reflection from lens
Inner focusing, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of lens for car light, lens include the first minute surface and second minute surface relative with the first minute surface, the first mirror
Face is curved surface or plane, and the second minute surface includes the circumferentia of multiple concentric-ring patterns.
Preferably, all circumferentias are curved surface or are the conical surface.
Preferably, when the first minute surface and all circumferentias are curved surface, the equation of curved surface is：
In formula, x, y are respectively the radius value of the first minute surface and circumferentia；
cx=1/Rx, cy=1/Ry, Rx、RyThe respectively radius of curvature of the first minute surface and circumferentia；
kx、kyThe respectively circular cone coefficient of the first minute surface and circumferentia, -1 ＜ kxThe ＜ k of ＜ 1, -1y＜ 1.
Preferably, imprinting has multiple concentric circles on the second minute surface, and the second minute surface is divided into multiple ring-types by multiple concentric circles
Face.
Preferably, the second minute surface includes the first demifacet and the second demifacet, and step is passed through between the first demifacet and the second demifacet
Face connects, and the first demifacet is curved surface, and imprinting has multiple isocentric circular arcs on the second demifacet, and multiple isocentric circular arcs split the second demifacet
Into multiple circumferentias, and circumferentia is curved.
Preferably, imprinting has bar column decorative pattern on step surface.
Preferably, all circumferentias in staged be distributed, and lens thickness be gradually reduced from center to excircle or
Gradually increase.
Preferably, all circumferentias are distributed at grade.
A kind of car headlamp, including light source, speculum, shadow shield and lens, lens are for as described above for car light
Lens.
A kind of automobile, including car headlamp as described above.
Compared with prior art, the present invention has significant progressive：
Lens for car light of the invention, by setting multiple circumferentias on the second minute surface of lens, are not influenceing
On the premise of horizontal parallel light is focused on through lens forming, will can be divided into from the horizontal by the incident light of angle parallel
Several facets are incident so that the light through reflection from lens and the light through lens all can not be focused on effectively.Therefore, the present invention
Car headlamp using the lens and the automobile including the headlamp, can eliminate sunlight and be passed through in car headlamp
Exterior focusing and the inner focusing through lens forming that reflection from lens is formed, it is to avoid sunlight is internally located to car headlamp
The part of lens inner side and outer side causes to damage.
Brief description of the drawings
Fig. 1 is the focusing simulation schematic diagram of minute surface on the outside of horizontal parallel light directive planoconvex spotlight.
Fig. 2 is the focusing simulation schematic diagram from the horizontal by minute surface on the outside of 30 ° of parallel rays directive planoconvex spotlights at angle.
Fig. 3 is the focusing simulation schematic diagram of minute surface on the outside of parallel rays directive planoconvex spotlight from the horizontal by 45° angle.
Fig. 4 is the focusing simulation schematic diagram from the horizontal by minute surface on the outside of 60 ° of parallel rays directive planoconvex spotlights at angle.
Fig. 5 is the solar light focusing contrast schematic diagram of biconvex lens of the prior art and planoconvex spotlight.
Fig. 6 is the structure and optical property schematic diagram of the first lens provided in an embodiment of the present invention.
Fig. 7 is the structure and optical property schematic diagram of second lens provided in an embodiment of the present invention.
Fig. 8 is the structural representation of the third lens provided in an embodiment of the present invention.
Fig. 9 is the structural representation of the 4th kind of lens provided in an embodiment of the present invention.
Figure 10 is the focusing of the second minute surface from the horizontal by the lens shown in 30 ° of parallel rays directive Fig. 6 at angle
Simulation schematic diagram.
Figure 11 is the focusing of the second minute surface of the lens shown in parallel rays directive Fig. 6 from the horizontal by 45° angle
Simulation schematic diagram.
Figure 12 is the focusing of the second minute surface from the horizontal by the lens shown in 60 ° of parallel rays directive Fig. 6 at angle
Simulation schematic diagram.
Figure 13 is the structural representation of the car headlamp of the embodiment of the present invention.
In figure：
L1, reflected light L2, reflected light L3, sunshine
4th, biconvex lens 6, planoconvex spotlight A, B, focus point
1st, lens 11, the first minute surface 12, the second minute surface
121st, the first demifacet 122, the second demifacet 123, step surface
13rd, circumferentia 13 ', circumferentia 14, concentric circles
14 ', isocentric circular arc 15, bar column decorative pattern 16, light source
17th, speculum 18, shadow shield
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.These implementation methods are only used for
Illustrate the present invention, and not limitation of the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark
Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Limitation of the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, above-mentioned term can as the case may be understood
Concrete meaning in the present invention.
Additionally, in the description of the invention, unless otherwise indicated, " multiple " is meant that two or more.
