CN107036025A - Headlamp - Google Patents

Headlamp Download PDF

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Publication number
CN107036025A
CN107036025A CN201710060679.7A CN201710060679A CN107036025A CN 107036025 A CN107036025 A CN 107036025A CN 201710060679 A CN201710060679 A CN 201710060679A CN 107036025 A CN107036025 A CN 107036025A
Authority
CN
China
Prior art keywords
headlamp
light
luminescent coating
laser diodes
plane
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.)
Pending
Application number
CN201710060679.7A
Other languages
Chinese (zh)
Inventor
S·泽纳
S·萨拉贾
S·马特斯
G·本德尔曼
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of CN107036025A publication Critical patent/CN107036025A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • 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
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/13—Ultraviolet light; Infrared light
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • 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
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The present invention relates to a kind of headlamp (2), there is the matrix being made up of multiple laser diodes (6) to have a luminescent coating (8) as the first light source (4) and in second plane in first plane and an actuator (10) of the luminescent coating (8) is distributed to for the headlamp, wherein, the two planes are arranged in parallel with each other, wherein, the monochromatic light (32 of these laser diodes (6), 34) it is transmitted through the luminescent coating (8) and is converted into white light (36), wherein, the actuator (10) is formed as, the luminescent coating is moved relative to the block being made up of multiple laser diodes (6).

