CN109838748A - A kind of adaptive road function adjusting method and its car light - Google Patents
A kind of adaptive road function adjusting method and its car light Download PDFInfo
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Abstract
A kind of adaptive road function adjusting method and car light, the periodically high speed variation for passing through light shape form superposition illumination light shape.The periodically high speed variation of the smooth shape can be change in shape (dynamic of light shape is superimposed) or change in location or the two while change.The cyclically-varying of present invention combination light shape, which combines, rapidly switches off light source implementation, generates one or several local dark space, realizes adaptive road function.Such as, close to parallel radiation after the class Lambertian divergent rays collimation for being issued LED light source by optical lens, primary light shape is formed on the screen of front, light source is set to carry out lateral displacement relative to lens, secondary light shape is formed, so that light source is turned off when running to a certain position, remaining position is open state, so that correspond to scram position when front vertical screen on formed have dark space light shape, to realize adaptive road function.Smaller dark space may be implemented in the present invention, significantly improves the control precision of adaptive distance light.
Description
Technical field
The present invention relates to car lights, in particular it relates to a kind of adaptive road function adjusting method and its new car
Lamp system, the adaptive road function adjusting method and its lamp system pass through the quick variation and superposition of light shape, and combine
The adaptive road function of car light is realized to the quick open and close control of light source.
Background technique
As security issues become increasingly urgent for vehicle travel at night, the adaptive road function technology of novel intelligent car light is mentioned
Higher requirement out, the adaptive road function technology of so-called novel intelligent car light mainly to realize AFS and ADB function simultaneously
For the purpose of the light type developed can be changed car light.
For example, lamp system uses the headlight with ADB function, and cooperate the detection system of vehicle, finds road in detecting
When on the road in other a certain regions of participant (such as opposite, vehicles or pedestrians travelled in the same direction etc.) in headlamp illumination, institute
The brightness of illumination in the section can intelligently be adjusted by stating lamp system, avoid forming illuminated person it is dangerous dazzling, meanwhile, to not having
There is the space of other roads participant to continue to keep the illumination of high brightness.It both can guarantee that we (it is adaptively big to carry LED as a result,
The driver of lamp) front high quality illumination, and will not to other participants on road (such as it is opposite, in the same direction travel
Vehicles or pedestrians etc.) the dazzling of danger is formed, it ensure that the nighttime driving safety of each side on road.
So-called ADB function, the most ideal situation is that, only have other side driver in different positions by the dark space that intelligent headlight is formed
The size on head when setting, other spaces still keep highlight illumination when absolutely not target, and such other side will not be dazzling,
We can also illuminate any region on travel route as far as possible.
Adaptive distance light generally passes through camera or other sensing apparatus determine road conditions, then calculate to be covered it is dark
Area.So unlatching, the closing to light source are converted according to road conditions.But the basis of adaptive distance light is exactly to realize that part is dark
Area.
It is the so-called matrix headlight based on MATRIX technology, this technical solution as one of existing solution
The illumination space of entire headlamp is divided into continuous different block, each block is responsible for illumination by the different LED of quantity,
By extinguishing the LED of particular block, minimum about 1 ° of dark space can be provided.
For example, application number 201210421033.4 discloses a kind of headlight projection module, [0010] is described in key light
Other requirements in terms of the construction of unit and the list projected on lane from the light distribution of generation in the sight of driver
The angular range of a regional area is related.Therefore, the pixel of imaging should be for example only with the angular width of several years (such as 1 °).Imaging
Pixel vertical angles range it is only slightly bigger.Therefore, by targetedly manipulating the one or more of headlight module
The light distribution of light emitting diode, generation especially can subtly change, such as realizing local road function or mark light function.
By targetedly extinguishing single light emitting diode in local road function, the detection of the light distribution of generation can be covered
The region of other traffic participants is arrived.By targetedly activating single light emitting diode in mark light function,
Motor vehicle front targetedly irradiates the target detected, so that the driver of motor vehicle pays attention to.
In another example application No. is 201410445932.7 Chinese patent, disclose a kind of used in automotive headlight
Projection optics in LED module.LED module includes the light source in the form of LED matrix, which includes multiple matrixes
The LED chip being arranged side by side and/or with being overlapped mutually each other likes；Primary optics, the primary optics include multiple
The primary optical element being arranged side by side and/or with being overlapped mutually each other to matrix form is gathered for making by the light that light source is launched；
And projection optics.The outgoing plane of primary optics is projected the driving before motor vehicle by the projection optics
On road, to generate scheduled light distribution.