As shown in Fig. 6 to Figure 12, a kind of embodiment of the lens for car light of the invention.The lens 1 of the present embodiment are wrapped
Include the first minute surface 11 and second minute surface 12 relative with the first minute surface 11.Wherein, the first minute surface 11 can be set to curved surface, the curved surface
It can be sphere, or aspherical；First minute surface 11 can also be set to plane.Second minute surface 12 includes multiple concentric-ring patterns
Circumferentia 13.Multiple circumferentias 13 can be arranged on the Zone Full of the second minute surface 12, i.e., all of circumferentia 13 is back
Turn face；Multiple circumferentias 13 can also be provided only on a part of region of the second minute surface 12, i.e., all of circumferentia 13 is arc
The circumferentia of shape, another part region of the second minute surface 12 is then set to curved surface, and the curved surface can be sphere, or aspheric
Face.All of circumferentia 13 can be set to curved surface, and the curved surface can be sphere, or aspherical；All of circumferentia
13 can also be set to the conical surface.All of circumferentia 13 can be distributed at grade；Can also be distributed in staged, and made
The thickness of lens 1 is gradually reduced or gradually increases from center to excircle, that is, cause the second minute surface 12 in outer gibbosity or
Inner concavity.
Fig. 6 shows a kind of form of the present embodiment lens 1, and Fig. 6 a are the schematic cross-sectional view and lens 1 in Fig. 6 b along A-A
Optical property schematic diagram.In figure 6, the first minute surface 11 of lens 1 is curved surface, there is imprinting on the Zone Full of the second minute surface 12
Multiple concentric circles 14, multiple concentric circles 14 are concentric with the second minute surface 12, and the second minute surface 12 is divided into multiple by multiple concentric circles 14
Circumferentia 13, all of circumferentia 13 is distributed at grade.Horizontal parallel light is capable of achieving to focus on after passing through the lens 1.
Fig. 7 shows second form of the present embodiment lens 1, and Fig. 7 a are the schematic cross-sectional view and thoroughly along B-B in Fig. 7 b
The optical property schematic diagram of mirror 1.In the figure 7, the first minute surface 11 of lens 1 is curved surface, is carved on the Zone Full of the second minute surface 12
Record has multiple concentric circles 14, and multiple concentric circles 14 are concentric with the second minute surface 12, and be divided into for the second minute surface 12 by multiple concentric circles 14
Multiple circumferentias 13.All of circumferentia 13 is distributed in staged, and causes that the thickness of lens 1 gradually subtracts from center to excircle
It is small.Horizontal parallel light is capable of achieving to focus on after passing through the lens 1.
Fig. 8 shows the third form of the present embodiment lens 1, and Fig. 8 b are the front view of lens 1, and Fig. 8 a are edge in Fig. 8 b
The schematic cross-sectional view of C-C, Fig. 8 c are the side view of lens 1.In fig. 8, the first minute surface 11 of lens 1 is curved surface, the second minute surface
12 include the first demifacet 121 and the second demifacet 122, are connected by step surface 123 between the first demifacet 121 and the second demifacet 122,
The center of circle of the diameter parallel of step surface 123 and lens 1, the first demifacet 121 and the second demifacet 122 is respectively positioned on the axis of lens 1.
First demifacet 121 is curved surface, and imprinting has multiple isocentric circular arcs 14 ' on the second demifacet 122, and multiple isocentric circular arcs 14 ' are by the second half
Face 122 is divided into multiple circumferentias 13 ', and circumferentia 13 ' is curved.Horizontal parallel light is capable of achieving to gather after passing through the lens 1
It is burnt.
Fig. 9 shows the 4th kind of form of the present embodiment lens 1, and Fig. 9 b are the front view of lens 1, and Fig. 9 a are edge in Fig. 9 b
The schematic cross-sectional view of D-D, Fig. 9 c are the side view of lens 1, and Fig. 9 d are the top view of lens 1.In lens 1 and Fig. 8 shown in Fig. 9
The lens 1 for showing are essentially identical, and something in common is repeated no more, and difference is, the lens 1 in Fig. 9 the first demifacet 121 with
Imprinting has bar column decorative pattern 15 on step surface 123 between second demifacet 122, and this column decorative pattern 15 destroys step surface 123
Optical property so that inciding the light on step surface 123 can not effectively focus on.After horizontal parallel light passes through the lens 1
It is capable of achieving to focus on.
Certainly, lens of the invention are not limited to four kinds of forms shown in Fig. 6 to Fig. 9 in the present embodiment.
