CN104279485A - Lamp used for vehicle - Google Patents

Lamp used for vehicle Download PDF

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Publication number
CN104279485A
CN104279485A CN201410322886.1A CN201410322886A CN104279485A CN 104279485 A CN104279485 A CN 104279485A CN 201410322886 A CN201410322886 A CN 201410322886A CN 104279485 A CN104279485 A CN 104279485A
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CN
China
Prior art keywords
light
distribution patterns
optics
light source
light distribution
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.)
Granted
Application number
CN201410322886.1A
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Chinese (zh)
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CN104279485B (en
Inventor
八木隆之
山村聪志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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Filing date
Publication date
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Publication of CN104279485A publication Critical patent/CN104279485A/en
Application granted granted Critical
Publication of CN104279485B publication Critical patent/CN104279485B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
    • 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
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
    • 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
    • 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
    • F21S41/16—Laser light sources
    • 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
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • 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
    • F21S41/18—Combination of light sources of different types or shapes
    • 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
    • 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
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/05—Special features for controlling or switching of the light beam
    • B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/12—Steering parameters
    • B60Q2300/122—Steering angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/32—Road surface or travel path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body

Abstract

The present invention relates to a lamp used for a vehicle, comprising: a light source (10); a light distribution pattern forming part (30) formed by arranging a plurality of optical elements; and an optical component (20) which irradiates light of the light source to the light distribution pattern forming part (30). The optical component (20) iirradiates light of the light source to the light distribution pattern forming part (30), so that specific illuminance distribution comprising a first illuminance region (R1) and a second illuminance region (R2) having lower illuminance is formed. The light distribution pattern forming part (30) utilizes the optical elements which are overlapped with the first illuminance region (R1) to irradiate the lights used for forming a specific first light distribution pattern, and utilizes the optical elements which are overlapped with the second illuminance region (R2) to irradiate the lights used for forming a second light distribution pattern having lower illuminance, or enables the optical elements which are overlapped with the second illuminance region to be in a non-irradiating state.

Description

Lamps apparatus for vehicle
Technical field
The present invention relates to a kind of lamps apparatus for vehicle.
Background technology
Japanese Patent Application No.2008-143510 (JP 2008-143510A) describes a kind of self adaptation light distributing system, this self adaptation light distributing system is comprised light source, is controlled MEMS (MEMS) mirror of luminous intensity distribution and light collecting lens by reflection from the light of light source.This self adaptation light distributing system forms the light distribution patterns of expectation by the Open-Close operation performing each micro mirror in multiple micro mirrors of MEMS mirror.
In the common lamps apparatus for vehicle comprising MEMS mirror, the light with roughly uniform brightness is irradiated to micro mirror array, light is reflected towards the front of light fixture by the micro mirror being in open state, and light is reflected towards light absorbing material by the micro mirror being in off status, form the light distribution patterns expected by this in the front of light fixture.According to this technology, the flexibility forming light distribution patterns can be strengthened, but in light utilization efficiency, there is room for improvement in this lamps apparatus for vehicle.
Summary of the invention
The invention provides the lamps apparatus for vehicle of the light utilization efficiency that can improve in lamps apparatus for vehicle.
A first aspect of the present invention relates to a kind of lamps apparatus for vehicle, and described lamps apparatus for vehicle comprises: light source; The light distribution patterns forming portion formed by arranging multiple optical element, wherein each optical element can both switch between at least one in irradiating state and non-irradiated state and dimming condition, the light source light sent by described light source under described irradiating state is irradiated towards the front of described light fixture, under described non-irradiated state, described light source light is not irradiated towards the front of described light fixture, and the amount that described light source light is irradiated towards the front of described light fixture under described dimming condition is than little under described irradiating state; And optics, described optics irradiates described light source light to described light distribution patterns forming portion.Described optics irradiates described light source light to described light distribution patterns forming portion, to make the specific Illumination Distribution forming the second illumination region comprising the first illumination region and have the illumination lower than the illumination in described first illumination region in described light distribution patterns forming portion.Described light distribution patterns forming portion utilizes the described optical element overlapping with described first illumination region to irradiate light for the formation of specific first light distribution patterns towards the front of described light fixture.In addition, described light distribution patterns forming portion utilizes the described optical element overlapping with described second illumination region to irradiate light for the formation of second light distribution patterns with the illumination lower than the illumination of described first light distribution patterns towards the front of described light fixture, or makes the described optical element overlapping with described second illumination region be in described non-irradiated state.According to this aspect, the light utilization efficiency in lamps apparatus for vehicle can be improved.
Described light distribution patterns forming portion can make being in described irradiating state at least partially and making all the other optical elements overlapping with described first illumination region be in described non-irradiated state, forming described specific first light distribution patterns of the described optical element overlapping with described first illumination region.Described lamps apparatus for vehicle also can comprise optics displaced portions, and described optics displaced portions to be shifted the displacement of at least one in described light distribution patterns forming portion making in described first illumination region and described second illumination region by making described optics.Therefore, the visuality of driver can be improved.In addition, described light source can comprise the first light source and secondary light source, described first light source is emitted in the light described light distribution patterns forming portion being formed described first illumination region, and described secondary light source is emitted in the light described light distribution patterns forming portion being formed described second illumination region; And described light distribution patterns forming portion can utilize the described optical element overlapping with described first illumination region to form described first light distribution patterns, and the described optical element overlapping with described second illumination region is utilized to form described second light distribution patterns.Therefore, more easily Illumination Distribution can be formed in light distribution patterns forming portion.
Described optics can comprise the first optics and the second optics, described first optics irradiates the light of described first light source to described light distribution patterns forming portion, and described second optics irradiates the light of described secondary light source to described light distribution patterns forming portion.In this case, described lamps apparatus for vehicle also can comprise at least one in the first optics displaced portions and the second optics displaced portions, described first optics displaced portions makes the displacement of described first illumination region in described light distribution patterns forming portion by making described first optics displacement, and described second optics displaced portions makes the displacement of described second illumination region in described light distribution patterns forming portion by making described second optics displacement.In addition, by described first optics displaced portions and described second optics displaced portions, the position in the position in described first illumination region and described second illumination region is shifted independently of one another.Therefore, the quantity of the type of the light distribution patterns that can be formed can be increased.In addition, described light source can comprise red laser light source, green laser light source and blue laser light source, and the emissive porwer of each described LASER Light Source can regulate independently of one another.Therefore, can improve light distribution patterns highlighting and therefore light distribution patterns visuality improve.