Application No. is a kind of optical modules of front headlight of motor vehicle of 201510036140.9 patent disclosures.The optical module includes:
It is multiple in it is rectangular side by side and/or overlap, single semiconductor light source controllable, for emitting beam；It is multiple right
Should in it is these semiconductor light sources, rectangular side by side and/or the main optical unit that overlaps, be used to will at least part by
The light constriction that semiconductor light source issues gets up, and is used to generate main light distribution on the light gasing surface of main optical unit；
And a common secondary optics unit, so that main light distribution is distributed on the lane of motor vehicle front this as secondary light
Sample imaging, illuminates secondary light distribution by remote zones.
However, above-mentioned patent is realized adaptively by the static shutdown of light emitting diode (i.e. LED luminescence chip)
Dark space required for road function, has a disadvantage in that:
1, the pixel number of imaging is opposite with LED core the piece number etc., when if you need to realize higher pixel, corresponding LED core the piece number
Also more, corresponding control circuit board is also more complicated, and the complexity and manufacture difficulty of the optical conductor of the main optical unit are big
It is big to rise, and lead to cost increase.In addition, being limited by car light space, the usage quantity of LED chip also has its limit, causes
The pixel number of headlight projection module is limited.
2, it is existing to realize this adjustable lamps and lanterns of range of exposures including above-mentioned matrix headlight technical solution, there is also
One common problem, that is, the minimum angles that system forms dark space are still too big.That is, although the dark space formed can
So that the driver of target vehicle is not dazzling, but the range of dark space also substantially exceeded target needed for vehicle width, cause
We needs the loss of illumination region.Such as above-mentioned matrix headlight, minimum can provide 1 ° of dark space.The reality of the dark space
Transverse width wishes at play a role 400 meters that the width of dark space is depending on target and our distance, such as in ADB
(400 meters of 1 ° of * tan)=6.98 meters, and about 1.9 meters of practical vehicle width (by taking ordinary passenger car as an example), it is clear that dark space is excessive.
3, current lamp system is all to control realization brightness regulation, but light shape by static schema, or by duty ratio
Itself does not change.
It is exactly the realizing linear reciprocating translation of light shape as the fast-changing special state of light shape, when to each movement of light shape
The same position implementation in period rapidly switches off, so that it may realize part dark space required for adaptive distance light.Although Fast transforms
And light source is quickly opened, closes control it has been reported that but should not report for the purpose of realizing adaptive distance light dark space.
Summary of the invention
To solve the above problems, present invention aims at: a kind of adaptive road function adjusting method and its novel is provided
Lamp system, the adaptive road function adjusting method and its lamp system pass through the quick variation and superposition of light shape, and tie
The quick open and close control to light source is closed to realize the adaptive road function of car light.
The present invention is different from traditional static car light function, quickly changed by dynamic light shape and formed superimposed light shape come
Realize car light function.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention can be realized larger by less LED luminescence chip
Illumination region.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention realize photic-energy transfer by the superposition of dynamic optical shape
Control, may be implemented that the ideal center of far lighting is bright, and gradually dimmed illumination light shape.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention, help to improve adaptive after dynamic change and superposition
Answer distance light uniformity.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention shine with the existing more LED to be arranged by matrix
Chip combines the adaptive road function of static shutdown to compare, and smaller dark space may be implemented, and can significantly improve adaptive remote
The control precision of light.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention, can by matrix arrange multiple independent switches can
The multi-chip of control jointly controls, and forms matrix light shape.
The object of the invention also resides in: a kind of adaptive road function adjusting method and its car lamp system are provided, according to
Adaptive road function adjusting method and its lamp system of the present invention, using plurality of LED luminous chip, and relative lens or
Lens group focus carries out front and back defocus, and the adaptive road function that can carry out multidimensional is adjusted, that is, different in front of car light for being located at
The object up and down of distance implements adaptive road function control simultaneously respectively.
A kind of technical solution of the adaptive road function adjusting method of car light of the invention is as follows:
A kind of adaptive road function adjusting method of car light, which is characterized in that pass through the periodically high speed variation shape of light shape
At superposition illumination light shape, the periodically high speed variation of the smooth shape can be change in shape, i.e. the dynamic superposition of light shape or position
Variation or the two change simultaneously.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that in conjunction with the week of light shape
The variation of phase property, which combines, rapidly switches off light source implementation, generates one or several local dark space, realizes adaptive road function.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that pass through optical lens
The class Lambertian divergent rays that LED light source issues are collimated, formation connects subparallel illuminating ray, and the illuminating ray exists
A hot spot and its primary light shape are formed on the vertical screen of front, primary light shape is the primary strong light being formed in around a hot spot
Spot,
So that light source is carried out lateral displacement relative to lens, form secondary hot spot and its continuous secondary light shape,
It is superimposed to form far lighting light shape by the dynamic of primary light shape and secondary light shape, the primary light shape and secondary light
The dynamic superposition of shape includes the superposition of light shape change in shape or change in location.
