CN108613110A - A kind of light-source system, automobile lighting system and control method - Google Patents
A kind of light-source system, automobile lighting system and control method Download PDFInfo
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- CN108613110A CN108613110A CN201611197094.1A CN201611197094A CN108613110A CN 108613110 A CN108613110 A CN 108613110A CN 201611197094 A CN201611197094 A CN 201611197094A CN 108613110 A CN108613110 A CN 108613110A
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
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- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Polarising Elements (AREA)
Abstract
The embodiment of the invention discloses a kind of light-source system, automobile lighting system and control methods, wherein light-source system includes light source, the first polarization spectroscope, the second polarization spectroscope and spatial light modulator；The light source, for emitting illuminating bundle；First polarization spectroscope, the illuminating bundle for launching the light source are divided into the first polarised light and the second polarised light；Spatial light modulator described in light directing is polarized by described first, and the second polarization spectroscope of light directing is polarized by described second；The spatial light modulator is modulated for the first polarised light to importing；Second polarization spectroscope, for carrying out closing light light by second polarised light and through modulated first polarised light of the spatial light modulator.The embodiment of the present invention can avoid the loss for the illuminating bundle that light source sends out, and improve the utilization rate of light source.
Description
Technical field
The present invention relates to a kind of vehicle-mounted lighting technical field more particularly to light-source system, automobile lighting system and controlling parties
Method.
Background technology
From the acetylene gas headlamp of early stage, halogen tungsten lamp is arrived, xenon lamp, LED light by now and being not yet received is answered extensively
The development of laser car light, car headlamp achieves significant progress.In the prior art, automobile is during traveling,
The illuminating bundle that vehicle front lighting lamp system can be emitted by controlling light source, realizes the illumination to external environment, is convenient for driver
Road conditions are understood, to drive safely.
But inventor has found that there are following defects for the prior art during executing the present invention：In existing vapour
In vehicle lighting system, the illuminating bundle of light source transmitting cannot be all utilized, and therefore, reduce the utilization rate of light source, and waste
Resource.
Invention content
In view of this, a kind of light-source system of offer of the embodiment of the present invention, automobile lighting system and control method, to reduce light
The loss for the light beam that source is launched improves the utilization rate of light source.
In a first aspect, an embodiment of the present invention provides a kind of light-source systems, including：Light source, the first polarization spectroscope, second
Polarization spectroscope and spatial light modulator；
The light source, for emitting illuminating bundle；
First polarization spectroscope, the illuminating bundle for launching the light source are divided into the first polarised light and second
Polarised light；Spatial light modulator described in light directing is polarized by described first, and the polarization point of light directing second is polarized by described second
Light microscopic；
The spatial light modulator is modulated for the first polarised light to importing；
Second polarization spectroscope, for by second polarised light and through the spatial light modulator it is modulated
First polarised light carries out closing light light.
Second aspect, an embodiment of the present invention provides a kind of light-source systems, including：Light source, polarization spectroscope, spatial light tune
Device and phase-modulator processed；
The light source, for emitting illuminating bundle；
The polarization spectroscope, the illuminating bundle for launching the light source are divided into the first polarised light and second partially
Shake light；Spatial light modulator described in light directing is polarized by described first, and phase-modulation described in light directing is polarized by described second
Device；
The phase-modulator for second polarised light to be converted into third polarised light, and the third is polarized
The polarization state of spatial light modulator described in light directing, first polarised light and third polarised light is consistent；
The spatial light modulator, for importing first polarised light and the third polarised light adjust
System.
The third aspect, an embodiment of the present invention provides a kind of automobile lighting systems, including light provided in an embodiment of the present invention
Source system further includes detection device and control device；
The detection device is sent to the control device for obtaining traffic information, and by the traffic information；And
The control device, for according to the traffic information received, controlling the photograph that the light-source system sends out light source
Mingguang City's beam is modulated to convert different light illumination modes.
Fourth aspect, an embodiment of the present invention provides a kind of control method of automobile lighting system, the method is for controlling
Automobile lighting system provided in an embodiment of the present invention is made, including：
S1：Receive traffic information；
S2：According to the traffic information received, controls the light-source system and the illuminating bundle that light source is sent out is modulated
To convert different light illumination modes.