A second aspect of the present invention relates to a kind of lamps apparatus for vehicle, and described lamps apparatus for vehicle comprises: light source; The light distribution patterns forming portion formed by arranging multiple optical element, wherein each optical element can both switch between at least one in irradiating state and non-irradiated state and dimming condition, the light source light sent by described light source under described irradiating state is irradiated towards the front of described light fixture, under described non-irradiated state, described light source light is not irradiated towards the front of described light fixture, and the amount that described light source light is irradiated towards the front of described light fixture under described dimming condition is than little under described irradiating state; Optics, described optics irradiates described light source light to described light distribution patterns forming portion; With optics displaced portions, described optics displaced portions makes the optical axis of described optics be shifted.Described optics can have reflecting surface, and described optics displaced portions can make described reflecting surface be shifted.Equally, according to this aspect, the light utilization efficiency in lamps apparatus for vehicle can be improved.
According to the present invention, provide the lamps apparatus for vehicle of the light utilization efficiency that can improve in lamps apparatus for vehicle.
Accompanying drawing explanation
The feature of exemplary embodiment of the present invention, advantage and technology and industrial significance are described below with reference to accompanying drawings, and Reference numeral similar in the accompanying drawings represents similar key element, and wherein:
Fig. 1 is the vertical sectional view of the schematic structure of the lamps apparatus for vehicle illustrated according to the first embodiment;
Fig. 2 is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the first embodiment;
Fig. 3 is the sectional view of the schematic structure that light source is shown;
Fig. 4 A and 4B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the first embodiment;
Fig. 5 A and 5B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the first embodiment;
Fig. 6 A to 8B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the first embodiment;
Fig. 9 is the vertical sectional view of the internal structure of the lamps apparatus for vehicle schematically shown according to the second embodiment;
Figure 10 is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the second embodiment;
Figure 11 A and 11B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the second embodiment;
Figure 12 A and 12B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the second embodiment; And
Figure 13 A is the vertical sectional view of the internal structure of the lamps apparatus for vehicle schematically shown according to the 3rd embodiment, and Figure 13 B is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the 3rd embodiment.
Detailed description of the invention
Hereinafter, based on embodiment, the present invention is described with reference to the accompanying drawings.Same or equivalent component shown in the drawings, parts and process are represented by identical Reference numeral and will suitably omit its repeat specification.In addition, embodiment does not limit the scope of the invention, and is illustrative.The all characteristic sum combinations illustrated in embodiment are not necessarily requisite for the purpose of the present invention.
(the first embodiment)
Fig. 1 is the vertical sectional view of the schematic structure of the lamps apparatus for vehicle illustrated according to the first embodiment.Fig. 2 is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the first embodiment.There is left and right be configured in the vehicle headlamp apparatus of a pair headlamp of vehicle front according to the lamps apparatus for vehicle 1 of the present embodiment.Except the structure of headlamp is each other except mirror image, headlamp has roughly the same structure, and therefore Fig. 1 illustrates that a headlamp in headlamp is as lamps apparatus for vehicle 1.
Lamps apparatus for vehicle 1 is included in vehicle front side to be had the lamp body 2 of opening portion and is mounted to the transparent cover 4 of the opening portion covering lamp body 2.Transparent cover 4 is formed by light-transmissive resin or glass.Light source 10, optics 20, light distribution patterns forming portion 30, optics displaced portions 40 and projecting lens 50 are accommodated in the lamp house 3 formed by lamp body 2 and transparent cover 4.Each component utilizes unshowned supporting device to be arranged on lamp body 2.
The light source 10 of the present embodiment is made up of the laser device of such as laser diode, solid-state laser or gas laser.Laser has high briliancy and high directivity, and therefore can be conducive to by forming light source 10 by laser device and form Illumination Distribution described later in light distribution patterns forming portion 30.Fig. 3 is the sectional view of the schematic structure that light source is shown.As shown in Figure 3, light source 10 has blue laser light source 102, green laser light source 104, red laser light source 106, radiator 110, first lens 112, second lens 114, the 3rd lens 116, light integrator 120 and light collecting portion 200.In figure 3, the blue laser light source 102, green laser light source 104 and the red laser light source 106 that form by laser diode are exemplarily illustrated.
Blue laser light source 102 sends blue laser B, and green laser light source 104 sends green laser G, and red laser light source 106 sends red laser R.Blue laser light source 102, green laser light source 104 and red laser light source 106 are installed on the same substrate.Radiator 110 is connected with the back side of this substrate.Each in first lens 112, second lens 114 and the 3rd lens 116 is all made up of such as collimation lens.Blue laser B is transformed to directional light by the first lens 112, and green laser G is transformed to directional light by the second lens 114, and red laser R is transformed to directional light by the 3rd lens 116.
They are guided blue laser B, green laser G into light integrator 120 together with the red laser R constriction by light collecting portion 200.Light collecting portion 200 has the first dichronic mirror 202, second dichronic mirror 204 and the 3rd dichronic mirror 206.First dichronic mirror 202 is towards light integrator 120 reflection blue laser B.Second dichronic mirror 204 towards light integrator 120 reflection green laser G, and allows blue laser B through the second dichronic mirror 204.3rd dichronic mirror 206 towards light integrator 120 reflection Red laser R, and allows blue laser B and green laser G through the 3rd dichronic mirror 206.Blue laser B, green laser G and red laser R are by together with light collecting portion 200 constriction, and the RGB laser of bunchy is advanced towards light integrator 120.Light integrator 120 is entrenched in the opening 101 in the housing being arranged at light source 10.Blue laser B, green laser G and red laser R are mixed by light integrator 120 and homogenize, and produce white laser W thus.White laser W advances from light integrator 120 towards optics 20.
The emissive porwer of blue laser light source 102, green laser light source 104 and red laser light source 106 can regulate independently of one another.Therefore, lamps apparatus for vehicle 1 can towards the laser of the front light period observation of complexion of light fixture.By changing the color of the light source light forming light distribution patterns according to the type of the light distribution patterns that will be formed, driver identifies that light distribution patterns becomes easy visually.That is, the highlighting of light distribution patterns can be strengthened and remind driver.
Optics 20 is the parts for irradiating the light source light sent from light source 10 to light distribution patterns forming portion 30.The lamps apparatus for vehicle 1 of the present embodiment comprises two optics 20A and 20B.Each in optics 20A and 20B is all made up of such as level crossing.Position relationship between optics 20A and 20B is determined to be and makes optics 20A reflect the light sent from light source 10 towards optics 20B, and optics 20B irradiates the light reflected by optics 20A to light distribution patterns forming portion 30.
