CN102338337A - Vehicle lamp - Google Patents
Vehicle lamp Download PDFInfo
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- CN102338337A CN102338337A CN2011102014626A CN201110201462A CN102338337A CN 102338337 A CN102338337 A CN 102338337A CN 2011102014626 A CN2011102014626 A CN 2011102014626A CN 201110201462 A CN201110201462 A CN 201110201462A CN 102338337 A CN102338337 A CN 102338337A
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- Prior art keywords
- light
- optical axis
- reflecting surface
- vehicle
- optically focused
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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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
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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
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
- F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas
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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
- F21S41/36—Combinations of two or more separate reflectors
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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
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
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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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
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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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
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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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
- F21S41/692—Shields, i.e. screens not creating an image meant to be projected
Abstract
The object of the present invention is to provide a vehicle lamp with relative high light beam utilization rate. The vehicle lamp implementing the above object comprises: a projection lens disposed on an optical axis extending in a front-rear direction of a vehicle; a pair of semiconductor light-emitting elements disposed on right, left sides of the optical axis; a reflector including a pair of left, right condensing reflection faces using the optical axis as the center, characterized in that: a horizontal cross section of the right condensing reflection face is formed by a part of a substantially elliptic shape having a first focal point on the right light-emitting element and a second focal point on a rear focal point of the projection lens and a horizontal cross section of the left condensing reflection face is formed by a part of a substantially elliptic shape having a first focal point on the left light-emitting element and a second focal point on the rear focal point of the projection lens, and an illumination axis of the right semiconductor light-emitting element directs to the right condensing reflection face and an illumination axis of the left semiconductor light-emitting element directs to the left condensing reflection face, such that light reflected on the right and left condensing reflection faces is projected forward along the optical axis via the projection lens.
Description
Technical field
The present invention relates to a kind of lamps apparatus for vehicle that will forwards shine, particularly a kind ofly can not produce dazzle and lamps apparatus for vehicle that identity is improved preceding driving or retrograde car from the light of light source.
Background technology
Be accompanied by the high brightnessization of semiconductor light-emitting elements (LED) in recent years, developed the lamps apparatus for vehicle that uses LED.In this lamps apparatus for vehicle; Patent documentation 1 has proposed a kind of lamps apparatus for vehicle; This lamps apparatus for vehicle can be corresponding with pedestrian, preceding driving, the having or not of car of driving in the wrong direction; Form a plurality of different irradiation zone of only shining vehicle front or vehicle side, so that can not produce dazzle to above-mentioned pedestrian, preceding driving, the car that drives in the wrong direction.Because the optically focused degree of LED is higher and its range of exposures is narrower, therefore in patent documentation 1, following proposal has been proposed, that is, the differ from one another LED in zone of a plurality of irradiations is set, through controlling lighting a lamp/turn off the light and forming a plurality of light distribution patterns of each LED.
Patent documentation 1: TOHKEMY 2007-179969 communique
Summary of the invention
The lamps apparatus for vehicle of patent documentation 1 record discloses a kind of structure of using 3 speculums, improves illumination to improve the light beam utilization rate.But in this structure, owing to, need the speculum of 3 different toward each other directions, the problem that therefore exists lamps apparatus for vehicle to maximize in order to form left side irradiation pattern, right side irradiation pattern, central illumination pattern respectively.Thus; If dwindle interval each other and make 3 mirror integralizations with the mode that each speculum is stacked, thereby make the lamps apparatus for vehicle miniaturization, then the reflecting surface area of speculum will reduce at this moment; The utilization rate of light beam reduces, and can't obtain sufficient illumination.
Therefore, the object of the present invention is to provide a kind of lamps apparatus for vehicle, it as light source, has higher light beam utilization rate with semiconductor light-emitting elements.
According to the present invention, to achieve these goals, following proposal is proposed:
(1) a kind of lamps apparatus for vehicle, it has:
Projecting lens, it is disposed on the upwardly extending optical axis in vehicle front and back;
A pair of semiconductor light-emitting elements, its across said optical axis and about the configuration; And
Speculum, it has with the pair of right and left optically focused reflecting surface of said optical axis as the center,
It is characterized in that,
The said optically focused reflecting surface of each of a pair of said speculum, its horizontal profile is ellipticity roughly, this ellipse with each self-corresponding said semiconductor light-emitting elements as the 1st focus, with the rear focus of said projecting lens as the 2nd focus,
A pair of said semiconductor light-emitting elements is configured to, and irradiation axis separately makes light along said optical axis direction front side irradiation towards each said optically focused reflecting surface of said speculum via said projecting lens.