Technical solution provided in an embodiment of the present invention is emitted light source by the first polarization spectroscope in light-source system
Illuminating bundle is divided into the first polarised light and the second polarised light, by the first polarised light guide space optical modulator so that space light modulation
The first polarised light of device pair is modulated, and partially by the first polarised light after modulation and second without spatial light modulator modulation
The light that shakes carries out closing light, is emitted with to external ambient lighting；Or light source is sent out by the polarization spectroscope in light-source system
The illuminating bundle penetrated is divided into the first polarised light and the second polarised light；By the first polarised light guide space optical modulator, and by second
Polarization light directing phase-modulator with by the second polarised light be converted into the first consistent third polarised light of polarization polarization state, with
And by third polarised light guide space optical modulator, so that the first polarised light of spatial light modulator pair and third polarised light are adjusted
System is emitted the loss for the illuminating bundle for avoiding light source transmitting to be illuminated to external environment, improves light after modulation
The utilization rate in source.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon：
Fig. 1 a are a kind of structural schematic diagrams of light-source system provided in an embodiment of the present invention；
Fig. 1 b are the structural schematic diagrams of another light-source system provided in an embodiment of the present invention；
Fig. 2 a are the structural schematic diagrams of another light-source system provided in an embodiment of the present invention；
Fig. 2 b are the structural schematic diagrams of another light-source system provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of automobile lighting system provided in an embodiment of the present invention；
Fig. 4 a are the structural schematic diagrams of another automobile lighting system provided in an embodiment of the present invention；
Fig. 4 b are the structural schematic diagrams of another automobile lighting system provided in an embodiment of the present invention；
Fig. 5 is the control method flow chart of automobile lighting system provided in an embodiment of the present invention；
Fig. 6 is control principle drawing provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
In description, only some but not all contents related to the present invention are shown in the drawings.
Fig. 1 a are a kind of structural schematic diagram of light-source system provided in an embodiment of the present invention, as shown in Figure 1a, light-source system
Including：Light source 10, the first polarization spectroscope 211, the second polarization spectroscope 214 and spatial light modulator 20.
Wherein, light source 10, for emitting illuminating bundle；First polarization spectroscope 211, the illumination for launching light source
Light beam is divided into the first polarised light 100 and the second polarised light 200；By 100 guide space optical modulator 20 of the first polarised light, and by
Two polarised lights 200 are oriented to the second polarization spectroscope 214；Spatial light modulator 20 is carried out for the first polarised light 100 to importing
Modulation；Second polarization spectroscope 214, for by the second polarised light 200 and through spatial light modulator 20 modulated first it is inclined
The light that shakes carries out closing light light.Optionally, spatial light modulator 20 is LCD space light modulator.
On the basis of the above embodiments, as shown in Figure 1a, the light-source system further includes the first speculum 212 and second
Speculum 213.Wherein, the first speculum 212, for reflecting the second polarised light 200, so that the second polarised light 200 enters
It is mapped on the second speculum 213.Second speculum 213, the second polarised light 200 for reflecting the first speculum 212 carry out
Reflection, so that the second polarised light 200 imports the second polarization spectroscope 214.
It should be noted that exemplary anti-using the first speculum 212 and second shown in Fig. 1 a in the embodiment of the present invention
Mirror 213 is penetrated to reflect the second polarised light 200, so that the second polarised light 200 is incident on the second polarization spectroscope 214, but this reality
A kind of example that example is only the present invention is applied, in other embodiments of the invention, number of mirrors can also be other values, right
The quantity of speculum is not restricted, and the second polarised light 200 that can be emitted the first polarization spectroscope 211 reflects, with
The second polarised light 200 is set to import the second polarization spectroscope 214.
It should be noted that the embodiment of the present invention illustratively uses the first polarization spectroscope 211 shown in Fig. 1 a to the
The realization method that one polarised light 100 and the second polarised light 200 are transmitted, reflected respectively, but the first polarization spectroscope 211
The optical treatment form of the first polarised light 100 and the second polarised light 200 is not limited thereto respectively, it can also be according to light path
It needs to reflect the first polarised light 100, and the second polarised light 200 is transmitted.Similarly, the second polarization spectroscope
214 pair of second polarised light 200 can also use the optical treatment form transmitted and the second polarization spectroscope 214 to through space
The first polarised light that optical modulator 20 is modulated can also use the optical treatment form of reflection.