Optics displaced portions 40 is the parts for making optics 20A and 20B be shifted.The optics displaced portions 40 being arranged at optics 20A makes the reflecting surface of optics 20A be shifted, and is shifted along the above-below direction (such as, vertical direction) of light fixture to make the light irradiated to light distribution patterns forming portion 30.The optics displaced portions 40 being arranged at optics 20B makes the reflecting surface of optics 20B be shifted, and is shifted along the left and right directions (such as, horizontal direction) of light fixture to make the light irradiated to light distribution patterns forming portion 30.The actuator that optics displaced portions 40 can such as be swung by the optics 20 making to be supported by pivot of the pivot of supporting optical parts 20 and such as stepper motor etc. is formed.Note, the one in optics 20A and optics 20B can be only set.In this case, optics displaced portions 40 makes optics be shifted into make the light that irradiates to light distribution patterns forming portion 30 along the above-below direction of light fixture and left and right directions displacement.
Light distribution patterns forming portion 30 is consisted of the multiple optical element of arrangement.Switch between at least one in the state (being suitably called hereinafter " irradiating state ") that each optical element of light distribution patterns forming portion 30 can both irradiate towards the front of light fixture in the light source light sent by light source and the state (being suitably called hereinafter " non-irradiated state ") that the light source light sent by light source is not irradiated towards the front of light fixture and dimming condition, the amount that light source light is irradiated towards the front of light fixture under described dimming condition is than little under irradiating state.The light distribution patterns forming portion 30 of the present embodiment is made up of MEMS lens array.The structure of MEMS lens array is well-known, and therefore by description is omitted.Switch between the irradiating state that light distribution patterns forming portion 30 reflects towards the front of light fixture at the light irradiated to light distribution patterns forming portion 30 by switching between the break-make of the power supply to each micro mirror as optical element and the non-irradiated state that light reflects towards light absorbing material.The light reflected towards the front of light fixture by micro mirror under irradiating state enters in the projecting lens 50 in the front being configured in light distribution patterns forming portion 30.Note, time time per unit light source light can irradiated towards the front of light fixture by micro mirror the longest state is defined as irradiating state, the state that this time second is grown can be defined as dimming condition, and the state of this shortest time can be defined as non-irradiated state.In this case, each micro mirror of MEMS lens array can be in irradiating state, dimming condition and non-irradiated state.
Such as by have all in the front surface of free form surface shape and the projecting lens 50 that formed of the free-form surface lens of rear surface the light source image on the back focal plane being formed in the rear focus comprising projecting lens 50 is projected on the virtual vertical screen in the front being positioned at light fixture as reverse image.Projecting lens 50 is arranged so that on the optical axis that its rear focus is positioned at lamps apparatus for vehicle 1 and near the light emitting surface (reflecting surface of micro mirror array) of light distribution patterns forming portion 30.
The light sent from light source 10 is reflected by optics 20A and 20B, and irradiates to the micro mirror array of light distribution patterns forming portion 30.At this, light source light is that distribution form is irradiated in light distribution patterns forming portion 30.Therefore, as shown in Figure 2, in light distribution patterns forming portion 30, the specific Illumination Distribution of the second illumination region R2 comprising the first illumination region R1 and there is the illumination lower than the first illumination region R1 is formed.In the present embodiment, the first illumination region R1 is the region that light source light is irradiated to it, and the second illumination region R2 is that light source light is not substantially to the region that it irradiates.Such as, the first illumination region R1 and the second illumination region R2 is formed in the following manner.That is the light harvesting degree (diffusance) of light source light is regulated to prevent light source light from spreading by the first lens 112, second lens 114 of light source 10, the 3rd lens 116, light integrator 120 and light collecting portion 200 and optics 20A and/or optics 20B and whole surface to the micro mirror array of light distribution patterns forming portion 30 is irradiated.Therefore, light source light is irradiated partly to light distribution patterns forming portion 30, and forms the first illumination region R1 and the second illumination region R2.
Subsequently, the light for the formation of specific light distribution patterns is irradiated in the front of micro mirror light fixture tomorrow that light distribution patterns forming portion 30 utilization is overlapping with the first illumination region R1.The micro mirror overlapping with the second illumination region R2 is in non-irradiated state.At this, light distribution patterns forming portion 30 can make a part for the micro mirror overlapping with the first illumination region R1 be in irradiating state to irradiate the light for the formation of light distribution patterns towards the front of light fixture, and make all the other micro mirrors overlapping with the first illumination region R1 be in non-irradiated state, to form specific light distribution patterns shape thus.The light distribution patterns formed by lamps apparatus for vehicle 1 will be described in detail after a while.
The Open-Close operation of each micro mirror of the adjustment of the emissive porwer of each LASER Light Source of light source 10, the driving of optics displaced portions 40 and light distribution patterns forming portion 30 is performed by control part 300.Control part 300 as hardware configuration by the CPU of such as computer and the element of memory and circuit realiration, and as software configuration by realizations such as computer programs.Note, although control part 300 is arranged on the outside of lamp house 3 in FIG, control part 300 also can be arranged in lamp house 3.Control part 300 is from Received signal strength such as the image processing apparatus 310 be connected with image pick-up device 312, rotation direction sensor 320, navigation system 330 and unshowned lamp switches.Various control signal is transferred to light source 10, light distribution patterns forming portion 30 and optics displaced portions 40 according to received signal by control part 300.
Next, the shape of the method being used for forming light distribution patterns by lamps apparatus for vehicle 1 and the light distribution patterns formed will be described.Fig. 4 A, 4B, 5A and 5B illustrate the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the first embodiment.Respectively illustrating in Fig. 4 A to 5B is formed in the light distribution patterns on the virtual vertical screen of the ad-hoc location (position as light fixture front 25m) being configured at light fixture front.
As shown in Figure 2, the first illumination region R1 of substantially elliptical is formed in light distribution patterns forming portion 30.Micro mirror overlapping on the first illumination region R1 is in irradiating state, and the light forming the first illumination region R1 irradiates via the front of projecting lens 50 towards light fixture.Therefore, as shown in Figure 4 A, the distance light light distribution patterns PH of substantially elliptical is formed.That is the first illumination region R1 is substantially similar each other with distance light light distribution patterns PH.Light distribution patterns forming portion 30 is in by making the micro mirror be positioned on circumference among the micro mirror overlapping with the first illumination region R1 the process that non-irradiated state performs the clear-cut making distance light light distribution patterns PH.The shape of distance light light distribution patterns PH is known, and therefore by description is omitted.
