CN103140710A - Vehicle headlamp - Google Patents
Vehicle headlamp Download PDFInfo
- Publication number
- CN103140710A CN103140710A CN2011800443080A CN201180044308A CN103140710A CN 103140710 A CN103140710 A CN 103140710A CN 2011800443080 A CN2011800443080 A CN 2011800443080A CN 201180044308 A CN201180044308 A CN 201180044308A CN 103140710 A CN103140710 A CN 103140710A
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- China
- Prior art keywords
- light
- beam direction
- headlight
- automobile
- direction cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
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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]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
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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
- F21S41/19—Attachment of light sources or lamp holders
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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
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
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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
- F21S41/39—Attachment thereof
Abstract
This vehicle headlamp is provided with: a transparent cover; a lamp body; and an illumination optical system that is housed within the lamp body and that projects light through the transparent cover to a predetermined illumination region in front of the vehicle. The illumination optical system is provided with: a semiconductor light-emitting element of which the optical axis is set in the direction of the transparent cover; and a light-beam guide tube that is provided between the semiconductor light-emitting element and the transparent cover and surrounds the periphery of the optical axis, regulating the illumination region.
Description
Technical field
The present invention relates to a kind of headlight for automobile.
The application requires the priority of No. 2010-209502 application of Patent that proposed in Japan on September 17th, 2010, and with its content quotation in the application.
Background technology
Headlight for automobile is from traffic safety aspect consideration, for the field of illumination that light is incident upon the vehicle front regulation arranges.Determine this field of illumination according to the specification of vehicle or the rules of defined, the lamp optical system of headlight for automobile is carried out optical design, make light can be incident upon the field of illumination that this is determined.Headlight for automobile is disclosed in following patent documentation,, it possesses light source, lens, reflector etc. as optical lighting system.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2007-207528 communique
Patent documentation 2: TOHKEMY 2010-108637 communique
Summary of the invention
The technical problem to be solved in the present invention
But, in the optical design of prior art, have the problem of cost plenty of time and expense.Particularly, need to carry out the focal position of regulation light source, lens, reflector, also need to carry out the optical design of the optically focused, diffusion etc. of scioptics.Therefore, before research and development of products, need to repeatedly carry out several to tens of above-mentioned optical designs, trial-production, experiment are also carried out so repeatedly, therefore have the problem that need spend plenty of time and expense when research and development finish.
The present invention completes in view of the above problems.The purpose of this invention is to provide a kind of headlight for automobile, the optical design of this headlight for automobile is easy, can realize stipulating performance, and the time of manufacturing experimently, testing is short, and cost burden is also little.
The technological means of technical solution problem
In order to solve the problems of the technologies described above, the present invention adopts following structure.The headlight for automobile of one embodiment of the present invention possesses translucent cover, lamp body and optical lighting system; Described optical lighting system is accommodated in described lamp body, by described translucent cover, light is incident upon the field of illumination of vehicle front regulation.Described optical lighting system possesses semiconductor light-emitting elements and beam direction cylinder; Set the optical axis of described semiconductor light-emitting elements towards translucent cover; Described beam direction cylinder is arranged between described semiconductor light-emitting elements and described translucent cover, around described optical axis, stipulates out described field of illumination simultaneously.
By adopting such structure, the light that the directive property of sending from semiconductor light-emitting elements is high is configured in the axial beam direction cylinder guiding of its light, is incident upon the field of illumination of vehicle front regulation by translucent cover.Stipulate out the field of illumination by the beam direction cylinder.The simple shape of this beam direction cylinder, owing to not needing to calibrate focus as prior art, so its configuration free degree is high, easily change design.And, by the design of change beam direction cylinder opening shape, can adjust direction of illumination, range of exposures, light quantity, therefore, can easily realize the performance that requires of stipulating.
In addition, described headlight for automobile can be also following structure: described beam direction cylinder also possesses light inlet and light-emitting window, and described light inlet is arranged on a side that disposes described semiconductor light-emitting elements; Described light-emitting window is arranged on a side that disposes described translucent cover.In addition, at least a portion overlay configuration of at least a portion of described light inlet and described light-emitting window is on the bearing of trend of described optical axis.
By adopting such structure, because at least a portion overlay configuration of at least a portion of light inlet and light-emitting window is on the bearing of trend of described optical axis, therefore the large direct light of light quantity that is sent by semiconductor light-emitting elements is imported into translucent cover, is incident upon the field of illumination.
