CN204648055U - Ground traffic tools region correspondence points to light distribution type LED lamp - Google Patents
Ground traffic tools region correspondence points to light distribution type LED lamp Download PDFInfo
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- CN204648055U CN204648055U CN201420404019.8U CN201420404019U CN204648055U CN 204648055 U CN204648055 U CN 204648055U CN 201420404019 U CN201420404019 U CN 201420404019U CN 204648055 U CN204648055 U CN 204648055U
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Abstract
Disclosed in the utility model, a kind of ground traffic tools region correspondence points to light distribution type LED lamp, comprising: LED light source, light distribution device, reflector, light shield; Light distribution device is positioned on the path of the some light of described LED light source, some light is through light distribution device and the illumination be refracted away to provide key lighting district, and light distribution device is also in key lighting district and dark space, right side, directly form light and shade dead line clearly between key lighting district and surround, side; Reflector is arranged on the periphery of LED light source and light distribution device, and respectively the some light of described LED light source to be reflexed to surround, side, other high surround, other need to do even light filling and be connected surround; Reflector also directly forms oblique line at 45 ° on horizontal alignment and forms 15 ° of oblique lines on horizontal alignment to horizontal vertical apart from the broken line of 25cm steering horizontal or reflective surface through rotating; Part V light-shielding beyond light distribution device and reflector cornerite falls by light shield, eliminates light leak.
Description
Technical field
The utility model relates to LED, and particularly a kind of region correspondence on ground traffic tools points to light distribution type LED lamp.
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 needs to fall the first half of lampshade reflector with shadow shield gear, and its light reflected away is all spill directive ground towards lower berth, and 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, for the dipped headlights of the right rule driving vehicle, as shown in Figure 1A to Figure 1B and table 1 and table 2, according to some photometric standards (such as ECE R112), when headlamp presents dipped beam pattern, the vertical light distribution being 7920mm at width shields, area pellucida below h-h ' line needs to arrive certain light intensity, be dark space above the Hh line of center line V-V ' left side, in figure, B50L is vehicle driver's eye position of on opposing lane 50 meters, light intensity requirement is at below 650cd, the too high generation of light intensity is avoided to dazzle the eyes.Be primary illumination zone below the Hh ' line of center line V-V ' left side.The 15 ° of oblique line HH in right side
3, or 45 ° of oblique line HH
1broken line HH to horizontal vertical apart from 25cm steering horizontal
1→ H
1h
2→ H
2h
4top be dark space, below is other high surround and key lighting district.Other high surround, right side provides right side road illumination for driver and road sign throws light on, and the largest light intensity simultaneously setting again BR point is no more than 1750cd requirement, avoids the pedestrian near vehicle to produce and dazzles the eyes the traffic accidents caused.75L and 50L is that on opposing lane, the ground location largest light intensity of 75 meters and 50 meters is no more than 10600cd, 13200cd, avoids light intensity too high ground reflections affect oncoming drivers traffic safety.75R, 50R are 75 meters and 50 meters of right ground key lightings on lane for driver, light intensity minimum of a value 10100cd.50V is driver dead ahead 50 meter face key lighting, light intensity minimum of a value 5100cd.25L, 25R are the 25 meters of territory lightings of driver's left and right sides, light intensity minimum of a value 1700cd.ZoneI is ground key lighting within driver 25 meters, and light intensity maximum is no more than the 50R test point of 2 times, prevents closely ground light intensity too high and light intensity is low at a distance.ZoneIV is key lighting district, driver 25 meters to 50 meters scope ground.ZoneII is "cut-off"line and key lighting district.ZoneIII is dark space above "cut-off"line, and in all test point regions, light intensity is no more than 625cd, in order to avoid cause opposite vehicle and pedestrian to produce dazzle the eyes the potential safety hazard caused, needs certain illumination simultaneously, therefore must meet the minimum of a value requirement of Fig. 1 C.
The luminous intensity distribution table of table 1 headlamp right travel vehicle on filament shield
The luminous intensity distribution table of table 2 headlamp right travel vehicle on filament shield
Fig. 1 C to Fig. 1 F is other optical requirement standard light type, such as symmetrical headlamp and front fog lamp of ground traffic tools area illumination, other high illuminating vertical light type headlamp, 45 oblique lines to horizontal line light type headlamp, the high beam of center optically focused.
LED is as new type light source, self there are 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-condition, and LED light emission direction is unifaciality (conventional light source is all 360 ° of volume), more be conducive to the Collection utilization of light, improve the advantages such as light utilization efficiency.Therefore be that to make LED headlamp be a new development 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, and most of white light LED lighting device easily produces blue light spillover when adopting optical lens luminous intensity distribution usually, be namely not easy to provide desirable LED low-beam light illumination.
Be a kind of structural representation of traditional LED headlamp as shown in Figure 2, it comprises ellipsoid refractive body 10, eclipser 20 and lens 30, and according to the geometrical property of ellipsoid refractive body 10, it exists two focal point F 1 and F2.LED light source 40 is placed in one of them focal point F 1, the light beam that LED light source 40 sends is reflected by ellipsoid refractive body 10 and converges in another one focal point F 2, and the near focal point of the second focal point F 2 of ellipsoid refractive body 10 lens 30 exactly, according to the character of lens 30, the refraction of the rays pass through lens 30 that focal point F 2 is launched, output should be directional light.Around this principle, the shape of change ellipsoid refractive body 10 that just can be suitable as requested, or the shape of lens 30, object makes from lens 30 light horizontal proliferation out, then place a block-shaped eclipser 20 at the focus place of lens 30, thus reach in the mode of ray cast and to form oblique line at 45 ° on horizontal alignment on the right side of vertical point of optical screen to horizontal vertical apart from the object of the broken line of 25cm steering horizontal and the horizontal "cut-off"line in left side on vertical point optical screen.This traditional LED headlamp needs to arrange shape eclipser 20 to control the injection region allocation of light, and LED light source 40 produces the light of 180 degree of scopes, inevitably, have the light beam of quite a few because be blocked screen 20 block and cause waste, and also the light intensity of the diffused light of enable effective directive vehicle front lower place is relatively inadequate.In addition because focal point F 2 is longer with the distance of lens 30, cause lens 30 thickness thicker, injection mo(u)lding difficulty, and light is longer in the path of lens interior process, light loss is larger.