Description

Headlamp
Technical field
The present invention relates to a kind of headlamp.
Background technology
Headlamp for motor vehicles is typically arranged at the outer wall of the motor vehicles and is formed as being used to illuminate this A region outside motor vehicles.Therefore, the headlamp includes the light source that at least one is used to produce light.The light source can herein With including multiple laser modules.Addedly, a sensor can also be arranged in the headlamp, can be passed through with the sensor Electromagnetic wave is analyzed to monitor the surrounding environment of the motor vehicles.
In this regard with reference to the light from the headlamp for being used for motor vehicles known to the A1 of file DE 10 2,012 100 139 Module (has a laser beam sources).In addition, from a kind of illuminating device and one kind known to the A1 of file DE 10 2,008 063 634 Projector.A kind of lighting device of motor vehicles described in the B3 of file DE 10 2,007 055 480.In file DE 10 A kind of lidar light detection and ranging system based on vehicle is introduced in 2006 044 794 A1.
It is known that multiple laser modules launch the light of high-energy.If the laser alignment of these laser modules preceding photograph , then there is the danger that the module may be damaged by these laser beams in an other for example optical module in lamp.
The content of the invention
In this context, it is an object of the invention to provide a kind of headlamp with the laser module as light source and It is formed so that the optical module not by the laser of these laser modules at least one other optical module of the headlamp Beam is damaged.
The purpose is by being realized according to the headlamp of the present invention.Multiple structures of the headlamp are drawn from specification Type.
The matrix conduct for including being made up of multiple laser diodes in first plane according to the headlamp of the present invention First light source, includes a luminescent coating in second plane and distributes to an actuator of the luminescent coating.This A little laser diodes can arbitrarily be shaped by a necessary semiconductor chip, wherein, matrix is simplest application shape Formula.Here, the two planes are arranged in parallel with each other, wherein, monochromatic light (blue lights or laser of such as these laser diodes) It is transmitted through the luminescent coating and white light is converted into by the luminescent coating, wherein, the actuator is formed as, and luminescent coating is existed Offset and/or mobile relative to the block being made up of multiple laser diodes in second plane.The luminescent coating is not necessarily Illumination must be transmitted, the luminescent coating can also be used in the way of reflection.
In addition, the headlamp has at least one first sensor, such as thermometer, the sensor is formed as being used to detect The heating distribution of the luminescent coating.If located in the one of in the focus of the laser diode of the first light source, luminescent coating Individual first area is heated to greater than the temperature value of the first high threshold, then the actuator is formed as, by having for the luminescent coating Second area less than the temperature value of the second Low threshold is moved in the focus of these laser diodes of first light source.Rely on In two threshold values of temperature tolerance or heat-resisting Sexual behavior mode of the luminescent coating, wherein, the first threshold is more than the Second Threshold.
Associatedly, the actuator is alternatively, or in addition to formed as, relative to these laser diodes for example forever The luminescent coating is moved according to predetermined pattern (Muster) or according to random pattern long.
Can be moved relative to these laser diodes the luminescent coating move mode for example also rely on this first These laser diodes in plane be spaced how far.If the distance example between the laser diode of two direct neighbors Such as be d, then in configuration can by luminescent coating relative to these laser diodes in first plane with least one Direction correspondingly moves back and forth this apart from d step by step.In addition it is contemplated that the luminescent coating is taken vertically at two To direction in correspondingly move back and forth this step by step relative to these laser diodes apart from d.By this at least one first Sensor directly monitors the Warm status of the luminescent coating.
Alternatively, or in addition to it is possible that monitoring the work of these laser diodes with least one first sensor Property and the luminescent coating is controlled on this basis relative to the relative motion of these laser diodes.Monochromatic light (for example these The blue light of laser diode) with the unified wavelength in the range of about 450nm to 490nm.Laser beam with this wavelength Polychromatic light or white light are converted into by the luminescent coating, wherein, white light is included in multiple wavelength in visible range, generally exists Between 440nm and 700nm.
In configuration, parallel to these planes between the matrix and the luminescent coating being made up of multiple laser diodes Extraly arrange have a block being made up of multiple lenticules, be transmitted through the luminescent coating and be converted into white light it Before, the still monochromatic light of these laser diodes passes through these micro lens.
Each laser diode can typically have a semiconductor chip and be formed as surface light emitting body or be formed as The laser diode or VCSEL (Vcsel) launched perpendicular to the semiconductor chip.In VCSEL technologies In, the matrix being made up of multiple laser diodes is produced from a semiconductor chip.
In addition, the headlamp has second block being made up of multiple laser diodes as secondary light source, these Laser diode arrangement in the 3rd plane, wherein, these laser diodes of the secondary light source are formed as being used to produce Monochromatic light, such as infrared light.Here, the 3rd plane is generally rotated by 90 ° relative to first plane and second plane.
In other configuration, the headlamp includes a partially transparent speculum, and the speculum is relative to the two First plane and the white light for generally rotating 45 ° relative to the 3rd plane and being changed from the monochromatic light of first light source are saturating It was shot through the speculum.The speculum is also formed as, reflect and launch from the headlamp secondary light source infrared light or Laser.
Addedly it is possible that the headlamp has a second sensor (such as photoelectric detector), second sensing Device is formed as detecting from the outside light for injecting the headlamp, such as infrared light or laser, such as infrared laser.Here, should Second sensor is formed as, detection initially from the headlamp launch, by object reflect and again retroeflection to the headlamp light, Wherein the light injects the headlamp from outside.Here, it is possible that the headlamp not only is used as into illuminating device, while will also It is used as laser detection and distance measuring sensor to detect the surrounding environment of the headlamp.
The headlamp is generally configured for vehicle, such as motor vehicles.It is motor-driven that this can be illuminated with the headlamp Around vehicle.Thus, additionally it is possible to object of the detection around the motor vehicles.
In addition, can produce high-resolution, free from glare laser matrix distance light with the headlamp and realize in sensing The technical laser detection of device and distance measurement function.With the first high-resolution light source, (light source is included by multiple poles of laser two Block or matrix that pipe is constituted) variable light distribution usually can be produced.
The laser diode of the light source has the small angle of departure compared with conventional light emitting diode so that direct neighbor Laser diode is in the interior respective block with small spacing organized side-by-side each other.In addition, these laser for passing through first light source Diode generally produces the light of palisade.Multiple laser diodes include a semiconductor chip, wherein, laser or laser beam hang down It is straight to launch in the semiconductor chip.Thus it is also feasible that by means of semiconductor chip by by with more than 100000 pixels The high-resolution two-dimentional block or array or a corresponding matrix that laser diode is constituted are integrated into the headlamp In, wherein producing a pixel respectively by a sub-regions of the semiconductor chip.Different from the laser of edge-emission, use These can realize laser matrix perpendicular to the laser diode (VCSEL) that the semiconductor chip is launched.By multiple poles of laser two The block that pipe is set is more resistant to temperature and the circular angle of departure with very little relative to conventional light emitting diode.Due to this The small angle of departure, the construction space of the headlamp and projection optical system being capable of extremely compact ground configurations.With laser detection and survey Headlamp away from function can for example be used for range measurement and/or object identification.