It should be noted that the embodiment of the present invention illustratively uses LCD space light modulator pair first shown in Fig. 1 a
Polarised light is modulated, and the processing form that the first polarised light of LCD space light modulator pair is transmitted, but is only this hair
A kind of bright example.In other embodiments of the present invention, liquid crystal on silicon spatial light modulator pair the first polarised light tune may be used
System, specifically, the processing form reflected using the first polarised light of liquid crystal on silicon spatial light modulator pair.In addition, when using
When liquid crystal on silicon spatial light modulator, as shown in Figure 1 b, light-source system can also include that the first polarization spectroscope 211, first is anti-
Penetrate mirror 212, the second polarization spectroscope 214 and spatial light modulator 20, wherein as shown in Figure 1 b, light-source system includes only
The quantity of first speculum 212, speculum is 1.Optionally, spatial light modulator 20 is liquid crystal on silicon spatial light modulator,
And the first polarised light 100 of importing is reflected, so that modulated first polarised light imported into the second polarization spectroscope
214, the second polarised light 200 is reflected through the first speculum 212, imported into the second polarization spectroscope 214, the second polarization spectroscope
Modulated first polarised light and the second polarised light are carried out closing light by 214.Light-source system can also use other structure types,
It can realize the function of light-source system shown in Fig. 1 a.
It should be noted that the present embodiment spatial light modulator not and is limited as LCD space light modulator and silicon substrate liquid
Brilliant spatial light modulator or other kinds of modulator.
In the present embodiment, due to spatial light modulator be LCD space light modulator or liquid crystal on silicon spatial light modulator,
Polarised light can be modulated, by the first polarization spectroscope by the illuminating bundle that light source is sent out be divided into the first polarised light and
Second polarised light, and by the first polarised light guide space optical modulator, so that the first polarised light of spatial light modulator pair is adjusted
System, can reduce the loss for the light beam for importeding into spatial light modulator；And it will be after modulation by the second polarization spectroscope
First polarised light and the second non-modulated polarised light carry out closing light, and non-modulated polarised light is also utilized, therefore,
The loss for reducing non-polarized light in the illuminating bundle that light source is sent out improves the utilization rate of light source.And by the light source system
When system is to external ambient lighting, the brightness value of dark space is the half of illumination region brightness value.
Fig. 2 a are a kind of structural schematic diagrams of light-source system provided in an embodiment of the present invention.As shown in Figure 2 a, light source 10, partially
Shake spectroscope 215, spatial light modulator 20 and phase-modulator 217；
Wherein, light source 10, for emitting illuminating bundle；Polarization spectroscope 215, the illumination light for launching light source 10
Beam is divided into the first polarised light 300 and the second polarised light 400；By 300 guide space optical modulator 20 of the first polarised light, and by
Two polarised lights 400 are oriented to phase-modulator 217；Phase-modulator 217, for the second polarised light 400 to be converted into third polarization
Light 500, and by 500 guide space optical modulator 20 of third polarised light, the polarization of the first polarised light 300 and third polarised light 500
State is consistent；Spatial light modulator 20 is modulated for the first polarised light 300 and third polarised light 500 to importing.It is optional
, spatial light modulator 20 is LCD space light modulator.Optionally, phase-modulator 217 include half-wave plate or four/
One wave plate.
Specifically, first polarised light 300 is P light, second polarised light 400 is S light, when second polarised light
For 400 (S light) after the modulation of phase-modulator 217, can be obtained has the third of corresponding polarization state inclined to the first polarised light 300
Shake light 500, and in other words, the third polarised light 500 is also P light.
On the basis of the above embodiments, as shown in Figure 2 a, the light-source system further includes speculum 216, speculum
216, the second polarised light 400 for polarization spectroscope 215 to be emitted reflects, so that the second polarised light 400 imports phase
Modulator 217.
It should be noted that exemplary in the embodiment of the present invention use speculum 216 shown in Fig. 2 a to the second polarised light
400 reflections, so that the second polarised light 400 is imported into phase-modulator 217, but the present embodiment is only that one kind of the invention is shown
Example, in other embodiments of the invention, number of mirrors can also be other values, is not intended to limit to the quantity of speculum, energy
It is enough to reflect the second polarised light 400 that polarization spectroscope 215 is emitted, so that the second polarised light 400 imported into phase-modulation
Device 217.
It should be noted that the embodiment of the present invention illustratively uses polarization spectroscope 215 shown in Fig. 2 a inclined to first
Shake the realization method that light 300 and the second polarised light 400 transmitted, reflected respectively, but polarization spectroscope 215 is respectively to first
The optical treatment form of polarised light 300 and the second polarised light 400 is not limited thereto, and can also be needed to first according to light path
Polarised light 300 is reflected, and is transmitted to the second polarised light 400.