Needing to propose, when adopting optical lens, also there is chromatic dispersion problem in most of LED headlamp luminous intensity distribution, and speed and the refractive index of the light of the corresponding different wave length of optical lens of commaterial are different.Sunshine is through triangular prismatic type lens, and light can be divided into red, orange, yellow, green, indigo, Lan Hezi, and the longer refractive index of wavelength is less, and the shorter refractive index of wavelength is larger.Traditional LED headlamp as shown in Figure 2 weakens chromatic dispersion problem by micro-mobile lens 30 with the distance of focal point F 2.Be exactly the De-dispersion lens applying to camera lens field in addition, such as, adopt structure as shown in Figure 3, concavees lens 32 are put in convex lens 31 and convex lens 33 centre makes dispersion offset, thus elimination chromatic dispersion problem, but because this theory structure is complicated, focus is longer, is not suitable for applying to headlamp optical lens.
On horizontal alignment on the right side of vertical point optical screen center line, oblique line at 45 ° has two kinds of methods to be formed to horizontal vertical apart from the broken line of 25cm steering horizontal at present.A kind of method is 45 ° of oblique lines making of employing eclipser 20 as shown in Figure 2 and goes to horizontal fold line.Another method directly adopts reflector to reflect to form the broken line of oblique line at 45 ° to horizontal vertical apart from 25cm steering horizontal on horizontal alignment, due to the amplification that reflector schistose surface is LED chip size and dimension, therefore its light type being difficult to direct shape oblique line at 45 ° and going to level.
Also there is heat dissipation problem in headlamp, because LED light source belongs to light emitting diode electronic components and parts, temperature will directly affect the life problems of LED light source, if lamp power is excessive, radiator volume will be very large, weight is very heavy, be unfavorable for the utilization on vehicle, need forced cooling device, the life-span of forced cooling device directly has influence on again life-span and the complex structure degree of headlamp, therefore only has and the light utilization efficiency of headlamp is improved, and LED drive efficiency improves, reduce the power dissipation of light fixture, thus the heat reducing to send will be future trend.
In addition, the development of following headlamp also more trends towards the development of hommization.One of them direction is exactly increase side lighting angle, to improve traffic safety at the vehicles as needed during automobile turning.That is, as automobile in the process of moving, when running into turning, will road ahead be seen clearly before turning.And the headlamp of existing LED, have the headlamp of refractive body 10, eclipser 20 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 primary 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.
Utility model content
Main purpose of the present utility model 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 the use of safety.
Another object of the present utility model 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, and corresponding can project the region that the predetermined light type of LED headlamp on vertical light distribution screen requires.
Another object of the present utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, and it take LED illuminator as light source, thus energy-conservation, durable and environmental protection.
Another object of the present utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein on the opticpath of the LED illuminator of LED light source, be provided with light distribution device, the light that LED light source sends is directly through light distribution device and after being refracted, vertical light distribution screen directly forms the clear dead line of light and shade, without the need to placing eclipser, thus improve the effective rate of utilization 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 utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein light distribution device is the aspheric surface of level intensive sheet surface blending, non-rotating convex lens, surface level is divided into intensive sheet curved surface, a bit ofly in the optical axis level carry out design directional light with the corresponding refractive index of gold-tinted, a bit ofly under the optical axis level carry out design directional light with the corresponding refractive index of blue light, parallel gold-tinted becomes white light with parallel blue light; The mixed proportion of gold-tinted and blue light is regulated according to the upper and lower a bit of ratio of dipped beam axle level, thus color difference eliminating; By a bit of spreading under horizontal plane gradually toward upper part curved surface again in described optical axis level; By a bit of spreading under horizontal plane gradually toward lower part curved surface again under described optical axis level; The light of light distribution device left and right wide-angle, through concavity or convex list structure, is eliminated the aberration of high angle scattered light, thus is made described LED headlamp have high quality white light illuminant color, eliminates blue yellow phenomenon of overflowing of overflowing.
Another object of the present utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, distance wherein between light distribution device and LED light source closer (present case distance is 25mm), described distance closely makes the thickness of light distribution device less, be conducive to injection mo(u)lding, be applicable to large-scale production and application, and described distance closely makes the light cornerite of light distribution device collection LED light source larger, and LED light line is shorter through the path of light distribution device, light loss is less, improves light utilization efficiency.
Another object of the present utility model 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 forward upward from projecting and produce dazzle, affect the driver of the other side's vehicles.Reflective surface directly forms the "cut-off"line of oblique line at 45 ° to horizontal vertical apart from 25cm steering horizontal broken line on horizontal alignment through cutting, without the need to adopting shape eclipser to form the broken line of 45 ° of described oblique lines to horizontal vertical apart from 25cm steering horizontal, improve light utilization efficiency.
Another object of the present utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, wherein the light-shielding beyond light distribution device and reflector cornerite falls by light shield, eliminate light leak, to guarantee to avoid occurring and the afoul veiling glare of light distribution requirements.
Another object of the present utility model 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 utility model can arrange in pairs or groups light distribution device and reflector to produce the effect of optically focused, thus the light making LED light source send is more even, does not occur dark space.