In addition, described headlight for automobile can be also following structure: described beam direction cylinder have aperture area except above direction on the shape that increases gradually towards described light-emitting window from described light inlet.
By adopting such structure, the light that sends from semiconductor light-emitting elements radiates, spreads, but because the aperture area of beam direction cylinder increases towards light-emitting window gradually from light inlet, therefore can radiate by this, spread to reduce the collision of light and beam direction cylinder inner face, thereby reduce the light loss that causes because of this collision.In addition, by make the beam direction cylinder except above direction on increase gradually, can reduce the light quantity of top, thereby eliminate the dazzle that car is in opposite directions caused.
In addition, described headlight for automobile can be also following structure: described headlight for automobile also possesses position adjusting mechanism, and this position adjusting mechanism is adjusted the position of light-emitting window.
By adopting such structure, even after installing the beam direction cylinder, also can by adjusting the position of light-emitting window, adjust direction of illumination.
In addition, described headlight for automobile can be also following structure: the inner face side at described beam direction cylinder arranges reflective surface.
By adopting such structure, collide the light on beam direction cylinder inner face by radiation, diffusion, reflected by reflective surface, finally derive from light-emitting window, so can be with the light that sends without being incident upon lavishly the field of illumination.
In addition, described headlight for automobile can be also following structure: described reflective surface has curvature.
By adopting such structure, make reflective surface have curvature, can control catoptrical range of scatter.
In addition, described headlight for automobile can be also following structure: on the inner face side of described beam direction cylinder, the described reflective surface that is arranged on the top has mutually different light reflectivities from the described reflective surface that is arranged on the below.
By adopting such structure, can avoid by the reverberation of the reflective surface of top reflection with by mutual polarization interference between the reverberation of the reflective surface reflection of below, make it be radiated at equally the field of illumination.
In addition, described headlight for automobile can be also following structure: the optical axis of described semiconductor light-emitting elements is set towards the below along the horizontal plane direction.
By adopting such structure, be set in along the below of horizontal plane direction by the optical axis with semiconductor light-emitting elements, due to the projection of the field of illumination on road pavement direct light, therefore can effectively utilize light quantity.
In addition, described headlight for automobile can be also following structure: the bottom in an end of described translucent cover one side of disposing of described beam direction cylinder has the notch geometry that cuts out towards the other end that disposes described semiconductor light-emitting elements one side with predetermined distance.
By adopting such structure, because the downside of beam direction cylinder shortens relatively with respect to upside, therefore can in restriction in the light of upside, increase the light quantity towards the light of downside.
In addition, described headlight for automobile can be also following structure: described notch geometry, can clip on the left and right directions of described optical axis, and reserve the interval and arrange in pairs.
By adopting such structure, can suppress the light quantity of field of illumination, vehicle dead ahead, increase simultaneously the light quantity of the field of illumination of its left and right directions.
In addition, described headlight for automobile can be also following structure: described beam direction cylinder possesses light inlet and light-emitting window; Described light inlet is arranged on and disposes described semiconductor light-emitting elements one side, and described light-emitting window is arranged on and disposes described translucent cover one side.In addition, the described light inlet of configuration makes between itself and described semiconductor light-emitting elements and leaves the gap.
By adopting such structure, spill from the gap between light inlet and semiconductor light-emitting elements by making light, make its not only inside of illumination beam guide cylinder, but also irradiation is outside, can improve aesthetics.
In addition, described headlight for automobile can be also following structure: described beam direction cylinder possesses light inlet and light-emitting window, and described light inlet is arranged on and disposes described semiconductor light-emitting elements one side, and described light-emitting window is arranged on and disposes described translucent cover one side.In addition, at barrel formation second light-emitting window of described beam direction cylinder, this second light-emitting window imports the light-output of inside to outside with part by described light inlet.
By adopting such structure, by light is leaked to outside from formed the second light-emitting window of the barrel of beam direction cylinder energetically, can improve aesthetics.
The invention effect
According to the present invention, a kind of optical design can be obtained easy, and performance can be realized stipulating, the time of trial-production, test is short, the headlight for automobile that cost burden is also little.
Description of drawings
Fig. 1 is provided with the stereogram of passenger car of the fog lamp (Fog lamp) of one embodiment of the present invention for expression.
Fig. 2 is the cutaway view of the mounting structure of the fog lamp of this embodiment of expression.
Fig. 3 is the stereogram of the fog lamp of this embodiment of expression.
Fig. 4 is the three-dimensional exploded view of the fog lamp of this embodiment of expression.
