The content of the invention
In view of this, it is existing to solve the invention provides a kind of vehicle light illumination system and its driving method
Can realize car light in technology the vehicle light illumination system cost of free switching is higher under different occasions to ask
Topic.
To achieve the above object, the present invention provides following technical scheme:
A kind of vehicle light illumination system, including laser, aperture device and fluorescent apparatus;
The laser is used to launch exciting light;
The aperture device includes diaphragm and drive component, and the diaphragm includes light tight region and multiple not
The transmission region of similar shape, the drive component is according to the lighting demand of driver by the corresponding of the diaphragm
Transmission region is switched on the emitting light path of the exciting light, is excited described with by the transmission region
The beam cross section of light is shaped to corresponding shape;
Respective shapes are produced under the irradiation of the exciting light of fluorescent material on the fluorescent apparatus after the shaping
Fluorescence, and by the fluorescence come the illuminating white light of shape respective shapes.
Preferably, the diaphragm is circular plate structure, and the drive component is by driving the diaphragm
The switching of transmission region of different shapes is realized around central axis;
Or, the diaphragm is square plate shape structure, and the drive component is put down by driving the diaphragm
In-migration realizes the switching of transmission region of different shapes.
Preferably, when the diaphragm is circular plate structure, the drive component is stepper motor;
When the diaphragm is square plate shape structure, the drive component is slide rail or marmem.
Preferably, there are the first lens, the aperture device between the laser and the aperture device
There are the second lens and the fluorescent apparatus between, first lens and the second lens are used to enter light
Row collimation.
Preferably, the fluorescent apparatus include fluorescent material and substrate, and the fluorescent material is arranged at the substrate
On, the substrate is used to support the fluorescent material, and the fluorescent material is radiated.
Preferably, the vehicle light illumination system also includes being arranged on the reflector above the fluorescent apparatus,
The reflector is used to transmiting the exciting light and reflects fluorescence that the fluorescent apparatus produce and unabsorbed
Exciting light, so that the fluorescence and unabsorbed exciting light exiting parallel, wherein, the fluorescent material position
In the focal point of the reflector.
Preferably, the exciting light is blue light, and the fluorescence is gold-tinted;Or, the exciting light is purple
Outer light, the fluorescence and blue light and gold-tinted.
Preferably, when the exciting light is blue light, the reflector is corresponding with the blue light incoming position
Region there is through hole so that the blue light is incided inside the reflector through the through hole.
Preferably, when the exciting light is ultraviolet light, the reflector is reflected from ultraviolet transmissive light
The material of light is made.
A kind of driving method of vehicle light illumination system, is applied to the vehicle light illumination system described in as above any one,
The driving method includes:
Receive the lighting demand instruction of driver's input;
The corresponding transmission region of diaphragm is switched to the emitting light path of exciting light according to lighting demand instruction
On, so that the beam cross section of the exciting light is shaped to corresponding shape by the transmission region, and pass through
The fluorescence that excitation after the shaping goes out carrys out the illuminating white light of shape respective shapes.
Compared with prior art, technical scheme provided by the present invention has advantages below:
Vehicle light illumination system provided by the present invention and its driving method, by drive component by diaphragm not
The transmission region of similar shape is switched on the emitting light path of exciting light, by transmission region by the light of exciting light
Area of beam is shaped to corresponding shape to obtain the lighting pattern suitable for light illumination modes such as dipped beam or distance light,
This vehicle light illumination system is easier to implement, and cost is relatively low.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
An embodiment provides a kind of vehicle light illumination system, the vehicle light illumination system is applicable
In the self adaptation LASER Light Source illuminator of automotive lighting, with reference to Fig. 1, the vehicle light illumination system includes laser
Device 1, aperture device 2 and fluorescent apparatus 3.
Certainly, in the present embodiment, vehicle light illumination system may also include positioned at laser 1 and aperture device 2
Between the first lens 4, the second lens 5 between aperture device 2 and fluorescent apparatus 3 and be arranged on glimmering
The reflector 6 of the top of light powder disk 3.Wherein, the first lens 4 and the second lens 5 are used to carry out standard to light
Directly.Reflector 6 be used for transmission laser device 1 transmitting exciting light reflected fluorescent light device 3 produce fluorescence with
And the unabsorbed exciting light of reflection, so that the fluorescence and unabsorbed exciting light exiting parallel.