(2) according to the lamps apparatus for vehicle of scheme 1, it is characterized in that, have:
Fixing shadow shield, it is configured on said speculum, from about the boundary of said optically focused reflecting surface extend along said optical axis; And
The movable light shield plate; It can switch to shading position and not shading position; This shading position is on the said optical axis Ax and near the said rear side focus at said projecting lens, will be from said optically focused reflecting surface to position that the part of the light of said projecting lens incident is blocked
Can form the light distribution patterns that makes light not be radiated at the place ahead middle body of said lamps apparatus for vehicle.
(3) according to the lamps apparatus for vehicle of scheme (1) or (2), it is characterized in that,
The exterior lateral area away from said optical axis on the said optically focused reflecting surface of said speculum forms diffusely reflecting surface, and this scattered reflection is reflected the side with the irradiation vehicle front in the face of light.
The effect of invention
According to lamps apparatus for vehicle involved in the present invention; Owing to have a pair of semiconductor light-emitting elements of ground configuration across about optical axis and the speculum that possesses the pair of right and left reflecting surface; Therefore a pair of semiconductor light-emitting elements is configured to each reflecting surface of irradiation axis orientating reflex mirror separately, can make the major part from the light of semiconductor light-emitting elements that is diffusion radially from irradiation axis be incident to speculum.Therefore, can utilize speculum to reflect efficiently, thereby the lamps apparatus for vehicle with higher light beam utilization rate can be provided from the light of semiconductor light-emitting elements emission.
Description of drawings
Fig. 1 is the summary profilograph of the related lamps apparatus for vehicle of embodiment of the present invention.
Fig. 2 is the profile that the movable light shield plate is not positioned near the II along Fig. 1-II line of the state of rear focus.
Fig. 3 is the profile that the movable light shield plate is positioned near the II along Fig. 1-II line of the state of rear focus.
Fig. 4 is the sketch map of the distance light of the related lamps apparatus for vehicle formation of expression embodiment of the present invention with light distribution patterns.
Fig. 5 be the related lamps apparatus for vehicle of expression embodiment of the present invention form catch up with the sketch map of distance light with light distribution patterns.
Fig. 6 is the sketch map of the 1st one-sided distance light of the related lamps apparatus for vehicle formation of expression embodiment of the present invention with light distribution patterns.
Fig. 7 is the sketch map of the 2nd one-sided distance light of the related lamps apparatus for vehicle formation of expression embodiment of the present invention with light distribution patterns.
The specific embodiment
Below, based on accompanying drawing, the preferred implementation of lamps apparatus for vehicle involved in the present invention is described.
<unitary construction of lamps apparatus for vehicle >
Fig. 1 is the profilograph of the related lamps apparatus for vehicle of this embodiment.As shown in Figure 1, the related lamps apparatus for vehicle 1 of this embodiment is a kind of headlight for automobile, and it has: the diffuser 2 of transparence; Lamp body 3; And lamp unit 10, it is contained in the lamp house that is formed by diffuser 2 and lamp body 3.
Lamps apparatus for vehicle 1 is the light fixture that is described below; Its optical axis Ax extends upward in the vehicle front and back, can the light from lamp unit 10 forwards be shone and switch distance light with light distribution patterns, catch up with distance light and use light distribution patterns with light distribution patterns, the 2nd one-sided distance light with light distribution patterns, the 1st one-sided distance light.
This lamp unit 10 is installed on the pedestal 5, and pedestal 5 is fixed on the framework 7.Rear at framework 7 is equipped with heat-sink units 8 such as heat emission fan, will be shed by the heat that LED 12L, 12R produce.Framework 7 is via correcting mechanism 9A, the smoothing 9B of mechanism and being supported on the lamp body 3; And utilize correcting mechanism 9A that the optical axis Ax of lamp unit 10 is adjusted to extension and fixing on the direction downward with respect to 0.5～0.6 ° of degree of horizontal direction; In addition; Utilize the smoothing 9B of mechanism to be installed on the lamp body, can be at this optical axis of vertical direction adjusted Ax.
