CN101858550A - LED light source of dipped headlamp of automobile, with cut-off line - Google Patents
LED light source of dipped headlamp of automobile, with cut-off line Download PDFInfo
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- CN101858550A CN101858550A CN201010185383A CN201010185383A CN101858550A CN 101858550 A CN101858550 A CN 101858550A CN 201010185383 A CN201010185383 A CN 201010185383A CN 201010185383 A CN201010185383 A CN 201010185383A CN 101858550 A CN101858550 A CN 101858550A
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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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Abstract
The invention relates to an LED light source of a dipped headlamp of an automobile, with a cut-off line. The LED light source comprises a lens, a bracket assembly and an LED light-emitting chip. The LED light source is characterized in that the lens has non-rotational aspheric surface and is composed of lens systems formed by connecting the lenses with different orientations and non-rotational aspheric surfaces in sequence, wherein a main lens is arranged right ahead of the lens and auxiliary lenses are arranged around the main lens. The LED light source has the following beneficial effects: LED can realize the straight cut-off line light region without obvious dispersion in the forward direction by virtue of the main lens and the straight cut-off line light region without obvious dispersion in other orientations by virtue of the auxiliary lenses; the cut-off line is formed without blocking of any ray; not only the lighting effect is greatly improved, but also the difficulty of designing the cut-off line light region by the optical designers is reduced to some extent, therefore, the development of the dipped headlamp becomes simple and practicable.
Description
Technical field
The invention belongs to auto lamp, relate in particular to the car headlamp led light source that a kind of dipped beam has "cut-off"line.
Background technology
In recent years, be accompanied by the fast development of large power white light LED, energy-efficient LED illumination is tending towards ripe gradually, automotive lighting is as wherein a part of, numerous mechanisms in the industry also begin to further investigate the application of large power white light LED aspect the car light field one after another, and released than matured product, the LED car light is not only energy-conservation, makes also that the outward appearance of car light is more various, fashion more.As automobile front, emergency lighting is its main purpose, headlight causes dazzling for the other side driver when preventing meeting in urban transportation, all there is very strict requirement countries in the world to dipped headlights (also being dipped headlights), require the dipped headlights emitted light must form "cut-off"line clearly, all adopt this mature technology of shading for the formation whole world car light industry overwhelming majority of this line.The inevitable defective of this maturation and conventional techniques is to break through 70% to the utilization rate of light source emitted light is very difficult technically, the dipped beam utilization rate of the H4 based on halogen bulb that wherein is widely used even very difficult breakthrough 50%, the dipped beam practical efficiency of the HID bulb of high-end automobile extensive use also has only about in the of 60%.As seen, the optical design of automobile dipped headlight is the core of car headlamp, also is difficult point.Though vehicle light illumination has entered the LED epoch, all be confined in the application of signal lamp and indoor lamp basically.The LED car light is applied on the headlight, can realize that for how to break through "cut-off"line can significantly improve light efficiency again clearly, and being still all insiders has a difficult problem to be solved.Though existing a few money LED headlights come out, and have entered commercial stage, the formation of dipped beam light shape still forms the master with traditional frequency modulated light plate.Similar with traditional Projecting Lamp, its Lights section changes large power white light LED into, and LED the place ahead is placed with the frequency modulated light plate, and one piece of collector lens is settled in frequency modulated light plate the place ahead, forms "cut-off"line clearly with this.This design when forming "cut-off"line owing to do not break away from the frequency modulated light design yet, so it is difficult to surpass 60% to the luminous utilization rate of LED.Also can reach the level of conventional light source far away with the amount of light of white light LEDs owing to throw light at present,, must need more LED to realize this requirement in order to reach same intensity of illumination.Because the light efficiency of LED is lower at present, its caloric value can be bigger, if LED quantity is too much or make its power excessive, will inevitably cause heat radiation difficult, complicated good cooling mechanism can significantly increase the car light cost again, and if the bad significantly reduction that can cause the LED life-span of dispelling the heat, so, realize that with traditional design automobile dipped headlight is the illumination of light source with LED, also have certain difficulty at present.Can significantly improve the utilization ratio of LED bright dipping, the international standard that satisfies car headlamp again simultaneously is the technical barrier that automobile industry needs to be resolved hurrily.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, and the car headlamp led light source that provides a kind of dipped beam to have "cut-off"line, the light that the LED luminescence chip sends can be realized the light district of band "cut-off"line by the non-spherical surface lens, need not to carry out any light and block, and can improve the utilization rate of light.