Fig. 5 is the cutaway view of the fog lamp of this embodiment of expression.
Fig. 6 is the view sub-anatomy of the fog lamp of this embodiment of expression.
Fig. 7 is the figure of the directional property of expression LED.
Fig. 8 A is the A-A cutaway view of Fig. 6.
Fig. 8 B is the B-B cutaway view of Fig. 6.
Fig. 9 A is the figure of the light-emitting window opening shape of another embodiment of expression the present invention.
Fig. 9 B is the figure of the light-emitting window opening shape of another embodiment of expression the present invention.
Fig. 9 C is the figure of the light-emitting window opening shape of another embodiment of expression the present invention.
Fig. 9 D is the figure of the light-emitting window opening shape of another embodiment of expression the present invention.
Fig. 9 E is the figure of the light-emitting window opening shape of another embodiment of expression the present invention.
Figure 10 A is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 10 B is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 11 is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 12 is the front view of the translucent cover of another embodiment of expression the present invention.
Figure 13 is the cutaway view of the translucent cover of another embodiment of expression the present invention.
Figure 14 is the cutaway view of the translucent cover of another embodiment of expression the present invention.
Figure 15 A is the front view of the fog lamp of another embodiment of expression the present invention.
Figure 15 B is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 16 A is the front view of the fog lamp of another embodiment of expression the present invention.
Figure 16 B is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 17 is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 18 is the cutaway view of the fog lamp of another embodiment of expression the present invention.
Figure 19 is the upward view of the beam direction cylinder of another embodiment of expression the present invention.
The specific embodiment
Below, with reference to accompanying drawing, a mode in embodiment of the present invention is described.In addition, in the following description, represent that for example the present invention is applicable to the situation of fog lamp.
Fig. 1 is provided with the stereogram of passenger car 100 of the fog lamp 1 of embodiment of the present invention for expression.Fig. 2 is the cutaway view of the mounting structure of the fog lamp 1 of this embodiment of expression.
As shown in Figure 1, on the passenger car 100 of this embodiment, as headlight for automobile, be provided with headlight (driving headlamp, dipped headlights) 101 and fog lamp (anterior fog lamp) 1.In addition, fog lamp 1 is also referred to as supplementary driving lamp.
As shown in Figure 2, fog lamp 1 inserts in the recess 103 that is arranged on front bumper 102, is connected and installed by screw part 2 between the rear portion of the bottom of recess 103 and fog lamp 1.In addition, the mounting structure of fog lamp 1 is not limited thereto, and can suitably change according to vehicle specification etc.
Fig. 3 is the stereogram of the fog lamp 1 of this embodiment of expression.Fig. 4 is the three-dimensional exploded view of the fog lamp 1 of this embodiment of expression.Fig. 5 is the cutaway view of the fog lamp 1 of this embodiment of expression.Fig. 6 is the view sub-anatomy of the fog lamp 1 of this embodiment of expression.
As shown in the figure, the structure of fog lamp 1 is as follows, forms lamp house by lamp body 10, translucent cover 20 and back cover 30, and optical lighting system 40 is accommodated in this lamp house.
Back cover 30 is installed, to cover the other end side opening 12 of lamp body 10.Back cover 30 has fitting portion 31, and its inner face along the other end side opening 12 is chimeric.Back cover 30 is fixed on lamp body 10 by bonding, riveted joint or not shown screw part.The structure of back cover 30 is supporting optical illuminator 40.In addition, back cover 30 has the function as radiator, will be released into outside lamp house by the heat that optical lighting system 40 distributes.
Back cover 30 is formed by thermally conductive materials, and it conducts to lamp body 10 with at least part of heat that gives out from optical lighting system 40.In order to improve exothermic character, the back cover 30 of this embodiment is made of the aluminium after processing through black anodizing.Seal fully in lamp house, be formed with passage 32(with reference to Fig. 4 on back cover 30).According to said structure, the heat of LED module 43 is conducted to back cover 30, and to outside heat release.In addition, the heat on back cover 30 conducts on the larger lamp body 10 of surface area (heat release area), and heat release is to outside.The luminous efficiency Yin Wendu that therefore, can prevent LED41 rises and to cause reducing.
In addition, for not shown bunch of cables is directed in lamp house, form not shown through hole on any one in lamp body 10 and back cover 30; Described bunch of cables comprises feed cable that is electrically connected to optical lighting system 40 etc.