Fig. 2 is the profile of the II-II line along Fig. 1.With reference to Fig. 2, LED 12L, 12R for example are the white light-emitting diodes that on substrate, forms the rectangle light-emitting area in 1 * 4mm four directions.Pair of LEDs 12L, 12R are disposed at the left and right sides of vehicle across optical axis Ax, and are configured to separately irradiation axis 12La, 12Ra towards optical axis Ax side and against each other.More precisely, LED 12L, 12R are configured to from state respect to one another, tilt a little to the rear of vehicle with the reflecting surface 21L of its irradiation axis 12La, 12Ra orientating reflex mirror 20, the mode of 21R.
Left and right sides optically focused reflecting surface 21La, 21Ra are ellipsoidal surface shape roughly; Its horizontal profile is respectively the part of oval EL, ER; Be configured to relative with left and right sides LED 12L, 12R; The 1st focus of this ellipse EL, ER is positioned on the light-emitting area of left and right sides LED 12L, 12R, and the 2nd focus is positioned on the rear focal point F of projecting lens 11.Therefore; Shown in light α 1 as shown in Figure 2, the α 2; From the left and right sides LED 12L that is positioned at the 1st focus, the light that 12R sends; Reflect and, be incident in the projecting lens 11 by left and right sides optically focused reflecting surface 21La, 21Ra respectively, project the light parallel with optical axis Ax to vehicle front through being positioned at the rear focal point F of the 2nd focus.
Left and right sides diffusely reflecting surface 21Lb, 21Rb are optically focused reflecting surface 21La from the left and right sides, 21Ra begins form mutually with the outside (opposition side of optical axis Ax) continuously, project reflecting surface towards the diffused light of vehicle side.In this embodiment; Shown in light α 3 as shown in Figure 2, the α 4; They penetrate in the following manner, that is, the diffusely reflecting surface 21Lb in left side will be from the light of the LED 12L in left side to the reflection of the right side of vehicle front; The diffusely reflecting surface 21Rb on right side will be from the light of the LED 12R on right side to the reflection of the left side of vehicle front, thereby to the right left side diffusion of vehicle front.In addition, this diffusely reflecting surface 21Lb, 21Rb are that roughly ellipticity, section form for the face of parabolic shape roughly etc. by section.
According to aforesaid the lamps apparatus for vehicle 1 that embodiment is related; Pair of LEDs 12L, 12R are configured to; Left and right sides reflecting surface 21L, the 21R of irradiation axis orientating reflex mirror 20 separately; As utilize side view shown in Figure 1 understands, form reflecting surface 21L, 21R with the mode that covers LED 12L, 12R.Therefore, can utilize speculum 20 reflection to be the major part from the light of LED 12L, 12R of radial diffusion, improve the utilization rate of light beam, thereby can realize brighter lamps apparatus for vehicle 1.
< light-blocking member >
The related lamps apparatus for vehicle 1 of this embodiment is as shown in Figure 1, also has light-blocking member 30, and this light-blocking member 30 has fixedly shadow shield 31 and movable light shield plate 32.Utilize Fig. 1 and Fig. 3 that this light-blocking member 30 at length is described.Fig. 3 is the figure that movable light shield plate 32 is positioned near the state the focal point F of rear in Fig. 2.
Fixedly shadow shield 31 is tabular light-blocking members, and it is configured to the left and right sides optically focused reflecting surface 21La from speculum 20, extend along optical axis Ax the boundary of 21Ra.In this embodiment, be the shadow shield that extends to the place ahead of rear focal point F from the boundary of optically focused reflecting surface 21La, 21Ra along optical axis Ax.
Be not positioned at movable light shield plate 32 under the state of shading position, in making LED 12L, 12R any one when lighting a lamp, fixedly shadow shield 31 blocks the catoptrical part from speculum 20, forms vertical "cut-off"line.That is, as shown in Figure 2, send and at light α 5, the α 6 near the regional reflex of optical axis center of optically focused reflecting surface 21Ra, 21La, the shadow shield 31 that is fixed blocks and do not penetrate to vehicle front from LED 12R, 12L.
