CN204740418U - Blue light fluorescence excitation powder formula laser car light based on DMD - Google Patents
Blue light fluorescence excitation powder formula laser car light based on DMD Download PDFInfo
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Abstract
The utility model relates to a blue light fluorescence excitation powder formula laser car light based on DMD belongs to the photoelectrical technique field. This laser car light includes light source, the even light shaping module of collimation, speculum, digital optical processing projection module, fluorescent screen microlens array, light source emission's laser obtains the even rectangle facula unanimous with digital optical processing projection module median word micro mirror array size through the even light shaping module of collimation, and the rectangle facula transmits to digital optical processing projection module through the speculum, and digital optical processing projection module is transmitted to fluorescent screen microlens array after carrying out digital optical processing to the rectangle facula, projects the filament shield through the projecting lens at last, produces self -adaptation car light light type. The utility model provides a pair of blue light fluorescence excitation powder formula laser car light based on DMD has luminance height, low, the small advantage of power consumption, adopts digital micro mirror as the grading component simultaneously, can realize that arbitrary car light light type satisfies self -adaptation lighting requirements.
Description
Technical field
The utility model belongs to optical technical field, relates to a kind of blue-light excited fluorescent powder formula laser car light based on DMD.
Background technology
Car headlamp, also known as " headlight ", is loaded on automobile head both sides, is mainly used in the illumination of driving at night road.In vehicle going at night process, for making driver to drive more comfortable and safely, headlamp lighting should meet certain light distribution requirements.Therefore regulation ECER98 " Uniform provisions of the car headlamp of glow discharge spot lamp is housed about approval " and regulation ECER123 " Uniform provisions about motor vehicle adaptive forward lighting systems (AFS) certification " has in succession been put into effect, wherein ECER123 regulation is for headlamp adaptive system, is the main development direction of future automobile head lamp system.Current adaptive front lamp is mainly divided into following a few class: 1, rely on traditional vehicle lamp system, adds that mechanical deflection module makes the deflection of car light entirety realize different light type; 2, minority uses baffle plate to realize different light type as the headlamp of luminous intensity distribution module by switching different baffle plates; 3, because LED has that the low reliability of cost is high and the advantage that single volume is little uses plurality of LEDs as headlamp light source, different light type is realized by the brightness controlling indivedual LED.Above adaptive front lamp has the problem of a general character: attainable light type is very limited, self-adaptation light type is exchanged for by space, wherein mechanical type can only realize the deflection of simple light type and can not realize other more complicated illuminations, baffle-type is also realize light type limited amount, and in recent years because the shortcoming that the efficiency of light energy utilization of baffle-type headlamp is not high is eliminated gradually.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of blue-light excited fluorescent powder formula laser car light based on DMD, adopt laser as vehicle lamp light source, have that brightness is high, consume energy low, that volume is little advantage, adopt digital micro-mirror as light distribution element simultaneously, any light type can be realized and meet self-adaptation lighting requirement.
For achieving the above object, the utility model provides following technical scheme:
Based on a blue-light excited fluorescent powder formula laser car light of DMD, this laser car light comprises light source, collimates even light shaping module, catoptron, digital light processing projection module, fluorescent plate microlens array; The laser that light source is launched obtains the uniform rectangular hot spot with digital micromirror array consistent size in digital light processing projection module through the even light shaping module of collimation, then digital light processing projection module is transferred to through catoptron, digital light processing projection module transfers to fluorescent plate microlens array after carrying out digital light process to rectangular light spot, finally by projection lens projects to filament shield, produce self-adaptation car light type.
Further, described light source is many high-power blue light laser diodes.
Further, the even light shaping module of described collimation comprises and comprises collimation lens, condenser lens, fly's-eye lens, integration condenser lens successively.
Further, the single lenticule in described fly's-eye lens is rectangle, and the length breadth ratio of rectangle is consistent with the length breadth ratio of digital micromirror array.
Further, the focal beam spot angle of divergence of described condenser lens is within fly's-eye lens acceptance angle.