Fig. 7 is the figure of the directional property of expression LED.The directional property of LED shown in this figure is disclosed in non-patent literature (source: the rugged great work in mountain, energy-saving LED/EL Lighting Design introduction, Nikkan Kogyo Shimbun, 2010) in addition, in detail.
As shown in Figure 7, LED41 compares with existing electron tube (バ Le Block) (bulb), and the directive property of emergent light is high, and diffusivity is low.Particularly, be 0 degree if establish optical axis Ax(radiation angle) Relative light intensity intensity be 1, radiate angle so until during 30 degree left and right, can keep Relative light intensity intensity is 0.8.In addition, if the radiation angle surpasses 30 degree, Relative light intensity intensity sharply descends.
In addition, based on the above-mentioned directional property of LED41, beam direction cylinder 44 has the shape that aperture area increases towards light-emitting window 46 gradually from light inlet 45 (with reference to Fig. 4～Fig. 6).In addition, in this embodiment, in order to satisfy the rules (in order to eliminate the dazzle of car in opposite directions) of regulation, beam direction cylinder 44 possess except above direction on the shape of increase gradually.
Particularly, design beam direction cylinder 44, make it become the shape of both sides increase in the upper angular ranges with respect to optical axis Ax being ± 40 degree of left and right directions (vehicle-width direction), in addition, preferably, be designed at above-below direction (vehicle-height direction) upper with respect to optical axis Ax(horizontal plane) the below be the shape of increase in the scopes of 0 degree～40 degree.
Fig. 8 A is the A-A cutaway view of Fig. 6.Fig. 8 B is the B-B cutaway view of Fig. 6.
The configuration light inlet 45, make its illuminating part 41a(that is centered around LED41 with reference to Fig. 4) around.The illuminating part 41a of this embodiment arranges 4 rectangle light-emitting zones that face is luminous in the upper series connection of left and right directions (horizontal direction, vehicle-width direction).Therefore, as shown in Fig. 8 A, light inlet 45 has approximate rectangular shape.On the other hand, as shown in Fig. 8 B, light-emitting window 46 has the approximate trapezoid shape.Concentrate light by this trapezoidal shape, determine the field of illumination of fog lamp 1.
On the other hand, on the top of beam direction cylinder 44, internal thread part 54 is set, this internal thread part 54, is advanced and retreat with screw part 53 in the axial direction by the position of rotation adjustment.Screw part 53 free rotary ground supportings are on the through hole 34 that connects back cover 30.In addition, at the head opposition side of screw part 53, clip back cover 30 and be provided with not shown retaining device flange portion.According to said structure, by from the lamp house outside around axial any direction rotary screw parts 53, internal thread part 54 screw part 53 axially on advance and retreat.So, according to the position of internal thread part 54, beam direction cylinder 44 tilts at above-below direction take the fixed position of flat spring 51 as fulcrum.Thus, can adjust the position of light-emitting window 46.In addition, in the drawings, be configured to beam direction cylinder 44 and contact with LED module 43, but in fact, between is formed for adjusting the micro gap of position.
In addition, preferably adopt following structure, on the medial surface of beam direction cylinder 44, have mutual different reflectivity between the reflective surface 47 that is arranged on the top and the reflective surface 47 that is arranged on the below.According to such structure, the reverberation that can avoid 47 reflections of reflective surface up with below the reverberation of reflective surface 47 reflections produce polarization interference, to avoid producing striped in the field of illumination.As being used for making the different means of above-mentioned reflecting rate, can correspondingly change the surface treatment (for example, the surface treatment of overstriking top reflective surface 47) between top reflective surface 47 and below reflective surface 47.
Then, the effect that the fog lamp 1 by said structure is brought describes.
If to the LED41 power supply, illuminating part 41a face is luminous.Light by LED41 sends as shown in Figure 7, because directive property is high, therefore can around to rear side, all by light inlet 45, not be directed in beam direction cylinder 44 basically.Therefore due at least a portion of light inlet 45 and at least a portion overlay configuration on the bearing of trend of described optical axis Ax of light-emitting window 46, along the direct light of the light quantity maximum of optical axis Ax, derive from light-emitting window 46.In addition, because beam direction cylinder 44 has the shape that aperture area increases towards light-emitting window 46 gradually from light inlet 45, so large light of light quantity in the predetermined angular that optical axis Ax begins, can not bump with the medial surface of beam direction cylinder 44, reflect, and be derived by light-emitting window 46 as direct light.In addition, the light that the radiation angle is large, the light quantity of collision on beam direction cylinder 44 inner faces is little etc. are also reflected by reflective surface 47, are finally derived by light-emitting window 46.