The present invention for achieving the above object, by the following technical solutions: a kind of dipped beam has the car headlamp led light source of "cut-off"line, mainly constitute by lens, bracket assembly and LED luminescence chip, it is characterized in that: described lens surface is non-rotating non-spherical surface, described lens by a plurality of differences towards the surface lens that the are non-rotating non-spherical surface set of lenses of forming of joining successively constituted.Lens dead ahead lens are main lens, and lens are attachment lens around the main lens.
Described main lens district is provided with 1 piece of main lens, main lens is non-rotating non-spherical surface, surface configuration is described with a cloud form, when lens material refractive index 1.4～2.4 when interval, each point X, Y, Z three dimension coordinate measurement value scope are on the described some cloud: with the main lens center is the coordinate system initial point, directions X coordinate interval be 0mm～+ 15mm, Y direction coordinate interval is-12mm～+ 12mm; Z direction coordinate interval is-7mm～+ 7mm.
Described attachment lens is distributed as a plurality of differences towards the zone, comprises that upper and lower, left and right and upper left, upper right, lower-left, bottom right amount to the attachment lens district of 8 directions, and described upper and lower is joined successively by 1 piece and above lens and constitutes to each; Described left and right direction is respectively joined successively by lens more than 1 piece and 1 piece and is constituted; Upper left, upper right, lower-left is told by institute, the lower right is joined successively by lens more than 1 piece and 1 piece and constitutes to each, attachment lens is respectively distinguished lens numbers and is no more than 10 pieces at most, described upper and lower, left and right and upper left, upper right, lower-left, lower right to attachment lens relative main lens central horizontal face or vertical plane be and be symmetrical arranged or asymmetric setting.
Described bracket assembly is made of upper and lower reinforcing ring, cladding plate, insulation board and support positive pole, is provided with the negative conducting layer that is connected with the LED luminescence chip that places the bracket assembly center between described cladding plate and the insulation board.
Described LED luminescence chip quantity is 1-10, is divided into up and down 2 line linearities and arranges or have only upside 1 line linearity to arrange separately.
Beneficial effect: LED can realize that forward does not have the in-line "cut-off"line light district of obvious chromatic dispersion by main lens, and attachment lens can form other in-line "cut-off"line light districts towards no obvious chromatic dispersion, and the formation of "cut-off"line need not carried out any light and stop.All light in 360 ° of x180 ° of scopes that the lens cohort can send led chip and the formed planar light source of fluorescent material have all carried out reasonably distributing and utilizing, except that being fallen a part of light by the inner lens surfaces reflection loss, the light that can be used for the car light luminous intensity distribution is in theory near 100%, not only significantly improved light efficiency, but also alleviated the difficulty in optical designers design "cut-off"line light district to a certain extent, make the exploitation of dipped headlights become simple.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a lens forward structure schematic diagram of the present invention;
Fig. 3 is a lens of the present invention left side TV structure schematic diagram;
Fig. 4 is that "cut-off"line forms principle schematic;
Fig. 5 is whole stereoeffect schematic diagram;
Fig. 6 is the three-dimensional distribution effect of the some cloud schematic diagram that forms the main lens surface curve;
Fig. 7 forms the some cloud of main lens surface curve to YZ plane projection distribution schematic diagram;
Fig. 8 is a main lens horizontal direction change of shape schematic diagram;
Fig. 9 is a main lens vertical direction change of shape schematic diagram;
Figure 10 is that the variation schematic diagram is dwindled in the amplification of lens global shape;
Figure 11 is the whole illumination stereoeffect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 12 is whole illumination positive effect and the hot spot subregion schematic diagram that the simulation dipped beam is lit a lamp;
Figure 13 is the main lens illumination positive effect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 14 is the main lens illumination positive effect schematic diagram that actual dipped beam is lit a lamp;
Figure 15 is that attachment lens lighting effect schematic diagram is gone up in 2 districts that the simulation dipped beam is lit a lamp;
Figure 16 is the following attachment lens lighting effect schematic diagram in 2 districts that the simulation dipped beam is lit a lamp;
Figure 17 is 3 district's left redundant lens lighting effect schematic diagrames that the simulation dipped beam is lit a lamp;
Figure 18 is 3 district's right redundant lens lighting effect schematic diagrames that the simulation dipped beam is lit a lamp;
Figure 19 is the 4 districts upper left attachment lens lighting effect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 20 is the 4 districts upper right attachment lens lighting effect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 21 is lower-left, the 4 district attachment lens lighting effect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 22 is bottom right, the 4 district attachment lens lighting effect schematic diagram that the simulation dipped beam is lit a lamp;
Figure 23 is the whole illumination positive effect schematic diagram that the simulation distance light is lit a lamp.