Another object of the present utility model 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 shape eclipser required for traditional LED headlamp, thus make the effect playing LED light source to a greater extent, make the region of needs light have higher light intensity.
Another object of the present utility model 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 line parallel with reflector, thus make described LED light source can reflector described in ring directive, and nationality by described reflector by light collection to need region, thus enhance the light utilization ratio 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 source 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 utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, its reflector has turtleback reflective surface, thus make light be reflected presumptive area on rear arrival filament shield, to meet the requirement of dipped beam, the design of described turtleback 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 in the reverse shape obtaining required reflector, thus described LED headlamp design difficulty of the present utility model is reduced and manufacturing process is relatively simple.
Another object of the present utility model is to provide a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, and its power consumption is lower with heating, thus makes fitting structure simple, and reliability improves and cost reduces, applicable large-scale production and application.
For reaching above object, the utility model provides a kind of ground traffic tools region correspondence to point to light distribution type LED lamp, for a key lighting district, surround, side, on one side high surround and other need the illumination of the light filling surround light distribution requirements making even light filling, described ground traffic tools region correspondence is pointed to light distribution type LED lamp and is comprised:
One LED light source:
One light distribution device, described light distribution device is positioned on the path of Part I light of described LED light source, described Part I light therethrough light distribution device the illumination be refracted away to provide described key lighting district, described light distribution device is also in key lighting district and dark space, right side, directly form light and shade dead line clearly between key lighting district and surround, side;
One reflector, described reflector is arranged on the periphery of described LED light source and light distribution device, it comprises illumination echo area, side, on one side high illumination echo area and other need to do the light filling echo area of even light filling, with respectively by the Part II light of described LED light source, Part III light, Part IV light reflection to surround, described side, high surround, described side, described other need to do the reflection of even light filling and are connected surround; Described reflector also directly forms oblique line at 45 ° on horizontal alignment and forms 15 ° of oblique lines on horizontal alignment to horizontal vertical apart from the broken line of 25cm steering horizontal or reflective surface through rotating;
One light shield, this light shield is configured in the periphery of described light distribution device, to be fallen by the Part V light-shielding beyond light distribution device and reflector cornerite, eliminates light leak, to guarantee to avoid occurring and the afoul veiling glare of light distribution requirements.
According to a preferred embodiment of the present utility model, it is headlamp that described ground traffic tools region correspondence points to light distribution type LED lamp, and the light collection after described light distribution device refraction is to the described key lighting district of described ground traffic tools front lower place.
According in a preferred embodiment of the present utility model, the distance between described light distribution device and described LED light source is 20 ~ 50mm, and the thickness of described light distribution device is 4 ~ 15mm.
According to a preferred embodiment of the present utility model, described light distribution device is the aspheric surface of level intensive sheet surface blending, non-rotating convex lens, described Part I light after its refraction in key lighting district and dark space, right side, directly form light and shade dead line clearly between key lighting district and surround, side.
According to a preferred embodiment of the present utility model, described light distribution device vertical direction is divided into four sections of luminous intensity distribution unit, the optical axis of light distribution device is respectively two sections of luminous intensity distribution unit up and down, be symmetrical arranged with the optical axis of described LED light source, wherein the lower edge of first paragraph luminous intensity distribution unit and the upper limb of second segment luminous intensity distribution unit adjoin and divide be located at described LED light source optical axis on, upper/lower positions, 3rd section of luminous intensity distribution unit and the 4th section of luminous intensity distribution unit divide and are located at the upper of described light distribution device, upper/lower positions, wherein the lower edge of the 3rd section of luminous intensity distribution unit and the upper limb of first paragraph luminous intensity distribution unit adjoin, the upper limb of the 4th section of luminous intensity distribution unit and the lower edge of second segment luminous intensity distribution unit adjoin, the light that described first paragraph luminous intensity distribution unit and second segment luminous intensity distribution unit reflect is parallel with horizontal line or slightly downward, and described 3rd section of luminous intensity distribution unit and the 4th section of light that luminous intensity distribution unit reflects are the light spread downwards gradually.
According to a preferred embodiment of the present utility model, described first paragraph luminous intensity distribution unit is vertical light focusing unit with second segment luminous intensity distribution unit, first paragraph luminous intensity distribution unit is up that refractive index is designed to gold-tinted horizontal parallel light and goes out to be shot out with gold-tinted away from the light of the optical axis of described LED light source gradually, and second segment luminous intensity distribution unit is down that refractive index is designed to blue light levels parallel light emergence and goes out with blue light away from the light of the optical axis of described LED light source gradually.
According to a preferred embodiment of the present utility model, the surface of first paragraph luminous intensity distribution unit and second segment luminous intensity distribution unit is separated into intensive sheet curved surface.
According to a preferred embodiment of the present utility model, described light distribution device is rotated down a γ angle, and the angular range at γ angle is 0 ° ~ 2 °.LED light source emitted light is through the optically focused effect vertical with second segment luminous intensity distribution unit of light distribution device first paragraph luminous intensity distribution unit, vertical light distribution screen can form LED chip vertical dimension amplify, multiplication factor is inversely proportional to the distance between LED light source and light distribution device, the nearlyer multiplication factor of distance is larger, distance multiplication factor far away is less, and "cut-off"line is more clear.Because LED chip size has certain amplification in filament shield vertical direction, symmetry axis is horizontal line hh, needs light distribution device to be rotated down γ angle, makes "cut-off"line at below horizontal line hh.
According to a preferred embodiment of the present utility model, be each side at least provided with a spill bar or convex bar at described light distribution device.
According to a preferred embodiment of the present utility model, the left and right rising angle of described light distribution device is greater than 20 °.
According to a preferred embodiment of the present utility model, the surface of described light distribution device is through trapezoidal separation and the sinking of the center on surface forms a kind of Fresnel Lenses.