In four kinds of lens of form 1 shown in above-described Fig. 6 to Fig. 9, in the first minute surface 11, the second minute surface 12
Circumferentia 13, circumferentia 13 ' and the first demifacet 121 are curved surface, and the equation of the curved surface is：
In formula, x, y are respectively the radius value of the first minute surface 11 and circumferentia 13 (or circumferentia 13 ' or first demifacet 121)；
cx=1/Rx, cy=1/Ry, Rx、RyThe song of respectively the first minute surface 11 and circumferentia 13 (or circumferentia 13 ' or first demifacet 121)
Rate radius；kx、kyThe circular cone coefficient of respectively the first minute surface 11 and circumferentia 13 (or circumferentia 13 ' or first demifacet 121), -1
＜ kxThe ＜ k of ＜ 1, -1y＜ 1.
Work as kx=0, kyWhen=0, the first minute surface 11 and circumferentia 13 (or circumferentia 13 ' or first demifacet 121) are ball
Face；Work as kx=0, kyWhen ≠ 0, the first minute surface 11 is sphere, and circumferentia 13 (or circumferentia 13 ' or first demifacet 121) is aspheric
Face；Work as kx≠0、kyWhen=0, the first minute surface 11 is aspherical, and circumferentia 13 (or circumferentia 13 ' or first demifacet 121) is ball
Face.
Figure 10, Figure 11 and Figure 12 are respectively illustrated from the horizontal by 30 °, the 45 ° and 60 ° parallel rays directive Fig. 6 at angle
In the focusing simulation of the second minute surface 12 of lens 1 that shows.By analog result it will be evident that the said lens 1 of the present embodiment
By setting multiple circumferentias 13 on the second minute surface 12, before not influenceing horizontal parallel light to form focusing through lens 1
(as shown in Figure 6) is put, can will be divided into several facets from the horizontal by the incident light of angle parallel incident so that warp
The light of the reflection of lens 1 and the light through lens 1 all can not be focused on effectively.Certainly, according to optical principle, from the horizontal by
The parallel rays of angle from first minute surface 11 of lens 1 it is incident when can also reach same effect.With the lens shown in Fig. 6
1 optical property is similar, and the lens 1 of the present embodiment other forms can be played and eliminated from the horizontal by angle parallel incidence
Light reflects the effect for focusing on and being focused on through lens 1 through lens 1.
Additionally, the lens 1 of the present embodiment compare traditional planoconvex spotlight and existing lenticular due to its optical principle
Mirror, can reach smaller design thickness, and the minimum thickness of the lens 1 of the present embodiment can accomplish 1mm.It is possible thereby to reduce use
Material, reduces cost, meanwhile, light path of the light in lens 1 can be reduced in actual applications, reduce light and passed in lens 1
The optical energy loss of sowing time, improves light efficiency.
The lens 1 of the present embodiment can be made of clear glass, and roller-compaction is fired by glass；Can also be using saturating
Bright plastics are made, by injection molding.
Based on said lens, the present embodiment additionally provides a kind of car headlamp, as shown in figure 13, the automobile of the present embodiment
Headlamp includes light source 16, speculum 17, shadow shield 18 and lens 1.The centre of luminescence of light source 16 is arranged on the near of speculum 17
Focal point, the light that light source 16 sends is converged near the over focus of speculum 17 after speculum 17 reflects, shadow shield 18
It is arranged at the over focus of speculum 17, the shape of shadow shield 18 is consistent with the "cut-off"line shape required by dipped beam, light source
16 light for sending directive lens 1 after the focusing of the near focal point of lens 1, form with "cut-off"line finally by lens 1
Class directional light lower beam illumination light shape.
First minute surface 11 of the lens 1 shown in Figure 13 is set to plane, and as the medial surface towards light source 16, lens 1
The second minute surface 12 the second minute surface 12 for being set to shown in Fig. 6, and as the lateral surface away from light source.Certainly, lens 1 can also be adopted
With any one lens 1 as described above, also, can also be using the first minute surface 11 of lens 1 as lateral surface, the second minute surface 12
As medial surface, after the sunray that can reach makes to be radiated on headlamp reflects through lens 1 and through after lens 1 not
The purpose that can effectively focus on, so as to avoid sunlight is internally located at the inner side and outer side of lens 1 to car headlamp zero
Part causes to damage.When lens 1 as shown in Figure 8 and Figure 9 are used, the first demifacet 121 is located at lower section, and the second demifacet 122 is located at
Top, then can preferably eliminate solar light focusing on the premise of headlamp lighting function is not influenceed.Further, since this reality
The lens 1 for applying example have less thickness, and quality is small, are conducive to improving the resistance to shock during running, meanwhile, it is capable to
Light path of the light that reduction light source 16 sends in lens 1, reduces optical energy loss when light is propagated in lens 1, improves vapour
The light efficiency of Chinese herbaceous peony illuminator illuminator.
Based on above-mentioned car headlamp, the present embodiment additionally provides a kind of automobile, and the automobile of the present embodiment includes as above institute
The car headlamp stated.