In addition, lamps apparatus for vehicle 1 can make a part for the micro mirror overlapping with the first illumination region R1 be in irradiating state and make all the other micro mirrors be in non-irradiated state, to form the light distribution patterns in intended shape thus.Such as, as shown in Figure 4 B, so-called left distance light light distribution patterns PHL can be formed, wherein form irradiated area at the upper left of horizontal line H and form lightproof area at the upper right of horizontal line H.In addition, except left distance light light distribution patterns PHL, can also form right distance light light distribution patterns, dipped beam light distribution patterns and so-called partition light pattern, wherein lightproof area is formed in the top center portion of horizontal line H and irradiated area is formed in the both sides in the horizontal direction of lightproof area.
In addition, as shown in Figure 5A, lamps apparatus for vehicle 1 can form lightproof area S in region overlapping with other vehicles or pedestrians in distance light light distribution patterns PH.Therefore, can the possibility that other vehicles or pedestrians are dazzle the eyes be reduced, the raising of the visuality of driver can be realized again simultaneously.Fig. 5 A illustrates distance light light distribution patterns PH, and wherein lightproof area S is formed in the position overlapping with opposed vehicle.Such as can form lightproof area S as follows.
That is image processing apparatus 310 obtains the view data obtained by the image pick-up device 312 of such as camera etc., and image procossing is performed to view data.Therefore, image processing apparatus 310 identifies vehicles or pedestrians that view data comprises and detects its position.For identifying that the technology of vehicles or pedestrians and the technology for detecting its position are well-known, and therefore by description is omitted.The positional information of detected vehicles or pedestrians is sent to control part 300.Control part 300 utilizes the positional information of vehicles or pedestrians light distribution patterns forming portion 30 to be controlled to make lightproof area S be formed in the position that there are vehicles or pedestrians in distance light light distribution patterns PH.Light distribution patterns forming portion 30 makes to be in non-irradiated state with micro mirror corresponding with lightproof area S among the micro mirror of the first illumination region R1 overlap.Therefore, lightproof area S is formed in distance light light distribution patterns PH.
In addition, as shown in Figure 5 B, the shape of road that lamps apparatus for vehicle 1 can such as travel according to vehicle makes formed light distribution patterns displacement.Therefore, the visuality of driver can be improved.Such as, under the shape of the road of vehicle front is curved situation, making distance light light distribution patterns PH be shifted into the irradiation making distance light light distribution patterns PH is not the front guiding vehicle into, but guides the end (outlet) of the curve of crankcase ventilaton into.The displacement of above-mentioned light distribution patterns can such as perform in the following manner.
That is rotation direction sensor 320 sends the steering angle information of vehicle to control part 300.Control part 300 carrys out the driving in control both optical dislodged parts portion 40 according to the steering angle obtained from rotation direction sensor 320, is shifted to make the first illumination region R1 in light distribution patterns forming portion 30.As shown in Figure 5 B, when distance light light distribution patterns PH is shifted in the horizontal direction, control part 300 makes the first illumination region R1 be shifted in the horizontal direction by the optics displaced portions 40 controlling to make optics 20B be shifted to make optics 20B rotate.Or control part 300 can utilize the information relevant with road shape that is vehicle front that is that obtain from navigation system 330 to make the first illumination region R1 be shifted.
In addition, lamps apparatus for vehicle 1 can form the various information displaying light distribution patterns P1 to P3 shown in Fig. 6 A to 8B.Fig. 6 A to 8B illustrates the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the first embodiment.The situation respectively illustrating light fixture front in Fig. 6 A, 7A and 8A, and the micro mirror array respectively illustrating light distribution patterns forming portion 30 in Fig. 6 B, 7B and 8B.As shown in Fig. 6 B, 7B and 8B, when forming information displaying with light distribution patterns P1 to P3, the light harvesting degree of light irradiated to light distribution patterns forming portion 30 is set to than the value high when forming distance light light distribution patterns PH etc.Therefore, light distribution patterns forming portion 30 is formed the first illumination region R1 that area is less.In addition, control part 300 controls the optics displaced portions 40 be connected with optics 20A and 20B, moves to position corresponding with each information displaying light distribution patterns P1 to P3 in light distribution patterns forming portion 30 to make the first illumination region R1.
Subsequently, among the micro mirror overlapping with the first illumination region R1, be in irradiating state with the micro mirror of the shape overlapped of each information displaying light distribution patterns P1 to P3, and all the other micro mirrors are in non-irradiated state.Therefore, each information displaying light distribution patterns P1 to P3 is formed in the front of light fixture.By forming information displaying light distribution patterns P1 to P3, the driving of driver can be supported.In addition, control part 300 regulates the emissive porwer of blue laser light source 102, green laser light source 104 and red laser light source 106 according to the type of the light distribution patterns that will be formed.Such as, when forming information displaying with light distribution patterns P1 to P3, send the laser except white laser from light source 10, such as red, blue or yellow laser.Therefore, the highlighting of information displaying light distribution patterns P1 to P3 can be strengthened.
Such as, as shown in Figure 6 A and 6B, lamps apparatus for vehicle 1 can form the sagittate information displaying light distribution patterns P1 in the direction that instruction vehicle will travel in the crosspoint etc. of vehicle front.In this case, such as, in navigation system 330, the run routing information of registration is sent to control part 300, and control part 300 can obtain direction that vehicle will travel to determine the shape of the information displaying light distribution patterns P1 that will be formed by light distribution patterns forming portion 30 based on this information.
In addition, such as, as shown in figs. 7 a-b, lamps apparatus for vehicle 1 can form the information displaying light distribution patterns P2 of instruction from the numerical switch of the distance of locality (as the next crosspoint that destination or vehicle will be turned right or turn left).In this case, such as, in navigation system 330, the run routing information of registration is sent to control part 300, and control part 300 can obtain with the information of the distance dependent from locality based on this information to determine the shape of the information displaying light distribution patterns P2 that will be formed by light distribution patterns forming portion 30.Note, information displaying light distribution patterns P2 can indicate the numerical value of the speed limit of such as external air temperature, remaining fuel amounts, road and the distance etc. from front vehicles.