It should be noted that the embodiment of the present invention illustratively uses the first polarised light that polarization spectroscope 215 will be divided into
300 guide space optical modulators 20, and by the optical treatment mode of the second polarised light 400 guiding phase-modulator 217, still
The present embodiment is only a kind of example of the present invention, in other embodiments of the invention, can also use polarization spectroscope will
The first polarization light directing phase-modulator being divided into, and by the optical treatment side of the second polarised light guide space optical modulator
Formula has no effect on the function of light-source system.
It should be noted that the embodiment of the present invention illustratively uses LCD space light modulator pair first shown in Fig. 2 a
Polarised light and third polarised light are modulated, and the first polarised light of LCD space light modulator pair and third polarised light are adopted
With the processing form of transmission, but it is only that silicon substrate liquid may be used in other embodiments of the present invention in a kind of example of the present invention
The first polarised light of brilliant spatial light modulator pair and third polarised light are modulated, specifically, using liquid crystal on silicon spatial light tune
The first polarised light of device pair and third polarised light processed are all made of the processing form of reflection.When using liquid crystal on silicon spatial light modulator
When, the structural schematic diagram of light-source system is as shown in 2b.And light-source system can also use other structure types, can realize
The function of light-source system shown in Fig. 2 a.
In the present embodiment, the illuminating bundle that light source is sent out is divided into partially by the first polarised light and second by polarization spectroscope
Shake light, and by the first polarised light guide space optical modulator, and is converted into the second polarised light and the by phase-modulator
The consistent third polarised light of one polarization polarization state, and by third polarised light guide space optical modulator, so that space light modulation
The first polarised light of device pair and third polarised light are modulated.Accordingly, with respect to the illumination in the prior art directly sending out light source
For beam direction spatial light modulator, the loss of non-polarized light in the illuminating bundle that light source is sent out is avoided, light source is improved
Utilization rate, and dark space and illumination region in external environment is made to realize maximum contrast.
Fig. 3 is a kind of structural schematic diagram of automobile lighting system provided in an embodiment of the present invention, and automobile lighting system includes
Light-source system further includes detection device 30 and control device 40.Wherein, detection device 30, for obtaining traffic information, and will
Traffic information is sent to the control device 40；Control device 40, for according to the traffic information received, controlling light-source system
The illuminating bundle that light source 10 is sent out is modulated to convert different light illumination modes.
Optionally, as shown in figure 3, light-source system includes light source 10, the first polarization spectroscope 211, the second polarization spectroscope
214 and spatial light modulator 20, optionally, spatial light modulator 20 is LCD space light modulator.
On the basis of the above embodiments, as shown in figure 3, automobile lighting system further includes lens group 50, lens group 50 is used
It is polarized with second modulated without the spatial light modulator 20 in collecting the first polarised light modulated through spatial light modulator 20
The light beam of light combination that light is formed, and the light beam of collection is extended and the light beam of extension is made to be emitted with predetermined angle, with to outside
Environment is illuminated.Light-source system further includes the first speculum 212 and the second speculum 213.Wherein, in light-source system and Fig. 1 a
Shown in light-source system structure it is identical.And the quantity of speculum is not restricted.
As shown in figure 3, the course of work of above-mentioned automobile lighting system is as follows：First polarization spectroscope 211 is by light source 10
The illuminating bundle launched is divided into the first polarised light 100 and the second polarised light 200, and the first polarised light 100 is transmitted,
So that the first polarised light 100 imports spatial light modulator 20, and the second polarised light 200 is reflected, so that the second polarization
Light 200 imports the first speculum 212.First polarised light 100 imported into the second polarization spectroscope after spatial light modulator 20
214；Second polarised light 200 imported into the second polarization spectroscope 214 through the first speculum 212, the second speculum 213.Second partially
The second polarization that the spectroscope 214 that shakes reflects the first polarised light and the second speculum 213 modulated by spatial light modulator 20
Light 200 carries out closing light, and is emitted with predetermined angle after the extension of lens group 50, to be illuminated to external environment.