Direct light and the reverberation of being derived by light-emitting window 46 pass through translucent cover 20, are incident upon the field of illumination of vehicle front regulation.Light-emitting window 46 possesses the shape of stipulating out fog lamp 1 field of illumination.Particularly, based on the rules of regulation, the opening shape of light-emitting window 46 has the trapezoidal shape that the top dwindles, the below enlarges.Therefore, according to the fog lamp 1 of this embodiment, can not give in opposite directions that car causes dazzle, can throw light on to vehicle front largo, can satisfy the rules of regulation.In addition, owing to being provided with the position adjusting mechanism 50 of adjusting light-emitting window 46 positions on fog lamp 1, therefore, even after being arranged on beam direction cylinder 44 in lamp house, also can rotate screw part 53 from the outside, direction of illumination is carried out inching.
In addition, because the optical lighting system of this embodiment 40 does not have lens, but replace with beam direction cylinder 44 is set, therefore can not cause light loss because seeing through lens.In addition, by the projection direct light, optical path length shortens, so the loss of light quantity is lacked than prior art.Further, by reflective surface 47, the light that LED41 can be sent is incident upon the field of illumination without loss.Therefore, can provide energy efficiency good and efficient fog lamp 1.
In addition, if improve energy efficiency, even change is designed to the LED41 of low output, also can realize therefore, helping the performance that requires stipulated to reduce costs.Further, if improve energy efficiency, also help the miniaturization of fog lamp 1.Miniaturization also can contribute to the free degree that increases vehicle layout in the free degree of Widening Design aspect.
In the optical design of optical lighting system 40, LED41 compares with existing electron tube type light source, owing to can reducing and concentrated light-emitting area, therefore can more easily stipulate out direction of illumination and range of exposures.
In addition, the simple shape of beam direction cylinder 44 does not need to calibrate as prior art focus, therefore configures the free degree high, easily change design.And the design of light-emitting window 46 shapes by change beam direction cylinder 44 can be adjusted direction of illumination, range of exposures, light quantity, therefore is easy to realize the performance that requires of stipulating.
Therefore, according to this embodiment, can not need carry out the optical design of complex lens, and the light distribution property of satisfy regulatory.Therefore, in this embodiment, can access optical design easily, can realize the regulation performance, and trial-production or duration of test is short, cost burden is also little fog lamp 1.
Abovely with reference to accompanying drawing, the suitable embodiment of the present invention is illustrated, but the present invention is not defined as above-mentioned embodiment.The various shapes of each component parts that represents in above-mentioned embodiment or combination etc. are examples, in the scope that does not depart from purport of the present invention, can carry out various changes based on designing requirement etc.
For example, in the above-described embodiment, illustrated that the opening shape of light-emitting window 46 is the trapezoidal shape as shown in Fig. 8 B, but the present invention is not limited to this structure, as long as satisfy the rules of regulation, can be also the structure as shown in Fig. 9 A～9E.
For example, as shown in Fig. 9 A, light-emitting window 46 can be also to compare with above-mentioned embodiment, dwindles above-below direction and the shape of direction expansion to the left and right.In addition, light-emitting window 46 can be also the shape similar to light inlet 45 as shown in Fig. 9 B.In addition, as shown in Fig. 9 C, light-emitting window 46 can be also in order to throw light on vehicle front nearby with the opening shape of Fig. 9 B below the shape that enlarges.In addition, light-emitting window 46 can be also the shape as shown in Fig. 9 D, and this shape is not want to make light to arrive in the situation of car in opposite directions, cuts that the shape of car side (road center side) in opposite directions forms.In addition, as shown in Fig. 9 E, light-emitting window 46 can be also to have minor face on above-below direction, have the rectangle on long limit on left and right directions.In addition, corresponding with Fig. 9 E, the shape of light inlet 45 can be also the rectangle similar to this rectangle.In addition, can be also to make above-mentioned rectangular bight be circular structure with curvature.
In addition, for example, in the above-described embodiment, illustrated beam direction cylinder 44 reflective surface 47 be shaped as shown in Figure 5 linearity, but the present invention is not limited to this structure.