In the case of the headlamp, it is contemplated that the VCSEL technologies, by being changed by means of the moveable luminescent coating One-wavelength laser (such as blue laser) produces white light distribution.
Meanwhile, an optical sensor in the infra-red range is integrated in the headlamp.Thus can also be white It implements sensing function with the headlamp.At least one second sensor or photoelectric detector are for example formed as photodiode The light of the headlamp is externally entering for detection, wherein, during with least one second sensor by short pulse-operation Between difference measurements distance.The possibility alternately or additionally existed is to pass a so-called three-dimensional camera as optics Sensor is integrated into the headlamp, and the three-dimensional camera is again formed as flight time (TOF) video camera.One inspection of the headlamp Surveying unit generally has multiple described second sensors, wherein each individually second sensor can have one itself Optical system.
The block being made up of multiple lenticules or a corresponding array (array is made up of multiple lenticules) is arranged in First plane of the block being made up of multiple laser diodes and for using between the second plane of the luminescent coating and generally In the single monochromatic laser beam for focusing on these laser diodes.Because the luminescent coating can be relative to these laser diodes It is mobile, it is possible to：The luminescent coating is directly being illuminated by these laser diodes or shone indirectly by these lenticules In the case of a bright region or a surface local heating, offset the luminescent coating and herein by the luminescent coating compared with The region or surface offsets of cold region or face instead heat are into the light path of these laser diodes.Thus, these laser beams Hit the relatively cool region of the luminescent coating.The degeneration or abrasion of the luminescent coating can be avoided by the measure and incite somebody to action single Color, blueness laser is efficiently converted into white light.
In order to which common infrared laser beam is diverted into projection partially from second block being made up of these laser diodes In one light path of optical system, herein using the speculum, initially produced simultaneously by these laser diodes of first plane And pass through the speculum from the light transmission in visible range that the luminescent coating is converted into white light.On the contrary, passing through the speculum It is reflected in the light in the infra-red range.The coating for being provided for the speculum is provided usually as microcosmic coating with one kind for this Method be applied on glass and cause at the surface for the speculum being made reflect infrared light.
The projection optical system of the speculum includes a system being made up of lens and is formed as, for that will pass through this Luminescent coating is moved towards to widen and in the certain distance before the headlamp by the light beam of the monochromatic light such as white light of blue light conversion The light beam trend of the white light is clearly formed as far as possible.Draw herein：The light-emitting area of one amplification is provided with the headlamp, wherein The light launched is not focused in a single point, wherein being changed by the security for the eyes that the headlamp irradiates It is kind.
Other advantages and configuration of the present invention are drawn from specification and drawings.
It is self-evident, these above-mentioned features and will following explanation feature can not only correspondence reference Combination in use, but also in other combinations or be used alone without departing from the scope of the present invention.
Brief description of the drawings
The present invention is by means of embodiment schematic presentation, and giving with reference to the accompanying drawings schematic and detailed in the accompanying drawings Explanation.
Fig. 1 shows an embodiment of the headlamp according to the present invention.
Embodiment
By means of Fig. 1 headlamps 2 schematically shown embodiment include be made up of multiple laser diodes 6 one Individual two-dimentional block or a two-dimentional matrix are as the first light source 4, and these laser diode arrangements are in first plane. In addition, the headlamp 2 includes a luminescent coating 8, the fluorescence in second plane parallel to first plane formation Body layer herein can be past in these laser diodes 6 of first plane in second plane in parallel by an actuator 10 It is multiple mobile.
Here, a sensor 12 distributes to the luminescent coating 8, it can be detected on the luminescent coating 8 with the sensor Temperature, be usually Temperature Distribution on the luminescent coating 8.In addition, between plane described in the two abreast and The block and the luminescent coating 8 for being thus parallel to be made up of multiple laser diodes 6 arrange have what is be made up of multiple lenticules 14 One block or array are used as the first focusing system 13.
A secondary light source 16 is arranged in the 3rd plane of the planar orientation first mentioned perpendicular to the two, this Two light sources include second block being made up of multiple laser diodes 18.Parallel to the 3rd plane, it is same arrange to have by The block that multiple lenticules 20 are constituted is used as the second focusing system 19.The headlamp 2 includes the (reflection of speculum 22 Mirror is correspondingly with 45 ° of angle relative to the planar orientation described in these), a projection optical system 24 and one second biography Sensor 26 is as miscellaneous part, and the second sensor has a photoelectric detector 28 and an optical system 30 herein.Should The above-mentioned parts of headlamp 2 are typically scheduled in a housing 42, and the housing is made including a transparent disk 40 except other things For outer wall.
It is provided that in the operation of the headlamp 2, monochromatic light is produced from these laser diodes 6 of first light source 4, Such as blue light 32, the monochromatic light is converted into focusing on light 34 by these lenticules 14, and the focusing is just monochromatic.The light 34 is passed through The luminescent coating 8 and polychromatic light or white light 36 are converted into by the luminescent coating 8.(this is anti-by the speculum 22 for the white light 36 Mirror is penetrated to can be used for enabling white light 36 to pass through), (projection optical system includes being made up of multiple lens projection optical system 24 One system) and the disk 40 projected from the headlamp 2.
Because the monochromatic laser of blue light 32,34 or corresponding has high-energy, in the operation of these laser diodes 6 It is provided that, the luminescent coating 8 is moved back and forth in second plane by the actuator 10, thus avoids the luminescent coating 8 Single region by the light 34 of impact it is too strong heat.Here, the luminescent coating 8 is for example usual from the actuator 10s Moved according to predetermined motor pattern.
The Temperature Distribution of the luminescent coating 8 can also be monitored with the first sensor 12 in configuration and correspondingly should The relatively cool region of luminescent coating 8 is moved in the focus of the monochromatic blue light 34 and is this by the phase of the luminescent coating 8 The region of heat is removed from the focus of the monochromatic blue light 34.
In addition, being provided that, monochromatic light and/or infrared light are produced by multiple laser diodes 18 of the secondary light source 16 37, the monochromatic light and/or infrared light can be converted into the infrared light 38 of focusing by the lenticule 20 of second focusing system 19, should The speculum 22 of the infrared light of focusing from reflection infrared light deflects 90 ° and same by the projection optical system 24 and the disk 40 Sample is projected from the headlamp 2.It is provided that herein, the infrared light 38 is produced by these laser diodes 18 of the secondary light source 16 It is raw, it is provided with pulse signal.
Can be detected by the second sensor 26 and analyze it is outside the headlamp 2, be irradiated on the sensor Light.Be provided that herein associatedly, the infrared light 38 or laser (can convey signal with the infrared light or laser) by Object outside the headlamp 2 reflects and received by the second sensor 26.Run time in view of the signal herein may be used To determine the distance of the object irradiated by the headlamp 2 by the headlamp 2.

