CN103062698B - Ground traffic tools region correspondence points to light distribution type LED lamp and manufacture method thereof - Google Patents
Ground traffic tools region correspondence points to light distribution type LED lamp and manufacture method thereof Download PDFInfo
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- CN103062698B CN103062698B CN201310034834.XA CN201310034834A CN103062698B CN 103062698 B CN103062698 B CN 103062698B CN 201310034834 A CN201310034834 A CN 201310034834A CN 103062698 B CN103062698 B CN 103062698B
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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
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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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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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
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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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A kind of ground traffic tools region correspondence points to light distribution type LED lamp and manufacture method thereof, this LED comprises: LED light source, concentrator, and reflector, the opticpath that this concentrator is arranged on this LED light source converges with a part of light sent by this LED light source, this reflector forms a container cavity and has an opening, this LED light source is arranged in this container cavity, and project away from this opening after the inner surface that other a part of light that this LED light source sends arrives this reflector is reflected, thus the light that this LED light source sends is guided to the key lighting district on road surface via the refraction action of this concentrator and the reflex of this reflector respectively respectively, surround, side, if other high surround and other regions needed.
Description
Technical field
The present invention relates to LED, particularly a kind of region correspondence on ground traffic tools points to light distribution type LED lamp and manufacture method thereof.
Background technology
Headlamp, is also headlight, is installed on the head both sides of the vehicles such as automobile, for night illumination.Illuminating effect due to headlamp directly affects operation and the traffic safety of driving at night, and therefore countries in the world vehicle supervision department defines its lighting criteria mainly with legal form.Along with the development of technology, past that incandescent vacuum lamp is successively eliminated, and the headlamp of present automobile is based on Halogen lamp LED, xenon lamp.
The headlamp such as car headlamp of the vehicles has the light distribution structure of its uniqueness, and the type according to luminescence also can be divided into high beam and dipped headlights.The light that such as high beam sends shoots forward straight, to be formed " distance light " after the reflection of lampshade reflector.The light that dipped headlights sends keeps off the first half of lampshade reflector to shadow shield, its light reflected away be all diffusion down earthward, to be formed " dipped beam ", thus the driver that can not send a car to opposite causes and dazzles the eyes.
The distribution of headlamp to the illumination of dipped beam has very strict requirement, as shown in Figure 1A, according to some photometric standards, when headlamp presents dipped beam pattern, on vertical light distribution screen, the area pellucida below h-h ' line needs to reach certain light intensity, and in order to prevent the requirement dazzle the eyes, the boundary of area pellucida and dark space needs to be limited between h-h ' line and H-H ' line, and will form "cut-off"line.As shown in Figure 1B, according to some other photometric standards, the headlamp of such as car right side, its dipped beam pattern allows direction outwardly to the right to have light beam, and this light beam also can not form dazzle, has an impact to the driver of the car on opposite.
LED, as new type light source, self has the unexistent many advantages of other lighting sources, for example (,) low-voltage, long-life, volume little, lightweight, respond fast, radiationless, pollution-free and resistance to various mal-conditions etc.Therefore be that to make LED headlamp be also a new trend to light source with LED, but existing LED is more difficult reaches the light intensity requirement in the area pellucida in headlamp standard on filament shield, nor the "cut-off"line easily formed clearly, be namely not easy to provide desirable dipped beam.
Be a kind of structural representation of traditional LED headlamp as shown in Figure 2, it comprises ellipsoid refractive body 1, eclipser 2, and lens 3.According to the geometrical property of ellipsoid, there is two focal point F 1 and F2 in it.LED light source is placed in one of them focal point F 1, the light beam that LED light source sends is reflected by ellipsoid refractive body 1 and converges in another one focal point F 2, and the focus of the second focus of ellipsoid lens exactly, according to the character of lens, the refraction of the rays pass through lens that focus is launched, output should be directional light.Around this principle, the shape of change ellipsoid that just can be suitable as requested, object makes the light horizontal proliferation exported from lens, then places eclipser 2 at the focus place of lens, forms the order of light and shade by line to reach.This traditional LED headlamp needs to arrange light trap to realize the distribution of light, and LED light source produces the light of 180 degree of scopes, inevitably, there is the light beam of quite a few to make because of being blocked the light intensity of the light of downward diffusion bright not, and also result in waste.
In addition, the development of following headlamp also more trends towards the development of hommization.One of them direction is exactly at the vehicles as increased side irradiation angle during automobile turning, to improve traffic safety.That is, as automobile in the process of moving, when running into turning, will road ahead be seen clearly before turning.And existing headlamp, have the headlamp of refractive body 1, eclipser 2 described above, its light utilization efficiency is too little, and lighting angle is little, causes the illumination of hot spot left and right angle not too large.And prior art provides two kinds of main solutions.One is on rearview mirror, install side illuminating lamp additional, when steering wheel spins, outputs signal the side illumination lamp ignition that rearview mirror is installed additional, to illuminate curved road surface above.Another is that headlamp can regulate direction automatically, and more specifically, when steering wheel spins, or during climb and fall, output signal makes headlamp rotation direction, so that hot spot is moved to curve ahead road surface.This two schemes has corresponding defect, and the former needs to install side illuminator additional, needs sample direction dish signal, increases the complexity of system.And the latter adopts traditional theory of mechanics, there is mechanical breakdown, and the response time is slow.