For example, as shown in Figure 10 A, Figure 10 B, the reflective surface 47a by making upside and the reflective surface 47b of downside have the curvature of regulation, can control catoptrical range of scatter.This can say that the reflective surface 47 on the left and right side is also identical therewith.In addition, according to Figure 10 A, the reflective surface 47a of upside forms the shape that raises up, and the reflective surface of downside forms the shape to lower convexity.In addition, according to Figure 10 B, the reflective surface 47a of upside forms the shape that raises up, and the reflective surface of downside also forms the shape that raises up.
In addition, for example, in the above-described embodiment, the structure along horizontal plane direction setting optical axis Ax is illustrated, but the present invention is not limited to this structure.
For example, as shown in figure 11, the optical axis Ax of LED41 can be set towards the below along the horizontal plane direction also.According to this structure, be set in towards the below along the horizontal plane direction by the optical axis Ax with LED41, optical axis Ax is towards the road surface, and therefore the projection direct light can effectively utilize light quantity.Due to the directional property of LED shown in Figure 7, optical axis Ax is set in respect to the horizontal plane the angle in the scopes of below 0 degree～40 degree, better effects if.In addition, in the situation that an embodiment of the invention are applicable to fog lamp, under the rules that satisfy regulation, most preferably set optical axis Ax below in the angles of 2.5 degree.
In addition, for example, in the above-described embodiment, the front view of translucent cover 20 is illustrated for circular structure, but the present invention is not limited to this structure.Translucent cover 20 only is used for waterproof, dedusting, therefore can improve the aesthetics of outward appearance by forming following structure, is easy to personalization.
For example, as shown in figure 12, can make the shape of translucent cover 20 larger than lamp body 10, front view is oval.In addition, as shown in figure 13, also can make translucent cover 20 form the cover that tilts with angle, make the bend of its corresponding bumper etc.In addition, as shown in figure 14, also can form evaporation layer 22 in the inboard of translucent cover 20, make it gloss occur.In addition, this evaporation layer 22, its metal (for example indium) particle is configured in the inboard of translucent cover 20 with the island shape, can throw from the gap of this metallic particles the light of LED41.In addition, the shape consistent with the external diameter of round tubular lamp body 10 that can be also the external diameter that makes translucent cover 20.
In addition, for example, in the above-described embodiment, the almost whole photoconduction structures forwards that will be sent by LED41 by beam direction cylinder 44 have been described, but the present invention is not limited to this structure.If form the almost whole photoconduction structures forwards that to be sent by LED41 by beam direction cylinder 44, in front view, form almost unglazed state with zone (outside of beam direction cylinder 44) beyond light-emitting window 46 opposed zone.
Therefore, as shown in Figure 15 B, configuration light inlet 45 makes its and LED41 separate the gap, and light is spilt from this gap in right amount, and aesthetics and the highlighting of front view as shown in Figure 15 A, can be improved in the inside of illumination beam guide cylinder 44 not only, but also irradiation outside.
In addition, in Figure 15 A, with the power of deep or light expression light of point.
In addition, as shown in Figure 16 B, form the second light-emitting window 48 by the barrel at beam direction cylinder 44, described the second light-emitting window 48 is directed into inner light-output to outside with part by light inlet 45, thereby light is leaked to the outside energetically, also can improve aesthetics and the highlighting of front view.Further, if the fluorophor 23 of ring-type is set, can show simply the effect of ring-shaped lighting on translucent cover 20.In addition, also can be by adjusting the formation position of the second light-emitting window 48, with the light fluorophor 23 that leads energetically.
And, as shown in figure 17, also reflective surface 24 can be set further, with leaking to the light of beam direction cylinder 44 outsides, reflect energetically to fluorophor 23.
In addition, for example, as shown in figure 18, the shape of the design beam direction cylinder 44 of also can making an effort increases the light quantity towards the light of downside.Particularly, the bottom 60 in the end that disposes translucent cover 20 1 sides (light-emitting window 46 sides) of beam direction cylinder 44 has the notch geometry 61 that cuts out towards the other end that disposes LED41 one side (light inlet 45 sides) with predetermined distance.According to this structure, because the upside of beam direction cylinder 44 shortens relatively with respect to downside, therefore can limit the light towards upside, can also increase the light quantity towards the light of downside simultaneously, therefore can be more prone to adapt to the rules of regulation.