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing and preferred embodiment.
See accompanying drawing for details, a kind of dipped beam has the car headlamp led light source of "cut-off"line, mainly constitute by lens 1, bracket assembly 3 and LED luminescence chip 2, described lens surface is non-rotating non-spherical surface, described lens by a plurality of differences towards the surface lens that the are non-rotating non-spherical surface set of lenses of forming of joining successively constituted.Lens dead ahead lens are main lens 1-1, and lens are attachment lens 1-2 around the main lens.Described main lens district is provided with 1 piece of main lens, main lens is non-rotating non-spherical surface, surface configuration is described with a cloud form, when lens material refractive index 1.4～2.4 when interval, each point X, Y, Z three dimension coordinate measurement value scope are on the described some cloud: with the main lens center is the coordinate system initial point, directions X coordinate interval be 0mm～+ 15mm, Y direction coordinate interval is-12mm～+ 12mm; Z direction coordinate interval is-7mm～+ 7mm.This cloud by corresponding software through generating curved surface after a series of processing, especially as the generation of automobile-exterior face shape curved surface.
Shown in Fig. 2,3, described attachment lens is distributed as a plurality of differences towards the zone, comprises that upper and lower, left and right and upper left, upper right, lower-left, bottom right amount to the attachment lens district of 8 directions, and described upper and lower is joined successively by 1 piece and above lens and constitutes to each; Described left and right direction is respectively joined successively by lens more than 1 piece and 1 piece and is constituted; Upper left, upper right, lower-left is told by institute, the lower right is joined successively by lens more than 1 piece and 1 piece and constitutes to each, attachment lens is respectively distinguished lens numbers and is no more than 10 pieces at most, described upper and lower, left and right and upper left, upper right, lower-left, lower right to attachment lens relative main lens central horizontal face or vertical plane or main lens center be and be symmetrical arranged or asymmetric setting.That is, the relative main lens central horizontal of attachment lens face (XY plane), vertical plane (XZ plane) in each zone, in the horizontal direction or vertical direction or crisscross being be symmetrical arranged or asymmetric setting.
Described bracket assembly is made of the anodal 3-7 of screw 3-1, upper and lower reinforcing ring 3-2,3-3, cladding plate 3-4, insulation board 3-6 and support, is provided with the negative conducting layer 3-5 that is connected with the LED luminescence chip that places the bracket assembly center between described cladding plate and the insulation board.Described LED luminescence chip quantity can be set to 1-10, is divided into up and down 2 line linearities and arranges or have only upside 1 line linearity to arrange separately.
One, the horizontal "cut-off"line of dipped beam forms basic principle:
As shown in Figure 4, be that example describes theoretically with the light path of monochromatic (single wavelength) line source O-A in the O-A-O1 plane.If the O point is an area source base mid point, the A point is an area source top margin mid point, and O1 is the main lens central point, and O-A places as figure, and the O point is over against main lens central point O1.
1.O the horizontal light O-O1 that point is sent does not have any deviation at above-below direction after the non-spherical surface refraction of main lens, meeting horizontal sheaf 25m the place ahead screen hands over screen in the O11 of screen center point (the HV points of rules).