In addition, such as, as shown in figs. 8 a and 8b, lamps apparatus for vehicle 1 can be formed for informing that driver to exist the information displaying light distribution patterns P3 of the barrier of such as pedestrian etc. in the front of vehicle.In this case, the positional information of the barrier of such as pedestrian etc. is sent to control part 300 from such as image processing apparatus 310, and control part 300 can form information displaying light distribution patterns P3 based on this information near the position of barrier.
As mentioned above, the light distribution patterns forming portion 30 formed by arranging multiple optical element that can switch between irradiating state and non-irradiated state is respectively comprised according to the lamps apparatus for vehicle 1 of the present embodiment, with optics 20, this optics 20, to light distribution patterns forming portion 30 radiation source light, comprises the specific Illumination Distribution of the first illumination region R1 of high illumination and the second illumination region R2 of low-light (level) to make formation in light distribution patterns forming portion 30.Light distribution patterns forming portion 30 utilizes the optical element overlapping with the first illumination region R1 to irradiate light for the formation of specific light distribution patterns towards the front of light fixture, and makes the optical element overlapping with the second illumination region R2 be in non-irradiated state.
That is lamps apparatus for vehicle 1 suppresses to the light quantity being not used in the optical element irradiation forming light distribution patterns for the level lower than the light quantity of irradiating to the optical element for the formation of light distribution patterns.Therefore, with by irradiating the light quantity identical with the light quantity of irradiating to the optical element for the formation of light distribution patterns and prevent by making light absorbing material absorb light the front to light fixture from irradiating light formed compared with the common lamps apparatus for vehicle of the light distribution patterns of expectation to being not used in the optical element forming light distribution patterns, the light quantity being not used in and forming light distribution patterns can be reduced.Therefore, according to the lamps apparatus for vehicle 1 of the present embodiment, the light utilization efficiency in lamps apparatus for vehicle can be improved.
In addition, the light quantity of irradiating to the optical element for the formation of light distribution patterns can be increased, and therefore can improve the illumination of light distribution patterns further.Therefore, the visuality of driver can be strengthened further.In addition, can reduce the briliancy required by light source, and therefore can strengthen the flexibility of light source selection.In addition, because lamps apparatus for vehicle 1 comprises light distribution patterns forming portion 30---it comprises multiple optical element, therefore freely can change the shape of light distribution patterns.Therefore, the quantity of the type of the light distribution patterns that can be formed can be increased, the raising of light utilization ratio can be realized simultaneously.Note, also reduce the light quantity (that is, by setting up above-mentioned dimming condition) of irradiating in the front towards light fixture by the dutycycle that controls the Open-Close operation of a part for the micro mirror overlapping with the first illumination region R1 with the time increasing time per unit non-irradiated state and in light distribution patterns, form low-light (level) region.Therefore, the quantity of the type of the light distribution patterns that can be formed can be increased.
In addition, lamps apparatus for vehicle 1 makes the first illumination region R1 in light distribution patterns forming portion 30 be shifted by utilizing optics displaced portions 40 to make optics 20 be shifted.Therefore, the light distribution patterns displacement that the front towards light fixture can be made to irradiate, and therefore can improve the visuality of driver further.In common lamps apparatus for vehicle, by rotation or leveling whole light fixture, light distribution patterns is shifted.In contrast, in the present embodiment, the displacement by making the first illumination region R1 realize light distribution patterns at light distribution patterns forming portion 30 superior displacement.Therefore, according to the present embodiment, rotating mechanism or the levelling gear of light fixture can be omitted, and therefore can realize the simplification of the structure of lamps apparatus for vehicle and the reduction of manufacturing cost thereof.
In addition, as illustrated in fig. 1 and 2, optics displaced portions 40 makes the optical axis O of optics 20 (being optics 20B in figure) be shifted.Therefore, the position C making optical axis O and light distribution patterns forming portion 30 overlap each other is at light distribution patterns forming portion 30 superior displacement.In optical design, optics 20 is designed such that the first illumination region R1 of high illumination is formed in the region of the optical axis O of optics 20, and the second illumination region R2 of low-light (level) is formed in in the isolated region of optical axis O.In this case the illumination of the second illumination region R2 is not essentially 0, but the second illumination region R2 is the region with certain brightness.When the region shifting making to be in the optical element of irradiating state under the state that the position by the first illumination region R1 in light distribution patterns forming portion 30 and the second illumination region R2 is fixed makes light distribution patterns be shifted, there is the situation that the optical element group that is in irradiating state shifts out from the first illumination region R1.In this case, the light of the first illumination region R1 of high illumination is not used to form light distribution patterns, and therefore light utilization efficiency declines.In addition, utilize the light of the second illumination region R2 of low-light (level) to form light distribution patterns, and therefore the illumination of light distribution patterns decline.In contrast, in the present embodiment, optics displaced portions 40 moves the position C that optical axis O and light distribution patterns forming portion 30 are overlapped each other according to the displacement of light distribution patterns, and more light of the first illumination region R1 therefore can be utilized to form light distribution patterns when light distribution patterns is shifted.Therefore, the raising that can realize light utilization efficiency and the suppression that the illumination of light distribution patterns is declined.
(the second embodiment)
According to the structure of the lamps apparatus for vehicle of the second embodiment except being provided with two light sources and the optics corresponding with these two light sources with substantially the same according to the structure of the lamps apparatus for vehicle 1 of the first embodiment.The component identical with the component of the first embodiment represents with identical Reference numeral and will the description thereof will be omitted and illustrate.Fig. 9 is the vertical sectional view of the internal structure of the lamps apparatus for vehicle schematically shown according to the second embodiment.Figure 10 is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the second embodiment.Figure 11 A, 11B, 12A and 12B illustrate the schematic diagram by the example of the light distribution patterns formed according to the lamps apparatus for vehicle of the second embodiment.
The first light source 10A as light source 10 and secondary light source 10B is comprised according to the lamps apparatus for vehicle 1 of the present embodiment.In addition, lamps apparatus for vehicle 1 comprises the first optics 20C as optics 20 and the second optics 20D.First light source 10A is emitted in light light distribution patterns forming portion 30 being formed the first illumination region R1.Secondary light source 10B is emitted in light light distribution patterns forming portion 30 being formed the second illumination region R2.First optics 20C irradiates the light of the first light source 10A to light distribution patterns forming portion 30.Second optics 20D irradiates the light of secondary light source 10B to light distribution patterns forming portion 30.Light distribution patterns forming portion 30 utilizes the optical element overlapping with the first illumination region R1 to irradiate light for the formation of specific first light distribution patterns towards the front of light fixture, and the utilization optical element overlapping with the second illumination region R2 irradiates the light for the formation of second light distribution patterns with the illumination lower than the illumination of the first light distribution patterns towards the front of light fixture.Therefore, in the present embodiment, the illumination of the second illumination region R2 is not essentially 0, and the second illumination region R2 is the region that irradiated light amount ratio first illumination region R1 is little.