In addition, for example, as shown in figure 19, the position of design notch geometry 61 makes it satisfy the rules of regulation.Figure 19 is the upward view of beam direction cylinder 44.Particularly, reserve the compartment of terrain on the left and right directions that clips optical axis Ax this notch geometry 61 is set in pairs.In addition, the interval of notch geometry 61 is set as left and right directions and becomes ± 10 above angles of degree with respect to optical axis Ax.This is because the light quantity of the field of illumination in the angular range of the positive front lower place of restriction vehicle ± 10 degree is certain certain light quantity in rules.Therefore, according to this structure, can suppress the light quantity of the field of illumination of vehicle positive front lower place, increase simultaneously the light quantity of the field of illumination of left and right directions, satisfy the rules of regulation.
In addition, for example, in the above-described embodiment, the structure that the present invention is applicable to fog lamp 1 is illustrated, but the present invention is also applicable to other headlight for automobile, for example head lamp.
Industrial applicibility
According to the present invention, a kind of headlight for automobile can be provided, it easily carries out optical design, can realize stipulating performance, and the time of manufacturing experimently, testing is short, and cost burden is also little.Particularly, according to an embodiment of the invention, by being configured in the axial beam direction cylinder of light, the high light of directive property that guiding is sent from semiconductor light-emitting elements sees through the field of illumination that translucent cover is incident upon the vehicle front regulation.By beam direction cylinder regulation field of illumination.This beam direction barrel shape is simple, does not need to proofread and correct focus as prior art, so its configuration free degree is high, easily change design.And, can design the opening shape of beam direction cylinder by change, adjust direction of illumination, range of exposures, light quantity, therefore, can easily realize the performance that requires of stipulating.
Description of reference numerals
1 fog lamp (headlight for automobile)
10 lamp bodies
20 translucent covers
40 optical lighting systems
41 LED(semiconductor light-emitting elements)
44 beam direction cylinders
45 light inlets
46 light-emitting windows
47 reflective surfaces
48 second light-emitting windows
50 position adjusting mechanisms
60 bottoms
61 notch geometries.
Claims (12)
1. headlight for automobile, it possesses translucent cover, lamp body and optical lighting system; Described optical lighting system is accommodated in described lamp body, and light is incident upon the field of illumination of vehicle front regulation by described translucent cover, it is characterized in that,
Described optical lighting system possesses semiconductor light-emitting elements and beam direction cylinder; Set the optical axis of described semiconductor light-emitting elements towards described translucent cover; Described beam direction cylinder is arranged between described semiconductor light-emitting elements and described translucent cover, simultaneously around described optical axis, and stipulates out described field of illumination.
2. headlight for automobile as claimed in claim 1, is characterized in that, described beam direction cylinder possesses light inlet and light-emitting window, and described light inlet is arranged on and disposes described semiconductor light-emitting elements one side, and described light-emitting window is arranged on and disposes described translucent cover one side;
At least a portion of described light inlet and at least a portion of described light-emitting window overlay configuration on the bearing of trend of described optical axis.
3. headlight for automobile as claimed in claim 2, is characterized in that, described beam direction cylinder have aperture area except above direction on, the shape that increases gradually towards described light-emitting window from described light inlet.
4. headlight for automobile as claimed in claim 2 or claim 3, is characterized in that also possessing position adjusting mechanism, and it adjusts the position of described light-emitting window.
5. headlight for automobile as described in claim 1～4 any one, is characterized in that, the inner face side at described beam direction cylinder arranges reflective surface.
6. headlight for automobile as claimed in claim 5, is characterized in that, described reflective surface has curvature.
7. headlight for automobile as described in claim 5 or 6, is characterized in that, on the inner face side of described beam direction cylinder, is arranged on the described reflective surface of top and is arranged between the described reflective surface of below, has different light reflectivity mutually.
8. headlight for automobile as described in claim 1～7 any one, is characterized in that, the optical axis of described semiconductor light-emitting elements is set towards the below along the horizontal plane direction.
9. headlight for automobile as described in claim 1～8 any one, it is characterized in that, bottom in an end of described translucent cover one side of disposing of described beam direction cylinder has the notch geometry that cuts out towards the other end that disposes described semiconductor light-emitting elements one side with predetermined distance.
10. headlight for automobile as claimed in claim 9, is characterized in that, described notch geometry is clipping on the left and right directions of described optical axis, reserves the interval and arrange in pairs.
11. headlight for automobile as described in claim 1～10 any one is characterized in that, described beam direction cylinder possesses light inlet and light-emitting window, and described light inlet is arranged on and disposes described semiconductor light-emitting elements one side; Described light-emitting window is arranged on and disposes described translucent cover one side;
Configuring described light inlet makes between itself and described semiconductor light-emitting elements and leaves the gap.