Summary of the invention
Main purpose of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, it is applied to the vehicles as on automobile, enough light intensity can be reached to illuminate the road in front, can not dazzle be produced again, thus guarantee effectively and use safely.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, the light that its LED light source sends, corresponding can project the region that the predetermined light type of LED headlamp on vertical light distribution screen requires.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, it take LED illuminator as light source, thus energy-conservation, durable and environmental protection.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, the opticpath of the wherein LED illuminator of LED light source is provided with concentrator, thus improve the effective luminous flux of LED light source, thus the described area pellucida of LED headlamp on filament shield is made to reach satisfactory light intensity.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, a reflector is provided with around wherein said LED light source, distribute with the light that described LED light source is projected on described reflector, prevent light from projecting generation dazzle upward, affect the driver on the vehicles in front.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein said LED light source can comprise multiple LED illuminator, described multiple LED illuminator can be arranged in the array of row or multiple row, compared to the array of traditional LED illuminator, LED illuminator of the present invention can arrange in pairs or groups concentrator and reflector to produce the effect of optically focused, thus the light that LED light source is sent evenly, there is not dark space.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein do not need to provide the light trap required for traditional LED headlamp, thus the larger effect limiting ground performance LED light source, make the region of needs light have higher light intensity.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein said LED light source outwards can be arranged along the direction of the centerline axis parallel with reflector, thus described LED light source can reflector described in ring directive, and by described reflector by the region of light collection to needs, thus enhance the utilization ratio of the light intensity of LED light source, and be vertically arranged on along on an installing plate of ellipsoid refractive body central axis unlike the LED light source in traditional LED headlamp, the light in order to prevent headlamp from sending is caused upwards to project, the light sent downwards from LED light source at the beginning is just made the utilization ratio of light intensity very low by stopping.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, its reflector has the reflective surface of tortoiseshell shape segmentation, thus make light be reflected presumptive area on rear arrival filament shield, to meet the requirement of dipped beam, the design of described tortoiseshell shape reflective surface can be obtained by the analog computation of computer software, such as by determine described LED headlamp vertical light distribution screen on light type require after, according to computer software another mistake to the shape obtaining required reflector, thus described LED headlamp design difficulty of the present invention is reduced and manufacturing process is relatively simple.
Another object of the present invention is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, its structure is simple, and cost reduces, and is applicable to large-scale production and application.
For reaching above object, the invention provides a kind of ground traffic tools region correspondence and point to light distribution type LED lamp, for a key lighting district, surround, side, and the illumination of high surround, one side light distribution requirements, described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is comprised:
One LED light source;
One concentrator, to reflect the some light of described LED light source with the illumination providing described key lighting district; And
One reflector, described reflector comprises illumination echo area, side and the echo area of height illumination on one side, the some light of described LED light source is reflexed to the high surround in surround, described side and described side respectively.
According to a preferred embodiment of the present invention, it is headlamp that described ground traffic tools region correspondence points to light distribution type LED lamp, and the light collection after described concentrator refraction is to the described key lighting district of described vehicles front lower place.
According to a preferred embodiment of the present invention, the light after described concentrator refraction forms "cut-off"line on filament shield.
According to a preferred embodiment of the present invention, the inner surface of described reflector is the reflecting surface of tortoiseshell shape segmentation, with the light filling echo area that correspondence forms illumination echo area, described side, described other height throws light on echo area and other linkings needing to do even light filling are thrown light on.
According to a preferred embodiment of the present invention; described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is also comprised a light transmission outer cover; the light that described LED light source sends passes described light transmission outer cover again via after the refraction action of described concentrator and the reflex of described reflector respectively, and described light transmission outer cover provides protective effect.
According to a preferred embodiment of the present invention, described concentrator is selected from the one intercepted in shape aspheric surface convex lens and vertical bar type Fresnel Lenses.
According to a preferred embodiment of the present invention, described light transmission outer cover is a kind of structure lens of the light quality for improving described LED.
The present invention also provides a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, and it comprises:
One LED light source;
One concentrator, the opticpath that described concentrator is arranged on described LED light source converges with a part of light sent by described LED light source; And
One reflector, described reflector forms a container cavity and has an opening, described LED light source is arranged in described container cavity, and project away from described opening after the inner surface that other a part of light that described LED light source sends arrives described reflector is reflected, thus the light that described LED light source sends is guided to predetermined luminous intensity distribution region via the refraction action of described concentrator and the reflex of described reflector respectively.