In the present embodiment, as shown in Figure 11 A, the distance light light distribution patterns PH formed by lamps apparatus for vehicle 1 is made up of light harvesting pattern P H1 and diffusion patterned PH2, near the end point of described light harvesting patterned illumination as the crosspoint of horizontal line H and vertical curve V (so-called hot-zone), described diffusion patternedly have the illumination lower than light harvesting pattern P H1 and irradiate the scope wider than light harvesting pattern P H1.Light harvesting pattern P H1 corresponds to the first light distribution patterns of the high illumination formed by the light of the first illumination region R1, and diffusion patterned PH2 corresponds to the second light distribution patterns of the low-light (level) formed by the light of the second illumination region R2.In this case, the first light source 10A forming the first illumination region R1 is preferably made up of the LASER Light Source sending high briliancy laser.On the other hand, preferably low by directive property and the light emitting diode (LED) that light quantity is large of the secondary light source 10B forming the second illumination region R2 is formed.In the present embodiment, the first light source 10A is made up of LASER Light Source, and secondary light source 10B is made up of LED.In addition, the first optics 20C is such as made up of level crossing, and the second optics 20D is made up of curved mirror.
In addition, as shown in Figure 11 B, similar to the first embodiment, in the lamps apparatus for vehicle 1 of the present embodiment, also can form lightproof area S in region overlapping with other vehicles or pedestrians in distance light light distribution patterns PH.In this case, light distribution patterns forming portion 30 makes to be in non-irradiated state with micro mirror corresponding with lightproof area S among the micro mirror of the first illumination region R1 overlap and the micro mirror overlapping with the second illumination region R2.Therefore, lightproof area S is formed.
Lamps apparatus for vehicle 1 comprises the first optics displaced portions 40A and the second optics displaced portions 40B.First optics displaced portions 40A makes the displacement of the first illumination region R1 in light distribution patterns forming portion 30 by making the first optics 20C displacement.Second optics displaced portions 40B makes the displacement of the second illumination region R2 in light distribution patterns forming portion 30 by making the second optics 20D displacement.First optics displaced portions 40A and the second optics displaced portions 40B makes the first optics 20C and the second optics 20D be shifted, and is shifted along the left and right directions of light fixture to make the light irradiated to light distribution patterns forming portion 30.The position of the first illumination region R1 and the position of the second illumination region R2 can be shifted independently of one another by the first optics displaced portions 40A and the second optics displaced portions 40B.Therefore, the quantity of the type of light distribution patterns can be increased, and improve the visuality of driver further.Note, the first optics displaced portions 40A and the second optics displaced portions 40B can make the first illumination region R1 and the second illumination region R2 be shifted along the above-below direction of light fixture.
Utilize the first optics displaced portions 40A and the second optics displaced portions 40B, the shape of the road that lamps apparatus for vehicle 1 can travel according to such as vehicle makes light distribution patterns be shifted.At this, lamps apparatus for vehicle 1 can make whole distance light light distribution patterns PH be shifted while maintaining the position relationship between light harvesting pattern P H1 and diffusion patterned PH2 as illustrated in fig. 12, and also can only make light harvesting pattern P H1 be shifted as shown in Figure 12 B.Lamps apparatus for vehicle 1 also can only make diffusion patterned PH2 be shifted.
As mentioned above, the lamps apparatus for vehicle 1 of the present embodiment utilizes the first illumination region R1 of the high illumination in light distribution patterns forming portion 30 to form the light harvesting pattern P H1 of high illumination, utilize the second illumination region R2 of the low-light (level) in light distribution patterns forming portion 30 to form the diffusion patterned PH2 of low-light (level), and complete distance light light distribution patterns PH thus.Result, with in light distribution patterns forming portion 30, form roughly uniform illumination region---in other words, light distribution patterns forming portion 30 is only formed the first illumination region R1, a part for the optical element overlapping with the first illumination region R1 is utilized to form light harvesting pattern P H1, and by the dutycycle of the Open-Close operation that controls all the other optical elements to increase the time of the non-irradiated state of time per unit and to reduce the light quantity of irradiating in the front towards light fixture and form diffusion patterned PH2---situation compare, can light utilization efficiency be improved.Note, by controlling the dutycycle of the Open-Close operation of all or part of optical element overlapping with the second illumination region R2 to make the time of the irradiating state of time per unit shorter (namely than the micro mirror overlapping with the first illumination region R1, by setting up above-mentioned dimming condition), can be formed have compared with low-light (level) diffusion patterned PH2 or partly there is the diffusion patterned PH2 in low-light (level) region.Even if in this case, also can light utilization efficiency be improved.
In addition, lamps apparatus for vehicle 1 comprises for the first light source 10A of the first illumination region R1 and the secondary light source 10B for the second illumination region R2.Correspondingly, two illumination regions with different illumination can more easily be formed in light distribution patterns forming portion 30.Note, in the lamps apparatus for vehicle 1 of the present embodiment, the light source for the formation of the information displaying light distribution patterns P1 to P3 shown in Fig. 6 to 8B also can be set.Or, the first light source 10A can be utilized to form information displaying light distribution patterns P1 to P3.Light distribution patterns forming portion 30 is formed high illumination region (the first illumination region R1) and preferably includes blue laser light source 102, green laser light source 104 and red laser light source 106 as shown in Figure 3 with each light source formed in these light sources of information displaying light distribution patterns P1 to P3, and the emissive porwer of each LASER Light Source preferably can regulate independently of one another.
When utilizing the first light source 10A to form information displaying light distribution patterns P1 to P3, secondary light source 10B and the second optics 20D can be utilized to form the first illumination region R1 for light harvesting pattern P H1 and the second illumination region R2 for diffusion patterned PH2.In addition, equally in the lamps apparatus for vehicle 1 of the first embodiment, by regulating the shape of the reflecting surface of optics 20A and 20B, the second illumination region R2 that the first illumination region R1 and illumination are not essentially 0 can be formed in light distribution patterns forming portion 30.