Claims (13)

1. headlamp, there is the headlamp matrix that is made up of multiple laser diodes (6) to be used as the in first plane One light source (4) and there is a luminescent coating (8) in second plane and one of the luminescent coating (8) is distributed to Actuator (10), wherein, the two planes are arranged in parallel with each other, wherein, the monochromatic light of these laser diodes (6) (32, 34) it is transmitted through the luminescent coating (8) and is converted into white light (36), wherein, the actuator (10) is formed as, by the fluorophor Layer is moved relative to the matrix being made up of multiple laser diodes (6).
2. headlamp according to claim 1, wherein, these laser diodes (6) are formed as being used to produce blue light conduct Monochromatic light (32,34).
3. headlamp according to claim 1 or 2, the headlamp has at least one first sensor (12), this first Sensor is formed as detecting the heating distribution of the luminescent coating (8), wherein for following situation, i.e., positioned at first light source (4) These laser diodes (6) focus in, a first area of the luminescent coating (8) be heated to greater than high threshold Temperature value, then the actuator (10) be formed as, by one of the luminescent coating (8) have less than Low threshold temperature value second Region is moved in the focus of these laser diodes (6) of first light source (8).
4. the headlamp according to one of above claim, wherein, the actuator (10) be formed as according to a pattern come The mobile luminescent coating (8).
5. the headlamp according to one of above claim, wherein, in the matrix being made up of multiple laser diodes (6) A block being made up of between the luminescent coating (8) parallel to these planar arrangements lenticule (14), these poles of laser two The light (32) for managing (6) is being transmitted through the luminescent coating (8) before by these micro lens.
6. the headlamp according to one of above claim, wherein, each laser diode (6) has a semiconductor core Piece is formed as surface light emitting body.
7. the headlamp according to one of above claim, the headlamp has what is be made up of multiple laser diodes (18) One the second matrix is as secondary light source (16), and second matrix arrangement is in the 3rd plane.
8. headlamp according to claim 8, wherein, the laser diode (18) of second matrix is formed as being used to produce Infrared light (37,38).
9. the headlamp according to claim 7 or 8, wherein, the 3rd plane relative to first plane and this second 90 ° of Plane Rotation.
10. the headlamp according to one of above claim, the headlamp has a partially transparent speculum (22), The speculum is relative to 45 ° of these Plane Rotations and the converted white light (36) is transmitted through the speculum.
11. headlamp according to claim 10, wherein, the speculum (22) is formed as, and reflects and from the headlamp (2) infrared light (37,38) of the secondary light source (18) is launched in.
12. the headlamp according to one of above claim, the headlamp has a second sensor (26), this second Sensor is formed as being used to detect the light for injecting the headlamp (2).
13. headlamp according to claim 12, wherein, the second sensor (26) is formed as, and detection is initially before this Illuminator (2) transmitting, by object reflect and again retroeflection to the headlamp (2) light.
CN201710060679.7A 2016-02-03 2017-01-25 Headlamp Pending CN107036025A (en)

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