In sum, the lens for car light of the present embodiment, by setting multiple rings on the second minute surface 12 of lens 1
Shape face 13, on the premise of not influenceing horizontal parallel light to form focusing through lens 1, will can put down from the horizontal by angle
It is incident that the incident light of row is divided into several facets so that the light through the reflection of lens 1 and the light through lens 1 can not all have
Effect is focused on.Therefore the present embodiment can eliminate sunshine using the car headlamp and the automobile including the headlamp of the lens
The exterior focusing reflected to form through lens 1 when being radiated at car headlamp and the inner focusing formed through lens 1, it is to avoid solar irradiation
Penetrate car headlamp is internally located at the inner side and outer side of lens 1 part cause damage.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and replacement can also be made, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of lens for car light, it is characterised in that the lens (1) including the first minute surface (11) and with first mirror
Relative the second minute surface (12) in face (11), first minute surface (11) is curved surface or plane, and second minute surface (12) is including more
The circumferentia (13) of individual concentric-ring pattern.
2. lens for car light according to claim 1, it is characterised in that all circumferentias (13) are curved surface
Or it is the conical surface.
3. lens for car light according to claim 2, it is characterised in that in first minute surface (11) and all institutes
When stating circumferentia (13) and being curved surface, the equation of the curved surface is：
In formula, x, y are respectively the radius value of first minute surface (11) and the circumferentia (13)；
cx=1/Rx, cy=1/Ry, Rx、RyRespectively described first minute surface (11) and the radius of curvature of the circumferentia (13)；
kx、kyRespectively described first minute surface (11) and the circular cone coefficient of the circumferentia (13), -1 ＜ kxThe ＜ k of ＜ 1, -1y＜ 1.
4. lens for car light according to claim 1, it is characterised in that imprinting has many on second minute surface (12)
Second minute surface (12) is divided into multiple circumferentias (13) by individual concentric circles (14), the multiple concentric circles (14).
5. lens for car light according to claim 1, it is characterised in that second minute surface (12) includes the first half
Face (121) and the second demifacet (122), pass through step surface between first demifacet (121) and second demifacet (122)
(123) connect, first demifacet (121) is curved surface, and imprinting there are multiple isocentric circular arcs (14 ') on second demifacet (122),
Second demifacet (122) is divided into multiple circumferentias (13 '), and the ring-type by the multiple isocentric circular arc (14 ')
Face (13 ') is curved.
6. lens for car light according to claim 5, it is characterised in that imprinting has on the step surface (123)
Bar column decorative pattern (15).
7. lens for car light according to claim 1, it is characterised in that all circumferentias (13) are in staged
It is distributed, and the thickness of the lens (1) is gradually reduced or gradually increases from center to excircle.
8. lens for car light according to claim 1, it is characterised in that all circumferentias (13) are distributed in together
In one plane.
9. a kind of car headlamp, including light source (16), speculum (17), shadow shield (18) and lens (1), it is characterised in that
Lens (1) for car light of the lens (1) described in any one in claim 1 to 8.
10. a kind of automobile, it is characterised in that including car headlamp as claimed in claim 9.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009639.XA CN106764806A (en) | 2017-01-06 | 2017-01-06 | Lens, car headlamp and automobile for car light |
| US16/476,116 US11585507B2 (en) | 2017-01-06 | 2017-04-25 | Lens for automobile lamp, automobile headlamp, and automobile |
| PCT/CN2017/081815 WO2018126564A1 (en) | 2017-01-06 | 2017-04-25 | Lens for automotive lamp, automobile headlamp and automobile |
| EP17889920.9A EP3567303A4 (en) | 2017-01-06 | 2017-04-25 | Lens for automotive lamp, automobile headlamp and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009639.XA CN106764806A (en) | 2017-01-06 | 2017-01-06 | Lens, car headlamp and automobile for car light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764806A true CN106764806A (en) | 2017-05-31 |
Family
ID=58949901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710009639.XA Pending CN106764806A (en) | 2017-01-06 | 2017-01-06 | Lens, car headlamp and automobile for car light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764806A (en) |
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| CN108572063A (en) * | 2017-09-29 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of lens of car light solar light focusing point detection device and its application method |
| CN108776998A (en) * | 2018-05-07 | 2018-11-09 | 常州星宇车灯股份有限公司 | A kind of lens of car light solar light focusing analog analysing method |
| CN109578935A (en) * | 2018-12-12 | 2019-04-05 | 厦门佰明光电股份有限公司 | A kind of lens of car light unit and its application |
| WO2019100639A1 (en) * | 2017-11-21 | 2019-05-31 | 华域视觉科技(上海)有限公司 | Automobile lighting system, automobile lighting assembly and automobile |
| CN109958958B (en) * | 2017-12-14 | 2021-12-07 | Sl株式会社 | Vehicle lamp |
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Application publication date: 20170531 |
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