2.O the light that makes progress that point is sent also can level penetrate the O22 position of directive screen after main lens non-spherical surface first half optional position O2 refraction.O is ordered the downward light that sent after the optional position O3 of main lens non-spherical surface Lower Half refraction, also all can level penetrate, and the O33 position of directive screen, the distance of O22 and O33 is between the transition zone of "cut-off"line.Because main lens above-below direction full-size very limited (this example is 10.2mm) so O22 and O33 distance are equally very limited, is compared with about 300mm interval of laws and regulations requirement, has formed "cut-off"line clearly in theory.
The downward deviation 3.O the light (as: A-A1, A-A2, A-A3) that any point of ordering until summit A beyond the point is sent is bound to behind the main lens deviation, the below of directive "cut-off"line (as: A11, A22, A33), the height that can not surmount "cut-off"line is not so have any influence to the formation of "cut-off"line.
To the light path explanation of monochromatic line light source in center vertical plane, explained the basic principle that "cut-off"line forms by above-mentioned theoretically.
The dispersion phenomenon that wave-length coverage all visible lights in 486nm～656nm interval in that white light comprised that refraction generally takes place for lens produce, this example reduces dispersion phenomenon in order to guarantee as far as possible in the "cut-off"line interval, main lens has carried out reasonable control to the light direction of long wavelength of this scope and minimal wave length light, obvious visible dispersion phenomenon can not occur.
Two, lens explanation
There are one-to-one relationship in lens shape and refractive index, for different encapsulating materials, every kind of material is with respect to also different between the index region of white light, in order to form "cut-off"line and elimination dispersion phenomenon clearly, the non-spherical surface shaped design of lens must be at different materials, according to carrying out respective design between its index region.As between the index region of certain silica gel being: 1.40～1.42; Between the index region of certain resin be: 1.50～1.52; Between the index region of certain glass be: 1.51～1.53.Can select for use between the index region of material and roughly be distributed in 1.4～2.4 scopes.These routine lens are according to 1.51～1.53 designing between the index region of certain glass, its dipped beam is lit a lamp whole illumination stereoeffect as shown in figure 11, it is on the hemisphere face at center that the light that chip sent is radiated at the main lens center after the lens refraction, form light and dark regional hot spot, the area distribution of each hot spot as shown in figure 12, and is corresponding one by one with each area distribution of lens among Fig. 2.
1. the function of main lens: can be formed directly in the hot spot of band level one word "cut-off"line, be used for the design of car light "cut-off"line, also can place optically focused or astigmat, with the width in the horizontal direction of control light shape or the width of vertical direction in main lens the place ahead.
1). this routine cloud data explanation:
To the YZ plane projection, the subpoint of each point on the YZ plane is the coordinate system initial point with the main lens center as shown in Figure 7 with shown in Figure 6 some cloud, the Y direction-10mm～+ 10mm coordinate interval measures a point, 21 points of the widest part every 1mm; The Z direction-6mm～+ 6mm coordinate interval measures a point every 1mm, 13 points of the widest part, each point directions X coordinate values data see the following form:
Because the Building X scale value is about XZ plane left-right symmetry, so only list Y 〉=0 part in the table.In order to guarantee to form "cut-off"line clearly, each point mismachining tolerance scope should be limited in the some cloud: cross each point and prolong Surface Method to ± 0.05mm.
2). the relation of main lens curve form and light shape:
Horizontal direction control:
The horizontal direction width of main lens horizontal cross sectional geometry control light shape, as shown in Figure 8, main lens central horizontal section line O-O inwardly be contracted to the A-A position then light shape width also can narrow thereupon; Otherwise outwards expanding then, light shape also can widen thereupon.The user can adjust curve O-O arbitrarily to satisfy the control to light shape width according to the demand of oneself.Suggested range: with the main lens curve form that this example was provided is the standard lens shape, and O-O inwardly narrows scope and gets 0mm≤a≤2mm, and outwards expansion can be until becoming a horizontal linear.