Further, described digital light processing projection module comprises digital micromirror array device and driving control system thereof and projection lens.
Further, described fluorescent plate microlens array Miniature square connected in star is as base plate, and yellow fluorescent powder, as top cover, is placed in lenticule focus place by microlens array.
The beneficial effects of the utility model are: a kind of blue-light excited fluorescent powder formula laser car light based on DMD that the utility model provides, digital light processing projection technology is utilized to carry out shaping luminous intensity distribution to laser, blue light images is converted into White-light image by fluorescent plate microlens array, this car light not only has that brightness is high, consume energy low, that volume is little advantage, and is a self-adaptation car light that can realize any car light type.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the system construction drawing of laser car light described in the utility model;
Fig. 2 is fluorescent plate structural drawing;
Wherein, 1 in Fig. 1 is blue light laser diode; 2 is collimation lens; 3 is condenser lens; 4 is fly's-eye lens; 5 is integration condenser lens; 6 is catoptron; 7 is Digital Micromirror Device; 8 is fluorescent plate; 9 is projection lens; 10 is filament shield; Fig. 2 (a) is front elevation, and Fig. 2 (b) is side view.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
A kind of blue-light excited fluorescent powder formula laser car light based on DMD that the utility model provides, profit adopts blue laser as light source, optics homogenize shaping is carried out to it and obtains uniform rectangular hot spot, carry out light process through digital micro-mirror and obtain corresponding blue light images, utilize blue laser to excite yellow fluorescent powder to produce white light principle and obtain black white image, last emergent light realizes various self-adaptation car light type through projection lens projects to a 25 meter distant place, thus realizes self-adaptation illumination.As shown in Figure 1, laser car light comprises light source, collimates even light shaping module, catoptron, digital light processing projection module, fluorescent plate microlens array; The laser that light source is launched obtains the uniform rectangular hot spot with digital micromirror array consistent size through the even light shaping module of collimation, rectangular light spot transfers to digital light processing projection module through catoptron, digital light processing projection module transfers to fluorescent plate microlens array after carrying out digital light process to rectangular light spot, fluorescent plate microlens array is used for image to be converted into White-light image, finally by projection lens projects to filament shield, produce self-adaptation car light type.
Light source is made up of many high-power blue light laser diodes, and laser diode quantity, depending on single LD power, makes last total bright dipping lumen number >=1000lm.
High-power blue laser obtains the blue light uniform rectangular hot spot with digital micromirror array consistent size through collimating even photosystem, light obtains corresponding blue light images through the process of micro mirror array digital light, blue light images transfers to fluorescent plate microlens array and obtains corresponding White-light image, be met the car light type of vehicle light illumination standard to 25m distant place car light filament shield finally by projection lens projects, exporting light type can by controlling any conversion of micro mirror array each pixel deflection.
Collimate even light shaping module to comprise and comprise collimation lens, condenser lens, fly's-eye lens, integration condenser lens successively.Laser is through fly's-eye lens homogenize beam splitting, and refinement light is focused on its focal plane by condenser lens and obtains with digital micromirror array size than consistent rectangular uniform blue light hot spot, and beam angle controls within 12 °.
Single lenticule in fly's-eye lens is rectangle, and the length breadth ratio of rectangle is consistent with the length breadth ratio of digital micromirror array.
Condenser lens collimation laser is first used to focus on, to its homogenize shaping after its focal plane place obtains a large spot, the gained focal beam spot angle of divergence within fly's-eye lens acceptance angle, should can increase single compound eye lenticule bore by this method, reduces lenticule quantity simultaneously.
Digital light process DLP projection module comprises digital micromirror array device and driving control system thereof and projection lens, Digital Micromirror Device obtains respective image after launching spot is carried out digital light process and projects projection lens, in this patent projection lens the size of digital micromirror array ratio need be converted into filament shield size than consistent (such as, the size of the 16:9 of micro mirror array is converted to 5.2:1 than image), so can make full use of micro mirror array area.