The as shown in Figures 2 to 4 and two methods as shown in Fig. 6 to 12.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that on this basis,
So that light source is turned off when running to a certain position in each period, remaining position is open state, so that right
The light shape with dark space should be formed on front vertical screen when the position, thus realize adaptive road function,
That is ADB function,
That is, the light shape by dynamic mobile to form local dark space in conjunction with to rapidly switching off for light source, realize adaptive remote
Light function.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that the dark space includes:
Formed in the light source moving process, positioned at primary light shape and light source moving displacement to a certain position when the corresponding dark space of shutdown
Between transition dark space, i.e., true dark space corresponding to low bright transition region and light source moving displacement.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that in light source and lens
Between increase secondary light-distribution part, for carrying out the change of light shape and position to primary light shape.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that light source a certain
Transverse area carries out quick straight line shift reciprocately, forms continuous illumination light shape.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that using rotation light source
Device makes light source carry out quick straight line shift reciprocately relative to lens.
A kind of adaptive road function adjusting method of car light according to the present invention, which is characterized in that the rotation light source
System forms light source assembly by the reflective chip of LED, metal substrate, so that light source assembly carries out high speed with light-emitting surface normal direction rotary shaft
Rotation, the speed can recognize frequency not less than naked eyes.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that LED luminescence chip
Motion frequency is 50-500 hertz, and cut-offfing frequency is 1000-50000 hertz.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that light source is relative to saturating
Mirror carries out displacement and refers to that conversion frequency is greater than the frame number that human eye can identify, specifically, is greater than 30 frame per second.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that in the light source of light source
Light emission side setting includes the intelligence of PBS optical splitter, camera CMOS chip and imaging lens group in front of corresponding lens or lens group
Light control system can be illuminated, the adaptive road function of car light is carried out and adjusts,
The intelligent lighting light control system include the LCD liquid crystal display for being set to PBS optical splitter lens opposite side, LCOS chip or
Dmd chip, LCD are controlled by liquid crystal technology, and for LCOS by reflection type liquid crystal technique, DMD is real by micro-reflector wafer technology
Existing dark space；
Light a part that the intelligent lighting light control system issues is through PBS optical splitter and is irradiated to imaging lens group,
Ultimately form illumination light shape；
Another part light that the intelligent lighting light control system issues through PBS spectrophotometric reflection to camera CMOS core
The opposite direction of piece is mapped to CMOS chip to avoid the illumination of lighting system, generates interference to CMOS chip；
And environment light is then redirected back into the imaging lens group with illumination path,
A part of light of environment light forms information source by PBS spectrophotometric reflection to sensitive chip integrated circuit, passes through
Sensitive chip integrated circuit CMOS chip, for converting optical signals to electric signal, arithmetic system is obtained by analyzing electric signal
Conclusion, and operation result is transferred to the execution system of the control circuit board including LCD, LCOS, dmd chip, carry out analysis and
After processing, the information such as road vehicles, pedestrian are judged, and control intelligent lighting light control system and carry out adaptive road function adjusting
Control.
A kind of adaptive road function adjusting method according to the present invention, which is characterized in that the PBS optical splitter setting
In the focus or focal plane of imaging lens group, camera and car light, intelligent lighting light control system and PBS optical splitter share one
Lens group.
The adaptive road function adjusting method of a kind of car light according to the present invention, which is characterized in that the LED of light source shines
Chip be more LED luminescence chips, can facing light sources lens or lens group focus carry out front and back defocus 0-5mm, to carry out multidimensional
Adaptive road function adjust.
One kind having adaptive road function car light, which is characterized in that the class for being issued LED light source by optical lens is bright
Primary type divergent rays are collimated, and formation connects subparallel illuminating ray, and the illuminating ray forms one on the vertical screen of front
Secondary hot spot and its primary light shape, primary light shape are the primary strong hot spot being formed in around a hot spot,
So that light source is carried out lateral displacement relative to lens, form secondary hot spot and its continuous secondary light shape,
It is superimposed to form far lighting light shape by the dynamic of primary light shape and secondary light shape, the primary light shape and secondary light
The dynamic superposition of shape includes the superposition of light shape change in shape or change in location.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that so that light source is run to every
It is turned off when a certain position in a period, remaining position is open state, so that before when corresponding to the position
The light shape with dark space is formed on square vertical screen, to realize adaptive road function, i.e. ADB function,
That is, the light shape by dynamic mobile to form local dark space in conjunction with to rapidly switching off for light source, realize adaptive remote
Light function.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that corresponding in the light source of light source
Lens or lens group in front of light emission side setting include PBS optical splitter, camera CMOS chip and imaging lens group intelligence shine
Bright light control system carries out the adaptive road function of car light and adjusts,
The intelligent lighting light control system include the LCD liquid crystal display for being set to PBS optical splitter lens opposite side, LCOS chip or
Dmd chip；
Light a part that the intelligent lighting light control system issues is through PBS optical splitter and is irradiated to imaging lens group,
Ultimately form illumination light shape；
Another part light that the intelligent lighting light control system issues through PBS spectrophotometric reflection to camera CMOS core
The opposite direction of piece is mapped to CMOS chip to avoid the illumination of lighting system, generates interference to CMOS chip；
And environment light is then redirected back into the imaging lens group with illumination path,
A part of light of environment light forms information source by PBS spectrophotometric reflection to sensitive chip integrated circuit, passes through
Sensitive chip integrated circuit CMOS chip, for converting optical signals to electric signal, arithmetic system is obtained by analyzing electric signal
Conclusion, and operation result is transferred to the execution system of the control circuit board including LCD, LCOS, dmd chip, carry out analysis and
After processing, the information such as road vehicles, pedestrian are judged, and control intelligent lighting light control system and carry out adaptive road function adjusting
Control.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that the dark space includes: in light
Formed in the moving process of source, positioned at primary light shape and light source moving displacement to a certain position when the corresponding dark space of shutdown between
Transition dark space, i.e., low bright transition region and light source true dark space corresponding when turning off.