In this example, when a value is got about 0.5mm, light shape width (〉=0.7lux) by about each 29 the degree narrow to 26 the degree; Otherwise extend out to the B-B position as O-O, when b value was got 0.5mm approximately, light shape width can widen to the pact each too and 32 spend.
Vertical direction control:
The vertical direction width of main lens vertical cross-section shape control light shape, as shown in Figure 9, principle and horizontal direction are roughly the same.
3). the principal element of decision main lens overall dimensions:
For reduce the LED overall dimensions as far as possible, main lens curved surface size is according to present world machine finish situation, the young pathbreaker the curved surface overall dimensions designed to less degree, if can cause being difficult to form "cut-off"line and raising processing cost clearly because of machining accuracy is difficult to reach again.Otherwise curved surface amplifies continuously with the main lens center, and curved surface is big more, and is then low more to requirement on machining accuracy, and easy more formation is "cut-off"line clearly.But then, because the increase of LED shape can make the design size of lamp reflector to increase thereupon, thereby cause the car light overall dimensions to become big, simultaneously because the increase of LED volume, the inhomogeneities that encapsulating material shrinks also can be given prominence to more and be caused the curved surface forming dimensional accuracy out of control, the size of LED overall dimensions can make that on the contrary "cut-off"line is unintelligible, so will be considered control in the reasonable scope according to many-sided combined factors.In reasonable range, (be no more than car light and can hold scope) to amplify and dwindle in theory and can any influence be arranged to light shape hardly.Suggestion LED lens groups (not containing support) whole height is controlled between 15mm～30mm, as shown in figure 10.Main lens curved surface height for example provided herein, amplification range maximum do not surpass 100%.
4). this routine main lens dipped beam simulate effect of lighting a lamp:
As shown in figure 13, each grid is represented 1 degree (down together), and the above illumination range of 0.7 (lux) is in the light shape: each about 29 degree of left and right sides width, about 9 degree in horizontal direction center line below.Actually light a lamp effect as shown in figure 14.
2. attachment lens:
The upward and downward attachment lens:
1). function:
The independent lens individuality of each piece all may be separately formed the hot spot with clear "cut-off"line in the upward and downward attachment lens, and light is towards being respectively gradually up and down, amount of light also respectively up and down both sides progressively successively decrease.Because the light that these lens sent is beaten both sides up and down respectively, so can't be directly used in the "cut-off"line that forms on the 25m screen of dead ahead, can it be controlled on the screen in dead ahead by form such as reflective, overlap the more bright "cut-off"line of the common formation of auxiliary main lens with the "cut-off"line of main lens.
2). shape description:
As shown in Figure 2, upper and lower being joined one after another by 1 piece and above lens formed to each, and two region aids lens can be the symmetric shapes about main lens central horizontal face (XY plane) up and down, can also be asymmetrical shapes, and this example is an asymmetrical shape.Lens piece number can adjust accordingly according to dividing the fineness needs, is each 4～10 pieces in upper and lower two districts than zone of reasonableness, and it is high more to divide thin more camera lens light transmittance, but thin more also high more to lamp reflector design requirement.The design of this example is got upper and lower each 5 pieces, and the above-below direction of "cut-off"line that each independent lens forms is respectively (unit is degree) towards angle: ± 35, ± 50, ± 65, ± 80, ± 90.
3). this example is the attachment lens dipped beam simulate effect of lighting a lamp up and down:
Figure 15 shows that first half attachment lens lighting effect, Figure 16 shows that Lower Half attachment lens lighting effect.
About to attachment lens:
1). function:
About in attachment lens the independent lens individuality of each piece can form the independent hot spot that is no more than main lens central horizontal face, light is respectively towards and arranged on left and right sides, each hot spot intensity of illumination weakens gradually by around the middle mind-set, and upward and downward maximum center is in close spot center position.Because the light that these lens sent is beaten both sides to the left and right respectively, so also can't be directly used in front illumination, need it be controlled on the screen in dead ahead by form such as reflective, the arbitrary region that this part light can reflex to the "cut-off"line below is used for replenishing light intensity.