According to a preferred embodiment of the present invention; described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is also comprised a light transmission outer cover; the light that described LED light source sends respectively via after the refraction action of described concentrator and the reflex of described reflector again through described light transmission outer cover, thus described light transmission outer cover protection and improve light that described LED light source sends further and be assigned to described predetermined luminous intensity distribution region.
According to a preferred embodiment of the present invention, described ground traffic tools region correspondence points to the lower beam headlamp that light distribution type LED lamp is the vehicles.
According to a preferred embodiment of the present invention, the correspondence of described reflector is pointed to luminous intensity distribution echo area and is carried out designing the light after making reflection and forming via the light of the refraction action of described concentrator the light type meeting described predetermined light distribution requirements, as formed the light type meeting the light distribution requirements of high beam headlamp and other lower beam headlamps according to predetermined light distribution requirements.
According to a preferred embodiment of the present invention, described LED light source comprises one or more LED illuminator, and wherein said multiple LED illuminator is arranged in an array.
According to a preferred embodiment of the present invention, the inner surface of described reflector is tortoiseshell shape dividing surface, with the light filling echo area that correspondence forms illumination echo area, described side, described other height throws light on echo area and other linkings needing to do even light filling are thrown light on.
According to a preferred embodiment of the present invention, described LED light source along the direction of the centerline axis parallel with described reflector and described opening towards described reflector arrange.
According to a preferred embodiment of the present invention, described ground traffic tools region correspondence sensing light distribution type LED lamp also comprises at least one installation component, to connect described LED light source and described concentrator.
The present invention also provides a kind of ground traffic tools region correspondence to point to the manufacture method of light distribution type LED lamp, and it comprises the steps:
A () is by the Part I light refraction of an a LED light source extremely ground key lighting district;
(b) by the Part II light reflection of described LED light source to surround, side; And
C (), by the Part III light reflection of described LED light source to high surround, one side, described Zhu Zhao district, the high surround in described Ce Zhao district and described side forms lower beam headlamp light type.
According to a preferred embodiment of the present invention, in the above-mentioned methods, the light source of described LED launches forward described Part I light, with via reflecting after a concentrator to described key lighting district, and described LED light source launch towards periphery described Part II light and described Part III light with respectively by a reflector reflects to the high surround in surround, described side and described side.
According to a preferred embodiment of the present invention, in the above-mentioned methods, described reflector comprises illumination echo area, side and the echo area of height illumination on one side, with respectively by described second of described LED light source and Part III light reflection to the high surround in surround, described side and described side, described reflector also comprises light filling echo area, with by the Part IV light reflection of described LED light source to the linking surround needing even light filling.
According to a preferred embodiment of the present invention, in the above-mentioned methods, the described key lighting district that the structure determining simulating described LED headlamp according to computer software will be formed, the predetermined light type of surround, described side, described Pang Gao district and described light filling echo area, thus draw the illumination echo area, side of described reflector, described other high illumination echo area and the shape and size of described light filling echo area and the shape and size of described concentrator.
According to a preferred embodiment of the present invention, said method also comprises step: arrange a light transmission outer cover, and the light that described LED light source is sent passes described light transmission outer cover again via after the refraction action of described concentrator and the reflex of described reflector respectively.
According to a preferred embodiment of the present invention, said method also comprises step: multiple LED illuminator is arranged in an array, to be combined into described LED light source.
According to a preferred embodiment of the present invention, in the above-mentioned methods, described concentrator is arranged on the position described LED light source to optically focused effect, makes the light after described concentrator refraction be able on filament shield, form obvious "cut-off"line.
According to a preferred embodiment of the present invention, in the above-mentioned methods, described concentrator is selected from the one intercepted in shape aspheric surface convex lens and vertical bar type Fresnel Lenses.
According to a preferred embodiment of the present invention, in the above-mentioned methods, the illumination echo area, described side of described reflector, described other high illumination echo area and described light filling echo area form the tortoiseshell shape segmentation inner surface of described reflector.
Accompanying drawing explanation
Figure 1A to Fig. 1 F is the schematic diagram of several light distribution requirements of headlamp on filament shield.
Fig. 2 is a kind of structural representation of traditional LED headlamp.
Fig. 3 is the structural representation of ground traffic tools region correspondence sensing light distribution type LED lamp according to a preferred embodiment of the present invention.
Fig. 4 is the sectional view according to above preferred embodiment of the present invention.
Fig. 5 is the schematic appearance according to above preferred embodiment of the present invention.
Fig. 6 is the corresponding structural representation pointing to the LED light emitting source of light distribution type LED lamp in ground traffic tools region according to the abovementioned embodiments of the present invention.
Fig. 7 is the light type formed on filament shield according to the ground traffic tools region correspondence sensing light distribution type LED lamp of above preferred embodiment of the present invention.