In the present embodiment, laser 1 is used to launch exciting light, optionally, the exciting light be blue laser or
Ultraviolet light.When the exciting light is blue light, region tool corresponding with blue light incoming position on reflector 6
Have on the fluorescent material of the fluorescent apparatus 3 that through hole, i.e. blue light be transmitted through inside reflector 6 by the through hole,
Now the fluorescent material on fluorescent apparatus 3 is yellow fluorescent powder, gold-tinted that the yellow fluorescent powder is inspired and not
Absorbed blue light forms illuminating white light.When the exciting light is ultraviolet light, reflector 6
It is made up of the material of ultraviolet transmissive light reflection visible ray, i.e., ultraviolet light can be radiated at instead through reflector 6
On the fluorescent material of the fluorescent apparatus 3 inside light cup 6, now the fluorescent material on fluorescent apparatus 3 is blue glimmering
The mixed powder of light powder and yellow fluorescent powder, the gold-tinted and blue light that the mixed powder is inspired forms illumination and uses
White light.Certainly, the fluorescent material is not limited to yellow fluorescent powder, can be the glimmering of the colors such as red, green
Light powder, as long as the mixed light of the outgoing that can be excited is white light.In addition, reflector can be to excite
The incident reflector corresponding region transmission exciting light with reflector of light, the material of other region reflectance coatings is made.
Transmission exciting light can be made or opened hole for light transmissive material, and this is not restricted.
Aperture device 2 includes diaphragm 20 and drive component 21.With reference to Fig. 2, Fig. 2 is flat for diaphragm 20
Face structural representation.Diaphragm 20 is circular plate-like structure, and drive component 21 is by driving diaphragm 20
The switching of transmission region of different shapes is realized around central axis.Diaphragm 20 includes light tight region 20a
With multiple transmission regions of different shapes, printing opacity of the multiple transmission region of different shapes including L-shaped
Region 20b and square transmission region 20c.Therefore, the light beam through the exciting light of transmission region 20b cuts
Face can be shaped to be applied to the L-shaped of dipped headlight, through the beam cross section of the exciting light of transmission region 20c
Can be shaped to be applied to the square of high beam.Certainly, in other embodiments, diaphragm 20 can also be wrapped
The transmission region of other shapes is included, as shown in Figure 3, it is adaptable to which the transmission region 20b of dipped headlight can be with
It is triangle, and the transmission region 20c for being applied to high beam can also be regular polygon or circle etc., sheet
Invention is not limited to that.
In the present embodiment, exciting light through the transmission region 20b on diaphragm 20 by producing dipped headlight
Lighting pattern, the lighting pattern are as shown in figure 4, the country such as China and U.S. that are so kept to the right in vehicle
State, the driver that the vehicle for coming is sailed in left front can improve driving peace against the influence of car light irradiation
Quan Xing.And for the occasion using high beam, due to the typically no specific lighting pattern limitation of car light,
Therefore, exciting light can pass through the square transmission region 20c on diaphragm 20 to be formed far in the present embodiment
Optical illumination.
Because transmission region 20b and 20c can make exciting light transmission, light tight region 20a to reflect or absorb
Exciting light, and reflections or absorption of the light tight region 20a to exciting light can lose the portion for inciding diaphragm 20
Shunt excitation lights, and the shape that therefore, it can design transmission region is only slightly smaller than and incides on diaphragm 20
The beam cross section of exciting light, can either so ensure that the light beam of exciting light is shaped to the light beam of given shape
Section, ensure that the light efficiency of exciting light is not weakened severely again.
In the present embodiment, the drive pattern of diaphragm 20 is rotary type, and now, drive component 21 can be with
It is stepper motor.Specifically, drive component 21 is located at the light tight region of the diaphragm 20 of plate-like structure
20a, with reference to Fig. 2, drive component 21 is according to the lighting demand of driver by the corresponding transparent area of diaphragm 20
Domain is switched on the emitting light path of exciting light, with by the transmission region that the beam cross section of exciting light is whole
Form corresponding shape.
For example, when driver needs to open dipped headlight, drive component 21 is by driving diaphragm 20 in
Central axis, transmission region 20b is turned in the light path of exciting light, so that transmission region 20b will
The beam cross section of exciting light is shaped to the lighting pattern suitable for dipped beam;When driver needs to open high beam
When, drive component 21 turns in the light path of exciting light transmission region 20c, so that transmission region 20c
The beam cross section of exciting light is shaped to the lighting pattern suitable for distance light.
Certainly, the present invention is not limited to this, in other embodiments, as shown in figure 5, diaphragm 20 is also
Can be square plate-like structure, drive component 21 can be by driving the upper and lower translation of diaphragm 20 come real
The switching of existing different transmission regions, now, drive component 21 can be slide rail or marmem etc..
In the present embodiment, fluorescent apparatus 3 include fluorescent material 30 and substrate 31.Fluorescent material 30 is arranged at base
On plate 31, the fluorescence of respective shapes is produced under the irradiation of exciting light of the fluorescent material 30 after shaping, it is described
Fluorescence and illuminating white light, optionally, this implementation be not mixed into by the exciting light that the fluorescent material absorbs
Exciting light in example is blue light, and fluorescence is gold-tinted.Substrate 31 is used to support fluorescent material 30, and to fluorescent material
30 are radiated.Under the exciting of exciting light, the temperature of fluorescent material 30 easily go out by too high generation hot-quenching, and
Hot-quenching is gone out and can be reduced the life-span of fluorescent material 30, therefore, the substrate 31 in the present embodiment is needed preferably
Heat conduction and heat radiation effect, with control fluorescent material 30 temperature be no more than critical value.