According to a preferred embodiment of the present utility model, the inner surface of described reflector is the reflecting surface of segmentation, reflecting surface directly forms oblique line at 45 ° on horizontal alignment through cutting and forms 15 ° of oblique lines on horizontal alignment to horizontal vertical apart from the broken line of 25cm steering horizontal or reflective surface through rotating, and described other high illumination echo area, illumination echo area, described side and other light filling echo areas needing the linking making even light filling to throw light on.
According to a preferred embodiment of the present utility model; 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 light distribution device and the reflex of described reflector respectively, and described light transmission outer cover provides protective effect.
According to a preferred embodiment of the present utility model, described light transmission outer cover is a kind of structure lens of the light quality for improving described LED.
According to a preferred embodiment of the present utility model, described reflector forms a container cavity and has opening, described LED light source is arranged in described container cavity, and project away from described opening after the inner surface that described Part II light, Part III light and Part IV light that described LED light source sends arrive 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 light distribution device and the reflex of described reflector respectively.
According to a preferred embodiment of the present utility model, 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 utility model, 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 utility model, affiliated vehicle area correspondence is pointed to light distribution type LED lamp and is also comprised at least one installation component, to connect described LED light source, light shield and described light distribution device.
Also can only adopt a light distribution device be used alone, to be formed symmetrical and there is the headlamp that dead line light type requires, not need to join reflector.
The beneficial effect pointing to light distribution type LED lamp according to ground traffic tools region of the present utility model correspondence is, it forms required luminous intensity distribution light type by the mode that region is corresponding, thus obtains the hot spot wanted and have enough light intensity.
Accompanying drawing explanation
The light distribution requirements figure of Figure 1A to Figure 1B headlamp right travel vehicle on filament shield.
Fig. 1 C to Fig. 1 F is the schematic diagram of several light distribution requirements on filament shield.
Fig. 2 is a kind of structural representation of traditional LED headlamp.
Fig. 3 is De-dispersion lens schematic diagrames.
Fig. 4 A is the schematic surface according to the utility model light distribution device.
The Part I light therethrough light distribution device that Fig. 4 B is light distribution device described in the utility model the illumination schematic diagram be refracted away to provide described key lighting district.
Fig. 4 C is the hot spot figure of the utility model light distribution device.
Fig. 5 A is the structural representation of the existing reflector reflecting surface of the utility model.
Fig. 5 B is the structural representation of reflector reflecting surface of the present utility model.
The hot spot figure that the reflecting surface 20B that Fig. 5 C is existing reflector shown in Fig. 5 A and reflecting surface 20G reflects.
The hot spot figure that the reflecting surface 20B that Fig. 5 D is the utility model reflector shown in Fig. 5 B and reflecting surface 20G reflects.
Fig. 5 E is the hot spot figure of all reflective surface of the utility model reflector.
Fig. 6 A is the exploded perspective view that a kind of ground traffic tools region of the utility model correspondence points to light distribution type LED lamp.
Fig. 6 B is the sectional view that a kind of ground traffic tools region of the utility model correspondence points to light distribution type LED lamp.
Fig. 6 C is the schematic appearance that a kind of ground traffic tools region of the utility model correspondence points to light distribution type LED lamp.
Fig. 7 A is the structural representation that a kind of ground traffic tools region of the utility model correspondence points to the LED light emitting source of light distribution type LED lamp.
Fig. 7 B is the top view of Fig. 7 A.
A kind of ground traffic tools region of Fig. 7 C the utility model correspondence points to the schematic perspective view of the LED light emitting source of light distribution type LED lamp.
Fig. 8 is the dipped beam hot spot figure that ground traffic tools region of the present utility model correspondence sensing light distribution type LED lamp is formed on filament shield.
Fig. 9 is the distance light hot spot figure that ground traffic tools region of the present utility model correspondence sensing light distribution type LED lamp is formed on filament shield.
Detailed description of the invention
Point to light distribution type LED lamp according to the ground traffic tools region correspondence of an embodiment of the present utility model as shown in Fig. 4 A to Fig. 7 C.This 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 person being unlikely to again to sail front the vehicle come produces dazzling effect, thus is used safely and effectively.
Particularly, this ground traffic tools region correspondence is pointed to light distribution type LED lamp and is comprised-LED light source 100, reflector 200, light distribution device 300, light shield 400, and a light transmission outer cover 500.
LED light source 100 can reach the requirement of headlamp for distance light, so directly can be made into high beam headlamp.
And in the utility model, the main formation that dipped beam LED headlamp is discussed.LED headlamp of the present utility model also comprises for converging the reflector 200 of light and light distribution device 300, reflector 200 is arranged on LED light source 100 around, light distribution device 300 is arranged on the opticpath of LED light source 100, thus a part of light of LED light source 100 is gone to horizontal fold line by the direct shape of reflection oblique line at 45 ° after the light that LED light source 100 sends arrives reflector 200, the light therethrough light distribution device 300 of another part reflects and directly forms horizontal line "cut-off"line, light beyond reflector 200 and light distribution device 300 cornerite is blocked cover 400 and eliminates, thus prevent light from upwards projecting formation dazzle and affecting the driver that vehicle is sailed in front.
LED light source 100 comprises one or more LED illuminator 110, the opticpath of each LED illuminator 110 can be provided with corresponding light distribution device 300.LED light source 100 is arranged on one block of heat sink 700, so that heat radiation.