Detailed description of the invention
The structural representation that ground traffic tools region according to an embodiment of the invention correspondence points to light distribution type LED lamp as shown in Figures 3 to 6, described ground traffic tools region correspondence points to the illumination of light distribution type LED lamp on the vehicles, such as be applied to car headlamp, to provide enough strong illumination to illuminate the road in front, the driver being unlikely to again to sail front the vehicle come produces the effect of dazzling the eyes, thus is used safely and effectively.
Particularly, described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is comprised LED light source 10, reflector 20, concentrator 30, and a light transmission outer cover 40.Described LED light source 10 can reach the requirement of headlamp for distance light, so directly can be made into high beam headlamp.And in the present invention, the main formation that dipped beam LED headlamp is discussed.LED headlamp of the present invention also comprises for converging the described reflector 20 of light and described concentrator 30, described reflector 20 is arranged on described LED light source 10 around, described concentrator 30 is arranged on the opticpath of described LED light source 10, thus a part of light of described LED light source is reflected after the light that described LED light source 10 sends arrives described reflector 20, another part light is converged through after described concentrator 30, and these light projects to road surface through most light after described light transmission outer cover 30, thus prevent from light from upwards projecting forming dazzle and affect the driver of front vehicles.
Described LED light source 10 comprises one or more LED illuminator 11, the opticpath of each described LED illuminator 11 can be provided with the collector lens 31 of multiple different curves of corresponding concentrator 30, that is, described concentrator 30 can be made up of multiple described collector lens 31 playing optically focused effect, described collector lens is as convex lens, Fresnel Lenses, thus the light that every described LED illuminator 11 sends projects away after described concentrator 30 radial direction converges again, thus improve light efficiency, the illumination arriving presumptive area has higher luminous flux.It is worth mentioning that described concentrator 20 also can be a monoblock collector lens.More specifically, described concentrator 30 is that the light in order to the described LED illuminator of described LED light source 10 be sent is able to form obvious "cut-off"line on the filament shield of photometric standards, described Fresnel Lenses can be vertical bar type Fresnel Lenses, or intercepts shape aspheric surface convex lens.That is, in order to reach the requirement forming obvious "cut-off"line, when Fresnel Lenses is used as concentrator, can not be traditional circular planar disk-like, because round hot spot can be formed on filament shield, being difficult to meet the requirements.Convex lens, neither the spheric of single curvature when being applied as described concentrator 30, but the aspheric surface formed according to the requirement of the light type of the "cut-off"line reached and its border is multiple light projector cut-off section combines section combinate form convex lens formed.
Described concentrator 30 is positioned on suitable position, corresponding described LED illuminator 11 front, and its size and dimension can be arranged as required, to reach maximum spotlight effect, and can form light and shade cut-off effect, and obvious light area.In a concrete example, described concentrator 30 is also provided with at least one installation component 32, thus makes described concentrator 30 be arranged on corresponding suitable location on the opticpath of the described LED illuminator 11 of described LED light source 10 by least one installation component 32 described.It is worth mentioning that, the effect of described concentrator 30 is illuminations of the main region required for formation, and forms obvious "cut-off"line, can set forth further in exposure below.
The described LED illuminator 11 of described LED light source 10 is arranged in the container cavity 21 defined by described reflector 20, and the light that described LED illuminator 11 sends can converge by described reflector 20 together with described concentrator 30.Light after described reflector 20 reflects and then projected the direction of needs after converging through the light of described concentrator 30, more specifically, the inner surface of described reflector 20 is reflective surfaces of the segmentation of tortoiseshell shape, described reflector 20 forms an opening 22, and the light after the internal surface reflection of described reflector 20 outwards projects from described opening 22.
In addition, because described reflector 20 is in fact to be drawn by the photoconduction that the described LED illuminator 11 of described LED light source 10 sends to each corresponding field of illumination as surround, side, other high surround and evenly light filling surround projection, thus the light intensity of primary illumination zone below the h-h ' line of described LED light source 10 on the filament shield of photometric standards is also further enhanced and the improvement of the uniformity, more to meet the requirements.And in the prior art, as shown in Figure 2, in order to obtain desirable dipped beam and form "cut-off"line on filament shield, it is provided with eclipser 2 and also effectively stops that h-h ' line in key lighting district is with the light of upper part with the light and shade of realizing ideal cut-off, thus the light making light source send creates very most of waste, and the light that described LED light source sends in the present invention obtains effective utilization.
The design of the reflective surface of described reflector 20 tortoiseshell shape segmentation can be undertaken by computer software, more specifically, can input the requirement of the light type shown in Figure 1A to Fig. 1 F that will reach in computer, then computer software can require shape and the size of the reflective surface calculating the segmentation of described tortoiseshell shape according to this.