2). shape description:
As shown in Figure 2, each is joined left and right one after another by lens more than 1 piece and 1 piece and to form, about two region aids lens can be symmetric shape about mistake main lens central vertical face (XZ plane), can also be asymmetrical shape.Lens piece number can adjust accordingly according to the fineness needs, is each 2～10 pieces than zone of reasonableness, and it is high more to divide thin more camera lens light transmittance, but thin equally more design requirement to lamp reflector is also high more.The design of this example is got left and right each 2 pieces, and the left and right directions of "cut-off"line that each independent lens forms is respectively (unit is degree) towards angle: ± 50, ± 90.
3). this routine left and right sides attachment lens dipped beam simulate effect of lighting a lamp:
Figure 17 shows that left side attachment lens lighting effect, Figure 18 shows that right-hand part attachment lens lighting effect.
The bight attachment lens:
1). function:
The independent lens individuality of each piece in the attachment lens of bight, all may be separately formed from and arranged on left and right sides up and down each about 35 degree beginning, the hot spot about about up and down 10 degree respectively, as shown in figure 12.The light that the bight lens are sent is the same with other attachment lenses, also can't be directly used in front illumination, also needs by form such as reflective it to be controlled to the light intensity that is used for replenishing essential regions on the screen in dead ahead.
2). the formation of bight attachment lens:
Upper left, upper right, lower-left, the bottom right of LED are joined one after another by lens more than 1 piece or 1 piece respectively for four jiaos and form, the lens left and right directions in four bights is about main lens central vertical face (XZ plane) symmetry, above-below direction can symmetry also can be for asymmetric, four angles also can be about main lens central shaft (X-axis) one-tenth center symmetry.Lens piece number can adjust accordingly according to the fineness needs, is each 1～10 piece than zone of reasonableness, and the design gets 1 piece.Equally, it is high more to divide thin more camera lens light transmittance, but thin more design requirement to lamp reflector is also high more.
3). this routine bight attachment lens dipped beam simulate effect of lighting a lamp:
Figure 19 shows that upper left corner attachment lens lighting effect, Figure 20 shows that upper right corner attachment lens lighting effect, shown in Figure 21 is lower left corner attachment lens lighting effect, and shown in Figure 22 is lower right corner attachment lens lighting effect.
3. the degeneration of attachment lens:
The main part of this led light source is a main lens, it is the core that forms band in-line "cut-off"line light district, this bright dipping total amount accounts for 47.9% of integral body, though around attachment lens also can be assisted and be formed "cut-off"line light district on every side, but the amount of light of each monomer lens is compared with main lens and is differed greatly, so only play booster action.Along with the led chip technology constantly develops, the light quantity that chip can send also can progressively improve, when the main lens combination of the main lens of 1 piece of LED of independent usefulness or several pieces of LED can be satisfied rules to "cut-off"line zone illumination requirement, the collected light of attachment lens on every side is not used in the auxiliary "cut-off"line that forms and also can, thereby attachment lens can local or all be degenerated and be disappeared, replace with other than simple surface form or hemisphere face, with traditional car light light distributing method the light that comes from this face is rationally handled then, wideer to form, other brighter target area, make design more be tending towards variation, meet the different needs.
Three, distance light explanation:
1. light a lamp: when distance light was lit a lamp, the instant and near light electrode was connected power supply simultaneously, and inside chip is all lighted.
2. this routine distance light is lit a lamp simulate effect as shown in figure 23, and the hot spot when light spot shape and single dipped beam were lighted when distance light was lit a lamp is approximate, has just formed double hot spot, and the hot spot the when hot spot of increase and single dipped beam are lighted is the symmetrical centre near symmetrical with the "cut-off"line.
3. distance light light distributing method brief introduction:
Get final product by of the dark space elimination of suitable optical form the main lens spot center, for example the light with the attachment lens zone reflexes to this dark space by reflective mirror, perhaps the deflection of light collector lens is set, the top hot spot is moved down, overlap with the bottom hot spot etc. in LED the place ahead.If left and right directions light shape is wide, can utilize the place ahead collector lens suitably to converge, perhaps the particular design requirement is proposed directly the led light source lens.