Light distribution device 300 is the aspheric surface of level intensive sheet surface blending, non-rotating convex lens, inject light and on filament shield, form the clear dead line of light and shade after its refraction, horizontal upper part near optical axis divides the different wavelengths of light process mixing with lower part, alleviates excessive blue light, gold-tinted phenomenon of overflowing that horizontal "cut-off"line intersection produces because of dispersion.For the dipped headlights of blue light+fluorescent material white LED light source, light distribution device design is relevant with following factor:
Distance dependent between (a) light distribution device 300 and LED light source 100.Distance between the LED illuminator 110 of light distribution device 300 and LED light source 100 is far away, and reach enough LED light line collection angles, light distribution device 300 thickness is thicker, and horizontal line light and shade is clear; Distance between light distribution device 300 and LED illuminator 110 is nearer, and LED light line collection angle is larger, and light distribution device 300 thickness is less, but horizontal line light and shade is clear fuzzyyer, in the present embodiment, light distribution device 300 is 25mm with the spacing of LED light source 100, thickness 6.8mm.
B the light of () LED light source 100 directly reflects through light distribution device 300 and forms horizontal light and shade dead line clearly, as shown in Figure 2, traditional lens 30 are the aspheric surfaces rotated, and being refracted on vertical light distribution screen is a circle light type, can not directly form horizontal "cut-off"line.Light distribution device 300 of the present utility model is made up of the curved surface of the intensive sheet of level.As shown in Figure 4 A and 4 B shown in FIG., the light of horizontal direction can according to design needs, optically focused, or level spreads gradually, is not stretching structure; The luminous intensity distribution of vertical direction is divided into four large sections of luminous intensity distribution unit 330,340,350,360, some segments are divided into again inside every section of luminous intensity distribution unit 330,340,350,360, luminous intensity distribution unit 330,350 is designed to parallel with horizontal line near the light of the vertical direction of optical axis interlude, or slightly downwards, the light of the vertical direction of luminous intensity distribution unit 340,360 upper-lower section is designed to spread downwards gradually.
C the light of () LED light source 100 directly reflects through light distribution device 300 and forms horizontal light and shade dead line clearly, and eliminate chromatic dispersion problem, this point is vital, if do not eliminate chromatic dispersion problem, again because focus is so near, horizontal cut line is just unintelligible, is difficult to reach the requirement of dipped headlights light type.Because the refractive index of the corresponding commaterial of the light of different wave length is different, the longer refractive index of wavelength is less, and the shorter refractive index of wavelength is larger.As shown in Figure 4 B, incidence angle α 1, α 2 are larger, angle β 1 between the blue light of outgoing and gold-tinted, β 2 are larger, blue yellow phenomenon of overflowing of overflowing is more serious, therefore the luminous intensity distribution unit 330,350 of the optical axis near LED light source 100 designs as vertical optically focused by we, instead of the luminous intensity distribution unit 340,360 of the optical axis away from LED light source 100 is also designed as vertical optically focused.Luminous intensity distribution unit 330,350 surface segmentation is become intensive sheet curved surface, luminous intensity distribution unit 330,350 is near the light of the optical axis of LED light source 100, because incidence angle α 1, α 2 jiaos are little, the blue light of outgoing and gold-tinted β 1, β 2 angle are very little, dispersion is very little, is therefore designed to the outgoing of horizontal parallel light.Luminous intensity distribution unit 330 is up that refractive index is designed to the outgoing of gold-tinted horizontal parallel light away from the light of the optical axis of LED light source 100 with gold-tinted gradually, luminous intensity distribution unit 350 is down that refractive index is designed to blue light levels parallel light emergence away from the light of the optical axis of LED light source 100 with blue light gradually, gold-tinted and blue light are because being all directional light, vertical light distribution screen mixes again, thus elimination chromatic dispersion problem, improve light quality.
D the optical design of () light distribution device 300 is the slightly downward horizontal light and shade dead line clearly of level, light distribution device 300 can rotate γ angle slightly down as shown in Figure 4 B.
(e) due to about light distribution device 300 level only according to designing requirement, be designed to optically focused, or horizontal proliferation gradually, and the square chip of the illuminator 110 of LED light source 100 is linear array, gap is had between each LED illuminator 110 of LED light source 100, the blue light ratio that LED illuminator 110 side sends is high, and therefore through the amplification of light distribution device 300, the photochromic difference of level left and right wide-angle is obvious.In order to eliminate this phenomenon, light distribution device 300 the right and left design increase by 310 structure, its structure can be recessed or convex list structure, with color difference eliminating problem.
The size of the level left and right angle of flare of (f) light distribution device 300, as shown in Figure 1A to Figure 1B, just can meet the demands according to only needing 9 °, left and right about ECE standard-required, but in actual steering vehicle, vehicle needs suitable side illumination to increase visual field horizontal width when turning, the left and right rising angle of the light distribution device 300 of present case is greater than 20 °, to improve traffic safety, as shown in Figure 4 C.
G the thickness of () light distribution device 300 can a nearly step design less, according to Fresnel Lenses principle, light distribution device 300 surface segmentation is become scalariform shape, sinking of thick middle, again piece together the light distribution device of class Fresnel lens structure.
Light distribution device 300 is positioned on suitable position, corresponding LED illuminator 110 front.In a concrete example, light distribution device 300 is also provided with at least one installation component 410, thus makes light distribution device 300 be arranged on corresponding suitable location on the opticpath of the LED illuminator 110 of LED light source 100 by this installation component 410.The effect of what one of value was carried is described light distribution device 300 be formed required for the illumination of main region, and form obvious "cut-off"line, as shown in Figure 4 C.And aforesaid light shield 400 is arranged on this installation component 410.
The LED illuminator 110 of LED light source 100 to be arranged in the container cavity that defined by reflector 200 in 210, and the light that LED illuminator 110 sends can converge by reflector 200 together with light distribution device 300.Light after reflector 200 reflects and then projected the direction of needs after converging through the light of light distribution device 300, more specifically, the light after the internal surface reflection of reflector 200 outwards projects from the opening 220 of reflector 200.