Be in the photometric standards of some headlamps as shown in Figure 1A to 1F, in figure ia, the light that headlamp sends needs on vertical light distribution screen, and the area pellucida below h-h ' line needs to reach certain light intensity.Can reach above-mentioned requirements completely according to LED light source of the present invention, in order to prevent the requirement dazzle the eyes better, the boundary of area pellucida and dark space needs to be limited between h-h ' line and H-H ' line, and will form "cut-off"line.And in Figure 1B, the light of headlamp can have diagonal beam to both sides.More specifically, the right side headlamp of such as automobile allows there is light beam to upper right side, and left side headlamp allows there is light beam to upper left side.Fig. 1 C to Fig. 1 F is the light type of other light distribution requirements.Certainly, these light distribution requirements just as an example, can also have other concrete light distribution requirements in actual practicality.
Namely the design of the reflective surface of the tortoiseshell shape segmentation of described reflector 20 is to meet above-mentioned light distribution requirements.More specifically, as an example, point to light distribution type LED lamp to make described ground traffic tools region correspondence and reach light type as shown in Figure 1B, according to this embodiment of the invention, the light that described LED light source 10 sends is refracted to filament shield III district after described concentrator 30, for the illumination towards road surface.That is, described concentrator 30 mainly distributes the light in III district of key lighting district, and defines "cut-off"line.Described reflector 20 is also for making the light of described LED headlamp project downward as much as possible.But the light of the described reflector 20 of arrival that the reflective surface that as shown in Figure 3, the tortoiseshell shape of described reflector 20 is split can make described LED light source 10 send projects I district and II district on filament shield.That is, in this exemplary embodiment, I district and II district are described reflector 20 reverberation districts, and III district is the refract light district of described concentrator 30.That is, described reflector 20 of the present invention and described concentrator 30 complete the distribution of the light of presumptive area, thus define regional orientation light distribution type LED headlamp of the present invention.
In other words, the high surround I in side on the corresponding road surface in described filament shield I district and II district, and surround, side II.Key lighting district III on corresponding road surface, described filament shield III district.Like this, correspondence sensing light distribution type LED lamp in ground traffic tools region of the present invention provides and invests the high surround I in described side respectively, the light of surround, side II and key lighting district III.The high surround I in side on described road surface for illuminating the eminence object on side, road surface, as seeing guideboard and sagging branch etc. clearly.Described key lighting district III is for illuminating the road surface of vehicles front lower place, and described side surround II is for illuminating the road surface of inclined lateral direction before the vehicles.Correspondingly, described reflector 20 is formed other high illumination echo area 20A and illumination echo area, side 20B, for respectively the light of described LED light source being reflexed to the corresponding high surround I in described side, and described side surround II.
It is worth mentioning that, the situation shown in figure is only not limited to the present invention as an example, and the inner surface of reflector 20 of the present invention also can manufacture the light formation light type as shown in Figure 1A that described LED headlamp is sent.In actual practicality, inventive concept of the present invention goes for revising according to the requirement of concrete filament shield.And for reaching some predetermined light type, the structure of described reflector 20 can have multiple.And the region that light after described reflector 20 reflects and the light after described concentrator 30 reflects project respectively is not be separated completely, can certainly have overlap.Such as, light that is, after described reflector 20 reflects also has a small amount of some light and projects above-mentioned III district of key lighting district.
It will be further appreciated that, the reflective surface of the tortoiseshell shape segmentation of described reflector 20 is also provided with the light filling echo area 20C of the linking illumination that other need to do even light filling.That is, in order to the high surround I in above-mentioned side, and the even linking between surround, side II and III district of key lighting district, light filling echo area 20C on described reflector 20 makes above-mentioned three surrounds form a complete hot spot, is the light type that the LED headlamp in the present embodiment is formed on filament shield as shown in Figure 7.
In the present invention, the inner surface of described reflector 20 is not smooth surface, and it is tortoiseshell shape in pre-position, for arriving the light reflection of inner surface of described reflector 20 to required region.
It is worth mentioning that described LED light source 10 outwards can be arranged along the direction of the centerline axis parallel with described reflector 20, thus described LED light source can reflector 20 described in ring directive, and by described reflector 20 by the region of light collection to needs, thus enhance the utilization ratio of the light intensity of described LED light source 10, and be vertically arranged on along on an installing plate of ellipsoid refractive body central axis unlike the LED light source in existing LED headlamp, the light in order to prevent headlamp from sending is caused upwards to project, the light sent downwards from LED light source at the beginning just needs to be stopped, as shown in Figure 2.That is, in the present invention, the multiple described LED illuminator 10 of described LED light source 10 is radially arranged towards the opening 22 of described reflector 20, instead of the mounting means in the traditional headlamp shown in Fig. 2, this makes the light of 1/3rd that approximately only has in this traditional headlamp S region shown in the figure be used to project field of illumination, thus causes great waste.So ground traffic tools region of the present invention correspondence points to light distribution type LED lamp only needs less power, just can meet light distribution requirements completely.