It is described according to the present invention a kind of to there is adaptive road function car light, which is characterized in that in the saturating of light source and light source
Increase secondary light-distribution part between mirror or lens group, light shape is changed, the secondary light-distribution part effect is to primary light shape
Carry out the change of light shape and position.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that light source in a certain transverse direction
Region carries out quick straight line shift reciprocately, just forms continuous illumination light shape.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that using rotation light supply apparatus
It is displaced light source relative to lens.
A kind of adaptive road function car light of car light according to the present invention, which is characterized in that the rotation light-source system
Light source assembly is formed by the reflective chip of LED, metal substrate, so that light source assembly is with light-emitting surface normal direction rotary shaft
High speed rotation is carried out, the speed can recognize frequency not less than naked eyes.
A kind of adaptive road function car light of car light according to the present invention, which is characterized in that the movement of LED luminescence chip
Frequency is 50-500 hertz, and cut-offfing frequency is 1000-50000 hertz.
A kind of adaptive road function car light of car light according to the present invention, which is characterized in that the movement of LED luminescence chip
Frequency is 50 hertz, and cut-offfing frequency is 1000 hertz, and it is 1 millisecond that the rotation light source, which cut-offs the primary time, very dark with realization
Corresponding true dark space when the transition dark space on 0.5 degree of area periphery, i.e., low bright transition region and 1 millisecond of time inner light source shutdown.
It is described according to the present invention a kind of to there is adaptive road function car light, which is characterized in that light source relative to lens into
Line position, which is moved, refers to that conversion frequency is greater than the frame number that human eye can identify, 30 frame typically larger than per second.
It is described a kind of with adaptive road function car light according to the present invention, which is characterized in that the LED luminescence chip of light source
For plurality of LED luminous chip, can facing light sources lens or lens group focus carry out front and back defocus 0-5mm, to carry out multidimensional
Adaptive road function is adjusted.
The LED luminescence chip is more LED luminescence chips, and there are 0.1 millimeter to 0.5 between more LED luminescence chips
The gap of millimeter.
The front and back defocus 0-5mm that light source is carried out for lens or lens group focus drives movement mechanism real by rotation motor
It is existing.
It is preferred that the luminescence chip is selected from rectangle luminescence chip and square luminescence chip.
The rectangle luminescence chip is selected from the rectangle luminescence chip of 1mm*1-5mm, the square luminescence chip choosing
From the square luminescence chip of 1-5mm*1-5mm.
According to the present invention, light deformationization can be divided into change in shape and displacement, be also possible to the compound change of shape and position
Change.The present invention is different from traditional static car light function, by dynamic light shape quickly change and formed superimposed light shape come
Realize car light function.Advantage is:
1, facilitate to realize biggish illumination region by less LED luminescence chip.For example pass through light shown in Fig. 2
Shape realizes illumination region shown in Fig. 4.
2, the control of photic-energy transfer is realized by the superposition of dynamic optical shape.Such as illumination light shape shown in Fig. 6 to Figure 12, it can
To realize that the ideal center of far lighting is bright, and gradually dimmed illumination light shape.
3, facilitate to improve light shape uniformity.Even if non-uniform illumination light shape, facilitates after dynamic change and superposition
Improve uniformity.
More particularly, the static adaptive distance light turned off in conjunction with the existing more LED luminescence chips arranged by matrix
Function is compared, and advantage of the present invention is as follows:
1, smaller dark space may be implemented, the control precision of adaptive distance light can be significantly improved.2, can greatly reduce
The quantity of LED luminescence chip can be realized by single led luminescence chip.
3, the controllable multi-chip of the multiple independent switches that can be arranged by matrix jointly controls, and forms matrix light shape, such as
Figure 15, shown in 16.
Detailed description of the invention
Fig. 1 is a kind of optical path schematic diagram of car lamp system of the invention.