Digital Micromirror Device (Digital Micro mirror Device), be called for short DMD, it is that a chip is integrated with a large amount of micro mirrors, by microprocessor controls, under the effect of electronic switch, each micro mirror can be turned to positive and negative two positions by independent high frequency, the time that microcontroller keeps after controlling the upset of each micro mirror by pulse width size, and screen produces the grey scale image of different brightness.The hot spot effect of expecting just can be realized by the combination of certain micro mirror array.DMD micro mirror array is the image that deflection for the light being incident in different pixels point being carried out different directions obtains car light type, and projection lens gained picture is amplified at double 25m filament shield at a distance.
Adopt fluorescent plate microlens array as white light conversion devices, adopt by several rectangular recess arrays as base plate, microlens array is as top cover, by yellow fluorescent powder as lenticule focus place, for the blue laser from base plate incidence is converted into white light, white light makes it along former blue light paths outgoing through lenticule collimation, and then blue light images is converted into White-light image.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (7)
1., based on a blue-light excited fluorescent powder formula laser car light of DMD, it is characterized in that: this laser car light comprises light source, collimates even light shaping module, catoptron, digital light processing projection module, fluorescent plate microlens array; The laser that light source is launched obtains the uniform rectangular hot spot with digital micromirror array consistent size in digital light processing projection module through the even light shaping module of collimation, rectangular light spot transfers to digital light processing projection module through catoptron, digital light processing projection module transfers to fluorescent plate microlens array after carrying out digital light process to rectangular light spot, finally by projection lens projects to filament shield, produce self-adaptation car light type.
2. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 1, is characterized in that: described light source is many high-power blue light laser diodes.
3. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 1, is characterized in that: the even light shaping module of described collimation comprises and comprises collimation lens, condenser lens, fly's-eye lens, integration condenser lens successively.
4. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 3, is characterized in that: the single lenticule in described fly's-eye lens is rectangle, and the length breadth ratio of rectangle is consistent with the length breadth ratio of digital micromirror array.
5. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 3, is characterized in that: the focal beam spot angle of divergence of described condenser lens is within fly's-eye lens acceptance angle.
6. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 1, is characterized in that: described digital light processing projection module comprises digital micromirror array device and driving control system thereof and projection lens.
7. a kind of blue-light excited fluorescent powder formula laser car light based on DMD according to claim 2, it is characterized in that: described fluorescent plate microlens array Miniature square connected in star is as base plate, yellow fluorescent powder, as top cover, is placed in lenticule focus place by microlens array.
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| CN106195859A (en) * | 2016-08-24 | 2016-12-07 | 上海小糸车灯有限公司 | A kind of automobile intelligent rear light based on DLP shadow casting technique |
| CN106439673A (en) * | 2016-08-24 | 2017-02-22 | 上海小糸车灯有限公司 | Reflecting type automobile tail lamp adopting digital light processing (DLP) projector as light source |
| CN106482065A (en) * | 2016-11-03 | 2017-03-08 | 武汉通畅汽车电子照明有限公司 | A kind of laser alignment unit and its automobile-used superelevation luminous flux light source module |
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| CN106594620A (en) * | 2016-11-03 | 2017-04-26 | 武汉通畅汽车电子照明有限公司 | Novel intelligent automobile lamp module and application method thereof |
| CN107101154A (en) * | 2016-02-22 | 2017-08-29 | 法雷奥照明公司 | Light-beam projecting device, illumination and headlamp module provided with light source matrix |
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| CN106195859B (en) * | 2016-08-24 | 2019-01-25 | 上海小糸车灯有限公司 | A kind of automobile intelligent rear light based on DLP shadow casting technique |
| CN106439673A (en) * | 2016-08-24 | 2017-02-22 | 上海小糸车灯有限公司 | Reflecting type automobile tail lamp adopting digital light processing (DLP) projector as light source |
| CN106195859A (en) * | 2016-08-24 | 2016-12-07 | 上海小糸车灯有限公司 | A kind of automobile intelligent rear light based on DLP shadow casting technique |
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