In addition, also it is worth mentioning that, just because of ground traffic tools region of the present invention correspondence points to the efficient light-configuration mode of light distribution type LED lamp, it can reach the illumination of the wider angle in left and right.That is, the predetermined projected area that ground traffic tools region of the present invention correspondence points to the light of light distribution type LED lamp can extend both sides to the left and right further, thus make hot spot have wider ductility on direction, the left and right sides, shine to provide more wide-angle side.Such as in more existing light distribution requirements, light left and right angle is at 9 degree to about 20 degree, and ground traffic tools region of the present invention correspondence sensing light distribution type LED lamp can provide bright enough more wide-angle illumination.Thus be arranged on the vehicles as after on automobile, before automobile turning, the light of correspondence sensing light distribution type LED lamp in ground traffic tools region of the present invention will be irradiated to the road surface of previous turns, and like this before motor turning, driver just can know the situation of road surface ahead in advance.And do not need in prior art, headlamp to be rotated with the rotation of steering wheel.Installation side illuminating lamp on rearview mirror is not needed yet.
Described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is also comprised a light transmission outer cover 40; described light transmission outer cover 40 can be water white; reach predetermined luminous intensity distribution district to allow the light of described LED light source after described reflector 20 reflects and described concentrator 30 reflects to pass, and described light transmission outer cover 40 plays the effect of protection optical element.
In addition, it is worth mentioning that, when the LED illuminator 11 of described LED light source 10 uses white LED luminary, the precipitation of colored photosphere can be formed after the refraction action of described concentrator 30, therefore, as an example, described light transmission outer cover can overflow situation and is designed to suitably with yellow light component by the blue light different in refractive light paths according to various white LED luminary, thus neutralize the color of certain component, to improve the light quality that described ground traffic tools region correspondence points to light distribution type LED lamp.
As mentioned above, light sends from each LED illuminator 11 of described LED light source 10, and in the scattering of space multistory angular direction, from described opening 22 projected outward after the light directly sent towards the described opening 22 of described reflector 20 is first refracted through described concentrator 30, and the inner surface of described reflector 20 can be reached towards the light of surrounding, and project again after the inner surface of described reflector 20 is reflected to described opening 22, and pass described light transmission outer cover 40 again through described a part of light of concentrator 30 refraction and another part light after the internal surface reflection of described reflector 20, thus the light that described LED headlamp is finally sent satisfactory luminous intensity distribution light type of rear formation on arrival filament shield, the such as light type shown in Figure 1A to Fig. 1 F.It is worth mentioning that, this structure of the present invention, by the shape and size of the described reflector 20 of adjustment, also can be used for being made into the high beam of LED headlamp.
In addition, present invention provides the manufacture method that a kind of ground traffic tools region correspondence points to light distribution type LED lamp, the method comprising the steps of: at least one LED illuminator 11 is formed a LED light source 10; Then on the opticpath of described LED light source 10, a concentrator 30 is provided with, with the light collection at least partially described LED illuminator 11 sent; Then according to the simulation of computer software, shape and the size of a reflector 20 of described LED headlamp is matched according to a predetermined photometric standards, described reflector 20 is arranged on the surrounding of described LED light source 10 and forms an opening 22 and outwards project for the light of described LED light source, thus the light that the described LED illuminator of described LED light source 10 sends can form the light meeting described predetermined photometric standards respectively through after the refraction action of described concentrator 30 and the reflex of described reflector 20.
One skilled in the art will understand that the embodiments of the invention shown in foregoing description and accompanying drawing only limit the present invention as an example and not.
As can be seen here, the object of the present invention is complete and be effectively achieved.Function of the present invention and structural principle are shown in an embodiment and are illustrated, do not deviating under described principle, embodiment can do any amendment.So, present invention comprises all variant embodiment based on claim spirit and right.
Claims (25)
1. ground traffic tools region correspondence points to a light distribution type LED lamp, for a key lighting district, surround, side, and the illumination of high surround, one side light distribution requirements, it is characterized in that, described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is comprised:
One LED light source;
One concentrator, with by a part of light refraction of described LED light source to provide the illumination in described key lighting district; And
One reflector, described reflector forms a container cavity and has an opening, described LED light source is arranged on described reflector in described container cavity and comprises illumination echo area, side and the echo area of height illumination on one side, with respectively by another part light reflection of described LED light source to the high surround in surround, described side and described side, wherein said LED obtains according to following method: the described key lighting district that the structure determining simulating described LED according to computer software will be formed, the predetermined light type meeting car headlamp luminous intensity distribution performance standard of the high surround in surround, described side and described side, thus draw the illumination echo area, side of described reflector, and the described other high shape and size of echo area and the shape and size of described concentrator of throwing light on, wherein being used for the structure of projecting direction of the light adjusting described LED light source is made up of described concentrator and described reflector, to realize not needing light barrier to manufacture described LED.
2. ground traffic tools region as claimed in claim 1 correspondence points to light distribution type LED lamp, it is characterized in that, it is headlamp that described ground traffic tools region correspondence points to light distribution type LED lamp, and the light collection after described concentrator refraction is to the described key lighting district of described vehicles front lower place.