Wherein, the traffic information that control device 40 is sent according to detection device 30, control light-source system send out light source 10
Illuminating bundle be modulated to convert different light illumination modes.Specifically, the control of control device 40 spatial light modulator 20 is right
The first polarised light 100 imported is modulated, the luminance state information of the first polarised light after being modulated with control.Specifically
, control device 40 can control the closing of the pixel unit corresponding with traffic information in spatial light modulator 20, be adjusted with controlling
The selective illumination to external environment is realized in the distributed intelligence of light in the first polarised light after system.Or control device 40
The light transmittance that pixel unit corresponding with traffic information in spatial light modulator 20 can be controlled, first after being modulated with control
The brightness value of polarised light realizes the modulation to brightness.As shown in figure 3, when corresponding with traffic information in spatial light modulator 20
Pixel unit close when, by the pixel unit the first polarised light brightness be 0, then because the second polarised light can be from lens
The all outgoing of group 50, therefore the brightness value in external environment corresponding with pixel unit region is one of pixel unit when being not turned off
Half.
By above-mentioned automobile lighting system, as a result of light processor, non-polarized light in illuminating bundle is avoided
Loss, improve the utilization rate of light source.
As shown in figure 3, in above-mentioned automobile lighting system, further alternative, light source 10 includes laser 101 and wave
Long conversion equipment 102.Wherein, laser 101, for emitting exciting light；Optionally, exciting light can be blue laser or purple
Outer laser.Wavelength converter 102, the exciting light for absorbing the transmitting of laser 101 generate stimulated light, and stimulated light are made
For illuminating bundle.Optionally, Wavelength converter 102 is transmission-type fluorescence colour wheel, and is coated with yellow fluorescent material, when blue swashs
Light is incident on fluorescence colour wheel, and yellow fluorescent material absorbs blue laser, generates yellow fluorescence.Fluorescence is controlled by control device
The rotating speed of colour wheel controls the ratio of unabsorbed blue laser and yellow fluorescence, exports white light or sodium yellow.Wherein, light
Source can also include only laser, and other structures can also be used to realize transmitting sodium yellow or white light light source
Different mode.
Optionally, detection device 30 is by infrared camera, ultrasonic sensor, detection radar, laser radar or microwave thunder
Up at least one of or two kinds combination (being not shown in Fig. 4).Detection device can shoot image information and the acquisition of road
Weather information.Wherein, Weather information carries visibility information, humidity information, weather state information of weather etc..Wherein detection dress
It can also includes other devices to set 30, it is not limited to above-mentioned structure.When the traffic information that detection device 30 detects includes day
When gas information, control device 40 is additionally operable to control the luminescent color of light source according to Weather information, to realize different luminous moulds
Formula, wherein can be white light patterns or yellow light pattern.For example, when Weather information carries the low information of air visibility, control
Device 40 processed controls light source 10 and sends out yellow light；When the high information of carrying air visibility in Weather information, control device 40 is controlled
Light source 10 processed sends out white light.It wherein, can also be by the instruction that driver inputs to control for the white light of light source or yellow light pattern
Device 40 processed is controlled.
It should be noted that the embodiment of the present invention illustratively uses automobile lighting system as described in Figure 3 to external rings
Border is illuminated, but the automobile lighting system that the present embodiment Fig. 3 is provided is a kind of example, in other embodiments of the invention
In, automobile lighting system shown in Fig. 3 can also include the optical textures such as light collecting lens, even light unit, relay lens, or also wrap
Include other optical textures.
It should be noted that in automobile lighting system, the embodiment of the present invention illustratively uses liquid crystal shown in Fig. 3 empty
Between the first polarised light of optical modulator pair be modulated, and the processing shape that the first polarised light of LCD space light modulator pair is transmitted
Formula, but the present embodiment is only that liquid crystal on silicon space may be used in other embodiments of the present invention in a kind of example of the invention
The first polarised light of optical modulator pair is modulated, specifically, being carried out using the first polarised light of liquid crystal on silicon spatial light modulator pair
The processing form of reflection.And the automobile lighting system in the embodiment of the present invention may include light-source system as shown in Figure 1 b,
Or the light-source system of other structures can also be included, it can realize the function with light-source system shown in Fig. 1 a.
Fig. 4 a are the structural schematic diagrams of another automobile lighting system provided in an embodiment of the present invention.As shown in fig. 4 a, vapour
Vehicle lighting system includes light-source system, detection device 30 and control device 40.Wherein, detection device 30, for obtaining road conditions
Information, and traffic information is sent to the control device 40；Control device 40, for according to the traffic information received, control
The illuminating bundle that light-source system processed sends out light source 10 is modulated to convert different light illumination modes.