Fig. 2 is one of the screen light shape schematic diagram of square LED luminescence chip focal point of the invention.
Screen light shape schematic diagram when Fig. 3 is square LED luminescence chip lateral shift of the invention.
Fig. 4 is screen light shape schematic diagram when square LED luminescence chip transverse direction fast reciprocating of the invention is mobile.
Fig. 5 is the mobile light shape superposition of square LED luminescence chip transverse direction fast reciprocating of the invention, and regional area turns off
When screen light shape schematic diagram.
Fig. 6 is the screen light shape schematic diagram of rectangle LED luminescence chip focal point of the invention.
Fig. 7 is the screen light shape schematic diagram at rectangle LED luminescence chip front and back defocus 1mm of the invention.
Fig. 8 is the screen light shape schematic diagram at rectangle LED luminescence chip front and back defocus 2mm of the invention.
Fig. 9 is the screen light shape schematic diagram at rectangle LED luminescence chip front and back defocus 3mm of the invention.
Figure 10 is the screen light shape schematic diagram at rectangle LED luminescence chip front and back defocus 4mm of the invention.
Figure 11 is the screen light shape schematic diagram at rectangle LED luminescence chip front and back defocus 5mm of the invention.
Figure 12 is the screen light shape superposition of the mobile light shape superposition of fast reciprocating before and after rectangle LED luminescence chip of the invention
Schematic diagram.
Figure 13-Figure 16 shows that the controllable multi-chip of the multiple independent switches that can be arranged by matrix jointly controls respectively,
Form matrix light shape.A indicates the angular range that the periodic reverse of transparent light guide body is swung, and the periodical angle to light shape becomes
It changes.
Figure 17 is camera integral intelligent car light mould group schematic diagram of the present invention.
Figure 18 is the environment light path schematic diagram of camera integral intelligent car light mould group of the present invention.
In figure, 1 is LED light source, and 2 be the corresponding lens of light source or lens group, and 3 be secondary light-distribution part, and 4 be imaging len
Group, 5 be PBS optical splitter, and 6 be camera CMOS chip, 7 be the LCD liquid crystal display for being set to PBS optical splitter lens group opposite side,
LCOS chip or dmd chip are used to form dark space, and 8 be true dark space, and 9 be transition dark space.S is the movement speed of light shape.
Specific embodiment
As shown in Figure 1, the light for the similar Lambertian diverging that LED light source issues is collimated by optical lens, shape
At subparallel illuminating ray is connect, the light shape on the vertical screen of 25 meters of front is as shown in Fig. 2, for upper and lower and each 0.5 degree of left and right
The strong hot spot of left and right, the spot size depends on light source luminescent area, shape and form of lens, as light source is corresponding
Mirror or lens group or the lens with uni-directional diffusion etc..
It is horizontal near the corresponding lens of light source or lens group focus that Fig. 2, Fig. 3 describe a kind of square LED luminescence chip
To the light shape schematic diagram of different location when moving back and forth, Fig. 4 be above-mentioned square LED luminescence chip in the corresponding lens of light source or
The superimposed light shape schematic diagram of lateral faster reciprocal motion near lens group focus.With the light shape of dark space shown in Fig. 5, to realize
Adaptive road function.Fig. 6-Figure 16 shows that the controllable multi-chip of the multiple independent switches that can be arranged by matrix is combined respectively
Control forms matrix light shape.
As shown in Fig. 2, secondary light-distribution part can be increased between light source and lens, light shape is changed.Again by pair
Light source carries out lateral displacement relative to lens, hot spot as shown in Figure 3 is formed, further, to light source in a certain transverse area
Quick straight reciprocating motion is carried out, continuous illumination light shape as shown in Figure 4 is just formed, and on this basis, light source is run
It is turned off when to a certain position, remaining position is open state, light shape as shown in Figure 5 with dark space is formed, to realize
Adaptive road function.
Fig. 2 to Fig. 4 is the method for describing light shaped position Fast transforms and realizing car light function by the superposition of light shape.Fig. 2,
Fig. 3 describes a kind of square LED luminescence chip near the corresponding lens of light source or lens group focus when traverse motion
The light shape of different location is illustrated, and Fig. 4 is above-mentioned square LED luminescence chip near the corresponding lens of light source or lens group focus
The superimposed light shape of lateral faster reciprocal motion is illustrated.
Fig. 5 is that above method combination LED luminescence chip rapidly switches off to form dark space in a certain position, to realize adaptive
The light shape of road function is illustrated.Fig. 6 to Figure 11 is that LED luminescence chip exists relative to the corresponding lens of light source or lens group in Fig. 1
The light shape signal of different location when near focal point is moved forward and backward, Figure 12 is superimposed smooth shape schematic diagram.