3. ground traffic tools region as claimed in claim 1 correspondence points to light distribution type LED lamp, it is characterized in that, the light after described concentrator refraction forms "cut-off"line on filament shield.
4. ground traffic tools region as claimed in claim 1 correspondence points to light distribution type LED lamp, it is characterized in that, the inner surface of described reflector is the reflecting surface of tortoiseshell shape segmentation, with the light filling echo area that correspondence forms illumination echo area, described side, described other height throws light on echo area and other linkings needing to do even light filling are thrown light on.
5. ground traffic tools region as claimed in claim 4 correspondence points to light distribution type LED lamp; it is characterized in that; also comprise a light transmission outer cover; the light that described LED light source sends passes described light transmission outer cover again via after the refraction action of described concentrator and the reflex of described reflector respectively, and described light transmission outer cover provides protective effect.
6., as the ground traffic tools region correspondence as described in arbitrary in claim 1 to 5 points to light distribution type LED lamp, it is characterized in that, described concentrator is selected from the one intercepted in shape aspheric surface convex lens and vertical bar type Fresnel Lenses.
7. ground traffic tools region as claimed in claim 5 correspondence points to light distribution type LED lamp, and it is characterized in that, described light transmission outer cover is a kind of structure lens of the light quality for improving described LED.
8. ground traffic tools region correspondence points to a light distribution type LED lamp, it is characterized in that, described ground traffic tools region correspondence points to the headlamp that light distribution type LED lamp is the vehicles, and it comprises:
One LED light source;
One concentrator, the opticpath that described concentrator is arranged on described LED light source has the position of optically focused effect to described LED light source, converge with a part of light sent by described LED light source; And
One reflector, described reflector forms a container cavity and has an opening, described LED light source is arranged in described container cavity, and project away from described opening after the inner surface that other a part of light that described LED light source sends arrives described reflector is reflected, thus the light that described LED light source sends is guided to predetermined luminous intensity distribution region via the refraction action of described concentrator and the reflex of described reflector respectively, wherein via in the described other a part of light after the internal surface reflection of described reflector at least some light with not parallel via the described a part of light after the refraction action of described concentrator, wherein being used for the structure of projecting direction of the light adjusting described LED light source is made up of described concentrator and described reflector, to realize not needing light barrier to manufacture described LED.
9. ground traffic tools region as claimed in claim 8 correspondence points to light distribution type LED lamp; it is characterized in that; also comprise a light transmission outer cover; the light that described LED light source sends respectively via after the refraction action of described concentrator and the reflex of described reflector again through described light transmission outer cover, thus described light transmission outer cover protection and improve light that described LED light source sends further and be assigned to described predetermined luminous intensity distribution region.
10. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 8 or 9, it is characterized in that, described ground traffic tools region correspondence points to the lower beam headlamp that light distribution type LED lamp is the vehicles.
11. ground traffic tools region as claimed in claim 9 correspondences point to light distribution type LED lamp, it is characterized in that, the correspondence of described reflector points to the light type carrying out according to the light distribution requirements of predetermined high beam headlamp designing the light after making reflection and forming the light distribution requirements meeting described high beam headlamp via the light of the refraction action of described concentrator in luminous intensity distribution echo area.
12. ground traffic tools region as claimed in claim 9 correspondences point to light distribution type LED lamp, it is characterized in that, the correspondence of described reflector is pointed to luminous intensity distribution echo area and is carried out designing the light after making reflection and forming via the light of the refraction action of described concentrator the light type meeting described predetermined light distribution requirements according to predetermined light distribution requirements.
13. as described in claim 8,9,11 or 12 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, described LED light source comprises one or more LED illuminator, and wherein said multiple LED illuminator is arranged in an array.
14. ground traffic tools region as claimed in claim 13 correspondences point to light distribution type LED lamp, and it is characterized in that, described concentrator is selected from the one intercepted in shape aspheric surface convex lens and vertical bar type Fresnel Lenses.
15. ground traffic tools region as claimed in claim 10 correspondences point to light distribution type LED lamp, it is characterized in that, the inner surface of described reflector is tortoiseshell shape dividing surface, with the light filling echo area that correspondence forms illumination echo area, side, other height throws light on echo area and other linkings needing to do even light filling are thrown light on.
16. ground traffic tools regions as claimed in claim 8 correspondences point to light distribution type LED lamp, it is characterized in that, described LED light source along the direction of the centerline axis parallel with described reflector and described opening towards described reflector arrange.
17. ground traffic tools region as claimed in claim 8 correspondences point to light distribution type LED lamp, it is characterized in that, also comprise at least one installation component, to connect described LED light source and described concentrator.