As shown in fig. 4 a, optionally, light-source system include light source 10, polarization spectroscope 215, phase-modulator 217 and
Spatial light modulator 20.Optionally, spatial light modulator 20 is LCD space light modulator.
On the basis of the above embodiments, as shown in fig. 4 a, the automobile lighting system further includes lens group 50, lens group
50, for will collect the first polarised light modulated through spatial light modulator 20 and third polarised light, and partially to the first of collection
It shakes light and the second polarised light is extended, and be emitted with predetermined angle to be illuminated to external environment.As shown in fig. 4 a,
Light-source system further includes speculum 216.Wherein, light-source system is identical as light-source system structure shown in Fig. 2 a.
As shown in fig. 4 a, the course of work of above-mentioned automobile lighting system is as follows：Polarization spectroscope 215 sends out light source 10
Illuminating bundle be divided into the first polarised light 300 and the second polarised light 400, and the first polarised light 300 is transmitted, so that
One polarised light 300 imports spatial light modulator 20；And reflect the second polarised light 400, so that the second polarised light 400 is led
Enter speculum 216.Second polarised light 400 imported into phase-modulator 217 after the reflection of speculum 216, and phase-modulator 217 will
The second incident polarised light 400 is converted into third polarised light 500.First polarised light 300 and third polarised light 500 are through spatial light tune
After device 20 processed is modulated, then it is emitted through lens group 50.
Wherein, control device 40 control spatial light modulator 20 in light-source system to the of importing according to traffic information
One polarised light 300 and third polarised light 500 are modulated, the first polarised light after being modulated with control and third polarised light
Luminance state information.As shown in fig. 4 a, control device carries out selective photograph according to traffic information, control automobile lighting system
It is bright, or carry out the modulation of brightness, the selective illumination of the automobile lighting system of control principle as shown in figure 3 or brightness
The principle of modulation is identical, is not repeated.As shown in fig. 4 a, when pixel unit corresponding with traffic information in spatial light modulator
When closing, the brightness by the first polarised light and third polarised light of the pixel unit is 0, then corresponding with the pixel unit
The brightness value in external environment region is 0.As a result, by above-mentioned automobile lighting system, dark space in external environment can be realized
Brightness of illumination is 0；And reduces the loss of non-polarized light in the illuminating bundle that light source is sent out, ensure lighting area in external environment
The high brightness of illumination in domain, and realize dark space and the maximum contrast of illumination region, avoid on road pedestrian or other
The influence of vehicle.
As shown in fig. 4 a, the light source in the automobile lighting system of light source, detection device as shown in figure 3, detection device knot
Structure is identical, and control device can control light source according to traffic information and realize different light-emitting modes, to the control principle of light source
The control principle of light source is identical in automobile lighting system as shown in figure 3, is not repeated.
It should be noted that automobile lighting system is included illustratively light source system shown in Fig. 2 a by the embodiment of the present invention
System, but be only a kind of example of the present invention, in other embodiments of the present invention, automobile lighting system can also include Fig. 2 b institutes
The light-source system shown.When light-source system shown in automobile lighting system includes Fig. 2 b, structure such as Fig. 4 b of automobile lighting system
It is shown, wherein spatial light modulator 20 is liquid crystal on silicon spatial light modulator, and spatial light modulator 20 to the first polarised light and
Third polarised light is using the processing mode reflected, so that the first polarised light and third after modulation polarize light directing lens group
50.And automobile lighting system can also include the light-source system of other structures, can realize light-source system shown in Fig. 2 b
Function.
Fig. 5 is the control method flow chart of automobile lighting system provided in an embodiment of the present invention, and wherein method is used for this hair
The automobile lighting system that bright embodiment provides, method specifically include：
S1：Receive traffic information.
S2：According to the traffic information received, controls the light-source system and the illuminating bundle that light source is sent out is modulated
To convert different light illumination modes.
In the present embodiment, optionally, when traffic information includes the location information of pedestrian or vehicle, the step S2
Including：According to the pedestrian either vehicle location information control spatial light modulator in the pedestrian or the position of vehicle
Corresponding pixel unit is set, to be modulated to the first polarised light for importeding into the spatial light modulator, to control modulation
The luminance state information of the first polarised light afterwards is to carry out selective illumination pattern.Either according to the pedestrian or the position of vehicle
Confidence ceases, and pixel unit corresponding with the position of the pedestrian or vehicle in spatial light modulator is controlled, with to importeding into
The first polarised light and third polarised light in spatial light modulator is stated to be modulated, with control modulate after the first polarised light and
The luminance state information of third polarised light is to carry out selective illumination pattern；Wherein, luminance state information include brightness value and
The distributed intelligence of light.