Movable light shield plate 32 constitutes, and can switch to shading position and not shading position, and this shading position is on the optical axis Ax and near the focal point F of the rear of projecting lens 11, will be from speculum 20 to position that the part of the light of projecting lens 11 incidents is blocked.In addition, movable light shield plate 32 forms at the section of speculum 20 side openings and is the shape of コ word shape roughly, forms the extension that extends abreast with optical axis Ax in the right ends of movable light shield plate 32.Movable light shield plate 32 forms with the mode that extension surrounds the rear focus, suppresses reverberation from speculum 20 and spreads and throw to vehicle front.
With reference to Fig. 1, movable light shield plate 32 is positioned at pedestal 5 sides away from the rear focal point F usually the time, can utilize actuator 33 to move near the optical axis Ax side the focal point F of rear as required, and switch its position.Be positioned under the state away from pedestal 5 sides of rear focal point F at movable light shield plate 32, movable light shield plate 32 does not block by speculum 20 reflections and is incident to the light in the projecting lens 11.
If movable light shield plate 32 utilizes actuator 33 to move near the optical axis Ax side the focal point F of rear from being positioned at state away from pedestal 5 sides of rear focal point F, then as shown in Figure 3, movable light shield plate 32 is positioned near the rear focal point F on the optical axis Ax.Owing to utilize the optically focused reflecting surface 21La of speculum 20, the light of 21Ra reflection to pass through therefore under this state, to be blocked by movable light shield plate 32 near the focal point F of rear from the catoptrical part of left and right sides optically focused reflecting surface 21La, 21Ra.Therefore, if movable light shield plate 32 is positioned near the focal point F of rear, the light that then shines the central authorities of vehicle front is blocked.In addition, as actuator 33, can use the known actuators such as actuator that have feed screw mechanism and drive the motor of this mechanism.
In addition, also can append reflecting surface 32a in two sides formation of movable light shield plate 32.Since can utilize this append reflecting surface 32a will not be reflected mirror 20 reflection and from LED 12L, 12R directly towards the part reflection of the light of vehicle front; Throw to vehicle front via projecting lens 11; Therefore, append reflecting surface 32a through formation and improve light utilization efficiency.
< light distribution patterns >
Below, use Fig. 4～7, the light distribution patterns that can form the lamps apparatus for vehicle 1 of this embodiment (distance light with light distribution patterns, the 1 2nd one-sided distance light with light distribution patterns, catch up with distance light and use light distribution patterns) describe.In addition, the figure of the light distribution patterns that the irradiates light by lamps apparatus for vehicle 1 forms can be represented in Fig. 4～7th with having an X-rayed on the imaginary vertical screen that is positioned at 25m place, the place ahead.In addition in the drawings, V-V representes vertical direction, and H-H representes horizontal direction.
Under the situation in the wide zone of vehicle front when Fig. 4 is illustrated in and hopes that the irradiation vehicle goes usually effectively distance light use light distribution patterns.This distance light is as shown in Figure 2 with light distribution patterns, can light a lamp through two LED 12L, 12R about making, and make the movable light shield plate 32 of light-blocking member 30 be positioned at pedestal 5 sides, so that do not block from the reverberation of speculum 20 and form.From the reverberation α 1 of left and right sides optically focused reflecting surface 21La, 21Ra, the central authorities that α 2 is incident upon vehicle front; And form irradiation area A1, A2 in the central authorities of vehicle front; Reverberation α 3, α 4 from diffusely reflecting surface 21Lb, 21Rb are incident upon the left and right sides of vehicle front, and form irradiation area A3, A4 respectively on the left side and the right side of vehicle front.As noted above, form above-mentioned irradiation area A1～A4, the wide zone of irradiation vehicle front at distance light in light distribution patterns.
Fig. 5 effectively catches up with distance light to use light distribution patterns under the situation that vehicle front has the car that moves ahead to go.This catches up with distance light and can as shown in Figure 3ly light a lamp through two LED 12L, 12R about making with light distribution patterns, and the movable light shield plate 32 of light-blocking member 30 is positioned near the focal point F of rear realize.