In addition, because reflector 200 be in fact the photoconduction that the LED illuminator 110 of LED light source 100 sends drawn to each corresponding surround, other high surround and evenly light filling district projection, thus key lighting district below the h-h ' line of LED light source 100 on the filament shield of photometric standards and even light filling surround transmission, thus its uniformity of described surround is improved, to meet the requirements.And have now in technology, as shown in Figure 2, in order to obtain desirable dipped beam effect and form "cut-off"line on filament shield, its be provided with eclipser 20 with realize ideal light and shade cut-off and effectively stop the some light of more than key lighting district h-h ' line, thus the light making light source send creates very most of waste, and the light 100 that LED light source sends in the utility model obtains effective utilization.
According to this embodiment of the present utility model, it is not identical with prior art apart from the broken line of 25cm steering horizontal to horizontal vertical that the utility model forms oblique line at 45 ° on the high surround, side of headlamp and horizontal alignment.Principle shown in Fig. 2 shows the existing design concept of cutting change of the light and shade surround adopting shape eclipser to realize 45 ° of oblique lines and to go to horizontal fold line.The utility model directly adopts reflector to be reflected into the technology of oblique line at 45 ° to horizontal vertical apart from the broken line of 25cm steering horizontal on other high surround and horizontal alignment, due to the amplification that reflector schistose surface is LED chip size and dimension, the shape of LED chip is squarish, is difficult to direct shape oblique line at 45 ° and goes to the hot spot of level.As shown in Figure 5A.The position of schistose surface 200G and 200B of reflector 200A, just at a certain angle with LED light source, by computer software emulate light-emitting type as shown in Figure 5 C, there are 45 ° of certain oblique lines and go to the light type of level, but 45 ° of oblique lines are clear not enough, therefore the line of cut 200D of the schistose surface 200G of Fig. 5 A is cut again, cut into the line of cut 200F of reflector 200 schistose surface 200A as shown in Figure 5 B, schistose surface 200A and 200B of reflector 200 is by computer software emulation as Fig. 5 D hot spot, and 45 ° of oblique lines are very clear.
Be in the photometric standards of some headlamps as shown in Figure 1A to 1F, in fig. ie, the light that headlamp sends needs area pellucida below h-h ' line on vertical light distribution screen to need to reach certain light intensity.Can reach above-mentioned requirements completely according to LED light source 100 of the present utility model, 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 Fig. 1 D, Fig. 1 E, the light of headlamp can have diagonal beam to both sides.More specifically, the right side headlamp of such as automobile allows upper right side to have light beam, and left side headlamp allows there is light beam to upper left side.Fig. 1 F is the light type of the light distribution requirements of high beam.Certainly, these light distribution requirements just as an example, can also have other concrete light distribution requirements in actual use.
Namely the design of the reflective surface of the turtleback segmentation of reflector 200 is to meet above-mentioned light distribution requirements.According to this embodiment of the present utility model, reflector 200 schistose surface 200A and 200B forms other high illumination, the broken line light type of oblique line at 45 ° to horizontal vertical apart from 25cm steering horizontal on horizontal alignment, other schistose surface of reflector 200 forms key lighting district, surround, side to increase the angle of horizontal field of view, for seeing the pedestrian etc. on guideboard and road clearly, as shown in fig. 5e, be the light type figure of reflector 200, left and right horizontal rising angle is greater than 20 °, and downward rising angle is greater than 13 °.Downward wide-angle light is conducive to vehicle when pitching, and makes vehicle have larger downward road view.
It is worth mentioning that, the situation shown in figure is only not used in restriction the utility model as an example, and the inner surface of reflector 200 of the present utility model also can manufacture described other light requirements of LED headlamp formation light type as shown in fig. 5e.In reality is used, utility model design of the present utility model goes for revising according to the requirement of concrete filament shield.And for reaching some predetermined light type, the structure of reflector 200 can have multiple.And the region that light and the light after described light distribution device 300 reflect after reflector 200 reflects projects respectively is not be separated completely, it can certainly be overlap to some extent.Such as, light that is, after the reflection of reflector 200 also has the ray cast of a small amount of part to above-mentioned key lighting district.
It will be further appreciated that, the reflective surface of the turtleback segmentation of reflector 200 is also provided with the light filling echo area 200C of the linking illumination that other need to do even light filling.
That is, in order to high surround, above-mentioned side, and the even linking between side illumination and Zhu Zhao district, the light filling echo area 200C on reflector 200 makes above-mentioned three surrounds form a complete hot spot, is the light type that the LED headlamp in this example is formed on filament shield as shown in Figure 8.
In the utility model, the inner surface of reflector 200 is not smooth surface, and it is turtleback in precalculated position, for the light reflection of the inner surface by reaching reflector 200 to required region.
It is worth mentioning that described LED light source 100 outwards can be arranged along the direction of the centerline axis parallel with reflector 200, thus LED light source 100 can ring directive reflector 200, and by reflector 200 by the region of light collection to needs, thus enhance the light utilization efficiency of LED light source 10, and be arranged on along on an installing plate of ellipsoid refractive body center line axis vertically upward 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 blocked, as shown in Figure 2.That is, in the utility model, multiple LED illuminator 110 of LED light source 100 are radially arranged towards the opening 220 of reflector 200, instead of the mounting means in the traditional headlamp shown in Fig. 2, this make in this traditional headlamp S region shown in the figure approximately only have the light of 1/3rd be used to project effective lighting region, thus cause great waste.So ground traffic tools region of the present utility model 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 utility model correspondence points to the efficient light-configuration mode of light distribution type LED lamp, it can reach the more wide-angle illumination in left and right.That is, the predetermined projected area that ground traffic tools region of the present utility model 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 some present light distribution requirements, light left and right angle is at 9 degree to about 20 degree, and ground traffic tools region of the present utility model correspondence sensing light distribution type LED lamp can provide bright enough more wide-angle illumination.Thus make to 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 utility model will be irradiated to the road surface of previous turns, and like this before automobile 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.