Aforesaid way describes light shape and quickly changes and be superimposed explanation to realize car light function.The Fast transforms refer to
Conversion frequency is greater than the frame number that human eye can identify, 30 frame typically larger than per second.The smooth fractal transform can pass through light source and shape
It is realized at the relative displacement of the optical element of light shape, such as reflecting mirror, transparent light guide body.
As shown in figure 13 can by within the scope of certain angle fast reciprocating rotating transparent optical conductor realize light deformation
Change.
The primary light shape as shown in Fig. 2 has certain width (being herein the 0.5 degree of hot spot in left and right), according to the movement of hot spot
Rule realizes complete dark space when the corresponding light source position of hot spot is in closed state within the scope of true dark space, when hot spot is corresponding
Light source position move to except true dark space after be then turned on, then there are a transition dark spaces for complete dark space two sides.
Intermediate dark space as shown in Figure 5, width depend on the movement speed S of light shape and the frequency of open and close.Assuming that hot spot
2.5 degree of each movement of 0.5 degree of width, spot center or so, can be obtained about 5.5 degree shown in Fig. 4 of light shape.
If hot spot makees at the uniform velocity linear reciprocating motion, motion frequency is 50 hertz, then the period of motion that can calculate glossing up is
20 milliseconds, movement velocity is 0.5 degree/millisecond.Assuming that the switching frequency of LED luminescence chip is 1000 hertz, then switch is primary
Time be 1 millisecond, i.e., 0.5 degree of dark space may be implemented from turning off to opening.And the switching frequency of existing control chip can be with
Reach tens of thousands of hertz.
As shown in figure 15, adaptive distance light method provided by the present invention is in the fixed situation of switching frequency, can be with
Local dark space size is adjusted by movement velocity distribution in the control spot motion period, for example needs to reduce in center dark
Area size, can be by by center being speed reduction in hot spot, but the period constant is realized.
Adaptive distance light method provided by the present invention can be controlled under spot motion period and the fixed situation of speed
The switching frequency of LED chip processed adjusts dark space size.
In conclusion the size of minimum dark space and hot spot itself provided by adaptive distance light system provided by the present invention
It is not directly dependent upon, it is related to the switching frequency of the movement velocity of hot spot and LED chip.And the scheme of conventional art, dark space
Size and speck size have direct relation, need to be continuously increased LED chip quantity and reduce spot width constantly to reduce secretly
Sector width, while the main optical unit of corresponding LED chip.
The present invention is different from traditional static car light function, the adaptive road function adjusting method and its lamp system
By the quick variation and superposition of dynamic light shape, and control in conjunction with the quick open and close to light source to realize that car light is adaptively remote
Light function.
According to the present invention, biggish illumination region can be realized by less LED luminescence chip, and passes through dynamic optical shape
The control of photic-energy transfer is realized in superposition, may be implemented that the ideal center of far lighting is bright, and gradually dimmed illumination light shape, dynamic
State changes and facilitates to improve adaptive distance light uniformity after being superimposed.
According to the present invention, combined with the existing more LED luminescence chips arranged by matrix static shutdown it is adaptive far
Light function is compared, and smaller dark space may be implemented, and can significantly improve the control precision of adaptive distance light.
According to the present invention it is possible to jointly control by the controllable multi-chip of multiple independent switches of matrix arrangement, square is formed
Battle array light shape.
According to the present invention, using plurality of LED luminous chip, and relative lens or lens group focus carry out front and back defocus, can
The adaptive road function for carrying out multidimensional is adjusted, that is, same respectively for the object up and down for being located at different distance in front of car light
When implement the control of adaptive road function.
Claims (26)
1. a kind of adaptive road function adjusting method of car light, which is characterized in that
Superposition illumination light shape is formed by the periodically high speed variation of light shape, the periodically high speed variation of the smooth shape can be shape
Shape variation, i.e. the dynamic superposition of light shape or change in location or the two change simultaneously.
2. a kind of adaptive road function adjusting method of car light as described in claim 1, which is characterized in that in conjunction with the period of light shape
Property variation combine light source implementation rapidly switched off, generate one or several local dark space, realize adaptive road function.
3. a kind of adaptive road function adjusting method of car light as claimed in claim 1 or 2, which is characterized in that pass through optical lens
Mirror collimates the class Lambertian divergent rays that LED light source issues, and formation connects subparallel illuminating ray, the illuminating ray
A hot spot and its primary light shape are formed on the vertical screen of front, primary light shape is the primary strong light being formed in around a hot spot
Spot,
So that light source is carried out lateral displacement relative to lens, form secondary hot spot and its continuous secondary light shape,
It is superimposed to form far lighting light shape by the dynamic of primary light shape and secondary light shape, the primary light shape and secondary light shape
Dynamic superposition includes the superposition of light shape change in shape or change in location.