Specifically; As shown in Figure 3; Through LED 12L, 12R send, utilize the part of the light of left and right sides optically focused reflecting surface 21La, 21Ra reflection from the left and right sides; Be positioned near the movable light shield plate 32 of rear focal point F and block, thereby irradiation area A1a, the A2a of the middle body of vehicle front are not shone in formation.In addition, LED 12L, 12R send, utilize left and right sides diffusely reflecting surface 21Lb, 21Rb light α 3, the α 4 of left side reflection to the right respectively from the left and right sides, are not blocked and throw by movable light shield plate 32, at left and right sides formation irradiation area A3, the A4 of vehicle front.
Therefore, as shown in Figure 5 at vehicle front, the distance light that catches up with that is formed the central authorities of only not shining vehicle front by irradiation area A1a, A2a, A3, A4 is used light distribution patterns.Catch up with distance light according to this and use light distribution patterns, can not produce dazzle, the identity of this car is improved the preceding driving of going in the central authorities of vehicle front.
Fig. 6 is illustrated in the vehicle front car that moves ahead and goes, and the effective the 1st one-sided distance light is used light distribution patterns during the right side of retrograde car through vehicle front.The 1st one-sided distance light can be as shown in Figure 3 be positioned near the focal point F of rear through the movable light shield plate 32 that makes light-blocking member 30 with light distribution patterns, and makes left side LED 12L not light a lamp, only make right side LED 12R to light a lamp and realize.
Specifically; With reference to Fig. 3; LED 12R sends, utilizes the part of the light of right side optically focused reflecting surface 21Ra reflection from the right side; Be positioned near the movable light shield plate 32 of rear focal point F and block, thus a part of having blocked the light that throws to the central authorities of vehicle front, and the irradiation area A1b of the middle body of vehicle front is not shone in formation.In addition, LED 12R sends, utilizes the light α 4 of right side diffusely reflecting surface 21Rb reflection not to be blocked and throws from the right side, forms the irradiation area A4 in vehicle front left side.
Therefore, as shown in Figure 6 at vehicle front, form the 1st one-sided distance light that only shines the vehicle front left side by irradiation area A1b, A4 and use light distribution patterns.Use light distribution patterns according to the 1st one-sided distance light, the retrograde car that can not reach through the vehicle front right side the preceding driving of vehicle front produces dazzle, and the place ahead identity of this car is improved.
Fig. 7 is illustrated in the right side of retrograde car through vehicle front, and the effective the 2nd one-sided distance light is used light distribution patterns when the unmatched driving of vehicle front is gone.The 2nd one-sided distance light can be as shown in Figure 2 through not being positioned under the state of shading position at the movable light shield plate 32 that makes light-blocking member 30 with light distribution patterns, right side LED 12R is lit a lamp and realizes.
Specifically,, right side LED 12R is lit a lamp, and make the movable light shield plate 32 of light-blocking member 30 be positioned at pedestal 5 sides, so that do not block reverberation from speculum 20 with reference to Fig. 2.Be incident upon the central authorities of vehicle front from the reverberation α 1 of right side optically focused reflecting surface 21Ra; Central authorities at vehicle front form irradiation area A1; Be incident upon the left side of vehicle front from the reverberation α 4 of diffusely reflecting surface 21Rb, form irradiation area A4 in the left side of vehicle front.At this moment because fixedly shadow shield 31 will utilize the light near the regional reflex of the optical axis center of optically focused reflecting surface 21Ra, 21La to block, therefore, the 2nd one-sided distance light with light distribution patterns in formation vertical "cut-off"line VCL shown in Figure 7.
Therefore, as shown in Figure 7 at vehicle front, form irradiation by irradiation area A1, A4 and use light distribution patterns from the 2nd one-sided distance light in the wide zone, left side of vehicle front central authorities beginning.Use light distribution patterns according to the 2nd one-sided distance light, can not produce dazzle, the place ahead identity of this car is improved retrograde car through the vehicle front right side.
As above state bright shown in; The lamps apparatus for vehicle 1 related according to this embodiment; Through pair of LEDs 12L, 12R being configured to make left and right sides reflecting surface 21L, the 21R of irradiation axis orientating reflex mirror 20 separately; Thereby can improve the utilization rate of light beam; And can utilize light-blocking member 30 to form a plurality of light distribution patterns through constituting, can form lamps apparatus for vehicle thus, can realize to form the lamps apparatus for vehicle 1 of the light distribution patterns of a plurality of high illumination simultaneously with the incorporate small mirrors of left and right sides reflecting surface with fixing shadow shield 31 and movable light shield plate 32.