(the 3rd embodiment)
Substantially the same with the structure of the lamps apparatus for vehicle 1 according to the first or second embodiment except light distribution patterns forming portion is liquid crystal photic gate (liquid crystal shutter) according to the structure of the lamps apparatus for vehicle of the 3rd embodiment.The component identical with the component of the first or second embodiment represents with identical Reference numeral and will the description thereof will be omitted and illustrate.Figure 13 A is the vertical sectional view of the internal structure of the lamps apparatus for vehicle schematically shown according to the 3rd embodiment.Figure 13 B is the perspective view of the internal structure of the lamps apparatus for vehicle schematically shown according to the 3rd embodiment.
The lamps apparatus for vehicle 1 of the present embodiment comprises the first light source 10A as light source 10 and secondary light source 10B.In addition, lamps apparatus for vehicle 1 comprises the first optics 20C as optics 20 and the second optics 20D.First light source 10A is emitted in light light distribution patterns forming portion 30 being formed the first illumination region R1a for the formation of information displaying light distribution patterns P1 to P3.Secondary light source 10B is emitted in light light distribution patterns forming portion 30 being formed the first illumination region R1b for the formation of the light harvesting pattern P H1 of distance light light distribution patterns PH and the second illumination region R2 for the formation of its diffusion patterned PH2.First optics 20C irradiates the light of the first light source 10A to light distribution patterns forming portion 30.Second optics 20D irradiates the light of secondary light source 10B to light distribution patterns forming portion 30.In the present embodiment, the first light source 10A is made up of LASER Light Source, and secondary light source 10B is made up of LED.In addition, each in the first optics 20C and the second optics 20D is all made up of curved mirror.First light source 10A comprises blue laser light source 102, green laser light source 104 and red laser light source 106, and the emissive porwer of each LASER Light Source can regulate independently of one another.
In addition, lamps apparatus for vehicle 1 has the first optics displaced portions 40A by making the first optics 20C displacement make the displacement of the first illumination region R1a in light distribution patterns forming portion 30.First optics displaced portions 40A can make the first optics 20C be shifted, to make the light irradiated to light distribution patterns forming portion 30 along the left and right directions of light fixture and above-below direction displacement.Note, optics displaced portions can be arranged at the second optics 20D, and optics displaced portions also only can be arranged at the second optics 20D.
The light distribution patterns forming portion 30 of the present embodiment is made up of liquid crystal photic gate, and is configured on the path of light source light between the first optics 20C and projecting lens 50 and between the second optics 20D and projecting lens 50.Therefore, light source light is incident on light distribution patterns forming portion 30 from the rear side of light fixture.Light distribution patterns forming portion 30 is arranged so that the polarization direction of liquid crystal is consistent with the polarization direction of laser.Therefore, light utilization ratio can be improved.Light distribution patterns forming portion 30 can switch by changing between the light amount ratio of irradiating in irradiating state, non-irradiated state and the front towards light fixture as the light transmission amount in each liquid crystal cell of optical element dimming condition little under irradiating state.The structure of liquid crystal photic gate is well-known, and therefore by description is omitted.The light that light distribution patterns forming portion 30 utilizes the liquid crystal cell being in irradiating state or dimming condition to allow to irradiate from the first optics 20C and the second optics 20D to liquid crystal cell is towards the front permeate crystal cell of light fixture.Should through light enter in the projecting lens 50 being configured in light distribution patterns forming portion 30 front.
Therefore, even if when using liquid crystal photic gate as light distribution patterns forming portion 30, also the light distribution patterns similar to the first and second embodiments can be formed, and realizing similar effect.Note, in the lamps apparatus for vehicle 1 of the present embodiment, the structure of light source 10, optics 20 and optics displaced portions 40 is not limited to the structure shown in Figure 13 A and 13B, but also can adopt the structure of the first or second embodiment.In addition, the structure of the 3rd embodiment can also be adopted in the first and second embodiment.
The present invention is not limited to above-described embodiment, and therefore embodiment can combine or can modify embodiment based on the knowledge of those skilled in the art, such as various design alteration.Embodiment based on these combinations or amendment is also included within the scope of the invention.The new embodiment produced by the combination of above-described embodiment or the combination of above-described embodiment and following modification has the attendant advantages of embodiment and the modification that will combine.
In each above-described embodiment, reflector can be set and replace projecting lens 50.In addition, multiple projecting lens 50 can be set.In addition, lamps apparatus for vehicle 1 can not comprise the optics 20A to 20D formed by mirror.In this case, such as, by arranging the lens of the optical function with meeting set laser or make light integrator 120 have this optical function in light source 10, lens or light integrator 120 can be used as optics 20.When use lens or light integrator 120 as optics 20, optics displaced portions 40 makes lens or light integrator 120 be shifted by such as making whole light source 10 be shifted.But, generally speaking, because the size being configured with radiating fin etc. so that light source 10 in light source 10 is larger, therefore more easily make the structure of lamps apparatus for vehicle 1 simplify when adopting the structure of optics 20A to the 20D displacement making to form by mirror.Between light source 10 and optics 20 or between optics 20 and light distribution patterns forming portion 30, also can collecting optical system be set.
In a second embodiment, there is the region of not illuminated light source light in the outside of the second illumination region R2 in light distribution patterns forming portion 30, but the whole region except the first illumination region R1 can be the second illumination region R2.Among the optical element overlapping with the second illumination region R2, can only make the optical element corresponding with diffusion patterned PH2 be in irradiating state or dimming condition, and other optical element can be in non-irradiated state.Even if in this case, compared with only forming the first illumination region R1 and utilize and form the situation of diffusion patterned PH2 with the optical element of the first illumination region R1 overlap in light distribution patterns forming portion 30, the light utilization efficiency of lamps apparatus for vehicle 1 can be improved.In each above-described embodiment, the high briliancy light source formed by combination laser light source and fluorescence part can be used as light source, described LASER Light Source sends the laser of the wavelength with blueness or ultraviolet region, and described fluorescence part sends the light with the wavelength longer than the wavelength of laser when sending laser.