In the present embodiment, the blue light exciting light that blue laser 1 sends is by incident after the first lens 4
Onto diaphragm 20, the shape of the transmission region according to diaphragm 20 is different, and the beam cross section of exciting light can be with
Corresponding shape is shaped to, the exciting light light beam after being shaped afterwards is incided by after the second lens 5
Fluorescent material 30 above substrate 31 so that fluorescent material 30 is excited to produce gold-tinted fluorescence.Due to fluorescence
Powder 30 is not 100% for the absorptivity of exciting light, so have part exciting light can not be by fluorescent material 30
Absorb, but from the surface outgoing of fluorescent material 30 together with fluorescence after being scattered by fluorescent material 30, this part is swashed
The luminous 10%-15% for accounting for exciting light gross energy, afterwards yellow fluorescence with do not absorbed by fluorescent material 30
Blue light exciting light is mixed to form illuminating white light, and white light incides reflector 6, because fluorescent material 30 sets
The focal point in reflector 6 is put, therefore, reflector 6 can be reflected white light in the way of directional light
Go.
Because fluorescence sheet is as eliminating coherence light, the exciting light that part is not absorbed by fluorescent material is by fluorescent material 30
Also coherence is eliminated after surface scattering significantly, therefore, it can effectively mitigate final outgoing white light dissipate
Spot effect, improves the illuminating effect and visual security of automobile lamp.
The vehicle light illumination system that the present embodiment is provided, by drive component by printing opacity of different shapes on diaphragm
Region is switched on the emitting light path of exciting light, is shaped to the beam cross section of exciting light by transmission region
Corresponding shape obtains the lighting pattern suitable for light illumination modes such as dipped beam or distance light, and this car light shines
Bright system is easier to implement, and cost is relatively low.
Another embodiment of the present invention additionally provides a kind of driving method of vehicle light illumination system, is applied to
State vehicle light illumination system disclosed in any embodiment, the flow chart of the driving method as shown in fig. 6, including:
S601:Receive the lighting demand instruction of driver's input;
When driver needs to open dipped headlight, driver is input into corresponding lower beam illumination to drive component 21
Requirement command, so that the transmission region 20b on diaphragm 20 to be turned to drive component 21 light path of exciting light
On, form corresponding lower beam illumination pattern;When driver needs to open high beam, driver is to driving
Component 21 is input into corresponding far lighting requirement command, so that drive component 21 is by the transparent area on diaphragm 20
Domain 20c is turned in the light path of exciting light, forms corresponding far lighting pattern.Specifically, driver can
Lighting demand instruction is input into by stirring action bars or pressing keys.
S602:The corresponding transmission region of diaphragm is switched to by going out for exciting light according to lighting demand instruction
Penetrate in light path, so that the beam cross section of the exciting light is shaped to corresponding shape by the transmission region,
And by fluorescence that the excitation after the shaping goes out come the illuminating white light of shape respective shapes.
After driver's input lighting demand instruction, drive component 21 is instructed diaphragm 20 according to lighting demand
Corresponding transmission region is switched on the emitting light path of exciting light, so that the transmission region is by the exciting light
Beam cross section be shaped to corresponding shape, and by fluorescence that the excitation after the shaping goes out come
Form the illuminating white light of respective shapes.
For example, drive component 21 switches the transmission region 20b on diaphragm 20 according to lower beam illumination requirement command
Onto the emitting light path of exciting light, transmission region 20b can be L-shaped by the beam cross section shaping of exciting light, whole
Beam cross section after shape is that the exciting light of L-shaped is irradiated to when on fluorescent material 30, after inspiring fluorescence and outgoing
Fluorescence formed L-shaped lighting pattern, the yellow fluorescence mix with unabsorbed blue light exciting light after formation
The illuminating white light of respective shapes.
The driving method of the vehicle light illumination system that the present embodiment is provided, will be different on diaphragm by drive component
The transmission region of shape is switched on the emitting light path of exciting light, by transmission region by the light beam of exciting light
Section is shaped to corresponding shape to obtain the lighting pattern suitable for light illumination modes such as dipped beam or distance light,
This vehicle light illumination system is easier to implement, and cost is relatively low.
Each embodiment is described by the way of progressive in this specification, and each embodiment is stressed
The difference with other embodiment, between each embodiment identical similar portion mutually referring to.
For device disclosed in embodiment, because it is corresponded to the method disclosed in Example, so description
It is fairly simple, related part is referring to method part illustration.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use
The present invention.Various modifications to these embodiments will be for those skilled in the art aobvious and easy
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.