Four, the main error of system:
1. Mould Machining error;
2. actual refractive index and theoretical refractive index error;
3. the moulding error of shrinking;
4. the error in mounting position of lens and support.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a dipped beam has the car headlamp led light source of "cut-off"line, mainly constitute by lens, bracket assembly and LED luminescence chip, it is characterized in that: described lens surface is non-rotating non-spherical surface, described lens by a plurality of differences towards the surface lens that the are non-rotating non-spherical surface set of lenses of forming of joining successively constituted, lens dead ahead lens are main lens, and lens are attachment lens around the main lens.
2. dipped beam according to claim 1 has the car headlamp led light source of "cut-off"line, it is characterized in that: described main lens district is provided with 1 piece of main lens, main lens is non-rotating non-spherical surface, surface configuration is described with a cloud form, when lens material refractive index 1.4～2.4 when interval, each point X, Y, Z three dimension coordinate measurement value scope are on the described some cloud: with the main lens center is the coordinate system initial point, directions X coordinate interval be 0mm～+ 15mm, Y direction coordinate interval is-12mm～+ 12mm; Z direction coordinate interval is-7mm～+ 7mm.
3. dipped beam according to claim 2 has the car headlamp led light source of "cut-off"line, it is characterized in that: described attachment lens is distributed as a plurality of differences towards the zone, comprise that upper and lower, left and right and upper left, upper right, lower-left, bottom right amount to the attachment lens district of 8 directions, described upper and lower is joined successively by 1 piece and above lens and constitutes to each; Described left and right direction is respectively joined successively by lens more than 1 piece and 1 piece and is constituted; Described upper left, upper right, lower-left, lower right are joined successively by lens more than 1 piece and 1 piece and constitute to each, attachment lens is respectively distinguished single lens quantity and is no more than 10 pieces at most, described upper and lower, left and right and upper left, upper right, lower-left, lower right to attachment lens relative main lens central horizontal face or vertical plane be and be symmetrical arranged or asymmetric setting.
4. dipped beam according to claim 1 has the car headlamp led light source of "cut-off"line, it is characterized in that: described bracket assembly is made of upper and lower reinforcing ring, cladding plate, insulation board and support positive pole, is provided with the negative conducting layer that is connected with the LED luminescence chip that places the bracket assembly center between described cladding plate and the insulation board.
5. dipped beam according to claim 1 has the car headlamp led light source of "cut-off"line, it is characterized in that: described LED luminescence chip quantity is 1-10, is divided into up and down 2 line linearities and arranges or have only upside 1 line linearity to arrange separately.
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| CN2010101853836A CN101858550B (en) | 2010-05-28 | 2010-05-28 | LED light source of dipped headlamp of automobile, with cut-off line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101853836A CN101858550B (en) | 2010-05-28 | 2010-05-28 | LED light source of dipped headlamp of automobile, with cut-off line |
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| CN101858550A true CN101858550A (en) | 2010-10-13 |
| CN101858550B CN101858550B (en) | 2012-02-01 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252266A (en) * | 2011-07-02 | 2011-11-23 | 重庆科鹰电气有限公司 | Light-emitting diode (LED) lens of automobile |