4. a kind of adaptive road function adjusting method of car light as claimed in claim 3, which is characterized in that on this basis, make
Light source is turned off when running to a certain position in each period, remaining position is open state, so that corresponding to the position
When front vertical screen on form the light shape with dark space, to realize adaptive road function, i.e. ADB function,
That is, the light shape by dynamic mobile to form local dark space in conjunction with to rapidly switching off for light source, adaptive distance light function is realized
Energy.
5. a kind of adaptive road function adjusting method of car light as claimed in claim 4, which is characterized in that the dark space includes:
Formed in the light source moving process, positioned at primary light shape and light source moving displacement to a certain position when the corresponding dark space of shutdown
Between transition dark space, i.e., true dark space corresponding to low bright transition region and light source moving displacement.
6. a kind of adaptive road function adjusting method of car light as claimed in claim 3, which is characterized in that light source and lens it
Between increase secondary light-distribution part, for carrying out the change of light shape and position to primary light shape.
7. a kind of adaptive road function adjusting method of car light as claimed in claim 3, which is characterized in that light source in a certain cross
Quick straight line shift reciprocately is carried out to region, forms continuous illumination light shape.
8. a kind of adaptive road function adjusting method of car light as claimed in claim 7, which is characterized in that using rotation light source dress
Setting makes light source carry out quick straight line shift reciprocately relative to lens.
9. a kind of adaptive road function adjusting method of car light as claimed in claim 7, which is characterized in that the rotation light source system
System forms light source assembly by the reflective chip of LED, metal substrate, so that light source assembly carries out high speed rotation with light-emitting surface normal direction rotary shaft
Turn, the speed can recognize frequency not less than naked eyes.
10. a kind of adaptive road function adjusting method of car light as claimed in claim 4, which is characterized in that LED luminescence chip
Motion frequency is 50-500 hertz, and cut-offfing frequency is 1000-50000 hertz.
11. a kind of adaptive road function adjusting method of car light as claimed in claim 1 or 2, which is characterized in that light source relative to
Lens carry out displacement and refer to that conversion frequency is greater than the frame number that human eye can identify, specifically, are greater than 30 frame per second.
12. a kind of adaptive road function adjusting method of car light as described in claim 1, which is characterized in that in the light source of light source
Light emission side setting includes the intelligence of PBS optical splitter, camera CMOS chip and imaging lens group in front of corresponding lens or lens group
Light control system can be illuminated, the adaptive road function of car light is carried out and adjusts,
The intelligent lighting light control system includes LCD liquid crystal display, LCOS chip or the DMD for being set to PBS optical splitter lens opposite side
Chip, LCD are controlled by liquid crystal technology, and LCOS is realized by reflection type liquid crystal technique, DMD by micro-reflector wafer technology
Dark space；
Light a part that the intelligent lighting light control system issues is through PBS optical splitter and is irradiated to imaging lens group, finally
Form illumination light shape；
Another part light that the intelligent lighting light control system issues through PBS spectrophotometric reflection to camera CMOS chip
Opposite direction is mapped to CMOS chip to avoid the illumination of lighting system, generates interference to CMOS chip；
And environment light is then redirected back into the imaging lens group with illumination path,
A part of light of environment light forms information source by PBS spectrophotometric reflection to sensitive chip integrated circuit, and process is photosensitive
Chip integrated circuit CMOS chip, for converting optical signals to electric signal, arithmetic system is drawn a conclusion by analyzing electric signal,
And operation result is transferred to the execution system of the control circuit board including LCD, LCOS, dmd chip, it is analyzed and is handled
Afterwards, judge the information such as road vehicles, pedestrian, and control intelligent lighting light control system and carry out adaptive road function adjusting control
System.
13. a kind of adaptive road function adjusting method as claimed in claim 12, which is characterized in that the PBS optical splitter is set
The focus or focal plane in imaging lens group are set, camera and car light, intelligent lighting light control system and PBS optical splitter share one
A lens group.
14. a kind of adaptive road function adjusting method of car light as claimed in claim 1 or 2, which is characterized in that the LED of light source
Luminescence chip be more LED luminescence chips, can facing light sources lens or lens group focus carry out front and back defocus 0-5mm, with carry out
The adaptive road function of multidimensional is adjusted.
15. one kind has adaptive road function car light, which is characterized in that the class for being issued LED light source by optical lens is bright
Primary type divergent rays are collimated, and formation connects subparallel illuminating ray, and the illuminating ray forms one on the vertical screen of front
Secondary hot spot and its primary light shape, primary light shape are the primary strong hot spot being formed in around a hot spot,
So that light source is carried out lateral displacement relative to lens, form secondary hot spot and its continuous secondary light shape,
It is superimposed to form far lighting light shape by the dynamic of primary light shape and secondary light shape, the primary light shape and secondary light shape
Dynamic superposition includes the superposition of light shape change in shape or change in location.
16. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that so that light source is run to every
It is turned off when a certain position in a period, remaining position is open state, so that front vertical screen when corresponding to the position
It is upper to form the light shape with dark space, to realize adaptive road function, i.e. ADB function,
That is, the light shape by dynamic mobile to form local dark space in conjunction with to rapidly switching off for light source, adaptive distance light function is realized
Energy.
17. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that
Light emission side setting includes PBS optical splitter, camera CMOS chip in front of the corresponding lens of light source or lens group of light source
And the intelligent lighting light control system of imaging lens group, it carries out the adaptive road function of car light and adjusts,
The intelligent lighting light control system includes LCD liquid crystal display, LCOS chip or the DMD for being set to PBS optical splitter lens opposite side
Chip；
Light a part that the intelligent lighting light control system issues is through PBS optical splitter and is irradiated to imaging lens group, finally
Form illumination light shape；
Another part light that the intelligent lighting light control system issues through PBS spectrophotometric reflection to camera CMOS chip
Opposite direction is mapped to CMOS chip to avoid the illumination of lighting system, generates interference to CMOS chip；
And environment light is then redirected back into the imaging lens group with illumination path,
A part of light of environment light forms information source by PBS spectrophotometric reflection to sensitive chip integrated circuit, and process is photosensitive
Chip integrated circuit CMOS chip, for converting optical signals to electric signal, arithmetic system is drawn a conclusion by analyzing electric signal,
And operation result is transferred to the execution system of the control circuit board including LCD, LCOS, dmd chip, it is analyzed and is handled
Afterwards, judge the information such as road vehicles, pedestrian, and control intelligent lighting light control system and carry out adaptive road function adjusting control
System.
18. a kind of as described in claim 15 or 17 have adaptive road function car light, which is characterized in that the dark space packet
Include: formed in the light source moving process, positioned at primary light shape and light source moving displacement to a certain position when shutdown it is corresponding
Transition dark space between dark space, i.e., low bright transition region and light source true dark space corresponding when turning off.
19. a kind of as described in claim 15 or 17 have adaptive road function car light, which is characterized in that in light source and light source
Lens or lens group between increase secondary light-distribution part, light shape is changed, secondary light-distribution part effect is to primary
Light shape carries out the change of light shape and position.
20. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that light source in a certain transverse direction
Region carries out quick straight line shift reciprocately, just forms continuous illumination light shape.
21. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that using rotation light supply apparatus
It is displaced light source relative to lens.
22. a kind of adaptive road function car light of car light as claimed in claim 21, which is characterized in that the rotation light-source system
Light source assembly is formed by the reflective chip of LED, metal substrate, so that light source assembly carries out high speed rotation with light-emitting surface normal direction rotary shaft
Turn, the speed can recognize frequency not less than naked eyes.
23. a kind of adaptive road function car light of car light as claimed in claim 15, which is characterized in that the fortune of LED luminescence chip
Dynamic frequency is 50-500 hertz, and cut-offfing frequency is 1000-50000 hertz.
24. a kind of adaptive road function car light of car light as claimed in claim 16, which is characterized in that the fortune of LED luminescence chip
Dynamic frequency is 50 hertz, and cut-offfing frequency is 1000 hertz, and it is 1 millisecond that the rotation light source, which cut-offs the primary time, to realize very
Corresponding true dark space when the transition dark space on 0.5 degree of dark space periphery, i.e., low bright transition region and 1 millisecond of time inner light source shutdown.
25. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that light source relative to lens into
Line position, which is moved, refers to that conversion frequency is greater than the frame number that human eye can identify, 30 frame typically larger than per second.
26. a kind of as claimed in claim 15 have adaptive road function car light, which is characterized in that the luminous core of the LED of light source
Piece be plurality of LED luminous chip, can facing light sources lens or lens group focus carry out front and back defocus 0-5mm, to carry out multidimensional
Adaptive road function adjust.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772558.XA CN109838748B (en) | 2018-07-13 | 2018-07-13 | Self-adaptive high beam function adjusting method and car lamp thereof |
| PCT/CN2019/088541 WO2020010935A1 (en) | 2018-07-13 | 2019-05-27 | Self-adaptive high-beam function adjustment method and vehicle light involved therein |
| US17/259,793 US11280465B2 (en) | 2018-07-13 | 2019-05-27 | ADB function adjustment method and vehicle light with ADB function |
| JP2021500905A JP7152586B2 (en) | 2018-07-13 | 2019-05-27 | Adaptive high beam function adjustment method and vehicle headlight provided with the same |
| DE112019003562.2T DE112019003562T5 (en) | 2018-07-13 | 2019-05-27 | Adjustment procedure of an adaptive high beam function and vehicle light |
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| CN201810772558.XA CN109838748B (en) | 2018-07-13 | 2018-07-13 | Self-adaptive high beam function adjusting method and car lamp thereof |
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| CN109838748B CN109838748B (en) | 2024-01-26 |
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