Claims (10)

1. a lamps apparatus for vehicle, comprising:
Light source (10);
The light distribution patterns forming portion (30) formed by arranging multiple optical element, wherein each optical element can both switch between at least one in irradiating state and non-irradiated state and dimming condition, the light source light sent by described light source (10) under described irradiating state is irradiated towards the front of described light fixture, under described non-irradiated state, described light source light is not irradiated towards the front of described light fixture, and the amount that described light source light is irradiated towards the front of described light fixture under described dimming condition is than little under described irradiating state; With
Optics (20), described optics irradiates described light source light to described light distribution patterns forming portion (30), and the feature of described lamps apparatus for vehicle is:
Described optics (20) irradiates described light source light to described light distribution patterns forming portion (30), to make to comprise the first illumination region (R1) in the upper formation of described light distribution patterns forming portion (30) and have the specific Illumination Distribution in the second illumination region (R2) of the illumination lower than the illumination in described first illumination region (R1); And
Described light distribution patterns forming portion (30) utilizes the described optical element overlapping with described first illumination region (R1) to irradiate light for the formation of specific first light distribution patterns towards the front of described light fixture; And
Described light distribution patterns forming portion (30) utilizes the described optical element overlapping with described second illumination region (R2) to irradiate light for the formation of second light distribution patterns with the illumination lower than the illumination of described first light distribution patterns towards the front of described light fixture, or makes the described optical element overlapping with described second illumination region be in described non-irradiated state.
2. lamps apparatus for vehicle according to claim 1, wherein
Described light distribution patterns forming portion (30) makes being in described irradiating state at least partially and making all the other optical elements overlapping with described first illumination region (R1) be in described non-irradiated state, to form described specific first light distribution patterns of the described optical element overlapping with described first illumination region (R1).
3. lamps apparatus for vehicle according to claim 1 and 2, also comprises:
Optics displaced portions (40), described optics displaced portions to be shifted the displacement of at least one on described light distribution patterns forming portion (30) making in described first illumination region (R1) and described second illumination region (R2) by making described optics (20).
4. lamps apparatus for vehicle according to claim 1 and 2, wherein:
Described light source (10) comprises the first light source (10A) and secondary light source (10B), described first light source is emitted in the upper light forming described first illumination region (R1) of described light distribution patterns forming portion (30), and described secondary light source is emitted in the upper light forming described second illumination region (R2) of described light distribution patterns forming portion (30); And
Described light distribution patterns forming portion (30) utilizes the described optical element overlapping with described first illumination region (R1) to form described first light distribution patterns, and utilizes the described optical element overlapping with described second illumination region (R2) to form described second light distribution patterns.
5. lamps apparatus for vehicle according to claim 4, wherein
Described optics (20) comprises the first optics (20C) and the second optics (20D), described first optics irradiates the light of described first light source (10A) to described light distribution patterns forming portion (30), and described second optics irradiates the light of described secondary light source (10B) to described light distribution patterns forming portion (30).
6. lamps apparatus for vehicle according to claim 5, also comprises:
At least one in first optics displaced portions (40A) and the second optics displaced portions (40B), described first optics displaced portions makes the displacement of described first illumination region (R1) on described light distribution patterns forming portion (30) by making the displacement of described first optics (20C), and described second optics displaced portions makes the displacement of described second illumination region (R2) on described light distribution patterns forming portion (30) by making the displacement of described second optics (20D).
7. lamps apparatus for vehicle according to claim 6, wherein
By described first optics displaced portions (40A) and described second optics displaced portions (40B), the position in the position in described first illumination region (R1) and described second illumination region (R2) is shifted independently of one another.
8. lamps apparatus for vehicle according to claim 1 and 2, wherein
Described light source (10) comprises red laser light source (106), green laser light source (104) and blue laser light source (102), and the emissive porwer of each described LASER Light Source can regulate independently of one another.
9. a lamps apparatus for vehicle, is characterized in that comprising:
Light source (10);
The light distribution patterns forming portion (30) formed by arranging multiple optical element, wherein each optical element can both switch between at least one in irradiating state and non-irradiated state and dimming condition, the light source light sent by described light source (10) under described irradiating state is irradiated towards the front of described light fixture, under described non-irradiated state, described light source light is not irradiated towards the front of described light fixture, and the amount that described light source light is irradiated towards the front of described light fixture under described dimming condition is than little under described irradiating state;
Optics (20), described optics irradiates described light source light to described light distribution patterns forming portion (30); With
Optics displaced portions (40), described optics displaced portions makes the optical axis (O) of described optics (20) be shifted.
10. lamps apparatus for vehicle according to claim 9, wherein:
Described optics has reflecting surface; And
Described optics displaced portions makes described reflecting surface be shifted.
CN201410322886.1A 2013-07-10 2014-07-08 Lamps apparatus for vehicle Active CN104279485B (en)

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JP2013144231A JP6132684B2 (en) 2013-07-10 2013-07-10 Vehicle lighting
JP2013-144231 2013-07-10

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CN104279485A true CN104279485A (en) 2015-01-14
CN104279485B CN104279485B (en) 2017-06-09

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CN107787427A (en) * 2015-06-09 2018-03-09 Zkw集团有限责任公司 Head lamp for vehicle
CN107850279A (en) * 2015-07-08 2018-03-27 大众汽车有限公司 Projection optical system and projecting cell for motor vehicle
CN107923589A (en) * 2015-08-27 2018-04-17 Zkw集团有限责任公司 Optical module for automobile front lamp
CN109073187B (en) * 2016-02-24 2021-08-10 Zkw集团有限责任公司 Head lamp for vehicle
CN109073187A (en) * 2016-02-24 2018-12-21 Zkw集团有限责任公司 Headlamp for vehicle
CN107128240A (en) * 2016-02-29 2017-09-05 长城汽车股份有限公司 The illuminator and its control method of vehicle, vehicle
CN109661539A (en) * 2016-09-07 2019-04-19 黑拉有限责任两合公司 The headlamp of headlamp, especially motor vehicle
CN107131463A (en) * 2017-05-25 2017-09-05 上海小糸车灯有限公司 A kind of projection lens set with different imaging capabilities
CN109114518A (en) * 2017-06-22 2019-01-01 株式会社小糸制作所 Lamps apparatus for vehicle
CN110914108A (en) * 2017-08-10 2020-03-24 Zkw集团有限责任公司 Vehicle headlamp and vehicle control device
CN111373197A (en) * 2018-02-08 2020-07-03 宝马股份公司 Lighting device for a motor vehicle
CN113631857A (en) * 2019-04-11 2021-11-09 Zkw集团有限责任公司 Light module for a motor vehicle headlight
CN113631857B (en) * 2019-04-11 2023-10-03 Zkw集团有限责任公司 Light module for a motor vehicle headlight
CN112303585A (en) * 2019-08-01 2021-02-02 现代自动车株式会社 Lighting device for vehicle

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JP2015018652A (en) 2015-01-29
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FR3008477A1 (en) 2015-01-16
FR3008477B1 (en) 2022-05-13

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