| CN102322603A (en) * | 2011-06-02 | 2012-01-18 | 天津方合科技发展有限公司 | Automotive headlight LED (light-emitting) optical component with cut-off line in dipped beam region |
| WO2012162927A1 (en) * | 2011-06-02 | 2012-12-06 | 天津方合科技发展有限公司 | Automobile head light led optical assembly with low beam having cut-off line |
| CN103062698A (en) * | 2013-01-30 | 2013-04-24 | 上海开腾信号设备有限公司 | LED (Light Emitting Diode) lamp with light distribution directed to corresponding regions for ground vehicles and manufacture method of LED lamp |
| CN105371199A (en) * | 2014-09-01 | 2016-03-02 | 现代摩比斯株式会社 | Head lamp for car |
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| CN107036029A (en) * | 2017-05-03 | 2017-08-11 | 中山市富同晟科技有限公司 | A kind of complicated optical system automotive LED headlamp |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080094852A1 (en) * | 2006-10-24 | 2008-04-24 | Valeo Sylvania Llc | High efficiency automotive LED optical system |
| CN201261424Y (en) * | 2008-06-25 | 2009-06-24 | 珠海市和瑞光电科技有限公司 | Power type LED automobile lamp |
| CN101614353A (en) * | 2008-06-23 | 2009-12-30 | 财团法人车辆研究测试中心 | LED light-emitting device and car light |
-
2010
- 2010-05-28 CN CN2010101853836A patent/CN101858550B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080094852A1 (en) * | 2006-10-24 | 2008-04-24 | Valeo Sylvania Llc | High efficiency automotive LED optical system |
| CN101614353A (en) * | 2008-06-23 | 2009-12-30 | 财团法人车辆研究测试中心 | LED light-emitting device and car light |
| CN201261424Y (en) * | 2008-06-25 | 2009-06-24 | 珠海市和瑞光电科技有限公司 | Power type LED automobile lamp |
Cited By (18)
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|---|---|---|---|---|
| CN102322603A (en) * | 2011-06-02 | 2012-01-18 | 天津方合科技发展有限公司 | Automotive headlight LED (light-emitting) optical component with cut-off line in dipped beam region |
| WO2012162927A1 (en) * | 2011-06-02 | 2012-12-06 | 天津方合科技发展有限公司 | Automobile head light led optical assembly with low beam having cut-off line |
| CN102322603B (en) * | 2011-06-02 | 2013-05-29 | 天津方合科技发展有限公司 | Automotive headlight LED (light-emitting) optical component with cut-off line in dipped beam region |
| CN102252266A (en) * | 2011-07-02 | 2011-11-23 | 重庆科鹰电气有限公司 | Light-emitting diode (LED) lens of automobile |
| CN102252266B (en) * | 2011-07-02 | 2013-03-27 | 重庆科鹰电气有限公司 | Light-emitting diode (LED) lens of automobile |
| CN103062698A (en) * | 2013-01-30 | 2013-04-24 | 上海开腾信号设备有限公司 | LED (Light Emitting Diode) lamp with light distribution directed to corresponding regions for ground vehicles and manufacture method of LED lamp |
| CN105371199A (en) * | 2014-09-01 | 2016-03-02 | 现代摩比斯株式会社 | Head lamp for car |
| US10240739B2 (en) | 2015-04-23 | 2019-03-26 | Lg Electronics Inc. | Light emitting module |
| CN106066019A (en) * | 2015-04-23 | 2016-11-02 | Lg电子株式会社 | Light emitting module |
| CN106066019B (en) * | 2015-04-23 | 2020-03-10 | Lg电子株式会社 | Light emitting module |
| CN106949418A (en) * | 2016-01-06 | 2017-07-14 | 比亚迪股份有限公司 | Vehicle dipped headlight group and the vehicle with it |
| CN106949418B (en) * | 2016-01-06 | 2020-11-06 | 比亚迪股份有限公司 | Vehicle passing light group and vehicle with same |
| CN106555971A (en) * | 2016-11-30 | 2017-04-05 | 武汉通畅汽车电子照明有限公司 | The integrated auxiliary lamp module of key light lamp and car headlamp |
| CN107036029A (en) * | 2017-05-03 | 2017-08-11 | 中山市富同晟科技有限公司 | A kind of complicated optical system automotive LED headlamp |
| CN108534078A (en) * | 2018-01-30 | 2018-09-14 | 长春汽富维海拉车灯有限公司 | A kind of difunctional module system of LED array distance-light |
| CN108534078B (en) * | 2018-01-30 | 2020-04-28 | 长春一汽富维海拉车灯有限公司 | LED array far and near light dual-function module system |
| CN112944276A (en) * | 2021-02-24 | 2021-06-11 | 华域视觉科技(上海)有限公司 | Far and near light integrated optical device, automobile lighting device and automobile |
| CN112944276B (en) * | 2021-02-24 | 2021-10-01 | 华域视觉科技(上海)有限公司 | Far and near light integrated optical device, automobile lighting device and automobile |
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