12. headlight for automobile as described in claim 1～10 any one, it is characterized in that, described beam direction cylinder possesses light inlet and light-emitting window, and described light inlet is arranged on and disposes described semiconductor light-emitting elements one side, and described light-emitting window is arranged on and disposes described translucent cover one side;
Barrel at described beam direction cylinder forms the second light-emitting window, and it imports inner light-output to outside with part by described light inlet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010209502A JP2012064515A (en) | 2010-09-17 | 2010-09-17 | Vehicle headlamp |
| JP2010-209502 | 2010-09-17 | ||
| PCT/JP2011/071215 WO2012036266A1 (en) | 2010-09-17 | 2011-09-16 | Vehicle headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103140710A true CN103140710A (en) | 2013-06-05 |
Family
ID=45831719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800443080A Pending CN103140710A (en) | 2010-09-17 | 2011-09-16 | Vehicle headlamp |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2618046A1 (en) |
| JP (1) | JP2012064515A (en) |
| CN (1) | CN103140710A (en) |
| TW (1) | TW201221389A (en) |
| WO (1) | WO2012036266A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965731A (en) * | 2017-11-30 | 2018-04-27 | 马瑞利汽车零部件(芜湖)有限公司 | A kind of simple thin sheet of metal optical correction system |
| CN109253428A (en) * | 2013-08-23 | 2019-01-22 | 株式会社小糸制作所 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SI24073A (en) * | 2012-05-25 | 2013-11-29 | Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. | Fog light for motor vehicles with a light source based on led |
| TWI470917B (en) * | 2012-12-12 | 2015-01-21 | Upi Semiconductor Corp | Voltage regulation integrated circuit, voltage regulator circuit and method thereof |
| JP5975400B2 (en) * | 2013-01-17 | 2016-08-23 | パナソニックＩｐマネジメント株式会社 | lighting equipment |
| JP2015026533A (en) * | 2013-07-26 | 2015-02-05 | 株式会社クワガタ | Infrared floodlight projector |
| JP6307991B2 (en) * | 2014-04-02 | 2018-04-11 | 市光工業株式会社 | Vehicle lighting |
| JP2020085977A (en) * | 2018-11-17 | 2020-06-04 | アルパイン株式会社 | Display device |
| EP3680548A1 (en) * | 2019-01-09 | 2020-07-15 | ZKW Group GmbH | Reflector unit |
| JP7274144B2 (en) * | 2019-06-19 | 2023-05-16 | 日本フネン株式会社 | Lighting device for crosswalk and installation method of lighting device for crosswalk |
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| US20050094413A1 (en) * | 2003-11-04 | 2005-05-05 | Koito Manufacturing Co., Ltd. | Vehicular headlamp |
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| JP4627325B2 (en) * | 1998-06-16 | 2011-02-09 | スタンレー電気株式会社 | Automotive headlamps |
| JP4339156B2 (en) * | 2004-03-18 | 2009-10-07 | 株式会社小糸製作所 | Vehicle lamp unit |
| JP5152487B2 (en) * | 2007-11-29 | 2013-02-27 | スタンレー電気株式会社 | Vehicle headlamp |
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2010
- 2010-09-17 JP JP2010209502A patent/JP2012064515A/en active Pending
-
2011
- 2011-09-16 CN CN2011800443080A patent/CN103140710A/en active Pending
- 2011-09-16 EP EP11825264.2A patent/EP2618046A1/en not_active Withdrawn
- 2011-09-16 TW TW100133384A patent/TW201221389A/en unknown
- 2011-09-16 WO PCT/JP2011/071215 patent/WO2012036266A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004273353A (en) * | 2003-03-11 | 2004-09-30 | Koito Mfg Co Ltd | Vehicular lighting device |
| US20050094413A1 (en) * | 2003-11-04 | 2005-05-05 | Koito Manufacturing Co., Ltd. | Vehicular headlamp |
| CN101151490A (en) * | 2005-03-31 | 2008-03-26 | 电灯专利信托有限公司 | Motor vehicle headlight |
| JP2008282575A (en) * | 2007-05-08 | 2008-11-20 | Stanley Electric Co Ltd | Led lamp for head lamp light source |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109253428A (en) * | 2013-08-23 | 2019-01-22 | 株式会社小糸制作所 | Lighting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012036266A1 (en) | 2012-03-22 |
| TW201221389A (en) | 2012-06-01 |
| JP2012064515A (en) | 2012-03-29 |
| EP2618046A1 (en) | 2013-07-24 |
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Application publication date: 20130605 |