18. 1 kinds of ground traffic tools region correspondences point to the manufacture method of light distribution type LED lamp, it is characterized in that, comprise the steps:
A () is by the Part I light refraction of an a LED light source extremely ground key lighting district;
(b) by the Part II light reflection of described LED light source to surround, side; And
C () is by the Part III light reflection of described LED light source high surround extremely on one side, described key lighting district, the high surround in surround, described side and described side composition lower beam headlamp light type, the light source of described LED launches forward described Part I light, with via reflecting to described key lighting district after a concentrator, and described LED light source launch towards periphery described Part II light and described Part III light with respectively by the illumination echo area, side of a reflector and high illumination echo area reflection on one side to the high surround in surround, described side and described side, wherein said LED obtains according to following method: the described key lighting district that the structure determining simulating described LED according to computer software will be formed, the predetermined light type of the high surround in surround, described side and described side, thus draw the illumination echo area, side of described reflector, and the described other high shape and size of echo area and the shape and size of described concentrator of throwing light on, wherein being used for the structure of projecting direction of the light adjusting described LED light source is made up of described concentrator and described reflector, to realize not needing light barrier to manufacture described LED.
19. methods as claimed in claim 18, it is characterized in that, described reflector also comprises light filling echo area, with by the Part IV light reflection of described LED light source to the linking surround needing even light filling.
20. methods as claimed in claim 19, it is characterized in that, simulate the structure of described LED headlamp according to computer software and determine the predetermined light type of the described light filling echo area that will be formed, thus drawing the shape and size of the described light filling echo area of described reflector.
21. as the method as described in arbitrary in claim 18 to 20, it is characterized in that, also comprise step: arrange a light transmission outer cover, the light that described LED light source is sent passes described light transmission outer cover again via after the refraction action of described concentrator and the reflex of described reflector respectively.
22. methods as claimed in claim 21, is characterized in that, also comprise step: multiple LED illuminator is arranged in an array, to be combined into described LED light source.
23. methods as claimed in claim 22, is characterized in that, described concentrator is arranged on the position described LED light source to optically focused effect, make the light after described concentrator refraction be able on filament shield, form obvious "cut-off"line.
24. methods as claimed in claim 23, is characterized in that, described concentrator is selected from the one intercepted in shape aspheric surface convex lens and vertical bar type Fresnel Lenses.
25. methods as claimed in claim 19, is characterized in that, the illumination echo area, described side of described reflector, described other high illumination echo area and described light filling echo area form the tortoiseshell shape segmentation inner surface of described reflector.
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| CN201510482929.7A CN105042469B (en) | 2013-01-30 | 2013-01-30 | Ground traffic tools region, which corresponds to, is directed toward light distribution type LED lamp and its manufacturing method |
| CN201310034834.XA CN103062698B (en) | 2013-01-30 | 2013-01-30 | Ground traffic tools region correspondence points to light distribution type LED lamp and manufacture method thereof |
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| CN201310034834.XA CN103062698B (en) | 2013-01-30 | 2013-01-30 | Ground traffic tools region correspondence points to light distribution type LED lamp and manufacture method thereof |
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| CN105042469A (en) * | 2013-01-30 | 2015-11-11 | 上海开腾信号设备有限公司 | Ground transportation vehicle region corresponding orienting light-distribution light emitting diode (LED) lamp and production method thereof |
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| CN103453419A (en) * | 2013-07-22 | 2013-12-18 | 南通大学 | Automobile low-beam light capable of forming vivid cut-off lines |
| CN104534378B (en) * | 2014-07-21 | 2017-07-25 | 上海开腾信号设备有限公司 | Ground traffic toolses region correspondence points to light distribution type LED lamp |
| DE102015011623A1 (en) * | 2015-09-07 | 2017-03-09 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Headlight device of a vehicle |
| JP6705192B2 (en) * | 2016-02-04 | 2020-06-03 | 市光工業株式会社 | Vehicle lighting |
| KR101830663B1 (en) * | 2016-07-06 | 2018-02-21 | 엘지전자 주식회사 | Vehicle lamp and control metohd thereof |
| JP6712204B2 (en) * | 2016-09-02 | 2020-06-17 | 株式会社小糸製作所 | Vehicle lighting |
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| CN105042469A (en) * | 2013-01-30 | 2015-11-11 | 上海开腾信号设备有限公司 | Ground transportation vehicle region corresponding orienting light-distribution light emitting diode (LED) lamp and production method thereof |
| CN105042469B (en) * | 2013-01-30 | 2018-08-28 | 上海开腾信号设备有限公司 | Ground traffic tools region, which corresponds to, is directed toward light distribution type LED lamp and its manufacturing method |
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| CN105042469A (en) | 2015-11-11 |
| CN103062698A (en) | 2013-04-24 |
| CN105042469B (en) | 2018-08-28 |
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Address after: 201314 room 108-24, No. 725, Nanliu highway, Xuanqiao Town, Pudong New Area, Shanghai Patentee after: Shanghai Kaiteng Signal Equipment Co.,Ltd. Address before: 201314 room 108-24, No. 725, Nanliu highway, Xuanqiao Town, Pudong New Area, Shanghai Patentee before: Shanghai Cata Signal Co.,Ltd. |