Specifically, as shown in fig. 6, when pixel unit corresponding with pedestrian or vehicle position information is closed, by this
The brightness of the polarised light of pixel unit is 0, except automobile lighting system, by the pixel unit equivalent with the pixel unit
The brightness of 201 emergent light is also 0, then to the region 2 where external pedestrian 202 or the region 3 where vehicle 203 not into
Row illuminates, not influence the traveling of pedestrian 202 or vehicle 203.Either can also pair with pedestrian or vehicle position information pair
The pixel unit modulation transmissivity answered, keeps the brightness of the polarised light by the pixel unit smaller, so that external pedestrian location
The brightness of illumination in the region where domain or vehicle is smaller.
Optionally, when traffic information includes guideboard information, step S2 includes：According to the guideboard information, space is controlled
The first pixel unit corresponding with guideboard information is previously switched off in optical modulator, so as to imported into the first of spatial light modulator
Light beam in polarised light periodically passes through first pixel unit, to carry out periodical photograph to the position of guideboard in guideboard information
It is bright；Or according to the guideboard information, it is periodical to control the second pixel unit corresponding with guideboard information in spatial light modulator
It closes, so that the light beam importeding into the first polarised light and third polarised light of spatial light modulator periodically passes through described second
Pixel unit, to carry out periodical illumination to the position of guideboard in guideboard information.When the first pixel unit or the second pixel list
When member is previously switched off, the position where guideboard corresponding with the first pixel unit or the second pixel unit occurs periodic
Light and shade changes, and to prompt driver to pay close attention to the information in guideboard position, ensures traffic safety.
Further, when traffic information includes Weather information, the method further includes：According to Weather information, light is controlled
Launch the illuminating bundle with Weather information corresponding color in source.Specifically, when Weather information carries the low information of air visibility
When, the illuminating bundle of control light source transmitting yellow；When Weather information carries the high information of air visibility, control light source transmitting
Go out the illuminating bundle of white.Or it can also be other forms.
Further, the method further includes：The instruction of input is obtained, and spatial light tune is controlled according to the instruction of input
Device processed to be modulated to importing the first polarised light, or is modulated the first polarised light and third polarised light of importing.Its
In, the instruction of input can be that the setting illumination that driver inputs in the control interface or control button on control device is bright
The instruction of degree can also be the instruction of the selective illumination of driver's input, or can also be other instructions.
It can automatically be carried out according to the information of road conditions by control device accordingly, for the control mode to spatial light modulator
Control can be controlled according to the instruction that driver inputs.For the control mode of spatial light modulator can as needed into
Row selection.
A kind of control method of automobile lighting system is present embodiments provided, by according to traffic information, controlling the light
Source system is modulated the illuminating bundle that light source is sent out to convert different light illumination modes, can be as needed to external environment
It is illuminated, ensures traffic safety.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments here, can carry out for a person skilled in the art it is various it is apparent variation, again
Modulation and replacement are without departing from protection scope of the present invention.Therefore, although by above example to the present invention carried out compared with
For detailed description, but the present invention is not limited only to above example, without departing from the inventive concept, can be with
Including other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (12)
1. a kind of light-source system, which is characterized in that including：Light source, the first polarization spectroscope, the second polarization spectroscope and space
Optical modulator；
The light source, for emitting illuminating bundle；
First polarization spectroscope, the illuminating bundle for launching the light source are divided into the first polarised light and the second polarization
Light；Spatial light modulator described in light directing is polarized by described first, and the second polarization spectroscope of light directing is polarized by described second；
The spatial light modulator is modulated for the first polarised light to importing；
Second polarization spectroscope, for by second polarised light and through the spatial light modulator modulated first
Polarised light carries out closing light light.
2. light-source system according to claim 1, which is characterized in that further include an at least speculum；
An at least speculum, the second polarised light for first polarization spectroscope to be emitted reflects, so that institute
It states the second polarised light and imports second polarization spectroscope.