In addition; In the above-described embodiment; Left and right sides diffusely reflecting surface 21Lb, 21Rb have been described as light that will LED 12L, 12R inject from the left and right sides situation of the face of reflection in the opposite direction respectively, but each diffusely reflecting surface 21Lb, 21Rb also can be used as the face of both direction reflection to the left and right.If constitute like this, then can form the light distribution patterns that shines wider scope equably.
Claims (3)
1. lamps apparatus for vehicle, it has:
Projecting lens, it is disposed on the upwardly extending optical axis in vehicle front and back;
A pair of semiconductor light-emitting elements, its across said optical axis and about the configuration; And
Speculum, it has with the pair of right and left optically focused reflecting surface of said optical axis as the center,
It is characterized in that,
The said optically focused reflecting surface of each of a pair of said speculum, its horizontal profile is ellipticity roughly, this ellipse with each self-corresponding said semiconductor light-emitting elements as the 1st focus, with the rear focus of said projecting lens as the 2nd focus,
A pair of said semiconductor light-emitting elements is configured to, and irradiation axis separately makes light along said optical axis direction front side irradiation towards each said optically focused reflecting surface of said speculum via said projecting lens.
2. lamps apparatus for vehicle according to claim 1 is characterized in that having:
Fixing shadow shield, it is configured on said speculum, from about the boundary of said optically focused reflecting surface extend along said optical axis; And
The movable light shield plate; It can switch to shading position and not shading position; This shading position is on the said optical axis Ax and near the said rear side focus at said projecting lens, will be from said optically focused reflecting surface to position that the part of the light of said projecting lens incident is blocked
Can form the light distribution patterns that makes light not be radiated at the place ahead middle body of said lamps apparatus for vehicle.
3. lamps apparatus for vehicle according to claim 1 and 2 is characterized in that,
The exterior lateral area away from said optical axis on the said optically focused reflecting surface of said speculum forms diffusely reflecting surface, and this scattered reflection is reflected the side with the irradiation vehicle front in the face of light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-162008 | 2010-07-16 | ||
| JP2010162008A JP5592183B2 (en) | 2010-07-16 | 2010-07-16 | Vehicle lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102338337A true CN102338337A (en) | 2012-02-01 |
| CN102338337B CN102338337B (en) | 2016-11-09 |
Family
ID=44582208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110201462.6A Active CN102338337B (en) | 2010-07-16 | 2011-07-15 | Lamps apparatus for vehicle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2407710B1 (en) |
| JP (1) | JP5592183B2 (en) |
| CN (1) | CN102338337B (en) |
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| CN104303080A (en) * | 2012-05-15 | 2015-01-21 | 博士光学欧洲股份公司 | Method for producing a headlamp lens, headlamp lens |
| CN104819422A (en) * | 2014-02-05 | 2015-08-05 | 株式会社小糸制作所 | Vehicle lamp |
| CN105782846A (en) * | 2016-03-28 | 2016-07-20 | 广州维思车用部件有限公司 | LED automobile lighting device, LED automobile headlamp and light emitting method of LED automobile lighting device |
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| FR2982929B1 (en) * | 2011-11-22 | 2014-01-17 | Valeo Vision | LIGHT EMITTING DEVICE FOR MOTOR VEHICLE PROJECTOR |
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| CN108302484A (en) * | 2014-03-14 | 2018-07-20 | 王正 | Vehicle lamp structure and its Lam-cup structure |
| CN105782846B (en) * | 2016-03-28 | 2020-01-14 | 广州维思车用部件有限公司 | LED vehicle lighting device, LED vehicle headlamp and light emitting method of LED vehicle lighting device |
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| CN109915783A (en) * | 2017-11-10 | 2019-06-21 | 株式会社小糸制作所 | Rendered image drawing apparatus |
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| CN109668111A (en) * | 2019-02-14 | 2019-04-23 | 华域视觉科技(上海)有限公司 | Automobile-used dipped headlight and automobile comprising it |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012022988A (en) | 2012-02-02 |
| EP2407710A3 (en) | 2017-11-29 |
| EP2407710B1 (en) | 2019-04-10 |
| CN102338337B (en) | 2016-11-09 |
| JP5592183B2 (en) | 2014-09-17 |
| EP2407710A2 (en) | 2012-01-18 |
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