This ground traffic tools region correspondence is pointed to light distribution type LED lamp and is also comprised the effect that a light transmission outer cover 500 plays protection element; also comprise a housing 600, in order to install LED light source 100, reflector 200, light distribution device 300, light shield 400 and drive circuit 700 simultaneously.
As mentioned above, light sends from each LED illuminator 110 of LED light source 100, and in the scattering of space multistory angular direction, the light directly sent towards the opening 220 of reflector 200 after passing light distribution device 300 and being refracted from opening 220 projected outward, and the inner surface of reflector 200 can be arrived towards the light of surrounding, and after the inner surface of reflector 200 is reflected, project opening 220 again, reflector 200 and light distribution device 300 collect beyond LED light eliminate through light shield 400, a part of light that light distribution device 300 reflects and another part light after the internal surface reflection of reflector 200 are again through light transmission outer cover 500, thus the light making described LED headlamp finally send is reaching the satisfactory luminous intensity distribution light type of formation after on 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 utility model is by the shape and size of the described reflector 200 of adjustment, also can be used for manufacturing the high beam of LED headlamp, horizontal direction is only had to have test point requirement in high beam standard-required, vertical direction does not do requirement, but in reality, such as, when vehicle is driven on a highway, often need to see guideboard and nearby clearly at a distance, in order to avoid sail wrong track into.As shown in Figure 9, the utility model design can realize only adding optically focused in the vertical direction, angle is greater than 10 °, and unlike traditional high beam design concept, light free diffusing beyond reflector cornerite, is difficult to increase the illumination in direction vertically upward, and such light waste is larger, cause light pollution again simultaneously, affect other vehicle driving safety.
Left and right light type is greater than 20 °, and left and right wide-angle 25L and 25R test point light intensity are greater than 7500cd, whole lamp consumed power 12W, power consumption is less, and the heat that light fixture gives out is less, thus reduces the requirement of luminaire heat dissipating system, simplify the structure, improve reliability and reduce cost.
Also can only adopt a light distribution device be used alone, to be formed symmetrical and there is the headlamp that dead line light type requires, not need to join reflector.
One skilled in the art will understand that the embodiment of the present utility model shown in foregoing description and accompanying drawing only limits the utility model as an example and not.
As can be seen here, the object of the utility model is complete and be effectively achieved.Function of the present utility model and structural principle are shown in an embodiment and are illustrated, do not deviating under described principle, embodiment can make any amendment.So the utility model includes all variant embodiment based on claim spirit and right.
Claims (19)
1. a ground traffic tools region correspondence points to light distribution type LED lamp, for a key lighting district, surround, side, on one side high surround and other need the illumination of the relevant surround light distribution requirements making even light filling, 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 light distribution device, described light distribution device is positioned on the path of Part I light of described LED light source, described Part I light therethrough light distribution device the illumination be refracted away to provide described key lighting district, described light distribution device is also in key lighting district and dark space, right side, directly form light and shade dead line clearly between key lighting district and surround, side;
One reflector, described reflector is arranged on the periphery of described LED light source and light distribution device, it comprises illumination echo area, side, on one side high illumination echo area and other need to do the light filling echo area of even light filling, with respectively by the Part II light of described LED light source, Part III light, Part IV light reflection to surround, described side, high surround, described side, described other need to do the relevant surround that even light filling is connected; Described reflector also directly forms oblique line at 45 ° on horizontal alignment and forms 15 ° of oblique lines on horizontal alignment to horizontal vertical apart from the broken line of 25cm steering horizontal or reflective surface through rotating;
One light shield, this light shield is configured in the periphery of described light distribution device, to be fallen by the Part V light-shielding beyond light distribution device and reflector cornerite, eliminates light leak.
2. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 1, it is characterized in that headlamp, front fog lamp, and the light collection after described light distribution device refraction is to the described key lighting district in described ground traffic tools front.
3. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 1, and it is characterized in that, the distance between described light distribution device and described LED light source is 20 ~ 50mm, and the thickness of described light distribution device is 4 ~ 15mm.
4. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 3, it is characterized in that, described light distribution device is the aspheric surface of level intensive sheet surface blending, non-rotating convex lens, described Part I light after its refraction in key lighting district and dark space, right side, directly form light and shade dead line clearly between key lighting district and surround, side.
5. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 4, it is characterized in that, described light distribution device vertical direction is divided into four sections of luminous intensity distribution unit, the optical axis of light distribution device is respectively two sections of luminous intensity distribution unit up and down, be symmetrical arranged with the optical axis of described LED light source, wherein the lower edge of first paragraph luminous intensity distribution unit and the upper limb of second segment luminous intensity distribution unit adjoin and divide be located at described LED light source optical axis on, upper/lower positions, 3rd section of luminous intensity distribution unit and the 4th section of luminous intensity distribution unit divide and are located at the upper of described light distribution device, upper/lower positions, wherein the lower edge of the 3rd section of luminous intensity distribution unit and the upper limb of first paragraph luminous intensity distribution unit adjoin, the upper limb of the 4th section of luminous intensity distribution unit and the lower edge of second segment luminous intensity distribution unit adjoin, the light that described first paragraph luminous intensity distribution unit and second segment luminous intensity distribution unit reflect is parallel with horizontal line or slightly downward, and described 3rd section of luminous intensity distribution unit and the 4th section of light that luminous intensity distribution unit reflects are the light spread downwards gradually.
6. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 5, it is characterized in that, described first paragraph luminous intensity distribution unit is vertical light focusing unit with second segment luminous intensity distribution unit, first paragraph luminous intensity distribution unit is up that refractive index is designed to gold-tinted horizontal parallel light and goes out to be shot out with gold-tinted away from the light of the optical axis of described LED light source gradually, and second segment luminous intensity distribution unit is down that refractive index is designed to blue light levels parallel light emergence and goes out with blue light away from the light of the optical axis of described LED light source gradually.
7. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 6, and it is characterized in that, the surface of first paragraph luminous intensity distribution unit and second segment luminous intensity distribution unit is separated into intensive sheet curved surface.
8. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 7, and it is characterized in that, described light distribution device is rotated down a γ angle, and the angular range at γ angle is 0 ° ~ 2 °.
9. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 8, it is characterized in that, is each side at least provided with a spill bar or convex bar at described light distribution device.
10. ground traffic tools region correspondence points to light distribution type LED lamp as claimed in claim 9, and it is characterized in that, the left and right rising angle of described light distribution device is greater than 20 °.
11. as claimed in claim 10 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, the surface of described light distribution device through trapezoidal separation and the center on surface sink formed a kind of Fresnel Lenses.
12. as claimed in claim 1 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, the inner surface of described reflector is the reflecting surface of segmentation, reflecting surface directly forms oblique line at 45 ° on horizontal alignment through cutting and forms 15 ° of oblique lines on horizontal alignment to horizontal vertical apart from the broken line of 25cm steering horizontal or reflective surface through rotating, be configured to described other high illumination echo area, illumination echo area, described side and other need to make even light filling and be connected the light filling echo area of throwing light on.
13. as claimed in claim 1 ground traffic tools region correspondence point 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 light distribution device and the reflex of described reflector respectively; described light transmission outer cover provides protective effect, and this light transmission outer cover can require according to different vehicle and have different planforms.
14. as claimed in claim 13 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, described light transmission outer cover is a kind of structure lens of the light quality for improving described LED.
15. as claimed in claim 1 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, described reflector forms a container cavity and has opening, described LED light source is arranged in described container cavity, and the described Part II light that described LED light source sends, project away from described opening after the inner surface that Part III light and Part IV light arrive 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 light distribution device and the reflex of described reflector respectively.
16. as claimed in claim 15 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.
17. as claimed in claim 15 ground traffic tools region correspondence point to light distribution type LED lamp, it is characterized in that, described LED light source along the direction of the centerline axis parallel in described reflector and described opening towards described reflector arrange.
18. as claimed in claim 1 ground traffic tools region correspondence 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, light shield and described light distribution device.
19. as claimed in claim 1 ground traffic tools region correspondence point to light distribution type LED lamp, be further characterized in that, also can only adopt a light distribution device be used alone, to be formed symmetrical and there is the headlamp that dead line light type requires, do not need to join reflector.
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| CN201420404019.8U CN204648055U (en) | 2014-07-21 | 2014-07-21 | Ground traffic tools region correspondence points to light distribution type LED lamp |
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| CN201420404019.8U CN204648055U (en) | 2014-07-21 | 2014-07-21 | Ground traffic tools region correspondence points to light distribution type LED lamp |
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| CN204648055U true CN204648055U (en) | 2015-09-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104534378A (en) * | 2014-07-21 | 2015-04-22 | 上海开腾信号设备有限公司 | Area-corresponding pointing light-distribution type LED lamp of ground transportation tool |
| CN106555982A (en) * | 2015-12-31 | 2017-04-05 | 佛山市中山大学研究院 | A kind of collimating lens and its method for designing |
| CN106568048A (en) * | 2016-11-07 | 2017-04-19 | 宁波市鄞州雅佳达车业有限公司 | Head lamp |
| CN107940392A (en) * | 2017-12-29 | 2018-04-20 | 帝欧(上海)光电科技有限公司 | LED light lens module and matrix headlight |
| WO2018126880A1 (en) * | 2017-01-06 | 2018-07-12 | 上海开腾信号设备有限公司 | Lighting system integrating high and low beams, low beam headlamp, and high beam headlamp |
| CN108613108A (en) * | 2017-01-06 | 2018-10-02 | 上海开腾信号设备有限公司 | Distance-light integrated illumination system and lower beam headlamp, high beam headlamp |
| CN110397891A (en) * | 2018-04-18 | 2019-11-01 | 索特精密有限公司 | Illumination optical apparatus for mobile carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104534378A (en) * | 2014-07-21 | 2015-04-22 | 上海开腾信号设备有限公司 | Area-corresponding pointing light-distribution type LED lamp of ground transportation tool |
| CN106555982A (en) * | 2015-12-31 | 2017-04-05 | 佛山市中山大学研究院 | A kind of collimating lens and its method for designing |
| CN106568048A (en) * | 2016-11-07 | 2017-04-19 | 宁波市鄞州雅佳达车业有限公司 | Head lamp |
| CN106568048B (en) * | 2016-11-07 | 2019-01-15 | 宁波市鄞州雅佳达车业有限公司 | A kind of head lamp |
| WO2018126880A1 (en) * | 2017-01-06 | 2018-07-12 | 上海开腾信号设备有限公司 | Lighting system integrating high and low beams, low beam headlamp, and high beam headlamp |
| CN108613108A (en) * | 2017-01-06 | 2018-10-02 | 上海开腾信号设备有限公司 | Distance-light integrated illumination system and lower beam headlamp, high beam headlamp |
| CN107940392A (en) * | 2017-12-29 | 2018-04-20 | 帝欧(上海)光电科技有限公司 | LED light lens module and matrix headlight |
| CN110397891A (en) * | 2018-04-18 | 2019-11-01 | 索特精密有限公司 | Illumination optical apparatus for mobile carrier |
| CN110397891B (en) * | 2018-04-18 | 2022-02-18 | 索特精密有限公司 | Optical lighting device for mobile carrier |
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