3. light-source system according to claim 1, which is characterized in that the spatial light modulator is liquid crystal spatial light modulation
Any one of device or liquid crystal on silicon spatial light modulator.
4. a kind of light-source system, which is characterized in that including：Light source, polarization spectroscope, spatial light modulator and phase-modulation
Device；
The light source, for emitting illuminating bundle；
The polarization spectroscope, the illuminating bundle for launching the light source are divided into the first polarised light and the second polarization
Light；Spatial light modulator described in light directing is polarized by described first, and phase-modulator described in light directing is polarized by described second；
The third for second polarised light to be converted into third polarised light, and is polarized light guide by the phase-modulator
To the spatial light modulator, the polarization state of first polarised light and third polarised light is consistent；
The spatial light modulator, for importing first polarised light and the third polarised light be modulated.
5. light-source system according to claim 4, which is characterized in that further include an at least speculum；
An at least speculum, the second polarised light for the polarization spectroscope to be emitted reflect, so that described
Two polarised lights import the phase-modulator.
6. light-source system according to claim 4, the spatial light modulator is LCD space light modulator or silicon substrate liquid
Any one of brilliant spatial light modulator.
7. a kind of automobile lighting system, which is characterized in that include the light-source system as described in claim 1-6 is any, further include
Detection device and control device；
The detection device is sent to the control device for obtaining traffic information, and by the traffic information；And
The control device, for according to the traffic information received, controlling the illumination light that the light-source system sends out light source
Beam is modulated to convert different light illumination modes.
8. automobile lighting system according to claim 7, which is characterized in that the light source includes laser or laser
With the combination of Wavelength converter, wherein：
The laser, for emitting exciting light；
The Wavelength converter, the exciting light for absorbing laser transmitting generate stimulated light, and using stimulated light as
Illuminating bundle.
9. automobile lighting system according to claim 7, which is characterized in that the detection device is by infrared camera, super
At least one of sonic sensor, detection radar, laser radar or microwave radar or two kinds of combinations.
10. a kind of control method of automobile lighting system, the method is used to control the automobile as described in claim 7-9 is any
Lighting system, which is characterized in that including：
S1：Receive traffic information；
S2：According to the traffic information received, controls the light-source system and the illuminating bundle that light source is sent out is modulated to become
Change different light illumination modes.
11. according to the method described in claim 10, it is characterized in that, when traffic information includes the position letter of pedestrian or vehicle
When breath, the step S2 includes：
According to the pedestrian either vehicle location information control spatial light modulator in the pedestrian or the position of vehicle
Corresponding pixel unit, to be modulated to the first polarised light for importeding into the spatial light modulator, after being modulated with control
The first polarised light luminance state information to carry out selective illumination pattern；Or
According to the pedestrian either vehicle location information control spatial light modulator in the pedestrian or the position of vehicle
Corresponding pixel unit, to be modulated to importeding into the first polarised light and third polarised light in the spatial light modulator, with
The luminance state information of the first polarised light and third polarised light after control modulation is to carry out selective illumination pattern；Wherein,
Luminance state information includes the distributed intelligence of brightness value and light.
12. according to the method described in claim 10, it is characterized in that, when traffic information includes guideboard information, the step
S2 includes：
According to the guideboard information, controls the first pixel unit corresponding with guideboard information in spatial light modulator and periodically close
It closes, so that the light beam importeding into the first polarised light of the spatial light modulator periodically passes through first pixel unit,
To carry out periodical illumination to the position of guideboard in guideboard information；Or
According to the guideboard information, controls the second pixel unit corresponding with guideboard information in spatial light modulator and periodically close
It closes, so that the light beam that imported into the first polarised light and third polarised light of the spatial light modulator is periodically by described the
Two pixel units, to carry out periodical illumination to the position of guideboard in guideboard information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197094.1A CN108613110B (en) | 2016-12-22 | 2016-12-22 | Light source system, automobile lighting system and control method |
| PCT/CN2017/109322 WO2018113424A1 (en) | 2016-12-22 | 2017-11-03 | Light source system, automotive illuminating system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197094.1A CN108613110B (en) | 2016-12-22 | 2016-12-22 | Light source system, automobile lighting system and control method |
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| Publication Number | Publication Date |
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| CN108613110B CN108613110B (en) | 2020-06-02 |
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| WO (1) | WO2018113424A1 (en) |
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| WO2018113424A1 (en) | 2018-06-28 |
| CN108613110B (en) | 2020-06-02 |
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